/*
* RTP packetization for MPEG video
* Copyright (c) 2002 Fabrice Bellard.
+ * Copyright (c) 2007 Luca Abeni.
*
* This file is part of FFmpeg.
*
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
+#include "libavcodec/mpegvideo.h"
#include "avformat.h"
#include "rtp_internal.h"
-#include "mpegvideo.h"
-
/* NOTE: a single frame must be passed with sequence header if
needed. XXX: use slices. */
void ff_rtp_send_mpegvideo(AVFormatContext *s1, const uint8_t *buf1, int size)
{
RTPDemuxContext *s = s1->priv_data;
- AVStream *st = s1->streams[0];
int len, h, max_packet_size;
uint8_t *q;
- int begin_of_slice, end_of_slice;
+ int begin_of_slice, end_of_slice, frame_type, temporal_reference;
max_packet_size = s->max_payload_size;
begin_of_slice = 1;
end_of_slice = 0;
+ frame_type = 0;
+ temporal_reference = 0;
while (size > 0) {
+ int begin_of_sequence;
+
+ begin_of_sequence = 0;
len = max_packet_size - 4;
if (len >= size) {
r = ff_find_start_code(r1, buf1 + size, &start_code);
if((start_code & 0xFFFFFF00) == 0x100) {
/* New start code found */
+ if (start_code == 0x100) {
+ frame_type = (r[1] & 0x38) >> 3;
+ temporal_reference = (int)r[0] << 2 | r[1] >> 6;
+ }
+ if (start_code == 0x1B8) {
+ begin_of_sequence = 1;
+ }
+
if (r - buf1 < len) {
/* The current slice fits in the packet */
if (begin_of_slice == 0) {
}
r1 = r;
} else {
- if (r - r1 < max_packet_size) {
+ if (r - r1 < max_packet_size - 4) {
len = r1 - buf1 - 4;
end_of_slice = 1;
}
}
h = 0;
+ h |= temporal_reference << 16;
+ h |= begin_of_sequence << 13;
h |= begin_of_slice << 12;
h |= end_of_slice << 11;
+ h |= frame_type << 8;
q = s->buf;
*q++ = h >> 24;
q += len;
/* 90 KHz time stamp */
- s->timestamp = s->base_timestamp +
- av_rescale((int64_t)s->cur_timestamp * st->codec->time_base.num, 90000, st->codec->time_base.den); //FIXME pass timestamps
+ s->timestamp = s->cur_timestamp;
ff_rtp_send_data(s1, s->buf, q - s->buf, (len == size));
buf1 += len;
begin_of_slice = end_of_slice;
end_of_slice = 0;
}
- s->cur_timestamp++;
}