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504 lines
15 KiB
504 lines
15 KiB
/* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVCONV_H |
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#define AVCONV_H |
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#include "config.h" |
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#include <stdint.h> |
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#include <stdio.h> |
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#if HAVE_PTHREADS |
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#include <pthread.h> |
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#endif |
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#include "cmdutils.h" |
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#include "libavformat/avformat.h" |
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#include "libavformat/avio.h" |
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#include "libavcodec/avcodec.h" |
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#include "libavfilter/avfilter.h" |
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#include "libavutil/avutil.h" |
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#include "libavutil/dict.h" |
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#include "libavutil/fifo.h" |
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#include "libavutil/pixfmt.h" |
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#include "libavutil/rational.h" |
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#define VSYNC_AUTO -1 |
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#define VSYNC_PASSTHROUGH 0 |
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#define VSYNC_CFR 1 |
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#define VSYNC_VFR 2 |
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enum HWAccelID { |
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HWACCEL_NONE = 0, |
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HWACCEL_AUTO, |
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HWACCEL_VDPAU, |
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HWACCEL_DXVA2, |
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HWACCEL_VDA, |
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HWACCEL_QSV, |
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HWACCEL_VAAPI, |
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}; |
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typedef struct HWAccel { |
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const char *name; |
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int (*init)(AVCodecContext *s); |
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enum HWAccelID id; |
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enum AVPixelFormat pix_fmt; |
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} HWAccel; |
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/* select an input stream for an output stream */ |
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typedef struct StreamMap { |
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int disabled; /* 1 is this mapping is disabled by a negative map */ |
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int file_index; |
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int stream_index; |
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int sync_file_index; |
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int sync_stream_index; |
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char *linklabel; /* name of an output link, for mapping lavfi outputs */ |
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} StreamMap; |
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/* select an input file for an output file */ |
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typedef struct MetadataMap { |
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int file; // file index |
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char type; // type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram |
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int index; // stream/chapter/program number |
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} MetadataMap; |
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typedef struct OptionsContext { |
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OptionGroup *g; |
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/* input/output options */ |
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int64_t start_time; |
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const char *format; |
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SpecifierOpt *codec_names; |
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int nb_codec_names; |
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SpecifierOpt *audio_channels; |
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int nb_audio_channels; |
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SpecifierOpt *audio_sample_rate; |
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int nb_audio_sample_rate; |
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SpecifierOpt *frame_rates; |
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int nb_frame_rates; |
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SpecifierOpt *frame_sizes; |
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int nb_frame_sizes; |
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SpecifierOpt *frame_pix_fmts; |
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int nb_frame_pix_fmts; |
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/* input options */ |
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int64_t input_ts_offset; |
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int loop; |
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int rate_emu; |
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int accurate_seek; |
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SpecifierOpt *ts_scale; |
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int nb_ts_scale; |
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SpecifierOpt *dump_attachment; |
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int nb_dump_attachment; |
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SpecifierOpt *hwaccels; |
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int nb_hwaccels; |
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SpecifierOpt *hwaccel_devices; |
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int nb_hwaccel_devices; |
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SpecifierOpt *hwaccel_output_formats; |
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int nb_hwaccel_output_formats; |
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SpecifierOpt *autorotate; |
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int nb_autorotate; |
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/* output options */ |
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StreamMap *stream_maps; |
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int nb_stream_maps; |
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/* first item specifies output metadata, second is input */ |
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MetadataMap (*meta_data_maps)[2]; |
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int nb_meta_data_maps; |
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int metadata_global_manual; |
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int metadata_streams_manual; |
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int metadata_chapters_manual; |
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const char **attachments; |
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int nb_attachments; |
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int chapters_input_file; |
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int64_t recording_time; |
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uint64_t limit_filesize; |
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float mux_preload; |
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float mux_max_delay; |
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int shortest; |
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int video_disable; |
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int audio_disable; |
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int subtitle_disable; |
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int data_disable; |
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/* indexed by output file stream index */ |
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int *streamid_map; |
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int nb_streamid_map; |
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SpecifierOpt *metadata; |
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int nb_metadata; |
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SpecifierOpt *max_frames; |
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int nb_max_frames; |
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SpecifierOpt *bitstream_filters; |
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int nb_bitstream_filters; |
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SpecifierOpt *codec_tags; |
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int nb_codec_tags; |
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SpecifierOpt *sample_fmts; |
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int nb_sample_fmts; |
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SpecifierOpt *qscale; |
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int nb_qscale; |
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SpecifierOpt *forced_key_frames; |
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int nb_forced_key_frames; |
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SpecifierOpt *force_fps; |
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int nb_force_fps; |
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SpecifierOpt *frame_aspect_ratios; |
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int nb_frame_aspect_ratios; |
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SpecifierOpt *rc_overrides; |
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int nb_rc_overrides; |
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SpecifierOpt *intra_matrices; |
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int nb_intra_matrices; |
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SpecifierOpt *inter_matrices; |
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int nb_inter_matrices; |
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SpecifierOpt *top_field_first; |
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int nb_top_field_first; |
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SpecifierOpt *metadata_map; |
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int nb_metadata_map; |
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SpecifierOpt *presets; |
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int nb_presets; |
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SpecifierOpt *copy_initial_nonkeyframes; |
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int nb_copy_initial_nonkeyframes; |
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SpecifierOpt *filters; |
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int nb_filters; |
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SpecifierOpt *filter_scripts; |
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int nb_filter_scripts; |
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SpecifierOpt *pass; |
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int nb_pass; |
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SpecifierOpt *passlogfiles; |
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int nb_passlogfiles; |
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SpecifierOpt *max_muxing_queue_size; |
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int nb_max_muxing_queue_size; |
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} OptionsContext; |
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typedef struct InputFilter { |
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AVFilterContext *filter; |
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struct InputStream *ist; |
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struct FilterGraph *graph; |
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uint8_t *name; |
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AVFifoBuffer *frame_queue; |
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// parameters configured for this input |
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int format; |
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int width, height; |
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AVRational sample_aspect_ratio; |
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int sample_rate; |
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uint64_t channel_layout; |
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AVBufferRef *hw_frames_ctx; |
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int eof; |
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} InputFilter; |
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typedef struct OutputFilter { |
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AVFilterContext *filter; |
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struct OutputStream *ost; |
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struct FilterGraph *graph; |
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uint8_t *name; |
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/* temporary storage until stream maps are processed */ |
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AVFilterInOut *out_tmp; |
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enum AVMediaType type; |
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/* desired output stream properties */ |
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int width, height; |
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AVRational frame_rate; |
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int format; |
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int sample_rate; |
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uint64_t channel_layout; |
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// those are only set if no format is specified and the encoder gives us multiple options |
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int *formats; |
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uint64_t *channel_layouts; |
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int *sample_rates; |
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} OutputFilter; |
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typedef struct FilterGraph { |
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int index; |
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const char *graph_desc; |
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AVFilterGraph *graph; |
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InputFilter **inputs; |
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int nb_inputs; |
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OutputFilter **outputs; |
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int nb_outputs; |
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} FilterGraph; |
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typedef struct InputStream { |
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int file_index; |
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AVStream *st; |
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int discard; /* true if stream data should be discarded */ |
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int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */ |
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AVCodecContext *dec_ctx; |
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AVCodec *dec; |
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AVFrame *decoded_frame; |
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AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */ |
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int64_t start; /* time when read started */ |
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/* predicted dts of the next packet read for this stream or (when there are |
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* several frames in a packet) of the next frame in current packet */ |
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int64_t next_dts; |
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/* dts of the last packet read for this stream */ |
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int64_t last_dts; |
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int64_t min_pts; /* pts with the smallest value in a current stream */ |
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int64_t max_pts; /* pts with the higher value in a current stream */ |
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int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */ |
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PtsCorrectionContext pts_ctx; |
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double ts_scale; |
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AVDictionary *decoder_opts; |
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AVRational framerate; /* framerate forced with -r */ |
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int autorotate; |
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/* decoded data from this stream goes into all those filters |
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* currently video and audio only */ |
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InputFilter **filters; |
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int nb_filters; |
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/* hwaccel options */ |
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enum HWAccelID hwaccel_id; |
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char *hwaccel_device; |
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enum AVPixelFormat hwaccel_output_format; |
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/* hwaccel context */ |
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enum HWAccelID active_hwaccel_id; |
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void *hwaccel_ctx; |
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void (*hwaccel_uninit)(AVCodecContext *s); |
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int (*hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags); |
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int (*hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame); |
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enum AVPixelFormat hwaccel_pix_fmt; |
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enum AVPixelFormat hwaccel_retrieved_pix_fmt; |
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AVBufferRef *hw_frames_ctx; |
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/* stats */ |
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// combined size of all the packets read |
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uint64_t data_size; |
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/* number of packets successfully read for this stream */ |
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uint64_t nb_packets; |
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// number of frames/samples retrieved from the decoder |
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uint64_t frames_decoded; |
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uint64_t samples_decoded; |
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} InputStream; |
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typedef struct InputFile { |
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AVFormatContext *ctx; |
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int eof_reached; /* true if eof reached */ |
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int eagain; /* true if last read attempt returned EAGAIN */ |
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int ist_index; /* index of first stream in ist_table */ |
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int loop; /* set number of times input stream should be looped */ |
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int64_t duration; /* actual duration of the longest stream in a file |
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at the moment when looping happens */ |
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AVRational time_base; /* time base of the duration */ |
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int64_t ts_offset; |
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int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */ |
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int64_t recording_time; |
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int nb_streams; /* number of stream that avconv is aware of; may be different |
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from ctx.nb_streams if new streams appear during av_read_frame() */ |
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int rate_emu; |
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int accurate_seek; |
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#if HAVE_PTHREADS |
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pthread_t thread; /* thread reading from this file */ |
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int finished; /* the thread has exited */ |
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int joined; /* the thread has been joined */ |
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pthread_mutex_t fifo_lock; /* lock for access to fifo */ |
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pthread_cond_t fifo_cond; /* the main thread will signal on this cond after reading from fifo */ |
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AVFifoBuffer *fifo; /* demuxed packets are stored here; freed by the main thread */ |
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#endif |
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} InputFile; |
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typedef struct OutputStream { |
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int file_index; /* file index */ |
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int index; /* stream index in the output file */ |
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int source_index; /* InputStream index */ |
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AVStream *st; /* stream in the output file */ |
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int encoding_needed; /* true if encoding needed for this stream */ |
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int frame_number; |
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/* input pts and corresponding output pts |
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for A/V sync */ |
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// double sync_ipts; /* dts from the AVPacket of the demuxer in second units */ |
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struct InputStream *sync_ist; /* input stream to sync against */ |
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int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number |
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/* pts of the first frame encoded for this stream, used for limiting |
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* recording time */ |
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int64_t first_pts; |
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/* dts of the last packet sent to the muxer */ |
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int64_t last_mux_dts; |
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// the timebase of the packets sent to the muxer |
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AVRational mux_timebase; |
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int nb_bitstream_filters; |
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const AVBitStreamFilter **bitstream_filters; |
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AVBSFContext **bsf_ctx; |
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AVCodecContext *enc_ctx; |
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AVCodec *enc; |
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int64_t max_frames; |
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AVFrame *filtered_frame; |
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void *hwaccel_ctx; |
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/* video only */ |
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AVRational frame_rate; |
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int force_fps; |
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int top_field_first; |
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float frame_aspect_ratio; |
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/* forced key frames */ |
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int64_t *forced_kf_pts; |
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int forced_kf_count; |
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int forced_kf_index; |
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char *forced_keyframes; |
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char *logfile_prefix; |
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FILE *logfile; |
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OutputFilter *filter; |
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char *avfilter; |
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int64_t sws_flags; |
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AVDictionary *encoder_opts; |
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AVDictionary *resample_opts; |
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int finished; /* no more packets should be written for this stream */ |
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int stream_copy; |
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// init_output_stream() has been called for this stream |
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// The encoder and the bistream filters have been initialized and the stream |
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// parameters are set in the AVStream. |
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int initialized; |
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const char *attachment_filename; |
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int copy_initial_nonkeyframes; |
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enum AVPixelFormat pix_fmts[2]; |
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AVCodecParserContext *parser; |
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AVCodecContext *parser_avctx; |
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/* stats */ |
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// combined size of all the packets written |
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uint64_t data_size; |
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// number of packets send to the muxer |
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uint64_t packets_written; |
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// number of frames/samples sent to the encoder |
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uint64_t frames_encoded; |
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uint64_t samples_encoded; |
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/* packet quality factor */ |
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int quality; |
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int max_muxing_queue_size; |
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/* the packets are buffered here until the muxer is ready to be initialized */ |
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AVFifoBuffer *muxing_queue; |
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} OutputStream; |
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typedef struct OutputFile { |
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AVFormatContext *ctx; |
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AVDictionary *opts; |
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int ost_index; /* index of the first stream in output_streams */ |
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int64_t recording_time; /* desired length of the resulting file in microseconds */ |
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int64_t start_time; /* start time in microseconds */ |
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uint64_t limit_filesize; |
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int shortest; |
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int header_written; |
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} OutputFile; |
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extern InputStream **input_streams; |
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extern int nb_input_streams; |
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extern InputFile **input_files; |
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extern int nb_input_files; |
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extern OutputStream **output_streams; |
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extern int nb_output_streams; |
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extern OutputFile **output_files; |
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extern int nb_output_files; |
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extern FilterGraph **filtergraphs; |
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extern int nb_filtergraphs; |
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extern char *vstats_filename; |
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extern float audio_drift_threshold; |
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extern float dts_delta_threshold; |
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extern int audio_volume; |
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extern int audio_sync_method; |
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extern int video_sync_method; |
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extern int do_benchmark; |
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extern int do_deinterlace; |
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extern int do_hex_dump; |
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extern int do_pkt_dump; |
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extern int copy_ts; |
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extern int copy_tb; |
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extern int exit_on_error; |
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extern int print_stats; |
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extern int qp_hist; |
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extern const AVIOInterruptCB int_cb; |
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extern const OptionDef options[]; |
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extern const HWAccel hwaccels[]; |
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extern int hwaccel_lax_profile_check; |
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extern AVBufferRef *hw_device_ctx; |
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void reset_options(OptionsContext *o); |
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void show_usage(void); |
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void opt_output_file(void *optctx, const char *filename); |
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void assert_avoptions(AVDictionary *m); |
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int guess_input_channel_layout(InputStream *ist); |
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int configure_filtergraph(FilterGraph *fg); |
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int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out); |
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int ist_in_filtergraph(FilterGraph *fg, InputStream *ist); |
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int filtergraph_is_simple(FilterGraph *fg); |
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int init_simple_filtergraph(InputStream *ist, OutputStream *ost); |
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int init_complex_filtergraph(FilterGraph *fg); |
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int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame); |
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int avconv_parse_options(int argc, char **argv); |
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int vdpau_init(AVCodecContext *s); |
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int dxva2_init(AVCodecContext *s); |
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int vda_init(AVCodecContext *s); |
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int qsv_init(AVCodecContext *s); |
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int qsv_transcode_init(OutputStream *ost); |
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int vaapi_decode_init(AVCodecContext *avctx); |
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int vaapi_device_init(const char *device); |
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#endif /* AVCONV_H */
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