Gstreamer fails to play some .mp4 videos

Gstreamer is no longer able to play *some* .mp4 videos. Just until recently
(possibly update) that worked fine for me. I will appretiate any help with resolving this problem.
Videos concerning were downloaded from Youtube via the Firefox DownloadHelper,
so I suspect some of them to use some non-standard format feature. Also
ffmpeg-ing videos to other or same format works and converted videos can be
played by Gstreamer without problems.
This is the only download video I was able to confirm Gstreamer can still play:
http://www.youtube.com/watch?v=T0UbcngpDkk
It fails for almost every other, e.g.:
http://www.youtube.com/watch?v=h0ffIJ7ZO4U
Gstreamer output:
$ gst-launch-0.10 filesrc location=blue.mp4 ! decodebin2 name=dec ! queue !
ffmpegcolorspace ! autovideosink
New clock: GstSystemClock
Received end of stream from „pipeline0“.
Execution ended after 181781 ns.
Working video ffmpeg output:
$ ffmpeg -i Blue\ Effect\ -\ Má\ Hra-2.mp4
ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers
built on Mar 17 2012 08:51:02 with gcc 4.6.3
configuration: --prefix=/usr --enable-libmp3lame --enable-libvorbis
--enable-libxvid --enable-libx264 --enable-libvpx --enable-libtheora
--enable-libgsm --enable-libspeex --enable-postproc --enable-shared
--enable-x11grab --enable-libopencore_amrnb --enable-libopencore_amrwb
--enable-libschroedinger --enable-libopenjpeg --enable-librtmp
--enable-libpulse --enable-gpl --enable-version3 --enable-runtime-cpudetect
--disable-debug --disable-static
libavutil 51. 35.100 / 51. 35.100
libavcodec 53. 61.100 / 53. 61.100
libavformat 53. 32.100 / 53. 32.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 61.100 / 2. 61.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 6.100 / 0. 6.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Blue Effect - Má Hra-2.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2011-12-16 00:15:06
Duration: 00:10:12.24, start: 0.000000, bitrate: 436 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661),
yuv420p, 640x360, 337 kb/s, 25 fps, 25 tbr, 50 tbn, 50 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 95
kb/s
Metadata:
creation_time : 2011-12-16 00:15:06
handler_name :
Not working video ffmpeg dump:
$ ffmpeg -i Dire\ Straits\ -\ Sultans\ Of\ Swing.mp4
ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers
built on Mar 17 2012 08:51:02 with gcc 4.6.3
configuration: --prefix=/usr --enable-libmp3lame --enable-libvorbis
--enable-libxvid --enable-libx264 --enable-libvpx --enable-libtheora
--enable-libgsm --enable-libspeex --enable-postproc --enable-shared
--enable-x11grab --enable-libopencore_amrnb --enable-libopencore_amrwb
--enable-libschroedinger --enable-libopenjpeg --enable-librtmp
--enable-libpulse --enable-gpl --enable-version3 --enable-runtime-cpudetect
--disable-debug --disable-static
libavutil 51. 35.100 / 51. 35.100
libavcodec 53. 61.100 / 53. 61.100
libavformat 53. 32.100 / 53. 32.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 61.100 / 2. 61.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 6.100 / 0. 6.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Dire Straits - Sultans Of Swing.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isomavc1mp42
creation_time : 2010-02-22 17:27:21
Duration: 00:04:26.72, start: 0.000000, bitrate: 663 kb/s
Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16,
122 kb/s
Metadata:
creation_time : 2010-02-22 17:27:21
handler_name : (C) 2007 Google Inc. v08.13.2007.
Stream #0:1(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661),
yuv420p, 480x360 [SAR 1:1 DAR 4:3], 538 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc
Metadata:
creation_time : 2010-02-22 17:27:21
handler_name :
Last edited by xkrajnan (2012-03-19 13:56:51)

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