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Merge commit '65e053271a98f7acf3ef6b412998cfcb44a8eef8'

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* commit '65e053271a98f7acf3ef6b412998cfcb44a8eef8':
  rtpenc_vp8: Include the picture number in VP8 packets

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-12-17 13:46:46 +01:00
commit 021b3497e1
2 changed files with 15 additions and 7 deletions
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2
libavformat/rtpenc.h
View File

@ -59,6 +59,8 @@ struct RTPMuxContext {
int nal_length_size;
int flags;
unsigned int frame_count;
};
typedef struct RTPMuxContext RTPMuxContext;

20
libavformat/rtpenc_vp8.c
View File

@ -26,24 +26,30 @@
void ff_rtp_send_vp8(AVFormatContext *s1, const uint8_t *buf, int size)
{
RTPMuxContext *s = s1->priv_data;
int len, max_packet_size;
int len, max_packet_size, header_size;
s->buf_ptr = s->buf;
s->timestamp = s->cur_timestamp;
max_packet_size = s->max_payload_size - 1; // minus one for header byte
// no extended control bits, reference frame, start of partition,
// extended control bit set, reference frame, start of partition,
// partition id 0
*s->buf_ptr++ = 0x10;
*s->buf_ptr++ = 0x90;
*s->buf_ptr++ = 0x80; // Picture id present
*s->buf_ptr++ = s->frame_count++ & 0x7f;
// Calculate the number of remaining bytes
header_size = s->buf_ptr - s->buf;
max_packet_size = s->max_payload_size - header_size;
while (size > 0) {
len = FFMIN(size, max_packet_size);
memcpy(s->buf_ptr, buf, len);
ff_rtp_send_data(s1, s->buf, len+1, size == len); // marker bit is last packet in frame
// marker bit is last packet in frame
ff_rtp_send_data(s1, s->buf, len + header_size, size == len);
size -= len;
buf += len;
s->buf_ptr = s->buf;
*s->buf_ptr++ = 0; // payload descriptor
// Clear the partition start bit, keep the rest of the header untouched
s->buf[0] &= ~0x10;
}
}