int ff_rtp_get_payload_type(AVFormatContext *fmt, AVCodecContext *codec)
{
int i;
AVOutputFormat *ofmt = fmt ? fmt->oformat : NULL;
/* Was the payload type already specified for the RTP muxer? */
if (ofmt && ofmt->priv_class) {
int64_t payload_type;
if (av_opt_get_int(fmt->priv_data, "payload_type", 0, &payload_type) >= 0 &&
payload_type >= 0)
return (int)payload_type;
}
/* static payload type */
for (i = 0; AVRtpPayloadTypes[i].pt >= 0; ++i)
if (AVRtpPayloadTypes[i].codec_id == codec->codec_id) {
if (codec->codec_id == CODEC_ID_H263 && (!fmt ||
!fmt->oformat->priv_class ||
!av_opt_flag_is_set(fmt->priv_data, "rtpflags", "rfc2190")))
continue;
if (codec->codec_id == CODEC_ID_PCM_S16BE)
if (codec->channels != AVRtpPayloadTypes[i].audio_channels)
continue;
return AVRtpPayloadTypes[i].pt;
}
/* dynamic payload type */
return RTP_PT_PRIVATE + (codec->codec_type == AVMEDIA_TYPE_AUDIO);
}
int ff_rtp_get_payload_type(AVFormatContext *fmt,
AVCodecContext *codec, int idx)
{
int i;
AVOutputFormat *ofmt = fmt ? fmt->oformat : NULL;
/* Was the payload type already specified for the RTP muxer? */
if (ofmt && ofmt->priv_class && fmt->priv_data) {
int64_t payload_type;
if (av_opt_get_int(fmt->priv_data, "payload_type", 0, &payload_type) >= 0 &&
payload_type >= 0)
return (int)payload_type;
}
/* static payload type */
for (i = 0; rtp_payload_types[i].pt >= 0; ++i)
if (rtp_payload_types[i].codec_id == codec->codec_id) {
if (codec->codec_id == AV_CODEC_ID_H263 && (!fmt || !fmt->oformat ||
!fmt->oformat->priv_class || !fmt->priv_data ||
!av_opt_flag_is_set(fmt->priv_data, "rtpflags", "rfc2190")))
continue;
/* G722 has 8000 as nominal rate even if the sample rate is 16000,
* see section 4.5.2 in RFC 3551. */
if (codec->codec_id == AV_CODEC_ID_ADPCM_G722 &&
codec->sample_rate == 16000 && codec->channels == 1)
return rtp_payload_types[i].pt;
if (codec->codec_type == AVMEDIA_TYPE_AUDIO &&
((rtp_payload_types[i].clock_rate > 0 &&
codec->sample_rate != rtp_payload_types[i].clock_rate) ||
(rtp_payload_types[i].audio_channels > 0 &&
codec->channels != rtp_payload_types[i].audio_channels)))
continue;
return rtp_payload_types[i].pt;
}
if (idx < 0)
idx = codec->codec_type == AVMEDIA_TYPE_AUDIO;
/* dynamic payload type */
return RTP_PT_PRIVATE + idx;
}
