[gstreamer-bugs] [Bug 630256] New: rtph264-pay/depay: doesn't respect timestamps from incomming buffers

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=630256
  GStreamer | gst-plugins-good | 0.10.x

           Summary: rtph264-pay/depay: doesn't respect timestamps from
                    incomming buffers
    Classification: Desktop
           Product: GStreamer
           Version: 0.10.x
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: thijsvermeir at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


I expect that a h264-stream that is passed through a rtppayloader and
rtpdepayloader is still the same stream at the end. But it looks like the
timestamps are not 100% the same. See bellow for an example:

$gst-launch -v filesrc location=../elephants_dream/elephantsdream-480-h264.mkv
! matroskademux ! decodebin ! fakesink | grep chain | head
/GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "chain   ******* <
(194400 bytes, timestamp: 0:00:00.000000000, duration: 0:00:00.458333333,
offset: -1, offset_end: -1, flags: 32) 0x2005700"
/GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "chain   ******* <
(194400 bytes, timestamp: 0:00:00.458000000, duration: 0:00:00.041000000,
offset: -1, offset_end: -1, flags: 256) 0x2005600"
/GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "chain   ******* <
(194400 bytes, timestamp: 0:00:00.500000000, duration: 0:00:00.041000000,
offset: -1, offset_end: -1, flags: 256) 0x2213b90"
/GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "chain   ******* <
(194400 bytes, timestamp: 0:00:00.542000000, duration: 0:00:00.041000000,
offset: -1, offset_end: -1, flags: 256) 0x2213c10"


$gst-launch -v filesrc location=../elephants_dream/elephantsdream-480-h264.mkv
! matroskademux ! rtph264pay ! rtph264depay ! decodebin ! fakesink | grep chain
| head
/GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "chain   ******* <
(194400 bytes, timestamp: 0:00:00.500000000, duration: 0:00:00.040000000,
offset: -1, offset_end: -1, flags: 0) 0x2618520"
/GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "chain   ******* <
(194400 bytes, timestamp: 0:00:00.458000000, duration: 0:00:00.040000000,
offset: -1, offset_end: -1, flags: 256) 0x2618020"
/GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "chain   ******* <
(194400 bytes, timestamp: 0:00:00.500000000, duration: 0:00:00.040000000,
offset: -1, offset_end: -1, flags: 256) 0x2618420"
/GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "chain   ******* <
(194400 bytes, timestamp: 0:00:00.542000000, duration: 0:00:00.040000000,
offset: -1, offset_end: -1, flags: 256) 0x26184a0"

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