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rtph264pay: Fix reading timestamps from adapter

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The code was reading the timestamp from the adapter before pushing the
new buffer into it. As a side effect, if the adapter was empty, we'd end
up using an older timestamp. In alignment=au, it means that all
timestamp was likely one frame in the past, while in alignment=nal, with
multiple slices per frame, the first slice would have the timestamp of
the previous one.
This commit is contained in:
Nicolas Dufresne 2018-09-25 11:49:52 -04:00
parent 4add820cce
commit 1f72131781
1 changed files with 8 additions and 8 deletions
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16
gst/rtp/gstrtph264pay.c
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@ -820,7 +820,9 @@ gst_rtp_h264_pay_payload_nal (GstRTPBasePayload * basepayload,
break;
}
GST_DEBUG_OBJECT (rtph264pay, "Processing Buffer with NAL TYPE=%d", nalType);
GST_DEBUG_OBJECT (rtph264pay,
"Processing Buffer with NAL TYPE=%d %" GST_TIME_FORMAT,
nalType, GST_TIME_ARGS (pts));
/* should set src caps before pushing stuff,
* and if we did not see enough SPS/PPS, that may not be the case */
@ -1046,8 +1048,6 @@ gst_rtp_h264_pay_handle_buffer (GstRTPBasePayload * basepayload,
rtph264pay->discont = GST_BUFFER_IS_DISCONT (buffer);
GST_DEBUG_OBJECT (basepayload, "got %" G_GSIZE_FORMAT " bytes", size);
} else {
dts = gst_adapter_prev_dts (rtph264pay->adapter, NULL);
pts = gst_adapter_prev_pts (rtph264pay->adapter, NULL);
if (buffer) {
if (!GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT)) {
if (gst_adapter_available (rtph264pay->adapter) == 0)
@ -1069,13 +1069,13 @@ gst_rtp_h264_pay_handle_buffer (GstRTPBasePayload * basepayload,
delayed_discont = TRUE;
}
if (!GST_CLOCK_TIME_IS_VALID (dts))
dts = GST_BUFFER_DTS (buffer);
if (!GST_CLOCK_TIME_IS_VALID (pts))
pts = GST_BUFFER_PTS (buffer);
gst_adapter_push (rtph264pay->adapter, buffer);
}
/* We want to use the first TS used to construct the following NAL */
dts = gst_adapter_prev_dts (rtph264pay->adapter, NULL);
pts = gst_adapter_prev_pts (rtph264pay->adapter, NULL);
size = gst_adapter_available (rtph264pay->adapter);
/* Nothing to do here if the adapter is empty, e.g. on EOS */
if (size == 0)