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sdp: add support for H.261 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 1c4c78ee40)

Conflicts:

	libavformat/version.h
This commit is contained in:
Thomas Volkert 2014-10-04 00:17:01 +02:00 committed by Michael Niedermayer
parent 506368f563
commit a16558e122
1 changed files with 13 additions and 0 deletions
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13
libavformat/sdp.c
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@ -414,6 +414,19 @@ static char *sdp_write_media_attributes(char *buff, int size, AVCodecContext *c,
payload_type, mode, config ? config : "");
break;
}
case AV_CODEC_ID_H261:
{
const char *pic_fmt = NULL;
/* only QCIF and CIF are specified as supported in RFC 4587 */
if (c->width == 176 && c->height == 144)
pic_fmt = "QCIF=1";
if (c->width == 352 && c->height == 288)
pic_fmt = "CIF=1";
av_strlcatf(buff, size, "a=rtpmap:%d H261/90000\r\n", payload_type);
if (pic_fmt)
av_strlcatf(buff, size, "a=fmtp:%d %s\r\n", payload_type, pic_fmt);
break;
}
case AV_CODEC_ID_H263:
case AV_CODEC_ID_H263P:
/* a=framesize is required by 3GPP TS 26.234 (PSS). It