[FFmpeg-trac] #1183(undetermined:new): MP4->webm stopped playing in firefox (with git bisect)

FFmpeg trac at avcodec.org
Tue Apr 10 02:48:40 CEST 2012


#1183: MP4->webm stopped playing in firefox (with git bisect)
-------------------------------------+-------------------------------------
             Reporter:  MarkRose     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:  webm         |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by MarkRose):

 The console output doesn't reveal much.

 Good webm console output (f1fdd208cc0a1fce7aaaf6b0fe72b013525f49e0):

 {{{

 ffmpeg version N-37074-gf1fdd20 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Apr 10 2012 00:16:34 with gcc 4.6.1
   configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-
 postproc --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb
 --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-
 libvpx --enable-libx264 --enable-libxvid --enable-libspeex --enable-
 libschroedinger --enable-hwaccel=h264_vaapi
   libavutil      51. 44.100 / 51. 44.100
   libavcodec     54. 12.100 / 54. 12.100
   libavformat    54.  2.100 / 54.  2.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 65.102 /  2. 65.102
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0.  7.100 /  0.  7.100
   libpostproc    52.  0.100 / 52.  0.100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1b143a0] multiple edit list entries, a/v
 desync might occur, patch welcome
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '7000000009434.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     encoder         : Lavf54.3.100
   Duration: 00:00:26.34, start: 0.000000, bitrate: 644 kb/s
     Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
 640x358, 593 kb/s, 20.29 fps, 30 tbr, 30 tbn, 60 tbc
     Metadata:
       handler_name    : VideoHandler
     Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo,
 s16, 45 kb/s
     Metadata:
       handler_name    :
 [buffer @ 0x1b132a0] w:640 h:358 pixfmt:yuv420p tb:1/1000000 sar:0/1
 sws_param:
 Incompatible sample format 's16' for codec 'libvorbis', auto-selecting
 format 'flt'
 [libvpx @ 0x1b31c20] v1.0.0-151-g24ccd56
 Output #0, webm, to '7000000009434.webm':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     encoder         : Lavf54.2.100
     Stream #0:0(und): Video: vp8, yuv420p, 640x358, q=-1--1, 800 kb/s, 1k
 tbn, 30 tbc
     Metadata:
       handler_name    : VideoHandler
     Stream #0:1(und): Audio: vorbis, 44100 Hz, 2 channels, flt, 48 kb/s
     Metadata:
       handler_name    :
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 -> libvpx)
   Stream #0:1 -> #0:1 (aac -> libvorbis)
 Press [q] to stop, [?] for help
 frame=  533 fps= 39 q=0.0 Lsize=    3697kB time=00:00:26.23
 bitrate=1154.5kbits/s
 video:3590kB audio:95kB global headers:4kB muxing overhead 0.235802%
 }}}

 Bad webm console output (967facb6950549d0cc4e0ba79a056ebc6f93a049):

 {{{
 ffmpeg version N-37101-g967facb Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Apr  9 2012 23:30:05 with gcc 4.6.1
   configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-
 postproc --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb
 --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-
 libvpx --enable-libx264 --enable-libxvid --enable-libspeex --enable-
 libschroedinger --enable-hwaccel=h264_vaapi
   libavutil      51. 44.100 / 51. 44.100
   libavcodec     54. 12.100 / 54. 12.100
   libavformat    54.  2.100 / 54.  2.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 65.102 /  2. 65.102
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0.  7.100 /  0.  7.100
   libpostproc    52.  0.100 / 52.  0.100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x29423a0] multiple edit list entries, a/v
 desync might occur, patch welcome
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '7000000009434.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     encoder         : Lavf54.3.100
   Duration: 00:00:26.34, start: 0.000000, bitrate: 644 kb/s
     Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
 640x358, 593 kb/s, 20.29 fps, 30 tbr, 30 tbn, 60 tbc
     Metadata:
       handler_name    : VideoHandler
     Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo,
 s16, 45 kb/s
     Metadata:
       handler_name    :
 [buffer @ 0x2941440] w:640 h:358 pixfmt:yuv420p tb:1/1000000 sar:0/1
 sws_param:
 Incompatible sample format 's16' for codec 'libvorbis', auto-selecting
 format 'flt'
 [libvpx @ 0x295fc20] v1.0.0-151-g24ccd56
 Output #0, webm, to '7000000009434.webm':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     encoder         : Lavf54.2.100
     Stream #0:0(und): Video: vp8, yuv420p, 640x358, q=-1--1, 800 kb/s, 1k
 tbn, 30 tbc
     Metadata:
       handler_name    : VideoHandler
     Stream #0:1(und): Audio: vorbis, 44100 Hz, 2 channels, flt, 48 kb/s
     Metadata:
       handler_name    :
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 -> libvpx)
   Stream #0:1 -> #0:1 (aac -> libvorbis)
 Press [q] to stop, [?] for help
 frame=  533 fps= 39 q=0.0 Lsize=    3697kB time=00:00:26.23
 bitrate=1154.5kbits/s
 video:3590kB audio:95kB global headers:4kB muxing overhead 0.235802%
 }}}

 I didn't try to reproduce the problem without video/audio (I need both).
 Audio does seem to keep playing in Firefox while the video freezes.

 I may have time to play with the libvorbis.c tomorrow.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1183#comment:2>
FFmpeg <http://ffmpeg.org>
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