FAQ entry for manually changing fourcc
[libav.git] / libavformat / avformat.h
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1#ifndef AVFORMAT_H
2#define AVFORMAT_H
de6d9b64 3
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4#ifdef __cplusplus
5extern "C" {
6#endif
7
3ba1438d 8#define LIBAVFORMAT_BUILD 4619
8026c3b5 9
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10#define LIBAVFORMAT_VERSION_INT FFMPEG_VERSION_INT
11#define LIBAVFORMAT_VERSION FFMPEG_VERSION
12#define LIBAVFORMAT_IDENT "FFmpeg" FFMPEG_VERSION "b" AV_STRINGIFY(LIBAVFORMAT_BUILD)
4b1f4f23 13
f71869a4 14#include <time.h>
67070e4f 15#include <stdio.h> /* FILE */
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16#include "avcodec.h"
17
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18#include "avio.h"
19
20/* packet functions */
21
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22#ifndef MAXINT64
23#define MAXINT64 int64_t_C(0x7fffffffffffffff)
24#endif
25
26#ifndef MININT64
27#define MININT64 int64_t_C(0x8000000000000000)
28#endif
29
de6d9b64 30typedef struct AVPacket {
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31 int64_t pts; /* presentation time stamp in AV_TIME_BASE units (or
32 pts_den units in muxers or demuxers) */
33 int64_t dts; /* decompression time stamp in AV_TIME_BASE units (or
34 pts_den units in muxers or demuxers) */
0c1a9eda 35 uint8_t *data;
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36 int size;
37 int stream_index;
38 int flags;
fb2758c8 39 int duration; /* presentation duration (0 if not available) */
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40 void (*destruct)(struct AVPacket *);
41 void *priv;
de6d9b64 42} AVPacket;
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43#define PKT_FLAG_KEY 0x0001
44
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45void av_destruct_packet_nofree(AVPacket *pkt);
46
da24c5e3 47/* initialize optional fields of a packet */
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48static inline void av_init_packet(AVPacket *pkt)
49{
50 pkt->pts = AV_NOPTS_VALUE;
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51 pkt->dts = AV_NOPTS_VALUE;
52 pkt->duration = 0;
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53 pkt->flags = 0;
54 pkt->stream_index = 0;
63dd1377 55 pkt->destruct= av_destruct_packet_nofree;
6fa5a56c 56}
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57
58int av_new_packet(AVPacket *pkt, int size);
fb2758c8 59int av_dup_packet(AVPacket *pkt);
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60
61/**
62 * Free a packet
63 *
64 * @param pkt packet to free
65 */
66static inline void av_free_packet(AVPacket *pkt)
67{
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68 if (pkt && pkt->destruct) {
69 pkt->destruct(pkt);
70 }
6fa5a56c 71}
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72
73/*************************************************/
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74/* fractional numbers for exact pts handling */
75
76/* the exact value of the fractional number is: 'val + num / den'. num
77 is assumed to be such as 0 <= num < den */
78typedef struct AVFrac {
0c1a9eda 79 int64_t val, num, den;
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80} AVFrac;
81
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82void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den);
83void av_frac_add(AVFrac *f, int64_t incr);
84void av_frac_set(AVFrac *f, int64_t val);
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85
86/*************************************************/
b9a281db 87/* input/output formats */
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88
89struct AVFormatContext;
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90
91/* this structure contains the data a format has to probe a file */
92typedef struct AVProbeData {
5c91a675 93 const char *filename;
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94 unsigned char *buf;
95 int buf_size;
96} AVProbeData;
97
98#define AVPROBE_SCORE_MAX 100
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99
100typedef struct AVFormatParameters {
101 int frame_rate;
14bea432 102 int frame_rate_base;
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103 int sample_rate;
104 int channels;
105 int width;
106 int height;
4606ac8d 107 enum PixelFormat pix_fmt;
290c5fa6 108 struct AVImageFormat *image_format;
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109 int channel; /* used to select dv channel */
110 const char *device; /* video4linux, audio or DV device */
e3ee3283 111 const char *standard; /* tv standard, NTSC, PAL, SECAM */
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112 int mpeg2ts_raw:1; /* force raw MPEG2 transport stream output, if possible */
113 int mpeg2ts_compute_pcr:1; /* compute exact PCR for each transport
114 stream packet (only meaningful if
115 mpeg2ts_raw is TRUE */
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116 int initial_pause:1; /* do not begin to play the stream
117 immediately (RTSP only) */
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118} AVFormatParameters;
119
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120#define AVFMT_NOFILE 0x0001 /* no file should be opened */
121#define AVFMT_NEEDNUMBER 0x0002 /* needs '%d' in filename */
b9a281db 122#define AVFMT_SHOW_IDS 0x0008 /* show format stream IDs numbers */
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123#define AVFMT_RAWPICTURE 0x0020 /* format wants AVPicture structure for
124 raw picture data */
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125
126typedef struct AVOutputFormat {
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127 const char *name;
128 const char *long_name;
129 const char *mime_type;
130 const char *extensions; /* comma separated extensions */
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131 /* size of private data so that it can be allocated in the wrapper */
132 int priv_data_size;
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133 /* output support */
134 enum CodecID audio_codec; /* default audio codec */
135 enum CodecID video_codec; /* default video codec */
136 int (*write_header)(struct AVFormatContext *);
e928649b 137 int (*write_packet)(struct AVFormatContext *, AVPacket *pkt);
de6d9b64 138 int (*write_trailer)(struct AVFormatContext *);
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139 /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
140 int flags;
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141 /* currently only used to set pixel format if not YUV420P */
142 int (*set_parameters)(struct AVFormatContext *, AVFormatParameters *);
fe2d6fe2 143 int (*interleave_packet)(struct AVFormatContext *, AVPacket *out, AVPacket *in, int flush);
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144 /* private fields */
145 struct AVOutputFormat *next;
146} AVOutputFormat;
de6d9b64 147
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148typedef struct AVInputFormat {
149 const char *name;
150 const char *long_name;
151 /* size of private data so that it can be allocated in the wrapper */
152 int priv_data_size;
153 /* tell if a given file has a chance of being parsing by this format */
154 int (*read_probe)(AVProbeData *);
155 /* read the format header and initialize the AVFormatContext
de6d9b64 156 structure. Return 0 if OK. 'ap' if non NULL contains
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157 additionnal paramters. Only used in raw format right
158 now. 'av_new_stream' should be called to create new streams. */
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159 int (*read_header)(struct AVFormatContext *,
160 AVFormatParameters *ap);
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161 /* read one packet and put it in 'pkt'. pts and flags are also
162 set. 'av_new_stream' can be called only if the flag
da24c5e3 163 AVFMTCTX_NOHEADER is used. */
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164 int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
165 /* close the stream. The AVFormatContext and AVStreams are not
166 freed by this function */
167 int (*read_close)(struct AVFormatContext *);
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168 /**
169 * seek to a given timestamp relative to the frames in
170 * stream component stream_index
171 * @param stream_index must not be -1
172 * @param flags selects which direction should be preferred if no exact
173 * match is available
174 */
fb2758c8 175 int (*read_seek)(struct AVFormatContext *,
3ba1438d 176 int stream_index, int64_t timestamp, int flags);
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177 /**
178 * gets the next timestamp in AV_TIME_BASE units.
179 */
180 int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index,
181 int64_t *pos, int64_t pos_limit);
da24c5e3 182 /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
de6d9b64 183 int flags;
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184 /* if extensions are defined, then no probe is done. You should
185 usually not use extension format guessing because it is not
186 reliable enough */
187 const char *extensions;
188 /* general purpose read only value that the format can use */
189 int value;
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190
191 /* start/resume playing - only meaningful if using a network based format
192 (RTSP) */
193 int (*read_play)(struct AVFormatContext *);
194
195 /* pause playing - only meaningful if using a network based format
196 (RTSP) */
197 int (*read_pause)(struct AVFormatContext *);
198
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199 /* private fields */
200 struct AVInputFormat *next;
201} AVInputFormat;
de6d9b64 202
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203typedef struct AVIndexEntry {
204 int64_t pos;
205 int64_t timestamp;
206#define AVINDEX_KEYFRAME 0x0001
b754978a 207/* the following 2 flags indicate that the next/prev keyframe is known, and scaning for it isnt needed */
fb2758c8 208 int flags;
3e9245a9 209 int min_distance; /* min distance between this and the previous keyframe, used to avoid unneeded searching */
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210} AVIndexEntry;
211
de6d9b64 212typedef struct AVStream {
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213 int index; /* stream index in AVFormatContext */
214 int id; /* format specific stream id */
de6d9b64 215 AVCodecContext codec; /* codec context */
76c0441b 216 int r_frame_rate; /* real frame rate of the stream */
14bea432 217 int r_frame_rate_base;/* real frame rate base of the stream */
de6d9b64 218 void *priv_data;
b9a281db 219 /* internal data used in av_find_stream_info() */
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220 int64_t codec_info_duration;
221 int codec_info_nb_frames;
da24c5e3 222 /* encoding: PTS generation when outputing stream */
1e51d801 223 AVFrac pts;
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224 AVRational time_base;
225 int pts_wrap_bits; /* number of bits in pts (used for wrapping control) */
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226 /* ffmpeg.c private use */
227 int stream_copy; /* if TRUE, just copy stream */
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228 /* quality, as it has been removed from AVCodecContext and put in AVVideoFrame
229 * MN:dunno if thats the right place, for it */
230 float quality;
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231 /* decoding: position of the first frame of the component, in
232 AV_TIME_BASE fractional seconds. */
233 int64_t start_time;
234 /* decoding: duration of the stream, in AV_TIME_BASE fractional
235 seconds. */
236 int64_t duration;
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237
238 /* av_read_frame() support */
239 int need_parsing;
240 struct AVCodecParserContext *parser;
6ec87caa 241
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242 int64_t cur_dts;
243 int last_IP_duration;
77405fc8 244 int64_t last_IP_pts;
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245 /* av_seek_frame() support */
246 AVIndexEntry *index_entries; /* only used if the format does not
247 support seeking natively */
248 int nb_index_entries;
249 int index_entries_allocated_size;
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250} AVStream;
251
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252#define AVFMTCTX_NOHEADER 0x0001 /* signal that no header is present
253 (streams are added dynamically) */
254
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255#define MAX_STREAMS 20
256
257/* format I/O context */
258typedef struct AVFormatContext {
7fea94ce 259 const AVClass *av_class; /* set by av_alloc_format_context */
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260 /* can only be iformat or oformat, not both at the same time */
261 struct AVInputFormat *iformat;
262 struct AVOutputFormat *oformat;
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263 void *priv_data;
264 ByteIOContext pb;
265 int nb_streams;
266 AVStream *streams[MAX_STREAMS];
267 char filename[1024]; /* input or output filename */
268 /* stream info */
4568325a 269 int64_t timestamp;
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270 char title[512];
271 char author[512];
272 char copyright[512];
273 char comment[512];
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274 char album[512];
275 int year; /* ID3 year, 0 if none */
276 int track; /* track number, 0 if none */
277 char genre[32]; /* ID3 genre */
278
da24c5e3 279 int ctx_flags; /* format specific flags, see AVFMTCTX_xx */
916c80e9 280 /* private data for pts handling (do not modify directly) */
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281 /* This buffer is only needed when packets were already buffered but
282 not decoded, for example to get the codec parameters in mpeg
283 streams */
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284 struct AVPacketList *packet_buffer;
285
286 /* decoding: position of the first frame of the component, in
287 AV_TIME_BASE fractional seconds. NEVER set this value directly:
288 it is deduced from the AVStream values. */
289 int64_t start_time;
290 /* decoding: duration of the stream, in AV_TIME_BASE fractional
291 seconds. NEVER set this value directly: it is deduced from the
292 AVStream values. */
293 int64_t duration;
294 /* decoding: total file size. 0 if unknown */
295 int64_t file_size;
296 /* decoding: total stream bitrate in bit/s, 0 if not
297 available. Never set it directly if the file_size and the
298 duration are known as ffmpeg can compute it automatically. */
299 int bit_rate;
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300
301 /* av_read_frame() support */
302 AVStream *cur_st;
303 const uint8_t *cur_ptr;
304 int cur_len;
305 AVPacket cur_pkt;
306
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307 /* av_seek_frame() support */
308 int64_t data_offset; /* offset of the first packet */
309 int index_built;
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310
311 int mux_rate;
312 int packet_size;
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313} AVFormatContext;
314
315typedef struct AVPacketList {
316 AVPacket pkt;
317 struct AVPacketList *next;
318} AVPacketList;
319
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320extern AVInputFormat *first_iformat;
321extern AVOutputFormat *first_oformat;
de6d9b64 322
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323/* still image support */
324struct AVInputImageContext;
325typedef struct AVInputImageContext AVInputImageContext;
326
327typedef struct AVImageInfo {
328 enum PixelFormat pix_fmt; /* requested pixel format */
329 int width; /* requested width */
330 int height; /* requested height */
7e2e1abf 331 int interleaved; /* image is interleaved (e.g. interleaved GIF) */
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332 AVPicture pict; /* returned allocated image */
333} AVImageInfo;
334
3b1a27e0 335/* AVImageFormat.flags field constants */
7e2e1abf 336#define AVIMAGE_INTERLEAVED 0x0001 /* image format support interleaved output */
3b1a27e0 337
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338typedef struct AVImageFormat {
339 const char *name;
340 const char *extensions;
341 /* tell if a given file has a chance of being parsing by this format */
342 int (*img_probe)(AVProbeData *);
343 /* read a whole image. 'alloc_cb' is called when the image size is
344 known so that the caller can allocate the image. If 'allo_cb'
345 returns non zero, then the parsing is aborted. Return '0' if
346 OK. */
347 int (*img_read)(ByteIOContext *,
348 int (*alloc_cb)(void *, AVImageInfo *info), void *);
349 /* write the image */
350 int supported_pixel_formats; /* mask of supported formats for output */
351 int (*img_write)(ByteIOContext *, AVImageInfo *);
3b1a27e0 352 int flags;
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353 struct AVImageFormat *next;
354} AVImageFormat;
355
356void av_register_image_format(AVImageFormat *img_fmt);
357AVImageFormat *av_probe_image_format(AVProbeData *pd);
358AVImageFormat *guess_image_format(const char *filename);
359int av_read_image(ByteIOContext *pb, const char *filename,
360 AVImageFormat *fmt,
361 int (*alloc_cb)(void *, AVImageInfo *info), void *opaque);
362int av_write_image(ByteIOContext *pb, AVImageFormat *fmt, AVImageInfo *img);
363
364extern AVImageFormat *first_image_format;
365
366extern AVImageFormat pnm_image_format;
367extern AVImageFormat pbm_image_format;
368extern AVImageFormat pgm_image_format;
369extern AVImageFormat ppm_image_format;
8975ba81 370extern AVImageFormat pam_image_format;
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371extern AVImageFormat pgmyuv_image_format;
372extern AVImageFormat yuv_image_format;
3a13f6bd 373#ifdef CONFIG_ZLIB
0e04e4e9 374extern AVImageFormat png_image_format;
3a13f6bd 375#endif
0250738f 376extern AVImageFormat jpeg_image_format;
cdc90af0 377extern AVImageFormat gif_image_format;
6a91ec51 378extern AVImageFormat sgi_image_format;
290c5fa6 379
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380/* XXX: use automatic init with either ELF sections or C file parser */
381/* modules */
de6d9b64 382
b9a281db 383/* mpeg.c */
ee404803 384extern AVInputFormat mpegps_demux;
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385int mpegps_init(void);
386
387/* mpegts.c */
388extern AVInputFormat mpegts_demux;
389int mpegts_init(void);
de6d9b64 390
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391/* rm.c */
392int rm_init(void);
393
394/* crc.c */
395int crc_init(void);
396
397/* img.c */
398int img_init(void);
399
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400/* img2.c */
401int img2_init(void);
402
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403/* asf.c */
404int asf_init(void);
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405
406/* avienc.c */
b9a281db 407int avienc_init(void);
de6d9b64 408
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409/* avidec.c */
410int avidec_init(void);
6cea494e 411
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412/* swf.c */
413int swf_init(void);
414
415/* mov.c */
416int mov_init(void);
de6d9b64 417
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418/* movenc.c */
419int movenc_init(void);
420
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421/* flvenc.c */
422int flvenc_init(void);
423
424/* flvdec.c */
425int flvdec_init(void);
426
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427/* jpeg.c */
428int jpeg_init(void);
de6d9b64 429
6cea494e 430/* gif.c */
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431int gif_init(void);
432
6cea494e 433/* au.c */
b9a281db 434int au_init(void);
6cea494e 435
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436/* amr.c */
437int amr_init(void);
438
de6d9b64 439/* wav.c */
c3775e54 440int ff_wav_init(void);
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441
442/* raw.c */
fb2758c8 443int pcm_read_seek(AVFormatContext *s,
7b3c1382 444 int stream_index, int64_t timestamp, int flags);
b9a281db 445int raw_init(void);
de6d9b64 446
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447/* mp3.c */
448int mp3_init(void);
449
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450/* yuv4mpeg.c */
451int yuv4mpeg_init(void);
452
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453/* ogg.c */
454int ogg_init(void);
455
f20dca40 456/* dv.c */
c3775e54 457int ff_dv_init(void);
f20dca40 458
de6d9b64 459/* ffm.c */
b9a281db 460int ffm_init(void);
de6d9b64 461
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462/* rtsp.c */
463extern AVInputFormat redir_demux;
464int redir_open(AVFormatContext **ic_ptr, ByteIOContext *f);
465
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466/* 4xm.c */
467int fourxm_init(void);
468
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469/* psxstr.c */
470int str_init(void);
471
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472/* idroq.c */
473int roq_init(void);
474
475/* ipmovie.c */
476int ipmovie_init(void);
477
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478/* nut.c */
479int nut_init(void);
480
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481/* wc3movie.c */
482int wc3_init(void);
483
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484/* westwood.c */
485int westwood_init(void);
486
487/* segafilm.c */
488int film_init(void);
489
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490/* idcin.c */
491int idcin_init(void);
492
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493/* flic.c */
494int flic_init(void);
495
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496/* sierravmd.c */
497int vmd_init(void);
498
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499/* matroska.c */
500int matroska_init(void);
501
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502/* sol.c */
503int sol_init(void);
504
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505#include "rtp.h"
506
507#include "rtsp.h"
508
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509/* yuv4mpeg.c */
510extern AVOutputFormat yuv4mpegpipe_oformat;
511
b9a281db 512/* utils.c */
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513void av_register_input_format(AVInputFormat *format);
514void av_register_output_format(AVOutputFormat *format);
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515AVOutputFormat *guess_stream_format(const char *short_name,
516 const char *filename, const char *mime_type);
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517AVOutputFormat *guess_format(const char *short_name,
518 const char *filename, const char *mime_type);
de6d9b64 519
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520void av_hex_dump(FILE *f, uint8_t *buf, int size);
521void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload);
de6d9b64 522
94988531 523void av_register_all(void);
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524
525typedef struct FifoBuffer {
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526 uint8_t *buffer;
527 uint8_t *rptr, *wptr, *end;
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528} FifoBuffer;
529
530int fifo_init(FifoBuffer *f, int size);
531void fifo_free(FifoBuffer *f);
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532int fifo_size(FifoBuffer *f, uint8_t *rptr);
533int fifo_read(FifoBuffer *f, uint8_t *buf, int buf_size, uint8_t **rptr_ptr);
534void fifo_write(FifoBuffer *f, uint8_t *buf, int size, uint8_t **wptr_ptr);
7000a175 535int put_fifo(ByteIOContext *pb, FifoBuffer *f, int buf_size, uint8_t **rptr_ptr);
de6d9b64 536
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537/* media file input */
538AVInputFormat *av_find_input_format(const char *short_name);
94988531 539AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
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540int av_open_input_stream(AVFormatContext **ic_ptr,
541 ByteIOContext *pb, const char *filename,
542 AVInputFormat *fmt, AVFormatParameters *ap);
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543int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
544 AVInputFormat *fmt,
545 int buf_size,
546 AVFormatParameters *ap);
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547/* no av_open for output, so applications will need this: */
548AVFormatContext *av_alloc_format_context(void);
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549
550#define AVERROR_UNKNOWN (-1) /* unknown error */
551#define AVERROR_IO (-2) /* i/o error */
552#define AVERROR_NUMEXPECTED (-3) /* number syntax expected in filename */
553#define AVERROR_INVALIDDATA (-4) /* invalid data found */
554#define AVERROR_NOMEM (-5) /* not enough memory */
555#define AVERROR_NOFMT (-6) /* unknown format */
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556#define AVERROR_NOTSUPP (-7) /* operation not supported */
557
b9a281db 558int av_find_stream_info(AVFormatContext *ic);
de6d9b64 559int av_read_packet(AVFormatContext *s, AVPacket *pkt);
fb2758c8 560int av_read_frame(AVFormatContext *s, AVPacket *pkt);
3ba1438d 561int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags);
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562int av_read_play(AVFormatContext *s);
563int av_read_pause(AVFormatContext *s);
de6d9b64 564void av_close_input_file(AVFormatContext *s);
b9a281db 565AVStream *av_new_stream(AVFormatContext *s, int id);
9ee91c2f 566void av_set_pts_info(AVStream *s, int pts_wrap_bits,
916c80e9 567 int pts_num, int pts_den);
de6d9b64 568
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569#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward
570#define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes
571
b754978a 572int av_find_default_stream_index(AVFormatContext *s);
3ba1438d 573int av_index_search_timestamp(AVStream *st, int timestamp, int flags);
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574int av_add_index_entry(AVStream *st,
575 int64_t pos, int64_t timestamp, int distance, int flags);
3ba1438d 576int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags);
b754978a 577
b9a281db 578/* media file output */
290c5fa6 579int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap);
b9a281db 580int av_write_header(AVFormatContext *s);
e928649b 581int av_write_frame(AVFormatContext *s, AVPacket *pkt);
3c895fc0 582int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
e928649b 583
b9a281db 584int av_write_trailer(AVFormatContext *s);
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585
586void dump_format(AVFormatContext *ic,
587 int index,
588 const char *url,
589 int is_output);
590int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
445f1b83 591int parse_frame_rate(int *frame_rate, int *frame_rate_base, const char *arg);
0c1a9eda 592int64_t parse_date(const char *datestr, int duration);
de6d9b64 593
0c1a9eda 594int64_t av_gettime(void);
94988531 595
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596/* ffm specific for ffserver */
597#define FFM_PACKET_SIZE 4096
598offset_t ffm_read_write_index(int fd);
599void ffm_write_write_index(int fd, offset_t pos);
600void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size);
601
602int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
603
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604int get_frame_filename(char *buf, int buf_size,
605 const char *path, int number);
b9a281db 606int filename_number_test(const char *filename);
96baaa6a 607
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608/* grab specific */
609int video_grab_init(void);
610int audio_init(void);
96baaa6a 611
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612/* DV1394 */
613int dv1394_init(void);
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614
615#ifdef HAVE_AV_CONFIG_H
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616
617#include "os_support.h"
618
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619int strstart(const char *str, const char *val, const char **ptr);
620int stristart(const char *str, const char *val, const char **ptr);
621void pstrcpy(char *buf, int buf_size, const char *str);
622char *pstrcat(char *buf, int buf_size, const char *s);
fb025625 623
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624void __dynarray_add(unsigned long **tab_ptr, int *nb_ptr, unsigned long elem);
625
e4e70d2e 626#ifdef __GNUC__
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627#define dynarray_add(tab, nb_ptr, elem)\
628do {\
629 typeof(tab) _tab = (tab);\
630 typeof(elem) _elem = (elem);\
631 (void)sizeof(**_tab == _elem); /* check that types are compatible */\
632 __dynarray_add((unsigned long **)_tab, nb_ptr, (unsigned long)_elem);\
633} while(0)
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634#else
635#define dynarray_add(tab, nb_ptr, elem)\
636do {\
637 __dynarray_add((unsigned long **)(tab), nb_ptr, (unsigned long)(elem));\
638} while(0)
639#endif
39f472c3 640
f71869a4 641time_t mktimegm(struct tm *tm);
0c9fc6e1 642struct tm *brktimegm(time_t secs, struct tm *tm);
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643const char *small_strptime(const char *p, const char *fmt,
644 struct tm *dt);
645
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646struct in_addr;
647int resolve_host(struct in_addr *sin_addr, const char *hostname);
648
649void url_split(char *proto, int proto_size,
6ba5cbc6 650 char *authorization, int authorization_size,
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651 char *hostname, int hostname_size,
652 int *port_ptr,
653 char *path, int path_size,
654 const char *url);
655
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656int match_ext(const char *filename, const char *extensions);
657
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658#endif /* HAVE_AV_CONFIG_H */
659
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660#ifdef __cplusplus
661}
662#endif
663
fb025625 664#endif /* AVFORMAT_H */