[Bug 675359] New: Frame-based multi threaded decoding is broken with gst-ffmpegdec

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=675359
  GStreamer | gst-ffmpeg | 0.11.x

           Summary: Frame-based multi threaded decoding is broken with
                    gst-ffmpegdec
    Classification: Platform
           Product: GStreamer
           Version: 0.11.x
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-ffmpeg
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: matej.knopp at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=213361)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=213361)
Patch

This has been broken for quite some time. The problem is empty buffer being
sent to the decoder on drain before any other data has been sent. This causes
the first decoding thread not being initialized properly and the first actual
frame being decoded in second thread. 

With check to prevent drain when no data has been sent yet the decoding works.
The patch also enables frame based decoding by default, if this is not
desirable I can disable it. The decoding does introduce latency of 1 frame per
thread, but the performance benefits are significant.

-- 
Configure bugmail: https://bugzilla.gnome.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the QA contact for the bug.
You are the assignee for the bug.