avconv: split option parsing into a separate file.
[libav.git] / avconv.h
CommitLineData
f5e66827
AK
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;
116
117 int video_disable;
118 int audio_disable;
119 int subtitle_disable;
120 int data_disable;
121
122 /* indexed by output file stream index */
123 int *streamid_map;
124 int nb_streamid_map;
125
126 SpecifierOpt *metadata;
127 int nb_metadata;
128 SpecifierOpt *max_frames;
129 int nb_max_frames;
130 SpecifierOpt *bitstream_filters;
131 int nb_bitstream_filters;
132 SpecifierOpt *codec_tags;
133 int nb_codec_tags;
134 SpecifierOpt *sample_fmts;
135 int nb_sample_fmts;
136 SpecifierOpt *qscale;
137 int nb_qscale;
138 SpecifierOpt *forced_key_frames;
139 int nb_forced_key_frames;
140 SpecifierOpt *force_fps;
141 int nb_force_fps;
142 SpecifierOpt *frame_aspect_ratios;
143 int nb_frame_aspect_ratios;
144 SpecifierOpt *rc_overrides;
145 int nb_rc_overrides;
146 SpecifierOpt *intra_matrices;
147 int nb_intra_matrices;
148 SpecifierOpt *inter_matrices;
149 int nb_inter_matrices;
150 SpecifierOpt *top_field_first;
151 int nb_top_field_first;
152 SpecifierOpt *metadata_map;
153 int nb_metadata_map;
154 SpecifierOpt *presets;
155 int nb_presets;
156 SpecifierOpt *copy_initial_nonkeyframes;
157 int nb_copy_initial_nonkeyframes;
158 SpecifierOpt *filters;
159 int nb_filters;
160} OptionsContext;
161
162typedef struct InputFilter {
163 AVFilterContext *filter;
164 struct InputStream *ist;
165 struct FilterGraph *graph;
166 uint8_t *name;
167} InputFilter;
168
169typedef struct OutputFilter {
170 AVFilterContext *filter;
171 struct OutputStream *ost;
172 struct FilterGraph *graph;
173 uint8_t *name;
174
175 /* temporary storage until stream maps are processed */
176 AVFilterInOut *out_tmp;
177} OutputFilter;
178
179typedef struct FilterGraph {
180 int index;
181 const char *graph_desc;
182
183 AVFilterGraph *graph;
184
185 InputFilter **inputs;
186 int nb_inputs;
187 OutputFilter **outputs;
188 int nb_outputs;
189} FilterGraph;
190
191typedef struct InputStream {
192 int file_index;
193 AVStream *st;
194 int discard; /* true if stream data should be discarded */
195 int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
196 AVCodec *dec;
197 AVFrame *decoded_frame;
198
199 int64_t start; /* time when read started */
200 /* predicted dts of the next packet read for this stream or (when there are
201 * several frames in a packet) of the next frame in current packet */
202 int64_t next_dts;
203 /* dts of the last packet read for this stream */
204 int64_t last_dts;
205 PtsCorrectionContext pts_ctx;
206 double ts_scale;
207 int is_start; /* is 1 at the start and after a discontinuity */
208 int showed_multi_packet_warning;
209 AVDictionary *opts;
210 AVRational framerate; /* framerate forced with -r */
211
212 int resample_height;
213 int resample_width;
214 int resample_pix_fmt;
215
216 int resample_sample_fmt;
217 int resample_sample_rate;
218 int resample_channels;
219 uint64_t resample_channel_layout;
220
221 /* a pool of free buffers for decoded data */
222 FrameBuffer *buffer_pool;
223
224 /* decoded data from this stream goes into all those filters
225 * currently video and audio only */
226 InputFilter **filters;
227 int nb_filters;
228} InputStream;
229
230typedef struct InputFile {
231 AVFormatContext *ctx;
232 int eof_reached; /* true if eof reached */
233 int ist_index; /* index of first stream in ist_table */
234 int buffer_size; /* current total buffer size */
235 int64_t ts_offset;
236 int nb_streams; /* number of stream that avconv is aware of; may be different
237 from ctx.nb_streams if new streams appear during av_read_frame() */
238 int rate_emu;
239
240#if HAVE_PTHREADS
241 pthread_t thread; /* thread reading from this file */
242 int finished; /* the thread has exited */
243 int joined; /* the thread has been joined */
244 pthread_mutex_t fifo_lock; /* lock for access to fifo */
245 pthread_cond_t fifo_cond; /* the main thread will signal on this cond after reading from fifo */
246 AVFifoBuffer *fifo; /* demuxed packets are stored here; freed by the main thread */
247#endif
248} InputFile;
249
250typedef struct OutputStream {
251 int file_index; /* file index */
252 int index; /* stream index in the output file */
253 int source_index; /* InputStream index */
254 AVStream *st; /* stream in the output file */
255 int encoding_needed; /* true if encoding needed for this stream */
256 int frame_number;
257 /* input pts and corresponding output pts
258 for A/V sync */
259 // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
260 struct InputStream *sync_ist; /* input stream to sync against */
261 int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
262 /* pts of the first frame encoded for this stream, used for limiting
263 * recording time */
264 int64_t first_pts;
265 AVBitStreamFilterContext *bitstream_filters;
266 AVCodec *enc;
267 int64_t max_frames;
268 AVFrame *filtered_frame;
269
270 /* video only */
271 AVRational frame_rate;
272 int force_fps;
273 int top_field_first;
274
275 float frame_aspect_ratio;
276 float last_quality;
277
278 /* forced key frames */
279 int64_t *forced_kf_pts;
280 int forced_kf_count;
281 int forced_kf_index;
282 char *forced_keyframes;
283
284 FILE *logfile;
285
286 OutputFilter *filter;
287 char *avfilter;
288
289 int64_t sws_flags;
290 AVDictionary *opts;
291 int is_past_recording_time;
292 int stream_copy;
293 const char *attachment_filename;
294 int copy_initial_nonkeyframes;
295
296 enum PixelFormat pix_fmts[2];
297} OutputStream;
298
299typedef struct OutputFile {
300 AVFormatContext *ctx;
301 AVDictionary *opts;
302 int ost_index; /* index of the first stream in output_streams */
303 int64_t recording_time; /* desired length of the resulting file in microseconds */
304 int64_t start_time; /* start time in microseconds */
305 uint64_t limit_filesize;
306} OutputFile;
307
308extern InputStream **input_streams;
309extern int nb_input_streams;
310extern InputFile **input_files;
311extern int nb_input_files;
312
313extern OutputStream **output_streams;
314extern int nb_output_streams;
315extern OutputFile **output_files;
316extern int nb_output_files;
317
318extern FilterGraph **filtergraphs;
319extern int nb_filtergraphs;
320
321extern char *pass_logfilename_prefix;
322extern char *vstats_filename;
323
324extern float audio_drift_threshold;
325extern float dts_delta_threshold;
326
327extern int audio_volume;
328extern int audio_sync_method;
329extern int video_sync_method;
330extern int do_benchmark;
331extern int do_deinterlace;
332extern int do_hex_dump;
333extern int do_pkt_dump;
334extern int copy_ts;
335extern int copy_tb;
336extern int opt_shortest;
337extern int exit_on_error;
338extern int print_stats;
339extern int qp_hist;
340extern int same_quant;
341
342extern const AVIOInterruptCB int_cb;
343
344extern const OptionDef options[];
345
346void reset_options(OptionsContext *o);
347void show_usage(void);
348
349int opt_cpuflags(const char *opt, const char *arg);
350
351void opt_output_file(void *optctx, const char *filename);
352
353void assert_avoptions(AVDictionary *m);
354
355int guess_input_channel_layout(InputStream *ist);
356
357int configure_filtergraph(FilterGraph *fg);
358int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out);
359
360#endif /* AVCONV_H */