+ case AV_CODEC_ID_ILBC:
+ av_strlcatf(buff, size, "a=rtpmap:%d iLBC/%d\r\n"
+ "a=fmtp:%d mode=%d\r\n",
+ payload_type, c->sample_rate,
+ payload_type, c->block_align == 38 ? 20 : 30);
+ break;
+ case AV_CODEC_ID_SPEEX:
+ av_strlcatf(buff, size, "a=rtpmap:%d speex/%d\r\n",
+ payload_type, c->sample_rate);
+ break;
+ case AV_CODEC_ID_OPUS:
+ av_strlcatf(buff, size, "a=rtpmap:%d opus/48000\r\n",
+ payload_type);
+ break;