[FFmpeg-trac] #200(avcodec:reopened): aac - failure decoding audio stream when audio configuration changes

FFmpeg trac at avcodec.org
Fri Sep 23 09:51:09 CEST 2011


#200: aac - failure decoding audio stream when audio configuration changes
------------------------------------+------------------------------------
             Reporter:  gmcallow    |                    Owner:
                 Type:  defect      |                   Status:  reopened
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
------------------------------------+------------------------------------
Changes (by cehoyos):

 * status:  closed => reopened
 * resolution:  fixed =>


Comment:

 The original sample still fails (parse_adts_frame_header is never called)
 {{{
 $ ffmpeg -i stereo51.loas out.ac3
 ffmpeg version N-32813-g6d789f5, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Sep 23 2011 09:28:25 with gcc 4.5.3
   configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc
   libavutil    51. 17. 0 / 51. 17. 0
   libavcodec   53. 17. 0 / 53. 17. 0
   libavformat  53. 13. 0 / 53. 13. 0
   libavdevice  53.  4. 0 / 53.  4. 0
   libavfilter   2. 43. 3 /  2. 43. 3
   libswscale    2.  1. 0 /  2.  1. 0
 [loas @ 0x12b8780] max_analyze_duration 5000000 reached at 5013333
 [loas @ 0x12b8780] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, loas, from 'stereo51.loas':
   Duration: N/A, bitrate: N/A
     Stream #0.0: Audio: aac_latm, 48000 Hz, stereo, s16
 Incompatible sample format 's16' for codec 'ac3', auto-selecting format
 'flt'
 Output #0, ac3, to 'out.ac3':
   Metadata:
     encoder         : Lavf53.13.0
     Stream #0.0: Audio: ac3, 48000 Hz, stereo, flt, 128 kb/s
 Stream mapping:
   Stream #0.0 -> #0.0 (aac_latm -> ac3)
 Press [q] to stop, [?] for help
 [aac_latm @ 0x12beb20] channel element 0.0 is not allocated
 Error while decoding stream #0.0
 Error while decoding stream #0.0

 ...

 Error while decoding stream #0.0
 Error while decoding stream #0.0
     Last message repeated 692 times
 size=     308kB time=00:00:19.68 bitrate= 128.0kbits/s
 video:0kB audio:308kB global headers:0kB muxing overhead 0.000000%
 }}}

-- 
Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/200#comment:3>
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