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ffmpeg/avconv.h

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/*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCONV_H
#define AVCONV_H
#include "config.h"
#include <stdint.h>
#include <stdio.h>
#if HAVE_PTHREADS
#include <pthread.h>
#endif
#include "cmdutils.h"
#include "libavformat/avformat.h"
#include "libavformat/avio.h"
#include "libavcodec/avcodec.h"
#include "libavfilter/avfilter.h"
#include "libavfilter/avfiltergraph.h"
#include "libavutil/avutil.h"
#include "libavutil/dict.h"
#include "libavutil/fifo.h"
#include "libavutil/pixfmt.h"
#include "libavutil/rational.h"
#define VSYNC_AUTO -1
#define VSYNC_PASSTHROUGH 0
#define VSYNC_CFR 1
#define VSYNC_VFR 2
/* 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;
char *linklabel; /* name of an output link, for mapping lavfi outputs */
} StreamMap;
/* select an input file for an output file */
typedef struct MetadataMap {
int file; // file index
char type; // type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
int index; // stream/chapter/program number
} MetadataMap;
typedef struct OptionsContext {
OptionGroup *g;
/* 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 *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;
/* 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 shortest;
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 *metadata_map;
int nb_metadata_map;
SpecifierOpt *presets;
int nb_presets;
SpecifierOpt *copy_initial_nonkeyframes;
int nb_copy_initial_nonkeyframes;
SpecifierOpt *filters;
int nb_filters;
SpecifierOpt *filter_scripts;
int nb_filter_scripts;
SpecifierOpt *pass;
int nb_pass;
SpecifierOpt *passlogfiles;
int nb_passlogfiles;
} OptionsContext;
typedef struct InputFilter {
AVFilterContext *filter;
struct InputStream *ist;
struct FilterGraph *graph;
uint8_t *name;
} InputFilter;
typedef struct OutputFilter {
AVFilterContext *filter;
struct OutputStream *ost;
struct FilterGraph *graph;
uint8_t *name;
/* temporary storage until stream maps are processed */
AVFilterInOut *out_tmp;
} OutputFilter;
typedef struct FilterGraph {
int index;
const char *graph_desc;
AVFilterGraph *graph;
InputFilter **inputs;
int nb_inputs;
OutputFilter **outputs;
int nb_outputs;
} FilterGraph;
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;
AVFrame *decoded_frame;
AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
int64_t start; /* time when read started */
/* predicted dts of the next packet read for this stream or (when there are
* several frames in a packet) of the next frame in current packet */
int64_t next_dts;
/* dts of the last packet read for this stream */
int64_t last_dts;
PtsCorrectionContext pts_ctx;
double ts_scale;
int is_start; /* is 1 at the start and after a discontinuity */
int showed_multi_packet_warning;
AVDictionary *opts;
AVRational framerate; /* framerate forced with -r */
int resample_height;
int resample_width;
int resample_pix_fmt;
int resample_sample_fmt;
int resample_sample_rate;
int resample_channels;
uint64_t resample_channel_layout;
/* decoded data from this stream goes into all those filters
* currently video and audio only */
InputFilter **filters;
int nb_filters;
} InputStream;
typedef struct InputFile {
AVFormatContext *ctx;
int eof_reached; /* true if eof reached */
int eagain; /* true if last read attempt returned EAGAIN */
int ist_index; /* index of first stream in ist_table */
int64_t ts_offset;
int nb_streams; /* number of stream that avconv is aware of; may be different
from ctx.nb_streams if new streams appear during av_read_frame() */
int rate_emu;
#if HAVE_PTHREADS
pthread_t thread; /* thread reading from this file */
int finished; /* the thread has exited */
int joined; /* the thread has been joined */
pthread_mutex_t fifo_lock; /* lock for access to fifo */
pthread_cond_t fifo_cond; /* the main thread will signal on this cond after reading from fifo */
AVFifoBuffer *fifo; /* demuxed packets are stored here; freed by the main thread */
#endif
} 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
/* pts of the first frame encoded for this stream, used for limiting
* recording time */
int64_t first_pts;
AVBitStreamFilterContext *bitstream_filters;
AVCodec *enc;
int64_t max_frames;
AVFrame *filtered_frame;
/* video only */
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;
char *forced_keyframes;
char *logfile_prefix;
FILE *logfile;
OutputFilter *filter;
char *avfilter;
int64_t sws_flags;
AVDictionary *opts;
AVDictionary *resample_opts;
int finished; /* no more packets should be written for this stream */
int stream_copy;
const char *attachment_filename;
int copy_initial_nonkeyframes;
enum AVPixelFormat pix_fmts[2];
} 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 */
int64_t start_time; /* start time in microseconds */
uint64_t limit_filesize;
int shortest;
} 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 float audio_drift_threshold;
extern float dts_delta_threshold;
extern int audio_volume;
extern int audio_sync_method;
extern int video_sync_method;
extern int do_benchmark;
extern int do_deinterlace;
extern int do_hex_dump;
extern int do_pkt_dump;
extern int copy_ts;
extern int copy_tb;
extern int exit_on_error;
extern int print_stats;
extern int qp_hist;
extern const AVIOInterruptCB int_cb;
extern const OptionDef options[];
void reset_options(OptionsContext *o);
void show_usage(void);
int opt_cpuflags(void *optctx, const char *opt, const char *arg);
void opt_output_file(void *optctx, const char *filename);
void assert_avoptions(AVDictionary *m);
int guess_input_channel_layout(InputStream *ist);
int configure_filtergraph(FilterGraph *fg);
int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out);
int ist_in_filtergraph(FilterGraph *fg, InputStream *ist);
FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost);
int avconv_parse_options(int argc, char **argv);
#endif /* AVCONV_H */
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