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

FFmpeg trac at avcodec.org
Thu May 3 02:10:47 CEST 2012


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

Comment (by MarkRose):

 Using libvorbis.c from f1fdd208 works. It produces both audio+video and
 audio only files that work fine.

 Audio + video:
 {{{
 ffmpeg -y -i 7000000009434.mp4 -vcodec libvpx -b:v 800k -bt 400k -vsync 2
 -s 640x358 -acodec libvorbis -ac 2 -ar 44100 -ab 48k -async 441000
 7000000009434-libvorbis.c.webm
 ffmpeg version N-38358-g2330eb1 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on May  3 2012 00:00:25 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. 49.100 / 51. 49.100
   libavcodec     54. 17.101 / 54. 17.101
   libavformat    54.  3.100 / 54.  3.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 72.103 /  2. 72.103
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 11.100 /  0. 11.100
   libpostproc    52.  0.100 / 52.  0.100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x36520e0] 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    : SoundHandler
 [buffer @ 0x364dfc0] w:640 h:358 pixfmt:yuv420p tb:1/1000000 sar:0/1
 sws_param:flags=2
 [scale @ 0x364e7c0] w:640 h:358 fmt:yuv420p sar:0/1 -> w:640 h:358
 fmt:yuv420p sar:0/1 flags:0x4
 Incompatible sample format 's16' for codec 'libvorbis', auto-selecting
 format 'flt'
 [libvpx @ 0x3664520] v1.0.0-183-g73423f7
 Output #0, webm, to '7000000009434-libvorbis.c.webm':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     encoder         : Lavf54.3.100
     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, stereo, flt, 48 kb/s
     Metadata:
       handler_name    : SoundHandler
 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= 17 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%
 }}}


 Audio:
 {{{
 ffmpeg -y -i 7000000009434.mp4 -vn -acodec libvorbis -ac 2 -ar 44100 -ab
 48k -async 441000 7000000009434-libvorbis.c-audio.webmffmpeg version
 N-38358-g2330eb1 Copyright (c) 2000-2012 the FFmpeg developers
   built on May  3 2012 00:00:25 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. 49.100 / 51. 49.100
   libavcodec     54. 17.101 / 54. 17.101
   libavformat    54.  3.100 / 54.  3.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 72.103 /  2. 72.103
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 11.100 /  0. 11.100
   libpostproc    52.  0.100 / 52.  0.100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x307b0e0] 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    : SoundHandler
 Incompatible sample format 's16' for codec 'libvorbis', auto-selecting
 format 'flt'
 Output #0, webm, to '7000000009434-libvorbis.c-audio.webm':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2avc1mp41
     encoder         : Lavf54.3.100
     Stream #0:0(und): Audio: vorbis, 44100 Hz, stereo, flt, 48 kb/s
     Metadata:
       handler_name    : SoundHandler
 Stream mapping:
   Stream #0:1 -> #0:0 (aac -> libvorbis)
 Press [q] to stop, [?] for help
 size=     104kB time=00:00:26.35 bitrate=  32.2kbits/s
 video:0kB audio:95kB global headers:4kB muxing overhead 4.901912%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1183#comment:13>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list