https://bugzilla.wikimedia.org/show_bug.cgi?id=29184
Web browser: ---
Bug #: 29184
Summary: Mysterious failure in 720p WebM transcode
Product: MediaWiki extensions
Version: any
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: TimedMediaHandler
AssignedTo: [email protected]
ReportedBy: [email protected]
Blocks: 27699
Classification: Unclassified
Transcoding a local copy of the 1920x1088 test file from
http://prototype.wikimedia.org/tmh/images/b/b2/File-Arborophila_brunneopectus_pair_feeding_-_Kaeng_Krachan.ogv
Ubuntu 11.04 x86_64 system with ffmpeg stock 0.6.2-4:0.6.2-1ubuntu1.
The '480p' WebM file renders fine, but the '720p' WebM version fails. The
.queue.webm file got written out to about 37 of the 42 seconds of input data,
and is missing index etc.
The recorded 'error' looks like regular output:
*************************** 5. row ***************************
transcode_id: 20
transcode_image_name:
File-Arborophila_brunneopectus_pair_feeding_-_Kaeng_Krachan.ogv
transcode_key: 480_900kbs.webm
transcode_error:
transcode_time_addjob: 2011-05-28 00:03:06
transcode_time_startwork: 2011-05-28 00:09:05
transcode_time_success: 2011-05-28 00:10:48
transcode_time_error: NULL
transcode_final_bitrate: 888048
*************************** 6. row ***************************
transcode_id: 21
transcode_image_name:
File-Arborophila_brunneopectus_pair_feeding_-_Kaeng_Krachan.ogv
transcode_key: 720_VBR.webm
transcode_error: FFmpeg version 0.6.2-4:0.6.2-1ubuntu1, Copyright (c)
2000-2010 the Libav developers
built on Mar 22 2011 15:55:04 with gcc 4.5.2
configuration: --extra-version=4:0.6.2-1ubuntu1 --prefix=/usr
--enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib
--enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora
--enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx
--disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl
--enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394
--enable-shared --disable-static
libavutil 50.15. 1 / 50.15. 1
libavcodec 52.72. 2 / 52.72. 2
libavformat 52.64. 2 / 52.64. 2
libavdevice 52. 2. 0 / 52. 2. 0
libavfilter 1.19. 0 / 1.19. 0
libswscale 0.11. 0 / 0.11. 0
libpostproc 51. 2. 0 / 51. 2. 0
Input #0, ogg, from
'/var/www/trunk/images/b/b2/File-Arborophila_brunneopectus_pair_feeding_-_Kaeng_Krachan.ogv':
Duration: 00:00:42.20, start: 0.000000, bitrate: 12632 kb/s
Stream #0.0: Data: skeleton
Stream #0.1: Video: theora, yuv420p, 1920x1088, 25 fps, 25 tbr, 25 tbn, 25
tbc
Stream #0.2: Audio: vorbis, 48000 Hz, stereo, s16, 192 kb/s
Metadata:
ENCODER : ffmpeg2theora-0.26+svn16924
SOURCE_OSHASH : cd67a9923275c17c
[libvpx @ 0x15ae000]v0.9.6
Output #0, webm, to
'/var/www/trunk/images/thumb/b/b2/File-Arborophila_brunneopectus_pair_feeding_-_Kaeng_Krachan.ogv/File-Arborophila_brunneopectus_pair_feeding_-_Kaeng_Krachan.ogv.720_VBR.webm.queue.webm':
Metadata:
encoder : Lavf52.64.2
Stream #0.0: Video: libvpx, yuv420p, 1280x725, q=19-19, 200 kb/s, 1k tbn,
25 tbc
Stream #0.1: Audio: libvorbis, 48000 Hz, stereo, s16, 64 kb/s
Metadata:
ENCODER : ffmpeg2theora-0.26+svn16924
SOURCE_OSHASH : cd67a9923275c17c
Stream mapping:
Stream #0.1 -> #0.0
Stream #0.2 -> #0.1
Press [q] to stop encoding
frame= 945 fps= 10 q=0.0 size= 22121kB time=37.59 bitrate=4821.1kbits/s
transcode_time_addjob: 2011-05-28 00:03:06
transcode_time_startwork: 2011-05-28 00:07:31
transcode_time_success: NULL
transcode_time_error: 2011-05-28 00:09:05
transcode_final_bitrate: 0
Using these shell memory settings to override the defaults:
$wgMaxShellMemory = 1024000;
$wgMaxShellFileSize = 1024000;
Possibly these are not enough and ffmpeg is dying; README recommends 102400*64
for $wgMaxShellMemory, though there are no recommendations on the wiki page.
Is there any way we can detect a failed process specifically?
--
Configure bugmail: https://bugzilla.wikimedia.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.
_______________________________________________
Wikibugs-l mailing list
[email protected]
https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
