Ubuntu
gst-ffmpeg package

colorspace conversion causes a pad problem

Bug #2266 reported by Sami Haahtinen
6
Affects Status Importance Assigned to Milestone
gst-ffmpeg (Ubuntu)
Fix Released
Medium
MOTU

Bug Description

The following is reported while attempting to run a pipeline with gst-ffmpeg and certain colorspaces in it.

--Snip--
ressu@denial:~/ > gst-launch --gst-debug-level=1 filesrc location=video0.avi ! spider ! sdlvideosink
RUNNING pipeline ...
ERROR (0x80508d0 - 312954:59:01.626495000) GST_PADS(19411) gstpad.c(2562):gst_pad_set_explicit_caps:<ffdec_mpeg40> failed to negotiate (try_set_caps with "video/x-raw-yuv, width=(int)640, height=(int)480, framerate=(double)30000, format=(fourcc)I420, pixel-aspect-ratio=(fraction)1/1" returned REFUSED)
ERROR: from element /pipeline0/spider0/ffdec_mpeg40: Internal GStreamer error: pad problem. File a bug.
Additional debug info:
gstpad.c(2562): gst_pad_set_explicit_caps: /pipeline0/spider0/ffdec_mpeg40:
failed to negotiate (try_set_caps with "video/x-raw-yuv, width=(int)640, height=(int)480, framerate=(double)30000, format=(fourcc)I420, pixel-aspect-ratio=(fraction)1/1" returned REFUSED)
ERROR (0x80508d0 - 312954:59:01.627381000) ffmpeg(19411) gstffmpegdec.c(653):gst_ffmpegdec_negotiate:<ffdec_mpeg40> Failed to link ffmpeg decoder (mpeg4) to next element
ERROR: from element /pipeline0/spider0/ffdec_mpeg40: Internal GStreamer error: negotiation problem. File a bug.
Additional debug info:
gstffmpegdec.c(653): gst_ffmpegdec_negotiate: /pipeline0/spider0/ffdec_mpeg40:
Failed to link ffmpeg decoder (mpeg4) to next element
ERROR (0x80508d0 - 312954:59:01.677361000) ffmpeg(19411) gstffmpegdec.c(527):gst_ffmpegdec_get_buffer:<ffdec_mpeg40> Failed to link ffmpeg decoder to next element
ERROR: from element /pipeline0/spider0/ffdec_mpeg40: Internal GStreamer error: negotiation problem. File a bug.
Additional debug info:
gstffmpegdec.c(527): gst_ffmpegdec_get_buffer: /pipeline0/spider0/ffdec_mpeg40:
Failed to link ffmpeg decoder to next element
ERROR (0x80508d0 - 312954:59:01.736347000) scheduler(19411) gstoptimalscheduler.c(2800):gst_opt_scheduler_iterate:<optscheduler0> in error state
Execution ended after 3 iterations (sum 399553000 ns, average 133184333 ns, min 206000 ns, max 286594000 ns).

** (gst-launch-0.8:19411): CRITICAL **: gst_ffmpegdec_release_buffer: assertion `buf != NULL' failed
--Snap--

I'm filing this as is because i failed to find any better information about it. The bug appeared after 0.8.4 and was seen in 0.8.5 and 0.8.6 upstream versions.

Also, there is a similar bug in upstream BTS: http://bugzilla.gnome.org/show_bug.cgi?id=315380

Sami Haahtinen (ressu)
Changed in gst-ffmpeg:
assignee: nobody → motu
Revision history for this message
Sami Haahtinen (ressu) wrote :

And as always, something relevant is missing from the original report, The version that this error message was produced was with 0.8.6-0ubuntu2

Revision history for this message
Sami Haahtinen (ressu) wrote :

This doesn't occur in Dapper, i wonder does this still occur in breezy? I'll see if i find a computer with Breezy and check if this still happens with Breezy.

Revision history for this message
Daniel Robitaille (robitaille) wrote :

If this is fixed in Dapper, we'll mark this bug report fixed since the version of gst-ffmpeg in Breezy will not be patched.

Changed in gst-ffmpeg:
status: Unconfirmed → Fix Released
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