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rtmp: Handle FLV packets written in more than one write call

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If the FLV packet is larger than the AVIO buffer, a partial
FLV packet will be flushed to the RTMP protocol.

This commit handles the most common cases of FLV packets
being written in more than one call.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Chiranjeevi Melam 2011-09-18 05:39:53 +02:00 committed by Martin Storsjö
parent 4cc7732386
commit a14c784210
1 changed files with 5 additions and 3 deletions
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8
libavformat/rtmpproto.c
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@ -925,7 +925,7 @@ static int rtmp_write(URLContext *s, const uint8_t *buf, int size)
uint32_t ts;
const uint8_t *buf_temp = buf;
if (size < 11) {
if (!rt->flv_off && size < 11) {
av_log(s, AV_LOG_DEBUG, "FLV packet too small %d\n", size);
return 0;
}
@ -966,20 +966,22 @@ static int rtmp_write(URLContext *s, const uint8_t *buf, int size)
if (rt->flv_size - rt->flv_off > size_temp) {
bytestream_get_buffer(&buf_temp, rt->flv_data + rt->flv_off, size_temp);
rt->flv_off += size_temp;
size_temp = 0;
} else {
bytestream_get_buffer(&buf_temp, rt->flv_data + rt->flv_off, rt->flv_size - rt->flv_off);
size_temp -= rt->flv_size - rt->flv_off;
rt->flv_off += rt->flv_size - rt->flv_off;
}
if (rt->flv_off == rt->flv_size) {
bytestream_get_be32(&buf_temp);
size_temp -= 4;
ff_rtmp_packet_write(rt->stream, &rt->out_pkt, rt->chunk_size, rt->prev_pkt[1]);
ff_rtmp_packet_destroy(&rt->out_pkt);
rt->flv_size = 0;
rt->flv_off = 0;
}
} while (buf_temp - buf < size_temp);
} while (buf_temp - buf < size);
return size;
}