Disable B-frames decoding until they produce correct picture
[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
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8#define LIBAVFORMAT_VERSION_INT ((50<<16)+(5<<8)+0)
9#define LIBAVFORMAT_VERSION 50.5.0
5aa083ee 10#define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT
8026c3b5 11
5aa083ee 12#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION)
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 time_base units
32 int64_t dts; ///< decompression time stamp in time_base units
0c1a9eda 33 uint8_t *data;
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34 int size;
35 int stream_index;
36 int flags;
2692067a 37 int duration; ///< presentation duration in time_base units (0 if not available)
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38 void (*destruct)(struct AVPacket *);
39 void *priv;
2692067a 40 int64_t pos; ///< byte position in stream, -1 if unknown
115329f1 41} AVPacket;
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42#define PKT_FLAG_KEY 0x0001
43
63dd1377 44void av_destruct_packet_nofree(AVPacket *pkt);
90ad92b3 45void av_destruct_packet(AVPacket *pkt);
63dd1377 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;
fb2758c8 51 pkt->dts = AV_NOPTS_VALUE;
2692067a 52 pkt->pos = -1;
fb2758c8 53 pkt->duration = 0;
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54 pkt->flags = 0;
55 pkt->stream_index = 0;
63dd1377 56 pkt->destruct= av_destruct_packet_nofree;
6fa5a56c 57}
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58
59int av_new_packet(AVPacket *pkt, int size);
2692067a 60int av_get_packet(ByteIOContext *s, AVPacket *pkt, int size);
fb2758c8 61int av_dup_packet(AVPacket *pkt);
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62
63/**
64 * Free a packet
65 *
66 * @param pkt packet to free
67 */
68static inline void av_free_packet(AVPacket *pkt)
69{
342474ab 70 if (pkt && pkt->destruct) {
bb270c08 71 pkt->destruct(pkt);
342474ab 72 }
6fa5a56c 73}
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74
75/*************************************************/
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76/* fractional numbers for exact pts handling */
77
78/* the exact value of the fractional number is: 'val + num / den'. num
79 is assumed to be such as 0 <= num < den */
80typedef struct AVFrac {
115329f1 81 int64_t val, num, den;
955ab9a4 82} AVFrac attribute_deprecated;
916c80e9 83
916c80e9 84/*************************************************/
b9a281db 85/* input/output formats */
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86
87struct AVFormatContext;
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88
89/* this structure contains the data a format has to probe a file */
90typedef struct AVProbeData {
5c91a675 91 const char *filename;
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92 unsigned char *buf;
93 int buf_size;
94} AVProbeData;
95
0288a747 96#define AVPROBE_SCORE_MAX 100 ///< max score, half of that is used for file extension based detection
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97
98typedef struct AVFormatParameters {
c0df9d75 99 AVRational time_base;
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100 int sample_rate;
101 int channels;
102 int width;
103 int height;
4606ac8d 104 enum PixelFormat pix_fmt;
290c5fa6 105 struct AVImageFormat *image_format;
7f172339 106 int channel; /* used to select dv channel */
6beefa40 107 const char *device; /* video, audio or DV device */
e3ee3283 108 const char *standard; /* tv standard, NTSC, PAL, SECAM */
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109 int mpeg2ts_raw:1; /* force raw MPEG2 transport stream output, if possible */
110 int mpeg2ts_compute_pcr:1; /* compute exact PCR for each transport
111 stream packet (only meaningful if
112 mpeg2ts_raw is TRUE */
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113 int initial_pause:1; /* do not begin to play the stream
114 immediately (RTSP only) */
4eb72c6b 115 int prealloced_context:1;
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116 enum CodecID video_codec_id;
117 enum CodecID audio_codec_id;
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118} AVFormatParameters;
119
b9a281db 120#define AVFMT_NOFILE 0x0001 /* no file should be opened */
115329f1 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 */
c64d476c 125#define AVFMT_GLOBALHEADER 0x0040 /* format wants global header */
494bbf58 126#define AVFMT_NOTIMESTAMPS 0x0080 /* format doesnt need / has any timestamps */
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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 *);
c64d476c 141 /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_GLOBALHEADER */
b9a281db 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
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172 * stream component stream_index
173 * @param stream_index must not be -1
115329f1 174 * @param flags selects which direction should be preferred if no exact
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175 * match is available
176 */
115329f1 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
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209 int flags:2;
210 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 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 */
01f4895c 217 AVCodecContext *codec; /* codec context */
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218 /**
219 * real base frame rate of the stream.
115329f1 220 * for example if the timebase is 1/90000 and all frames have either
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221 * approximately 3600 or 1800 timer ticks then r_frame_rate will be 50/1
222 */
223 AVRational r_frame_rate;
de6d9b64 224 void *priv_data;
b9a281db 225 /* internal data used in av_find_stream_info() */
115329f1 226 int64_t codec_info_duration;
fb2758c8 227 int codec_info_nb_frames;
da24c5e3 228 /* encoding: PTS generation when outputing stream */
1e51d801 229 AVFrac pts;
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230
231 /**
232 * this is the fundamental unit of time (in seconds) in terms
233 * of which frame timestamps are represented. for fixed-fps content,
234 * timebase should be 1/framerate and timestamp increments should be
235 * identically 1.
236 */
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237 AVRational time_base;
238 int pts_wrap_bits; /* number of bits in pts (used for wrapping control) */
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239 /* ffmpeg.c private use */
240 int stream_copy; /* if TRUE, just copy stream */
f3356e9c 241 enum AVDiscard discard; ///< selects which packets can be discarded at will and dont need to be demuxed
b4aea108 242 //FIXME move stuff to a flags field?
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243 /* quality, as it has been removed from AVCodecContext and put in AVVideoFrame
244 * MN:dunno if thats the right place, for it */
115329f1 245 float quality;
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246 /* decoding: position of the first frame of the component, in
247 AV_TIME_BASE fractional seconds. */
115329f1 248 int64_t start_time;
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249 /* decoding: duration of the stream, in AV_TIME_BASE fractional
250 seconds. */
251 int64_t duration;
fb2758c8 252
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253 char language[4]; /* ISO 639 3-letter language code (empty string if undefined) */
254
fb2758c8 255 /* av_read_frame() support */
7cbaa7ba 256 int need_parsing; ///< 1->full parsing needed, 2->only parse headers dont repack
fb2758c8 257 struct AVCodecParserContext *parser;
6ec87caa 258
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259 int64_t cur_dts;
260 int last_IP_duration;
77405fc8 261 int64_t last_IP_pts;
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262 /* av_seek_frame() support */
263 AVIndexEntry *index_entries; /* only used if the format does not
264 support seeking natively */
265 int nb_index_entries;
266 int index_entries_allocated_size;
115329f1 267
b4b87d48 268 int64_t nb_frames; ///< number of frames in this stream if known or 0
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269
270#define MAX_REORDER_DELAY 4
271 int64_t pts_buffer[MAX_REORDER_DELAY+1];
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272} AVStream;
273
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274#define AVFMTCTX_NOHEADER 0x0001 /* signal that no header is present
275 (streams are added dynamically) */
276
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277#define MAX_STREAMS 20
278
279/* format I/O context */
280typedef struct AVFormatContext {
7fea94ce 281 const AVClass *av_class; /* set by av_alloc_format_context */
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282 /* can only be iformat or oformat, not both at the same time */
283 struct AVInputFormat *iformat;
284 struct AVOutputFormat *oformat;
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285 void *priv_data;
286 ByteIOContext pb;
287 int nb_streams;
288 AVStream *streams[MAX_STREAMS];
289 char filename[1024]; /* input or output filename */
290 /* stream info */
4568325a 291 int64_t timestamp;
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292 char title[512];
293 char author[512];
294 char copyright[512];
295 char comment[512];
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296 char album[512];
297 int year; /* ID3 year, 0 if none */
298 int track; /* track number, 0 if none */
299 char genre[32]; /* ID3 genre */
300
da24c5e3 301 int ctx_flags; /* format specific flags, see AVFMTCTX_xx */
916c80e9 302 /* private data for pts handling (do not modify directly) */
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303 /* This buffer is only needed when packets were already buffered but
304 not decoded, for example to get the codec parameters in mpeg
305 streams */
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306 struct AVPacketList *packet_buffer;
307
308 /* decoding: position of the first frame of the component, in
309 AV_TIME_BASE fractional seconds. NEVER set this value directly:
310 it is deduced from the AVStream values. */
115329f1 311 int64_t start_time;
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312 /* decoding: duration of the stream, in AV_TIME_BASE fractional
313 seconds. NEVER set this value directly: it is deduced from the
314 AVStream values. */
315 int64_t duration;
316 /* decoding: total file size. 0 if unknown */
317 int64_t file_size;
318 /* decoding: total stream bitrate in bit/s, 0 if not
319 available. Never set it directly if the file_size and the
320 duration are known as ffmpeg can compute it automatically. */
321 int bit_rate;
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322
323 /* av_read_frame() support */
324 AVStream *cur_st;
325 const uint8_t *cur_ptr;
326 int cur_len;
327 AVPacket cur_pkt;
328
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329 /* av_seek_frame() support */
330 int64_t data_offset; /* offset of the first packet */
331 int index_built;
115329f1 332
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333 int mux_rate;
334 int packet_size;
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335 int preload;
336 int max_delay;
8108551a 337
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338#define AVFMT_NOOUTPUTLOOP -1
339#define AVFMT_INFINITEOUTPUTLOOP 0
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340 /* number of times to loop output in formats that support it */
341 int loop_output;
115329f1 342
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343 int flags;
344#define AVFMT_FLAG_GENPTS 0x0001 ///< generate pts if missing even if it requires parsing future frames
2c00106c 345#define AVFMT_FLAG_IGNIDX 0x0002 ///< ignore index
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346
347 int loop_input;
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348 /* decoding: size of data to probe; encoding unused */
349 unsigned int probesize;
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350} AVFormatContext;
351
352typedef struct AVPacketList {
353 AVPacket pkt;
354 struct AVPacketList *next;
355} AVPacketList;
356
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357extern AVInputFormat *first_iformat;
358extern AVOutputFormat *first_oformat;
de6d9b64 359
290c5fa6 360/* still image support */
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361struct AVInputImageContext attribute_deprecated;
362typedef struct AVInputImageContext AVInputImageContext attribute_deprecated;
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363
364typedef struct AVImageInfo {
365 enum PixelFormat pix_fmt; /* requested pixel format */
366 int width; /* requested width */
367 int height; /* requested height */
7e2e1abf 368 int interleaved; /* image is interleaved (e.g. interleaved GIF) */
290c5fa6 369 AVPicture pict; /* returned allocated image */
955ab9a4 370} AVImageInfo attribute_deprecated;
290c5fa6 371
3b1a27e0 372/* AVImageFormat.flags field constants */
7e2e1abf 373#define AVIMAGE_INTERLEAVED 0x0001 /* image format support interleaved output */
3b1a27e0 374
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375typedef struct AVImageFormat {
376 const char *name;
377 const char *extensions;
378 /* tell if a given file has a chance of being parsing by this format */
379 int (*img_probe)(AVProbeData *);
380 /* read a whole image. 'alloc_cb' is called when the image size is
381 known so that the caller can allocate the image. If 'allo_cb'
382 returns non zero, then the parsing is aborted. Return '0' if
383 OK. */
115329f1 384 int (*img_read)(ByteIOContext *,
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385 int (*alloc_cb)(void *, AVImageInfo *info), void *);
386 /* write the image */
387 int supported_pixel_formats; /* mask of supported formats for output */
388 int (*img_write)(ByteIOContext *, AVImageInfo *);
3b1a27e0 389 int flags;
290c5fa6 390 struct AVImageFormat *next;
955ab9a4 391} AVImageFormat attribute_deprecated;
290c5fa6 392
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393void av_register_image_format(AVImageFormat *img_fmt) attribute_deprecated;
394AVImageFormat *av_probe_image_format(AVProbeData *pd) attribute_deprecated;
395AVImageFormat *guess_image_format(const char *filename) attribute_deprecated;
5b6d5596 396enum CodecID av_guess_image2_codec(const char *filename);
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397int av_read_image(ByteIOContext *pb, const char *filename,
398 AVImageFormat *fmt,
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399 int (*alloc_cb)(void *, AVImageInfo *info), void *opaque) attribute_deprecated;
400int av_write_image(ByteIOContext *pb, AVImageFormat *fmt, AVImageInfo *img) attribute_deprecated;
290c5fa6 401
955ab9a4 402extern AVImageFormat *first_image_format attribute_deprecated;
290c5fa6 403
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404/* XXX: use automatic init with either ELF sections or C file parser */
405/* modules */
de6d9b64 406
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407#include "rtp.h"
408
409#include "rtsp.h"
410
b9a281db 411/* utils.c */
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412void av_register_input_format(AVInputFormat *format);
413void av_register_output_format(AVOutputFormat *format);
115329f1 414AVOutputFormat *guess_stream_format(const char *short_name,
36ada60c 415 const char *filename, const char *mime_type);
115329f1 416AVOutputFormat *guess_format(const char *short_name,
b9a281db 417 const char *filename, const char *mime_type);
115329f1 418enum CodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
5b6d5596 419 const char *filename, const char *mime_type, enum CodecType type);
de6d9b64 420
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421void av_hex_dump(FILE *f, uint8_t *buf, int size);
422void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload);
de6d9b64 423
94988531 424void av_register_all(void);
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425
426typedef struct FifoBuffer {
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427 uint8_t *buffer;
428 uint8_t *rptr, *wptr, *end;
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429} FifoBuffer;
430
431int fifo_init(FifoBuffer *f, int size);
432void fifo_free(FifoBuffer *f);
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433int fifo_size(FifoBuffer *f, uint8_t *rptr);
434int fifo_read(FifoBuffer *f, uint8_t *buf, int buf_size, uint8_t **rptr_ptr);
a97c1e93 435void fifo_write(FifoBuffer *f, const uint8_t *buf, int size, uint8_t **wptr_ptr);
7000a175 436int put_fifo(ByteIOContext *pb, FifoBuffer *f, int buf_size, uint8_t **rptr_ptr);
568e18b1 437void fifo_realloc(FifoBuffer *f, unsigned int size);
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438static inline uint8_t fifo_peek(FifoBuffer *f, int offs)
439{
440 return f->buffer[(f->rptr - f->buffer + offs) % (f->end - f->buffer)];
441}
442static inline void fifo_drain(FifoBuffer *f, int size)
443{
444 f->rptr += size;
445 if (f->rptr >= f->end)
446 f->rptr = f->buffer + (f->rptr - f->end);
447}
de6d9b64 448
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449/* media file input */
450AVInputFormat *av_find_input_format(const char *short_name);
94988531 451AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
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452int av_open_input_stream(AVFormatContext **ic_ptr,
453 ByteIOContext *pb, const char *filename,
da24c5e3 454 AVInputFormat *fmt, AVFormatParameters *ap);
115329f1 455int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
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456 AVInputFormat *fmt,
457 int buf_size,
458 AVFormatParameters *ap);
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459/* no av_open for output, so applications will need this: */
460AVFormatContext *av_alloc_format_context(void);
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461
462#define AVERROR_UNKNOWN (-1) /* unknown error */
463#define AVERROR_IO (-2) /* i/o error */
464#define AVERROR_NUMEXPECTED (-3) /* number syntax expected in filename */
465#define AVERROR_INVALIDDATA (-4) /* invalid data found */
466#define AVERROR_NOMEM (-5) /* not enough memory */
467#define AVERROR_NOFMT (-6) /* unknown format */
fb2758c8 468#define AVERROR_NOTSUPP (-7) /* operation not supported */
115329f1 469
b9a281db 470int av_find_stream_info(AVFormatContext *ic);
de6d9b64 471int av_read_packet(AVFormatContext *s, AVPacket *pkt);
fb2758c8 472int av_read_frame(AVFormatContext *s, AVPacket *pkt);
3ba1438d 473int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags);
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474int av_read_play(AVFormatContext *s);
475int av_read_pause(AVFormatContext *s);
de6d9b64 476void av_close_input_file(AVFormatContext *s);
b9a281db 477AVStream *av_new_stream(AVFormatContext *s, int id);
9ee91c2f 478void av_set_pts_info(AVStream *s, int pts_wrap_bits,
916c80e9 479 int pts_num, int pts_den);
de6d9b64 480
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481#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward
482#define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes
27a5fe5f 483#define AVSEEK_FLAG_ANY 4 ///< seek to any frame, even non keyframes
3ba1438d 484
b754978a 485int av_find_default_stream_index(AVFormatContext *s);
dc56fc38 486int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags);
3e9245a9 487int av_add_index_entry(AVStream *st,
30a43f2d 488 int64_t pos, int64_t timestamp, int size, int distance, int flags);
3ba1438d 489int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags);
22ffac70 490void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp);
b754978a 491
b9a281db 492/* media file output */
290c5fa6 493int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap);
b9a281db 494int av_write_header(AVFormatContext *s);
e928649b 495int av_write_frame(AVFormatContext *s, AVPacket *pkt);
3c895fc0 496int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
f21c0b4c 497int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush);
e928649b 498
b9a281db 499int av_write_trailer(AVFormatContext *s);
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500
501void dump_format(AVFormatContext *ic,
115329f1 502 int index,
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503 const char *url,
504 int is_output);
505int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
445f1b83 506int parse_frame_rate(int *frame_rate, int *frame_rate_base, const char *arg);
0c1a9eda 507int64_t parse_date(const char *datestr, int duration);
de6d9b64 508
0c1a9eda 509int64_t av_gettime(void);
94988531 510
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511/* ffm specific for ffserver */
512#define FFM_PACKET_SIZE 4096
513offset_t ffm_read_write_index(int fd);
514void ffm_write_write_index(int fd, offset_t pos);
515void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size);
516
517int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
518
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519int av_get_frame_filename(char *buf, int buf_size,
520 const char *path, int number);
521int av_filename_number_test(const char *filename);
96baaa6a 522
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523/* grab specific */
524int video_grab_init(void);
525int audio_init(void);
96baaa6a 526
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527/* DV1394 */
528int dv1394_init(void);
f02be79d 529int dc1394_init(void);
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530
531#ifdef HAVE_AV_CONFIG_H
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532
533#include "os_support.h"
534
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535int strstart(const char *str, const char *val, const char **ptr);
536int stristart(const char *str, const char *val, const char **ptr);
537void pstrcpy(char *buf, int buf_size, const char *str);
538char *pstrcat(char *buf, int buf_size, const char *s);
fb025625 539
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540void __dynarray_add(unsigned long **tab_ptr, int *nb_ptr, unsigned long elem);
541
e4e70d2e 542#ifdef __GNUC__
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543#define dynarray_add(tab, nb_ptr, elem)\
544do {\
545 typeof(tab) _tab = (tab);\
546 typeof(elem) _elem = (elem);\
547 (void)sizeof(**_tab == _elem); /* check that types are compatible */\
548 __dynarray_add((unsigned long **)_tab, nb_ptr, (unsigned long)_elem);\
549} while(0)
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550#else
551#define dynarray_add(tab, nb_ptr, elem)\
552do {\
553 __dynarray_add((unsigned long **)(tab), nb_ptr, (unsigned long)(elem));\
554} while(0)
555#endif
39f472c3 556
f71869a4 557time_t mktimegm(struct tm *tm);
0c9fc6e1 558struct tm *brktimegm(time_t secs, struct tm *tm);
115329f1 559const char *small_strptime(const char *p, const char *fmt,
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560 struct tm *dt);
561
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562struct in_addr;
563int resolve_host(struct in_addr *sin_addr, const char *hostname);
564
565void url_split(char *proto, int proto_size,
6ba5cbc6 566 char *authorization, int authorization_size,
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567 char *hostname, int hostname_size,
568 int *port_ptr,
569 char *path, int path_size,
570 const char *url);
571
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572int match_ext(const char *filename, const char *extensions);
573
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574#endif /* HAVE_AV_CONFIG_H */
575
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576#ifdef __cplusplus
577}
578#endif
579
fb025625 580#endif /* AVFORMAT_H */
f3356e9c 581