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Correct timestamps inside FLV data received by RTMP. 

Patch by Sergiy (gmail(piratfm))

Originally committed as revision 21161 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Sergiy 2010-01-12 07:10:47 +00:00 committed by Kostya Shishkov
parent e2ee11e868
commit 56e29bf2c9
1 changed files with 22 additions and 2 deletions
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24
libavformat/rtmpproto.c
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@ -651,6 +651,10 @@ static int get_packet(URLContext *s, int for_header)
{
RTMPContext *rt = s->priv_data;
int ret;
uint8_t *p;
const uint8_t *next;
uint32_t data_size;
uint32_t ts, cts, pts=0;
if (rt->state == STATE_STOPPED)
return AVERROR_EOF;
@ -685,8 +689,7 @@ static int get_packet(URLContext *s, int for_header)
}
if (rpkt.type == RTMP_PT_VIDEO || rpkt.type == RTMP_PT_AUDIO ||
(rpkt.type == RTMP_PT_NOTIFY && !memcmp("\002\000\012onMetaData", rpkt.data, 13))) {
uint8_t *p;
uint32_t ts = rpkt.timestamp;
ts = rpkt.timestamp;
// generate packet header and put data into buffer for FLV demuxer
rt->flv_off = 0;
@ -706,6 +709,23 @@ static int get_packet(URLContext *s, int for_header)
rt->flv_off = 0;
rt->flv_size = rpkt.data_size;
rt->flv_data = av_realloc(rt->flv_data, rt->flv_size);
/* rewrite timestamps */
next = rpkt.data;
ts = rpkt.timestamp;
while (next - rpkt.data < rpkt.data_size - 11) {
next++;
data_size = bytestream_get_be24(&next);
p=next;
cts = bytestream_get_be24(&next);
cts |= bytestream_get_byte(&next);
if (pts==0)
pts=cts;
ts += cts - pts;
pts = cts;
bytestream_put_be24(&p, ts);
bytestream_put_byte(&p, ts >> 24);
next += data_size + 3 + 4;
}
memcpy(rt->flv_data, rpkt.data, rpkt.data_size);
ff_rtmp_packet_destroy(&rpkt);
return 0;