avtools/avconv.h

   1 /*
   2  * This file is part of Libav.
   3  *
   4  * Libav is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * Libav is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with Libav; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #ifndef AVCONV_H
  20 #define AVCONV_H
  21
  22 #include "config.h"
  23
  24 #include <stdint.h>
  25 #include <stdio.h>
  26
  27 #if HAVE_PTHREADS
  28 #include <pthread.h>
  29 #endif
  30
  31 #include "cmdutils.h"
  32
  33 #include "libavformat/avformat.h"
  34 #include "libavformat/avio.h"
  35
  36 #include "libavcodec/avcodec.h"
  37
  38 #include "libavfilter/avfilter.h"
  39
  40 #include "libavutil/avutil.h"
  41 #include "libavutil/dict.h"
  42 #include "libavutil/fifo.h"
  43 #include "libavutil/hwcontext.h"
  44 #include "libavutil/pixfmt.h"
  45 #include "libavutil/rational.h"
  46
  47 #define VSYNC_AUTO       -1
  48 #define VSYNC_PASSTHROUGH 0
  49 #define VSYNC_CFR         1
  50 #define VSYNC_VFR         2
  51
  52 enum HWAccelID {
  53     HWACCEL_NONE = 0,
  54     HWACCEL_AUTO,
  55     HWACCEL_GENERIC,
  56     HWACCEL_VDA,
  57     HWACCEL_QSV,
  58 };
  59
  60 typedef struct HWAccel {
  61     const char *name;
  62     int (*init)(AVCodecContext *s);
  63     enum HWAccelID id;
  64     enum AVPixelFormat pix_fmt;
  65 } HWAccel;
  66
  67 typedef struct HWDevice {
  68     char *name;
  69     enum AVHWDeviceType type;
  70     AVBufferRef *device_ref;
  71 } HWDevice;
  72
  73 /* select an input stream for an output stream */
  74 typedef struct StreamMap {
  75     int disabled;           /* 1 is this mapping is disabled by a negative map */
  76     int file_index;
  77     int stream_index;
  78     int sync_file_index;
  79     int sync_stream_index;
  80     char *linklabel;       /* name of an output link, for mapping lavfi outputs */
  81 } StreamMap;
  82
  83 /* select an input file for an output file */
  84 typedef struct MetadataMap {
  85     int  file;      // file index
  86     char type;      // type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
  87     int  index;     // stream/chapter/program number
  88 } MetadataMap;
  89
  90 typedef struct OptionsContext {
  91     OptionGroup *g;
  92
  93     /* input/output options */
  94     int64_t start_time;
  95     const char *format;
  96
  97     SpecifierOpt *codec_names;
  98     int        nb_codec_names;
  99     SpecifierOpt *audio_channels;
 100     int        nb_audio_channels;
 101     SpecifierOpt *audio_sample_rate;
 102     int        nb_audio_sample_rate;
 103     SpecifierOpt *frame_rates;
 104     int        nb_frame_rates;
 105     SpecifierOpt *frame_sizes;
 106     int        nb_frame_sizes;
 107     SpecifierOpt *frame_pix_fmts;
 108     int        nb_frame_pix_fmts;
 109
 110     /* input options */
 111     int64_t input_ts_offset;
 112     int loop;
 113     int rate_emu;
 114     int accurate_seek;
 115
 116     SpecifierOpt *ts_scale;
 117     int        nb_ts_scale;
 118     SpecifierOpt *dump_attachment;
 119     int        nb_dump_attachment;
 120     SpecifierOpt *hwaccels;
 121     int        nb_hwaccels;
 122     SpecifierOpt *hwaccel_devices;
 123     int        nb_hwaccel_devices;
 124     SpecifierOpt *hwaccel_output_formats;
 125     int        nb_hwaccel_output_formats;
 126     SpecifierOpt *autorotate;
 127     int        nb_autorotate;
 128
 129     /* output options */
 130     StreamMap *stream_maps;
 131     int     nb_stream_maps;
 132     /* first item specifies output metadata, second is input */
 133     MetadataMap (*meta_data_maps)[2];
 134     int nb_meta_data_maps;
 135     int metadata_global_manual;
 136     int metadata_streams_manual;
 137     int metadata_chapters_manual;
 138     const char **attachments;
 139     int       nb_attachments;
 140
 141     int chapters_input_file;
 142
 143     int64_t recording_time;
 144     uint64_t limit_filesize;
 145     float mux_preload;
 146     float mux_max_delay;
 147     int shortest;
 148
 149     int video_disable;
 150     int audio_disable;
 151     int subtitle_disable;
 152     int data_disable;
 153
 154     /* indexed by output file stream index */
 155     int   *streamid_map;
 156     int nb_streamid_map;
 157
 158     SpecifierOpt *metadata;
 159     int        nb_metadata;
 160     SpecifierOpt *max_frames;
 161     int        nb_max_frames;
 162     SpecifierOpt *bitstream_filters;
 163     int        nb_bitstream_filters;
 164     SpecifierOpt *codec_tags;
 165     int        nb_codec_tags;
 166     SpecifierOpt *sample_fmts;
 167     int        nb_sample_fmts;
 168     SpecifierOpt *qscale;
 169     int        nb_qscale;
 170     SpecifierOpt *bitrates;
 171     int        nb_bitrates;
 172     SpecifierOpt *forced_key_frames;
 173     int        nb_forced_key_frames;
 174     SpecifierOpt *force_fps;
 175     int        nb_force_fps;
 176     SpecifierOpt *frame_aspect_ratios;
 177     int        nb_frame_aspect_ratios;
 178     SpecifierOpt *rc_overrides;
 179     int        nb_rc_overrides;
 180     SpecifierOpt *intra_matrices;
 181     int        nb_intra_matrices;
 182     SpecifierOpt *inter_matrices;
 183     int        nb_inter_matrices;
 184     SpecifierOpt *top_field_first;
 185     int        nb_top_field_first;
 186     SpecifierOpt *metadata_map;
 187     int        nb_metadata_map;
 188     SpecifierOpt *presets;
 189     int        nb_presets;
 190     SpecifierOpt *copy_initial_nonkeyframes;
 191     int        nb_copy_initial_nonkeyframes;
 192     SpecifierOpt *filters;
 193     int        nb_filters;
 194     SpecifierOpt *filter_scripts;
 195     int        nb_filter_scripts;
 196     SpecifierOpt *pass;
 197     int        nb_pass;
 198     SpecifierOpt *passlogfiles;
 199     int        nb_passlogfiles;
 200     SpecifierOpt *max_muxing_queue_size;
 201     int        nb_max_muxing_queue_size;
 202 } OptionsContext;
 203
 204 typedef struct InputFilter {
 205     AVFilterContext    *filter;
 206     struct InputStream *ist;
 207     struct FilterGraph *graph;
 208     uint8_t            *name;
 209
 210     AVFifoBuffer *frame_queue;
 211
 212     // parameters configured for this input
 213     int format;
 214
 215     int width, height;
 216     AVRational sample_aspect_ratio;
 217
 218     int sample_rate;
 219     uint64_t channel_layout;
 220
 221     AVBufferRef *hw_frames_ctx;
 222
 223     int eof;
 224 } InputFilter;
 225
 226 typedef struct OutputFilter {
 227     AVFilterContext     *filter;
 228     struct OutputStream *ost;
 229     struct FilterGraph  *graph;
 230     uint8_t             *name;
 231
 232     /* temporary storage until stream maps are processed */
 233     AVFilterInOut       *out_tmp;
 234     enum AVMediaType     type;
 235
 236     /* desired output stream properties */
 237     int width, height;
 238     AVRational frame_rate;
 239     int format;
 240     int sample_rate;
 241     uint64_t channel_layout;
 242
 243     // those are only set if no format is specified and the encoder gives us multiple options
 244     int *formats;
 245     uint64_t *channel_layouts;
 246     int *sample_rates;
 247 } OutputFilter;
 248
 249 typedef struct FilterGraph {
 250     int            index;
 251     const char    *graph_desc;
 252
 253     AVFilterGraph *graph;
 254
 255     InputFilter   **inputs;
 256     int          nb_inputs;
 257     OutputFilter **outputs;
 258     int         nb_outputs;
 259 } FilterGraph;
 260
 261 typedef struct InputStream {
 262     int file_index;
 263     AVStream *st;
 264     int discard;             /* true if stream data should be discarded */
 265     int decoding_needed;     /* true if the packets must be decoded in 'raw_fifo' */
 266     AVCodecContext *dec_ctx;
 267     AVCodec *dec;
 268     AVFrame *decoded_frame;
 269     AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
 270
 271     int64_t       start;     /* time when read started */
 272     /* predicted dts of the next packet read for this stream or (when there are
 273      * several frames in a packet) of the next frame in current packet */
 274     int64_t       next_dts;
 275     /* dts of the last packet read for this stream */
 276     int64_t       last_dts;
 277     int64_t min_pts; /* pts with the smallest value in a current stream */
 278     int64_t max_pts; /* pts with the higher value in a current stream */
 279
 280     // when forcing constant input framerate through -r,
 281     // this contains the pts that will be given to the next decoded frame
 282     int64_t cfr_next_pts;
 283
 284     int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
 285     PtsCorrectionContext pts_ctx;
 286     double ts_scale;
 287     AVDictionary *decoder_opts;
 288     AVRational framerate;               /* framerate forced with -r */
 289
 290     int autorotate;
 291
 292     /* decoded data from this stream goes into all those filters
 293      * currently video and audio only */
 294     InputFilter **filters;
 295     int        nb_filters;
 296
 297     /* hwaccel options */
 298     enum HWAccelID hwaccel_id;
 299     enum AVHWDeviceType hwaccel_device_type;
 300     char  *hwaccel_device;
 301     enum AVPixelFormat hwaccel_output_format;
 302
 303     /* hwaccel context */
 304     void  *hwaccel_ctx;
 305     void (*hwaccel_uninit)(AVCodecContext *s);
 306     int  (*hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags);
 307     int  (*hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame);
 308     enum AVPixelFormat hwaccel_pix_fmt;
 309     enum AVPixelFormat hwaccel_retrieved_pix_fmt;
 310     AVBufferRef *hw_frames_ctx;
 311
 312     /* stats */
 313     // combined size of all the packets read
 314     uint64_t data_size;
 315     /* number of packets successfully read for this stream */
 316     uint64_t nb_packets;
 317     // number of frames/samples retrieved from the decoder
 318     uint64_t frames_decoded;
 319     uint64_t samples_decoded;
 320 } InputStream;
 321
 322 typedef struct InputFile {
 323     AVFormatContext *ctx;
 324     int eof_reached;      /* true if eof reached */
 325     int eagain;           /* true if last read attempt returned EAGAIN */
 326     int ist_index;        /* index of first stream in ist_table */
 327     int loop;             /* set number of times input stream should be looped */
 328     int64_t duration;     /* actual duration of the longest stream in a file
 329                              at the moment when looping happens */
 330     AVRational time_base; /* time base of the duration */
 331     int64_t ts_offset;
 332     int64_t start_time;   /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
 333     int64_t recording_time;
 334     int nb_streams;       /* number of stream that avconv is aware of; may be different
 335                              from ctx.nb_streams if new streams appear during av_read_frame() */
 336     int rate_emu;
 337     int accurate_seek;
 338
 339 #if HAVE_PTHREADS
 340     pthread_t thread;           /* thread reading from this file */
 341     int finished;               /* the thread has exited */
 342     int joined;                 /* the thread has been joined */
 343     pthread_mutex_t fifo_lock;  /* lock for access to fifo */
 344     pthread_cond_t  fifo_cond;  /* the main thread will signal on this cond after reading from fifo */
 345     AVFifoBuffer *fifo;         /* demuxed packets are stored here; freed by the main thread */
 346 #endif
 347 } InputFile;
 348
 349 typedef struct OutputStream {
 350     int file_index;          /* file index */
 351     int index;               /* stream index in the output file */
 352     int source_index;        /* InputStream index */
 353     AVStream *st;            /* stream in the output file */
 354     int encoding_needed;     /* true if encoding needed for this stream */
 355     int frame_number;
 356     /* input pts and corresponding output pts
 357        for A/V sync */
 358     // double sync_ipts;        /* dts from the AVPacket of the demuxer in second units */
 359     struct InputStream *sync_ist; /* input stream to sync against */
 360     int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
 361     /* pts of the first frame encoded for this stream, used for limiting
 362      * recording time */
 363     int64_t first_pts;
 364     /* dts of the last packet sent to the muxer */
 365     int64_t last_mux_dts;
 366     // the timebase of the packets sent to the muxer
 367     AVRational mux_timebase;
 368
 369     int                    nb_bitstream_filters;
 370     AVBSFContext            **bsf_ctx;
 371
 372     AVCodecContext *enc_ctx;
 373     AVCodec *enc;
 374     int64_t max_frames;
 375     AVFrame *filtered_frame;
 376
 377     void  *hwaccel_ctx;
 378
 379     /* video only */
 380     AVRational frame_rate;
 381     int force_fps;
 382     int top_field_first;
 383
 384     float frame_aspect_ratio;
 385
 386     /* forced key frames */
 387     int64_t *forced_kf_pts;
 388     int forced_kf_count;
 389     int forced_kf_index;
 390     char *forced_keyframes;
 391
 392     // the bitrate to send to the muxer for streamcopy
 393     int bitrate_override;
 394
 395     char *logfile_prefix;
 396     FILE *logfile;
 397
 398     OutputFilter *filter;
 399     char *avfilter;
 400
 401     int64_t sws_flags;
 402     AVDictionary *encoder_opts;
 403     AVDictionary *resample_opts;
 404     int finished;        /* no more packets should be written for this stream */
 405     int stream_copy;
 406
 407     // init_output_stream() has been called for this stream
 408     // The encoder and the bistream filters have been initialized and the stream
 409     // parameters are set in the AVStream.
 410     int initialized;
 411
 412     const char *attachment_filename;
 413     int copy_initial_nonkeyframes;
 414
 415     enum AVPixelFormat pix_fmts[2];
 416
 417     AVCodecParserContext *parser;
 418     AVCodecContext       *parser_avctx;
 419
 420     /* stats */
 421     // combined size of all the packets written
 422     uint64_t data_size;
 423     // number of packets send to the muxer
 424     uint64_t packets_written;
 425     // number of frames/samples sent to the encoder
 426     uint64_t frames_encoded;
 427     uint64_t samples_encoded;
 428
 429     /* packet quality factor */
 430     int quality;
 431
 432     int max_muxing_queue_size;
 433
 434     /* the packets are buffered here until the muxer is ready to be initialized */
 435     AVFifoBuffer *muxing_queue;
 436 } OutputStream;
 437
 438 typedef struct OutputFile {
 439     AVFormatContext *ctx;
 440     AVDictionary *opts;
 441     int ost_index;       /* index of the first stream in output_streams */
 442     int64_t recording_time; /* desired length of the resulting file in microseconds */
 443     int64_t start_time;     /* start time in microseconds */
 444     uint64_t limit_filesize;
 445
 446     int shortest;
 447
 448     int header_written;
 449 } OutputFile;
 450
 451 extern InputStream **input_streams;
 452 extern int        nb_input_streams;
 453 extern InputFile   **input_files;
 454 extern int        nb_input_files;
 455
 456 extern OutputStream **output_streams;
 457 extern int         nb_output_streams;
 458 extern OutputFile   **output_files;
 459 extern int         nb_output_files;
 460
 461 extern FilterGraph **filtergraphs;
 462 extern int        nb_filtergraphs;
 463
 464 extern char *vstats_filename;
 465
 466 extern float audio_drift_threshold;
 467 extern float dts_delta_threshold;
 468
 469 extern int audio_volume;
 470 extern int audio_sync_method;
 471 extern int video_sync_method;
 472 extern int do_benchmark;
 473 extern int do_deinterlace;
 474 extern int do_hex_dump;
 475 extern int do_pkt_dump;
 476 extern int copy_ts;
 477 extern int copy_tb;
 478 extern int exit_on_error;
 479 extern int print_stats;
 480 extern int qp_hist;
 481
 482 extern const AVIOInterruptCB int_cb;
 483
 484 extern const OptionDef options[];
 485
 486 extern const HWAccel hwaccels[];
 487 extern int hwaccel_lax_profile_check;
 488 extern AVBufferRef *hw_device_ctx;
 489 extern HWDevice *filter_hw_device;
 490
 491 void reset_options(OptionsContext *o);
 492 void show_usage(void);
 493
 494 void opt_output_file(void *optctx, const char *filename);
 495
 496 void assert_avoptions(AVDictionary *m);
 497
 498 int guess_input_channel_layout(InputStream *ist);
 499
 500 int configure_filtergraph(FilterGraph *fg);
 501 int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out);
 502 int ist_in_filtergraph(FilterGraph *fg, InputStream *ist);
 503 int filtergraph_is_simple(FilterGraph *fg);
 504 int init_simple_filtergraph(InputStream *ist, OutputStream *ost);
 505 int init_complex_filtergraph(FilterGraph *fg);
 506
 507 int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame);
 508
 509 int avconv_parse_options(int argc, char **argv);
 510
 511 int dxva2_init(AVCodecContext *s);
 512 int vda_init(AVCodecContext *s);
 513 int qsv_init(AVCodecContext *s);
 514 int qsv_transcode_init(OutputStream *ost);
 515
 516 HWDevice *hw_device_get_by_name(const char *name);
 517 int hw_device_init_from_string(const char *arg, HWDevice **dev);
 518 void hw_device_free_all(void);
 519
 520 int hw_device_setup_for_decode(InputStream *ist);
 521 int hw_device_setup_for_encode(OutputStream *ost);
 522
 523 int hwaccel_decode_init(AVCodecContext *avctx);
 524
 525 #endif /* AVCONV_H */