| /* |
| * 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 "ffmpeg_sched.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_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 |
| #define FFMPEG_OPT_VSYNC_DROP 1 |
| #define FFMPEG_OPT_VSYNC 1 |
| #define FFMPEG_OPT_FILTER_SCRIPT 1 |
| |
| #define FFMPEG_ERROR_RATE_EXCEEDED FFERRTAG('E', 'R', 'E', 'D') |
| |
| enum VideoSyncMethod { |
| VSYNC_AUTO = -1, |
| VSYNC_PASSTHROUGH, |
| VSYNC_CFR, |
| VSYNC_VFR, |
| VSYNC_VSCFR, |
| #if FFMPEG_OPT_VSYNC_DROP |
| VSYNC_DROP, |
| #endif |
| }; |
| |
| enum EncTimeBase { |
| ENC_TIME_BASE_DEMUX = -1, |
| ENC_TIME_BASE_FILTER = -2, |
| }; |
| |
| enum HWAccelID { |
| HWACCEL_NONE = 0, |
| HWACCEL_AUTO, |
| HWACCEL_GENERIC, |
| }; |
| |
| enum FrameOpaque { |
| FRAME_OPAQUE_SUB_HEARTBEAT = 1, |
| FRAME_OPAQUE_EOF, |
| FRAME_OPAQUE_SEND_COMMAND, |
| }; |
| |
| enum PacketOpaque { |
| PKT_OPAQUE_SUB_HEARTBEAT = 1, |
| PKT_OPAQUE_FIX_SUB_DURATION, |
| }; |
| |
| enum LatencyProbe { |
| LATENCY_PROBE_DEMUX, |
| LATENCY_PROBE_DEC_PRE, |
| LATENCY_PROBE_DEC_POST, |
| LATENCY_PROBE_FILTER_PRE, |
| LATENCY_PROBE_FILTER_POST, |
| LATENCY_PROBE_ENC_PRE, |
| LATENCY_PROBE_ENC_POST, |
| LATENCY_PROBE_NB, |
| }; |
| |
| 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; |
| |
| typedef struct OptionsContext { |
| OptionGroup *g; |
| |
| /* input/output options */ |
| int64_t start_time; |
| int64_t start_time_eof; |
| int seek_timestamp; |
| const char *format; |
| |
| SpecifierOptList codec_names; |
| SpecifierOptList audio_ch_layouts; |
| SpecifierOptList audio_channels; |
| SpecifierOptList audio_sample_rate; |
| SpecifierOptList frame_rates; |
| SpecifierOptList max_frame_rates; |
| SpecifierOptList frame_sizes; |
| SpecifierOptList 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; |
| |
| SpecifierOptList ts_scale; |
| SpecifierOptList dump_attachment; |
| SpecifierOptList hwaccels; |
| SpecifierOptList hwaccel_devices; |
| SpecifierOptList hwaccel_output_formats; |
| SpecifierOptList autorotate; |
| |
| /* output options */ |
| StreamMap *stream_maps; |
| int nb_stream_maps; |
| 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; |
| |
| SpecifierOptList metadata; |
| SpecifierOptList max_frames; |
| SpecifierOptList bitstream_filters; |
| SpecifierOptList codec_tags; |
| SpecifierOptList sample_fmts; |
| SpecifierOptList qscale; |
| SpecifierOptList forced_key_frames; |
| SpecifierOptList fps_mode; |
| SpecifierOptList force_fps; |
| SpecifierOptList frame_aspect_ratios; |
| SpecifierOptList display_rotations; |
| SpecifierOptList display_hflips; |
| SpecifierOptList display_vflips; |
| SpecifierOptList rc_overrides; |
| SpecifierOptList intra_matrices; |
| SpecifierOptList inter_matrices; |
| SpecifierOptList chroma_intra_matrices; |
| #if FFMPEG_OPT_TOP |
| SpecifierOptList top_field_first; |
| #endif |
| SpecifierOptList metadata_map; |
| SpecifierOptList presets; |
| SpecifierOptList copy_initial_nonkeyframes; |
| SpecifierOptList copy_prior_start; |
| SpecifierOptList filters; |
| #if FFMPEG_OPT_FILTER_SCRIPT |
| SpecifierOptList filter_scripts; |
| #endif |
| SpecifierOptList reinit_filters; |
| SpecifierOptList fix_sub_duration; |
| SpecifierOptList fix_sub_duration_heartbeat; |
| SpecifierOptList canvas_sizes; |
| SpecifierOptList pass; |
| SpecifierOptList passlogfiles; |
| SpecifierOptList max_muxing_queue_size; |
| SpecifierOptList muxing_queue_data_threshold; |
| SpecifierOptList guess_layout_max; |
| SpecifierOptList apad; |
| SpecifierOptList discard; |
| SpecifierOptList disposition; |
| SpecifierOptList program; |
| SpecifierOptList stream_groups; |
| SpecifierOptList time_bases; |
| SpecifierOptList enc_time_bases; |
| SpecifierOptList autoscale; |
| SpecifierOptList bits_per_raw_sample; |
| SpecifierOptList enc_stats_pre; |
| SpecifierOptList enc_stats_post; |
| SpecifierOptList mux_stats; |
| SpecifierOptList enc_stats_pre_fmt; |
| SpecifierOptList enc_stats_post_fmt; |
| SpecifierOptList mux_stats_fmt; |
| } OptionsContext; |
| |
| enum IFilterFlags { |
| IFILTER_FLAG_AUTOROTATE = (1 << 0), |
| IFILTER_FLAG_REINIT = (1 << 1), |
| IFILTER_FLAG_CFR = (1 << 2), |
| }; |
| |
| typedef struct InputFilterOptions { |
| int64_t trim_start_us; |
| int64_t trim_end_us; |
| |
| uint8_t *name; |
| |
| /* When IFILTER_FLAG_CFR is set, the stream is guaranteed to be CFR with |
| * this framerate. |
| * |
| * Otherwise, this is an estimate that should not be relied upon to be |
| * accurate */ |
| AVRational framerate; |
| |
| int sub2video_width; |
| int sub2video_height; |
| |
| // a combination of IFILTER_FLAG_* |
| unsigned flags; |
| |
| AVFrame *fallback; |
| } InputFilterOptions; |
| |
| enum OFilterFlags { |
| OFILTER_FLAG_DISABLE_CONVERT = (1 << 0), |
| // produce 24-bit audio |
| OFILTER_FLAG_AUDIO_24BIT = (1 << 1), |
| OFILTER_FLAG_AUTOSCALE = (1 << 2), |
| }; |
| |
| typedef struct OutputFilterOptions { |
| // Caller-provided name for this output |
| char *name; |
| |
| // Codec used for encoding, may be NULL |
| const AVCodec *enc; |
| // Overrides encoder pixel formats when set. |
| const enum AVPixelFormat *pix_fmts; |
| |
| int64_t trim_start_us; |
| int64_t trim_duration_us; |
| int64_t ts_offset; |
| |
| /* Desired output timebase. |
| * Numerator can be one of EncTimeBase values, or 0 when no preference. |
| */ |
| AVRational output_tb; |
| |
| AVDictionary *sws_opts; |
| AVDictionary *swr_opts; |
| |
| const char *nb_threads; |
| |
| // A combination of OFilterFlags. |
| unsigned flags; |
| |
| int format; |
| int width; |
| int height; |
| |
| enum VideoSyncMethod vsync_method; |
| |
| int sample_rate; |
| AVChannelLayout ch_layout; |
| } OutputFilterOptions; |
| |
| typedef struct InputFilter { |
| struct FilterGraph *graph; |
| uint8_t *name; |
| } InputFilter; |
| |
| typedef struct OutputFilter { |
| const AVClass *class; |
| |
| struct FilterGraph *graph; |
| uint8_t *name; |
| |
| /* for filters that are not yet bound to an output stream, |
| * this stores the output linklabel, if any */ |
| int bound; |
| uint8_t *linklabel; |
| |
| char *apad; |
| |
| enum AVMediaType type; |
| |
| atomic_uint_least64_t nb_frames_dup; |
| atomic_uint_least64_t nb_frames_drop; |
| } OutputFilter; |
| |
| typedef struct FilterGraph { |
| const AVClass *class; |
| int index; |
| |
| InputFilter **inputs; |
| int nb_inputs; |
| OutputFilter **outputs; |
| int nb_outputs; |
| } FilterGraph; |
| |
| enum DecoderFlags { |
| DECODER_FLAG_FIX_SUB_DURATION = (1 << 0), |
| // input timestamps are unreliable (guessed by demuxer) |
| DECODER_FLAG_TS_UNRELIABLE = (1 << 1), |
| // decoder should override timestamps by fixed framerate |
| // from DecoderOpts.framerate |
| DECODER_FLAG_FRAMERATE_FORCED = (1 << 2), |
| #if FFMPEG_OPT_TOP |
| DECODER_FLAG_TOP_FIELD_FIRST = (1 << 3), |
| #endif |
| DECODER_FLAG_SEND_END_TS = (1 << 4), |
| // force bitexact decoding |
| DECODER_FLAG_BITEXACT = (1 << 5), |
| }; |
| |
| typedef struct DecoderOpts { |
| int flags; |
| |
| char *name; |
| void *log_parent; |
| |
| const AVCodec *codec; |
| const AVCodecParameters *par; |
| |
| /* hwaccel options */ |
| enum HWAccelID hwaccel_id; |
| enum AVHWDeviceType hwaccel_device_type; |
| char *hwaccel_device; |
| enum AVPixelFormat hwaccel_output_format; |
| |
| AVRational time_base; |
| |
| // Either forced (when DECODER_FLAG_FRAMERATE_FORCED is set) or |
| // estimated (otherwise) video framerate. |
| AVRational framerate; |
| } DecoderOpts; |
| |
| typedef struct Decoder { |
| const AVClass *class; |
| |
| enum AVMediaType type; |
| |
| const uint8_t *subtitle_header; |
| int subtitle_header_size; |
| |
| // number of frames/samples retrieved from the decoder |
| uint64_t frames_decoded; |
| uint64_t samples_decoded; |
| uint64_t decode_errors; |
| } Decoder; |
| |
| typedef struct InputStream { |
| const AVClass *class; |
| |
| /* parent source */ |
| struct InputFile *file; |
| |
| int index; |
| |
| AVStream *st; |
| int user_set_discard; |
| |
| /** |
| * 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; |
| const AVCodec *dec; |
| |
| /* framerate forced with -r */ |
| AVRational framerate; |
| #if FFMPEG_OPT_TOP |
| int top_field_first; |
| #endif |
| |
| int fix_sub_duration; |
| |
| /* 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; |
| } InputStream; |
| |
| typedef struct InputFile { |
| const AVClass *class; |
| |
| int index; |
| |
| AVFormatContext *ctx; |
| 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; |
| /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */ |
| int64_t start_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; |
| } 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, |
| ENC_STATS_KEYFRAME, |
| }; |
| |
| typedef struct EncStatsComponent { |
| enum EncStatsType type; |
| |
| uint8_t *str; |
| size_t str_len; |
| } EncStatsComponent; |
| |
| typedef struct EncStats { |
| EncStatsComponent *components; |
| int nb_components; |
| |
| AVIOContext *io; |
| |
| pthread_mutex_t lock; |
| int lock_initialized; |
| } 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; |
| |
| /* parent muxer */ |
| struct OutputFile *file; |
| |
| 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 */ |
| |
| Encoder *enc; |
| AVCodecContext *enc_ctx; |
| |
| /* video only */ |
| AVRational frame_rate; |
| AVRational max_frame_rate; |
| int force_fps; |
| #if FFMPEG_OPT_TOP |
| int top_field_first; |
| #endif |
| int bitexact; |
| int bits_per_raw_sample; |
| |
| AVRational frame_aspect_ratio; |
| |
| KeyframeForceCtx kf; |
| |
| char *logfile_prefix; |
| FILE *logfile; |
| |
| // simple filtergraph feeding this stream, if any |
| FilterGraph *fg_simple; |
| OutputFilter *filter; |
| |
| AVDictionary *encoder_opts; |
| |
| char *attachment_filename; |
| |
| /* 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 */ |
| atomic_int quality; |
| |
| 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 char *url; |
| |
| OutputStream **streams; |
| int nb_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 |
| |
| int bitexact; |
| } OutputFile; |
| |
| // optionally attached as opaque_ref to decoded AVFrames |
| typedef struct FrameData { |
| // demuxer-estimated dts in AV_TIME_BASE_Q, |
| // to be used when real dts is missing |
| int64_t dts_est; |
| |
| // 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; |
| |
| int64_t wallclock[LATENCY_PROBE_NB]; |
| |
| AVCodecParameters *par_enc; |
| } FrameData; |
| |
| extern InputFile **input_files; |
| extern int nb_input_files; |
| |
| extern OutputFile **output_files; |
| extern int nb_output_files; |
| |
| // complex filtergraphs |
| extern FilterGraph **filtergraphs; |
| extern int nb_filtergraphs; |
| |
| // standalone decoders (not tied to demuxed streams) |
| extern Decoder **decoders; |
| extern int nb_decoders; |
| |
| extern char *vstats_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 atomic_uint nb_output_dumped; |
| |
| extern int ignore_unknown_streams; |
| extern int copy_unknown_streams; |
| |
| extern int recast_media; |
| |
| extern FILE *vstats_file; |
| |
| 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); |
| 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 filtergraph_is_simple(const FilterGraph *fg); |
| int init_simple_filtergraph(InputStream *ist, OutputStream *ost, |
| char *graph_desc, |
| Scheduler *sch, unsigned sch_idx_enc, |
| const OutputFilterOptions *opts); |
| int fg_finalise_bindings(void); |
| |
| /** |
| * Get our axiliary frame data attached to the frame, allocating it |
| * if needed. |
| */ |
| FrameData *frame_data(AVFrame *frame); |
| |
| const FrameData *frame_data_c(AVFrame *frame); |
| |
| FrameData *packet_data (AVPacket *pkt); |
| const FrameData *packet_data_c(AVPacket *pkt); |
| |
| int ofilter_bind_ost(OutputFilter *ofilter, OutputStream *ost, |
| unsigned sched_idx_enc, |
| const OutputFilterOptions *opts); |
| |
| /** |
| * 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, Scheduler *sch); |
| |
| void fg_free(FilterGraph **pfg); |
| |
| void fg_send_command(FilterGraph *fg, double time, const char *target, |
| const char *command, const char *arg, int all_filters); |
| |
| int ffmpeg_parse_options(int argc, char **argv, Scheduler *sch); |
| |
| 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); |
| |
| /** |
| * Create a standalone decoder. |
| */ |
| int dec_create(const OptionsContext *o, const char *arg, Scheduler *sch); |
| |
| /** |
| * @param dec_opts Dictionary filled with decoder options. Its ownership |
| * is transferred to the decoder. |
| * @param param_out If non-NULL, media properties after opening the decoder |
| * are written here. |
| * |
| * @retval ">=0" non-negative scheduler index on success |
| * @retval "<0" an error code on failure |
| */ |
| int dec_init(Decoder **pdec, Scheduler *sch, |
| AVDictionary **dec_opts, const DecoderOpts *o, |
| AVFrame *param_out); |
| void dec_free(Decoder **pdec); |
| |
| /* |
| * Called by filters to connect decoder's output to given filtergraph input. |
| * |
| * @param opts filtergraph input options, to be filled by this function |
| */ |
| int dec_filter_add(Decoder *dec, InputFilter *ifilter, InputFilterOptions *opts); |
| |
| int enc_alloc(Encoder **penc, const AVCodec *codec, |
| Scheduler *sch, unsigned sch_idx); |
| void enc_free(Encoder **penc); |
| |
| int enc_open(void *opaque, const AVFrame *frame); |
| |
| int enc_loopback(Encoder *enc); |
| |
| /* |
| * 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, Scheduler *sch); |
| void of_free(OutputFile **pof); |
| |
| void of_enc_stats_close(void); |
| |
| int64_t of_filesize(OutputFile *of); |
| |
| int ifile_open(const OptionsContext *o, const char *filename, Scheduler *sch); |
| void ifile_close(InputFile **f); |
| |
| int ist_output_add(InputStream *ist, OutputStream *ost); |
| int ist_filter_add(InputStream *ist, InputFilter *ifilter, int is_simple, |
| InputFilterOptions *opts); |
| |
| /** |
| * 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 update_benchmark(const char *fmt, ...); |
| |
| #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(optname, type, idx, st)\ |
| {\ |
| char namestr[128] = "";\ |
| const SpecifierOpt *so = &o->optname.opt[idx];\ |
| const char *spec = so->specifier && so->specifier[0] ? so->specifier : "";\ |
| snprintf(namestr, sizeof(namestr), "-%s", o->optname.opt_canon->name);\ |
| if (o->optname.opt_canon->flags & OPT_HAS_ALT) {\ |
| const char * const *names_alt = o->optname.opt_canon->u1.names_alt;\ |
| for (int _i = 0; names_alt[_i]; _i++)\ |
| av_strlcatf(namestr, sizeof(namestr), "/-%s", names_alt[_i]);\ |
| }\ |
| 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, o->optname.opt_canon->name, spec[0] ? ":" : "", spec, so->u.type);\ |
| } |
| |
| #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\ |
| {\ |
| int _ret, _matches = 0, _match_idx;\ |
| for (int _i = 0; _i < o->name.nb_opt; _i++) {\ |
| char *spec = o->name.opt[_i].specifier;\ |
| if ((_ret = check_stream_specifier(fmtctx, st, spec)) > 0) {\ |
| outvar = o->name.opt[_i].u.type;\ |
| _match_idx = _i;\ |
| _matches++;\ |
| } else if (_ret < 0)\ |
| return _ret;\ |
| }\ |
| if (_matches > 1 && o->name.opt_canon)\ |
| WARN_MULTIPLE_OPT_USAGE(name, type, _match_idx, st);\ |
| } |
| |
| const char *opt_match_per_type_str(const SpecifierOptList *sol, |
| char mediatype); |
| |
| int muxer_thread(void *arg); |
| int encoder_thread(void *arg); |
| |
| #endif /* FFTOOLS_FFMPEG_H */ |