avconv: decouple configuring filtergraphs and setting output parameters
[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;
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202
203 // parameters configured for this input
204 int format;
205
206 int width, height;
207 AVRational sample_aspect_ratio;
208
209 int sample_rate;
210 uint64_t channel_layout;
211
212 AVBufferRef *hw_frames_ctx;
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213} InputFilter;
214
215typedef struct OutputFilter {
216 AVFilterContext *filter;
217 struct OutputStream *ost;
218 struct FilterGraph *graph;
219 uint8_t *name;
220
221 /* temporary storage until stream maps are processed */
222 AVFilterInOut *out_tmp;
6d592fbd 223 enum AVMediaType type;
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224
225 /* desired output stream properties */
226 int width, height;
227 AVRational frame_rate;
228 int format;
229 int sample_rate;
230 uint64_t channel_layout;
231
232 // those are only set if no format is specified and the encoder gives us multiple options
233 int *formats;
234 uint64_t *channel_layouts;
235 int *sample_rates;
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236} OutputFilter;
237
238typedef struct FilterGraph {
239 int index;
240 const char *graph_desc;
241
242 AVFilterGraph *graph;
243
244 InputFilter **inputs;
245 int nb_inputs;
246 OutputFilter **outputs;
247 int nb_outputs;
248} FilterGraph;
249
250typedef struct InputStream {
251 int file_index;
252 AVStream *st;
253 int discard; /* true if stream data should be discarded */
254 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
41776ba9 255 AVCodecContext *dec_ctx;
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256 AVCodec *dec;
257 AVFrame *decoded_frame;
9b2dc295 258 AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
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259
260 int64_t start; /* time when read started */
261 /* predicted dts of the next packet read for this stream or (when there are
262 * several frames in a packet) of the next frame in current packet */
263 int64_t next_dts;
264 /* dts of the last packet read for this stream */
265 int64_t last_dts;
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266 int64_t min_pts; /* pts with the smallest value in a current stream */
267 int64_t max_pts; /* pts with the higher value in a current stream */
268 int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
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269 PtsCorrectionContext pts_ctx;
270 double ts_scale;
f3a6ad22 271 AVDictionary *decoder_opts;
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272 AVRational framerate; /* framerate forced with -r */
273
16302246 274 int autorotate;
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275 int resample_height;
276 int resample_width;
277 int resample_pix_fmt;
278
279 int resample_sample_fmt;
280 int resample_sample_rate;
281 int resample_channels;
282 uint64_t resample_channel_layout;
283
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284 /* decoded data from this stream goes into all those filters
285 * currently video and audio only */
286 InputFilter **filters;
287 int nb_filters;
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288
289 /* hwaccel options */
290 enum HWAccelID hwaccel_id;
291 char *hwaccel_device;
5d273d3e 292 enum AVPixelFormat hwaccel_output_format;
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293
294 /* hwaccel context */
295 enum HWAccelID active_hwaccel_id;
296 void *hwaccel_ctx;
297 void (*hwaccel_uninit)(AVCodecContext *s);
298 int (*hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags);
299 int (*hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame);
300 enum AVPixelFormat hwaccel_pix_fmt;
301 enum AVPixelFormat hwaccel_retrieved_pix_fmt;
5d273d3e 302 AVBufferRef *hw_frames_ctx;
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303
304 /* stats */
305 // combined size of all the packets read
306 uint64_t data_size;
307 /* number of packets successfully read for this stream */
308 uint64_t nb_packets;
309 // number of frames/samples retrieved from the decoder
310 uint64_t frames_decoded;
311 uint64_t samples_decoded;
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312} InputStream;
313
314typedef struct InputFile {
315 AVFormatContext *ctx;
316 int eof_reached; /* true if eof reached */
0b26ef42 317 int eagain; /* true if last read attempt returned EAGAIN */
f5e66827 318 int ist_index; /* index of first stream in ist_table */
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319 int loop; /* set number of times input stream should be looped */
320 int64_t duration; /* actual duration of the longest stream in a file
321 at the moment when looping happens */
322 AVRational time_base; /* time base of the duration */
f5e66827 323 int64_t ts_offset;
811bd078 324 int64_t start_time; /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
488a0fa6 325 int64_t recording_time;
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326 int nb_streams; /* number of stream that avconv is aware of; may be different
327 from ctx.nb_streams if new streams appear during av_read_frame() */
328 int rate_emu;
811bd078 329 int accurate_seek;
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330
331#if HAVE_PTHREADS
332 pthread_t thread; /* thread reading from this file */
333 int finished; /* the thread has exited */
334 int joined; /* the thread has been joined */
335 pthread_mutex_t fifo_lock; /* lock for access to fifo */
336 pthread_cond_t fifo_cond; /* the main thread will signal on this cond after reading from fifo */
337 AVFifoBuffer *fifo; /* demuxed packets are stored here; freed by the main thread */
338#endif
339} InputFile;
340
341typedef struct OutputStream {
342 int file_index; /* file index */
343 int index; /* stream index in the output file */
344 int source_index; /* InputStream index */
345 AVStream *st; /* stream in the output file */
346 int encoding_needed; /* true if encoding needed for this stream */
347 int frame_number;
348 /* input pts and corresponding output pts
349 for A/V sync */
350 // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
351 struct InputStream *sync_ist; /* input stream to sync against */
352 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
353 /* pts of the first frame encoded for this stream, used for limiting
354 * recording time */
355 int64_t first_pts;
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356 /* dts of the last packet sent to the muxer */
357 int64_t last_mux_dts;
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358
359 int nb_bitstream_filters;
360 const AVBitStreamFilter **bitstream_filters;
361 AVBSFContext **bsf_ctx;
362
38313626 363 AVCodecContext *enc_ctx;
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364 AVCodec *enc;
365 int64_t max_frames;
366 AVFrame *filtered_frame;
367
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368 void *hwaccel_ctx;
369
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370 /* video only */
371 AVRational frame_rate;
372 int force_fps;
373 int top_field_first;
374
375 float frame_aspect_ratio;
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376
377 /* forced key frames */
378 int64_t *forced_kf_pts;
379 int forced_kf_count;
380 int forced_kf_index;
381 char *forced_keyframes;
382
bbcedade 383 char *logfile_prefix;
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384 FILE *logfile;
385
386 OutputFilter *filter;
387 char *avfilter;
388
389 int64_t sws_flags;
9580818c 390 AVDictionary *encoder_opts;
5c7db097 391 AVDictionary *resample_opts;
57d24225 392 int finished; /* no more packets should be written for this stream */
f5e66827 393 int stream_copy;
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394
395 // init_output_stream() has been called for this stream
396 // The encoder and the bistream filters have been initialized and the stream
397 // parameters are set in the AVStream.
398 int initialized;
399
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400 const char *attachment_filename;
401 int copy_initial_nonkeyframes;
402
716d413c 403 enum AVPixelFormat pix_fmts[2];
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404
405 AVCodecParserContext *parser;
35c85806 406 AVCodecContext *parser_avctx;
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407
408 /* stats */
409 // combined size of all the packets written
410 uint64_t data_size;
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411 // number of packets send to the muxer
412 uint64_t packets_written;
413 // number of frames/samples sent to the encoder
414 uint64_t frames_encoded;
415 uint64_t samples_encoded;
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416
417 /* packet quality factor */
418 int quality;
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419
420 int max_muxing_queue_size;
421
422 /* the packets are buffered here until the muxer is ready to be initialized */
423 AVFifoBuffer *muxing_queue;
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424} OutputStream;
425
426typedef struct OutputFile {
427 AVFormatContext *ctx;
428 AVDictionary *opts;
429 int ost_index; /* index of the first stream in output_streams */
430 int64_t recording_time; /* desired length of the resulting file in microseconds */
431 int64_t start_time; /* start time in microseconds */
432 uint64_t limit_filesize;
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433
434 int shortest;
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435
436 int header_written;
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437} OutputFile;
438
439extern InputStream **input_streams;
440extern int nb_input_streams;
441extern InputFile **input_files;
442extern int nb_input_files;
443
444extern OutputStream **output_streams;
445extern int nb_output_streams;
446extern OutputFile **output_files;
447extern int nb_output_files;
448
449extern FilterGraph **filtergraphs;
450extern int nb_filtergraphs;
451
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452extern char *vstats_filename;
453
454extern float audio_drift_threshold;
455extern float dts_delta_threshold;
456
457extern int audio_volume;
458extern int audio_sync_method;
459extern int video_sync_method;
460extern int do_benchmark;
461extern int do_deinterlace;
462extern int do_hex_dump;
463extern int do_pkt_dump;
464extern int copy_ts;
465extern int copy_tb;
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466extern int exit_on_error;
467extern int print_stats;
468extern int qp_hist;
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469
470extern const AVIOInterruptCB int_cb;
471
472extern const OptionDef options[];
473
07fd0a22 474extern const HWAccel hwaccels[];
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475extern int hwaccel_lax_profile_check;
476extern AVBufferRef *hw_device_ctx;
07fd0a22 477
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478void reset_options(OptionsContext *o);
479void show_usage(void);
480
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481void opt_output_file(void *optctx, const char *filename);
482
483void assert_avoptions(AVDictionary *m);
484
485int guess_input_channel_layout(InputStream *ist);
486
487int configure_filtergraph(FilterGraph *fg);
488int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out);
fe2147e9 489int ist_in_filtergraph(FilterGraph *fg, InputStream *ist);
49670e42 490int filtergraph_is_simple(FilterGraph *fg);
73c6ec6d 491int init_simple_filtergraph(InputStream *ist, OutputStream *ost);
6d592fbd 492int init_complex_filtergraph(FilterGraph *fg);
f5e66827 493
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494int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame);
495int ifilter_parameters_from_decoder(InputFilter *ifilter, const AVCodecContext *avctx);
496
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497int avconv_parse_options(int argc, char **argv);
498
7671dd7c 499int vdpau_init(AVCodecContext *s);
35177ba7 500int dxva2_init(AVCodecContext *s);
1839fafa 501int vda_init(AVCodecContext *s);
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502int qsv_init(AVCodecContext *s);
503int qsv_transcode_init(OutputStream *ost);
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504int vaapi_decode_init(AVCodecContext *avctx);
505int vaapi_device_init(const char *device);
7671dd7c 506
f5e66827 507#endif /* AVCONV_H */