[FFmpeg-trac] #2811(avcodec:new): error shown for h264 I-frame

FFmpeg trac at avcodec.org
Fri Jul 26 15:35:35 CEST 2013


#2811: error shown for h264 I-frame
-------------------------------------+-------------------------------------
             Reporter:  cehoyos      |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  minor        |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  regression   |               Blocked By:
  h264                               |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Description changed by cehoyos:

Old description:

> http://thread.gmane.org/gmane.comp.video.ffmpeg.user/44281/focus=46797
> A user uploaded a transport stream recorded with a camera for which
> FFmpeg shows an error message (only) when decoding the first frame (an
> I-frame, not an IDR-frame).
> The same error is shown when only reading the raw I-frame since d9ced9f
> (related to ticket #711), the frame can be decoded with the reference
> decoder (bit-identical with FFmpeg).
> {{{
> $ ffmpeg -i 00005.mts.Iframe.264 ^C
> cehoyos at lisbeth:~/test/cehoyos/Samples/users> mv 00005.mts.Iframe.264
> Iframe.264
> cehoyos at lisbeth:~/test/cehoyos/Samples/users>
> ~/test/cehoyos/FFmpeg/ffmpeg -i Iframe.264
> ffmpeg version N-54946-gaf2a196 Copyright (c) 2000-2013 the FFmpeg
> developers
>   built on Jul 26 2013 15:31:59 with gcc 4.7 (SUSE Linux)
>   configuration: --enable-gpl --disable-indev=jack
>   libavutil      52. 40.100 / 52. 40.100
>   libavcodec     55. 19.100 / 55. 19.100
>   libavformat    55. 12.102 / 55. 12.102
>   libavdevice    55.  3.100 / 55.  3.100
>   libavfilter     3. 81.103 /  3. 81.103
>   libswscale      2.  4.100 /  2.  4.100
>   libswresample   0. 17.103 /  0. 17.103
>   libpostproc    52.  3.100 / 52.  3.100
> [h264 @ 0x1c19be0] mmco: unref short failure
> [h264 @ 0x1c19080] decoding for stream 0 failed
> Input #0, h264, from 'Iframe.264':
>   Duration: N/A, bitrate: N/A
>     Stream #0:0: Video: h264 (High), yuv420p, 1280x720 [SAR 1:1 DAR
> 16:9], 50 tbr, 1200k tbn, 100 tbc
> At least one output file must be specified
> }}}

New description:

 http://thread.gmane.org/gmane.comp.video.ffmpeg.user/44281/focus=46797
 A user uploaded a transport stream recorded with a Panasonic AG-HMC150
 camera for which FFmpeg shows an error message (only) when decoding the
 first frame (an I-frame, not an IDR-frame).
 The same error is shown when only reading the raw I-frame since d9ced9f
 (related to ticket #711), the frame can be decoded with the reference
 decoder (bit-identical with FFmpeg).
 {{{
 $ ffmpeg -i 00005.mts.Iframe.264 ^C
 cehoyos at lisbeth:~/test/cehoyos/Samples/users> mv 00005.mts.Iframe.264
 Iframe.264
 cehoyos at lisbeth:~/test/cehoyos/Samples/users> ~/test/cehoyos/FFmpeg/ffmpeg
 -i Iframe.264
 ffmpeg version N-54946-gaf2a196 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Jul 26 2013 15:31:59 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl --disable-indev=jack
   libavutil      52. 40.100 / 52. 40.100
   libavcodec     55. 19.100 / 55. 19.100
   libavformat    55. 12.102 / 55. 12.102
   libavdevice    55.  3.100 / 55.  3.100
   libavfilter     3. 81.103 /  3. 81.103
   libswscale      2.  4.100 /  2.  4.100
   libswresample   0. 17.103 /  0. 17.103
   libpostproc    52.  3.100 / 52.  3.100
 [h264 @ 0x1c19be0] mmco: unref short failure
 [h264 @ 0x1c19080] decoding for stream 0 failed
 Input #0, h264, from 'Iframe.264':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: h264 (High), yuv420p, 1280x720 [SAR 1:1 DAR 16:9],
 50 tbr, 1200k tbn, 100 tbc
 At least one output file must be specified
 }}}

--

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2811#comment:1>
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