mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
c9b10cc4db
Tested to work with the gstreamer depacketizer. Signed-off-by: Martin Storsjö <martin@martin.st>
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/*
|
|
* RTP VP8 Packetizer
|
|
* Copyright (c) 2010 Josh Allmann
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* Libav is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "rtpenc.h"
|
|
|
|
/* Based on a draft spec for VP8 RTP.
|
|
* ( http://tools.ietf.org/html/draft-ietf-payload-vp8-05 ) */
|
|
void ff_rtp_send_vp8(AVFormatContext *s1, const uint8_t *buf, int size)
|
|
{
|
|
RTPMuxContext *s = s1->priv_data;
|
|
int len, max_packet_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,
|
|
// partition id 0
|
|
*s->buf_ptr++ = 0x10;
|
|
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
|
|
|
|
size -= len;
|
|
buf += len;
|
|
s->buf_ptr = s->buf;
|
|
*s->buf_ptr++ = 0; // payload descriptor
|
|
}
|
|
}
|