workaround apps which dont provided correctly padded streams
[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
5b6d5596 8#define LIBAVFORMAT_BUILD 4621
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 enum CodecID video_codec_id;
119 enum CodecID audio_codec_id;
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120} AVFormatParameters;
121
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122#define AVFMT_NOFILE 0x0001 /* no file should be opened */
123#define AVFMT_NEEDNUMBER 0x0002 /* needs '%d' in filename */
b9a281db 124#define AVFMT_SHOW_IDS 0x0008 /* show format stream IDs numbers */
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125#define AVFMT_RAWPICTURE 0x0020 /* format wants AVPicture structure for
126 raw picture data */
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127
128typedef struct AVOutputFormat {
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129 const char *name;
130 const char *long_name;
131 const char *mime_type;
132 const char *extensions; /* comma separated extensions */
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133 /* size of private data so that it can be allocated in the wrapper */
134 int priv_data_size;
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135 /* output support */
136 enum CodecID audio_codec; /* default audio codec */
137 enum CodecID video_codec; /* default video codec */
138 int (*write_header)(struct AVFormatContext *);
e928649b 139 int (*write_packet)(struct AVFormatContext *, AVPacket *pkt);
de6d9b64 140 int (*write_trailer)(struct AVFormatContext *);
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141 /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
142 int flags;
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143 /* currently only used to set pixel format if not YUV420P */
144 int (*set_parameters)(struct AVFormatContext *, AVFormatParameters *);
fe2d6fe2 145 int (*interleave_packet)(struct AVFormatContext *, AVPacket *out, AVPacket *in, int flush);
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146 /* private fields */
147 struct AVOutputFormat *next;
148} AVOutputFormat;
de6d9b64 149
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150typedef struct AVInputFormat {
151 const char *name;
152 const char *long_name;
153 /* size of private data so that it can be allocated in the wrapper */
154 int priv_data_size;
155 /* tell if a given file has a chance of being parsing by this format */
156 int (*read_probe)(AVProbeData *);
157 /* read the format header and initialize the AVFormatContext
de6d9b64 158 structure. Return 0 if OK. 'ap' if non NULL contains
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159 additionnal paramters. Only used in raw format right
160 now. 'av_new_stream' should be called to create new streams. */
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161 int (*read_header)(struct AVFormatContext *,
162 AVFormatParameters *ap);
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163 /* read one packet and put it in 'pkt'. pts and flags are also
164 set. 'av_new_stream' can be called only if the flag
da24c5e3 165 AVFMTCTX_NOHEADER is used. */
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166 int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
167 /* close the stream. The AVFormatContext and AVStreams are not
168 freed by this function */
169 int (*read_close)(struct AVFormatContext *);
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170 /**
171 * seek to a given timestamp relative to the frames in
172 * stream component stream_index
173 * @param stream_index must not be -1
174 * @param flags selects which direction should be preferred if no exact
175 * match is available
176 */
fb2758c8 177 int (*read_seek)(struct AVFormatContext *,
3ba1438d 178 int stream_index, int64_t timestamp, int flags);
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179 /**
180 * gets the next timestamp in AV_TIME_BASE units.
181 */
182 int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index,
183 int64_t *pos, int64_t pos_limit);
da24c5e3 184 /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
de6d9b64 185 int flags;
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186 /* if extensions are defined, then no probe is done. You should
187 usually not use extension format guessing because it is not
188 reliable enough */
189 const char *extensions;
190 /* general purpose read only value that the format can use */
191 int value;
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192
193 /* start/resume playing - only meaningful if using a network based format
194 (RTSP) */
195 int (*read_play)(struct AVFormatContext *);
196
197 /* pause playing - only meaningful if using a network based format
198 (RTSP) */
199 int (*read_pause)(struct AVFormatContext *);
200
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201 /* private fields */
202 struct AVInputFormat *next;
203} AVInputFormat;
de6d9b64 204
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205typedef struct AVIndexEntry {
206 int64_t pos;
207 int64_t timestamp;
208#define AVINDEX_KEYFRAME 0x0001
b754978a 209/* the following 2 flags indicate that the next/prev keyframe is known, and scaning for it isnt needed */
fb2758c8 210 int flags;
3e9245a9 211 int min_distance; /* min distance between this and the previous keyframe, used to avoid unneeded searching */
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212} AVIndexEntry;
213
de6d9b64 214typedef struct AVStream {
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215 int index; /* stream index in AVFormatContext */
216 int id; /* format specific stream id */
de6d9b64 217 AVCodecContext codec; /* codec context */
76c0441b 218 int r_frame_rate; /* real frame rate of the stream */
14bea432 219 int r_frame_rate_base;/* real frame rate base of the stream */
de6d9b64 220 void *priv_data;
b9a281db 221 /* internal data used in av_find_stream_info() */
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222 int64_t codec_info_duration;
223 int codec_info_nb_frames;
da24c5e3 224 /* encoding: PTS generation when outputing stream */
1e51d801 225 AVFrac pts;
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226 AVRational time_base;
227 int pts_wrap_bits; /* number of bits in pts (used for wrapping control) */
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228 /* ffmpeg.c private use */
229 int stream_copy; /* if TRUE, just copy stream */
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230 /* quality, as it has been removed from AVCodecContext and put in AVVideoFrame
231 * MN:dunno if thats the right place, for it */
232 float quality;
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233 /* decoding: position of the first frame of the component, in
234 AV_TIME_BASE fractional seconds. */
235 int64_t start_time;
236 /* decoding: duration of the stream, in AV_TIME_BASE fractional
237 seconds. */
238 int64_t duration;
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239
240 /* av_read_frame() support */
241 int need_parsing;
242 struct AVCodecParserContext *parser;
6ec87caa 243
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244 int64_t cur_dts;
245 int last_IP_duration;
77405fc8 246 int64_t last_IP_pts;
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247 /* av_seek_frame() support */
248 AVIndexEntry *index_entries; /* only used if the format does not
249 support seeking natively */
250 int nb_index_entries;
251 int index_entries_allocated_size;
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252} AVStream;
253
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254#define AVFMTCTX_NOHEADER 0x0001 /* signal that no header is present
255 (streams are added dynamically) */
256
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257#define MAX_STREAMS 20
258
259/* format I/O context */
260typedef struct AVFormatContext {
7fea94ce 261 const AVClass *av_class; /* set by av_alloc_format_context */
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262 /* can only be iformat or oformat, not both at the same time */
263 struct AVInputFormat *iformat;
264 struct AVOutputFormat *oformat;
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265 void *priv_data;
266 ByteIOContext pb;
267 int nb_streams;
268 AVStream *streams[MAX_STREAMS];
269 char filename[1024]; /* input or output filename */
270 /* stream info */
4568325a 271 int64_t timestamp;
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272 char title[512];
273 char author[512];
274 char copyright[512];
275 char comment[512];
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276 char album[512];
277 int year; /* ID3 year, 0 if none */
278 int track; /* track number, 0 if none */
279 char genre[32]; /* ID3 genre */
280
da24c5e3 281 int ctx_flags; /* format specific flags, see AVFMTCTX_xx */
916c80e9 282 /* private data for pts handling (do not modify directly) */
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283 /* This buffer is only needed when packets were already buffered but
284 not decoded, for example to get the codec parameters in mpeg
285 streams */
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286 struct AVPacketList *packet_buffer;
287
288 /* decoding: position of the first frame of the component, in
289 AV_TIME_BASE fractional seconds. NEVER set this value directly:
290 it is deduced from the AVStream values. */
291 int64_t start_time;
292 /* decoding: duration of the stream, in AV_TIME_BASE fractional
293 seconds. NEVER set this value directly: it is deduced from the
294 AVStream values. */
295 int64_t duration;
296 /* decoding: total file size. 0 if unknown */
297 int64_t file_size;
298 /* decoding: total stream bitrate in bit/s, 0 if not
299 available. Never set it directly if the file_size and the
300 duration are known as ffmpeg can compute it automatically. */
301 int bit_rate;
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302
303 /* av_read_frame() support */
304 AVStream *cur_st;
305 const uint8_t *cur_ptr;
306 int cur_len;
307 AVPacket cur_pkt;
308
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309 /* av_seek_frame() support */
310 int64_t data_offset; /* offset of the first packet */
311 int index_built;
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312
313 int mux_rate;
314 int packet_size;
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315 int preload;
316 int max_delay;
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317} AVFormatContext;
318
319typedef struct AVPacketList {
320 AVPacket pkt;
321 struct AVPacketList *next;
322} AVPacketList;
323
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324extern AVInputFormat *first_iformat;
325extern AVOutputFormat *first_oformat;
de6d9b64 326
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327/* still image support */
328struct AVInputImageContext;
329typedef struct AVInputImageContext AVInputImageContext;
330
331typedef struct AVImageInfo {
332 enum PixelFormat pix_fmt; /* requested pixel format */
333 int width; /* requested width */
334 int height; /* requested height */
7e2e1abf 335 int interleaved; /* image is interleaved (e.g. interleaved GIF) */
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336 AVPicture pict; /* returned allocated image */
337} AVImageInfo;
338
3b1a27e0 339/* AVImageFormat.flags field constants */
7e2e1abf 340#define AVIMAGE_INTERLEAVED 0x0001 /* image format support interleaved output */
3b1a27e0 341
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342typedef struct AVImageFormat {
343 const char *name;
344 const char *extensions;
345 /* tell if a given file has a chance of being parsing by this format */
346 int (*img_probe)(AVProbeData *);
347 /* read a whole image. 'alloc_cb' is called when the image size is
348 known so that the caller can allocate the image. If 'allo_cb'
349 returns non zero, then the parsing is aborted. Return '0' if
350 OK. */
351 int (*img_read)(ByteIOContext *,
352 int (*alloc_cb)(void *, AVImageInfo *info), void *);
353 /* write the image */
354 int supported_pixel_formats; /* mask of supported formats for output */
355 int (*img_write)(ByteIOContext *, AVImageInfo *);
3b1a27e0 356 int flags;
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357 struct AVImageFormat *next;
358} AVImageFormat;
359
360void av_register_image_format(AVImageFormat *img_fmt);
361AVImageFormat *av_probe_image_format(AVProbeData *pd);
362AVImageFormat *guess_image_format(const char *filename);
5b6d5596 363enum CodecID av_guess_image2_codec(const char *filename);
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364int av_read_image(ByteIOContext *pb, const char *filename,
365 AVImageFormat *fmt,
366 int (*alloc_cb)(void *, AVImageInfo *info), void *opaque);
367int av_write_image(ByteIOContext *pb, AVImageFormat *fmt, AVImageInfo *img);
368
369extern AVImageFormat *first_image_format;
370
371extern AVImageFormat pnm_image_format;
372extern AVImageFormat pbm_image_format;
373extern AVImageFormat pgm_image_format;
374extern AVImageFormat ppm_image_format;
8975ba81 375extern AVImageFormat pam_image_format;
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376extern AVImageFormat pgmyuv_image_format;
377extern AVImageFormat yuv_image_format;
3a13f6bd 378#ifdef CONFIG_ZLIB
0e04e4e9 379extern AVImageFormat png_image_format;
3a13f6bd 380#endif
0250738f 381extern AVImageFormat jpeg_image_format;
cdc90af0 382extern AVImageFormat gif_image_format;
6a91ec51 383extern AVImageFormat sgi_image_format;
290c5fa6 384
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385/* XXX: use automatic init with either ELF sections or C file parser */
386/* modules */
de6d9b64 387
b9a281db 388/* mpeg.c */
ee404803 389extern AVInputFormat mpegps_demux;
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390int mpegps_init(void);
391
392/* mpegts.c */
393extern AVInputFormat mpegts_demux;
394int mpegts_init(void);
de6d9b64 395
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396/* rm.c */
397int rm_init(void);
398
399/* crc.c */
400int crc_init(void);
401
402/* img.c */
403int img_init(void);
404
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405/* img2.c */
406int img2_init(void);
407
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408/* asf.c */
409int asf_init(void);
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410
411/* avienc.c */
b9a281db 412int avienc_init(void);
de6d9b64 413
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414/* avidec.c */
415int avidec_init(void);
6cea494e 416
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417/* swf.c */
418int swf_init(void);
419
420/* mov.c */
421int mov_init(void);
de6d9b64 422
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423/* movenc.c */
424int movenc_init(void);
425
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426/* flvenc.c */
427int flvenc_init(void);
428
429/* flvdec.c */
430int flvdec_init(void);
431
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432/* jpeg.c */
433int jpeg_init(void);
de6d9b64 434
6cea494e 435/* gif.c */
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436int gif_init(void);
437
6cea494e 438/* au.c */
b9a281db 439int au_init(void);
6cea494e 440
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441/* amr.c */
442int amr_init(void);
443
de6d9b64 444/* wav.c */
c3775e54 445int ff_wav_init(void);
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446
447/* raw.c */
fb2758c8 448int pcm_read_seek(AVFormatContext *s,
7b3c1382 449 int stream_index, int64_t timestamp, int flags);
b9a281db 450int raw_init(void);
de6d9b64 451
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452/* mp3.c */
453int mp3_init(void);
454
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455/* yuv4mpeg.c */
456int yuv4mpeg_init(void);
457
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458/* ogg.c */
459int ogg_init(void);
460
f20dca40 461/* dv.c */
c3775e54 462int ff_dv_init(void);
f20dca40 463
de6d9b64 464/* ffm.c */
b9a281db 465int ffm_init(void);
de6d9b64 466
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467/* rtsp.c */
468extern AVInputFormat redir_demux;
469int redir_open(AVFormatContext **ic_ptr, ByteIOContext *f);
470
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471/* 4xm.c */
472int fourxm_init(void);
473
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474/* psxstr.c */
475int str_init(void);
476
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477/* idroq.c */
478int roq_init(void);
479
480/* ipmovie.c */
481int ipmovie_init(void);
482
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483/* nut.c */
484int nut_init(void);
485
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486/* wc3movie.c */
487int wc3_init(void);
488
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489/* westwood.c */
490int westwood_init(void);
491
492/* segafilm.c */
493int film_init(void);
494
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495/* idcin.c */
496int idcin_init(void);
497
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498/* flic.c */
499int flic_init(void);
500
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501/* sierravmd.c */
502int vmd_init(void);
503
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504/* matroska.c */
505int matroska_init(void);
506
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507/* sol.c */
508int sol_init(void);
509
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510/* electronicarts.c */
511int ea_init(void);
512
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513#include "rtp.h"
514
515#include "rtsp.h"
516
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517/* yuv4mpeg.c */
518extern AVOutputFormat yuv4mpegpipe_oformat;
519
b9a281db 520/* utils.c */
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521void av_register_input_format(AVInputFormat *format);
522void av_register_output_format(AVOutputFormat *format);
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523AVOutputFormat *guess_stream_format(const char *short_name,
524 const char *filename, const char *mime_type);
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525AVOutputFormat *guess_format(const char *short_name,
526 const char *filename, const char *mime_type);
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527enum CodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
528 const char *filename, const char *mime_type, enum CodecType type);
de6d9b64 529
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530void av_hex_dump(FILE *f, uint8_t *buf, int size);
531void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload);
de6d9b64 532
94988531 533void av_register_all(void);
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534
535typedef struct FifoBuffer {
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536 uint8_t *buffer;
537 uint8_t *rptr, *wptr, *end;
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538} FifoBuffer;
539
540int fifo_init(FifoBuffer *f, int size);
541void fifo_free(FifoBuffer *f);
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542int fifo_size(FifoBuffer *f, uint8_t *rptr);
543int fifo_read(FifoBuffer *f, uint8_t *buf, int buf_size, uint8_t **rptr_ptr);
544void fifo_write(FifoBuffer *f, uint8_t *buf, int size, uint8_t **wptr_ptr);
7000a175 545int put_fifo(ByteIOContext *pb, FifoBuffer *f, int buf_size, uint8_t **rptr_ptr);
de6d9b64 546
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547/* media file input */
548AVInputFormat *av_find_input_format(const char *short_name);
94988531 549AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
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550int av_open_input_stream(AVFormatContext **ic_ptr,
551 ByteIOContext *pb, const char *filename,
552 AVInputFormat *fmt, AVFormatParameters *ap);
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553int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
554 AVInputFormat *fmt,
555 int buf_size,
556 AVFormatParameters *ap);
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557/* no av_open for output, so applications will need this: */
558AVFormatContext *av_alloc_format_context(void);
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559
560#define AVERROR_UNKNOWN (-1) /* unknown error */
561#define AVERROR_IO (-2) /* i/o error */
562#define AVERROR_NUMEXPECTED (-3) /* number syntax expected in filename */
563#define AVERROR_INVALIDDATA (-4) /* invalid data found */
564#define AVERROR_NOMEM (-5) /* not enough memory */
565#define AVERROR_NOFMT (-6) /* unknown format */
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566#define AVERROR_NOTSUPP (-7) /* operation not supported */
567
b9a281db 568int av_find_stream_info(AVFormatContext *ic);
de6d9b64 569int av_read_packet(AVFormatContext *s, AVPacket *pkt);
fb2758c8 570int av_read_frame(AVFormatContext *s, AVPacket *pkt);
3ba1438d 571int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags);
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572int av_read_play(AVFormatContext *s);
573int av_read_pause(AVFormatContext *s);
de6d9b64 574void av_close_input_file(AVFormatContext *s);
b9a281db 575AVStream *av_new_stream(AVFormatContext *s, int id);
9ee91c2f 576void av_set_pts_info(AVStream *s, int pts_wrap_bits,
916c80e9 577 int pts_num, int pts_den);
de6d9b64 578
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579#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward
580#define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes
581
b754978a 582int av_find_default_stream_index(AVFormatContext *s);
3ba1438d 583int av_index_search_timestamp(AVStream *st, int timestamp, int flags);
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584int av_add_index_entry(AVStream *st,
585 int64_t pos, int64_t timestamp, int distance, int flags);
3ba1438d 586int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags);
b754978a 587
b9a281db 588/* media file output */
290c5fa6 589int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap);
b9a281db 590int av_write_header(AVFormatContext *s);
e928649b 591int av_write_frame(AVFormatContext *s, AVPacket *pkt);
3c895fc0 592int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
e928649b 593
b9a281db 594int av_write_trailer(AVFormatContext *s);
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595
596void dump_format(AVFormatContext *ic,
597 int index,
598 const char *url,
599 int is_output);
600int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
445f1b83 601int parse_frame_rate(int *frame_rate, int *frame_rate_base, const char *arg);
0c1a9eda 602int64_t parse_date(const char *datestr, int duration);
de6d9b64 603
0c1a9eda 604int64_t av_gettime(void);
94988531 605
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606/* ffm specific for ffserver */
607#define FFM_PACKET_SIZE 4096
608offset_t ffm_read_write_index(int fd);
609void ffm_write_write_index(int fd, offset_t pos);
610void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size);
611
612int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
613
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614int get_frame_filename(char *buf, int buf_size,
615 const char *path, int number);
b9a281db 616int filename_number_test(const char *filename);
96baaa6a 617
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618/* grab specific */
619int video_grab_init(void);
620int audio_init(void);
96baaa6a 621
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622/* DV1394 */
623int dv1394_init(void);
f02be79d 624int dc1394_init(void);
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625
626#ifdef HAVE_AV_CONFIG_H
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627
628#include "os_support.h"
629
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630int strstart(const char *str, const char *val, const char **ptr);
631int stristart(const char *str, const char *val, const char **ptr);
632void pstrcpy(char *buf, int buf_size, const char *str);
633char *pstrcat(char *buf, int buf_size, const char *s);
fb025625 634
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635void __dynarray_add(unsigned long **tab_ptr, int *nb_ptr, unsigned long elem);
636
e4e70d2e 637#ifdef __GNUC__
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638#define dynarray_add(tab, nb_ptr, elem)\
639do {\
640 typeof(tab) _tab = (tab);\
641 typeof(elem) _elem = (elem);\
642 (void)sizeof(**_tab == _elem); /* check that types are compatible */\
643 __dynarray_add((unsigned long **)_tab, nb_ptr, (unsigned long)_elem);\
644} while(0)
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645#else
646#define dynarray_add(tab, nb_ptr, elem)\
647do {\
648 __dynarray_add((unsigned long **)(tab), nb_ptr, (unsigned long)(elem));\
649} while(0)
650#endif
39f472c3 651
f71869a4 652time_t mktimegm(struct tm *tm);
0c9fc6e1 653struct tm *brktimegm(time_t secs, struct tm *tm);
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654const char *small_strptime(const char *p, const char *fmt,
655 struct tm *dt);
656
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657struct in_addr;
658int resolve_host(struct in_addr *sin_addr, const char *hostname);
659
660void url_split(char *proto, int proto_size,
6ba5cbc6 661 char *authorization, int authorization_size,
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662 char *hostname, int hostname_size,
663 int *port_ptr,
664 char *path, int path_size,
665 const char *url);
666
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667int match_ext(const char *filename, const char *extensions);
668
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669#endif /* HAVE_AV_CONFIG_H */
670
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671#ifdef __cplusplus
672}
673#endif
674
fb025625 675#endif /* AVFORMAT_H */