rtpdtmfsrc: Put the inter digit interval at the end, not at the start
The reason is to let rtpdtmfmux drop buffers during the inter digit interval, this way, there will be more silence around the DTMF tones so IVFs will have a better chance recognizing them.
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@ -514,8 +514,7 @@ gst_rtp_dtmf_prepare_timestamps (GstRTPDTMFSrc * dtmfsrc)
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if (clock == NULL)
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return FALSE;
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dtmfsrc->timestamp = gst_clock_get_time (clock)
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+ (MIN_INTER_DIGIT_INTERVAL * GST_MSECOND)
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dtmfsrc->start_timestamp = gst_clock_get_time (clock)
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- gst_element_get_base_time (GST_ELEMENT (dtmfsrc));
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dtmfsrc->start_timestamp = dtmfsrc->timestamp;
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gst_object_unref (clock);
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@ -591,7 +590,6 @@ gst_rtp_dtmf_prepare_buffer_data (GstRTPDTMFSrc * dtmfsrc, GstBuffer * buf)
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GST_BUFFER_DURATION (buf) = dtmfsrc->ptime * GST_MSECOND;
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GST_BUFFER_TIMESTAMP (buf) = dtmfsrc->timestamp;
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dtmfsrc->timestamp += GST_BUFFER_DURATION (buf);
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payload = (GstRTPDTMFPayload *) gst_rtp_buffer_get_payload (buf);
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@ -606,6 +604,18 @@ gst_rtp_dtmf_prepare_buffer_data (GstRTPDTMFSrc * dtmfsrc, GstBuffer * buf)
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if (dtmfsrc->redundancy_count == 0)
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dtmfsrc->payload->duration += dtmfsrc->ptime * dtmfsrc->clock_rate / 1000;
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if (dtmfsrc->redundancy_count == 0 && dtmfsrc->last_packet) {
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GstClockTime inter_digit_interval = MIN_INTER_DIGIT_INTERVAL;
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if (inter_digit_interval % dtmfsrc->ptime != 0)
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inter_digit_interval += dtmfsrc->ptime -
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(MIN_INTER_DIGIT_INTERVAL % dtmfsrc->ptime);
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GST_BUFFER_DURATION (buf) += inter_digit_interval * GST_MSECOND;
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}
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if (GST_CLOCK_TIME_IS_VALID (dtmfsrc->timestamp))
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dtmfsrc->timestamp += GST_BUFFER_DURATION (buf);
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}
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static GstBuffer *
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