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[libav.git] / libavformat / avformat.h
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1/*
2 * copyright (c) 2001 Fabrice Bellard
3 *
4 * This library 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 of the License, or (at your option) any later version.
8 *
9 * This library 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 this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
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19#ifndef AVFORMAT_H
20#define AVFORMAT_H
de6d9b64 21
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22#ifdef __cplusplus
23extern "C" {
24#endif
25
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26#define LIBAVFORMAT_VERSION_INT ((50<<16)+(5<<8)+0)
27#define LIBAVFORMAT_VERSION 50.5.0
5aa083ee 28#define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT
8026c3b5 29
5aa083ee 30#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION)
4b1f4f23 31
f71869a4 32#include <time.h>
67070e4f 33#include <stdio.h> /* FILE */
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34#include "avcodec.h"
35
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36#include "avio.h"
37
38/* packet functions */
39
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40#ifndef MAXINT64
41#define MAXINT64 int64_t_C(0x7fffffffffffffff)
42#endif
43
44#ifndef MININT64
45#define MININT64 int64_t_C(0x8000000000000000)
46#endif
47
de6d9b64 48typedef struct AVPacket {
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49 int64_t pts; ///< presentation time stamp in time_base units
50 int64_t dts; ///< decompression time stamp in time_base units
0c1a9eda 51 uint8_t *data;
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52 int size;
53 int stream_index;
54 int flags;
2692067a 55 int duration; ///< presentation duration in time_base units (0 if not available)
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56 void (*destruct)(struct AVPacket *);
57 void *priv;
2692067a 58 int64_t pos; ///< byte position in stream, -1 if unknown
115329f1 59} AVPacket;
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60#define PKT_FLAG_KEY 0x0001
61
63dd1377 62void av_destruct_packet_nofree(AVPacket *pkt);
90ad92b3 63void av_destruct_packet(AVPacket *pkt);
63dd1377 64
da24c5e3 65/* initialize optional fields of a packet */
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66static inline void av_init_packet(AVPacket *pkt)
67{
68 pkt->pts = AV_NOPTS_VALUE;
fb2758c8 69 pkt->dts = AV_NOPTS_VALUE;
2692067a 70 pkt->pos = -1;
fb2758c8 71 pkt->duration = 0;
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72 pkt->flags = 0;
73 pkt->stream_index = 0;
63dd1377 74 pkt->destruct= av_destruct_packet_nofree;
6fa5a56c 75}
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76
77int av_new_packet(AVPacket *pkt, int size);
2692067a 78int av_get_packet(ByteIOContext *s, AVPacket *pkt, int size);
fb2758c8 79int av_dup_packet(AVPacket *pkt);
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80
81/**
82 * Free a packet
83 *
84 * @param pkt packet to free
85 */
86static inline void av_free_packet(AVPacket *pkt)
87{
342474ab 88 if (pkt && pkt->destruct) {
bb270c08 89 pkt->destruct(pkt);
342474ab 90 }
6fa5a56c 91}
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92
93/*************************************************/
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94/* fractional numbers for exact pts handling */
95
96/* the exact value of the fractional number is: 'val + num / den'. num
97 is assumed to be such as 0 <= num < den */
98typedef struct AVFrac {
115329f1 99 int64_t val, num, den;
955ab9a4 100} AVFrac attribute_deprecated;
916c80e9 101
916c80e9 102/*************************************************/
b9a281db 103/* input/output formats */
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104
105struct AVFormatContext;
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106
107/* this structure contains the data a format has to probe a file */
108typedef struct AVProbeData {
5c91a675 109 const char *filename;
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110 unsigned char *buf;
111 int buf_size;
112} AVProbeData;
113
0288a747 114#define AVPROBE_SCORE_MAX 100 ///< max score, half of that is used for file extension based detection
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115
116typedef struct AVFormatParameters {
c0df9d75 117 AVRational time_base;
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118 int sample_rate;
119 int channels;
120 int width;
121 int height;
4606ac8d 122 enum PixelFormat pix_fmt;
290c5fa6 123 struct AVImageFormat *image_format;
7f172339 124 int channel; /* used to select dv channel */
6beefa40 125 const char *device; /* video, audio or DV device */
e3ee3283 126 const char *standard; /* tv standard, NTSC, PAL, SECAM */
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127 int mpeg2ts_raw:1; /* force raw MPEG2 transport stream output, if possible */
128 int mpeg2ts_compute_pcr:1; /* compute exact PCR for each transport
129 stream packet (only meaningful if
130 mpeg2ts_raw is TRUE */
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131 int initial_pause:1; /* do not begin to play the stream
132 immediately (RTSP only) */
4eb72c6b 133 int prealloced_context:1;
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134 enum CodecID video_codec_id;
135 enum CodecID audio_codec_id;
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136} AVFormatParameters;
137
b9a281db 138#define AVFMT_NOFILE 0x0001 /* no file should be opened */
115329f1 139#define AVFMT_NEEDNUMBER 0x0002 /* needs '%d' in filename */
b9a281db 140#define AVFMT_SHOW_IDS 0x0008 /* show format stream IDs numbers */
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141#define AVFMT_RAWPICTURE 0x0020 /* format wants AVPicture structure for
142 raw picture data */
c64d476c 143#define AVFMT_GLOBALHEADER 0x0040 /* format wants global header */
494bbf58 144#define AVFMT_NOTIMESTAMPS 0x0080 /* format doesnt need / has any timestamps */
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145
146typedef struct AVOutputFormat {
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147 const char *name;
148 const char *long_name;
149 const char *mime_type;
150 const char *extensions; /* comma separated extensions */
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151 /* size of private data so that it can be allocated in the wrapper */
152 int priv_data_size;
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153 /* output support */
154 enum CodecID audio_codec; /* default audio codec */
155 enum CodecID video_codec; /* default video codec */
156 int (*write_header)(struct AVFormatContext *);
e928649b 157 int (*write_packet)(struct AVFormatContext *, AVPacket *pkt);
de6d9b64 158 int (*write_trailer)(struct AVFormatContext *);
c64d476c 159 /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_GLOBALHEADER */
b9a281db 160 int flags;
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161 /* currently only used to set pixel format if not YUV420P */
162 int (*set_parameters)(struct AVFormatContext *, AVFormatParameters *);
fe2d6fe2 163 int (*interleave_packet)(struct AVFormatContext *, AVPacket *out, AVPacket *in, int flush);
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164 /* private fields */
165 struct AVOutputFormat *next;
166} AVOutputFormat;
de6d9b64 167
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168typedef struct AVInputFormat {
169 const char *name;
170 const char *long_name;
171 /* size of private data so that it can be allocated in the wrapper */
172 int priv_data_size;
173 /* tell if a given file has a chance of being parsing by this format */
174 int (*read_probe)(AVProbeData *);
175 /* read the format header and initialize the AVFormatContext
de6d9b64 176 structure. Return 0 if OK. 'ap' if non NULL contains
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177 additionnal paramters. Only used in raw format right
178 now. 'av_new_stream' should be called to create new streams. */
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179 int (*read_header)(struct AVFormatContext *,
180 AVFormatParameters *ap);
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181 /* read one packet and put it in 'pkt'. pts and flags are also
182 set. 'av_new_stream' can be called only if the flag
da24c5e3 183 AVFMTCTX_NOHEADER is used. */
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184 int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
185 /* close the stream. The AVFormatContext and AVStreams are not
186 freed by this function */
187 int (*read_close)(struct AVFormatContext *);
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188 /**
189 * seek to a given timestamp relative to the frames in
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190 * stream component stream_index
191 * @param stream_index must not be -1
115329f1 192 * @param flags selects which direction should be preferred if no exact
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193 * match is available
194 */
115329f1 195 int (*read_seek)(struct AVFormatContext *,
3ba1438d 196 int stream_index, int64_t timestamp, int flags);
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197 /**
198 * gets the next timestamp in AV_TIME_BASE units.
199 */
200 int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index,
201 int64_t *pos, int64_t pos_limit);
da24c5e3 202 /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
de6d9b64 203 int flags;
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204 /* if extensions are defined, then no probe is done. You should
205 usually not use extension format guessing because it is not
206 reliable enough */
207 const char *extensions;
208 /* general purpose read only value that the format can use */
209 int value;
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210
211 /* start/resume playing - only meaningful if using a network based format
212 (RTSP) */
213 int (*read_play)(struct AVFormatContext *);
214
215 /* pause playing - only meaningful if using a network based format
216 (RTSP) */
217 int (*read_pause)(struct AVFormatContext *);
218
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219 /* private fields */
220 struct AVInputFormat *next;
221} AVInputFormat;
de6d9b64 222
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223typedef struct AVIndexEntry {
224 int64_t pos;
225 int64_t timestamp;
226#define AVINDEX_KEYFRAME 0x0001
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227 int flags:2;
228 int size:30; //yeah trying to keep the size of this small to reduce memory requirements (its 24 vs 32 byte due to possible 8byte align)
3e9245a9 229 int min_distance; /* min distance between this and the previous keyframe, used to avoid unneeded searching */
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230} AVIndexEntry;
231
de6d9b64 232typedef struct AVStream {
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233 int index; /* stream index in AVFormatContext */
234 int id; /* format specific stream id */
01f4895c 235 AVCodecContext *codec; /* codec context */
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236 /**
237 * real base frame rate of the stream.
115329f1 238 * for example if the timebase is 1/90000 and all frames have either
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239 * approximately 3600 or 1800 timer ticks then r_frame_rate will be 50/1
240 */
241 AVRational r_frame_rate;
de6d9b64 242 void *priv_data;
b9a281db 243 /* internal data used in av_find_stream_info() */
115329f1 244 int64_t codec_info_duration;
fb2758c8 245 int codec_info_nb_frames;
da24c5e3 246 /* encoding: PTS generation when outputing stream */
1e51d801 247 AVFrac pts;
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248
249 /**
250 * this is the fundamental unit of time (in seconds) in terms
251 * of which frame timestamps are represented. for fixed-fps content,
252 * timebase should be 1/framerate and timestamp increments should be
253 * identically 1.
254 */
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255 AVRational time_base;
256 int pts_wrap_bits; /* number of bits in pts (used for wrapping control) */
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257 /* ffmpeg.c private use */
258 int stream_copy; /* if TRUE, just copy stream */
f3356e9c 259 enum AVDiscard discard; ///< selects which packets can be discarded at will and dont need to be demuxed
b4aea108 260 //FIXME move stuff to a flags field?
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261 /* quality, as it has been removed from AVCodecContext and put in AVVideoFrame
262 * MN:dunno if thats the right place, for it */
115329f1 263 float quality;
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264 /* decoding: position of the first frame of the component, in
265 AV_TIME_BASE fractional seconds. */
115329f1 266 int64_t start_time;
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267 /* decoding: duration of the stream, in AV_TIME_BASE fractional
268 seconds. */
269 int64_t duration;
fb2758c8 270
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271 char language[4]; /* ISO 639 3-letter language code (empty string if undefined) */
272
fb2758c8 273 /* av_read_frame() support */
7cbaa7ba 274 int need_parsing; ///< 1->full parsing needed, 2->only parse headers dont repack
fb2758c8 275 struct AVCodecParserContext *parser;
6ec87caa 276
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277 int64_t cur_dts;
278 int last_IP_duration;
77405fc8 279 int64_t last_IP_pts;
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280 /* av_seek_frame() support */
281 AVIndexEntry *index_entries; /* only used if the format does not
282 support seeking natively */
283 int nb_index_entries;
284 int index_entries_allocated_size;
115329f1 285
b4b87d48 286 int64_t nb_frames; ///< number of frames in this stream if known or 0
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287
288#define MAX_REORDER_DELAY 4
289 int64_t pts_buffer[MAX_REORDER_DELAY+1];
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290} AVStream;
291
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292#define AVFMTCTX_NOHEADER 0x0001 /* signal that no header is present
293 (streams are added dynamically) */
294
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295#define MAX_STREAMS 20
296
297/* format I/O context */
298typedef struct AVFormatContext {
7fea94ce 299 const AVClass *av_class; /* set by av_alloc_format_context */
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300 /* can only be iformat or oformat, not both at the same time */
301 struct AVInputFormat *iformat;
302 struct AVOutputFormat *oformat;
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303 void *priv_data;
304 ByteIOContext pb;
305 int nb_streams;
306 AVStream *streams[MAX_STREAMS];
307 char filename[1024]; /* input or output filename */
308 /* stream info */
4568325a 309 int64_t timestamp;
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310 char title[512];
311 char author[512];
312 char copyright[512];
313 char comment[512];
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314 char album[512];
315 int year; /* ID3 year, 0 if none */
316 int track; /* track number, 0 if none */
317 char genre[32]; /* ID3 genre */
318
da24c5e3 319 int ctx_flags; /* format specific flags, see AVFMTCTX_xx */
916c80e9 320 /* private data for pts handling (do not modify directly) */
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321 /* This buffer is only needed when packets were already buffered but
322 not decoded, for example to get the codec parameters in mpeg
323 streams */
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324 struct AVPacketList *packet_buffer;
325
326 /* decoding: position of the first frame of the component, in
327 AV_TIME_BASE fractional seconds. NEVER set this value directly:
328 it is deduced from the AVStream values. */
115329f1 329 int64_t start_time;
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330 /* decoding: duration of the stream, in AV_TIME_BASE fractional
331 seconds. NEVER set this value directly: it is deduced from the
332 AVStream values. */
333 int64_t duration;
334 /* decoding: total file size. 0 if unknown */
335 int64_t file_size;
336 /* decoding: total stream bitrate in bit/s, 0 if not
337 available. Never set it directly if the file_size and the
338 duration are known as ffmpeg can compute it automatically. */
339 int bit_rate;
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340
341 /* av_read_frame() support */
342 AVStream *cur_st;
343 const uint8_t *cur_ptr;
344 int cur_len;
345 AVPacket cur_pkt;
346
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347 /* av_seek_frame() support */
348 int64_t data_offset; /* offset of the first packet */
349 int index_built;
115329f1 350
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351 int mux_rate;
352 int packet_size;
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353 int preload;
354 int max_delay;
8108551a 355
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356#define AVFMT_NOOUTPUTLOOP -1
357#define AVFMT_INFINITEOUTPUTLOOP 0
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358 /* number of times to loop output in formats that support it */
359 int loop_output;
115329f1 360
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361 int flags;
362#define AVFMT_FLAG_GENPTS 0x0001 ///< generate pts if missing even if it requires parsing future frames
2c00106c 363#define AVFMT_FLAG_IGNIDX 0x0002 ///< ignore index
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364
365 int loop_input;
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366 /* decoding: size of data to probe; encoding unused */
367 unsigned int probesize;
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368} AVFormatContext;
369
370typedef struct AVPacketList {
371 AVPacket pkt;
372 struct AVPacketList *next;
373} AVPacketList;
374
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375extern AVInputFormat *first_iformat;
376extern AVOutputFormat *first_oformat;
de6d9b64 377
290c5fa6 378/* still image support */
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379struct AVInputImageContext attribute_deprecated;
380typedef struct AVInputImageContext AVInputImageContext attribute_deprecated;
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381
382typedef struct AVImageInfo {
383 enum PixelFormat pix_fmt; /* requested pixel format */
384 int width; /* requested width */
385 int height; /* requested height */
7e2e1abf 386 int interleaved; /* image is interleaved (e.g. interleaved GIF) */
290c5fa6 387 AVPicture pict; /* returned allocated image */
955ab9a4 388} AVImageInfo attribute_deprecated;
290c5fa6 389
3b1a27e0 390/* AVImageFormat.flags field constants */
7e2e1abf 391#define AVIMAGE_INTERLEAVED 0x0001 /* image format support interleaved output */
3b1a27e0 392
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393typedef struct AVImageFormat {
394 const char *name;
395 const char *extensions;
396 /* tell if a given file has a chance of being parsing by this format */
397 int (*img_probe)(AVProbeData *);
398 /* read a whole image. 'alloc_cb' is called when the image size is
399 known so that the caller can allocate the image. If 'allo_cb'
400 returns non zero, then the parsing is aborted. Return '0' if
401 OK. */
115329f1 402 int (*img_read)(ByteIOContext *,
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403 int (*alloc_cb)(void *, AVImageInfo *info), void *);
404 /* write the image */
405 int supported_pixel_formats; /* mask of supported formats for output */
406 int (*img_write)(ByteIOContext *, AVImageInfo *);
3b1a27e0 407 int flags;
290c5fa6 408 struct AVImageFormat *next;
955ab9a4 409} AVImageFormat attribute_deprecated;
290c5fa6 410
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411void av_register_image_format(AVImageFormat *img_fmt) attribute_deprecated;
412AVImageFormat *av_probe_image_format(AVProbeData *pd) attribute_deprecated;
413AVImageFormat *guess_image_format(const char *filename) attribute_deprecated;
5b6d5596 414enum CodecID av_guess_image2_codec(const char *filename);
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415int av_read_image(ByteIOContext *pb, const char *filename,
416 AVImageFormat *fmt,
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417 int (*alloc_cb)(void *, AVImageInfo *info), void *opaque) attribute_deprecated;
418int av_write_image(ByteIOContext *pb, AVImageFormat *fmt, AVImageInfo *img) attribute_deprecated;
290c5fa6 419
955ab9a4 420extern AVImageFormat *first_image_format attribute_deprecated;
290c5fa6 421
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422/* XXX: use automatic init with either ELF sections or C file parser */
423/* modules */
de6d9b64 424
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425#include "rtp.h"
426
427#include "rtsp.h"
428
b9a281db 429/* utils.c */
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430void av_register_input_format(AVInputFormat *format);
431void av_register_output_format(AVOutputFormat *format);
115329f1 432AVOutputFormat *guess_stream_format(const char *short_name,
36ada60c 433 const char *filename, const char *mime_type);
115329f1 434AVOutputFormat *guess_format(const char *short_name,
b9a281db 435 const char *filename, const char *mime_type);
115329f1 436enum CodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
5b6d5596 437 const char *filename, const char *mime_type, enum CodecType type);
de6d9b64 438
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439void av_hex_dump(FILE *f, uint8_t *buf, int size);
440void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload);
de6d9b64 441
94988531 442void av_register_all(void);
de6d9b64 443
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444/* media file input */
445AVInputFormat *av_find_input_format(const char *short_name);
94988531 446AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
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447int av_open_input_stream(AVFormatContext **ic_ptr,
448 ByteIOContext *pb, const char *filename,
da24c5e3 449 AVInputFormat *fmt, AVFormatParameters *ap);
115329f1 450int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
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451 AVInputFormat *fmt,
452 int buf_size,
453 AVFormatParameters *ap);
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454/* no av_open for output, so applications will need this: */
455AVFormatContext *av_alloc_format_context(void);
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456
457#define AVERROR_UNKNOWN (-1) /* unknown error */
458#define AVERROR_IO (-2) /* i/o error */
459#define AVERROR_NUMEXPECTED (-3) /* number syntax expected in filename */
460#define AVERROR_INVALIDDATA (-4) /* invalid data found */
461#define AVERROR_NOMEM (-5) /* not enough memory */
462#define AVERROR_NOFMT (-6) /* unknown format */
fb2758c8 463#define AVERROR_NOTSUPP (-7) /* operation not supported */
115329f1 464
b9a281db 465int av_find_stream_info(AVFormatContext *ic);
de6d9b64 466int av_read_packet(AVFormatContext *s, AVPacket *pkt);
fb2758c8 467int av_read_frame(AVFormatContext *s, AVPacket *pkt);
3ba1438d 468int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags);
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469int av_read_play(AVFormatContext *s);
470int av_read_pause(AVFormatContext *s);
de6d9b64 471void av_close_input_file(AVFormatContext *s);
b9a281db 472AVStream *av_new_stream(AVFormatContext *s, int id);
9ee91c2f 473void av_set_pts_info(AVStream *s, int pts_wrap_bits,
916c80e9 474 int pts_num, int pts_den);
de6d9b64 475
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476#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward
477#define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes
27a5fe5f 478#define AVSEEK_FLAG_ANY 4 ///< seek to any frame, even non keyframes
3ba1438d 479
b754978a 480int av_find_default_stream_index(AVFormatContext *s);
dc56fc38 481int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags);
3e9245a9 482int av_add_index_entry(AVStream *st,
30a43f2d 483 int64_t pos, int64_t timestamp, int size, int distance, int flags);
3ba1438d 484int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags);
22ffac70 485void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp);
b754978a 486
b9a281db 487/* media file output */
290c5fa6 488int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap);
b9a281db 489int av_write_header(AVFormatContext *s);
e928649b 490int av_write_frame(AVFormatContext *s, AVPacket *pkt);
3c895fc0 491int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
f21c0b4c 492int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush);
e928649b 493
b9a281db 494int av_write_trailer(AVFormatContext *s);
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495
496void dump_format(AVFormatContext *ic,
115329f1 497 int index,
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498 const char *url,
499 int is_output);
500int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
445f1b83 501int parse_frame_rate(int *frame_rate, int *frame_rate_base, const char *arg);
0c1a9eda 502int64_t parse_date(const char *datestr, int duration);
de6d9b64 503
0c1a9eda 504int64_t av_gettime(void);
94988531 505
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506/* ffm specific for ffserver */
507#define FFM_PACKET_SIZE 4096
508offset_t ffm_read_write_index(int fd);
509void ffm_write_write_index(int fd, offset_t pos);
510void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size);
511
512int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
513
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514int av_get_frame_filename(char *buf, int buf_size,
515 const char *path, int number);
516int av_filename_number_test(const char *filename);
96baaa6a 517
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518/* grab specific */
519int video_grab_init(void);
520int audio_init(void);
96baaa6a 521
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522/* DV1394 */
523int dv1394_init(void);
f02be79d 524int dc1394_init(void);
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525
526#ifdef HAVE_AV_CONFIG_H
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527
528#include "os_support.h"
529
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530int strstart(const char *str, const char *val, const char **ptr);
531int stristart(const char *str, const char *val, const char **ptr);
532void pstrcpy(char *buf, int buf_size, const char *str);
533char *pstrcat(char *buf, int buf_size, const char *s);
fb025625 534
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535void __dynarray_add(unsigned long **tab_ptr, int *nb_ptr, unsigned long elem);
536
e4e70d2e 537#ifdef __GNUC__
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538#define dynarray_add(tab, nb_ptr, elem)\
539do {\
540 typeof(tab) _tab = (tab);\
541 typeof(elem) _elem = (elem);\
542 (void)sizeof(**_tab == _elem); /* check that types are compatible */\
543 __dynarray_add((unsigned long **)_tab, nb_ptr, (unsigned long)_elem);\
544} while(0)
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545#else
546#define dynarray_add(tab, nb_ptr, elem)\
547do {\
548 __dynarray_add((unsigned long **)(tab), nb_ptr, (unsigned long)(elem));\
549} while(0)
550#endif
39f472c3 551
f71869a4 552time_t mktimegm(struct tm *tm);
0c9fc6e1 553struct tm *brktimegm(time_t secs, struct tm *tm);
115329f1 554const char *small_strptime(const char *p, const char *fmt,
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555 struct tm *dt);
556
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557struct in_addr;
558int resolve_host(struct in_addr *sin_addr, const char *hostname);
559
560void url_split(char *proto, int proto_size,
6ba5cbc6 561 char *authorization, int authorization_size,
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562 char *hostname, int hostname_size,
563 int *port_ptr,
564 char *path, int path_size,
565 const char *url);
566
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567int match_ext(const char *filename, const char *extensions);
568
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569#endif /* HAVE_AV_CONFIG_H */
570
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571#ifdef __cplusplus
572}
573#endif
574
fb025625 575#endif /* AVFORMAT_H */
f3356e9c 576