static gboolean gst_rtp_L16_pay_setcaps (GstRTPBasePayload * basepayload, GstCaps * caps) { GstRtpL16Pay *rtpL16pay; gboolean res; gchar *params; GstAudioInfo *info; const GstRTPChannelOrder *order; GstRTPBaseAudioPayload *rtpbaseaudiopayload; rtpbaseaudiopayload = GST_RTP_BASE_AUDIO_PAYLOAD (basepayload); rtpL16pay = GST_RTP_L16_PAY (basepayload); info = &rtpL16pay->info; gst_audio_info_init (info); if (!gst_audio_info_from_caps (info, caps)) goto invalid_caps; order = gst_rtp_channels_get_by_pos (info->channels, info->position); rtpL16pay->order = order; gst_rtp_base_payload_set_options (basepayload, "audio", TRUE, "L16", info->rate); params = g_strdup_printf ("%d", info->channels); if (!order && info->channels > 2) { GST_ELEMENT_WARNING (rtpL16pay, STREAM, DECODE, (NULL), ("Unknown channel order for %d channels", info->channels)); } if (order && order->name) { res = gst_rtp_base_payload_set_outcaps (basepayload, "encoding-params", G_TYPE_STRING, params, "channels", G_TYPE_INT, info->channels, "channel-order", G_TYPE_STRING, order->name, NULL); } else { res = gst_rtp_base_payload_set_outcaps (basepayload, "encoding-params", G_TYPE_STRING, params, "channels", G_TYPE_INT, info->channels, NULL); } g_free (params); /* octet-per-sample is 2 * channels for L16 */ gst_rtp_base_audio_payload_set_sample_options (rtpbaseaudiopayload, 2 * info->channels); return res; /* ERRORS */ invalid_caps: { GST_DEBUG_OBJECT (rtpL16pay, "invalid caps"); return FALSE; } }
static void gst_rtp_pcmu_pay_init (GstRtpPcmuPay * rtppcmupay) { GstRTPBaseAudioPayload *rtpbaseaudiopayload; rtpbaseaudiopayload = GST_RTP_BASE_AUDIO_PAYLOAD (rtppcmupay); GST_RTP_BASE_PAYLOAD (rtppcmupay)->clock_rate = 8000; /* tell rtpbaseaudiopayload that this is a sample based codec */ gst_rtp_base_audio_payload_set_sample_based (rtpbaseaudiopayload); /* octet-per-sample is 1 for PCM */ gst_rtp_base_audio_payload_set_sample_options (rtpbaseaudiopayload, 1); }