/*
* avconv main
* Copyright ( c ) 2000 - 2011 The libav developers .
*
* This file is part of Libav .
*
* Libav is free software ; you can redistribute it and / or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation ; either
* version 2.1 of the License , or ( at your option ) any later version .
*
* Libav is distributed in the hope that it will be useful ,
* but WITHOUT ANY WARRANTY ; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the GNU
* Lesser General Public License for more details .
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav ; if not , write to the Free Software
* Foundation , Inc . , 51 Franklin Street , Fifth Floor , Boston , MA 02110 - 1301 USA
*/
# include "config.h"
# include <ctype.h>
# include <string.h>
# include <math.h>
# include <stdlib.h>
# include <errno.h>
# include <signal.h>
# include <limits.h>
# include <unistd.h>
# include "libavformat/avformat.h"
# include "libavdevice/avdevice.h"
# include "libswscale/swscale.h"
# include "libavutil/opt.h"
# include "libavcodec/audioconvert.h"
# include "libavutil/audioconvert.h"
# include "libavutil/parseutils.h"
# include "libavutil/samplefmt.h"
# include "libavutil/colorspace.h"
# include "libavutil/fifo.h"
# include "libavutil/intreadwrite.h"
# include "libavutil/dict.h"
# include "libavutil/mathematics.h"
# include "libavutil/pixdesc.h"
# include "libavutil/avstring.h"
# include "libavutil/libm.h"
# include "libavformat/os_support.h"
# if CONFIG_AVFILTER
# include "libavfilter / avfilter.h"
# include "libavfilter / avfiltergraph.h"
# include "libavfilter / vsrc_buffer.h"
# endif
# if HAVE_SYS_RESOURCE_H
# include <sys/types.h>
# include <sys/time.h>
# include <sys/resource.h>
# elif HAVE_GETPROCESSTIMES
# include <windows.h>
# endif
# if HAVE_GETPROCESSMEMORYINFO
# include <windows.h>
# include <psapi.h>
# endif
# if HAVE_SYS_SELECT_H
# include <sys/select.h>
# endif
# include <time.h>
# include "cmdutils.h"
# include "libavutil/avassert.h"
const char program_name [ ] = " avconv " ;
const int program_birth_year = 2000 ;
/* select an input stream for an output stream */
typedef struct StreamMap {
int disabled ; /** 1 is this mapping is disabled by a negative map */
int file_index ;
int stream_index ;
int sync_file_index ;
int sync_stream_index ;
} StreamMap ;
/**
* select an input file for an output file
*/
typedef struct MetadataMap {
int file ; //< file index
char type ; //< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
int index ; //< stream/chapter/program number
} MetadataMap ;
static const OptionDef options [ ] ;
static const char * last_asked_format = NULL ;
static AVDictionary * ts_scale ;
static StreamMap * stream_maps = NULL ;
static int nb_stream_maps ;
static AVDictionary * codec_names ;
/* first item specifies output metadata, second is input */
static MetadataMap ( * meta_data_maps ) [ 2 ] = NULL ;
static int nb_meta_data_maps ;
static int metadata_global_autocopy = 1 ;
static int metadata_streams_autocopy = 1 ;
static int metadata_chapters_autocopy = 1 ;
static int chapters_input_file = INT_MAX ;
/* indexed by output file stream index */
static int * streamid_map = NULL ;
static int nb_streamid_map = 0 ;
static int frame_width = 0 ;
static int frame_height = 0 ;
static float frame_aspect_ratio = 0 ;
static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE ;
static enum AVSampleFormat audio_sample_fmt = AV_SAMPLE_FMT_NONE ;
static int max_frames [ 4 ] = { INT_MAX , INT_MAX , INT_MAX , INT_MAX } ;
static AVRational frame_rate ;
static float video_qscale = 0 ;
static uint16_t * intra_matrix = NULL ;
static uint16_t * inter_matrix = NULL ;
static const char * video_rc_override_string = NULL ;
static int video_disable = 0 ;
static int video_discard = 0 ;
static unsigned int video_codec_tag = 0 ;
static char * video_language = NULL ;
static int same_quant = 0 ;
static int do_deinterlace = 0 ;
static int top_field_first = - 1 ;
static int me_threshold = 0 ;
static int intra_dc_precision = 8 ;
static int qp_hist = 0 ;
# if CONFIG_AVFILTER
static char * vfilters = NULL ;
# endif
static int intra_only = 0 ;
static int audio_sample_rate = 0 ;
# define QSCALE_NONE -99999
static float audio_qscale = QSCALE_NONE ;
static int audio_disable = 0 ;
static int audio_channels = 0 ;
static unsigned int audio_codec_tag = 0 ;
static char * audio_language = NULL ;
static int subtitle_disable = 0 ;
static char * subtitle_language = NULL ;
static unsigned int subtitle_codec_tag = 0 ;
static int data_disable = 0 ;
static unsigned int data_codec_tag = 0 ;
static float mux_preload = 0.5 ;
static float mux_max_delay = 0.7 ;
static int64_t recording_time = INT64_MAX ;
static int64_t start_time = 0 ;
static int64_t input_ts_offset = 0 ;
static int file_overwrite = 0 ;
static AVDictionary * metadata ;
static int do_benchmark = 0 ;
static int do_hex_dump = 0 ;
static int do_pkt_dump = 0 ;
static int do_psnr = 0 ;
static int do_pass = 0 ;
static char * pass_logfilename_prefix = NULL ;
static int video_sync_method = - 1 ;
static int audio_sync_method = 0 ;
static float audio_drift_threshold = 0.1 ;
static int copy_ts = 0 ;
static int copy_tb ;
static int opt_shortest = 0 ;
static char * vstats_filename ;
static FILE * vstats_file ;
static int opt_programid = 0 ;
static int copy_initial_nonkeyframes = 0 ;
static int rate_emu = 0 ;
static int audio_volume = 256 ;
static int exit_on_error = 0 ;
static int using_stdin = 0 ;
static int verbose = 1 ;
static int thread_count = 1 ;
static int64_t video_size = 0 ;
static int64_t audio_size = 0 ;
static int64_t extra_size = 0 ;
static int nb_frames_dup = 0 ;
static int nb_frames_drop = 0 ;
static int input_sync ;
static uint64_t limit_filesize = 0 ;
static int force_fps = 0 ;
static char * forced_key_frames = NULL ;
static float dts_delta_threshold = 10 ;
static int64_t timer_start ;
static uint8_t * audio_buf ;
static uint8_t * audio_out ;
static unsigned int allocated_audio_out_size , allocated_audio_buf_size ;
static short * samples ;
static AVBitStreamFilterContext * video_bitstream_filters = NULL ;
static AVBitStreamFilterContext * audio_bitstream_filters = NULL ;
static AVBitStreamFilterContext * subtitle_bitstream_filters = NULL ;
# define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
struct InputStream ;
typedef struct OutputStream {
int file_index ; /* file index */
int index ; /* stream index in the output file */
int source_index ; /* InputStream index */
AVStream * st ; /* stream in the output file */
int encoding_needed ; /* true if encoding needed for this stream */
int frame_number ;
/* input pts and corresponding output pts
for A / V sync */
//double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
struct InputStream * sync_ist ; /* input stream to sync against */
int64_t sync_opts ; /* output frame counter, could be changed to some true timestamp */ //FIXME look at frame_number
AVBitStreamFilterContext * bitstream_filters ;
AVCodec * enc ;
/* video only */
int video_resample ;
AVFrame pict_tmp ; /* temporary image for resampling */
struct SwsContext * img_resample_ctx ; /* for image resampling */
int resample_height ;
int resample_width ;
int resample_pix_fmt ;
AVRational frame_rate ;
float frame_aspect_ratio ;
/* forced key frames */
int64_t * forced_kf_pts ;
int forced_kf_count ;
int forced_kf_index ;
/* audio only */
int audio_resample ;
ReSampleContext * resample ; /* for audio resampling */
int resample_sample_fmt ;
int resample_channels ;
int resample_sample_rate ;
int reformat_pair ;
AVAudioConvert * reformat_ctx ;
AVFifoBuffer * fifo ; /* for compression: one audio fifo per codec */
FILE * logfile ;
# if CONFIG_AVFILTER
AVFilterContext * output_video_filter ;
AVFilterContext * input_video_filter ;
AVFilterBufferRef * picref ;
char * avfilter ;
AVFilterGraph * graph ;
# endif
int sws_flags ;
AVDictionary * opts ;
int is_past_recording_time ;
} OutputStream ;
typedef struct InputStream {
int file_index ;
AVStream * st ;
int discard ; /* true if stream data should be discarded */
int decoding_needed ; /* true if the packets must be decoded in 'raw_fifo' */
AVCodec * dec ;
int64_t start ; /* time when read started */
int64_t next_pts ; /* synthetic pts for cases where pkt.pts
is not defined */
int64_t pts ; /* current pts */
PtsCorrectionContext pts_ctx ;
double ts_scale ;
int is_start ; /* is 1 at the start and after a discontinuity */
int showed_multi_packet_warning ;
AVDictionary * opts ;
} InputStream ;
typedef struct InputFile {
AVFormatContext * ctx ;
int eof_reached ; /* true if eof reached */
int ist_index ; /* index of first stream in ist_table */
int buffer_size ; /* current total buffer size */
int64_t ts_offset ;
} InputFile ;
typedef struct OutputFile {
AVFormatContext * ctx ;
AVDictionary * opts ;
int ost_index ; /* index of the first stream in output_streams */
int64_t recording_time ; /* desired length of the resulting file in microseconds */
int64_t start_time ; /* start time in microseconds */
} OutputFile ;
static InputStream * input_streams = NULL ;
static int nb_input_streams = 0 ;
static InputFile * input_files = NULL ;
static int nb_input_files = 0 ;
static OutputStream * output_streams = NULL ;
static int nb_output_streams = 0 ;
static OutputFile * output_files = NULL ;
static int nb_output_files = 0 ;
# if CONFIG_AVFILTER
static int configure_video_filters ( InputStream * ist , OutputStream * ost )
{
AVFilterContext * last_filter , * filter ;
/** filter graph containing all filters including input & output */
AVCodecContext * codec = ost - > st - > codec ;
AVCodecContext * icodec = ist - > st - > codec ;
FFSinkContext ffsink_ctx = { . pix_fmt = codec - > pix_fmt } ;
AVRational sample_aspect_ratio ;
char args [ 255 ] ;
int ret ;
ost - > graph = avfilter_graph_alloc ( ) ;
if ( ist - > st - > sample_aspect_ratio . num ) {
sample_aspect_ratio = ist - > st - > sample_aspect_ratio ;
} else
sample_aspect_ratio = ist - > st - > codec - > sample_aspect_ratio ;
snprintf ( args , 255 , " %d:%d:%d:%d:%d:%d:%d " , ist - > st - > codec - > width ,
ist - > st - > codec - > height , ist - > st - > codec - > pix_fmt , 1 , AV_TIME_BASE ,
sample_aspect_ratio . num , sample_aspect_ratio . den ) ;
ret = avfilter_graph_create_filter ( & ost - > input_video_filter , avfilter_get_by_name ( " buffer " ) ,
" src " , args , NULL , ost - > graph ) ;
if ( ret < 0 )
return ret ;
ret = avfilter_graph_create_filter ( & ost - > output_video_filter , & ffsink ,
" out " , NULL , & ffsink_ctx , ost - > graph ) ;
if ( ret < 0 )
return ret ;
last_filter = ost - > input_video_filter ;
if ( codec - > width ! = icodec - > width | | codec - > height ! = icodec - > height ) {
snprintf ( args , 255 , " %d:%d:flags=0x%X " ,
codec - > width ,
codec - > height ,
ost - > sws_flags ) ;
if ( ( ret = avfilter_graph_create_filter ( & filter , avfilter_get_by_name ( " scale " ) ,
NULL , args , NULL , ost - > graph ) ) < 0 )
return ret ;
if ( ( ret = avfilter_link ( last_filter , 0 , filter , 0 ) ) < 0 )
return ret ;
last_filter = filter ;
}
snprintf ( args , sizeof ( args ) , " flags=0x%X " , ost - > sws_flags ) ;
ost - > graph - > scale_sws_opts = av_strdup ( args ) ;
if ( ost - > avfilter ) {
AVFilterInOut * outputs = av_malloc ( sizeof ( AVFilterInOut ) ) ;
AVFilterInOut * inputs = av_malloc ( sizeof ( AVFilterInOut ) ) ;
outputs - > name = av_strdup ( " in " ) ;
outputs - > filter_ctx = last_filter ;
outputs - > pad_idx = 0 ;
outputs - > next = NULL ;
inputs - > name = av_strdup ( " out " ) ;
inputs - > filter_ctx = ost - > output_video_filter ;
inputs - > pad_idx = 0 ;
inputs - > next = NULL ;
if ( ( ret = avfilter_graph_parse ( ost - > graph , ost - > avfilter , inputs , outputs , NULL ) ) < 0 )
return ret ;
av_freep ( & ost - > avfilter ) ;
} else {
if ( ( ret = avfilter_link ( last_filter , 0 , ost - > output_video_filter , 0 ) ) < 0 )
return ret ;
}
if ( ( ret = avfilter_graph_config ( ost - > graph , NULL ) ) < 0 )
return ret ;
codec - > width = ost - > output_video_filter - > inputs [ 0 ] - > w ;
codec - > height = ost - > output_video_filter - > inputs [ 0 ] - > h ;
codec - > sample_aspect_ratio = ost - > st - > sample_aspect_ratio =
ost - > frame_aspect_ratio ? // overriden by the -aspect cli option
av_d2q ( ost - > frame_aspect_ratio * codec - > height / codec - > width , 255 ) :
ost - > output_video_filter - > inputs [ 0 ] - > sample_aspect_ratio ;
return 0 ;
}
# endif /* CONFIG_AVFILTER */
static void term_exit ( void )
{
av_log ( NULL , AV_LOG_QUIET , " " ) ;
}
static volatile int received_sigterm = 0 ;
static volatile int received_nb_signals = 0 ;
static void
sigterm_handler ( int sig )
{
received_sigterm = sig ;
received_nb_signals + + ;
term_exit ( ) ;
}
static void term_init ( void )
{
signal ( SIGINT , sigterm_handler ) ; /* Interrupt (ANSI). */
signal ( SIGTERM , sigterm_handler ) ; /* Termination (ANSI). */
# ifdef SIGXCPU
signal ( SIGXCPU , sigterm_handler ) ;
# endif
}
static int decode_interrupt_cb ( void )
{
return received_nb_signals > 1 ;
}
static int exit_program ( int ret )
{
int i ;
/* close files */
for ( i = 0 ; i < nb_output_files ; i + + ) {
AVFormatContext * s = output_files [ i ] . ctx ;
if ( ! ( s - > oformat - > flags & AVFMT_NOFILE ) & & s - > pb )
avio_close ( s - > pb ) ;
avformat_free_context ( s ) ;
av_dict_free ( & output_files [ i ] . opts ) ;
}
for ( i = 0 ; i < nb_input_files ; i + + ) {
av_close_input_file ( input_files [ i ] . ctx ) ;
}
for ( i = 0 ; i < nb_input_streams ; i + + )
av_dict_free ( & input_streams [ i ] . opts ) ;
av_free ( intra_matrix ) ;
av_free ( inter_matrix ) ;
if ( vstats_file )
fclose ( vstats_file ) ;
av_free ( vstats_filename ) ;
av_free ( streamid_map ) ;
av_free ( meta_data_maps ) ;
av_freep ( & input_streams ) ;
av_freep ( & input_files ) ;
av_freep ( & output_streams ) ;
av_freep ( & output_files ) ;
uninit_opts ( ) ;
av_free ( audio_buf ) ;
av_free ( audio_out ) ;
allocated_audio_buf_size = allocated_audio_out_size = 0 ;
av_free ( samples ) ;
# if CONFIG_AVFILTER
avfilter_uninit ( ) ;
# endif
if ( received_sigterm ) {
fprintf ( stderr ,
" Received signal %d: terminating. \n " ,
( int ) received_sigterm ) ;
exit ( 255 ) ;
}
exit ( ret ) ; /* not all OS-es handle main() return value */
return ret ;
}
static void assert_avoptions ( AVDictionary * m )
{
AVDictionaryEntry * t ;
if ( ( t = av_dict_get ( m , " " , NULL , AV_DICT_IGNORE_SUFFIX ) ) ) {
av_log ( NULL , AV_LOG_ERROR , " Option %s not found. \n " , t - > key ) ;
exit_program ( 1 ) ;
}
}
static void assert_codec_experimental ( AVCodecContext * c , int encoder )
{
const char * codec_string = encoder ? " encoder " : " decoder " ;
AVCodec * codec ;
if ( c - > codec - > capabilities & CODEC_CAP_EXPERIMENTAL & &
c - > strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL ) {
av_log ( NULL , AV_LOG_ERROR , " %s '%s' is experimental and might produce bad "
" results. \n Add '-strict experimental' if you want to use it. \n " ,
codec_string , c - > codec - > name ) ;
codec = encoder ? avcodec_find_encoder ( c - > codec - > id ) : avcodec_find_decoder ( c - > codec - > id ) ;
if ( ! ( codec - > capabilities & CODEC_CAP_EXPERIMENTAL ) )
av_log ( NULL , AV_LOG_ERROR , " Or use the non experimental %s '%s'. \n " ,
codec_string , codec - > name ) ;
exit_program ( 1 ) ;
}
}
/* similar to ff_dynarray_add() and av_fast_realloc() */
static void * grow_array ( void * array , int elem_size , int * size , int new_size )
{
if ( new_size > = INT_MAX / elem_size ) {
fprintf ( stderr , " Array too big. \n " ) ;
exit_program ( 1 ) ;
}
if ( * size < new_size ) {
uint8_t * tmp = av_realloc ( array , new_size * elem_size ) ;
if ( ! tmp ) {
fprintf ( stderr , " Could not alloc buffer. \n " ) ;
exit_program ( 1 ) ;
}
memset ( tmp + * size * elem_size , 0 , ( new_size - * size ) * elem_size ) ;
* size = new_size ;
return tmp ;
}
return array ;
}
static void choose_sample_fmt ( AVStream * st , AVCodec * codec )
{
if ( codec & & codec - > sample_fmts ) {
const enum AVSampleFormat * p = codec - > sample_fmts ;
for ( ; * p ! = - 1 ; p + + ) {
if ( * p = = st - > codec - > sample_fmt )
break ;
}
if ( * p = = - 1 ) {
av_log ( NULL , AV_LOG_WARNING ,
" Incompatible sample format '%s' for codec '%s', auto-selecting format '%s' \n " ,
av_get_sample_fmt_name ( st - > codec - > sample_fmt ) ,
codec - > name ,
av_get_sample_fmt_name ( codec - > sample_fmts [ 0 ] ) ) ;
st - > codec - > sample_fmt = codec - > sample_fmts [ 0 ] ;
}
}
}
/**
* Update the requested input sample format based on the output sample format .
* This is currently only used to request float output from decoders which
* support multiple sample formats , one of which is AV_SAMPLE_FMT_FLT .
* Ideally this will be removed in the future when decoders do not do format
* conversion and only output in their native format .
*/
static void update_sample_fmt ( AVCodecContext * dec , AVCodec * dec_codec ,
AVCodecContext * enc )
{
/* if sample formats match or a decoder sample format has already been
requested , just return */
if ( enc - > sample_fmt = = dec - > sample_fmt | |
dec - > request_sample_fmt > AV_SAMPLE_FMT_NONE )
return ;
/* if decoder supports more than one output format */
if ( dec_codec & & dec_codec - > sample_fmts & &
dec_codec - > sample_fmts [ 0 ] ! = AV_SAMPLE_FMT_NONE & &
dec_codec - > sample_fmts [ 1 ] ! = AV_SAMPLE_FMT_NONE ) {
const enum AVSampleFormat * p ;
int min_dec = - 1 , min_inc = - 1 ;
/* find a matching sample format in the encoder */
for ( p = dec_codec - > sample_fmts ; * p ! = AV_SAMPLE_FMT_NONE ; p + + ) {
if ( * p = = enc - > sample_fmt ) {
dec - > request_sample_fmt = * p ;
return ;
} else if ( * p > enc - > sample_fmt ) {
min_inc = FFMIN ( min_inc , * p - enc - > sample_fmt ) ;
} else
min_dec = FFMIN ( min_dec , enc - > sample_fmt - * p ) ;
}
/* if none match, provide the one that matches quality closest */
dec - > request_sample_fmt = min_inc > 0 ? enc - > sample_fmt + min_inc :
enc - > sample_fmt - min_dec ;
}
}
static void choose_sample_rate ( AVStream * st , AVCodec * codec )
{
if ( codec & & codec - > supported_samplerates ) {
const int * p = codec - > supported_samplerates ;
int best = 0 ;
int best_dist = INT_MAX ;
for ( ; * p ; p + + ) {
int dist = abs ( st - > codec - > sample_rate - * p ) ;
if ( dist < best_dist ) {
best_dist = dist ;
best = * p ;
}
}
if ( best_dist ) {
av_log ( st - > codec , AV_LOG_WARNING , " Requested sampling rate unsupported using closest supported (%d) \n " , best ) ;
}
st - > codec - > sample_rate = best ;
}
}
static void choose_pixel_fmt ( AVStream * st , AVCodec * codec )
{
if ( codec & & codec - > pix_fmts ) {
const enum PixelFormat * p = codec - > pix_fmts ;
if ( st - > codec - > strict_std_compliance < = FF_COMPLIANCE_UNOFFICIAL ) {
if ( st - > codec - > codec_id = = CODEC_ID_MJPEG ) {
p = ( const enum PixelFormat [ ] ) { PIX_FMT_YUVJ420P , PIX_FMT_YUVJ422P , PIX_FMT_YUV420P , PIX_FMT_YUV422P , PIX_FMT_NONE } ;
} else if ( st - > codec - > codec_id = = CODEC_ID_LJPEG ) {
p = ( const enum PixelFormat [ ] ) { PIX_FMT_YUVJ420P , PIX_FMT_YUVJ422P , PIX_FMT_YUVJ444P , PIX_FMT_YUV420P , PIX_FMT_YUV422P , PIX_FMT_YUV444P , PIX_FMT_BGRA , PIX_FMT_NONE } ;
}
}
for ( ; * p ! = - 1 ; p + + ) {
if ( * p = = st - > codec - > pix_fmt )
break ;
}
if ( * p = = - 1 ) {
if ( st - > codec - > pix_fmt ! = PIX_FMT_NONE )
av_log ( NULL , AV_LOG_WARNING ,
" Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s' \n " ,
av_pix_fmt_descriptors [ st - > codec - > pix_fmt ] . name ,
codec - > name ,
av_pix_fmt_descriptors [ codec - > pix_fmts [ 0 ] ] . name ) ;
st - > codec - > pix_fmt = codec - > pix_fmts [ 0 ] ;
}
}
}
static double
get_sync_ipts ( const OutputStream * ost )
{
const InputStream * ist = ost - > sync_ist ;
OutputFile * of = & output_files [ ost - > file_index ] ;
return ( double ) ( ist - > pts - of - > start_time ) / AV_TIME_BASE ;
}
static void write_frame ( AVFormatContext * s , AVPacket * pkt , AVCodecContext * avctx , AVBitStreamFilterContext * bsfc ) {
int ret ;
while ( bsfc ) {
AVPacket new_pkt = * pkt ;
int a = av_bitstream_filter_filter ( bsfc , avctx , NULL ,
& new_pkt . data , & new_pkt . size ,
pkt - > data , pkt - > size ,
pkt - > flags & AV_PKT_FLAG_KEY ) ;
if ( a > 0 ) {
av_free_packet ( pkt ) ;
new_pkt . destruct = av_destruct_packet ;
} else if ( a < 0 ) {
fprintf ( stderr , " %s failed for stream %d, codec %s " ,
bsfc - > filter - > name , pkt - > stream_index ,
avctx - > codec ? avctx - > codec - > name : " copy " ) ;
print_error ( " " , a ) ;
if ( exit_on_error )
exit_program ( 1 ) ;
}
* pkt = new_pkt ;
bsfc = bsfc - > next ;
}
ret = av_interleaved_write_frame ( s , pkt ) ;
if ( ret < 0 ) {
print_error ( " av_interleaved_write_frame() " , ret ) ;
exit_program ( 1 ) ;
}
}
static void do_audio_out ( AVFormatContext * s ,
OutputStream * ost ,
InputStream * ist ,
unsigned char * buf , int size )
{
uint8_t * buftmp ;
int64_t audio_out_size , audio_buf_size ;
int64_t allocated_for_size = size ;
int size_out , frame_bytes , ret , resample_changed ;
AVCodecContext * enc = ost - > st - > codec ;
AVCodecContext * dec = ist - > st - > codec ;
int osize = av_get_bytes_per_sample ( enc - > sample_fmt ) ;
int isize = av_get_bytes_per_sample ( dec - > sample_fmt ) ;
const int coded_bps = av_get_bits_per_sample ( enc - > codec - > id ) ;
need_realloc :
audio_buf_size = ( allocated_for_size + isize * dec - > channels - 1 ) / ( isize * dec - > channels ) ;
audio_buf_size = ( audio_buf_size * enc - > sample_rate + dec - > sample_rate ) / dec - > sample_rate ;
audio_buf_size = audio_buf_size * 2 + 10000 ; //safety factors for the deprecated resampling API
audio_buf_size = FFMAX ( audio_buf_size , enc - > frame_size ) ;
audio_buf_size * = osize * enc - > channels ;
audio_out_size = FFMAX ( audio_buf_size , enc - > frame_size * osize * enc - > channels ) ;
if ( coded_bps > 8 * osize )
audio_out_size = audio_out_size * coded_bps / ( 8 * osize ) ;
audio_out_size + = FF_MIN_BUFFER_SIZE ;
if ( audio_out_size > INT_MAX | | audio_buf_size > INT_MAX ) {
fprintf ( stderr , " Buffer sizes too large \n " ) ;
exit_program ( 1 ) ;
}
av_fast_malloc ( & audio_buf , & allocated_audio_buf_size , audio_buf_size ) ;
av_fast_malloc ( & audio_out , & allocated_audio_out_size , audio_out_size ) ;
if ( ! audio_buf | | ! audio_out ) {
fprintf ( stderr , " Out of memory in do_audio_out \n " ) ;
exit_program ( 1 ) ;
}
if ( enc - > channels ! = dec - > channels | | enc - > sample_rate ! = dec - > sample_rate )
ost - > audio_resample = 1 ;
resample_changed = ost - > resample_sample_fmt ! = dec - > sample_fmt | |
ost - > resample_channels ! = dec - > channels | |
ost - > resample_sample_rate ! = dec - > sample_rate ;
if ( ( ost - > audio_resample & & ! ost - > resample ) | | resample_changed ) {
if ( resample_changed ) {
av_log ( NULL , AV_LOG_INFO , " Input stream #%d.%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d \n " ,
ist - > file_index , ist - > st - > index ,
ost - > resample_sample_rate , av_get_sample_fmt_name ( ost - > resample_sample_fmt ) , ost - > resample_channels ,
dec - > sample_rate , av_get_sample_fmt_name ( dec - > sample_fmt ) , dec - > channels ) ;
ost - > resample_sample_fmt = dec - > sample_fmt ;
ost - > resample_channels = dec - > channels ;
ost - > resample_sample_rate = dec - > sample_rate ;
if ( ost - > resample )
audio_resample_close ( ost - > resample ) ;
}
/* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
if ( audio_sync_method < = 1 & &
ost - > resample_sample_fmt = = enc - > sample_fmt & &
ost - > resample_channels = = enc - > channels & &
ost - > resample_sample_rate = = enc - > sample_rate ) {
ost - > resample = NULL ;
ost - > audio_resample = 0 ;
} else if ( ost - > audio_resample ) {
if ( dec - > sample_fmt ! = AV_SAMPLE_FMT_S16 )
fprintf ( stderr , " Warning, using s16 intermediate sample format for resampling \n " ) ;
ost - > resample = av_audio_resample_init ( enc - > channels , dec - > channels ,
enc - > sample_rate , dec - > sample_rate ,
enc - > sample_fmt , dec - > sample_fmt ,
16 , 10 , 0 , 0.8 ) ;
if ( ! ost - > resample ) {
fprintf ( stderr , " Can not resample %d channels @ %d Hz to %d channels @ %d Hz \n " ,
dec - > channels , dec - > sample_rate ,
enc - > channels , enc - > sample_rate ) ;
exit_program ( 1 ) ;
}
}
}
# define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
if ( ! ost - > audio_resample & & dec - > sample_fmt ! = enc - > sample_fmt & &
MAKE_SFMT_PAIR ( enc - > sample_fmt , dec - > sample_fmt ) ! = ost - > reformat_pair ) {
if ( ost - > reformat_ctx )
av_audio_convert_free ( ost - > reformat_ctx ) ;
ost - > reformat_ctx = av_audio_convert_alloc ( enc - > sample_fmt , 1 ,
dec - > sample_fmt , 1 , NULL , 0 ) ;
if ( ! ost - > reformat_ctx ) {
fprintf ( stderr , " Cannot convert %s sample format to %s sample format \n " ,
av_get_sample_fmt_name ( dec - > sample_fmt ) ,
av_get_sample_fmt_name ( enc - > sample_fmt ) ) ;
exit_program ( 1 ) ;
}
ost - > reformat_pair = MAKE_SFMT_PAIR ( enc - > sample_fmt , dec - > sample_fmt ) ;
}
if ( audio_sync_method ) {
double delta = get_sync_ipts ( ost ) * enc - > sample_rate - ost - > sync_opts
- av_fifo_size ( ost - > fifo ) / ( enc - > channels * 2 ) ;
double idelta = delta * dec - > sample_rate / enc - > sample_rate ;
int byte_delta = ( ( int ) idelta ) * 2 * dec - > channels ;
//FIXME resample delay
if ( fabs ( delta ) > 50 ) {
if ( ist - > is_start | | fabs ( delta ) > audio_drift_threshold * enc - > sample_rate ) {
if ( byte_delta < 0 ) {
byte_delta = FFMAX ( byte_delta , - size ) ;
size + = byte_delta ;
buf - = byte_delta ;
if ( verbose > 2 )
fprintf ( stderr , " discarding %d audio samples \n " , ( int ) - delta ) ;
if ( ! size )
return ;
ist - > is_start = 0 ;
} else {
static uint8_t * input_tmp = NULL ;
input_tmp = av_realloc ( input_tmp , byte_delta + size ) ;
if ( byte_delta > allocated_for_size - size ) {
allocated_for_size = byte_delta + ( int64_t ) size ;
goto need_realloc ;
}
ist - > is_start = 0 ;
memset ( input_tmp , 0 , byte_delta ) ;
memcpy ( input_tmp + byte_delta , buf , size ) ;
buf = input_tmp ;
size + = byte_delta ;
if ( verbose > 2 )
fprintf ( stderr , " adding %d audio samples of silence \n " , ( int ) delta ) ;
}
} else if ( audio_sync_method > 1 ) {
int comp = av_clip ( delta , - audio_sync_method , audio_sync_method ) ;
av_assert0 ( ost - > audio_resample ) ;
if ( verbose > 2 )
fprintf ( stderr , " compensating audio timestamp drift:%f compensation:%d in:%d \n " , delta , comp , enc - > sample_rate ) ;
// fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
av_resample_compensate ( * ( struct AVResampleContext * * ) ost - > resample , comp , enc - > sample_rate ) ;
}
}
} else
ost - > sync_opts = lrintf ( get_sync_ipts ( ost ) * enc - > sample_rate )
- av_fifo_size ( ost - > fifo ) / ( enc - > channels * 2 ) ; //FIXME wrong
if ( ost - > audio_resample ) {
buftmp = audio_buf ;
size_out = audio_resample ( ost - > resample ,
( short * ) buftmp , ( short * ) buf ,
size / ( dec - > channels * isize ) ) ;
size_out = size_out * enc - > channels * osize ;
} else {
buftmp = buf ;
size_out = size ;
}
if ( ! ost - > audio_resample & & dec - > sample_fmt ! = enc - > sample_fmt ) {
const void * ibuf [ 6 ] = { buftmp } ;
void * obuf [ 6 ] = { audio_buf } ;
int istride [ 6 ] = { isize } ;
int ostride [ 6 ] = { osize } ;
int len = size_out / istride [ 0 ] ;
if ( av_audio_convert ( ost - > reformat_ctx , obuf , ostride , ibuf , istride , len ) < 0 ) {
printf ( " av_audio_convert() failed \n " ) ;
if ( exit_on_error )
exit_program ( 1 ) ;
return ;
}
buftmp = audio_buf ;
size_out = len * osize ;
}
/* now encode as many frames as possible */
if ( enc - > frame_size > 1 ) {
/* output resampled raw samples */
if ( av_fifo_realloc2 ( ost - > fifo , av_fifo_size ( ost - > fifo ) + size_out ) < 0 ) {
fprintf ( stderr , " av_fifo_realloc2() failed \n " ) ;
exit_program ( 1 ) ;
}
av_fifo_generic_write ( ost - > fifo , buftmp , size_out , NULL ) ;
frame_bytes = enc - > frame_size * osize * enc - > channels ;
while ( av_fifo_size ( ost - > fifo ) > = frame_bytes ) {
AVPacket pkt ;
av_init_packet ( & pkt ) ;
av_fifo_generic_read ( ost - > fifo , audio_buf , frame_bytes , NULL ) ;
//FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
ret = avcodec_encode_audio ( enc , audio_out , audio_out_size ,
( short * ) audio_buf ) ;
if ( ret < 0 ) {
fprintf ( stderr , " Audio encoding failed \n " ) ;
exit_program ( 1 ) ;
}
audio_size + = ret ;
pkt . stream_index = ost - > index ;
pkt . data = audio_out ;
pkt . size = ret ;
if ( enc - > coded_frame & & enc - > coded_frame - > pts ! = AV_NOPTS_VALUE )
pkt . pts = av_rescale_q ( enc - > coded_frame - > pts , enc - > time_base , ost - > st - > time_base ) ;
pkt . flags | = AV_PKT_FLAG_KEY ;
write_frame ( s , & pkt , enc , ost - > bitstream_filters ) ;
ost - > sync_opts + = enc - > frame_size ;
}
} else {
AVPacket pkt ;
av_init_packet ( & pkt ) ;
ost - > sync_opts + = size_out / ( osize * enc - > channels ) ;
/* output a pcm frame */
/* determine the size of the coded buffer */
size_out / = osize ;
if ( coded_bps )
size_out = size_out * coded_bps / 8 ;
if ( size_out > audio_out_size ) {
fprintf ( stderr , " Internal error, buffer size too small \n " ) ;
exit_program ( 1 ) ;
}
//FIXME pass ost->sync_opts as AVFrame.pts in avcodec_encode_audio()
ret = avcodec_encode_audio ( enc , audio_out , size_out ,
( short * ) buftmp ) ;
if ( ret < 0 ) {
fprintf ( stderr , " Audio encoding failed \n " ) ;
exit_program ( 1 ) ;
}
audio_size + = ret ;
pkt . stream_index = ost - > index ;
pkt . data = audio_out ;
pkt . size = ret ;
if ( enc - > coded_frame & & enc - > coded_frame - > pts ! = AV_NOPTS_VALUE )
pkt . pts = av_rescale_q ( enc - > coded_frame - > pts , enc - > time_base , ost - > st - > time_base ) ;
pkt . flags | = AV_PKT_FLAG_KEY ;
write_frame ( s , & pkt , enc , ost - > bitstream_filters ) ;
}
}
static void pre_process_video_frame ( InputStream * ist , AVPicture * picture , void * * bufp )
{
AVCodecContext * dec ;
AVPicture * picture2 ;
AVPicture picture_tmp ;
uint8_t * buf = 0 ;
dec = ist - > st - > codec ;
/* deinterlace : must be done before any resize */
if ( do_deinterlace ) {
int size ;
/* create temporary picture */
size = avpicture_get_size ( dec - > pix_fmt , dec - > width , dec - > height ) ;
buf = av_malloc ( size ) ;
if ( ! buf )
return ;
picture2 = & picture_tmp ;
avpicture_fill ( picture2 , buf , dec - > pix_fmt , dec - > width , dec - > height ) ;
if ( avpicture_deinterlace ( picture2 , picture ,
dec - > pix_fmt , dec - > width , dec - > height ) < 0 ) {
/* if error, do not deinterlace */
fprintf ( stderr , " Deinterlacing failed \n " ) ;
av_free ( buf ) ;
buf = NULL ;
picture2 = picture ;
}
} else {
picture2 = picture ;
}
if ( picture ! = picture2 )
* picture = * picture2 ;
* bufp = buf ;
}
static void do_subtitle_out ( AVFormatContext * s ,
OutputStream * ost ,
InputStream * ist ,
AVSubtitle * sub ,
int64_t pts )
{
static uint8_t * subtitle_out = NULL ;
int subtitle_out_max_size = 1024 * 1024 ;
int subtitle_out_size , nb , i ;
AVCodecContext * enc ;
AVPacket pkt ;
if ( pts = = AV_NOPTS_VALUE ) {
fprintf ( stderr , " Subtitle packets must have a pts \n " ) ;
if ( exit_on_error )
exit_program ( 1 ) ;
return ;
}
enc = ost - > st - > codec ;
if ( ! subtitle_out ) {
subtitle_out = av_malloc ( subtitle_out_max_size ) ;
}
/* Note: DVB subtitle need one packet to draw them and one other
packet to clear them */
/* XXX: signal it in the codec context ? */
if ( enc - > codec_id = = CODEC_ID_DVB_SUBTITLE )
nb = 2 ;
else
nb = 1 ;
for ( i = 0 ; i < nb ; i + + ) {
sub - > pts = av_rescale_q ( pts , ist - > st - > time_base , AV_TIME_BASE_Q ) ;
// start_display_time is required to be 0
sub - > pts + = av_rescale_q ( sub - > start_display_time , ( AVRational ) { 1 , 1000 } , AV_TIME_BASE_Q ) ;
sub - > end_display_time - = sub - > start_display_time ;
sub - > start_display_time = 0 ;
subtitle_out_size = avcodec_encode_subtitle ( enc , subtitle_out ,
subtitle_out_max_size , sub ) ;
if ( subtitle_out_size < 0 ) {
fprintf ( stderr , " Subtitle encoding failed \n " ) ;
exit_program ( 1 ) ;
}
av_init_packet ( & pkt ) ;
pkt . stream_index = ost - > index ;
pkt . data = subtitle_out ;
pkt . size = subtitle_out_size ;
pkt . pts = av_rescale_q ( sub - > pts , AV_TIME_BASE_Q , ost - > st - > time_base ) ;
if ( enc - > codec_id = = CODEC_ID_DVB_SUBTITLE ) {
/* XXX: the pts correction is handled here. Maybe handling
it in the codec would be better */
if ( i = = 0 )
pkt . pts + = 90 * sub - > start_display_time ;
else
pkt . pts + = 90 * sub - > end_display_time ;
}
write_frame ( s , & pkt , ost - > st - > codec , ost - > bitstream_filters ) ;
}
}
static int bit_buffer_size = 1024 * 256 ;
static uint8_t * bit_buffer = NULL ;
static void do_video_resample ( OutputStream * ost ,
InputStream * ist ,
AVFrame * in_picture ,
AVFrame * * out_picture )
{
int resample_changed = 0 ;
AVCodecContext * dec = ist - > st - > codec ;
* out_picture = in_picture ;
resample_changed = ost - > resample_width ! = dec - > width | |
ost - > resample_height ! = dec - > height | |
ost - > resample_pix_fmt ! = dec - > pix_fmt ;
if ( resample_changed ) {
av_log ( NULL , AV_LOG_INFO ,
" Input stream #%d.%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s \n " ,
ist - > file_index , ist - > st - > index ,
ost - > resample_width , ost - > resample_height , av_get_pix_fmt_name ( ost - > resample_pix_fmt ) ,
dec - > width , dec - > height , av_get_pix_fmt_name ( dec - > pix_fmt ) ) ;
if ( ! ost - > video_resample )
ost - > video_resample = 1 ;
}
# if !CONFIG_AVFILTER
if ( ost - > video_resample ) {
* out_picture = & ost - > pict_tmp ;
if ( resample_changed ) {
/* initialize a new scaler context */
sws_freeContext ( ost - > img_resample_ctx ) ;
ost - > img_resample_ctx = sws_getContext (
ist - > st - > codec - > width ,
ist - > st - > codec - > height ,
ist - > st - > codec - > pix_fmt ,
ost - > st - > codec - > width ,
ost - > st - > codec - > height ,
ost - > st - > codec - > pix_fmt ,
ost - > sws_flags , NULL , NULL , NULL ) ;
if ( ost - > img_resample_ctx = = NULL ) {
fprintf ( stderr , " Cannot get resampling context \n " ) ;
exit_program ( 1 ) ;
}
}
sws_scale ( ost - > img_resample_ctx , in_picture - > data , in_picture - > linesize ,
0 , ost - > resample_height , ( * out_picture ) - > data , ( * out_picture ) - > linesize ) ;
}
# else
if ( resample_changed ) {
avfilter_graph_free ( & ost - > graph ) ;
if ( configure_video_filters ( ist , ost ) ) {
fprintf ( stderr , " Error reinitialising filters! \n " ) ;
exit_program ( 1 ) ;
}
}
# endif
if ( resample_changed ) {
ost - > resample_width = dec - > width ;
ost - > resample_height = dec - > height ;
ost - > resample_pix_fmt = dec - > pix_fmt ;
}
}
static void do_video_out ( AVFormatContext * s ,
OutputStream * ost ,
InputStream * ist ,
AVFrame * in_picture ,
int * frame_size , float quality )
{
int nb_frames , i , ret , format_video_sync ;
AVFrame * final_picture ;
AVCodecContext * enc , * dec ;
double sync_ipts ;
enc = ost - > st - > codec ;
dec = ist - > st - > codec ;
sync_ipts = get_sync_ipts ( ost ) / av_q2d ( enc - > time_base ) ;
/* by default, we output a single frame */
nb_frames = 1 ;
* frame_size = 0 ;
format_video_sync = video_sync_method ;
if ( format_video_sync < 0 )
format_video_sync = ( s - > oformat - > flags & AVFMT_VARIABLE_FPS ) ? 2 : 1 ;
if ( format_video_sync ) {
double vdelta = sync_ipts - ost - > sync_opts ;
//FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
if ( vdelta < - 1.1 )
nb_frames = 0 ;
else if ( format_video_sync = = 2 ) {
if ( vdelta < = - 0.6 ) {
nb_frames = 0 ;
} else if ( vdelta > 0.6 )
ost - > sync_opts = lrintf ( sync_ipts ) ;
} else if ( vdelta > 1.1 )
nb_frames = lrintf ( vdelta ) ;
//fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
if ( nb_frames = = 0 ) {
+ + nb_frames_drop ;
if ( verbose > 2 )
fprintf ( stderr , " *** drop! \n " ) ;
} else if ( nb_frames > 1 ) {
nb_frames_dup + = nb_frames - 1 ;
if ( verbose > 2 )
fprintf ( stderr , " *** %d dup! \n " , nb_frames - 1 ) ;
}
} else
ost - > sync_opts = lrintf ( sync_ipts ) ;
nb_frames = FFMIN ( nb_frames , max_frames [ AVMEDIA_TYPE_VIDEO ] - ost - > frame_number ) ;
if ( nb_frames < = 0 )
return ;
do_video_resample ( ost , ist , in_picture , & final_picture ) ;
/* duplicates frame if needed */
for ( i = 0 ; i < nb_frames ; i + + ) {
AVPacket pkt ;
av_init_packet ( & pkt ) ;
pkt . stream_index = ost - > index ;
if ( s - > oformat - > flags & AVFMT_RAWPICTURE ) {
/* raw pictures are written as AVPicture structure to
avoid any copies . We support temorarily the older
method . */
AVFrame * old_frame = enc - > coded_frame ;
enc - > coded_frame = dec - > coded_frame ; //FIXME/XXX remove this hack
pkt . data = ( uint8_t * ) final_picture ;
pkt . size = sizeof ( AVPicture ) ;
pkt . pts = av_rescale_q ( ost - > sync_opts , enc - > time_base , ost - > st - > time_base ) ;
pkt . flags | = AV_PKT_FLAG_KEY ;
write_frame ( s , & pkt , ost - > st - > codec , ost - > bitstream_filters ) ;
enc - > coded_frame = old_frame ;
} else {
AVFrame big_picture ;
big_picture = * final_picture ;
/* better than nothing: use input picture interlaced
settings */
big_picture . interlaced_frame = in_picture - > interlaced_frame ;
if ( ost - > st - > codec - > flags & ( CODEC_FLAG_INTERLACED_DCT | CODEC_FLAG_INTERLACED_ME ) ) {
if ( top_field_first = = - 1 )
big_picture . top_field_first = in_picture - > top_field_first ;
else
big_picture . top_field_first = top_field_first ;
}
/* handles same_quant here. This is not correct because it may
not be a global option */
big_picture . quality = quality ;
if ( ! me_threshold )
big_picture . pict_type = 0 ;
// big_picture.pts = AV_NOPTS_VALUE;
big_picture . pts = ost - > sync_opts ;
// big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
//av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
if ( ost - > forced_kf_index < ost - > forced_kf_count & &
big_picture . pts > = ost - > forced_kf_pts [ ost - > forced_kf_index ] ) {
big_picture . pict_type = AV_PICTURE_TYPE_I ;
ost - > forced_kf_index + + ;
}
ret = avcodec_encode_video ( enc ,
bit_buffer , bit_buffer_size ,
& big_picture ) ;
if ( ret < 0 ) {
fprintf ( stderr , " Video encoding failed \n " ) ;
exit_program ( 1 ) ;
}
if ( ret > 0 ) {
pkt . data = bit_buffer ;
pkt . size = ret ;
if ( enc - > coded_frame - > pts ! = AV_NOPTS_VALUE )
pkt . pts = av_rescale_q ( enc - > coded_frame - > pts , enc - > time_base , ost - > st - > time_base ) ;
/*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
pkt . pts ! = AV_NOPTS_VALUE ? av_rescale ( pkt . pts , enc - > time_base . den , AV_TIME_BASE * ( int64_t ) enc - > time_base . num ) : - 1 ,
pkt . dts ! = AV_NOPTS_VALUE ? av_rescale ( pkt . dts , enc - > time_base . den , AV_TIME_BASE * ( int64_t ) enc - > time_base . num ) : - 1 ) ; */
if ( enc - > coded_frame - > key_frame )
pkt . flags | = AV_PKT_FLAG_KEY ;
write_frame ( s , & pkt , ost - > st - > codec , ost - > bitstream_filters ) ;
* frame_size = ret ;
video_size + = ret ;
//fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
// enc->frame_number-1, ret, enc->pict_type);
/* if two pass, output log */
if ( ost - > logfile & & enc - > stats_out ) {
fprintf ( ost - > logfile , " %s " , enc - > stats_out ) ;
}
}
}
ost - > sync_opts + + ;
ost - > frame_number + + ;
}
}
static double psnr ( double d ) {
return - 10.0 * log ( d ) / log ( 10.0 ) ;
}
static void do_video_stats ( AVFormatContext * os , OutputStream * ost ,
int frame_size )
{
AVCodecContext * enc ;
int frame_number ;
double ti1 , bitrate , avg_bitrate ;
/* this is executed just the first time do_video_stats is called */
if ( ! vstats_file ) {
vstats_file = fopen ( vstats_filename , " w " ) ;
if ( ! vstats_file ) {
perror ( " fopen " ) ;
exit_program ( 1 ) ;
}
}
enc = ost - > st - > codec ;
if ( enc - > codec_type = = AVMEDIA_TYPE_VIDEO ) {
frame_number = ost - > frame_number ;
fprintf ( vstats_file , " frame= %5d q= %2.1f " , frame_number , enc - > coded_frame - > quality / ( float ) FF_QP2LAMBDA ) ;
if ( enc - > flags & CODEC_FLAG_PSNR )
fprintf ( vstats_file , " PSNR= %6.2f " , psnr ( enc - > coded_frame - > error [ 0 ] / ( enc - > width * enc - > height * 255.0 * 255.0 ) ) ) ;
fprintf ( vstats_file , " f_size= %6d " , frame_size ) ;
/* compute pts value */
ti1 = ost - > sync_opts * av_q2d ( enc - > time_base ) ;
if ( ti1 < 0.01 )
ti1 = 0.01 ;
bitrate = ( frame_size * 8 ) / av_q2d ( enc - > time_base ) / 1000.0 ;
avg_bitrate = ( double ) ( video_size * 8 ) / ti1 / 1000.0 ;
fprintf ( vstats_file , " s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s " ,
( double ) video_size / 1024 , ti1 , bitrate , avg_bitrate ) ;
fprintf ( vstats_file , " type= %c \n " , av_get_picture_type_char ( enc - > coded_frame - > pict_type ) ) ;
}
}
static void print_report ( OutputFile * output_files ,
OutputStream * ost_table , int nb_ostreams ,
int is_last_report )
{
char buf [ 1024 ] ;
OutputStream * ost ;
AVFormatContext * oc ;
int64_t total_size ;
AVCodecContext * enc ;
int frame_number , vid , i ;
double bitrate , ti1 , pts ;
static int64_t last_time = - 1 ;
static int qp_histogram [ 52 ] ;
if ( ! is_last_report ) {
int64_t cur_time ;
/* display the report every 0.5 seconds */
cur_time = av_gettime ( ) ;
if ( last_time = = - 1 ) {
last_time = cur_time ;
return ;
}
if ( ( cur_time - last_time ) < 500000 )
return ;
last_time = cur_time ;
}
oc = output_files [ 0 ] . ctx ;
total_size = avio_size ( oc - > pb ) ;
if ( total_size < 0 ) // FIXME improve avio_size() so it works with non seekable output too
total_size = avio_tell ( oc - > pb ) ;
buf [ 0 ] = ' \0 ' ;
ti1 = 1e10 ;
vid = 0 ;
for ( i = 0 ; i < nb_ostreams ; i + + ) {
float q = - 1 ;
ost = & ost_table [ i ] ;
enc = ost - > st - > codec ;
if ( ! ost - > st - > stream_copy & & enc - > coded_frame )
q = enc - > coded_frame - > quality / ( float ) FF_QP2LAMBDA ;
if ( vid & & enc - > codec_type = = AVMEDIA_TYPE_VIDEO ) {
snprintf ( buf + strlen ( buf ) , sizeof ( buf ) - strlen ( buf ) , " q=%2.1f " , q ) ;
}
if ( ! vid & & enc - > codec_type = = AVMEDIA_TYPE_VIDEO ) {
float t = ( av_gettime ( ) - timer_start ) / 1000000.0 ;
frame_number = ost - > frame_number ;
snprintf ( buf + strlen ( buf ) , sizeof ( buf ) - strlen ( buf ) , " frame=%5d fps=%3d q=%3.1f " ,
frame_number , ( t > 1 ) ? ( int ) ( frame_number / t + 0.5 ) : 0 , q ) ;
if ( is_last_report )
snprintf ( buf + strlen ( buf ) , sizeof ( buf ) - strlen ( buf ) , " L " ) ;
if ( qp_hist ) {
int j ;
int qp = lrintf ( q ) ;
if ( qp > = 0 & & qp < FF_ARRAY_ELEMS ( qp_histogram ) )
qp_histogram [ qp ] + + ;
for ( j = 0 ; j < 32 ; j + + )
snprintf ( buf + strlen ( buf ) , sizeof ( buf ) - strlen ( buf ) , " %X " , ( int ) lrintf ( log ( qp_histogram [ j ] + 1 ) / log ( 2 ) ) ) ;
}
if ( enc - > flags & CODEC_FLAG_PSNR ) {
int j ;
double error , error_sum = 0 ;
double scale , scale_sum = 0 ;
char type [ 3 ] = { ' Y ' , ' U ' , ' V ' } ;
snprintf ( buf + strlen ( buf ) , sizeof ( buf ) - strlen ( buf ) , " PSNR= " ) ;
for ( j = 0 ; j < 3 ; j + + ) {
if ( is_last_report ) {
error = enc - > error [ j ] ;
scale = enc - > width * enc - > height * 255.0 * 255.0 * frame_number ;
} else {
error = enc - > coded_frame - > error [ j ] ;
scale = enc - > width * enc - > height * 255.0 * 255.0 ;
}
if ( j ) scale / = 4 ;
error_sum + = error ;
scale_sum + = scale ;
snprintf ( buf + strlen ( buf ) , sizeof ( buf ) - strlen ( buf ) , " %c:%2.2f " , type [ j ] , psnr ( error / scale ) ) ;
}
snprintf ( buf + strlen ( buf ) , sizeof ( buf ) - strlen ( buf ) , " *:%2.2f " , psnr ( error_sum / scale_sum ) ) ;
}
vid = 1 ;
}
/* compute min output value */
pts = ( double ) ost - > st - > pts . val * av_q2d ( ost - > st - > time_base ) ;
if ( ( pts < ti1 ) & & ( pts > 0 ) )
ti1 = pts ;
}
if ( ti1 < 0.01 )
ti1 = 0.01 ;
if ( verbose > 0 | | is_last_report ) {
bitrate = ( double ) ( total_size * 8 ) / ti1 / 1000.0 ;
snprintf ( buf + strlen ( buf ) , sizeof ( buf ) - strlen ( buf ) ,
" size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s " ,
( double ) total_size / 1024 , ti1 , bitrate ) ;
if ( nb_frames_dup | | nb_frames_drop )
snprintf ( buf + strlen ( buf ) , sizeof ( buf ) - strlen ( buf ) , " dup=%d drop=%d " ,
nb_frames_dup , nb_frames_drop ) ;
if ( verbose > = 0 )
fprintf ( stderr , " %s \r " , buf ) ;
fflush ( stderr ) ;
}
if ( is_last_report & & verbose > = 0 ) {
int64_t raw = audio_size + video_size + extra_size ;
fprintf ( stderr , " \n " ) ;
fprintf ( stderr , " video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%% \n " ,
video_size / 1024.0 ,
audio_size / 1024.0 ,
extra_size / 1024.0 ,
100.0 * ( total_size - raw ) / raw
) ;
}
}
static void generate_silence ( uint8_t * buf , enum AVSampleFormat sample_fmt , size_t size )
{
int fill_char = 0x00 ;
if ( sample_fmt = = AV_SAMPLE_FMT_U8 )
fill_char = 0x80 ;
memset ( buf , fill_char , size ) ;
}
/* pkt = NULL means EOF (needed to flush decoder buffers) */
static int output_packet ( InputStream * ist , int ist_index ,
OutputStream * ost_table , int nb_ostreams ,
const AVPacket * pkt )
{
AVFormatContext * os ;
OutputStream * ost ;
int ret , i ;
int got_output ;
AVFrame picture ;
void * buffer_to_free = NULL ;
static unsigned int samples_size = 0 ;
AVSubtitle subtitle , * subtitle_to_free ;
int64_t pkt_pts = AV_NOPTS_VALUE ;
# if CONFIG_AVFILTER
int frame_available ;
# endif
float quality ;
AVPacket avpkt ;
int bps = av_get_bytes_per_sample ( ist - > st - > codec - > sample_fmt ) ;
if ( ist - > next_pts = = AV_NOPTS_VALUE )
ist - > next_pts = ist - > pts ;
if ( pkt = = NULL ) {
/* EOF handling */
av_init_packet ( & avpkt ) ;
avpkt . data = NULL ;
avpkt . size = 0 ;
goto handle_eof ;
} else {
avpkt = * pkt ;
}
if ( pkt - > dts ! = AV_NOPTS_VALUE )
ist - > next_pts = ist - > pts = av_rescale_q ( pkt - > dts , ist - > st - > time_base , AV_TIME_BASE_Q ) ;
if ( pkt - > pts ! = AV_NOPTS_VALUE )
pkt_pts = av_rescale_q ( pkt - > pts , ist - > st - > time_base , AV_TIME_BASE_Q ) ;
//while we have more to decode or while the decoder did output something on EOF
while ( avpkt . size > 0 | | ( ! pkt & & got_output ) ) {
uint8_t * data_buf , * decoded_data_buf ;
int data_size , decoded_data_size ;
handle_eof :
ist - > pts = ist - > next_pts ;
if ( avpkt . size & & avpkt . size ! = pkt - > size & &
( ( ! ist - > showed_multi_packet_warning & & verbose > 0 ) | | verbose > 1 ) ) {
fprintf ( stderr , " Multiple frames in a packet from stream %d \n " , pkt - > stream_index ) ;
ist - > showed_multi_packet_warning = 1 ;
}
/* decode the packet if needed */
decoded_data_buf = NULL ; /* fail safe */
decoded_data_size = 0 ;
data_buf = avpkt . data ;
data_size = avpkt . size ;
subtitle_to_free = NULL ;
if ( ist - > decoding_needed ) {
switch ( ist - > st - > codec - > codec_type ) {
case AVMEDIA_TYPE_AUDIO : {
if ( pkt & & samples_size < FFMAX ( pkt - > size * sizeof ( * samples ) , AVCODEC_MAX_AUDIO_FRAME_SIZE ) ) {
samples_size = FFMAX ( pkt - > size * sizeof ( * samples ) , AVCODEC_MAX_AUDIO_FRAME_SIZE ) ;
av_free ( samples ) ;
samples = av_malloc ( samples_size ) ;
}
decoded_data_size = samples_size ;
/* XXX: could avoid copy if PCM 16 bits with same
endianness as CPU */
ret = avcodec_decode_audio3 ( ist - > st - > codec , samples , & decoded_data_size ,
& avpkt ) ;
if ( ret < 0 )
return ret ;
avpkt . data + = ret ;
avpkt . size - = ret ;
data_size = ret ;
got_output = decoded_data_size > 0 ;
/* Some bug in mpeg audio decoder gives */
/* decoded_data_size < 0, it seems they are overflows */
if ( ! got_output ) {
/* no audio frame */
continue ;
}
decoded_data_buf = ( uint8_t * ) samples ;
ist - > next_pts + = ( ( int64_t ) AV_TIME_BASE / bps * decoded_data_size ) /
( ist - > st - > codec - > sample_rate * ist - > st - > codec - > channels ) ;
break ; }
case AVMEDIA_TYPE_VIDEO :
decoded_data_size = ( ist - > st - > codec - > width * ist - > st - > codec - > height * 3 ) / 2 ;
/* XXX: allocate picture correctly */
avcodec_get_frame_defaults ( & picture ) ;
avpkt . pts = pkt_pts ;
avpkt . dts = ist - > pts ;
pkt_pts = AV_NOPTS_VALUE ;
ret = avcodec_decode_video2 ( ist - > st - > codec ,
& picture , & got_output , & avpkt ) ;
quality = same_quant ? picture . quality : 0 ;
if ( ret < 0 )
return ret ;
if ( ! got_output ) {
/* no picture yet */
goto discard_packet ;
}
ist - > next_pts = ist - > pts = guess_correct_pts ( & ist - > pts_ctx , picture . pkt_pts , picture . pkt_dts ) ;
if ( ist - > st - > codec - > time_base . num ! = 0 ) {
int ticks = ist - > st - > parser ? ist - > st - > parser - > repeat_pict + 1 : ist - > st - > codec - > ticks_per_frame ;
ist - > next_pts + = ( ( int64_t ) AV_TIME_BASE *
ist - > st - > codec - > time_base . num * ticks ) /
ist - > st - > codec - > time_base . den ;
}
avpkt . size = 0 ;
buffer_to_free = NULL ;
pre_process_video_frame ( ist , ( AVPicture * ) & picture , & buffer_to_free ) ;
break ;
case AVMEDIA_TYPE_SUBTITLE :
ret = avcodec_decode_subtitle2 ( ist - > st - > codec ,
& subtitle , & got_output , & avpkt ) ;
if ( ret < 0 )
return ret ;
if ( ! got_output ) {
goto discard_packet ;
}
subtitle_to_free = & subtitle ;
avpkt . size = 0 ;
break ;
default :
return - 1 ;
}
} else {
switch ( ist - > st - > codec - > codec_type ) {
case AVMEDIA_TYPE_AUDIO :
ist - > next_pts + = ( ( int64_t ) AV_TIME_BASE * ist - > st - > codec - > frame_size ) /
ist - > st - > codec - > sample_rate ;
break ;
case AVMEDIA_TYPE_VIDEO :
if ( ist - > st - > codec - > time_base . num ! = 0 ) {
int ticks = ist - > st - > parser ? ist - > st - > parser - > repeat_pict + 1 : ist - > st - > codec - > ticks_per_frame ;
ist - > next_pts + = ( ( int64_t ) AV_TIME_BASE *
ist - > st - > codec - > time_base . num * ticks ) /
ist - > st - > codec - > time_base . den ;
}
break ;
}
ret = avpkt . size ;
avpkt . size = 0 ;
}
// preprocess audio (volume)
if ( ist - > st - > codec - > codec_type = = AVMEDIA_TYPE_AUDIO ) {
if ( audio_volume ! = 256 ) {
short * volp ;
volp = samples ;
for ( i = 0 ; i < ( decoded_data_size / sizeof ( short ) ) ; i + + ) {
int v = ( ( * volp ) * audio_volume + 128 ) > > 8 ;
if ( v < - 32768 ) v = - 32768 ;
if ( v > 32767 ) v = 32767 ;
* volp + + = v ;
}
}
}
/* frame rate emulation */
if ( rate_emu ) {
int64_t pts = av_rescale ( ist - > pts , 1000000 , AV_TIME_BASE ) ;
int64_t now = av_gettime ( ) - ist - > start ;
if ( pts > now )
usleep ( pts - now ) ;
}
/* if output time reached then transcode raw format,
encode packets and output them */
for ( i = 0 ; i < nb_ostreams ; i + + ) {
OutputFile * of = & output_files [ ost_table [ i ] . file_index ] ;
int frame_size ;
ost = & ost_table [ i ] ;
if ( ost - > source_index ! = ist_index )
continue ;
if ( of - > start_time & & ist - > pts < of - > start_time )
continue ;
if ( of - > recording_time ! = INT64_MAX & &
av_compare_ts ( ist - > pts , AV_TIME_BASE_Q , of - > recording_time + of - > start_time ,
( AVRational ) { 1 , 1000000 } ) > = 0 ) {
ost - > is_past_recording_time = 1 ;
continue ;
}
# if CONFIG_AVFILTER
if ( ist - > st - > codec - > codec_type = = AVMEDIA_TYPE_VIDEO & &
ost - > input_video_filter ) {
AVRational sar ;
if ( ist - > st - > sample_aspect_ratio . num )
sar = ist - > st - > sample_aspect_ratio ;
else
sar = ist - > st - > codec - > sample_aspect_ratio ;
av_vsrc_buffer_add_frame ( ost - > input_video_filter , & picture , ist - > pts , sar ) ;
}
frame_available = ist - > st - > codec - > codec_type ! = AVMEDIA_TYPE_VIDEO | |
! ost - > output_video_filter | | avfilter_poll_frame ( ost - > output_video_filter - > inputs [ 0 ] ) ;
while ( frame_available ) {
AVRational ist_pts_tb ;
if ( ist - > st - > codec - > codec_type = = AVMEDIA_TYPE_VIDEO & & ost - > output_video_filter )
get_filtered_video_frame ( ost - > output_video_filter , & picture , & ost - > picref , & ist_pts_tb ) ;
if ( ost - > picref )
ist - > pts = av_rescale_q ( ost - > picref - > pts , ist_pts_tb , AV_TIME_BASE_Q ) ;
# endif
os = output_files [ ost - > file_index ] . ctx ;
/* set the input output pts pairs */
//ost->sync_ipts = (double)(ist->pts + input_files[ist->file_index].ts_offset - start_time)/ AV_TIME_BASE;
if ( ost - > encoding_needed ) {
av_assert0 ( ist - > decoding_needed ) ;
switch ( ost - > st - > codec - > codec_type ) {
case AVMEDIA_TYPE_AUDIO :
do_audio_out ( os , ost , ist , decoded_data_buf , decoded_data_size ) ;
break ;
case AVMEDIA_TYPE_VIDEO :
# if CONFIG_AVFILTER
if ( ost - > picref - > video & & ! ost - > frame_aspect_ratio )
ost - > st - > codec - > sample_aspect_ratio = ost - > picref - > video - > pixel_aspect ;
# endif
do_video_out ( os , ost , ist , & picture , & frame_size ,
same_quant ? quality : ost - > st - > codec - > global_quality ) ;
if ( vstats_filename & & frame_size )
do_video_stats ( os , ost , frame_size ) ;
break ;
case AVMEDIA_TYPE_SUBTITLE :
do_subtitle_out ( os , ost , ist , & subtitle ,
pkt - > pts ) ;
break ;
default :
abort ( ) ;
}
} else {
AVFrame avframe ; //FIXME/XXX remove this
AVPacket opkt ;
int64_t ost_tb_start_time = av_rescale_q ( of - > start_time , AV_TIME_BASE_Q , ost - > st - > time_base ) ;
av_init_packet ( & opkt ) ;
if ( ( ! ost - > frame_number & & ! ( pkt - > flags & AV_PKT_FLAG_KEY ) ) & & ! copy_initial_nonkeyframes )
# if !CONFIG_AVFILTER
continue ;
# else
goto cont ;
# endif
/* no reencoding needed : output the packet directly */
/* force the input stream PTS */
avcodec_get_frame_defaults ( & avframe ) ;
ost - > st - > codec - > coded_frame = & avframe ;
avframe . key_frame = pkt - > flags & AV_PKT_FLAG_KEY ;
if ( ost - > st - > codec - > codec_type = = AVMEDIA_TYPE_AUDIO )
audio_size + = data_size ;
else if ( ost - > st - > codec - > codec_type = = AVMEDIA_TYPE_VIDEO ) {
video_size + = data_size ;
ost - > sync_opts + + ;
}
opkt . stream_index = ost - > index ;
if ( pkt - > pts ! = AV_NOPTS_VALUE )
opkt . pts = av_rescale_q ( pkt - > pts , ist - > st - > time_base , ost - > st - > time_base ) - ost_tb_start_time ;
else
opkt . pts = AV_NOPTS_VALUE ;
if ( pkt - > dts = = AV_NOPTS_VALUE )
opkt . dts = av_rescale_q ( ist - > pts , AV_TIME_BASE_Q , ost - > st - > time_base ) ;
else
opkt . dts = av_rescale_q ( pkt - > dts , ist - > st - > time_base , ost - > st - > time_base ) ;
opkt . dts - = ost_tb_start_time ;
opkt . duration = av_rescale_q ( pkt - > duration , ist - > st - > time_base , ost - > st - > time_base ) ;
opkt . flags = pkt - > flags ;
//FIXME remove the following 2 lines they shall be replaced by the bitstream filters
if ( ost - > st - > codec - > codec_id ! = CODEC_ID_H264
& & ost - > st - > codec - > codec_id ! = CODEC_ID_MPEG1VIDEO
& & ost - > st - > codec - > codec_id ! = CODEC_ID_MPEG2VIDEO
) {
if ( av_parser_change ( ist - > st - > parser , ost - > st - > codec , & opkt . data , & opkt . size , data_buf , data_size , pkt - > flags & AV_PKT_FLAG_KEY ) )
opkt . destruct = av_destruct_packet ;
} else {
opkt . data = data_buf ;
opkt . size = data_size ;
}
write_frame ( os , & opkt , ost - > st - > codec , ost - > bitstream_filters ) ;
ost - > st - > codec - > frame_number + + ;
ost - > frame_number + + ;
av_free_packet ( & opkt ) ;
}
# if CONFIG_AVFILTER
cont :
frame_available = ( ist - > st - > codec - > codec_type = = AVMEDIA_TYPE_VIDEO ) & &
ost - > output_video_filter & & avfilter_poll_frame ( ost - > output_video_filter - > inputs [ 0 ] ) ;
if ( ost - > picref )
avfilter_unref_buffer ( ost - > picref ) ;
}
# endif
}
av_free ( buffer_to_free ) ;
/* XXX: allocate the subtitles in the codec ? */
if ( subtitle_to_free ) {
avsubtitle_free ( subtitle_to_free ) ;
subtitle_to_free = NULL ;
}
}
discard_packet :
if ( pkt = = NULL ) {
/* EOF handling */
for ( i = 0 ; i < nb_ostreams ; i + + ) {
ost = & ost_table [ i ] ;
if ( ost - > source_index = = ist_index ) {
AVCodecContext * enc = ost - > st - > codec ;
os = output_files [ ost - > file_index ] . ctx ;
if ( ost - > st - > codec - > codec_type = = AVMEDIA_TYPE_AUDIO & & enc - > frame_size < = 1 )
continue ;
if ( ost - > st - > codec - > codec_type = = AVMEDIA_TYPE_VIDEO & & ( os - > oformat - > flags & AVFMT_RAWPICTURE ) )
continue ;
if ( ost - > encoding_needed ) {
for ( ; ; ) {
AVPacket pkt ;
int fifo_bytes ;
av_init_packet ( & pkt ) ;
pkt . stream_index = ost - > index ;
switch ( ost - > st - > codec - > codec_type ) {
case AVMEDIA_TYPE_AUDIO :
fifo_bytes = av_fifo_size ( ost - > fifo ) ;
ret = 0 ;
/* encode any samples remaining in fifo */
if ( fifo_bytes > 0 ) {
int osize = av_get_bytes_per_sample ( enc - > sample_fmt ) ;
int fs_tmp = enc - > frame_size ;
av_fifo_generic_read ( ost - > fifo , audio_buf , fifo_bytes , NULL ) ;
if ( enc - > codec - > capabilities & CODEC_CAP_SMALL_LAST_FRAME ) {
enc - > frame_size = fifo_bytes / ( osize * enc - > channels ) ;
} else { /* pad */
int frame_bytes = enc - > frame_size * osize * enc - > channels ;
if ( allocated_audio_buf_size < frame_bytes )
exit_program ( 1 ) ;
generate_silence ( audio_buf + fifo_bytes , enc - > sample_fmt , frame_bytes - fifo_bytes ) ;
}
ret = avcodec_encode_audio ( enc , bit_buffer , bit_buffer_size , ( short * ) audio_buf ) ;
pkt . duration = av_rescale ( ( int64_t ) enc - > frame_size * ost - > st - > time_base . den ,
ost - > st - > time_base . num , enc - > sample_rate ) ;
enc - > frame_size = fs_tmp ;
}
if ( ret < = 0 ) {
ret = avcodec_encode_audio ( enc , bit_buffer , bit_buffer_size , NULL ) ;
}
if ( ret < 0 ) {
fprintf ( stderr , " Audio encoding failed \n " ) ;
exit_program ( 1 ) ;
}
audio_size + = ret ;
pkt . flags | = AV_PKT_FLAG_KEY ;
break ;
case AVMEDIA_TYPE_VIDEO :
ret = avcodec_encode_video ( enc , bit_buffer , bit_buffer_size , NULL ) ;
if ( ret < 0 ) {
fprintf ( stderr , " Video encoding failed \n " ) ;
exit_program ( 1 ) ;
}
video_size + = ret ;
if ( enc - > coded_frame & & enc - > coded_frame - > key_frame )
pkt . flags | = AV_PKT_FLAG_KEY ;
if ( ost - > logfile & & enc - > stats_out ) {
fprintf ( ost - > logfile , " %s " , enc - > stats_out ) ;
}
break ;
default :
ret = - 1 ;
}
if ( ret < = 0 )
break ;
pkt . data = bit_buffer ;
pkt . size = ret ;
if ( enc - > coded_frame & & enc - > coded_frame - > pts ! = AV_NOPTS_VALUE )
pkt . pts = av_rescale_q ( enc - > coded_frame - > pts , enc - > time_base , ost - > st - > time_base ) ;
write_frame ( os , & pkt , ost - > st - > codec , ost - > bitstream_filters ) ;
}
}
}
}
}
return 0 ;
}
static void print_sdp ( OutputFile * output_files , int n )
{
char sdp [ 2048 ] ;
int i ;
AVFormatContext * * avc = av_malloc ( sizeof ( * avc ) * n ) ;
if ( ! avc )
exit_program ( 1 ) ;
for ( i = 0 ; i < n ; i + + )
avc [ i ] = output_files [ i ] . ctx ;
av_sdp_create ( avc , n , sdp , sizeof ( sdp ) ) ;
printf ( " SDP: \n %s \n " , sdp ) ;
fflush ( stdout ) ;
av_freep ( & avc ) ;
}
/*
* The following code is the main loop of the file converter
*/
static int transcode ( OutputFile * output_files ,
int nb_output_files ,
InputFile * input_files ,
int nb_input_files )
{
int ret = 0 , i , j ;
AVFormatContext * is , * os ;
AVCodecContext * codec , * icodec ;
OutputStream * ost ;
InputStream * ist ;
char error [ 1024 ] ;
int want_sdp = 1 ;
uint8_t * no_packet ;
int no_packet_count = 0 ;
if ( ! ( no_packet = av_mallocz ( nb_input_files ) ) )
exit_program ( 1 ) ;
if ( rate_emu )
for ( i = 0 ; i < nb_input_streams ; i + + )
input_streams [ i ] . start = av_gettime ( ) ;
/* output stream init */
for ( i = 0 ; i < nb_output_files ; i + + ) {
os = output_files [ i ] . ctx ;
if ( ! os - > nb_streams & & ! ( os - > oformat - > flags & AVFMT_NOSTREAMS ) ) {
av_dump_format ( os , i , os - > filename , 1 ) ;
fprintf ( stderr , " Output file #%d does not contain any stream \n " , i ) ;
ret = AVERROR ( EINVAL ) ;
goto fail ;
}
}
/* for each output stream, we compute the right encoding parameters */
for ( i = 0 ; i < nb_output_streams ; i + + ) {
ost = & output_streams [ i ] ;
os = output_files [ ost - > file_index ] . ctx ;
ist = & input_streams [ ost - > source_index ] ;
codec = ost - > st - > codec ;
icodec = ist - > st - > codec ;
ost - > st - > disposition = ist - > st - > disposition ;
codec - > bits_per_raw_sample = icodec - > bits_per_raw_sample ;
codec - > chroma_sample_location = icodec - > chroma_sample_location ;
if ( ost - > st - > stream_copy ) {
uint64_t extra_size = ( uint64_t ) icodec - > extradata_size + FF_INPUT_BUFFER_PADDING_SIZE ;
if ( extra_size > INT_MAX )
goto fail ;
/* if stream_copy is selected, no need to decode or encode */
codec - > codec_id = icodec - > codec_id ;
codec - > codec_type = icodec - > codec_type ;
if ( ! codec - > codec_tag ) {
if ( ! os - > oformat - > codec_tag
| | av_codec_get_id ( os - > oformat - > codec_tag , icodec - > codec_tag ) = = codec - > codec_id
| | av_codec_get_tag ( os - > oformat - > codec_tag , icodec - > codec_id ) < = 0 )
codec - > codec_tag = icodec - > codec_tag ;
}
codec - > bit_rate = icodec - > bit_rate ;
codec - > rc_max_rate = icodec - > rc_max_rate ;
codec - > rc_buffer_size = icodec - > rc_buffer_size ;
codec - > extradata = av_mallocz ( extra_size ) ;
if ( ! codec - > extradata )
goto fail ;
memcpy ( codec - > extradata , icodec - > extradata , icodec - > extradata_size ) ;
codec - > extradata_size = icodec - > extradata_size ;
if ( ! copy_tb & & av_q2d ( icodec - > time_base ) * icodec - > ticks_per_frame > av_q2d ( ist - > st - > time_base ) & & av_q2d ( ist - > st - > time_base ) < 1.0 / 500 ) {
codec - > time_base = icodec - > time_base ;
codec - > time_base . num * = icodec - > ticks_per_frame ;
av_reduce ( & codec - > time_base . num , & codec - > time_base . den ,
codec - > time_base . num , codec - > time_base . den , INT_MAX ) ;
} else
codec - > time_base = ist - > st - > time_base ;
switch ( codec - > codec_type ) {
case AVMEDIA_TYPE_AUDIO :
if ( audio_volume ! = 256 ) {
fprintf ( stderr , " -acodec copy and -vol are incompatible (frames are not decoded) \n " ) ;
exit_program ( 1 ) ;
}
codec - > channel_layout = icodec - > channel_layout ;
codec - > sample_rate = icodec - > sample_rate ;
codec - > channels = icodec - > channels ;
codec - > frame_size = icodec - > frame_size ;
codec - > audio_service_type = icodec - > audio_service_type ;
codec - > block_align = icodec - > block_align ;
if ( codec - > block_align = = 1 & & codec - > codec_id = = CODEC_ID_MP3 )
codec - > block_align = 0 ;
if ( codec - > codec_id = = CODEC_ID_AC3 )
codec - > block_align = 0 ;
break ;
case AVMEDIA_TYPE_VIDEO :
codec - > pix_fmt = icodec - > pix_fmt ;
codec - > width = icodec - > width ;
codec - > height = icodec - > height ;
codec - > has_b_frames = icodec - > has_b_frames ;
if ( ! codec - > sample_aspect_ratio . num ) {
codec - > sample_aspect_ratio =
ost - > st - > sample_aspect_ratio =
ist - > st - > sample_aspect_ratio . num ? ist - > st - > sample_aspect_ratio :
ist - > st - > codec - > sample_aspect_ratio . num ?
ist - > st - > codec - > sample_aspect_ratio : ( AVRational ) { 0 , 1 } ;
}
break ;
case AVMEDIA_TYPE_SUBTITLE :
codec - > width = icodec - > width ;
codec - > height = icodec - > height ;
break ;
case AVMEDIA_TYPE_DATA :
break ;
default :
abort ( ) ;
}
} else {
if ( ! ost - > enc )
ost - > enc = avcodec_find_encoder ( ost - > st - > codec - > codec_id ) ;
switch ( codec - > codec_type ) {
case AVMEDIA_TYPE_AUDIO :
ost - > fifo = av_fifo_alloc ( 1024 ) ;
if ( ! ost - > fifo )
goto fail ;
ost - > reformat_pair = MAKE_SFMT_PAIR ( AV_SAMPLE_FMT_NONE , AV_SAMPLE_FMT_NONE ) ;
if ( ! codec - > sample_rate ) {
codec - > sample_rate = icodec - > sample_rate ;
if ( icodec - > lowres )
codec - > sample_rate > > = icodec - > lowres ;
}
choose_sample_rate ( ost - > st , ost - > enc ) ;
codec - > time_base = ( AVRational ) { 1 , codec - > sample_rate } ;
if ( codec - > sample_fmt = = AV_SAMPLE_FMT_NONE )
codec - > sample_fmt = icodec - > sample_fmt ;
choose_sample_fmt ( ost - > st , ost - > enc ) ;
if ( ! codec - > channels )
codec - > channels = icodec - > channels ;
codec - > channel_layout = icodec - > channel_layout ;
if ( av_get_channel_layout_nb_channels ( codec - > channel_layout ) ! = codec - > channels )
codec - > channel_layout = 0 ;
ost - > audio_resample = codec - > sample_rate ! = icodec - > sample_rate | | audio_sync_method > 1 ;
icodec - > request_channels = codec - > channels ;
ist - > decoding_needed = 1 ;
ost - > encoding_needed = 1 ;
ost - > resample_sample_fmt = icodec - > sample_fmt ;
ost - > resample_sample_rate = icodec - > sample_rate ;
ost - > resample_channels = icodec - > channels ;
break ;
case AVMEDIA_TYPE_VIDEO :
if ( codec - > pix_fmt = = PIX_FMT_NONE )
codec - > pix_fmt = icodec - > pix_fmt ;
choose_pixel_fmt ( ost - > st , ost - > enc ) ;
if ( ost - > st - > codec - > pix_fmt = = PIX_FMT_NONE ) {
fprintf ( stderr , " Video pixel format is unknown, stream cannot be encoded \n " ) ;
exit_program ( 1 ) ;
}
if ( ! codec - > width | | ! codec - > height ) {
codec - > width = icodec - > width ;
codec - > height = icodec - > height ;
}
ost - > video_resample = codec - > width ! = icodec - > width | |
codec - > height ! = icodec - > height | |
codec - > pix_fmt ! = icodec - > pix_fmt ;
if ( ost - > video_resample ) {
# if !CONFIG_AVFILTER
avcodec_get_frame_defaults ( & ost - > pict_tmp ) ;
if ( avpicture_alloc ( ( AVPicture * ) & ost - > pict_tmp , codec - > pix_fmt ,
codec - > width , codec - > height ) ) {
fprintf ( stderr , " Cannot allocate temp picture, check pix fmt \n " ) ;
exit_program ( 1 ) ;
}
ost - > img_resample_ctx = sws_getContext (
icodec - > width ,
icodec - > height ,
icodec - > pix_fmt ,
codec - > width ,
codec - > height ,
codec - > pix_fmt ,
ost - > sws_flags , NULL , NULL , NULL ) ;
if ( ost - > img_resample_ctx = = NULL ) {
fprintf ( stderr , " Cannot get resampling context \n " ) ;
exit_program ( 1 ) ;
}
# endif
codec - > bits_per_raw_sample = 0 ;
}
ost - > resample_height = icodec - > height ;
ost - > resample_width = icodec - > width ;
ost - > resample_pix_fmt = icodec - > pix_fmt ;
ost - > encoding_needed = 1 ;
ist - > decoding_needed = 1 ;
if ( ! ost - > frame_rate . num )
ost - > frame_rate = ist - > st - > r_frame_rate . num ? ist - > st - > r_frame_rate : ( AVRational ) { 25 , 1 } ;
if ( ost - > enc & & ost - > enc - > supported_framerates & & ! force_fps ) {
int idx = av_find_nearest_q_idx ( ost - > frame_rate , ost - > enc - > supported_framerates ) ;
ost - > frame_rate = ost - > enc - > supported_framerates [ idx ] ;
}
codec - > time_base = ( AVRational ) { ost - > frame_rate . den , ost - > frame_rate . num } ;
# if CONFIG_AVFILTER
if ( configure_video_filters ( ist , ost ) ) {
fprintf ( stderr , " Error opening filters! \n " ) ;
exit ( 1 ) ;
}
# endif
break ;
case AVMEDIA_TYPE_SUBTITLE :
ost - > encoding_needed = 1 ;
ist - > decoding_needed = 1 ;
break ;
default :
abort ( ) ;
break ;
}
/* two pass mode */
if ( ost - > encoding_needed & &
( codec - > flags & ( CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2 ) ) ) {
char logfilename [ 1024 ] ;
FILE * f ;
snprintf ( logfilename , sizeof ( logfilename ) , " %s-%d.log " ,
pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX ,
i ) ;
if ( codec - > flags & CODEC_FLAG_PASS1 ) {
f = fopen ( logfilename , " wb " ) ;
if ( ! f ) {
fprintf ( stderr , " Cannot write log file '%s' for pass-1 encoding: %s \n " , logfilename , strerror ( errno ) ) ;
exit_program ( 1 ) ;
}
ost - > logfile = f ;
} else {
char * logbuffer ;
size_t logbuffer_size ;
if ( read_file ( logfilename , & logbuffer , & logbuffer_size ) < 0 ) {
fprintf ( stderr , " Error reading log file '%s' for pass-2 encoding \n " , logfilename ) ;
exit_program ( 1 ) ;
}
codec - > stats_in = logbuffer ;
}
}
}
if ( codec - > codec_type = = AVMEDIA_TYPE_VIDEO ) {
int size = codec - > width * codec - > height ;
bit_buffer_size = FFMAX ( bit_buffer_size , 6 * size + 200 ) ;
}
}
if ( ! bit_buffer )
bit_buffer = av_malloc ( bit_buffer_size ) ;
if ( ! bit_buffer ) {
fprintf ( stderr , " Cannot allocate %d bytes output buffer \n " ,
bit_buffer_size ) ;
ret = AVERROR ( ENOMEM ) ;
goto fail ;
}
/* open each encoder */
for ( i = 0 ; i < nb_output_streams ; i + + ) {
ost = & output_streams [ i ] ;
if ( ost - > encoding_needed ) {
AVCodec * codec = ost - > enc ;
AVCodecContext * dec = input_streams [ ost - > source_index ] . st - > codec ;
if ( ! codec ) {
snprintf ( error , sizeof ( error ) , " Encoder (codec id %d) not found for output stream #%d.%d " ,
ost - > st - > codec - > codec_id , ost - > file_index , ost - > index ) ;
ret = AVERROR ( EINVAL ) ;
goto dump_format ;
}
if ( dec - > subtitle_header ) {
ost - > st - > codec - > subtitle_header = av_malloc ( dec - > subtitle_header_size ) ;
if ( ! ost - > st - > codec - > subtitle_header ) {
ret = AVERROR ( ENOMEM ) ;
goto dump_format ;
}
memcpy ( ost - > st - > codec - > subtitle_header , dec - > subtitle_header , dec - > subtitle_header_size ) ;
ost - > st - > codec - > subtitle_header_size = dec - > subtitle_header_size ;
}
if ( avcodec_open2 ( ost - > st - > codec , codec , & ost - > opts ) < 0 ) {
snprintf ( error , sizeof ( error ) , " Error while opening encoder for output stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height " ,
ost - > file_index , ost - > index ) ;
ret = AVERROR ( EINVAL ) ;
goto dump_format ;
}
assert_codec_experimental ( ost - > st - > codec , 1 ) ;
assert_avoptions ( ost - > opts ) ;
if ( ost - > st - > codec - > bit_rate & & ost - > st - > codec - > bit_rate < 1000 )
av_log ( NULL , AV_LOG_WARNING , " The bitrate parameter is set too low. "
" It takes bits/s as argument, not kbits/s \n " ) ;
extra_size + = ost - > st - > codec - > extradata_size ;
}
}
/* open each decoder */
for ( i = 0 ; i < nb_input_streams ; i + + ) {
ist = & input_streams [ i ] ;
if ( ist - > decoding_needed ) {
AVCodec * codec = ist - > dec ;
if ( ! codec )
codec = avcodec_find_decoder ( ist - > st - > codec - > codec_id ) ;
if ( ! codec ) {
snprintf ( error , sizeof ( error ) , " Decoder (codec id %d) not found for input stream #%d.%d " ,
ist - > st - > codec - > codec_id , ist - > file_index , ist - > st - > index ) ;
ret = AVERROR ( EINVAL ) ;
goto dump_format ;
}
/* update requested sample format for the decoder based on the
corresponding encoder sample format */
for ( j = 0 ; j < nb_output_streams ; j + + ) {
ost = & output_streams [ j ] ;
if ( ost - > source_index = = i ) {
update_sample_fmt ( ist - > st - > codec , codec , ost - > st - > codec ) ;
break ;
}
}
if ( avcodec_open2 ( ist - > st - > codec , codec , & ist - > opts ) < 0 ) {
snprintf ( error , sizeof ( error ) , " Error while opening decoder for input stream #%d.%d " ,
ist - > file_index , ist - > st - > index ) ;
ret = AVERROR ( EINVAL ) ;
goto dump_format ;
}
assert_codec_experimental ( ist - > st - > codec , 0 ) ;
assert_avoptions ( ost - > opts ) ;
}
}
/* init pts */
for ( i = 0 ; i < nb_input_streams ; i + + ) {
AVStream * st ;
ist = & input_streams [ i ] ;
st = ist - > st ;
ist - > pts = st - > avg_frame_rate . num ? - st - > codec - > has_b_frames * AV_TIME_BASE / av_q2d ( st - > avg_frame_rate ) : 0 ;
ist - > next_pts = AV_NOPTS_VALUE ;
init_pts_correction ( & ist - > pts_ctx ) ;
ist - > is_start = 1 ;
}
/* open files and write file headers */
for ( i = 0 ; i < nb_output_files ; i + + ) {
os = output_files [ i ] . ctx ;
if ( avformat_write_header ( os , & output_files [ i ] . opts ) < 0 ) {
snprintf ( error , sizeof ( error ) , " Could not write header for output file #%d (incorrect codec parameters ?) " , i ) ;
ret = AVERROR ( EINVAL ) ;
goto dump_format ;
}
assert_avoptions ( output_files [ i ] . opts ) ;
if ( strcmp ( os - > oformat - > name , " rtp " ) ) {
want_sdp = 0 ;
}
}
dump_format :
/* dump the file output parameters - cannot be done before in case
of stream copy */
for ( i = 0 ; i < nb_output_files ; i + + ) {
av_dump_format ( output_files [ i ] . ctx , i , output_files [ i ] . ctx - > filename , 1 ) ;
}
/* dump the stream mapping */
if ( verbose > = 0 ) {
fprintf ( stderr , " Stream mapping: \n " ) ;
for ( i = 0 ; i < nb_output_streams ; i + + ) {
ost = & output_streams [ i ] ;
fprintf ( stderr , " Stream #%d.%d -> #%d.%d " ,
input_streams [ ost - > source_index ] . file_index ,
input_streams [ ost - > source_index ] . st - > index ,
ost - > file_index ,
ost - > index ) ;
if ( ost - > sync_ist ! = & input_streams [ ost - > source_index ] )
fprintf ( stderr , " [sync #%d.%d] " ,
ost - > sync_ist - > file_index ,
ost - > sync_ist - > st - > index ) ;
if ( ost - > st - > stream_copy )
fprintf ( stderr , " (copy) " ) ;
fprintf ( stderr , " \n " ) ;
}
}
if ( ret ) {
fprintf ( stderr , " %s \n " , error ) ;
goto fail ;
}
if ( want_sdp ) {
print_sdp ( output_files , nb_output_files ) ;
}
if ( verbose > = 0 )
fprintf ( stderr , " Press ctrl-c to stop encoding \n " ) ;
term_init ( ) ;
timer_start = av_gettime ( ) ;
for ( ; received_sigterm = = 0 ; ) {
int file_index , ist_index ;
AVPacket pkt ;
int64_t ipts_min ;
double opts_min ;
redo :
ipts_min = INT64_MAX ;
opts_min = 1e100 ;
/* select the stream that we must read now by looking at the
smallest output pts */
file_index = - 1 ;
for ( i = 0 ; i < nb_output_streams ; i + + ) {
int64_t ipts ;
double opts ;
ost = & output_streams [ i ] ;
os = output_files [ ost - > file_index ] . ctx ;
ist = & input_streams [ ost - > source_index ] ;
if ( ost - > is_past_recording_time | | no_packet [ ist - > file_index ] )
continue ;
opts = ost - > st - > pts . val * av_q2d ( ost - > st - > time_base ) ;
ipts = ist - > pts ;
if ( ! input_files [ ist - > file_index ] . eof_reached ) {
if ( ipts < ipts_min ) {
ipts_min = ipts ;
if ( input_sync ) file_index = ist - > file_index ;
}
if ( opts < opts_min ) {
opts_min = opts ;
if ( ! input_sync ) file_index = ist - > file_index ;
}
}
if ( ost - > frame_number > = max_frames [ ost - > st - > codec - > codec_type ] ) {
file_index = - 1 ;
break ;
}
}
/* if none, if is finished */
if ( file_index < 0 ) {
if ( no_packet_count ) {
no_packet_count = 0 ;
memset ( no_packet , 0 , nb_input_files ) ;
usleep ( 10000 ) ;
continue ;
}
break ;
}
/* finish if limit size exhausted */
if ( limit_filesize ! = 0 & & limit_filesize < = avio_tell ( output_files [ 0 ] . ctx - > pb ) )
break ;
/* read a frame from it and output it in the fifo */
is = input_files [ file_index ] . ctx ;
ret = av_read_frame ( is , & pkt ) ;
if ( ret = = AVERROR ( EAGAIN ) ) {
no_packet [ file_index ] = 1 ;
no_packet_count + + ;
continue ;
}
if ( ret < 0 ) {
input_files [ file_index ] . eof_reached = 1 ;
if ( opt_shortest )
break ;
else
continue ;
}
no_packet_count = 0 ;
memset ( no_packet , 0 , nb_input_files ) ;
if ( do_pkt_dump ) {
av_pkt_dump_log2 ( NULL , AV_LOG_DEBUG , & pkt , do_hex_dump ,
is - > streams [ pkt . stream_index ] ) ;
}
/* the following test is needed in case new streams appear
dynamically in stream : we ignore them */
if ( pkt . stream_index > = input_files [ file_index ] . ctx - > nb_streams )
goto discard_packet ;
ist_index = input_files [ file_index ] . ist_index + pkt . stream_index ;
ist = & input_streams [ ist_index ] ;
if ( ist - > discard )
goto discard_packet ;
if ( pkt . dts ! = AV_NOPTS_VALUE )
pkt . dts + = av_rescale_q ( input_files [ ist - > file_index ] . ts_offset , AV_TIME_BASE_Q , ist - > st - > time_base ) ;
if ( pkt . pts ! = AV_NOPTS_VALUE )
pkt . pts + = av_rescale_q ( input_files [ ist - > file_index ] . ts_offset , AV_TIME_BASE_Q , ist - > st - > time_base ) ;
if ( ist - > ts_scale ) {
if ( pkt . pts ! = AV_NOPTS_VALUE )
pkt . pts * = ist - > ts_scale ;
if ( pkt . dts ! = AV_NOPTS_VALUE )
pkt . dts * = ist - > ts_scale ;
}
// fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n", ist->next_pts, pkt.dts, input_files[ist->file_index].ts_offset, ist->st->codec->codec_type);
if ( pkt . dts ! = AV_NOPTS_VALUE & & ist - > next_pts ! = AV_NOPTS_VALUE
& & ( is - > iformat - > flags & AVFMT_TS_DISCONT ) ) {
int64_t pkt_dts = av_rescale_q ( pkt . dts , ist - > st - > time_base , AV_TIME_BASE_Q ) ;
int64_t delta = pkt_dts - ist - > next_pts ;
if ( ( FFABS ( delta ) > 1LL * dts_delta_threshold * AV_TIME_BASE | | pkt_dts + 1 < ist - > pts ) & & ! copy_ts ) {
input_files [ ist - > file_index ] . ts_offset - = delta ;
if ( verbose > 2 )
fprintf ( stderr , " timestamp discontinuity % " PRId64 " , new offset= % " PRId64 " \n " ,
delta , input_files [ ist - > file_index ] . ts_offset ) ;
pkt . dts - = av_rescale_q ( delta , AV_TIME_BASE_Q , ist - > st - > time_base ) ;
if ( pkt . pts ! = AV_NOPTS_VALUE )
pkt . pts - = av_rescale_q ( delta , AV_TIME_BASE_Q , ist - > st - > time_base ) ;
}
}
//fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
if ( output_packet ( ist , ist_index , output_streams , nb_output_streams , & pkt ) < 0 ) {
if ( verbose > = 0 )
fprintf ( stderr , " Error while decoding stream #%d.%d \n " ,
ist - > file_index , ist - > st - > index ) ;
if ( exit_on_error )
exit_program ( 1 ) ;
av_free_packet ( & pkt ) ;
goto redo ;
}
discard_packet :
av_free_packet ( & pkt ) ;
/* dump report by using the output first video and audio streams */
print_report ( output_files , output_streams , nb_output_streams , 0 ) ;
}
/* at the end of stream, we must flush the decoder buffers */
for ( i = 0 ; i < nb_input_streams ; i + + ) {
ist = & input_streams [ i ] ;
if ( ist - > decoding_needed ) {
output_packet ( ist , i , output_streams , nb_output_streams , NULL ) ;
}
}
term_exit ( ) ;
/* write the trailer if needed and close file */
for ( i = 0 ; i < nb_output_files ; i + + ) {
os = output_files [ i ] . ctx ;
av_write_trailer ( os ) ;
}
/* dump report by using the first video and audio streams */
print_report ( output_files , output_streams , nb_output_streams , 1 ) ;
/* close each encoder */
for ( i = 0 ; i < nb_output_streams ; i + + ) {
ost = & output_streams [ i ] ;
if ( ost - > encoding_needed ) {
av_freep ( & ost - > st - > codec - > stats_in ) ;
avcodec_close ( ost - > st - > codec ) ;
}
# if CONFIG_AVFILTER
avfilter_graph_free ( & ost - > graph ) ;
# endif
}
/* close each decoder */
for ( i = 0 ; i < nb_input_streams ; i + + ) {
ist = & input_streams [ i ] ;
if ( ist - > decoding_needed ) {
avcodec_close ( ist - > st - > codec ) ;
}
}
/* finished ! */
ret = 0 ;
fail :
av_freep ( & bit_buffer ) ;
av_freep ( & no_packet ) ;
if ( output_streams ) {
for ( i = 0 ; i < nb_output_streams ; i + + ) {
ost = & output_streams [ i ] ;
if ( ost ) {
if ( ost - > st - > stream_copy )
av_freep ( & ost - > st - > codec - > extradata ) ;
if ( ost - > logfile ) {
fclose ( ost - > logfile ) ;
ost - > logfile = NULL ;
}
av_fifo_free ( ost - > fifo ) ; /* works even if fifo is not
initialized but set to zero */
av_freep ( & ost - > st - > codec - > subtitle_header ) ;
av_free ( ost - > pict_tmp . data [ 0 ] ) ;
av_free ( ost - > forced_kf_pts ) ;
if ( ost - > video_resample )
sws_freeContext ( ost - > img_resample_ctx ) ;
if ( ost - > resample )
audio_resample_close ( ost - > resample ) ;
if ( ost - > reformat_ctx )
av_audio_convert_free ( ost - > reformat_ctx ) ;
av_dict_free ( & ost - > opts ) ;
}
}
}
return ret ;
}
static int opt_format ( const char * opt , const char * arg )
{
last_asked_format = arg ;
return 0 ;
}
static int opt_video_rc_override_string ( const char * opt , const char * arg )
{
video_rc_override_string = arg ;
return 0 ;
}
static int opt_me_threshold ( const char * opt , const char * arg )
{
me_threshold = parse_number_or_die ( opt , arg , OPT_INT64 , INT_MIN , INT_MAX ) ;
return 0 ;
}
static int opt_verbose ( const char * opt , const char * arg )
{
verbose = parse_number_or_die ( opt , arg , OPT_INT64 , - 10 , 10 ) ;
return 0 ;
}
static int opt_frame_rate ( const char * opt , const char * arg )
{
if ( av_parse_video_rate ( & frame_rate , arg ) < 0 ) {
fprintf ( stderr , " Incorrect value for %s: %s \n " , opt , arg ) ;
exit_program ( 1 ) ;
}
return 0 ;
}
static int opt_frame_crop ( const char * opt , const char * arg )
{
fprintf ( stderr , " Option '%s' has been removed, use the crop filter instead \n " , opt ) ;
return AVERROR ( EINVAL ) ;
}
static int opt_frame_size ( const char * opt , const char * arg )
{
if ( av_parse_video_size ( & frame_width , & frame_height , arg ) < 0 ) {
fprintf ( stderr , " Incorrect frame size \n " ) ;
return AVERROR ( EINVAL ) ;
}
return 0 ;
}
static int opt_pad ( const char * opt , const char * arg ) {
fprintf ( stderr , " Option '%s' has been removed, use the pad filter instead \n " , opt ) ;
return - 1 ;
}
static int opt_frame_pix_fmt ( const char * opt , const char * arg )
{
if ( strcmp ( arg , " list " ) ) {
frame_pix_fmt = av_get_pix_fmt ( arg ) ;
if ( frame_pix_fmt = = PIX_FMT_NONE ) {
fprintf ( stderr , " Unknown pixel format requested: %s \n " , arg ) ;
return AVERROR ( EINVAL ) ;
}
} else {
show_pix_fmts ( ) ;
exit_program ( 0 ) ;
}
return 0 ;
}
static int opt_frame_aspect_ratio ( const char * opt , const char * arg )
{
int x = 0 , y = 0 ;
double ar = 0 ;
const char * p ;
char * end ;
p = strchr ( arg , ' : ' ) ;
if ( p ) {
x = strtol ( arg , & end , 10 ) ;
if ( end = = p )
y = strtol ( end + 1 , & end , 10 ) ;
if ( x > 0 & & y > 0 )
ar = ( double ) x / ( double ) y ;
} else
ar = strtod ( arg , NULL ) ;
if ( ! ar ) {
fprintf ( stderr , " Incorrect aspect ratio specification. \n " ) ;
return AVERROR ( EINVAL ) ;
}
frame_aspect_ratio = ar ;
return 0 ;
}
static int opt_metadata ( const char * opt , const char * arg )
{
char * mid = strchr ( arg , ' = ' ) ;
if ( ! mid ) {
fprintf ( stderr , " Missing = \n " ) ;
exit_program ( 1 ) ;
}
* mid + + = 0 ;
av_dict_set ( & metadata , arg , mid , 0 ) ;
return 0 ;
}
static int opt_qscale ( const char * opt , const char * arg )
{
video_qscale = parse_number_or_die ( opt , arg , OPT_FLOAT , 0 , 255 ) ;
if ( video_qscale = = 0 ) {
fprintf ( stderr , " qscale must be > 0.0 and <= 255 \n " ) ;
return AVERROR ( EINVAL ) ;
}
return 0 ;
}
static int opt_top_field_first ( const char * opt , const char * arg )
{
top_field_first = parse_number_or_die ( opt , arg , OPT_INT , 0 , 1 ) ;
return 0 ;
}
static int opt_thread_count ( const char * opt , const char * arg )
{
thread_count = parse_number_or_die ( opt , arg , OPT_INT64 , 0 , INT_MAX ) ;
# if !HAVE_THREADS
if ( verbose > = 0 )
fprintf ( stderr , " Warning: not compiled with thread support, using thread emulation \n " ) ;
# endif
return 0 ;
}
static int opt_audio_sample_fmt ( const char * opt , const char * arg )
{
if ( strcmp ( arg , " list " ) ) {
audio_sample_fmt = av_get_sample_fmt ( arg ) ;
if ( audio_sample_fmt = = AV_SAMPLE_FMT_NONE ) {
av_log ( NULL , AV_LOG_ERROR , " Invalid sample format '%s' \n " , arg ) ;
return AVERROR ( EINVAL ) ;
}
} else {
int i ;
char fmt_str [ 128 ] ;
for ( i = - 1 ; i < AV_SAMPLE_FMT_NB ; i + + )
printf ( " %s \n " , av_get_sample_fmt_string ( fmt_str , sizeof ( fmt_str ) , i ) ) ;
exit_program ( 0 ) ;
}
return 0 ;
}
static int opt_audio_rate ( const char * opt , const char * arg )
{
audio_sample_rate = parse_number_or_die ( opt , arg , OPT_INT64 , 0 , INT_MAX ) ;
return 0 ;
}
static int opt_audio_channels ( const char * opt , const char * arg )
{
audio_channels = parse_number_or_die ( opt , arg , OPT_INT64 , 0 , INT_MAX ) ;
return 0 ;
}
static int opt_codec ( const char * opt , const char * arg )
{
return av_dict_set ( & codec_names , opt , arg , 0 ) ;
}
static int opt_audio_codec ( const char * opt , const char * arg )
{
return opt_codec ( " codec:a " , arg ) ;
}
static int opt_video_codec ( const char * opt , const char * arg )
{
return opt_codec ( " codec:v " , arg ) ;
}
static int opt_subtitle_codec ( const char * opt , const char * arg )
{
return opt_codec ( " codec:s " , arg ) ;
}
static int opt_data_codec ( const char * opt , const char * arg )
{
return opt_codec ( " codec:d " , arg ) ;
}
static int opt_codec_tag ( const char * opt , const char * arg )
{
char * tail ;
uint32_t * codec_tag ;
codec_tag = ! strcmp ( opt , " atag " ) ? & audio_codec_tag :
! strcmp ( opt , " vtag " ) ? & video_codec_tag :
! strcmp ( opt , " stag " ) ? & subtitle_codec_tag : NULL ;
if ( ! codec_tag )
return - 1 ;
* codec_tag = strtol ( arg , & tail , 0 ) ;
if ( ! tail | | * tail )
* codec_tag = AV_RL32 ( arg ) ;
return 0 ;
}
static int opt_map ( const char * opt , const char * arg )
{
StreamMap * m = NULL ;
int i , negative = 0 , file_idx ;
int sync_file_idx = - 1 , sync_stream_idx ;
char * p , * sync ;
char * map ;
if ( * arg = = ' - ' ) {
negative = 1 ;
arg + + ;
}
map = av_strdup ( arg ) ;
/* parse sync stream first, just pick first matching stream */
if ( sync = strchr ( map , ' , ' ) ) {
* sync = 0 ;
sync_file_idx = strtol ( sync + 1 , & sync , 0 ) ;
if ( sync_file_idx > = nb_input_files | | sync_file_idx < 0 ) {
av_log ( NULL , AV_LOG_ERROR , " Invalid sync file index: %d. \n " , sync_file_idx ) ;
exit_program ( 1 ) ;
}
if ( * sync )
sync + + ;
for ( i = 0 ; i < input_files [ sync_file_idx ] . ctx - > nb_streams ; i + + )
if ( check_stream_specifier ( input_files [ sync_file_idx ] . ctx ,
input_files [ sync_file_idx ] . ctx - > streams [ i ] , sync ) = = 1 ) {
sync_stream_idx = i ;
break ;
}
if ( i = = input_files [ sync_file_idx ] . ctx - > nb_streams ) {
av_log ( NULL , AV_LOG_ERROR , " Sync stream specification in map %s does not "
" match any streams. \n " , arg ) ;
exit_program ( 1 ) ;
}
}
file_idx = strtol ( map , & p , 0 ) ;
if ( file_idx > = nb_input_files | | file_idx < 0 ) {
av_log ( NULL , AV_LOG_ERROR , " Invalid input file index: %d. \n " , file_idx ) ;
exit_program ( 1 ) ;
}
if ( negative )
/* disable some already defined maps */
for ( i = 0 ; i < nb_stream_maps ; i + + ) {
m = & stream_maps [ i ] ;
if ( check_stream_specifier ( input_files [ m - > file_index ] . ctx ,
input_files [ m - > file_index ] . ctx - > streams [ m - > stream_index ] ,
* p = = ' : ' ? p + 1 : p ) > 0 )
m - > disabled = 1 ;
}
else
for ( i = 0 ; i < input_files [ file_idx ] . ctx - > nb_streams ; i + + ) {
if ( check_stream_specifier ( input_files [ file_idx ] . ctx , input_files [ file_idx ] . ctx - > streams [ i ] ,
* p = = ' : ' ? p + 1 : p ) < = 0 )
continue ;
stream_maps = grow_array ( stream_maps , sizeof ( * stream_maps ) , & nb_stream_maps , nb_stream_maps + 1 ) ;
m = & stream_maps [ nb_stream_maps - 1 ] ;
m - > file_index = file_idx ;
m - > stream_index = i ;
if ( sync_file_idx > = 0 ) {
m - > sync_file_index = sync_file_idx ;
m - > sync_stream_index = sync_stream_idx ;
} else {
m - > sync_file_index = file_idx ;
m - > sync_stream_index = i ;
}
}
if ( ! m ) {
av_log ( NULL , AV_LOG_ERROR , " Stream map '%s' matches no streams. \n " , arg ) ;
exit_program ( 1 ) ;
}
av_freep ( & map ) ;
return 0 ;
}
static void parse_meta_type ( char * arg , char * type , int * index )
{
if ( * arg = = ' : ' ) {
* type = * ( + + arg ) ;
switch ( * arg ) {
case ' g ' :
break ;
case ' s ' :
case ' c ' :
case ' p ' :
if ( * ( + + arg ) = = ' : ' )
* index = strtol ( + + arg , NULL , 0 ) ;
break ;
default :
fprintf ( stderr , " Invalid metadata type %c. \n " , * arg ) ;
exit_program ( 1 ) ;
}
} else
* type = ' g ' ;
}
static int opt_map_metadata ( const char * opt , const char * arg )
{
MetadataMap * m , * m1 ;
char * p ;
meta_data_maps = grow_array ( meta_data_maps , sizeof ( * meta_data_maps ) ,
& nb_meta_data_maps , nb_meta_data_maps + 1 ) ;
m = & meta_data_maps [ nb_meta_data_maps - 1 ] [ 1 ] ;
m - > file = strtol ( arg , & p , 0 ) ;
parse_meta_type ( p , & m - > type , & m - > index ) ;
m1 = & meta_data_maps [ nb_meta_data_maps - 1 ] [ 0 ] ;
if ( p = strchr ( opt , ' : ' ) )
parse_meta_type ( p , & m1 - > type , & m1 - > index ) ;
else
m1 - > type = ' g ' ;
if ( m - > type = = ' g ' | | m1 - > type = = ' g ' )
metadata_global_autocopy = 0 ;
if ( m - > type = = ' s ' | | m1 - > type = = ' s ' )
metadata_streams_autocopy = 0 ;
if ( m - > type = = ' c ' | | m1 - > type = = ' c ' )
metadata_chapters_autocopy = 0 ;
return 0 ;
}
static int opt_input_ts_scale ( const char * opt , const char * arg )
{
return av_dict_set ( & ts_scale , opt , arg , 0 ) ;
}
static int opt_recording_time ( const char * opt , const char * arg )
{
recording_time = parse_time_or_die ( opt , arg , 1 ) ;
return 0 ;
}
static int opt_start_time ( const char * opt , const char * arg )
{
start_time = parse_time_or_die ( opt , arg , 1 ) ;
return 0 ;
}
static int opt_input_ts_offset ( const char * opt , const char * arg )
{
input_ts_offset = parse_time_or_die ( opt , arg , 1 ) ;
return 0 ;
}
static enum CodecID find_codec_or_die ( const char * name , enum AVMediaType type , int encoder )
{
const char * codec_string = encoder ? " encoder " : " decoder " ;
AVCodec * codec ;
if ( ! name )
return CODEC_ID_NONE ;
codec = encoder ?
avcodec_find_encoder_by_name ( name ) :
avcodec_find_decoder_by_name ( name ) ;
if ( ! codec ) {
av_log ( NULL , AV_LOG_ERROR , " Unknown %s '%s' \n " , codec_string , name ) ;
exit_program ( 1 ) ;
}
if ( codec - > type ! = type ) {
av_log ( NULL , AV_LOG_ERROR , " Invalid %s type '%s' \n " , codec_string , name ) ;
exit_program ( 1 ) ;
}
return codec - > id ;
}
static AVCodec * choose_codec ( AVFormatContext * s , AVStream * st , enum AVMediaType type , AVDictionary * codec_names )
{
AVDictionaryEntry * e = NULL ;
char * codec_name = NULL ;
int ret ;
while ( e = av_dict_get ( codec_names , " " , e , AV_DICT_IGNORE_SUFFIX ) ) {
char * p = strchr ( e - > key , ' : ' ) ;
if ( ( ret = check_stream_specifier ( s , st , p ? p + 1 : " " ) ) > 0 )
codec_name = e - > value ;
else if ( ret < 0 )
exit_program ( 1 ) ;
}
if ( ! codec_name ) {
if ( s - > oformat ) {
st - > codec - > codec_id = av_guess_codec ( s - > oformat , NULL , s - > filename , NULL , type ) ;
return avcodec_find_encoder ( st - > codec - > codec_id ) ;
}
} else if ( ! strcmp ( codec_name , " copy " ) )
st - > stream_copy = 1 ;
else {
st - > codec - > codec_id = find_codec_or_die ( codec_name , type , s - > iformat = = NULL ) ;
return s - > oformat ? avcodec_find_encoder_by_name ( codec_name ) :
avcodec_find_decoder_by_name ( codec_name ) ;
}
return NULL ;
}
/**
* Add all the streams from the given input file to the global
* list of input streams .
*/
static void add_input_streams ( AVFormatContext * ic )
{
int i , rfps , rfps_base , ret ;
for ( i = 0 ; i < ic - > nb_streams ; i + + ) {
AVStream * st = ic - > streams [ i ] ;
AVCodecContext * dec = st - > codec ;
AVDictionaryEntry * e = NULL ;
InputStream * ist ;
char * scale = NULL ;
dec - > thread_count = thread_count ;
input_streams = grow_array ( input_streams , sizeof ( * input_streams ) , & nb_input_streams , nb_input_streams + 1 ) ;
ist = & input_streams [ nb_input_streams - 1 ] ;
ist - > st = st ;
ist - > file_index = nb_input_files ;
ist - > discard = 1 ;
ist - > opts = filter_codec_opts ( codec_opts , ist - > st - > codec - > codec_id , ic , st ) ;
while ( e = av_dict_get ( ts_scale , " " , e , AV_DICT_IGNORE_SUFFIX ) ) {
char * p = strchr ( e - > key , ' : ' ) ;
if ( ( ret = check_stream_specifier ( ic , st , p ? p + 1 : " " ) ) > 0 )
scale = e - > value ;
else if ( ret < 0 )
exit_program ( 1 ) ;
}
if ( scale )
ist - > ts_scale = strtod ( scale , NULL ) ;
ist - > dec = choose_codec ( ic , st , dec - > codec_type , codec_names ) ;
switch ( dec - > codec_type ) {
case AVMEDIA_TYPE_AUDIO :
if ( audio_disable )
st - > discard = AVDISCARD_ALL ;
break ;
case AVMEDIA_TYPE_VIDEO :
rfps = ic - > streams [ i ] - > r_frame_rate . num ;
rfps_base = ic - > streams [ i ] - > r_frame_rate . den ;
if ( dec - > lowres ) {
dec - > flags | = CODEC_FLAG_EMU_EDGE ;
dec - > height > > = dec - > lowres ;
dec - > width > > = dec - > lowres ;
}
if ( me_threshold )
dec - > debug | = FF_DEBUG_MV ;
if ( dec - > time_base . den ! = rfps * dec - > ticks_per_frame | | dec - > time_base . num ! = rfps_base ) {
if ( verbose > = 0 )
fprintf ( stderr , " \n Seems stream %d codec frame rate differs from container frame rate: %2.2f (%d/%d) -> %2.2f (%d/%d) \n " ,
i , ( float ) dec - > time_base . den / dec - > time_base . num , dec - > time_base . den , dec - > time_base . num ,
( float ) rfps / rfps_base , rfps , rfps_base ) ;
}
if ( video_disable )
st - > discard = AVDISCARD_ALL ;
else if ( video_discard )
st - > discard = video_discard ;
break ;
case AVMEDIA_TYPE_DATA :
break ;
case AVMEDIA_TYPE_SUBTITLE :
if ( subtitle_disable )
st - > discard = AVDISCARD_ALL ;
break ;
case AVMEDIA_TYPE_ATTACHMENT :
case AVMEDIA_TYPE_UNKNOWN :
break ;
default :
abort ( ) ;
}
}
}
static int opt_input_file ( const char * opt , const char * filename )
{
AVFormatContext * ic ;
AVInputFormat * file_iformat = NULL ;
int err , i , ret ;
int64_t timestamp ;
uint8_t buf [ 128 ] ;
AVDictionary * * opts ;
int orig_nb_streams ; // number of streams before avformat_find_stream_info
if ( last_asked_format ) {
if ( ! ( file_iformat = av_find_input_format ( last_asked_format ) ) ) {
fprintf ( stderr , " Unknown input format: '%s' \n " , last_asked_format ) ;
exit_program ( 1 ) ;
}
last_asked_format = NULL ;
}
if ( ! strcmp ( filename , " - " ) )
filename = " pipe: " ;
using_stdin | = ! strncmp ( filename , " pipe: " , 5 ) | |
! strcmp ( filename , " /dev/stdin " ) ;
/* get default parameters from command line */
ic = avformat_alloc_context ( ) ;
if ( ! ic ) {
print_error ( filename , AVERROR ( ENOMEM ) ) ;
exit_program ( 1 ) ;
}
if ( audio_sample_rate ) {
snprintf ( buf , sizeof ( buf ) , " %d " , audio_sample_rate ) ;
av_dict_set ( & format_opts , " sample_rate " , buf , 0 ) ;
}
if ( audio_channels ) {
snprintf ( buf , sizeof ( buf ) , " %d " , audio_channels ) ;
av_dict_set ( & format_opts , " channels " , buf , 0 ) ;
}
if ( frame_rate . num ) {
snprintf ( buf , sizeof ( buf ) , " %d/%d " , frame_rate . num , frame_rate . den ) ;
av_dict_set ( & format_opts , " framerate " , buf , 0 ) ;
}
if ( frame_width & & frame_height ) {
snprintf ( buf , sizeof ( buf ) , " %dx%d " , frame_width , frame_height ) ;
av_dict_set ( & format_opts , " video_size " , buf , 0 ) ;
}
if ( frame_pix_fmt ! = PIX_FMT_NONE )
av_dict_set ( & format_opts , " pixel_format " , av_get_pix_fmt_name ( frame_pix_fmt ) , 0 ) ;
ic - > flags | = AVFMT_FLAG_NONBLOCK ;
/* open the input file with generic libav function */
err = avformat_open_input ( & ic , filename , file_iformat , & format_opts ) ;
if ( err < 0 ) {
print_error ( filename , err ) ;
exit_program ( 1 ) ;
}
assert_avoptions ( format_opts ) ;
if ( opt_programid ) {
int i , j ;
int found = 0 ;
for ( i = 0 ; i < ic - > nb_streams ; i + + ) {
ic - > streams [ i ] - > discard = AVDISCARD_ALL ;
}
for ( i = 0 ; i < ic - > nb_programs ; i + + ) {
AVProgram * p = ic - > programs [ i ] ;
if ( p - > id ! = opt_programid ) {
p - > discard = AVDISCARD_ALL ;
} else {
found = 1 ;
for ( j = 0 ; j < p - > nb_stream_indexes ; j + + ) {
ic - > streams [ p - > stream_index [ j ] ] - > discard = AVDISCARD_DEFAULT ;
}
}
}
if ( ! found ) {
fprintf ( stderr , " Specified program id not found \n " ) ;
exit_program ( 1 ) ;
}
opt_programid = 0 ;
}
/* apply forced codec ids */
for ( i = 0 ; i < ic - > nb_streams ; i + + )
choose_codec ( ic , ic - > streams [ i ] , ic - > streams [ i ] - > codec - > codec_type , codec_names ) ;
/* Set AVCodecContext options for avformat_find_stream_info */
opts = setup_find_stream_info_opts ( ic , codec_opts ) ;
orig_nb_streams = ic - > nb_streams ;
/* If not enough info to get the stream parameters, we decode the
first frames to get it . ( used in mpeg case for example ) */
ret = avformat_find_stream_info ( ic , opts ) ;
if ( ret < 0 & & verbose > = 0 ) {
fprintf ( stderr , " %s: could not find codec parameters \n " , filename ) ;
av_close_input_file ( ic ) ;
exit_program ( 1 ) ;
}
timestamp = start_time ;
/* add the stream start time */
if ( ic - > start_time ! = AV_NOPTS_VALUE )
timestamp + = ic - > start_time ;
/* if seeking requested, we execute it */
if ( start_time ! = 0 ) {
ret = av_seek_frame ( ic , - 1 , timestamp , AVSEEK_FLAG_BACKWARD ) ;
if ( ret < 0 ) {
fprintf ( stderr , " %s: could not seek to position %0.3f \n " ,
filename , ( double ) timestamp / AV_TIME_BASE ) ;
}
/* reset seek info */
start_time = 0 ;
}
/* update the current parameters so that they match the one of the input stream */
add_input_streams ( ic ) ;
/* dump the file content */
if ( verbose > = 0 )
av_dump_format ( ic , nb_input_files , filename , 0 ) ;
input_files = grow_array ( input_files , sizeof ( * input_files ) , & nb_input_files , nb_input_files + 1 ) ;
input_files [ nb_input_files - 1 ] . ctx = ic ;
input_files [ nb_input_files - 1 ] . ist_index = nb_input_streams - ic - > nb_streams ;
input_files [ nb_input_files - 1 ] . ts_offset = input_ts_offset - ( copy_ts ? 0 : timestamp ) ;
frame_rate = ( AVRational ) { 0 , 0 } ;
frame_pix_fmt = PIX_FMT_NONE ;
frame_height = 0 ;
frame_width = 0 ;
audio_sample_rate = 0 ;
audio_channels = 0 ;
audio_sample_fmt = AV_SAMPLE_FMT_NONE ;
av_dict_free ( & ts_scale ) ;
for ( i = 0 ; i < orig_nb_streams ; i + + )
av_dict_free ( & opts [ i ] ) ;
av_freep ( & opts ) ;
av_dict_free ( & codec_names ) ;
uninit_opts ( ) ;
init_opts ( ) ;
return 0 ;
}
static void parse_forced_key_frames ( char * kf , OutputStream * ost ,
AVCodecContext * avctx )
{
char * p ;
int n = 1 , i ;
int64_t t ;
for ( p = kf ; * p ; p + + )
if ( * p = = ' , ' )
n + + ;
ost - > forced_kf_count = n ;
ost - > forced_kf_pts = av_malloc ( sizeof ( * ost - > forced_kf_pts ) * n ) ;
if ( ! ost - > forced_kf_pts ) {
av_log ( NULL , AV_LOG_FATAL , " Could not allocate forced key frames array. \n " ) ;
exit_program ( 1 ) ;
}
for ( i = 0 ; i < n ; i + + ) {
p = i ? strchr ( p , ' , ' ) + 1 : kf ;
t = parse_time_or_die ( " force_key_frames " , p , 1 ) ;
ost - > forced_kf_pts [ i ] = av_rescale_q ( t , AV_TIME_BASE_Q , avctx - > time_base ) ;
}
}
static OutputStream * new_output_stream ( AVFormatContext * oc , enum AVMediaType type )
{
OutputStream * ost ;
AVStream * st = av_new_stream ( oc , oc - > nb_streams < nb_streamid_map ? streamid_map [ oc - > nb_streams ] : 0 ) ;
int idx = oc - > nb_streams - 1 ;
if ( ! st ) {
av_log ( NULL , AV_LOG_ERROR , " Could not alloc stream. \n " ) ;
exit_program ( 1 ) ;
}
output_streams = grow_array ( output_streams , sizeof ( * output_streams ) , & nb_output_streams ,
nb_output_streams + 1 ) ;
ost = & output_streams [ nb_output_streams - 1 ] ;
ost - > file_index = nb_output_files ;
ost - > index = idx ;
ost - > st = st ;
st - > codec - > codec_type = type ;
ost - > enc = choose_codec ( oc , st , type , codec_names ) ;
if ( ost - > enc ) {
ost - > opts = filter_codec_opts ( codec_opts , ost - > enc - > id , oc , st ) ;
}
avcodec_get_context_defaults3 ( st - > codec , ost - > enc ) ;
st - > codec - > codec_type = type ; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
ost - > sws_flags = av_get_int ( sws_opts , " sws_flags " , NULL ) ;
return ost ;
}
static OutputStream * new_video_stream ( AVFormatContext * oc )
{
AVStream * st ;
OutputStream * ost ;
AVCodecContext * video_enc ;
ost = new_output_stream ( oc , AVMEDIA_TYPE_VIDEO ) ;
st = ost - > st ;
if ( ! st - > stream_copy ) {
ost - > frame_aspect_ratio = frame_aspect_ratio ;
frame_aspect_ratio = 0 ;
# if CONFIG_AVFILTER
ost - > avfilter = vfilters ;
vfilters = NULL ;
# endif
}
ost - > bitstream_filters = video_bitstream_filters ;
video_bitstream_filters = NULL ;
st - > codec - > thread_count = thread_count ;
video_enc = st - > codec ;
if ( video_codec_tag )
video_enc - > codec_tag = video_codec_tag ;
if ( oc - > oformat - > flags & AVFMT_GLOBALHEADER ) {
video_enc - > flags | = CODEC_FLAG_GLOBAL_HEADER ;
}
if ( st - > stream_copy ) {
video_enc - > sample_aspect_ratio =
st - > sample_aspect_ratio = av_d2q ( frame_aspect_ratio * frame_height / frame_width , 255 ) ;
} else {
const char * p ;
int i ;
if ( frame_rate . num )
ost - > frame_rate = frame_rate ;
video_enc - > width = frame_width ;
video_enc - > height = frame_height ;
video_enc - > pix_fmt = frame_pix_fmt ;
st - > sample_aspect_ratio = video_enc - > sample_aspect_ratio ;
if ( intra_only )
video_enc - > gop_size = 0 ;
if ( video_qscale | | same_quant ) {
video_enc - > flags | = CODEC_FLAG_QSCALE ;
video_enc - > global_quality = FF_QP2LAMBDA * video_qscale ;
}
if ( intra_matrix )
video_enc - > intra_matrix = intra_matrix ;
if ( inter_matrix )
video_enc - > inter_matrix = inter_matrix ;
p = video_rc_override_string ;
for ( i = 0 ; p ; i + + ) {
int start , end , q ;
int e = sscanf ( p , " %d,%d,%d " , & start , & end , & q ) ;
if ( e ! = 3 ) {
fprintf ( stderr , " error parsing rc_override \n " ) ;
exit_program ( 1 ) ;
}
video_enc - > rc_override =
av_realloc ( video_enc - > rc_override ,
sizeof ( RcOverride ) * ( i + 1 ) ) ;
video_enc - > rc_override [ i ] . start_frame = start ;
video_enc - > rc_override [ i ] . end_frame = end ;
if ( q > 0 ) {
video_enc - > rc_override [ i ] . qscale = q ;
video_enc - > rc_override [ i ] . quality_factor = 1.0 ;
}
else {
video_enc - > rc_override [ i ] . qscale = 0 ;
video_enc - > rc_override [ i ] . quality_factor = - q / 100.0 ;
}
p = strchr ( p , ' / ' ) ;
if ( p ) p + + ;
}
video_enc - > rc_override_count = i ;
if ( ! video_enc - > rc_initial_buffer_occupancy )
video_enc - > rc_initial_buffer_occupancy = video_enc - > rc_buffer_size * 3 / 4 ;
video_enc - > me_threshold = me_threshold ;
video_enc - > intra_dc_precision = intra_dc_precision - 8 ;
if ( do_psnr )
video_enc - > flags | = CODEC_FLAG_PSNR ;
/* two pass mode */
if ( do_pass ) {
if ( do_pass = = 1 ) {
video_enc - > flags | = CODEC_FLAG_PASS1 ;
} else {
video_enc - > flags | = CODEC_FLAG_PASS2 ;
}
}
if ( forced_key_frames )
parse_forced_key_frames ( forced_key_frames , ost , video_enc ) ;
}
if ( video_language ) {
av_dict_set ( & st - > metadata , " language " , video_language , 0 ) ;
av_freep ( & video_language ) ;
}
/* reset some key parameters */
video_disable = 0 ;
av_freep ( & forced_key_frames ) ;
frame_pix_fmt = PIX_FMT_NONE ;
return ost ;
}
static OutputStream * new_audio_stream ( AVFormatContext * oc )
{
AVStream * st ;
OutputStream * ost ;
AVCodecContext * audio_enc ;
ost = new_output_stream ( oc , AVMEDIA_TYPE_AUDIO ) ;
st = ost - > st ;
ost - > bitstream_filters = audio_bitstream_filters ;
audio_bitstream_filters = NULL ;
st - > codec - > thread_count = thread_count ;
audio_enc = st - > codec ;
audio_enc - > codec_type = AVMEDIA_TYPE_AUDIO ;
if ( audio_codec_tag )
audio_enc - > codec_tag = audio_codec_tag ;
if ( oc - > oformat - > flags & AVFMT_GLOBALHEADER ) {
audio_enc - > flags | = CODEC_FLAG_GLOBAL_HEADER ;
}
if ( ! st - > stream_copy ) {
if ( audio_qscale > QSCALE_NONE ) {
audio_enc - > flags | = CODEC_FLAG_QSCALE ;
audio_enc - > global_quality = FF_QP2LAMBDA * audio_qscale ;
}
if ( audio_channels )
audio_enc - > channels = audio_channels ;
if ( audio_sample_fmt ! = AV_SAMPLE_FMT_NONE )
audio_enc - > sample_fmt = audio_sample_fmt ;
if ( audio_sample_rate )
audio_enc - > sample_rate = audio_sample_rate ;
}
if ( audio_language ) {
av_dict_set ( & st - > metadata , " language " , audio_language , 0 ) ;
av_freep ( & audio_language ) ;
}
/* reset some key parameters */
audio_disable = 0 ;
return ost ;
}
static OutputStream * new_data_stream ( AVFormatContext * oc )
{
AVStream * st ;
OutputStream * ost ;
AVCodecContext * data_enc ;
ost = new_output_stream ( oc , AVMEDIA_TYPE_DATA ) ;
st = ost - > st ;
data_enc = st - > codec ;
if ( ! st - > stream_copy ) {
fprintf ( stderr , " Data stream encoding not supported yet (only streamcopy) \n " ) ;
exit_program ( 1 ) ;
}
if ( data_codec_tag )
data_enc - > codec_tag = data_codec_tag ;
if ( oc - > oformat - > flags & AVFMT_GLOBALHEADER ) {
data_enc - > flags | = CODEC_FLAG_GLOBAL_HEADER ;
}
data_disable = 0 ;
return ost ;
}
static OutputStream * new_subtitle_stream ( AVFormatContext * oc )
{
AVStream * st ;
OutputStream * ost ;
AVCodecContext * subtitle_enc ;
ost = new_output_stream ( oc , AVMEDIA_TYPE_SUBTITLE ) ;
st = ost - > st ;
subtitle_enc = st - > codec ;
ost - > bitstream_filters = subtitle_bitstream_filters ;
subtitle_bitstream_filters = NULL ;
subtitle_enc - > codec_type = AVMEDIA_TYPE_SUBTITLE ;
if ( subtitle_codec_tag )
subtitle_enc - > codec_tag = subtitle_codec_tag ;
if ( oc - > oformat - > flags & AVFMT_GLOBALHEADER ) {
subtitle_enc - > flags | = CODEC_FLAG_GLOBAL_HEADER ;
}
if ( subtitle_language ) {
av_dict_set ( & st - > metadata , " language " , subtitle_language , 0 ) ;
av_freep ( & subtitle_language ) ;
}
subtitle_disable = 0 ;
return ost ;
}
/* arg format is "output-stream-index:streamid-value". */
static int opt_streamid ( const char * opt , const char * arg )
{
int idx ;
char * p ;
char idx_str [ 16 ] ;
av_strlcpy ( idx_str , arg , sizeof ( idx_str ) ) ;
p = strchr ( idx_str , ' : ' ) ;
if ( ! p ) {
fprintf ( stderr ,
" Invalid value '%s' for option '%s', required syntax is 'index:value' \n " ,
arg , opt ) ;
exit_program ( 1 ) ;
}
* p + + = ' \0 ' ;
idx = parse_number_or_die ( opt , idx_str , OPT_INT , 0 , INT_MAX ) ;
streamid_map = grow_array ( streamid_map , sizeof ( * streamid_map ) , & nb_streamid_map , idx + 1 ) ;
streamid_map [ idx ] = parse_number_or_die ( opt , p , OPT_INT , 0 , INT_MAX ) ;
return 0 ;
}
static int copy_chapters ( int infile , int outfile )
{
AVFormatContext * is = input_files [ infile ] . ctx ;
AVFormatContext * os = output_files [ outfile ] . ctx ;
int i ;
for ( i = 0 ; i < is - > nb_chapters ; i + + ) {
AVChapter * in_ch = is - > chapters [ i ] , * out_ch ;
int64_t ts_off = av_rescale_q ( start_time - input_files [ infile ] . ts_offset ,
AV_TIME_BASE_Q , in_ch - > time_base ) ;
int64_t rt = ( recording_time = = INT64_MAX ) ? INT64_MAX :
av_rescale_q ( recording_time , AV_TIME_BASE_Q , in_ch - > time_base ) ;
if ( in_ch - > end < ts_off )
continue ;
if ( rt ! = INT64_MAX & & in_ch - > start > rt + ts_off )
break ;
out_ch = av_mallocz ( sizeof ( AVChapter ) ) ;
if ( ! out_ch )
return AVERROR ( ENOMEM ) ;
out_ch - > id = in_ch - > id ;
out_ch - > time_base = in_ch - > time_base ;
out_ch - > start = FFMAX ( 0 , in_ch - > start - ts_off ) ;
out_ch - > end = FFMIN ( rt , in_ch - > end - ts_off ) ;
if ( metadata_chapters_autocopy )
av_dict_copy ( & out_ch - > metadata , in_ch - > metadata , 0 ) ;
os - > nb_chapters + + ;
os - > chapters = av_realloc ( os - > chapters , sizeof ( AVChapter ) * os - > nb_chapters ) ;
if ( ! os - > chapters )
return AVERROR ( ENOMEM ) ;
os - > chapters [ os - > nb_chapters - 1 ] = out_ch ;
}
return 0 ;
}
static int read_avserver_streams ( AVFormatContext * s , const char * filename )
{
int i , err ;
AVFormatContext * ic = NULL ;
err = avformat_open_input ( & ic , filename , NULL , NULL ) ;
if ( err < 0 )
return err ;
/* copy stream format */
for ( i = 0 ; i < ic - > nb_streams ; i + + ) {
AVStream * st ;
OutputStream * ost ;
AVCodec * codec ;
codec = avcodec_find_encoder ( ic - > streams [ i ] - > codec - > codec_id ) ;
ost = new_output_stream ( s , codec - > type ) ;
st = ost - > st ;
// FIXME: a more elegant solution is needed
memcpy ( st , ic - > streams [ i ] , sizeof ( AVStream ) ) ;
st - > info = NULL ;
avcodec_copy_context ( st - > codec , ic - > streams [ i ] - > codec ) ;
if ( st - > codec - > codec_type = = AVMEDIA_TYPE_AUDIO & & ! st - > stream_copy )
choose_sample_fmt ( st , codec ) ;
else if ( st - > codec - > codec_type = = AVMEDIA_TYPE_VIDEO & & ! st - > stream_copy )
choose_pixel_fmt ( st , codec ) ;
}
av_close_input_file ( ic ) ;
return 0 ;
}
static void opt_output_file ( const char * filename )
{
AVFormatContext * oc ;
int i , err ;
AVOutputFormat * file_oformat ;
OutputStream * ost ;
InputStream * ist ;
if ( ! strcmp ( filename , " - " ) )
filename = " pipe: " ;
oc = avformat_alloc_context ( ) ;
if ( ! oc ) {
print_error ( filename , AVERROR ( ENOMEM ) ) ;
exit_program ( 1 ) ;
}
if ( last_asked_format ) {
file_oformat = av_guess_format ( last_asked_format , NULL , NULL ) ;
if ( ! file_oformat ) {
fprintf ( stderr , " Requested output format '%s' is not a suitable output format \n " , last_asked_format ) ;
exit_program ( 1 ) ;
}
last_asked_format = NULL ;
} else {
file_oformat = av_guess_format ( NULL , filename , NULL ) ;
if ( ! file_oformat ) {
fprintf ( stderr , " Unable to find a suitable output format for '%s' \n " ,
filename ) ;
exit_program ( 1 ) ;
}
}
oc - > oformat = file_oformat ;
av_strlcpy ( oc - > filename , filename , sizeof ( oc - > filename ) ) ;
if ( ! strcmp ( file_oformat - > name , " ffm " ) & &
av_strstart ( filename , " http: " , NULL ) ) {
/* special case for files sent to avserver: we get the stream
parameters from avserver */
int err = read_avserver_streams ( oc , filename ) ;
if ( err < 0 ) {
print_error ( filename , err ) ;
exit_program ( 1 ) ;
}
} else if ( ! nb_stream_maps ) {
/* pick the "best" stream of each type */
# define NEW_STREAM(type, index)\
if ( index > = 0 ) { \
ost = new_ # # type # # _stream ( oc ) ; \
ost - > source_index = index ; \
ost - > sync_ist = & input_streams [ index ] ; \
input_streams [ index ] . discard = 0 ; \
}
/* video: highest resolution */
if ( ! video_disable & & oc - > oformat - > video_codec ! = CODEC_ID_NONE ) {
int area = 0 , idx = - 1 ;
for ( i = 0 ; i < nb_input_streams ; i + + ) {
ist = & input_streams [ i ] ;
if ( ist - > st - > codec - > codec_type = = AVMEDIA_TYPE_VIDEO & &
ist - > st - > codec - > width * ist - > st - > codec - > height > area ) {
area = ist - > st - > codec - > width * ist - > st - > codec - > height ;
idx = i ;
}
}
NEW_STREAM ( video , idx ) ;
}
/* audio: most channels */
if ( ! audio_disable & & oc - > oformat - > audio_codec ! = CODEC_ID_NONE ) {
int channels = 0 , idx = - 1 ;
for ( i = 0 ; i < nb_input_streams ; i + + ) {
ist = & input_streams [ i ] ;
if ( ist - > st - > codec - > codec_type = = AVMEDIA_TYPE_AUDIO & &
ist - > st - > codec - > channels > channels ) {
channels = ist - > st - > codec - > channels ;
idx = i ;
}
}
NEW_STREAM ( audio , idx ) ;
}
/* subtitles: pick first */
if ( ! subtitle_disable & & oc - > oformat - > subtitle_codec ! = CODEC_ID_NONE ) {
for ( i = 0 ; i < nb_input_streams ; i + + )
if ( input_streams [ i ] . st - > codec - > codec_type = = AVMEDIA_TYPE_SUBTITLE ) {
NEW_STREAM ( subtitle , i ) ;
break ;
}
}
/* do something with data? */
} else {
for ( i = 0 ; i < nb_stream_maps ; i + + ) {
StreamMap * map = & stream_maps [ i ] ;
if ( map - > disabled )
continue ;
ist = & input_streams [ input_files [ map - > file_index ] . ist_index + map - > stream_index ] ;
switch ( ist - > st - > codec - > codec_type ) {
case AVMEDIA_TYPE_VIDEO : ost = new_video_stream ( oc ) ; break ;
case AVMEDIA_TYPE_AUDIO : ost = new_audio_stream ( oc ) ; break ;
case AVMEDIA_TYPE_SUBTITLE : ost = new_subtitle_stream ( oc ) ; break ;
case AVMEDIA_TYPE_DATA : ost = new_data_stream ( oc ) ; break ;
default :
av_log ( NULL , AV_LOG_ERROR , " Cannot map stream #%d.%d - unsupported type. \n " ,
map - > file_index , map - > stream_index ) ;
exit_program ( 1 ) ;
}
ost - > source_index = input_files [ map - > file_index ] . ist_index + map - > stream_index ;
ost - > sync_ist = & input_streams [ input_files [ map - > sync_file_index ] . ist_index +
map - > sync_stream_index ] ;
ist - > discard = 0 ;
}
}
av_dict_copy ( & oc - > metadata , metadata , 0 ) ;
av_dict_free ( & metadata ) ;
output_files = grow_array ( output_files , sizeof ( * output_files ) , & nb_output_files , nb_output_files + 1 ) ;
output_files [ nb_output_files - 1 ] . ctx = oc ;
output_files [ nb_output_files - 1 ] . ost_index = nb_output_streams - oc - > nb_streams ;
output_files [ nb_output_files - 1 ] . recording_time = recording_time ;
output_files [ nb_output_files - 1 ] . start_time = start_time ;
av_dict_copy ( & output_files [ nb_output_files - 1 ] . opts , format_opts , 0 ) ;
/* check filename in case of an image number is expected */
if ( oc - > oformat - > flags & AVFMT_NEEDNUMBER ) {
if ( ! av_filename_number_test ( oc - > filename ) ) {
print_error ( oc - > filename , AVERROR ( EINVAL ) ) ;
exit_program ( 1 ) ;
}
}
if ( ! ( oc - > oformat - > flags & AVFMT_NOFILE ) ) {
/* test if it already exists to avoid loosing precious files */
if ( ! file_overwrite & &
( strchr ( filename , ' : ' ) = = NULL | |
filename [ 1 ] = = ' : ' | |
av_strstart ( filename , " file: " , NULL ) ) ) {
if ( avio_check ( filename , 0 ) = = 0 ) {
if ( ! using_stdin ) {
fprintf ( stderr , " File '%s' already exists. Overwrite ? [y/N] " , filename ) ;
fflush ( stderr ) ;
if ( ! read_yesno ( ) ) {
fprintf ( stderr , " Not overwriting - exiting \n " ) ;
exit_program ( 1 ) ;
}
}
else {
fprintf ( stderr , " File '%s' already exists. Exiting. \n " , filename ) ;
exit_program ( 1 ) ;
}
}
}
/* open the file */
if ( ( err = avio_open ( & oc - > pb , filename , AVIO_FLAG_WRITE ) ) < 0 ) {
print_error ( filename , err ) ;
exit_program ( 1 ) ;
}
}
oc - > preload = ( int ) ( mux_preload * AV_TIME_BASE ) ;
oc - > max_delay = ( int ) ( mux_max_delay * AV_TIME_BASE ) ;
oc - > flags | = AVFMT_FLAG_NONBLOCK ;
/* copy chapters */
if ( chapters_input_file > = nb_input_files ) {
if ( chapters_input_file = = INT_MAX ) {
/* copy chapters from the first input file that has them*/
chapters_input_file = - 1 ;
for ( i = 0 ; i < nb_input_files ; i + + )
if ( input_files [ i ] . ctx - > nb_chapters ) {
chapters_input_file = i ;
break ;
}
} else {
av_log ( NULL , AV_LOG_ERROR , " Invalid input file index %d in chapter mapping. \n " ,
chapters_input_file ) ;
exit_program ( 1 ) ;
}
}
if ( chapters_input_file > = 0 )
copy_chapters ( chapters_input_file , nb_output_files - 1 ) ;
/* copy metadata */
for ( i = 0 ; i < nb_meta_data_maps ; i + + ) {
AVFormatContext * files [ 2 ] ;
AVDictionary * * meta [ 2 ] ;
int j ;
# define METADATA_CHECK_INDEX(index, nb_elems, desc)\
if ( ( index ) < 0 | | ( index ) > = ( nb_elems ) ) { \
av_log ( NULL , AV_LOG_ERROR , " Invalid %s index %d while processing metadata maps \n " , \
( desc ) , ( index ) ) ; \
exit_program ( 1 ) ; \
}
int in_file_index = meta_data_maps [ i ] [ 1 ] . file ;
if ( in_file_index < 0 )
continue ;
METADATA_CHECK_INDEX ( in_file_index , nb_input_files , " input file " )
files [ 0 ] = oc ;
files [ 1 ] = input_files [ in_file_index ] . ctx ;
for ( j = 0 ; j < 2 ; j + + ) {
MetadataMap * map = & meta_data_maps [ i ] [ j ] ;
switch ( map - > type ) {
case ' g ' :
meta [ j ] = & files [ j ] - > metadata ;
break ;
case ' s ' :
METADATA_CHECK_INDEX ( map - > index , files [ j ] - > nb_streams , " stream " )
meta [ j ] = & files [ j ] - > streams [ map - > index ] - > metadata ;
break ;
case ' c ' :
METADATA_CHECK_INDEX ( map - > index , files [ j ] - > nb_chapters , " chapter " )
meta [ j ] = & files [ j ] - > chapters [ map - > index ] - > metadata ;
break ;
case ' p ' :
METADATA_CHECK_INDEX ( map - > index , files [ j ] - > nb_programs , " program " )
meta [ j ] = & files [ j ] - > programs [ map - > index ] - > metadata ;
break ;
}
}
av_dict_copy ( meta [ 0 ] , * meta [ 1 ] , AV_DICT_DONT_OVERWRITE ) ;
}
/* copy global metadata by default */
if ( metadata_global_autocopy & & nb_input_files )
av_dict_copy ( & oc - > metadata , input_files [ 0 ] . ctx - > metadata ,
AV_DICT_DONT_OVERWRITE ) ;
if ( metadata_streams_autocopy )
for ( i = output_files [ nb_output_files - 1 ] . ost_index ; i < nb_output_streams ; i + + ) {
InputStream * ist = & input_streams [ output_streams [ i ] . source_index ] ;
av_dict_copy ( & output_streams [ i ] . st - > metadata , ist - > st - > metadata , AV_DICT_DONT_OVERWRITE ) ;
}
frame_rate = ( AVRational ) { 0 , 0 } ;
frame_width = 0 ;
frame_height = 0 ;
audio_sample_rate = 0 ;
audio_channels = 0 ;
audio_sample_fmt = AV_SAMPLE_FMT_NONE ;
chapters_input_file = INT_MAX ;
recording_time = INT64_MAX ;
start_time = 0 ;
av_freep ( & meta_data_maps ) ;
nb_meta_data_maps = 0 ;
metadata_global_autocopy = 1 ;
metadata_streams_autocopy = 1 ;
metadata_chapters_autocopy = 1 ;
av_freep ( & stream_maps ) ;
nb_stream_maps = 0 ;
av_dict_free ( & codec_names ) ;
av_freep ( & forced_key_frames ) ;
uninit_opts ( ) ;
init_opts ( ) ;
}
/* same option as mencoder */
static int opt_pass ( const char * opt , const char * arg )
{
do_pass = parse_number_or_die ( opt , arg , OPT_INT , 1 , 2 ) ;
return 0 ;
}
static int64_t getutime ( void )
{
# if HAVE_GETRUSAGE
struct rusage rusage ;
getrusage ( RUSAGE_SELF , & rusage ) ;
return ( rusage . ru_utime . tv_sec * 1000000LL ) + rusage . ru_utime . tv_usec ;
# elif HAVE_GETPROCESSTIMES
HANDLE proc ;
FILETIME c , e , k , u ;
proc = GetCurrentProcess ( ) ;
GetProcessTimes ( proc , & c , & e , & k , & u ) ;
return ( ( int64_t ) u . dwHighDateTime < < 32 | u . dwLowDateTime ) / 10 ;
# else
return av_gettime ( ) ;
# endif
}
static int64_t getmaxrss ( void )
{
# if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
struct rusage rusage ;
getrusage ( RUSAGE_SELF , & rusage ) ;
return ( int64_t ) rusage . ru_maxrss * 1024 ;
# elif HAVE_GETPROCESSMEMORYINFO
HANDLE proc ;
PROCESS_MEMORY_COUNTERS memcounters ;
proc = GetCurrentProcess ( ) ;
memcounters . cb = sizeof ( memcounters ) ;
GetProcessMemoryInfo ( proc , & memcounters , sizeof ( memcounters ) ) ;
return memcounters . PeakPagefileUsage ;
# else
return 0 ;
# endif
}
static void parse_matrix_coeffs ( uint16_t * dest , const char * str )
{
int i ;
const char * p = str ;
for ( i = 0 ; ; i + + ) {
dest [ i ] = atoi ( p ) ;
if ( i = = 63 )
break ;
p = strchr ( p , ' , ' ) ;
if ( ! p ) {
fprintf ( stderr , " Syntax error in matrix \" %s \" at coeff %d \n " , str , i ) ;
exit_program ( 1 ) ;
}
p + + ;
}
}
static void opt_inter_matrix ( const char * arg )
{
inter_matrix = av_mallocz ( sizeof ( uint16_t ) * 64 ) ;
parse_matrix_coeffs ( inter_matrix , arg ) ;
}
static void opt_intra_matrix ( const char * arg )
{
intra_matrix = av_mallocz ( sizeof ( uint16_t ) * 64 ) ;
parse_matrix_coeffs ( intra_matrix , arg ) ;
}
static void show_usage ( void )
{
printf ( " Hyper fast Audio and Video encoder \n " ) ;
printf ( " usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}... \n " , program_name ) ;
printf ( " \n " ) ;
}
static void show_help ( void )
{
AVCodec * c ;
AVOutputFormat * oformat = NULL ;
AVInputFormat * iformat = NULL ;
av_log_set_callback ( log_callback_help ) ;
show_usage ( ) ;
show_help_options ( options , " Main options: \n " ,
OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB , 0 ) ;
show_help_options ( options , " \n Advanced options: \n " ,
OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB ,
OPT_EXPERT ) ;
show_help_options ( options , " \n Video options: \n " ,
OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB ,
OPT_VIDEO ) ;
show_help_options ( options , " \n Advanced Video options: \n " ,
OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB ,
OPT_VIDEO | OPT_EXPERT ) ;
show_help_options ( options , " \n Audio options: \n " ,
OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB ,
OPT_AUDIO ) ;
show_help_options ( options , " \n Advanced Audio options: \n " ,
OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB ,
OPT_AUDIO | OPT_EXPERT ) ;
show_help_options ( options , " \n Subtitle options: \n " ,
OPT_SUBTITLE | OPT_GRAB ,
OPT_SUBTITLE ) ;
show_help_options ( options , " \n Audio/Video grab options: \n " ,
OPT_GRAB ,
OPT_GRAB ) ;
printf ( " \n " ) ;
av_opt_show2 ( avcodec_opts [ 0 ] , NULL , AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_DECODING_PARAM , 0 ) ;
printf ( " \n " ) ;
/* individual codec options */
c = NULL ;
while ( ( c = av_codec_next ( c ) ) ) {
if ( c - > priv_class ) {
av_opt_show2 ( & c - > priv_class , NULL , AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_DECODING_PARAM , 0 ) ;
printf ( " \n " ) ;
}
}
av_opt_show2 ( avformat_opts , NULL , AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_DECODING_PARAM , 0 ) ;
printf ( " \n " ) ;
/* individual muxer options */
while ( ( oformat = av_oformat_next ( oformat ) ) ) {
if ( oformat - > priv_class ) {
av_opt_show2 ( & oformat - > priv_class , NULL , AV_OPT_FLAG_ENCODING_PARAM , 0 ) ;
printf ( " \n " ) ;
}
}
/* individual demuxer options */
while ( ( iformat = av_iformat_next ( iformat ) ) ) {
if ( iformat - > priv_class ) {
av_opt_show2 ( & iformat - > priv_class , NULL , AV_OPT_FLAG_DECODING_PARAM , 0 ) ;
printf ( " \n " ) ;
}
}
av_opt_show2 ( sws_opts , NULL , AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_DECODING_PARAM , 0 ) ;
}
static int opt_target ( const char * opt , const char * arg )
{
enum { PAL , NTSC , FILM , UNKNOWN } norm = UNKNOWN ;
static const char * const frame_rates [ ] = { " 25 " , " 30000/1001 " , " 24000/1001 " } ;
if ( ! strncmp ( arg , " pal- " , 4 ) ) {
norm = PAL ;
arg + = 4 ;
} else if ( ! strncmp ( arg , " ntsc- " , 5 ) ) {
norm = NTSC ;
arg + = 5 ;
} else if ( ! strncmp ( arg , " film- " , 5 ) ) {
norm = FILM ;
arg + = 5 ;
} else {
int fr ;
/* Calculate FR via float to avoid int overflow */
fr = ( int ) ( frame_rate . num * 1000.0 / frame_rate . den ) ;
if ( fr = = 25000 ) {
norm = PAL ;
} else if ( ( fr = = 29970 ) | | ( fr = = 23976 ) ) {
norm = NTSC ;
} else {
/* Try to determine PAL/NTSC by peeking in the input files */
if ( nb_input_files ) {
int i , j ;
for ( j = 0 ; j < nb_input_files ; j + + ) {
for ( i = 0 ; i < input_files [ j ] . ctx - > nb_streams ; i + + ) {
AVCodecContext * c = input_files [ j ] . ctx - > streams [ i ] - > codec ;
if ( c - > codec_type ! = AVMEDIA_TYPE_VIDEO )
continue ;
fr = c - > time_base . den * 1000 / c - > time_base . num ;
if ( fr = = 25000 ) {
norm = PAL ;
break ;
} else if ( ( fr = = 29970 ) | | ( fr = = 23976 ) ) {
norm = NTSC ;
break ;
}
}
if ( norm ! = UNKNOWN )
break ;
}
}
}
if ( verbose > 0 & & norm ! = UNKNOWN )
fprintf ( stderr , " Assuming %s for target. \n " , norm = = PAL ? " PAL " : " NTSC " ) ;
}
if ( norm = = UNKNOWN ) {
fprintf ( stderr , " Could not determine norm (PAL/NTSC/NTSC-Film) for target. \n " ) ;
fprintf ( stderr , " Please prefix target with \" pal- \" , \" ntsc- \" or \" film- \" , \n " ) ;
fprintf ( stderr , " or set a framerate with \" -r xxx \" . \n " ) ;
exit_program ( 1 ) ;
}
if ( ! strcmp ( arg , " vcd " ) ) {
opt_codec ( " c:v " , " mpeg1video " ) ;
opt_codec ( " c:a " , " mp2 " ) ;
opt_format ( " f " , " vcd " ) ;
opt_frame_size ( " s " , norm = = PAL ? " 352x288 " : " 352x240 " ) ;
opt_frame_rate ( " r " , frame_rates [ norm ] ) ;
opt_default ( " g " , norm = = PAL ? " 15 " : " 18 " ) ;
opt_default ( " b " , " 1150000 " ) ;
opt_default ( " maxrate " , " 1150000 " ) ;
opt_default ( " minrate " , " 1150000 " ) ;
opt_default ( " bufsize " , " 327680 " ) ; // 40*1024*8;
opt_default ( " b:a " , " 224000 " ) ;
audio_sample_rate = 44100 ;
audio_channels = 2 ;
opt_default ( " packetsize " , " 2324 " ) ;
opt_default ( " muxrate " , " 1411200 " ) ; // 2352 * 75 * 8;
/* We have to offset the PTS, so that it is consistent with the SCR.
SCR starts at 36000 , but the first two packs contain only padding
and the first pack from the other stream , respectively , may also have
been written before .
So the real data starts at SCR 36000 + 3 * 1200. */
mux_preload = ( 36000 + 3 * 1200 ) / 90000.0 ; //0.44
} else if ( ! strcmp ( arg , " svcd " ) ) {
opt_codec ( " c:v " , " mpeg2video " ) ;
opt_codec ( " c:a " , " mp2 " ) ;
opt_format ( " f " , " svcd " ) ;
opt_frame_size ( " s " , norm = = PAL ? " 480x576 " : " 480x480 " ) ;
opt_frame_rate ( " r " , frame_rates [ norm ] ) ;
opt_default ( " g " , norm = = PAL ? " 15 " : " 18 " ) ;
opt_default ( " b " , " 2040000 " ) ;
opt_default ( " maxrate " , " 2516000 " ) ;
opt_default ( " minrate " , " 0 " ) ; //1145000;
opt_default ( " bufsize " , " 1835008 " ) ; //224*1024*8;
opt_default ( " flags " , " +scan_offset " ) ;
opt_default ( " b:a " , " 224000 " ) ;
audio_sample_rate = 44100 ;
opt_default ( " packetsize " , " 2324 " ) ;
} else if ( ! strcmp ( arg , " dvd " ) ) {
opt_codec ( " c:v " , " mpeg2video " ) ;
opt_codec ( " c:a " , " ac3 " ) ;
opt_format ( " f " , " dvd " ) ;
opt_frame_size ( " vcodec " , norm = = PAL ? " 720x576 " : " 720x480 " ) ;
opt_frame_rate ( " r " , frame_rates [ norm ] ) ;
opt_default ( " g " , norm = = PAL ? " 15 " : " 18 " ) ;
opt_default ( " b " , " 6000000 " ) ;
opt_default ( " maxrate " , " 9000000 " ) ;
opt_default ( " minrate " , " 0 " ) ; //1500000;
opt_default ( " bufsize " , " 1835008 " ) ; //224*1024*8;
opt_default ( " packetsize " , " 2048 " ) ; // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
opt_default ( " muxrate " , " 10080000 " ) ; // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
opt_default ( " b:a " , " 448000 " ) ;
audio_sample_rate = 48000 ;
} else if ( ! strncmp ( arg , " dv " , 2 ) ) {
opt_format ( " f " , " dv " ) ;
opt_frame_size ( " s " , norm = = PAL ? " 720x576 " : " 720x480 " ) ;
opt_frame_pix_fmt ( " pix_fmt " , ! strncmp ( arg , " dv50 " , 4 ) ? " yuv422p " :
norm = = PAL ? " yuv420p " : " yuv411p " ) ;
opt_frame_rate ( " r " , frame_rates [ norm ] ) ;
audio_sample_rate = 48000 ;
audio_channels = 2 ;
} else {
fprintf ( stderr , " Unknown target: %s \n " , arg ) ;
return AVERROR ( EINVAL ) ;
}
return 0 ;
}
static int opt_vstats_file ( const char * opt , const char * arg )
{
av_free ( vstats_filename ) ;
vstats_filename = av_strdup ( arg ) ;
return 0 ;
}
static int opt_vstats ( const char * opt , const char * arg )
{
char filename [ 40 ] ;
time_t today2 = time ( NULL ) ;
struct tm * today = localtime ( & today2 ) ;
snprintf ( filename , sizeof ( filename ) , " vstats_%02d%02d%02d.log " , today - > tm_hour , today - > tm_min ,
today - > tm_sec ) ;
return opt_vstats_file ( opt , filename ) ;
}
static int opt_bsf ( const char * opt , const char * arg )
{
AVBitStreamFilterContext * bsfc = av_bitstream_filter_init ( arg ) ; //FIXME split name and args for filter at '='
AVBitStreamFilterContext * * bsfp ;
if ( ! bsfc ) {
fprintf ( stderr , " Unknown bitstream filter %s \n " , arg ) ;
exit_program ( 1 ) ;
}
bsfp = * opt = = ' v ' ? & video_bitstream_filters :
* opt = = ' a ' ? & audio_bitstream_filters :
& subtitle_bitstream_filters ;
while ( * bsfp )
bsfp = & ( * bsfp ) - > next ;
* bsfp = bsfc ;
return 0 ;
}
static const OptionDef options [ ] = {
/* main options */
# include "cmdutils_common_opts.h"
{ " f " , HAS_ARG , { ( void * ) opt_format } , " force format " , " fmt " } ,
{ " i " , HAS_ARG , { ( void * ) opt_input_file } , " input file name " , " filename " } ,
{ " y " , OPT_BOOL , { ( void * ) & file_overwrite } , " overwrite output files " } ,
{ " c " , HAS_ARG , { ( void * ) opt_codec } , " codec name " , " codec " } ,
{ " codec " , HAS_ARG , { ( void * ) opt_codec } , " codec name " , " codec " } ,
{ " map " , HAS_ARG | OPT_EXPERT , { ( void * ) opt_map } , " set input stream mapping " , " file.stream[:syncfile.syncstream] " } ,
{ " map_metadata " , HAS_ARG | OPT_EXPERT , { ( void * ) opt_map_metadata } , " set metadata information of outfile from infile " ,
" outfile[,metadata]:infile[,metadata] " } ,
{ " map_chapters " , OPT_INT | HAS_ARG | OPT_EXPERT , { ( void * ) & chapters_input_file } , " set chapters mapping " , " input_file_index " } ,
{ " t " , HAS_ARG , { ( void * ) opt_recording_time } , " record or transcode \" duration \" seconds of audio/video " , " duration " } ,
{ " fs " , HAS_ARG | OPT_INT64 , { ( void * ) & limit_filesize } , " set the limit file size in bytes " , " limit_size " } , //
{ " ss " , HAS_ARG , { ( void * ) opt_start_time } , " set the start time offset " , " time_off " } ,
{ " itsoffset " , HAS_ARG , { ( void * ) opt_input_ts_offset } , " set the input ts offset " , " time_off " } ,
{ " itsscale " , HAS_ARG , { ( void * ) opt_input_ts_scale } , " set the input ts scale " , " scale " } ,
{ " metadata " , HAS_ARG , { ( void * ) opt_metadata } , " add metadata " , " string=string " } ,
{ " dframes " , OPT_INT | HAS_ARG , { ( void * ) & max_frames [ AVMEDIA_TYPE_DATA ] } , " set the number of data frames to record " , " number " } ,
{ " benchmark " , OPT_BOOL | OPT_EXPERT , { ( void * ) & do_benchmark } ,
" add timings for benchmarking " } ,
{ " timelimit " , HAS_ARG , { ( void * ) opt_timelimit } , " set max runtime in seconds " , " limit " } ,
{ " dump " , OPT_BOOL | OPT_EXPERT , { ( void * ) & do_pkt_dump } ,
" dump each input packet " } ,
{ " hex " , OPT_BOOL | OPT_EXPERT , { ( void * ) & do_hex_dump } ,
" when dumping packets, also dump the payload " } ,
{ " re " , OPT_BOOL | OPT_EXPERT , { ( void * ) & rate_emu } , " read input at native frame rate " , " " } ,
{ " v " , HAS_ARG , { ( void * ) opt_verbose } , " set the verbosity level " , " number " } ,
{ " target " , HAS_ARG , { ( void * ) opt_target } , " specify target file type ( \" vcd \" , \" svcd \" , \" dvd \" , \" dv \" , \" dv50 \" , \" pal-vcd \" , \" ntsc-svcd \" , ...) " , " type " } ,
{ " threads " , HAS_ARG | OPT_EXPERT , { ( void * ) opt_thread_count } , " thread count " , " count " } ,
{ " vsync " , HAS_ARG | OPT_INT | OPT_EXPERT , { ( void * ) & video_sync_method } , " video sync method " , " " } ,
{ " async " , HAS_ARG | OPT_INT | OPT_EXPERT , { ( void * ) & audio_sync_method } , " audio sync method " , " " } ,
{ " adrift_threshold " , HAS_ARG | OPT_FLOAT | OPT_EXPERT , { ( void * ) & audio_drift_threshold } , " audio drift threshold " , " threshold " } ,
{ " copyts " , OPT_BOOL | OPT_EXPERT , { ( void * ) & copy_ts } , " copy timestamps " } ,
{ " copytb " , OPT_BOOL | OPT_EXPERT , { ( void * ) & copy_tb } , " copy input stream time base when stream copying " } ,
{ " shortest " , OPT_BOOL | OPT_EXPERT , { ( void * ) & opt_shortest } , " finish encoding within shortest input " } , //
{ " dts_delta_threshold " , HAS_ARG | OPT_FLOAT | OPT_EXPERT , { ( void * ) & dts_delta_threshold } , " timestamp discontinuity delta threshold " , " threshold " } ,
{ " programid " , HAS_ARG | OPT_INT | OPT_EXPERT , { ( void * ) & opt_programid } , " desired program number " , " " } ,
{ " xerror " , OPT_BOOL , { ( void * ) & exit_on_error } , " exit on error " , " error " } ,
{ " copyinkf " , OPT_BOOL | OPT_EXPERT , { ( void * ) & copy_initial_nonkeyframes } , " copy initial non-keyframes " } ,
/* video options */
{ " vframes " , OPT_INT | HAS_ARG | OPT_VIDEO , { ( void * ) & max_frames [ AVMEDIA_TYPE_VIDEO ] } , " set the number of video frames to record " , " number " } ,
{ " r " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_frame_rate } , " set frame rate (Hz value, fraction or abbreviation) " , " rate " } ,
{ " s " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_frame_size } , " set frame size (WxH or abbreviation) " , " size " } ,
{ " aspect " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_frame_aspect_ratio } , " set aspect ratio (4:3, 16:9 or 1.3333, 1.7777) " , " aspect " } ,
{ " pix_fmt " , HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) opt_frame_pix_fmt } , " set pixel format, 'list' as argument shows all the pixel formats supported " , " format " } ,
{ " croptop " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_frame_crop } , " Removed, use the crop filter instead " , " size " } ,
{ " cropbottom " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_frame_crop } , " Removed, use the crop filter instead " , " size " } ,
{ " cropleft " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_frame_crop } , " Removed, use the crop filter instead " , " size " } ,
{ " cropright " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_frame_crop } , " Removed, use the crop filter instead " , " size " } ,
{ " padtop " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_pad } , " Removed, use the pad filter instead " , " size " } ,
{ " padbottom " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_pad } , " Removed, use the pad filter instead " , " size " } ,
{ " padleft " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_pad } , " Removed, use the pad filter instead " , " size " } ,
{ " padright " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_pad } , " Removed, use the pad filter instead " , " size " } ,
{ " padcolor " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_pad } , " Removed, use the pad filter instead " , " color " } ,
{ " intra " , OPT_BOOL | OPT_EXPERT | OPT_VIDEO , { ( void * ) & intra_only } , " use only intra frames " } ,
{ " vn " , OPT_BOOL | OPT_VIDEO , { ( void * ) & video_disable } , " disable video " } ,
{ " vdt " , OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) & video_discard } , " discard threshold " , " n " } ,
{ " qscale " , HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) opt_qscale } , " use fixed video quantizer scale (VBR) " , " q " } ,
{ " rc_override " , HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) opt_video_rc_override_string } , " rate control override for specific intervals " , " override " } ,
{ " vcodec " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_video_codec } , " force video codec ('copy' to copy stream) " , " codec " } ,
{ " me_threshold " , HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) opt_me_threshold } , " motion estimaton threshold " , " threshold " } ,
{ " same_quant " , OPT_BOOL | OPT_VIDEO , { ( void * ) & same_quant } ,
" use same quantizer as source (implies VBR) " } ,
{ " pass " , HAS_ARG | OPT_VIDEO , { ( void * ) opt_pass } , " select the pass number (1 or 2) " , " n " } ,
{ " passlogfile " , HAS_ARG | OPT_STRING | OPT_VIDEO , { ( void * ) & pass_logfilename_prefix } , " select two pass log file name prefix " , " prefix " } ,
{ " deinterlace " , OPT_BOOL | OPT_EXPERT | OPT_VIDEO , { ( void * ) & do_deinterlace } ,
" deinterlace pictures " } ,
{ " psnr " , OPT_BOOL | OPT_EXPERT | OPT_VIDEO , { ( void * ) & do_psnr } , " calculate PSNR of compressed frames " } ,
{ " vstats " , OPT_EXPERT | OPT_VIDEO , { ( void * ) & opt_vstats } , " dump video coding statistics to file " } ,
{ " vstats_file " , HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) opt_vstats_file } , " dump video coding statistics to file " , " file " } ,
# if CONFIG_AVFILTER
{ " vf " , OPT_STRING | HAS_ARG , { ( void * ) & vfilters } , " video filters " , " filter list " } ,
# endif
{ " intra_matrix " , HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) opt_intra_matrix } , " specify intra matrix coeffs " , " matrix " } ,
{ " inter_matrix " , HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) opt_inter_matrix } , " specify inter matrix coeffs " , " matrix " } ,
{ " top " , HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) opt_top_field_first } , " top=1/bottom=0/auto=-1 field first " , " " } ,
{ " dc " , OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) & intra_dc_precision } , " intra_dc_precision " , " precision " } ,
{ " vtag " , HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) opt_codec_tag } , " force video tag/fourcc " , " fourcc/tag " } ,
{ " vlang " , HAS_ARG | OPT_STRING | OPT_VIDEO , { ( void * ) & video_language } , " set the ISO 639 language code (3 letters) of the current video stream " , " code " } ,
{ " qphist " , OPT_BOOL | OPT_EXPERT | OPT_VIDEO , { ( void * ) & qp_hist } , " show QP histogram " } ,
{ " force_fps " , OPT_BOOL | OPT_EXPERT | OPT_VIDEO , { ( void * ) & force_fps } , " force the selected framerate, disable the best supported framerate selection " } ,
{ " streamid " , HAS_ARG | OPT_EXPERT , { ( void * ) opt_streamid } , " set the value of an outfile streamid " , " streamIndex:value " } ,
{ " force_key_frames " , OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_VIDEO , { ( void * ) & forced_key_frames } , " force key frames at specified timestamps " , " timestamps " } ,
/* audio options */
{ " aframes " , OPT_INT | HAS_ARG | OPT_AUDIO , { ( void * ) & max_frames [ AVMEDIA_TYPE_AUDIO ] } , " set the number of audio frames to record " , " number " } ,
{ " aq " , OPT_FLOAT | HAS_ARG | OPT_AUDIO , { ( void * ) & audio_qscale } , " set audio quality (codec-specific) " , " quality " , } ,
{ " ar " , HAS_ARG | OPT_AUDIO , { ( void * ) opt_audio_rate } , " set audio sampling rate (in Hz) " , " rate " } ,
{ " ac " , HAS_ARG | OPT_AUDIO , { ( void * ) opt_audio_channels } , " set number of audio channels " , " channels " } ,
{ " an " , OPT_BOOL | OPT_AUDIO , { ( void * ) & audio_disable } , " disable audio " } ,
{ " acodec " , HAS_ARG | OPT_AUDIO , { ( void * ) opt_audio_codec } , " force audio codec ('copy' to copy stream) " , " codec " } ,
{ " atag " , HAS_ARG | OPT_EXPERT | OPT_AUDIO , { ( void * ) opt_codec_tag } , " force audio tag/fourcc " , " fourcc/tag " } ,
{ " vol " , OPT_INT | HAS_ARG | OPT_AUDIO , { ( void * ) & audio_volume } , " change audio volume (256=normal) " , " volume " } , //
{ " alang " , HAS_ARG | OPT_STRING | OPT_AUDIO , { ( void * ) & audio_language } , " set the ISO 639 language code (3 letters) of the current audio stream " , " code " } ,
{ " sample_fmt " , HAS_ARG | OPT_EXPERT | OPT_AUDIO , { ( void * ) opt_audio_sample_fmt } , " set sample format, 'list' as argument shows all the sample formats supported " , " format " } ,
/* subtitle options */
{ " sn " , OPT_BOOL | OPT_SUBTITLE , { ( void * ) & subtitle_disable } , " disable subtitle " } ,
{ " scodec " , HAS_ARG | OPT_SUBTITLE , { ( void * ) opt_subtitle_codec } , " force subtitle codec ('copy' to copy stream) " , " codec " } ,
{ " slang " , HAS_ARG | OPT_STRING | OPT_SUBTITLE , { ( void * ) & subtitle_language } , " set the ISO 639 language code (3 letters) of the current subtitle stream " , " code " } ,
{ " stag " , HAS_ARG | OPT_EXPERT | OPT_SUBTITLE , { ( void * ) opt_codec_tag } , " force subtitle tag/fourcc " , " fourcc/tag " } ,
/* grab options */
{ " isync " , OPT_BOOL | OPT_EXPERT | OPT_GRAB , { ( void * ) & input_sync } , " sync read on input " , " " } ,
/* muxer options */
{ " muxdelay " , OPT_FLOAT | HAS_ARG | OPT_EXPERT , { ( void * ) & mux_max_delay } , " set the maximum demux-decode delay " , " seconds " } ,
{ " muxpreload " , OPT_FLOAT | HAS_ARG | OPT_EXPERT , { ( void * ) & mux_preload } , " set the initial demux-decode delay " , " seconds " } ,
{ " absf " , HAS_ARG | OPT_AUDIO | OPT_EXPERT , { ( void * ) opt_bsf } , " " , " bitstream_filter " } ,
{ " vbsf " , HAS_ARG | OPT_VIDEO | OPT_EXPERT , { ( void * ) opt_bsf } , " " , " bitstream_filter " } ,
{ " sbsf " , HAS_ARG | OPT_SUBTITLE | OPT_EXPERT , { ( void * ) opt_bsf } , " " , " bitstream_filter " } ,
/* data codec support */
{ " dcodec " , HAS_ARG | OPT_DATA , { ( void * ) opt_data_codec } , " force data codec ('copy' to copy stream) " , " codec " } ,
{ " default " , HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT , { ( void * ) opt_default } , " generic catch all option " , " " } ,
{ NULL , } ,
} ;
int main ( int argc , char * * argv )
{
int64_t ti ;
av_log_set_flags ( AV_LOG_SKIP_REPEATED ) ;
avcodec_register_all ( ) ;
# if CONFIG_AVDEVICE
avdevice_register_all ( ) ;
# endif
# if CONFIG_AVFILTER
avfilter_register_all ( ) ;
# endif
av_register_all ( ) ;
avio_set_interrupt_cb ( decode_interrupt_cb ) ;
init_opts ( ) ;
show_banner ( ) ;
/* parse options */
parse_options ( argc , argv , options , opt_output_file ) ;
if ( nb_output_files < = 0 & & nb_input_files = = 0 ) {
show_usage ( ) ;
fprintf ( stderr , " Use -h to get full help or, even better, run 'man %s' \n " , program_name ) ;
exit_program ( 1 ) ;
}
/* file converter / grab */
if ( nb_output_files < = 0 ) {
fprintf ( stderr , " At least one output file must be specified \n " ) ;
exit_program ( 1 ) ;
}
if ( nb_input_files = = 0 ) {
fprintf ( stderr , " At least one input file must be specified \n " ) ;
exit_program ( 1 ) ;
}
ti = getutime ( ) ;
if ( transcode ( output_files , nb_output_files , input_files , nb_input_files ) < 0 )
exit_program ( 1 ) ;
ti = getutime ( ) - ti ;
if ( do_benchmark ) {
int maxrss = getmaxrss ( ) / 1024 ;
printf ( " bench: utime=%0.3fs maxrss=%ikB \n " , ti / 1000000.0 , maxrss ) ;
}
return exit_program ( 0 ) ;
}
