2012-06-06 00:52, Jason Rhinelander skrev:
I'm seeing the same issue (though I can't distribute the FLAC in
question), using the latest sid version (0.10.31-3).
I did a little more debugging on this; using gstreamer0.10-tools, this
command reproduces the error, with the gstreamer debugging suggesting
a problem:
gst-launch-0.10 --gst-debug-level=2 filesrc
location=10-machinae_supremacy-cryosleep.flac ! flacparse ! flacdec !
pulsesink
Just before the track finishes prematurely, there's this:
0:00:58.040476180 4864 0x148dad0 WARN flacparse
gstflacparse.c:576:gst_flac_parse_frame_header_is_valid:<flacparse0>
Block size is not constant
0:00:58.040721771 4864 0x148dad0 WARN flacdec
gstflacdec.c:419:gst_flac_dec_scan_got_frame:<flacdec0> Variable block
size FLAC unsupported
0:00:58.040971058 4864 0x148dad0 WARN flacparse
gstflacparse.c:576:gst_flac_parse_frame_header_is_valid:<flacparse0>
Block size is not constant
The last one gets repeated a few thousand times, then playback stops.
For my file I get the same errors and result. For both Anton's file
and my file, the FLAC has no errors or warnings when run with flac -t,
and plays perfectly with non-gstreamer players.
I get the same results as you, currently using Ubuntu 12.04 running
gstreamer0.10-plugins-good version 0.10.31-1ubuntu1. Totem restarts at
the beginning of the song but playback stutters after that.
(Note that replacing the final "pulsesink" in the above command with
"fakesink" lets you see the errors without having to wait 58 seconds).
I tried analyzing both FLAC files using ``flac -a filename.flac'', for
both my file and Anton's file. The resulting .ana analysis file shows
that every frame except the very last one has blocksize=4096, so the
error appears at least misleading, perhaps indicating some flac
decoding or parsing error in gstreamer.
I also tried installing the gstreamer1.0 packages, and trying the
above with gst-launch-1.0; exactly the same errors occurred.
After reading Anton's suggestion that he thinks it was working a
couple months ago, I tried installing 0.10.30-2.1, but that still has
the problem (though the "Block size is not constant" error doesn't get
reported--that check was added upstream since then).
Jason Rhinelander
I fired up a few old Ubuntu installations to test this. I could
reproduce the issue in 11.04 using gstreamer0.10-plugins-good version
0.10.28-0ubuntu7, though Totem acted a little differently. This time
there were no stutter after the playback restart. However, in Ubuntu
10.04 using gstreamer0.10-plugins-good version 0.10.21-1ubuntu3, there
were no problems at all. Both Totem and Rhythmbox played past the 0:58 mark.
--
Med vänliga hälsningar / Kindest Regards
Anton Eliasson
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