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n6.1.3
fftools/ffmpeg.h
956 строк
26 KB
Anton Khirnov
fftools/ffmpeg: prefer real errors over EOF in err_merge()
24 июл 2024, 09:26
24 июл 2024, 09:26
159270e
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/* * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef FFTOOLS_FFMPEG_H #define FFTOOLS_FFMPEG_H #include "config.h" #include <stdatomic.h> #include <stdint.h> #include <stdio.h> #include <signal.h> #include "cmdutils.h" #include "sync_queue.h" #include "libavformat/avformat.h" #include "libavformat/avio.h" #include "libavcodec/avcodec.h" #include "libavcodec/bsf.h" #include "libavfilter/avfilter.h" #include "libavutil/avutil.h" #include "libavutil/dict.h" #include "libavutil/eval.h" #include "libavutil/fifo.h" #include "libavutil/hwcontext.h" #include "libavutil/pixfmt.h" #include "libavutil/rational.h" #include "libavutil/thread.h" #include "libavutil/threadmessage.h" #include "libswresample/swresample.h" // deprecated features #define FFMPEG_OPT_PSNR 1 #define FFMPEG_OPT_MAP_CHANNEL 1 #define FFMPEG_OPT_MAP_SYNC 1 #define FFMPEG_ROTATION_METADATA 1 #define FFMPEG_OPT_QPHIST 1 #define FFMPEG_OPT_ADRIFT_THRESHOLD 1 #define FFMPEG_OPT_ENC_TIME_BASE_NUM 1 #define FFMPEG_OPT_TOP 1 #define FFMPEG_OPT_FORCE_KF_SOURCE_NO_DROP 1 enum VideoSyncMethod { VSYNC_AUTO = -1, VSYNC_PASSTHROUGH, VSYNC_CFR, VSYNC_VFR, VSYNC_VSCFR, VSYNC_DROP, }; enum EncTimeBase { ENC_TIME_BASE_DEMUX = -1, ENC_TIME_BASE_FILTER = -2, }; enum HWAccelID { HWACCEL_NONE = 0, HWACCEL_AUTO, HWACCEL_GENERIC, }; typedef struct HWDevice { const char *name; enum AVHWDeviceType type; AVBufferRef *device_ref; } HWDevice; /* 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; char *linklabel; /* name of an output link, for mapping lavfi outputs */ } StreamMap; #if FFMPEG_OPT_MAP_CHANNEL typedef struct { int file_idx, stream_idx, channel_idx; // input int ofile_idx, ostream_idx; // output } AudioChannelMap; #endif typedef struct DemuxPktData { // estimated dts in AV_TIME_BASE_Q, // to be used when real dts is missing int64_t dts_est; } DemuxPktData; typedef struct OptionsContext { OptionGroup *g; /* input/output options */ int64_t start_time; int64_t start_time_eof; int seek_timestamp; const char *format; SpecifierOpt *codec_names; int nb_codec_names; SpecifierOpt *audio_ch_layouts; int nb_audio_ch_layouts; SpecifierOpt *audio_channels; int nb_audio_channels; SpecifierOpt *audio_sample_rate; int nb_audio_sample_rate; SpecifierOpt *frame_rates; int nb_frame_rates; SpecifierOpt *max_frame_rates; int nb_max_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 loop; int rate_emu; float readrate; double readrate_initial_burst; int accurate_seek; int thread_queue_size; int input_sync_ref; int find_stream_info; SpecifierOpt *ts_scale; int nb_ts_scale; SpecifierOpt *dump_attachment; int nb_dump_attachment; SpecifierOpt *hwaccels; int nb_hwaccels; SpecifierOpt *hwaccel_devices; int nb_hwaccel_devices; SpecifierOpt *hwaccel_output_formats; int nb_hwaccel_output_formats; SpecifierOpt *autorotate; int nb_autorotate; /* output options */ StreamMap *stream_maps; int nb_stream_maps; #if FFMPEG_OPT_MAP_CHANNEL AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */ int nb_audio_channel_maps; /* number of (valid) -map_channel settings */ #endif const char **attachments; int nb_attachments; int chapters_input_file; int64_t recording_time; int64_t stop_time; int64_t limit_filesize; float mux_preload; float mux_max_delay; float shortest_buf_duration; int shortest; int bitexact; int video_disable; int audio_disable; int subtitle_disable; int data_disable; // keys are stream indices AVDictionary *streamid; 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 *fps_mode; int nb_fps_mode; SpecifierOpt *force_fps; int nb_force_fps; SpecifierOpt *frame_aspect_ratios; int nb_frame_aspect_ratios; SpecifierOpt *display_rotations; int nb_display_rotations; SpecifierOpt *display_hflips; int nb_display_hflips; SpecifierOpt *display_vflips; int nb_display_vflips; SpecifierOpt *rc_overrides; int nb_rc_overrides; SpecifierOpt *intra_matrices; int nb_intra_matrices; SpecifierOpt *inter_matrices; int nb_inter_matrices; SpecifierOpt *chroma_intra_matrices; int nb_chroma_intra_matrices; #if FFMPEG_OPT_TOP SpecifierOpt *top_field_first; int nb_top_field_first; #endif SpecifierOpt *metadata_map; int nb_metadata_map; SpecifierOpt *presets; int nb_presets; SpecifierOpt *copy_initial_nonkeyframes; int nb_copy_initial_nonkeyframes; SpecifierOpt *copy_prior_start; int nb_copy_prior_start; SpecifierOpt *filters; int nb_filters; SpecifierOpt *filter_scripts; int nb_filter_scripts; SpecifierOpt *reinit_filters; int nb_reinit_filters; SpecifierOpt *fix_sub_duration; int nb_fix_sub_duration; SpecifierOpt *fix_sub_duration_heartbeat; int nb_fix_sub_duration_heartbeat; SpecifierOpt *canvas_sizes; int nb_canvas_sizes; SpecifierOpt *pass; int nb_pass; SpecifierOpt *passlogfiles; int nb_passlogfiles; SpecifierOpt *max_muxing_queue_size; int nb_max_muxing_queue_size; SpecifierOpt *muxing_queue_data_threshold; int nb_muxing_queue_data_threshold; SpecifierOpt *guess_layout_max; int nb_guess_layout_max; SpecifierOpt *apad; int nb_apad; SpecifierOpt *discard; int nb_discard; SpecifierOpt *disposition; int nb_disposition; SpecifierOpt *program; int nb_program; SpecifierOpt *time_bases; int nb_time_bases; SpecifierOpt *enc_time_bases; int nb_enc_time_bases; SpecifierOpt *autoscale; int nb_autoscale; SpecifierOpt *bits_per_raw_sample; int nb_bits_per_raw_sample; SpecifierOpt *enc_stats_pre; int nb_enc_stats_pre; SpecifierOpt *enc_stats_post; int nb_enc_stats_post; SpecifierOpt *mux_stats; int nb_mux_stats; SpecifierOpt *enc_stats_pre_fmt; int nb_enc_stats_pre_fmt; SpecifierOpt *enc_stats_post_fmt; int nb_enc_stats_post_fmt; SpecifierOpt *mux_stats_fmt; int nb_mux_stats_fmt; } OptionsContext; typedef struct InputFilter { struct FilterGraph *graph; uint8_t *name; } InputFilter; typedef struct OutputFilter { struct OutputStream *ost; struct FilterGraph *graph; uint8_t *name; /* for filters that are not yet bound to an output stream, * this stores the output linklabel, if any */ uint8_t *linklabel; enum AVMediaType type; /* pts of the last frame received from this filter, in AV_TIME_BASE_Q */ int64_t last_pts; uint64_t nb_frames_dup; uint64_t nb_frames_drop; } OutputFilter; typedef struct FilterGraph { const AVClass *class; int index; AVFilterGraph *graph; InputFilter **inputs; int nb_inputs; OutputFilter **outputs; int nb_outputs; } FilterGraph; typedef struct Decoder Decoder; typedef struct InputStream { const AVClass *class; int file_index; int index; AVStream *st; int discard; /* true if stream data should be discarded */ int user_set_discard; int decoding_needed; /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */ #define DECODING_FOR_OST 1 #define DECODING_FOR_FILTER 2 /** * Codec parameters - to be used by the decoding/streamcopy code. * st->codecpar should not be accessed, because it may be modified * concurrently by the demuxing thread. */ AVCodecParameters *par; Decoder *decoder; AVCodecContext *dec_ctx; const AVCodec *dec; const AVCodecDescriptor *codec_desc; AVRational framerate_guessed; int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */ AVDictionary *decoder_opts; AVRational framerate; /* framerate forced with -r */ #if FFMPEG_OPT_TOP int top_field_first; #endif int autorotate; int fix_sub_duration; struct sub2video { int w, h; } sub2video; /* decoded data from this stream goes into all those filters * currently video and audio only */ InputFilter **filters; int nb_filters; /* * Output targets that do not go through lavfi, i.e. subtitles or * streamcopy. Those two cases are distinguished by the OutputStream * having an encoder or not. */ struct OutputStream **outputs; int nb_outputs; int reinit_filters; /* hwaccel options */ enum HWAccelID hwaccel_id; enum AVHWDeviceType hwaccel_device_type; char *hwaccel_device; enum AVPixelFormat hwaccel_output_format; /* stats */ // number of frames/samples retrieved from the decoder uint64_t frames_decoded; uint64_t samples_decoded; uint64_t decode_errors; } InputStream; typedef struct LastFrameDuration { int stream_idx; int64_t duration; } LastFrameDuration; typedef struct InputFile { const AVClass *class; int index; // input format has no timestamps int format_nots; AVFormatContext *ctx; int eof_reached; /* true if eof reached */ int eagain; /* true if last read attempt returned EAGAIN */ int64_t input_ts_offset; int input_sync_ref; /** * Effective format start time based on enabled streams. */ int64_t start_time_effective; int64_t ts_offset; int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */ int64_t recording_time; /* streams that ffmpeg is aware of; * there may be extra streams in ctx that are not mapped to an InputStream * if new streams appear dynamically during demuxing */ InputStream **streams; int nb_streams; float readrate; int accurate_seek; /* when looping the input file, this queue is used by decoders to report * the last frame duration back to the demuxer thread */ AVThreadMessageQueue *audio_duration_queue; int audio_duration_queue_size; } InputFile; enum forced_keyframes_const { FKF_N, FKF_N_FORCED, FKF_PREV_FORCED_N, FKF_PREV_FORCED_T, FKF_T, FKF_NB }; #define ABORT_ON_FLAG_EMPTY_OUTPUT (1 << 0) #define ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM (1 << 1) enum EncStatsType { ENC_STATS_LITERAL = 0, ENC_STATS_FILE_IDX, ENC_STATS_STREAM_IDX, ENC_STATS_FRAME_NUM, ENC_STATS_FRAME_NUM_IN, ENC_STATS_TIMEBASE, ENC_STATS_TIMEBASE_IN, ENC_STATS_PTS, ENC_STATS_PTS_TIME, ENC_STATS_PTS_IN, ENC_STATS_PTS_TIME_IN, ENC_STATS_DTS, ENC_STATS_DTS_TIME, ENC_STATS_SAMPLE_NUM, ENC_STATS_NB_SAMPLES, ENC_STATS_PKT_SIZE, ENC_STATS_BITRATE, ENC_STATS_AVG_BITRATE, }; typedef struct EncStatsComponent { enum EncStatsType type; uint8_t *str; size_t str_len; } EncStatsComponent; typedef struct EncStats { EncStatsComponent *components; int nb_components; AVIOContext *io; } EncStats; extern const char *const forced_keyframes_const_names[]; typedef enum { ENCODER_FINISHED = 1, MUXER_FINISHED = 2, } OSTFinished ; enum { KF_FORCE_SOURCE = 1, #if FFMPEG_OPT_FORCE_KF_SOURCE_NO_DROP KF_FORCE_SOURCE_NO_DROP = 2, #endif }; typedef struct KeyframeForceCtx { int type; int64_t ref_pts; // timestamps of the forced keyframes, in AV_TIME_BASE_Q int64_t *pts; int nb_pts; int index; AVExpr *pexpr; double expr_const_values[FKF_NB]; int dropped_keyframe; } KeyframeForceCtx; typedef struct Encoder Encoder; typedef struct OutputStream { const AVClass *class; enum AVMediaType type; int file_index; /* file index */ int index; /* stream index in the output file */ /** * Codec parameters for packets submitted to the muxer (i.e. before * bitstream filtering, if any). */ AVCodecParameters *par_in; /* input stream that is the source for this output stream; * may be NULL for streams with no well-defined source, e.g. * attachments or outputs from complex filtergraphs */ InputStream *ist; AVStream *st; /* stream in the output file */ /* dts of the last packet sent to the muxing queue, in AV_TIME_BASE_Q */ int64_t last_mux_dts; AVRational enc_timebase; Encoder *enc; AVCodecContext *enc_ctx; /* video only */ AVRational frame_rate; AVRational max_frame_rate; enum VideoSyncMethod vsync_method; int is_cfr; int force_fps; #if FFMPEG_OPT_TOP int top_field_first; #endif #if FFMPEG_ROTATION_METADATA int rotate_overridden; #endif int autoscale; int bitexact; int bits_per_raw_sample; #if FFMPEG_ROTATION_METADATA double rotate_override_value; #endif AVRational frame_aspect_ratio; KeyframeForceCtx kf; /* audio only */ #if FFMPEG_OPT_MAP_CHANNEL int *audio_channels_map; /* list of the channels id to pick from the source stream */ int audio_channels_mapped; /* number of channels in audio_channels_map */ #endif char *logfile_prefix; FILE *logfile; OutputFilter *filter; AVDictionary *encoder_opts; AVDictionary *sws_dict; AVDictionary *swr_opts; char *apad; OSTFinished finished; /* no more packets should be written for this stream */ int unavailable; /* true if the steram is unavailable (possibly temporarily) */ // init_output_stream() has been called for this stream // The encoder and the bitstream filters have been initialized and the stream // parameters are set in the AVStream. int initialized; const char *attachment_filename; int keep_pix_fmt; /* stats */ // number of packets send to the muxer atomic_uint_least64_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 sq_idx_encode; int sq_idx_mux; EncStats enc_stats_pre; EncStats enc_stats_post; /* * bool on whether this stream should be utilized for splitting * subtitles utilizing fix_sub_duration at random access points. */ unsigned int fix_sub_duration_heartbeat; } OutputStream; typedef struct OutputFile { const AVClass *class; int index; const AVOutputFormat *format; const char *url; OutputStream **streams; int nb_streams; SyncQueue *sq_encode; 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 int shortest; int bitexact; } OutputFile; // optionally attached as opaque_ref to decoded AVFrames typedef struct FrameData { // properties that come from the decoder struct { uint64_t frame_num; int64_t pts; AVRational tb; } dec; AVRational frame_rate_filter; int bits_per_raw_sample; } FrameData; extern InputFile **input_files; extern int nb_input_files; 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 dts_delta_threshold; extern float dts_error_threshold; extern enum VideoSyncMethod video_sync_method; extern float frame_drop_threshold; extern int do_benchmark; extern int do_benchmark_all; 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 int64_t stats_period; extern int stdin_interaction; extern AVIOContext *progress_avio; extern float max_error_rate; extern char *filter_nbthreads; extern int filter_complex_nbthreads; extern int vstats_version; extern int auto_conversion_filters; extern const AVIOInterruptCB int_cb; extern const OptionDef options[]; extern HWDevice *filter_hw_device; extern unsigned nb_output_dumped; extern int ignore_unknown_streams; extern int copy_unknown_streams; extern int recast_media; extern FILE *vstats_file; #if FFMPEG_OPT_PSNR extern int do_psnr; #endif void term_init(void); void term_exit(void); void show_usage(void); void remove_avoptions(AVDictionary **a, AVDictionary *b); int check_avoptions(AVDictionary *m); int assert_file_overwrite(const char *filename); char *file_read(const char *filename); AVDictionary *strip_specifiers(const AVDictionary *dict); int find_codec(void *logctx, const char *name, enum AVMediaType type, int encoder, const AVCodec **codec); int parse_and_set_vsync(const char *arg, int *vsync_var, int file_idx, int st_idx, int is_global); int check_filter_outputs(void); int filtergraph_is_simple(const FilterGraph *fg); int init_simple_filtergraph(InputStream *ist, OutputStream *ost, char *graph_desc); int init_complex_filtergraph(FilterGraph *fg); int copy_av_subtitle(AVSubtitle *dst, const AVSubtitle *src); int subtitle_wrap_frame(AVFrame *frame, AVSubtitle *subtitle, int copy); /** * Get our axiliary frame data attached to the frame, allocating it * if needed. */ FrameData *frame_data(AVFrame *frame); int ifilter_send_frame(InputFilter *ifilter, AVFrame *frame, int keep_reference); int ifilter_send_eof(InputFilter *ifilter, int64_t pts, AVRational tb); int ifilter_sub2video(InputFilter *ifilter, const AVFrame *frame); void ifilter_sub2video_heartbeat(InputFilter *ifilter, int64_t pts, AVRational tb); /** * Set up fallback filtering parameters from a decoder context. They will only * be used if no frames are ever sent on this input, otherwise the actual * parameters are taken from the frame. */ int ifilter_parameters_from_dec(InputFilter *ifilter, const AVCodecContext *dec); int ofilter_bind_ost(OutputFilter *ofilter, OutputStream *ost); /** * Create a new filtergraph in the global filtergraph list. * * @param graph_desc Graph description; an av_malloc()ed string, filtergraph * takes ownership of it. */ int fg_create(FilterGraph **pfg, char *graph_desc); void fg_free(FilterGraph **pfg); /** * Perform a step of transcoding for the specified filter graph. * * @param[in] graph filter graph to consider * @param[out] best_ist input stream where a frame would allow to continue * @return 0 for success, <0 for error */ int fg_transcode_step(FilterGraph *graph, InputStream **best_ist); void fg_send_command(FilterGraph *fg, double time, const char *target, const char *command, const char *arg, int all_filters); /** * Get and encode new output from specified filtergraph, without causing * activity. * * @return 0 for success, <0 for severe errors */ int reap_filters(FilterGraph *fg, int flush); int ffmpeg_parse_options(int argc, char **argv); void enc_stats_write(OutputStream *ost, EncStats *es, const AVFrame *frame, const AVPacket *pkt, uint64_t frame_num); HWDevice *hw_device_get_by_name(const char *name); HWDevice *hw_device_get_by_type(enum AVHWDeviceType type); int hw_device_init_from_string(const char *arg, HWDevice **dev); int hw_device_init_from_type(enum AVHWDeviceType type, const char *device, HWDevice **dev_out); void hw_device_free_all(void); /** * Get a hardware device to be used with this filtergraph. * The returned reference is owned by the callee, the caller * must ref it explicitly for long-term use. */ AVBufferRef *hw_device_for_filter(void); int hwaccel_retrieve_data(AVCodecContext *avctx, AVFrame *input); int dec_open(InputStream *ist); void dec_free(Decoder **pdec); /** * Submit a packet for decoding * * When pkt==NULL and no_eof=0, there will be no more input. Flush decoders and * mark all downstreams as finished. * * When pkt==NULL and no_eof=1, the stream was reset (e.g. after a seek). Flush * decoders and await further input. */ int dec_packet(InputStream *ist, const AVPacket *pkt, int no_eof); int enc_alloc(Encoder **penc, const AVCodec *codec); void enc_free(Encoder **penc); int enc_open(OutputStream *ost, const AVFrame *frame); int enc_subtitle(OutputFile *of, OutputStream *ost, const AVSubtitle *sub); int enc_frame(OutputStream *ost, AVFrame *frame); int enc_flush(void); /* * Initialize muxing state for the given stream, should be called * after the codec/streamcopy setup has been done. * * Open the muxer once all the streams have been initialized. */ int of_stream_init(OutputFile *of, OutputStream *ost); int of_write_trailer(OutputFile *of); int of_open(const OptionsContext *o, const char *filename); void of_free(OutputFile **pof); void of_enc_stats_close(void); int of_output_packet(OutputFile *of, OutputStream *ost, AVPacket *pkt); /** * @param dts predicted packet dts in AV_TIME_BASE_Q */ int of_streamcopy(OutputStream *ost, const AVPacket *pkt, int64_t dts); int64_t of_filesize(OutputFile *of); int ifile_open(const OptionsContext *o, const char *filename); void ifile_close(InputFile **f); /** * Get next input packet from the demuxer. * * @param pkt the packet is written here when this function returns 0 * @return * - 0 when a packet has been read successfully * - 1 when stream end was reached, but the stream is looped; * caller should flush decoders and read from this demuxer again * - a negative error code on failure */ int ifile_get_packet(InputFile *f, AVPacket **pkt); int ist_output_add(InputStream *ist, OutputStream *ost); int ist_filter_add(InputStream *ist, InputFilter *ifilter, int is_simple); /** * Find an unused input stream of given type. */ InputStream *ist_find_unused(enum AVMediaType type); /* iterate over all input streams in all input files; * pass NULL to start iteration */ InputStream *ist_iter(InputStream *prev); /* iterate over all output streams in all output files; * pass NULL to start iteration */ OutputStream *ost_iter(OutputStream *prev); void close_output_stream(OutputStream *ost); int trigger_fix_sub_duration_heartbeat(OutputStream *ost, const AVPacket *pkt); int fix_sub_duration_heartbeat(InputStream *ist, int64_t signal_pts); void update_benchmark(const char *fmt, ...); /** * Merge two return codes - return one of the error codes if at least one of * them was negative, 0 otherwise. */ static inline int err_merge(int err0, int err1) { // prefer "real" errors over EOF if ((err0 >= 0 || err0 == AVERROR_EOF) && err1 < 0) return err1; return (err0 < 0) ? err0 : FFMIN(err1, 0); } #define SPECIFIER_OPT_FMT_str "%s" #define SPECIFIER_OPT_FMT_i "%i" #define SPECIFIER_OPT_FMT_i64 "%"PRId64 #define SPECIFIER_OPT_FMT_ui64 "%"PRIu64 #define SPECIFIER_OPT_FMT_f "%f" #define SPECIFIER_OPT_FMT_dbl "%lf" #define WARN_MULTIPLE_OPT_USAGE(name, type, so, st)\ {\ char namestr[128] = "";\ const char *spec = so->specifier && so->specifier[0] ? so->specifier : "";\ for (int _i = 0; opt_name_##name[_i]; _i++)\ av_strlcatf(namestr, sizeof(namestr), "-%s%s", opt_name_##name[_i], opt_name_##name[_i+1] ? (opt_name_##name[_i+2] ? ", " : " or ") : "");\ av_log(NULL, AV_LOG_WARNING, "Multiple %s options specified for stream %d, only the last option '-%s%s%s "SPECIFIER_OPT_FMT_##type"' will be used.\n",\ namestr, st->index, opt_name_##name[0], spec[0] ? ":" : "", spec, so->u.type);\ } #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\ {\ int _ret, _matches = 0;\ SpecifierOpt *so;\ for (int _i = 0; _i < o->nb_ ## name; _i++) {\ char *spec = o->name[_i].specifier;\ if ((_ret = check_stream_specifier(fmtctx, st, spec)) > 0) {\ outvar = o->name[_i].u.type;\ so = &o->name[_i];\ _matches++;\ } else if (_ret < 0)\ return _ret;\ }\ if (_matches > 1)\ WARN_MULTIPLE_OPT_USAGE(name, type, so, st);\ } #define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\ {\ int i;\ for (i = 0; i < o->nb_ ## name; i++) {\ char *spec = o->name[i].specifier;\ if (!strcmp(spec, mediatype))\ outvar = o->name[i].u.type;\ }\ } extern const char * const opt_name_codec_names[]; extern const char * const opt_name_codec_tags[]; extern const char * const opt_name_frame_rates[]; #if FFMPEG_OPT_TOP extern const char * const opt_name_top_field_first[]; #endif static inline void pkt_move(void *dst, void *src) { av_packet_move_ref(dst, src); } static inline void frame_move(void *dst, void *src) { av_frame_move_ref(dst, src); } #endif /* FFTOOLS_FFMPEG_H */