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experimental mpeg4 video support (currently no slice/timestamp handling)

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Originally committed as revision 1264 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard 2002-11-20 20:53:32 +00:00
parent 50d5d129b4
commit 65e70450de
1 changed files with 31 additions and 2 deletions
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33
libav/rtp.c
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@ -85,6 +85,7 @@ enum RTPPayloadType {
RTP_PT_MPEGVIDEO = 32,
RTP_PT_MPEG2TS = 33,
RTP_PT_H263 = 34, /* old H263 encapsulation */
RTP_PT_PRIVATE = 96,
};
typedef struct RTPContext {
@ -358,7 +359,7 @@ static int rtp_write_header(AVFormatContext *s1)
payload_type = rtp_get_payload_type(&st->codec);
if (payload_type < 0)
return -1;
payload_type = RTP_PT_PRIVATE; /* private payload type */
s->payload_type = payload_type;
s->base_timestamp = random();
@ -570,6 +571,32 @@ static void rtp_send_mpegvideo(AVFormatContext *s1,
s->cur_timestamp++;
}
static void rtp_send_raw(AVFormatContext *s1,
UINT8 *buf1, int size)
{
RTPContext *s = s1->priv_data;
AVStream *st = s1->streams[0];
int len, max_packet_size;
max_packet_size = s->max_payload_size;
while (size > 0) {
len = max_packet_size;
if (len > size)
len = size;
/* 90 KHz time stamp */
/* XXX: overflow */
s->timestamp = s->base_timestamp +
(s->cur_timestamp * 90000LL * FRAME_RATE_BASE) / st->codec.frame_rate;
rtp_send_data(s1, buf1, len);
buf1 += len;
size -= len;
}
s->cur_timestamp++;
}
/* write an RTP packet. 'buf1' must contain a single specific frame. */
static int rtp_write_packet(AVFormatContext *s1, int stream_index,
UINT8 *buf1, int size, int force_pts)
@ -615,7 +642,9 @@ static int rtp_write_packet(AVFormatContext *s1, int stream_index,
rtp_send_mpegvideo(s1, buf1, size);
break;
default:
return AVERROR_IO;
/* better than nothing : send the codec raw data */
rtp_send_raw(s1, buf1, size);
break;
}
return 0;
}