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keyframe detection support by rgselk <rgselknospam@yahoo.com>

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@11596 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
alex 2003-12-08 21:57:12 +00:00
parent c7f47f1837
commit a49337aaa8
1 changed files with 14 additions and 3 deletions
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17
libmpdemux/realrtsp/real.c
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@ -593,9 +593,11 @@ int real_get_rdt_chunk(rtsp_t *rtsp_session, char *buffer) {
uint8_t header[8];
rmff_pheader_t ph;
int size;
int flags1;
int flags1, flags2;
int unknown1;
uint32_t ts;
static uint32_t prev_ts = -1;
static int prev_stream_number = -1;
n=rtsp_read_data(rtsp_session, header, 8);
if (n<8) return 0;
@ -625,13 +627,15 @@ int real_get_rdt_chunk(rtsp_t *rtsp_session, char *buffer) {
flags1=header[4];
size-=9;
}
flags2=header[7];
// header[5..6] == frame number in stream
unknown1=(header[5]<<12)+(header[6]<<8)+(header[7]);
n=rtsp_read_data(rtsp_session, header, 6);
if (n<6) return 0;
ts=BE_32(header);
#ifdef LOG
printf("ts: %u size: %u, flags: 0x%02x, unknown values: %u 0x%02x 0x%02x\n",
printf("ts: %u, size: %u, flags: 0x%02x, unknown values: 0x%06x 0x%02x 0x%02x\n",
ts, size, flags1, unknown1, header[4], header[5]);
#endif
size+=2;
@ -641,7 +645,14 @@ int real_get_rdt_chunk(rtsp_t *rtsp_session, char *buffer) {
ph.stream_number=(flags1>>1)&1;
ph.timestamp=ts;
ph.reserved=0;
ph.flags=0; /* TODO: determine keyframe flag and insert here? */
if ((flags2&1) == 0 && (prev_ts != ts || prev_stream_number != ph.stream_number))
{
prev_ts = ts;
prev_stream_number = ph.stream_number;
ph.flags=2;
}
else
ph.flags=0;
rmff_dump_pheader(&ph, buffer);
size-=12;
n=rtsp_read_data(rtsp_session, buffer+12, size);