[FFmpeg-trac] #3311(undetermined:new): av_find_best_stream returns an invalid audio stream

FFmpeg trac at avcodec.org
Wed Jan 15 23:40:23 CET 2014


#3311: av_find_best_stream returns an invalid audio stream
-------------------------------------+-------------------------------------
             Reporter:  hxuanyu      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 In the attached file there are 2 audio streams

     Stream #0:0[0x200]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
 yuv420p(tv), 720x480 [SAR 32:27 DAR 16:9], max. 9000 kb/s, 29.97 fps,
 29.97 tbr, 90k tbn, 59.94 tbc
     Stream #0:1[0x201]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
 yuv420p(tv, bt709), 352x240 [SAR 40:33 DAR 16:9], max. 300 kb/s, 29.97
 fps, 29.97 tbr, 90k tbn, 59.94 tbc
     Stream #0:2[0x210]: Audio: aac ([15][0][0][0] / 0x000F), 0 channels,
 fltp, 149 kb/s
     Stream #0:3[0x212]: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz,
 mono, fltp, 75 kb/s
     Stream #0:4[0x230]: Unknown: none ([6][0][0][0] / 0x0006)
     Stream #0:5[0x140]: Unknown: none ([13][0][0][0] / 0x000D)
     Stream #0:6[0x158]: Unknown: none ([13][0][0][0] / 0x000D)

 but av_find_best_stream returns #0:2 which outputs just silence (because
 of 0 channel?) instead of the valid stream #0:3.

 This can be reproduce by playing the file with ffplay.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3311>
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