Move av_reverse table to libavcodec
[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"
39#include "libavfilter/avfiltergraph.h"
40
41#include "libavutil/avutil.h"
42#include "libavutil/dict.h"
43#include "libavutil/fifo.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/* select an input stream for an output stream */
53typedef struct StreamMap {
54 int disabled; /** 1 is this mapping is disabled by a negative map */
55 int file_index;
56 int stream_index;
57 int sync_file_index;
58 int sync_stream_index;
59 char *linklabel; /** name of an output link, for mapping lavfi outputs */
60} StreamMap;
61
62/**
63 * select an input file for an output file
64 */
65typedef struct MetadataMap {
66 int file; ///< file index
67 char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
68 int index; ///< stream/chapter/program number
69} MetadataMap;
70
71typedef struct OptionsContext {
72 /* input/output options */
73 int64_t start_time;
74 const char *format;
75
76 SpecifierOpt *codec_names;
77 int nb_codec_names;
78 SpecifierOpt *audio_channels;
79 int nb_audio_channels;
80 SpecifierOpt *audio_sample_rate;
81 int nb_audio_sample_rate;
82 SpecifierOpt *frame_rates;
83 int nb_frame_rates;
84 SpecifierOpt *frame_sizes;
85 int nb_frame_sizes;
86 SpecifierOpt *frame_pix_fmts;
87 int nb_frame_pix_fmts;
88
89 /* input options */
90 int64_t input_ts_offset;
91 int rate_emu;
92
93 SpecifierOpt *ts_scale;
94 int nb_ts_scale;
95 SpecifierOpt *dump_attachment;
96 int nb_dump_attachment;
97
98 /* output options */
99 StreamMap *stream_maps;
100 int nb_stream_maps;
101 /* first item specifies output metadata, second is input */
102 MetadataMap (*meta_data_maps)[2];
103 int nb_meta_data_maps;
104 int metadata_global_manual;
105 int metadata_streams_manual;
106 int metadata_chapters_manual;
107 const char **attachments;
108 int nb_attachments;
109
110 int chapters_input_file;
111
112 int64_t recording_time;
113 uint64_t limit_filesize;
114 float mux_preload;
115 float mux_max_delay;
3c0df905 116 int shortest;
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117
118 int video_disable;
119 int audio_disable;
120 int subtitle_disable;
121 int data_disable;
122
123 /* indexed by output file stream index */
124 int *streamid_map;
125 int nb_streamid_map;
126
127 SpecifierOpt *metadata;
128 int nb_metadata;
129 SpecifierOpt *max_frames;
130 int nb_max_frames;
131 SpecifierOpt *bitstream_filters;
132 int nb_bitstream_filters;
133 SpecifierOpt *codec_tags;
134 int nb_codec_tags;
135 SpecifierOpt *sample_fmts;
136 int nb_sample_fmts;
137 SpecifierOpt *qscale;
138 int nb_qscale;
139 SpecifierOpt *forced_key_frames;
140 int nb_forced_key_frames;
141 SpecifierOpt *force_fps;
142 int nb_force_fps;
143 SpecifierOpt *frame_aspect_ratios;
144 int nb_frame_aspect_ratios;
145 SpecifierOpt *rc_overrides;
146 int nb_rc_overrides;
147 SpecifierOpt *intra_matrices;
148 int nb_intra_matrices;
149 SpecifierOpt *inter_matrices;
150 int nb_inter_matrices;
151 SpecifierOpt *top_field_first;
152 int nb_top_field_first;
153 SpecifierOpt *metadata_map;
154 int nb_metadata_map;
155 SpecifierOpt *presets;
156 int nb_presets;
157 SpecifierOpt *copy_initial_nonkeyframes;
158 int nb_copy_initial_nonkeyframes;
159 SpecifierOpt *filters;
160 int nb_filters;
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161 SpecifierOpt *pass;
162 int nb_pass;
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163 SpecifierOpt *passlogfiles;
164 int nb_passlogfiles;
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165} OptionsContext;
166
167typedef struct InputFilter {
168 AVFilterContext *filter;
169 struct InputStream *ist;
170 struct FilterGraph *graph;
171 uint8_t *name;
172} InputFilter;
173
174typedef struct OutputFilter {
175 AVFilterContext *filter;
176 struct OutputStream *ost;
177 struct FilterGraph *graph;
178 uint8_t *name;
179
180 /* temporary storage until stream maps are processed */
181 AVFilterInOut *out_tmp;
182} OutputFilter;
183
184typedef struct FilterGraph {
185 int index;
186 const char *graph_desc;
187
188 AVFilterGraph *graph;
189
190 InputFilter **inputs;
191 int nb_inputs;
192 OutputFilter **outputs;
193 int nb_outputs;
194} FilterGraph;
195
196typedef struct InputStream {
197 int file_index;
198 AVStream *st;
199 int discard; /* true if stream data should be discarded */
200 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
201 AVCodec *dec;
202 AVFrame *decoded_frame;
203
204 int64_t start; /* time when read started */
205 /* predicted dts of the next packet read for this stream or (when there are
206 * several frames in a packet) of the next frame in current packet */
207 int64_t next_dts;
208 /* dts of the last packet read for this stream */
209 int64_t last_dts;
210 PtsCorrectionContext pts_ctx;
211 double ts_scale;
212 int is_start; /* is 1 at the start and after a discontinuity */
213 int showed_multi_packet_warning;
214 AVDictionary *opts;
215 AVRational framerate; /* framerate forced with -r */
216
217 int resample_height;
218 int resample_width;
219 int resample_pix_fmt;
220
221 int resample_sample_fmt;
222 int resample_sample_rate;
223 int resample_channels;
224 uint64_t resample_channel_layout;
225
226 /* a pool of free buffers for decoded data */
227 FrameBuffer *buffer_pool;
228
229 /* decoded data from this stream goes into all those filters
230 * currently video and audio only */
231 InputFilter **filters;
232 int nb_filters;
233} InputStream;
234
235typedef struct InputFile {
236 AVFormatContext *ctx;
237 int eof_reached; /* true if eof reached */
0b26ef42 238 int eagain; /* true if last read attempt returned EAGAIN */
f5e66827 239 int ist_index; /* index of first stream in ist_table */
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240 int64_t ts_offset;
241 int nb_streams; /* number of stream that avconv is aware of; may be different
242 from ctx.nb_streams if new streams appear during av_read_frame() */
243 int rate_emu;
244
245#if HAVE_PTHREADS
246 pthread_t thread; /* thread reading from this file */
247 int finished; /* the thread has exited */
248 int joined; /* the thread has been joined */
249 pthread_mutex_t fifo_lock; /* lock for access to fifo */
250 pthread_cond_t fifo_cond; /* the main thread will signal on this cond after reading from fifo */
251 AVFifoBuffer *fifo; /* demuxed packets are stored here; freed by the main thread */
252#endif
253} InputFile;
254
255typedef struct OutputStream {
256 int file_index; /* file index */
257 int index; /* stream index in the output file */
258 int source_index; /* InputStream index */
259 AVStream *st; /* stream in the output file */
260 int encoding_needed; /* true if encoding needed for this stream */
261 int frame_number;
262 /* input pts and corresponding output pts
263 for A/V sync */
264 // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
265 struct InputStream *sync_ist; /* input stream to sync against */
266 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
267 /* pts of the first frame encoded for this stream, used for limiting
268 * recording time */
269 int64_t first_pts;
270 AVBitStreamFilterContext *bitstream_filters;
271 AVCodec *enc;
272 int64_t max_frames;
273 AVFrame *filtered_frame;
274
275 /* video only */
276 AVRational frame_rate;
277 int force_fps;
278 int top_field_first;
279
280 float frame_aspect_ratio;
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281
282 /* forced key frames */
283 int64_t *forced_kf_pts;
284 int forced_kf_count;
285 int forced_kf_index;
286 char *forced_keyframes;
287
bbcedade 288 char *logfile_prefix;
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289 FILE *logfile;
290
291 OutputFilter *filter;
292 char *avfilter;
293
294 int64_t sws_flags;
295 AVDictionary *opts;
57d24225 296 int finished; /* no more packets should be written for this stream */
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297 int stream_copy;
298 const char *attachment_filename;
299 int copy_initial_nonkeyframes;
300
716d413c 301 enum AVPixelFormat pix_fmts[2];
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302} OutputStream;
303
304typedef struct OutputFile {
305 AVFormatContext *ctx;
306 AVDictionary *opts;
307 int ost_index; /* index of the first stream in output_streams */
308 int64_t recording_time; /* desired length of the resulting file in microseconds */
309 int64_t start_time; /* start time in microseconds */
310 uint64_t limit_filesize;
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311
312 int shortest;
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313} OutputFile;
314
315extern InputStream **input_streams;
316extern int nb_input_streams;
317extern InputFile **input_files;
318extern int nb_input_files;
319
320extern OutputStream **output_streams;
321extern int nb_output_streams;
322extern OutputFile **output_files;
323extern int nb_output_files;
324
325extern FilterGraph **filtergraphs;
326extern int nb_filtergraphs;
327
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328extern char *vstats_filename;
329
330extern float audio_drift_threshold;
331extern float dts_delta_threshold;
332
333extern int audio_volume;
334extern int audio_sync_method;
335extern int video_sync_method;
336extern int do_benchmark;
337extern int do_deinterlace;
338extern int do_hex_dump;
339extern int do_pkt_dump;
340extern int copy_ts;
341extern int copy_tb;
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342extern int exit_on_error;
343extern int print_stats;
344extern int qp_hist;
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345
346extern const AVIOInterruptCB int_cb;
347
348extern const OptionDef options[];
349
350void reset_options(OptionsContext *o);
351void show_usage(void);
352
11d957fb 353int opt_cpuflags(void *optctx, const char *opt, const char *arg);
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354
355void opt_output_file(void *optctx, const char *filename);
356
357void assert_avoptions(AVDictionary *m);
358
359int guess_input_channel_layout(InputStream *ist);
360
361int configure_filtergraph(FilterGraph *fg);
362int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out);
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363int ist_in_filtergraph(FilterGraph *fg, InputStream *ist);
364FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost);
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365
366#endif /* AVCONV_H */