avconv: buffer the packets written while the muxer is not initialized
[libav.git] / avconv.h
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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"
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39
40#include "libavutil/avutil.h"
41#include "libavutil/dict.h"
42#include "libavutil/fifo.h"
43#include "libavutil/pixfmt.h"
44#include "libavutil/rational.h"
45
46#define VSYNC_AUTO -1
47#define VSYNC_PASSTHROUGH 0
48#define VSYNC_CFR 1
49#define VSYNC_VFR 2
50
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51enum HWAccelID {
52 HWACCEL_NONE = 0,
53 HWACCEL_AUTO,
7671dd7c 54 HWACCEL_VDPAU,
35177ba7 55 HWACCEL_DXVA2,
1839fafa 56 HWACCEL_VDA,
fb472e1a 57 HWACCEL_QSV,
5d273d3e 58 HWACCEL_VAAPI,
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59};
60
61typedef struct HWAccel {
62 const char *name;
63 int (*init)(AVCodecContext *s);
64 enum HWAccelID id;
65 enum AVPixelFormat pix_fmt;
66} HWAccel;
67
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68/* select an input stream for an output stream */
69typedef struct StreamMap {
c1ef30a6 70 int disabled; /* 1 is this mapping is disabled by a negative map */
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71 int file_index;
72 int stream_index;
73 int sync_file_index;
74 int sync_stream_index;
c1ef30a6 75 char *linklabel; /* name of an output link, for mapping lavfi outputs */
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76} StreamMap;
77
c1ef30a6 78/* select an input file for an output file */
f5e66827 79typedef struct MetadataMap {
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80 int file; // file index
81 char type; // type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
82 int index; // stream/chapter/program number
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83} MetadataMap;
84
85typedef struct OptionsContext {
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86 OptionGroup *g;
87
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88 /* input/output options */
89 int64_t start_time;
90 const char *format;
91
92 SpecifierOpt *codec_names;
93 int nb_codec_names;
94 SpecifierOpt *audio_channels;
95 int nb_audio_channels;
96 SpecifierOpt *audio_sample_rate;
97 int nb_audio_sample_rate;
98 SpecifierOpt *frame_rates;
99 int nb_frame_rates;
100 SpecifierOpt *frame_sizes;
101 int nb_frame_sizes;
102 SpecifierOpt *frame_pix_fmts;
103 int nb_frame_pix_fmts;
104
105 /* input options */
106 int64_t input_ts_offset;
16b0c929 107 int loop;
f5e66827 108 int rate_emu;
811bd078 109 int accurate_seek;
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110
111 SpecifierOpt *ts_scale;
112 int nb_ts_scale;
113 SpecifierOpt *dump_attachment;
114 int nb_dump_attachment;
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115 SpecifierOpt *hwaccels;
116 int nb_hwaccels;
117 SpecifierOpt *hwaccel_devices;
118 int nb_hwaccel_devices;
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119 SpecifierOpt *hwaccel_output_formats;
120 int nb_hwaccel_output_formats;
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121 SpecifierOpt *autorotate;
122 int nb_autorotate;
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123
124 /* output options */
125 StreamMap *stream_maps;
126 int nb_stream_maps;
127 /* first item specifies output metadata, second is input */
128 MetadataMap (*meta_data_maps)[2];
129 int nb_meta_data_maps;
130 int metadata_global_manual;
131 int metadata_streams_manual;
132 int metadata_chapters_manual;
133 const char **attachments;
134 int nb_attachments;
135
136 int chapters_input_file;
137
138 int64_t recording_time;
139 uint64_t limit_filesize;
140 float mux_preload;
141 float mux_max_delay;
3c0df905 142 int shortest;
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143
144 int video_disable;
145 int audio_disable;
146 int subtitle_disable;
147 int data_disable;
148
149 /* indexed by output file stream index */
150 int *streamid_map;
151 int nb_streamid_map;
152
153 SpecifierOpt *metadata;
154 int nb_metadata;
155 SpecifierOpt *max_frames;
156 int nb_max_frames;
157 SpecifierOpt *bitstream_filters;
158 int nb_bitstream_filters;
159 SpecifierOpt *codec_tags;
160 int nb_codec_tags;
161 SpecifierOpt *sample_fmts;
162 int nb_sample_fmts;
163 SpecifierOpt *qscale;
164 int nb_qscale;
165 SpecifierOpt *forced_key_frames;
166 int nb_forced_key_frames;
167 SpecifierOpt *force_fps;
168 int nb_force_fps;
169 SpecifierOpt *frame_aspect_ratios;
170 int nb_frame_aspect_ratios;
171 SpecifierOpt *rc_overrides;
172 int nb_rc_overrides;
173 SpecifierOpt *intra_matrices;
174 int nb_intra_matrices;
175 SpecifierOpt *inter_matrices;
176 int nb_inter_matrices;
177 SpecifierOpt *top_field_first;
178 int nb_top_field_first;
179 SpecifierOpt *metadata_map;
180 int nb_metadata_map;
181 SpecifierOpt *presets;
182 int nb_presets;
183 SpecifierOpt *copy_initial_nonkeyframes;
184 int nb_copy_initial_nonkeyframes;
185 SpecifierOpt *filters;
186 int nb_filters;
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187 SpecifierOpt *filter_scripts;
188 int nb_filter_scripts;
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189 SpecifierOpt *pass;
190 int nb_pass;
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191 SpecifierOpt *passlogfiles;
192 int nb_passlogfiles;
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193 SpecifierOpt *max_muxing_queue_size;
194 int nb_max_muxing_queue_size;
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195} OptionsContext;
196
197typedef struct InputFilter {
198 AVFilterContext *filter;
199 struct InputStream *ist;
200 struct FilterGraph *graph;
201 uint8_t *name;
202} InputFilter;
203
204typedef struct OutputFilter {
205 AVFilterContext *filter;
206 struct OutputStream *ost;
207 struct FilterGraph *graph;
208 uint8_t *name;
209
210 /* temporary storage until stream maps are processed */
211 AVFilterInOut *out_tmp;
6d592fbd 212 enum AVMediaType type;
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213} OutputFilter;
214
215typedef struct FilterGraph {
216 int index;
217 const char *graph_desc;
218
219 AVFilterGraph *graph;
220
221 InputFilter **inputs;
222 int nb_inputs;
223 OutputFilter **outputs;
224 int nb_outputs;
225} FilterGraph;
226
227typedef struct InputStream {
228 int file_index;
229 AVStream *st;
230 int discard; /* true if stream data should be discarded */
231 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
41776ba9 232 AVCodecContext *dec_ctx;
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233 AVCodec *dec;
234 AVFrame *decoded_frame;
9b2dc295 235 AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
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236
237 int64_t start; /* time when read started */
238 /* predicted dts of the next packet read for this stream or (when there are
239 * several frames in a packet) of the next frame in current packet */
240 int64_t next_dts;
241 /* dts of the last packet read for this stream */
242 int64_t last_dts;
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243 int64_t min_pts; /* pts with the smallest value in a current stream */
244 int64_t max_pts; /* pts with the higher value in a current stream */
245 int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
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246 PtsCorrectionContext pts_ctx;
247 double ts_scale;
f3a6ad22 248 AVDictionary *decoder_opts;
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249 AVRational framerate; /* framerate forced with -r */
250
16302246 251 int autorotate;
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252 int resample_height;
253 int resample_width;
254 int resample_pix_fmt;
255
256 int resample_sample_fmt;
257 int resample_sample_rate;
258 int resample_channels;
259 uint64_t resample_channel_layout;
260
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261 /* decoded data from this stream goes into all those filters
262 * currently video and audio only */
263 InputFilter **filters;
264 int nb_filters;
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265
266 /* hwaccel options */
267 enum HWAccelID hwaccel_id;
268 char *hwaccel_device;
5d273d3e 269 enum AVPixelFormat hwaccel_output_format;
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270
271 /* hwaccel context */
272 enum HWAccelID active_hwaccel_id;
273 void *hwaccel_ctx;
274 void (*hwaccel_uninit)(AVCodecContext *s);
275 int (*hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags);
276 int (*hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame);
277 enum AVPixelFormat hwaccel_pix_fmt;
278 enum AVPixelFormat hwaccel_retrieved_pix_fmt;
5d273d3e 279 AVBufferRef *hw_frames_ctx;
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280
281 /* stats */
282 // combined size of all the packets read
283 uint64_t data_size;
284 /* number of packets successfully read for this stream */
285 uint64_t nb_packets;
286 // number of frames/samples retrieved from the decoder
287 uint64_t frames_decoded;
288 uint64_t samples_decoded;
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289} InputStream;
290
291typedef struct InputFile {
292 AVFormatContext *ctx;
293 int eof_reached; /* true if eof reached */
0b26ef42 294 int eagain; /* true if last read attempt returned EAGAIN */
f5e66827 295 int ist_index; /* index of first stream in ist_table */
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296 int loop; /* set number of times input stream should be looped */
297 int64_t duration; /* actual duration of the longest stream in a file
298 at the moment when looping happens */
299 AVRational time_base; /* time base of the duration */
f5e66827 300 int64_t ts_offset;
811bd078 301 int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
488a0fa6 302 int64_t recording_time;
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303 int nb_streams; /* number of stream that avconv is aware of; may be different
304 from ctx.nb_streams if new streams appear during av_read_frame() */
305 int rate_emu;
811bd078 306 int accurate_seek;
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307
308#if HAVE_PTHREADS
309 pthread_t thread; /* thread reading from this file */
310 int finished; /* the thread has exited */
311 int joined; /* the thread has been joined */
312 pthread_mutex_t fifo_lock; /* lock for access to fifo */
313 pthread_cond_t fifo_cond; /* the main thread will signal on this cond after reading from fifo */
314 AVFifoBuffer *fifo; /* demuxed packets are stored here; freed by the main thread */
315#endif
316} InputFile;
317
318typedef struct OutputStream {
319 int file_index; /* file index */
320 int index; /* stream index in the output file */
321 int source_index; /* InputStream index */
322 AVStream *st; /* stream in the output file */
323 int encoding_needed; /* true if encoding needed for this stream */
324 int frame_number;
325 /* input pts and corresponding output pts
326 for A/V sync */
327 // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
328 struct InputStream *sync_ist; /* input stream to sync against */
329 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
330 /* pts of the first frame encoded for this stream, used for limiting
331 * recording time */
332 int64_t first_pts;
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333 /* dts of the last packet sent to the muxer */
334 int64_t last_mux_dts;
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335
336 int nb_bitstream_filters;
337 const AVBitStreamFilter **bitstream_filters;
338 AVBSFContext **bsf_ctx;
339
38313626 340 AVCodecContext *enc_ctx;
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341 AVCodec *enc;
342 int64_t max_frames;
343 AVFrame *filtered_frame;
344
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345 void *hwaccel_ctx;
346
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347 /* video only */
348 AVRational frame_rate;
349 int force_fps;
350 int top_field_first;
351
352 float frame_aspect_ratio;
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353
354 /* forced key frames */
355 int64_t *forced_kf_pts;
356 int forced_kf_count;
357 int forced_kf_index;
358 char *forced_keyframes;
359
bbcedade 360 char *logfile_prefix;
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361 FILE *logfile;
362
363 OutputFilter *filter;
364 char *avfilter;
365
366 int64_t sws_flags;
9580818c 367 AVDictionary *encoder_opts;
5c7db097 368 AVDictionary *resample_opts;
57d24225 369 int finished; /* no more packets should be written for this stream */
f5e66827 370 int stream_copy;
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371
372 // init_output_stream() has been called for this stream
373 // The encoder and the bistream filters have been initialized and the stream
374 // parameters are set in the AVStream.
375 int initialized;
376
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377 const char *attachment_filename;
378 int copy_initial_nonkeyframes;
379
716d413c 380 enum AVPixelFormat pix_fmts[2];
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381
382 AVCodecParserContext *parser;
35c85806 383 AVCodecContext *parser_avctx;
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384
385 /* stats */
386 // combined size of all the packets written
387 uint64_t data_size;
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388 // number of packets send to the muxer
389 uint64_t packets_written;
390 // number of frames/samples sent to the encoder
391 uint64_t frames_encoded;
392 uint64_t samples_encoded;
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393
394 /* packet quality factor */
395 int quality;
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396
397 int max_muxing_queue_size;
398
399 /* the packets are buffered here until the muxer is ready to be initialized */
400 AVFifoBuffer *muxing_queue;
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401} OutputStream;
402
403typedef struct OutputFile {
404 AVFormatContext *ctx;
405 AVDictionary *opts;
406 int ost_index; /* index of the first stream in output_streams */
407 int64_t recording_time; /* desired length of the resulting file in microseconds */
408 int64_t start_time; /* start time in microseconds */
409 uint64_t limit_filesize;
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410
411 int shortest;
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412
413 int header_written;
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414} OutputFile;
415
416extern InputStream **input_streams;
417extern int nb_input_streams;
418extern InputFile **input_files;
419extern int nb_input_files;
420
421extern OutputStream **output_streams;
422extern int nb_output_streams;
423extern OutputFile **output_files;
424extern int nb_output_files;
425
426extern FilterGraph **filtergraphs;
427extern int nb_filtergraphs;
428
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429extern char *vstats_filename;
430
431extern float audio_drift_threshold;
432extern float dts_delta_threshold;
433
434extern int audio_volume;
435extern int audio_sync_method;
436extern int video_sync_method;
437extern int do_benchmark;
438extern int do_deinterlace;
439extern int do_hex_dump;
440extern int do_pkt_dump;
441extern int copy_ts;
442extern int copy_tb;
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443extern int exit_on_error;
444extern int print_stats;
445extern int qp_hist;
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446
447extern const AVIOInterruptCB int_cb;
448
449extern const OptionDef options[];
450
07fd0a22 451extern const HWAccel hwaccels[];
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452extern int hwaccel_lax_profile_check;
453extern AVBufferRef *hw_device_ctx;
07fd0a22 454
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455void reset_options(OptionsContext *o);
456void show_usage(void);
457
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458void opt_output_file(void *optctx, const char *filename);
459
460void assert_avoptions(AVDictionary *m);
461
462int guess_input_channel_layout(InputStream *ist);
463
464int configure_filtergraph(FilterGraph *fg);
465int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out);
fe2147e9 466int ist_in_filtergraph(FilterGraph *fg, InputStream *ist);
49670e42 467int filtergraph_is_simple(FilterGraph *fg);
73c6ec6d 468int init_simple_filtergraph(InputStream *ist, OutputStream *ost);
6d592fbd 469int init_complex_filtergraph(FilterGraph *fg);
f5e66827 470
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471int avconv_parse_options(int argc, char **argv);
472
7671dd7c 473int vdpau_init(AVCodecContext *s);
35177ba7 474int dxva2_init(AVCodecContext *s);
1839fafa 475int vda_init(AVCodecContext *s);
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476int qsv_init(AVCodecContext *s);
477int qsv_transcode_init(OutputStream *ost);
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478int vaapi_decode_init(AVCodecContext *avctx);
479int vaapi_device_init(const char *device);
7671dd7c 480
f5e66827 481#endif /* AVCONV_H */