/* * ffmpeg main * Copyright (c) 2000-2003 Fabrice Bellard * * This file is part of FFmpeg. * * FFmpeg 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. * * FFmpeg 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 FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "config.h" #include #include #include #include #include #include #include #include #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" #include "libswresample/swresample.h" #include "libavformat/ffm.h" // not public API #if CONFIG_AVFILTER # include "libavfilter/avcodec.h" # include "libavfilter/avfilter.h" # include "libavfilter/avfiltergraph.h" # include "libavfilter/buffersink.h" # include "libavfilter/vsrc_buffer.h" #endif #if HAVE_SYS_RESOURCE_H #include #include #include #elif HAVE_GETPROCESSTIMES #include #endif #if HAVE_GETPROCESSMEMORYINFO #include #include #endif #if HAVE_SYS_SELECT_H #include #endif #if HAVE_TERMIOS_H #include #include #include #include #elif HAVE_KBHIT #include #endif #include #include "cmdutils.h" #include "libavutil/avassert.h" const char program_name[] = "ffmpeg"; 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; typedef struct { int file_idx, stream_idx, channel_idx; // input int ofile_idx, ostream_idx; // output } AudioChannelMap; /** * 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[]; #define MAX_STREAMS 1024 /* arbitrary sanity check value */ static int frame_bits_per_raw_sample = 0; static int video_discard = 0; static int same_quant = 0; static int do_deinterlace = 0; static int intra_dc_precision = 8; static int loop_input = 0; static int loop_output = AVFMT_NOOUTPUTLOOP; static int qp_hist = 0; static int intra_only = 0; static const char *video_codec_name = NULL; static const char *audio_codec_name = NULL; static const char *subtitle_codec_name = NULL; static int file_overwrite = 0; 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 const char *pass_logfilename_prefix; 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= 0; static int opt_shortest = 0; static char *vstats_filename; static FILE *vstats_file; static int audio_volume = 256; static int exit_on_error = 0; static int using_stdin = 0; static int run_as_daemon = 0; static volatile int received_nb_signals = 0; 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 float dts_delta_threshold = 10; static int print_stats = 1; static uint8_t *audio_buf; static uint8_t *audio_out; static unsigned int allocated_audio_out_size, allocated_audio_buf_size; static void *samples; static uint8_t *input_tmp= NULL; #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass" 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 */ 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 input_streams */ int buffer_size; /* current total buffer size */ int64_t ts_offset; int nb_streams; /* number of stream that ffmpeg is aware of; may be different from ctx.nb_streams if new streams appear during av_read_frame() */ int rate_emu; } InputFile; 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; int64_t max_frames; /* video only */ int video_resample; AVFrame resample_frame; /* temporary frame for image resampling */ struct SwsContext *img_resample_ctx; /* for image resampling */ int resample_height; int resample_width; int resample_pix_fmt; AVRational frame_rate; int force_fps; int top_field_first; 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; int audio_channels_map[SWR_CH_MAX]; ///< list of the channels id to pick from the source stream int audio_channels_mapped; ///< number of channels in audio_channels_map int resample_sample_fmt; int resample_channels; int resample_sample_rate; float rematrix_volume; AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */ FILE *logfile; struct SwrContext *swr; #if CONFIG_AVFILTER AVFilterContext *output_video_filter; AVFilterContext *input_video_filter; AVFilterBufferRef *picref; char *avfilter; AVFilterGraph *graph; #endif int64_t sws_flags; AVDictionary *opts; int is_past_recording_time; int stream_copy; const char *attachment_filename; int copy_initial_nonkeyframes; } OutputStream; #if HAVE_TERMIOS_H /* init terminal so that we can grab keys */ static struct termios oldtty; #endif 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 */ uint64_t limit_filesize; } 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; typedef struct OptionsContext { /* input/output options */ int64_t start_time; const char *format; SpecifierOpt *codec_names; int nb_codec_names; SpecifierOpt *audio_channels; int nb_audio_channels; SpecifierOpt *audio_sample_rate; int nb_audio_sample_rate; SpecifierOpt *rematrix_volume; int nb_rematrix_volume; SpecifierOpt *frame_rates; int nb_frame_rates; SpecifierOpt *frame_sizes; int nb_frame_sizes; SpecifierOpt *frame_pix_fmts; int nb_frame_pix_fmts; /* input options */ int64_t input_ts_offset; int rate_emu; SpecifierOpt *ts_scale; int nb_ts_scale; SpecifierOpt *dump_attachment; int nb_dump_attachment; /* output options */ StreamMap *stream_maps; int nb_stream_maps; AudioChannelMap *audio_channel_maps; ///< one info entry per -map_channel int nb_audio_channel_maps; ///< number of (valid) -map_channel settings /* first item specifies output metadata, second is input */ MetadataMap (*meta_data_maps)[2]; int nb_meta_data_maps; int metadata_global_manual; int metadata_streams_manual; int metadata_chapters_manual; const char **attachments; int nb_attachments; int chapters_input_file; int64_t recording_time; uint64_t limit_filesize; float mux_preload; float mux_max_delay; int video_disable; int audio_disable; int subtitle_disable; int data_disable; /* indexed by output file stream index */ int *streamid_map; int nb_streamid_map; SpecifierOpt *metadata; int nb_metadata; SpecifierOpt *max_frames; int nb_max_frames; SpecifierOpt *bitstream_filters; int nb_bitstream_filters; SpecifierOpt *codec_tags; int nb_codec_tags; SpecifierOpt *sample_fmts; int nb_sample_fmts; SpecifierOpt *qscale; int nb_qscale; SpecifierOpt *forced_key_frames; int nb_forced_key_frames; SpecifierOpt *force_fps; int nb_force_fps; SpecifierOpt *frame_aspect_ratios; int nb_frame_aspect_ratios; SpecifierOpt *rc_overrides; int nb_rc_overrides; SpecifierOpt *intra_matrices; int nb_intra_matrices; SpecifierOpt *inter_matrices; int nb_inter_matrices; SpecifierOpt *top_field_first; int nb_top_field_first; SpecifierOpt *presets; int nb_presets; SpecifierOpt *copy_initial_nonkeyframes; int nb_copy_initial_nonkeyframes; #if CONFIG_AVFILTER SpecifierOpt *filters; int nb_filters; #endif } OptionsContext; #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\ {\ int i, ret;\ for (i = 0; i < o->nb_ ## name; i++) {\ char *spec = o->name[i].specifier;\ if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\ outvar = o->name[i].u.type;\ else if (ret < 0)\ exit_program(1);\ }\ } static void reset_options(OptionsContext *o, int is_input) { const OptionDef *po = options; OptionsContext bak= *o; /* all OPT_SPEC and OPT_STRING can be freed in generic way */ while (po->name) { void *dst = (uint8_t*)o + po->u.off; if (po->flags & OPT_SPEC) { SpecifierOpt **so = dst; int i, *count = (int*)(so + 1); for (i = 0; i < *count; i++) { av_freep(&(*so)[i].specifier); if (po->flags & OPT_STRING) av_freep(&(*so)[i].u.str); } av_freep(so); *count = 0; } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING) av_freep(dst); po++; } av_freep(&o->stream_maps); av_freep(&o->audio_channel_maps); av_freep(&o->meta_data_maps); av_freep(&o->streamid_map); memset(o, 0, sizeof(*o)); if(is_input) o->recording_time = bak.recording_time; else o->recording_time = INT64_MAX; o->mux_max_delay = 0.7; o->limit_filesize = UINT64_MAX; o->chapters_input_file = INT_MAX; uninit_opts(); init_opts(); } #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; enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE }; AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc(); 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; #if FF_API_OLD_VSINK_API ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"), "out", NULL, pix_fmts, ost->graph); #else buffersink_params->pixel_fmts = pix_fmts; ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"), "out", NULL, buffersink_params, ost->graph); #endif av_freep(&buffersink_params); 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, (unsigned)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", (unsigned)ost->sws_flags); ost->graph->scale_sws_opts = av_strdup(args); if (ost->avfilter) { AVFilterInOut *outputs = avfilter_inout_alloc(); AVFilterInOut *inputs = avfilter_inout_alloc(); 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 ? // overridden 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, "%s", ""); #if HAVE_TERMIOS_H if(!run_as_daemon) tcsetattr (0, TCSANOW, &oldtty); #endif } static volatile int received_sigterm = 0; static void sigterm_handler(int sig) { received_sigterm = sig; received_nb_signals++; term_exit(); } static void term_init(void) { #if HAVE_TERMIOS_H if(!run_as_daemon){ struct termios tty; tcgetattr (0, &tty); oldtty = tty; atexit(term_exit); tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |INLCR|IGNCR|ICRNL|IXON); tty.c_oflag |= OPOST; tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); tty.c_cflag &= ~(CSIZE|PARENB); tty.c_cflag |= CS8; tty.c_cc[VMIN] = 1; tty.c_cc[VTIME] = 0; tcsetattr (0, TCSANOW, &tty); signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */ } #endif avformat_network_deinit(); signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */ signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */ #ifdef SIGXCPU signal(SIGXCPU, sigterm_handler); #endif } /* read a key without blocking */ static int read_key(void) { unsigned char ch; #if HAVE_TERMIOS_H int n = 1; struct timeval tv; fd_set rfds; FD_ZERO(&rfds); FD_SET(0, &rfds); tv.tv_sec = 0; tv.tv_usec = 0; n = select(1, &rfds, NULL, NULL, &tv); if (n > 0) { n = read(0, &ch, 1); if (n == 1) return ch; return n; } #elif HAVE_KBHIT # if HAVE_PEEKNAMEDPIPE static int is_pipe; static HANDLE input_handle; DWORD dw, nchars; if(!input_handle){ input_handle = GetStdHandle(STD_INPUT_HANDLE); is_pipe = !GetConsoleMode(input_handle, &dw); } if (stdin->_cnt > 0) { read(0, &ch, 1); return ch; } if (is_pipe) { /* When running under a GUI, you will end here. */ if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) return -1; //Read it if(nchars != 0) { read(0, &ch, 1); return ch; }else{ return -1; } } # endif if(kbhit()) return(getch()); #endif return -1; } static int decode_interrupt_cb(void *ctx) { return received_nb_signals > 1; } static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL }; void av_noreturn exit_program(int ret) { int i; /* close files */ for(i=0;ioformat->flags & AVFMT_NOFILE) && s->pb) avio_close(s->pb); avformat_free_context(s); av_dict_free(&output_files[i].opts); } for(i=0;ikey); 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_FATAL, "%s '%s' is experimental and might produce bad " "results.\nAdd '-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_FATAL, "Or use the non experimental %s '%s'.\n", codec_string, codec->name); exit_program(1); } } 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) { if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0])) av_log(NULL, AV_LOG_ERROR, "Conversion will not be lossless.\n"); if(av_get_sample_fmt_name(st->codec->sample_fmt)) 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]; } } } 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 != PIX_FMT_NONE; p++) { if(*p == st->codec->pix_fmt) break; } if (*p == PIX_FMT_NONE) { 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){ av_log(NULL, AV_LOG_ERROR, "%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){ av_log(NULL, AV_LOG_FATAL, "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){ av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n"); exit_program(1); } if (enc->channels != dec->channels || enc->sample_fmt != dec->sample_fmt) 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->swr) || resample_changed || ost->audio_channels_mapped) { 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; swr_free(&ost->swr); } /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */ if (audio_sync_method <= 1 && !ost->audio_channels_mapped && ost->resample_sample_fmt == enc->sample_fmt && ost->resample_channels == enc->channels && ost->resample_sample_rate == enc->sample_rate) { //ost->swr = NULL; ost->audio_resample = 0; } else { ost->swr = swr_alloc_set_opts(ost->swr, enc->channel_layout, enc->sample_fmt, enc->sample_rate, dec->channel_layout, dec->sample_fmt, dec->sample_rate, 0, NULL); if (ost->audio_channels_mapped) swr_set_channel_mapping(ost->swr, ost->audio_channels_map); av_opt_set_double(ost->swr, "rmvol", ost->rematrix_volume, 0); if (ost->audio_channels_mapped) { av_opt_set_int(ost->swr, "icl", av_get_default_channel_layout(ost->audio_channels_mapped), 0); av_opt_set_int(ost->swr, "uch", ost->audio_channels_mapped, 0); } av_opt_set_int(ost->swr, "ich", dec->channels, 0); av_opt_set_int(ost->swr, "och", enc->channels, 0); if(audio_sync_method>1) av_opt_set_int(ost->swr, "flags", SWR_FLAG_RESAMPLE, 0); if(ost->swr && swr_init(ost->swr) < 0){ av_log(NULL, AV_LOG_FATAL, "swr_init() failed\n"); swr_free(&ost->swr); } if (!ost->swr) { av_log(NULL, AV_LOG_FATAL, "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); } } } av_assert0(ost->audio_resample || dec->sample_fmt==enc->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; av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n", (int)-delta); if(!size) return; ist->is_start=0; }else{ 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; av_log(NULL, AV_LOG_VERBOSE, "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); av_log(NULL, AV_LOG_VERBOSE, "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)); swr_compensate(ost->swr, 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 = swr_convert(ost->swr, ( uint8_t*[]){buftmp}, audio_buf_size / (enc->channels * osize), (const uint8_t*[]){buf }, size / (dec->channels * isize)); size_out = size_out * enc->channels * osize; } else { buftmp = buf; size_out = size; } av_assert0(ost->audio_resample || dec->sample_fmt==enc->sample_fmt); /* 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) { av_log(NULL, AV_LOG_FATAL, "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) { av_log(NULL, AV_LOG_FATAL, "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){ av_log(NULL, AV_LOG_FATAL, "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) { av_log(NULL, AV_LOG_FATAL, "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 */ av_log(NULL, AV_LOG_WARNING, "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) { av_log(NULL, AV_LOG_ERROR, "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) { av_log(NULL, AV_LOG_FATAL, "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) { #if CONFIG_AVFILTER *out_picture = in_picture; #else AVCodecContext *dec = ist->st->codec; AVCodecContext *enc = ost->st->codec; int resample_changed = ost->resample_width != dec->width || ost->resample_height != dec->height || ost->resample_pix_fmt != dec->pix_fmt; *out_picture = in_picture; 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)); ost->resample_width = dec->width; ost->resample_height = dec->height; ost->resample_pix_fmt = dec->pix_fmt; } ost->video_resample = dec->width != enc->width || dec->height != enc->height || dec->pix_fmt != enc->pix_fmt; if (ost->video_resample) { *out_picture = &ost->resample_frame; if (!ost->img_resample_ctx || resample_changed) { /* initialize the destination picture */ if (!ost->resample_frame.data[0]) { avcodec_get_frame_defaults(&ost->resample_frame); if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt, enc->width, enc->height)) { av_log(NULL, AV_LOG_FATAL, "Cannot allocate temp picture, check pix fmt\n"); exit_program(1); } } /* initialize a new scaler context */ sws_freeContext(ost->img_resample_ctx); ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt, enc->width, enc->height, enc->pix_fmt, ost->sws_flags, NULL, NULL, NULL); if (ost->img_resample_ctx == NULL) { av_log(NULL, AV_LOG_FATAL, "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); } #endif } 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; double sync_ipts; double duration = 0; enc = ost->st->codec; if (ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE) { duration = FFMAX(av_q2d(ist->st->time_base), av_q2d(ist->st->codec->time_base)); if(ist->st->avg_frame_rate.num) duration= FFMAX(duration, 1/av_q2d(ist->st->avg_frame_rate)); duration /= av_q2d(enc->time_base); } 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_NOTIMESTAMPS) ? 0 : (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1; if (format_video_sync) { double vdelta = sync_ipts - ost->sync_opts + duration; //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; av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n"); }else if (nb_frames > 1) { nb_frames_dup += nb_frames - 1; av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames-1); } }else ost->sync_opts= lrintf(sync_ipts); nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number); if (nb_frames <= 0) return; do_video_resample(ost, ist, in_picture, &final_picture); /* duplicates frame if needed */ for(i=0;iindex; if (s->oformat->flags & AVFMT_RAWPICTURE) { /* raw pictures are written as AVPicture structure to avoid any copies. We support temporarily the older method. */ enc->coded_frame->interlaced_frame = in_picture->interlaced_frame; enc->coded_frame->top_field_first = in_picture->top_field_first; 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); } 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 (ost->top_field_first == -1) big_picture.top_field_first = in_picture->top_field_first; else big_picture.top_field_first = !!ost->top_field_first; } /* handles same_quant here. This is not correct because it may not be a global option */ big_picture.quality = quality; if (!enc->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) { av_log(NULL, AV_LOG_FATAL, "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, int64_t timer_start, int64_t cur_time) { char buf[1024]; OutputStream *ost; AVFormatContext *oc; int64_t total_size; AVCodecContext *enc; int frame_number, vid, i; double bitrate; int64_t pts = INT64_MAX; static int64_t last_time = -1; static int qp_histogram[52]; int hours, mins, secs, us; if (!print_stats && !is_last_report) return; if (!is_last_report) { 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'; vid = 0; for(i=0;ist->codec; if (!ost->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 = (cur_time-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 && qpflags&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 = FFMIN(pts, av_rescale_q(ost->st->pts.val, ost->st->time_base, AV_TIME_BASE_Q)); } secs = pts / AV_TIME_BASE; us = pts % AV_TIME_BASE; mins = secs / 60; secs %= 60; hours = mins / 60; mins %= 60; bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0; snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "size=%8.0fkB time=", total_size / 1024.0); snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%02d:%02d:%02d.%02d ", hours, mins, secs, (100 * us) / AV_TIME_BASE); snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "bitrate=%6.1fkbits/s", 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); av_log(NULL, AV_LOG_INFO, "%s \r", buf); fflush(stderr); if (is_last_report) { int64_t raw= audio_size + video_size + extra_size; av_log(NULL, AV_LOG_INFO, "\n"); av_log(NULL, AV_LOG_INFO, "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); } static void flush_encoders(OutputStream *ost_table, int nb_ostreams) { int i, ret; for (i = 0; i < nb_ostreams; i++) { OutputStream *ost = &ost_table[i]; AVCodecContext *enc = ost->st->codec; AVFormatContext *os = output_files[ost->file_index].ctx; if (!ost->encoding_needed) continue; 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; 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) { av_log(NULL, AV_LOG_FATAL, "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) { av_log(NULL, AV_LOG_FATAL, "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); } } } /* * Check whether a packet from ist should be written into ost at this time */ static int check_output_constraints(InputStream *ist, OutputStream *ost) { OutputFile *of = &output_files[ost->file_index]; int ist_index = ist - input_streams; if (ost->source_index != ist_index) return 0; if (of->start_time && ist->pts < of->start_time) return 0; 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; return 0; } return 1; } static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt) { OutputFile *of = &output_files[ost->file_index]; int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base); AVPicture pict; AVPacket opkt; av_init_packet(&opkt); if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !ost->copy_initial_nonkeyframes) return; /* force the input stream PTS */ if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) audio_size += pkt->size; else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) { video_size += pkt->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, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY)) opkt.destruct = av_destruct_packet; } else { opkt.data = pkt->data; opkt.size = pkt->size; } if (of->ctx->oformat->flags & AVFMT_RAWPICTURE) { /* store AVPicture in AVPacket, as expected by the output format */ avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height); opkt.data = (uint8_t *)&pict; opkt.size = sizeof(AVPicture); opkt.flags |= AV_PKT_FLAG_KEY; } write_frame(of->ctx, &opkt, ost->st->codec, ost->bitstream_filters); ost->st->codec->frame_number++; ost->frame_number++; av_free_packet(&opkt); } static void rate_emu_sleep(InputStream *ist) { if (input_files[ist->file_index].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); } } static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output) { static unsigned int samples_size = 0; int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt); uint8_t *decoded_data_buf = NULL; int decoded_data_size = 0; int i, ret; if (pkt && samples_size < FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE)) { av_free(samples); samples_size = FFMAX(pkt->size * bps, AVCODEC_MAX_AUDIO_FRAME_SIZE); samples = av_malloc(samples_size); } decoded_data_size = samples_size; ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size, pkt); if (ret < 0) return 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 */ return ret; } 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); // preprocess audio (volume) if (audio_volume != 256) { switch (ist->st->codec->sample_fmt) { case AV_SAMPLE_FMT_U8: { uint8_t *volp = samples; for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) { int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128; *volp++ = av_clip_uint8(v); } break; } case AV_SAMPLE_FMT_S16: { int16_t *volp = samples; for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) { int v = ((*volp) * audio_volume + 128) >> 8; *volp++ = av_clip_int16(v); } break; } case AV_SAMPLE_FMT_S32: { int32_t *volp = samples; for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) { int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8); *volp++ = av_clipl_int32(v); } break; } case AV_SAMPLE_FMT_FLT: { float *volp = samples; float scale = audio_volume / 256.f; for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) { *volp++ *= scale; } break; } case AV_SAMPLE_FMT_DBL: { double *volp = samples; double scale = audio_volume / 256.; for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) { *volp++ *= scale; } break; } default: av_log(NULL, AV_LOG_FATAL, "Audio volume adjustment on sample format %s is not supported.\n", av_get_sample_fmt_name(ist->st->codec->sample_fmt)); exit_program(1); } } rate_emu_sleep(ist); for (i = 0; i < nb_output_streams; i++) { OutputStream *ost = &output_streams[i]; if (!check_output_constraints(ist, ost) || !ost->encoding_needed) continue; do_audio_out(output_files[ost->file_index].ctx, ost, ist, decoded_data_buf, decoded_data_size); } return ret; } static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts, int64_t *pkt_dts) { AVFrame *decoded_frame, *filtered_frame = NULL; void *buffer_to_free = NULL; int i, ret = 0; float quality = 0; #if CONFIG_AVFILTER int frame_available = 1; #endif if (!(decoded_frame = avcodec_alloc_frame())) return AVERROR(ENOMEM); pkt->pts = *pkt_pts; pkt->dts = *pkt_dts; *pkt_pts = AV_NOPTS_VALUE; if(*pkt_dts != AV_NOPTS_VALUE && ist->st->codec->time_base.num != 0) { int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame; *pkt_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->time_base.num * ticks) / ist->st->codec->time_base.den; }else *pkt_dts = AV_NOPTS_VALUE; ret = avcodec_decode_video2(ist->st->codec, decoded_frame, got_output, pkt); if (ret < 0) goto fail; quality = same_quant ? decoded_frame->quality : 0; if (!*got_output) { /* no picture yet */ av_freep(&decoded_frame); return ret; } if(decoded_frame->best_effort_timestamp != AV_NOPTS_VALUE) ist->next_pts = ist->pts = decoded_frame->best_effort_timestamp; 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; } pkt->size = 0; pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free); #if CONFIG_AVFILTER for(i=0;isample_aspect_ratio.num) decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio; decoded_frame->pts = ist->pts; av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, AV_VSRC_BUF_FLAG_OVERWRITE); } } #endif rate_emu_sleep(ist); for (i = 0; i < nb_output_streams; i++) { OutputStream *ost = &output_streams[i]; int frame_size; if (!check_output_constraints(ist, ost) || !ost->encoding_needed) continue; #if CONFIG_AVFILTER if (ost->input_video_filter) { frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]); } while (frame_available) { if (ost->output_video_filter) { AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base; if (av_buffersink_get_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0) goto cont; if (!filtered_frame && !(filtered_frame = avcodec_alloc_frame())) { ret = AVERROR(ENOMEM); goto fail; } *filtered_frame= *decoded_frame; //for me_threshold if (ost->picref) { avfilter_fill_frame_from_video_buffer_ref(filtered_frame, ost->picref); ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q); } } if (ost->picref->video && !ost->frame_aspect_ratio) ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio; #else filtered_frame = decoded_frame; #endif do_video_out(output_files[ost->file_index].ctx, ost, ist, filtered_frame, &frame_size, same_quant ? quality : ost->st->codec->global_quality); if (vstats_filename && frame_size) do_video_stats(output_files[ost->file_index].ctx, ost, frame_size); #if CONFIG_AVFILTER cont: frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]); avfilter_unref_buffer(ost->picref); } av_freep(&filtered_frame); #endif } fail: av_free(buffer_to_free); av_freep(&decoded_frame); return ret; } static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output) { AVSubtitle subtitle; int i, ret = avcodec_decode_subtitle2(ist->st->codec, &subtitle, got_output, pkt); if (ret < 0) return ret; if (!*got_output) return ret; rate_emu_sleep(ist); for (i = 0; i < nb_output_streams; i++) { OutputStream *ost = &output_streams[i]; if (!check_output_constraints(ist, ost) || !ost->encoding_needed) continue; do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts); } avsubtitle_free(&subtitle); return ret; } /* pkt = NULL means EOF (needed to flush decoder buffers) */ static int output_packet(InputStream *ist, OutputStream *ost_table, int nb_ostreams, const AVPacket *pkt) { int ret = 0, i; int got_output; int64_t pkt_dts = AV_NOPTS_VALUE; int64_t pkt_pts = AV_NOPTS_VALUE; AVPacket avpkt; 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){ if(ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed) ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q); pkt_dts = 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 (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) { handle_eof: ist->pts = ist->next_pts; if (avpkt.size && avpkt.size != pkt->size) { av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING, "Multiple frames in a packet from stream %d\n", pkt->stream_index); ist->showed_multi_packet_warning = 1; } switch(ist->st->codec->codec_type) { case AVMEDIA_TYPE_AUDIO: ret = transcode_audio (ist, &avpkt, &got_output); break; case AVMEDIA_TYPE_VIDEO: ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts, &pkt_dts); break; case AVMEDIA_TYPE_SUBTITLE: ret = transcode_subtitles(ist, &avpkt, &got_output); break; default: return -1; } if (ret < 0) return ret; // touch data and size only if not EOF if (pkt) { if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO) ret = avpkt.size; avpkt.data += ret; avpkt.size -= ret; } if (!got_output) { continue; } } /* handle stream copy */ if (!ist->decoding_needed) { rate_emu_sleep(ist); 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; } } for (i = 0; pkt && i < nb_ostreams; i++) { OutputStream *ost = &ost_table[i]; if (!check_output_constraints(ist, ost) || ost->encoding_needed) continue; do_streamcopy(ist, ost, pkt); } 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); } static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams, char *error, int error_len) { InputStream *ist = &input_streams[ist_index]; if (ist->decoding_needed) { AVCodec *codec = ist->dec; if (!codec) { snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d", avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index); return AVERROR(EINVAL); } if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) { snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d", ist->file_index, ist->st->index); return AVERROR(EINVAL); } assert_codec_experimental(ist->st->codec, 0); assert_avoptions(ist->opts); } ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames*AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0; ist->next_pts = AV_NOPTS_VALUE; ist->is_start = 1; return 0; } static int transcode_init(OutputFile *output_files, int nb_output_files, InputFile *input_files, int nb_input_files) { int ret = 0, i, j, k; AVFormatContext *oc; AVCodecContext *codec, *icodec; OutputStream *ost; InputStream *ist; char error[1024]; int want_sdp = 1; /* init framerate emulation */ for (i = 0; i < nb_input_files; i++) { InputFile *ifile = &input_files[i]; if (ifile->rate_emu) for (j = 0; j < ifile->nb_streams; j++) input_streams[j + ifile->ist_index].start = av_gettime(); } /* output stream init */ for (i = 0; i < nb_output_files; i++) { oc = output_files[i].ctx; if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) { av_dump_format(oc, i, oc->filename, 1); av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i); return AVERROR(EINVAL); } } /* for each output stream, we compute the right encoding parameters */ for (i = 0; i < nb_output_streams; i++) { ost = &output_streams[i]; oc = output_files[ost->file_index].ctx; ist = &input_streams[ost->source_index]; if (ost->attachment_filename) continue; 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->stream_copy) { uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE; if (extra_size > INT_MAX) { return AVERROR(EINVAL); } /* 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 (!oc->oformat->codec_tag || av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id || av_codec_get_tag(oc->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) { return AVERROR(ENOMEM); } memcpy(codec->extradata, icodec->extradata, icodec->extradata_size); codec->extradata_size= icodec->extradata_size; codec->time_base = ist->st->time_base; if(!strcmp(oc->oformat->name, "avi")) { if (!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*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; codec->time_base.den *= 2; } } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)) { 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); switch(codec->codec_type) { case AVMEDIA_TYPE_AUDIO: if(audio_volume != 256) { av_log(NULL, AV_LOG_FATAL, "-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; 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}; } ost->st->avg_frame_rate = ist->st->avg_frame_rate; break; case AVMEDIA_TYPE_SUBTITLE: codec->width = icodec->width; codec->height = icodec->height; break; case AVMEDIA_TYPE_DATA: case AVMEDIA_TYPE_ATTACHMENT: break; default: abort(); } } else { if (!ost->enc) ost->enc = avcodec_find_encoder(ost->st->codec->codec_id); ist->decoding_needed = 1; ost->encoding_needed = 1; switch(codec->codec_type) { case AVMEDIA_TYPE_AUDIO: ost->fifo = av_fifo_alloc(1024); if (!ost->fifo) { return AVERROR(ENOMEM); } if (!codec->sample_rate) codec->sample_rate = icodec->sample_rate; 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 (ost->audio_channels_mapped) { /* the requested output channel is set to the number of * -map_channel only if no -ac are specified */ if (!codec->channels) { codec->channels = ost->audio_channels_mapped; codec->channel_layout = av_get_default_channel_layout(codec->channels); if (!codec->channel_layout) { av_log(NULL, AV_LOG_FATAL, "Unable to find an appropriate channel layout for requested number of channel\n"); exit_program(1); } } /* fill unused channel mapping with -1 (which means a muted * channel in case the number of output channels is bigger * than the number of mapped channel) */ for (j = ost->audio_channels_mapped; j < FF_ARRAY_ELEMS(ost->audio_channels_map); j++) ost->audio_channels_map[j] = -1; } else 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; ost->audio_resample |= codec->sample_fmt != icodec->sample_fmt || codec->channel_layout != icodec->channel_layout; icodec->request_channels = codec->channels; 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) { av_log(NULL, AV_LOG_FATAL, "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) { codec->bits_per_raw_sample= frame_bits_per_raw_sample; } ost->resample_height = icodec->height; ost->resample_width = icodec->width; ost->resample_pix_fmt = icodec->pix_fmt; 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 && !ost->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( av_q2d(codec->time_base) < 0.001 && video_sync_method && (video_sync_method==1 || (video_sync_method<0 && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){ av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n" "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n"); } for (j = 0; j < ost->forced_kf_count; j++) ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j], AV_TIME_BASE_Q, codec->time_base); #if CONFIG_AVFILTER if (configure_video_filters(ist, ost)) { av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n"); exit(1); } #endif break; case AVMEDIA_TYPE_SUBTITLE: break; default: abort(); break; } /* two pass mode */ if (codec->codec_id != CODEC_ID_H264 && (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_PASS2) { char *logbuffer; size_t logbuffer_size; if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) { av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n", logfilename); exit_program(1); } codec->stats_in = logbuffer; } if (codec->flags & CODEC_FLAG_PASS1) { f = fopen(logfilename, "wb"); if (!f) { av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno)); exit_program(1); } ost->logfile = f; } } } if(codec->codec_type == AVMEDIA_TYPE_VIDEO){ /* maximum video buffer size is 6-bytes per pixel, plus DPX header size (1664)*/ int size = codec->width * codec->height; bit_buffer_size = FFMAX(bit_buffer_size, 7*size + 10000); } } if (!bit_buffer) bit_buffer = av_malloc(bit_buffer_size); if (!bit_buffer) { av_log(NULL, AV_LOG_ERROR, "Cannot allocate %d bytes output buffer\n", bit_buffer_size); return AVERROR(ENOMEM); } /* 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 %s) not found for output stream #%d:%d", avcodec_get_name(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; if (ost->st->codec->me_threshold) input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV; } } /* init input streams */ for (i = 0; i < nb_input_streams; i++) if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0) goto dump_format; /* discard unused programs */ for (i = 0; i < nb_input_files; i++) { InputFile *ifile = &input_files[i]; for (j = 0; j < ifile->ctx->nb_programs; j++) { AVProgram *p = ifile->ctx->programs[j]; int discard = AVDISCARD_ALL; for (k = 0; k < p->nb_stream_indexes; k++) if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) { discard = AVDISCARD_DEFAULT; break; } p->discard = discard; } } /* open files and write file headers */ for (i = 0; i < nb_output_files; i++) { oc = output_files[i].ctx; oc->interrupt_callback = int_cb; if (avformat_write_header(oc, &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(oc->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 */ av_log(NULL, AV_LOG_INFO, "Stream mapping:\n"); for (i = 0; i < nb_output_streams; i++) { ost = &output_streams[i]; if (ost->attachment_filename) { /* an attached file */ av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n", ost->attachment_filename, ost->file_index, ost->index); continue; } av_log(NULL, AV_LOG_INFO, " 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->audio_channels_mapped) { av_log(NULL, AV_LOG_INFO, " [ch:"); for (j = 0; j < ost->audio_channels_mapped; j++) if (ost->audio_channels_map[j] == -1) av_log(NULL, AV_LOG_INFO, " M"); else av_log(NULL, AV_LOG_INFO, " %d", ost->audio_channels_map[j]); av_log(NULL, AV_LOG_INFO, "]"); } if (ost->sync_ist != &input_streams[ost->source_index]) av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]", ost->sync_ist->file_index, ost->sync_ist->st->index); if (ost->stream_copy) av_log(NULL, AV_LOG_INFO, " (copy)"); else av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ? input_streams[ost->source_index].dec->name : "?", ost->enc ? ost->enc->name : "?"); av_log(NULL, AV_LOG_INFO, "\n"); } if (ret) { av_log(NULL, AV_LOG_ERROR, "%s\n", error); return ret; } if (want_sdp) { print_sdp(output_files, nb_output_files); } return 0; } /* * 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, i; AVFormatContext *is, *os; OutputStream *ost; InputStream *ist; uint8_t *no_packet; int no_packet_count=0; int64_t timer_start; int key; if (!(no_packet = av_mallocz(nb_input_files))) exit_program(1); ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files); if (ret < 0) goto fail; if (!using_stdin) { av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n"); } timer_start = av_gettime(); for(; received_sigterm == 0;) { int file_index, ist_index; AVPacket pkt; int64_t ipts_min; double opts_min; int64_t cur_time= av_gettime(); ipts_min= INT64_MAX; opts_min= 1e100; /* if 'q' pressed, exits */ if (!using_stdin) { static int64_t last_time; if (received_nb_signals) break; /* read_key() returns 0 on EOF */ if(cur_time - last_time >= 100000 && !run_as_daemon){ key = read_key(); last_time = cur_time; }else key = -1; if (key == 'q') break; if (key == '+') av_log_set_level(av_log_get_level()+10); if (key == '-') av_log_set_level(av_log_get_level()-10); if (key == 's') qp_hist ^= 1; if (key == 'h'){ if (do_hex_dump){ do_hex_dump = do_pkt_dump = 0; } else if(do_pkt_dump){ do_hex_dump = 1; } else do_pkt_dump = 1; av_log_set_level(AV_LOG_DEBUG); } #if CONFIG_AVFILTER if (key == 'c' || key == 'C'){ char buf[4096], target[64], command[256], arg[256] = {0}; double time; int k, n = 0; fprintf(stderr, "\nEnter command: