mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-18 03:19:31 +02:00
7ce47090ce
This only supports one device globally, but more can be used by
passing them with input streams in hw_frames_ctx or by deriving new
devices inside a filter graph with hwmap.
(cherry picked from commit e669db7610)
680 lines
20 KiB
C
680 lines
20 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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 FFMPEG_H
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#define FFMPEG_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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#include <signal.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/eval.h"
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#include "libavutil/fifo.h"
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#include "libavutil/hwcontext.h"
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#include "libavutil/pixfmt.h"
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#include "libavutil/rational.h"
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#include "libavutil/threadmessage.h"
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#include "libswresample/swresample.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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#define VSYNC_VSCFR 0xfe
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#define VSYNC_DROP 0xff
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#define MAX_STREAMS 1024 /* arbitrary sanity check value */
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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_VIDEOTOOLBOX,
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HWACCEL_QSV,
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HWACCEL_VAAPI,
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HWACCEL_CUVID,
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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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enum AVHWDeviceType device_type;
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} HWAccel;
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typedef struct HWDevice {
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char *name;
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enum AVHWDeviceType type;
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AVBufferRef *device_ref;
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} HWDevice;
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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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typedef struct {
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int file_idx, stream_idx, channel_idx; // input
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int ofile_idx, ostream_idx; // output
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} AudioChannelMap;
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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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int64_t start_time_eof;
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int seek_timestamp;
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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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int thread_queue_size;
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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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AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */
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int nb_audio_channel_maps; /* number of (valid) -map_channel settings */
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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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int64_t stop_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 *chroma_intra_matrices;
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int nb_chroma_intra_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 *copy_prior_start;
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int nb_copy_prior_start;
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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 *reinit_filters;
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int nb_reinit_filters;
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SpecifierOpt *fix_sub_duration;
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int nb_fix_sub_duration;
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SpecifierOpt *canvas_sizes;
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int nb_canvas_sizes;
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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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SpecifierOpt *guess_layout_max;
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int nb_guess_layout_max;
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SpecifierOpt *apad;
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int nb_apad;
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SpecifierOpt *discard;
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int nb_discard;
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SpecifierOpt *disposition;
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int nb_disposition;
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SpecifierOpt *program;
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int nb_program;
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SpecifierOpt *time_bases;
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int nb_time_bases;
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SpecifierOpt *enc_time_bases;
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int nb_enc_time_bases;
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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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enum AVMediaType type; // AVMEDIA_TYPE_SUBTITLE for sub2video
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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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int channels;
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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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int reconfiguration;
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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 user_set_discard;
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int decoding_needed; /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
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#define DECODING_FOR_OST 1
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#define DECODING_FOR_FILTER 2
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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 (in AV_TIME_BASE units) */
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int64_t next_dts;
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int64_t dts; ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
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int64_t next_pts; ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
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int64_t pts; ///< current pts of the decoded frame (in AV_TIME_BASE units)
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int wrap_correction_done;
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int64_t filter_in_rescale_delta_last;
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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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// when forcing constant input framerate through -r,
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// this contains the pts that will be given to the next decoded frame
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int64_t cfr_next_pts;
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int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
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double ts_scale;
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int saw_first_ts;
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AVDictionary *decoder_opts;
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AVRational framerate; /* framerate forced with -r */
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int top_field_first;
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int guess_layout_max;
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int autorotate;
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int fix_sub_duration;
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struct { /* previous decoded subtitle and related variables */
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int got_output;
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int ret;
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AVSubtitle subtitle;
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} prev_sub;
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struct sub2video {
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int64_t last_pts;
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int64_t end_pts;
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AVFifoBuffer *sub_queue; ///< queue of AVSubtitle* before filter init
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AVFrame *frame;
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int w, h;
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} sub2video;
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int dr1;
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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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int reinit_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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int64_t *dts_buffer;
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int nb_dts_buffer;
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int got_output;
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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 input_streams */
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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 input_ts_offset;
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int64_t ts_offset;
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int64_t last_ts;
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int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
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int seek_timestamp;
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int64_t recording_time;
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int nb_streams; /* number of stream that ffmpeg 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 nb_streams_warn; /* number of streams that the user was warned of */
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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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AVThreadMessageQueue *in_thread_queue;
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pthread_t thread; /* thread reading from this file */
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int non_blocking; /* reading packets from the thread should not block */
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int joined; /* the thread has been joined */
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int thread_queue_size; /* maximum number of queued packets */
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#endif
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} InputFile;
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enum forced_keyframes_const {
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FKF_N,
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FKF_N_FORCED,
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FKF_PREV_FORCED_N,
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FKF_PREV_FORCED_T,
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FKF_T,
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FKF_NB
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};
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#define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0)
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extern const char *const forced_keyframes_const_names[];
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typedef enum {
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ENCODER_FINISHED = 1,
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MUXER_FINISHED = 2,
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} OSTFinished ;
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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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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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AVRational enc_timebase;
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int nb_bitstream_filters;
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AVBSFContext **bsf_ctx;
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AVCodecContext *enc_ctx;
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AVCodecParameters *ref_par; /* associated input codec parameters with encoders options applied */
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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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AVFrame *last_frame;
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int last_dropped;
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int last_nb0_frames[3];
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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 is_cfr;
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int force_fps;
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int top_field_first;
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int rotate_overridden;
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double rotate_override_value;
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AVRational 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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AVExpr *forced_keyframes_pexpr;
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double forced_keyframes_expr_const_values[FKF_NB];
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/* audio only */
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int *audio_channels_map; /* list of the channels id to pick from the source stream */
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int audio_channels_mapped; /* number of channels in audio_channels_map */
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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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char *filters; ///< filtergraph associated to the -filter option
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char *filters_script; ///< filtergraph script associated to the -filter_script option
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AVDictionary *encoder_opts;
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AVDictionary *sws_dict;
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AVDictionary *swr_opts;
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AVDictionary *resample_opts;
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char *apad;
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OSTFinished finished; /* no more packets should be written for this stream */
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int unavailable; /* true if the steram is unavailable (possibly temporarily) */
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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 bitstream 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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|
|
|
int inputs_done;
|
|
|
|
const char *attachment_filename;
|
|
int copy_initial_nonkeyframes;
|
|
int copy_prior_start;
|
|
char *disposition;
|
|
|
|
int keep_pix_fmt;
|
|
|
|
AVCodecParserContext *parser;
|
|
AVCodecContext *parser_avctx;
|
|
|
|
/* stats */
|
|
// combined size of all the packets written
|
|
uint64_t data_size;
|
|
// number of packets send to the muxer
|
|
uint64_t packets_written;
|
|
// number of frames/samples sent to the encoder
|
|
uint64_t frames_encoded;
|
|
uint64_t samples_encoded;
|
|
|
|
/* packet quality factor */
|
|
int quality;
|
|
|
|
int max_muxing_queue_size;
|
|
|
|
/* the packets are buffered here until the muxer is ready to be initialized */
|
|
AVFifoBuffer *muxing_queue;
|
|
|
|
/* packet picture type */
|
|
int pict_type;
|
|
|
|
/* frame encode sum of squared error values */
|
|
int64_t error[4];
|
|
} OutputStream;
|
|
|
|
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 == AV_TIME_BASE units
|
|
int64_t start_time; ///< start time in microseconds == AV_TIME_BASE units
|
|
uint64_t limit_filesize; /* filesize limit expressed in bytes */
|
|
|
|
int shortest;
|
|
|
|
int header_written;
|
|
} OutputFile;
|
|
|
|
extern InputStream **input_streams;
|
|
extern int nb_input_streams;
|
|
extern InputFile **input_files;
|
|
extern int nb_input_files;
|
|
|
|
extern OutputStream **output_streams;
|
|
extern int nb_output_streams;
|
|
extern OutputFile **output_files;
|
|
extern int nb_output_files;
|
|
|
|
extern FilterGraph **filtergraphs;
|
|
extern int nb_filtergraphs;
|
|
|
|
extern char *vstats_filename;
|
|
extern char *sdp_filename;
|
|
|
|
extern float audio_drift_threshold;
|
|
extern float dts_delta_threshold;
|
|
extern float dts_error_threshold;
|
|
|
|
extern int audio_volume;
|
|
extern int audio_sync_method;
|
|
extern int video_sync_method;
|
|
extern float frame_drop_threshold;
|
|
extern int do_benchmark;
|
|
extern int do_benchmark_all;
|
|
extern int do_deinterlace;
|
|
extern int do_hex_dump;
|
|
extern int do_pkt_dump;
|
|
extern int copy_ts;
|
|
extern int start_at_zero;
|
|
extern int copy_tb;
|
|
extern int debug_ts;
|
|
extern int exit_on_error;
|
|
extern int abort_on_flags;
|
|
extern int print_stats;
|
|
extern int qp_hist;
|
|
extern int stdin_interaction;
|
|
extern int frame_bits_per_raw_sample;
|
|
extern AVIOContext *progress_avio;
|
|
extern float max_error_rate;
|
|
extern char *videotoolbox_pixfmt;
|
|
|
|
extern int filter_nbthreads;
|
|
extern int filter_complex_nbthreads;
|
|
extern int vstats_version;
|
|
|
|
extern const AVIOInterruptCB int_cb;
|
|
|
|
extern const OptionDef options[];
|
|
extern const HWAccel hwaccels[];
|
|
extern int hwaccel_lax_profile_check;
|
|
extern AVBufferRef *hw_device_ctx;
|
|
#if CONFIG_QSV
|
|
extern char *qsv_device;
|
|
#endif
|
|
extern HWDevice *filter_hw_device;
|
|
|
|
|
|
void term_init(void);
|
|
void term_exit(void);
|
|
|
|
void reset_options(OptionsContext *o, int is_input);
|
|
void show_usage(void);
|
|
|
|
void opt_output_file(void *optctx, const char *filename);
|
|
|
|
void remove_avoptions(AVDictionary **a, AVDictionary *b);
|
|
void assert_avoptions(AVDictionary *m);
|
|
|
|
int guess_input_channel_layout(InputStream *ist);
|
|
|
|
enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *avctx, AVCodec *codec, enum AVPixelFormat target);
|
|
void choose_sample_fmt(AVStream *st, AVCodec *codec);
|
|
|
|
int configure_filtergraph(FilterGraph *fg);
|
|
int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out);
|
|
void check_filter_outputs(void);
|
|
int ist_in_filtergraph(FilterGraph *fg, InputStream *ist);
|
|
int filtergraph_is_simple(FilterGraph *fg);
|
|
int init_simple_filtergraph(InputStream *ist, OutputStream *ost);
|
|
int init_complex_filtergraph(FilterGraph *fg);
|
|
|
|
void sub2video_update(InputStream *ist, AVSubtitle *sub);
|
|
|
|
int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame);
|
|
|
|
int ffmpeg_parse_options(int argc, char **argv);
|
|
|
|
int dxva2_init(AVCodecContext *s);
|
|
int vda_init(AVCodecContext *s);
|
|
int videotoolbox_init(AVCodecContext *s);
|
|
int qsv_init(AVCodecContext *s);
|
|
int cuvid_init(AVCodecContext *s);
|
|
|
|
HWDevice *hw_device_get_by_name(const char *name);
|
|
int hw_device_init_from_string(const char *arg, HWDevice **dev);
|
|
void hw_device_free_all(void);
|
|
|
|
int hw_device_setup_for_decode(InputStream *ist);
|
|
int hw_device_setup_for_encode(OutputStream *ost);
|
|
|
|
int hwaccel_decode_init(AVCodecContext *avctx);
|
|
|
|
#endif /* FFMPEG_H */
|