h264parse: Add the missing timestamp when splitting a frame.

When splitting a frame, the gst_buffer_copy_region() does not copy
the timestamp correctly for sub frames when the offset is not 0.
We still need those timestamps for each output sub frame.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3448>

diff --git a/subprojects/gst-plugins-bad/gst/videoparsers/gsth264parse.c b/subprojects/gst-plugins-bad/gst/videoparsers/gsth264parse.c
index fee08c4..2ecc7fa 100644 (file)
--- a/subprojects/gst-plugins-bad/gst/videoparsers/gsth264parse.c
+++ b/subprojects/gst-plugins-bad/gst/videoparsers/gsth264parse.c
@@ -1275,6 +1275,10 @@ gst_h264_parse_handle_frame_packetized (GstBaseParse * parse,
       tmp_frame.overhead = frame->overhead;
       tmp_frame.buffer = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL,
           nalu.offset, nalu.size);
+      /* Don't lose timestamp when offset is not 0. */
+      GST_BUFFER_PTS (tmp_frame.buffer) = GST_BUFFER_PTS (buffer);
+      GST_BUFFER_DTS (tmp_frame.buffer) = GST_BUFFER_DTS (buffer);
+      GST_BUFFER_DURATION (tmp_frame.buffer) = GST_BUFFER_DURATION (buffer);
 
       /* Set marker on last packet */
       if (nl + nalu.size == left) {