/* * 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 #include #if HAVE_PTHREADS #include #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 { /* 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 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; } 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; 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; /* a pool of free buffers for decoded data */ FrameBuffer *buffer_pool; /* 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 ist_index; /* index of first stream in ist_table */ int buffer_size; /* current total buffer size */ 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; float last_quality; /* forced key frames */ int64_t *forced_kf_pts; int forced_kf_count; int forced_kf_index; char *forced_keyframes; FILE *logfile; OutputFilter *filter; char *avfilter; int64_t sws_flags; AVDictionary *opts; int is_past_recording_time; int stream_copy; const char *attachment_filename; int copy_initial_nonkeyframes; enum PixelFormat 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; } 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 *pass_logfilename_prefix; 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 opt_shortest; extern int exit_on_error; extern int print_stats; extern int qp_hist; extern int same_quant; extern const AVIOInterruptCB int_cb; extern const OptionDef options[]; void reset_options(OptionsContext *o); void show_usage(void); int opt_cpuflags(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); #endif /* AVCONV_H */