35 av_first_parser = parser;
47 for(parser = av_first_parser; parser !=
NULL; parser = parser->
next) {
112 uint8_t **poutbuf,
int *poutbuf_size,
113 const uint8_t *buf,
int buf_size,
114 int64_t pts, int64_t dts,
128 memset(dummy_buf, 0,
sizeof(dummy_buf));
151 index = s->
parser->
parser_parse(s, avctx, (
const uint8_t **)poutbuf, poutbuf_size, buf, buf_size);
175 uint8_t **poutbuf,
int *poutbuf_size,
176 const uint8_t *buf,
int buf_size,
int keyframe){
187 *poutbuf= (uint8_t *) buf;
188 *poutbuf_size= buf_size;
225 av_dlog(
NULL,
"overread %d, state:%X next:%d index:%d o_index:%d\n",
227 av_dlog(
NULL,
"%X %X %X %X\n", (*buf)[0], (*buf)[1], (*buf)[2], (*buf)[3]);
250 pc->
index += *buf_size;
272 for(;next < 0; next++){
279 av_dlog(
NULL,
"overread %d, state:%X next:%d index:%d o_index:%d\n",
281 av_dlog(
NULL,
"%X %X %X %X\n", (*buf)[0], (*buf)[1],(*buf)[2],(*buf)[3]);
305 const uint8_t *buf,
int buf_size)
310 for(i=0; i<buf_size; i++){
311 state= (state<<8) | buf[i];
312 if(state == 0x1B3 || state == 0x1B6)
int(* parser_init)(AVCodecParserContext *s)
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
#define CODEC_FLAG2_LOCAL_HEADER
Place global headers at every keyframe instead of in extradata.
int av_parser_change(AVCodecParserContext *s, AVCodecContext *avctx, uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int keyframe)
int64_t next_frame_offset
AVCodecParser * av_parser_next(AVCodecParser *p)
int64_t cur_frame_pos[AV_PARSER_PTS_NB]
Position of the packet in file.
int dts_ref_dts_delta
Offset of the current timestamp against last timestamp sync point in units of AVCodecContext.time_base.
int ff_mpeg4video_split(AVCodecContext *avctx, const uint8_t *buf, int buf_size)
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
void ff_parse1_close(AVCodecParserContext *s)
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
void av_parser_close(AVCodecParserContext *s)
struct AVCodecParser * next
int(* parser_parse)(AVCodecParserContext *s, AVCodecContext *avctx, const uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size)
void av_register_codec_parser(AVCodecParser *parser)
void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove)
Fetch timestamps for a specific byte within the current access unit.
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
int64_t pos
Byte position of currently parsed frame in stream.
struct AVCodecParser * parser
int ff_combine_frame(ParseContext *pc, int next, const uint8_t **buf, int *buf_size)
Combine the (truncated) bitstream to a complete frame.
int overread_index
the index into ParseContext.buffer of the overread bytes
int64_t cur_frame_dts[AV_PARSER_PTS_NB]
void ff_parse_close(AVCodecParserContext *s)
int overread
the number of bytes which where irreversibly read from the next frame
void(* parser_close)(AVCodecParserContext *s)
int64_t offset
byte offset from starting packet start
int64_t convergence_duration
Time difference in stream time base units from the pts of this packet to the point at which the outpu...
int64_t cur_frame_end[AV_PARSER_PTS_NB]
int64_t cur_frame_pts[AV_PARSER_PTS_NB]
#define av_dlog(pctx,...)
av_dlog macros Useful to print debug messages that shouldn't get compiled in normally.
int64_t last_pos
Previous frame byte position.
int pts_dts_delta
Presentation delay of current frame in units of AVCodecContext.time_base.
main external API structure.
int cur_frame_start_index
#define PARSER_FLAG_FETCHED_OFFSET
Set if the parser has a valid file offset.
uint32_t state
contains the last few bytes in MSB order
void * av_malloc(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
#define CODEC_FLAG_GLOBAL_HEADER
Place global headers in extradata instead of every keyframe.
uint64_t state64
contains the last 8 bytes in MSB order
#define FF_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
static AVCodecParser * av_first_parser
int(* split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size)
int64_t cur_frame_offset[AV_PARSER_PTS_NB]
AVCodecParserContext * av_parser_init(int codec_id)
void * av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
Reallocate the given block if it is not large enough, otherwise do nothing.
struct MpegEncContext * enc
int av_parser_parse2(AVCodecParserContext *s, AVCodecContext *avctx, uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int64_t pts, int64_t dts, int64_t pos)
Parse a packet.
int key_frame
Set by parser to 1 for key frames and 0 for non-key frames.
int dts_sync_point
Synchronization point for start of timestamp generation.
#define AV_NOPTS_VALUE
Undefined timestamp value.