Last modified: 2012-11-01 17:21:08 UTC
Visit http://test2.wikipedia.org/wiki/File:Citygroup_Center,_San_Francisco.ogv Expected: see a still image from the video Actual: no image; broken thumb. It appears to be trying to pull in this image: http://upload.wikimedia.org/wikipedia/test2/thumb/9/93/Citygroup_Center%2C_San_Francisco.ogv/512px--Citygroup_Center%2C_San_Francisco.ogv.jpg
Error page for search purposes: Error generating thumbnail Error creating thumbnail: avconv version 0.8.3-4:0.8.3-0ubuntu0.12.04.1, Copyright (c) 2000-2012 the Libav developers built on Jun 12 2012 16:52:09 with gcc 4.6.3 [ogg @ 0x95c7a0] Unknown skeleton version 4.0 [ogg @ 0x95c7a0] max_analyze_duration reached Input #0, ogg, from '/tmp/localcopy_109b1d186f60-1.ogv': Duration: 00:01:13.85, start: 0.000000, bitrate: 691 kb/s Stream #0.0: Data: skeleton Stream #0.1: Video: theora, yuv420p, 512x288 [PAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc Stream #0.2: Audio: vorbis, 48000 Hz, stereo, s16, 112 kb/s Metadata: ENCODER : ffmpeg2theora-0.29 SOURCE_OSHASH : b4fbca60f42139a0 Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting format 'yuvj420p' [buffer @ 0x95f000] w:512 h:288 pixfmt:yuv420p [avsink @ 0x95f580] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out' [scale @ 0x95fc60] w:512 h:288 fmt:yuv420p -> w:512 h:288 fmt:yuvj420p flags:0x4 Output #0, mjpeg, to '/tmp/transform_78e66988266d-1.jpg': Metadata: encoder : Lavf53.21.0 Stream #0.0: Video: mjpeg, yuvj420p, 512x288 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 25 tbc Stream mapping: Stream #0:1 -> #0:0 (theora -> mjpeg) Press ctrl-c to stop encoding [theora @ 0xb54a00] vp3: first frame not a keyframe
looks like the process does not have enough memory to write the frame, setting a higher value this should work again: https://gerrit.wikimedia.org/r/#/c/30773/ if setting the global value is not an option, it possible to alternatively just use a higher value for video frame extraction.
ogg thumbnails now use oggThumb and seam to work. WebM thumbs work partially, i.e.: this fails: http://upload.wikimedia.org/wikipedia/test2/thumb/6/64/2012-07-18_Market_Street_-_San_Francisco.webm/800px--2012-07-18_Market_Street_-_San_Francisco.webm.jpg but the same video with another size works: http://upload.wikimedia.org/wikipedia/test2/thumb/6/64/2012-07-18_Market_Street_-_San_Francisco.webm/801px--2012-07-18_Market_Street_-_San_Francisco.webm.jpg are all imagescalers running the same code? works: http://test2.wikipedia.org/wiki/File:Citygroup_Center,_San_Francisco.webm does not work: http://test2.wikipedia.org/wiki/File:2012-07-18_Market_Street_-_San_Francisco.webm
Ok, this was due to the imagescalers in production having 8 cores and avconv automatically choosing number of threads based on number of cores. with https://gerrit.wikimedia.org/r/#/c/31244/ this is explicitly set to 1 and memory usage goes down. With just one thread memory usage goes down significantly, it should be possible to change $wgMaxShellMemory again.
