[FFmpeg-trac] #10118(avcodec:new): AC3 decoding throws error number -16976906 ... vlc plays well

FFmpeg trac at avcodec.org
Fri Dec 23 21:00:08 EET 2022


#10118: AC3 decoding throws error number -16976906 ... vlc plays well
-------------------------------------+-------------------------------------
             Reporter:  mvelanka     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  avcodec      |                  Version:
             Keywords:               |  unspecified
  AAC_AC3_PARSE_ERROR_SYNC           |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 I intend to transcode an mpeg ts file such that I copy the video as  it is
 but the audio will be encoded to aac ...so that I can play it in the
 browser. Please see the attached TS file.

 I use the following ffmpeg command to attempt that
 How to reproduce:
 {{{
 ffmpeg -i ff_vlc.ts -vcodec copy -acodec aac -map 0:v:0 -map 0:a:0
 ff_vlc_2.ts
 ffmpeg version N-109444-geef763c705 Copyright (c) 2000-2022 the FFmpeg
 developers
   built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
   configuration: --enable-openssl
   libavutil      57. 43.100 / 57. 43.100
   libavcodec     59. 55.103 / 59. 55.103
   libavformat    59. 34.102 / 59. 34.102
   libavdevice    59.  8.101 / 59.  8.101
   libavfilter     8. 53.100 /  8. 53.100
   libswscale      6.  8.112 /  6.  8.112
   libswresample   4.  9.100 /  4.  9.100
 [mpegts @ 0x55b4369b2440] Could not find codec parameters for stream 1
 (Audio: ac3 ([129][0][0][0] / 0x0081), stereo, fltp): unspecified sample
 rate
 Consider increasing the value for the 'analyzeduration' (0) and
 'probesize' (5000000) options
 Input #0, mpegts, from 'ff_vlc.ts':
   Duration: 00:10:00.02, start: 1.400000, bitrate: 1839 kb/s
   Program 1
     Metadata:
       service_name    : Service01
       service_provider: FFmpeg
   Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B),
 yuv420p(tv, bt709, progressive), 856x480 [SAR 320:321 DAR 16:9], 30 fps,
 59.94 tbr, 90k tbn
   Stream #0:1[0x101](spa): Audio: ac3 ([129][0][0][0] / 0x0081), stereo,
 fltp
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (ac3 (native) -> aac (native))
 Press [q] to stop, [?] for help
 Error while decoding stream #0:1: Error number -16976906 occurred
     Last message repeated 17065 times
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 Error while decoding stream #0:1: Error number -16976906 occurred
     Last message repeated 2 times
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 Error while decoding stream #0:1: Error number -16976906 occurred
     Last message repeated 2 times
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 Error while decoding stream #0:1: Error number -16976906 occurred
     Last message repeated 2 times
 ....
 ....
 ....(repetitive output clipped and removed)
 ....
 ....
     Last message repeated 2 times
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 Error while decoding stream #0:1: Error number -16976906 occurred
     Last message repeated 2 times
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 Error while decoding stream #0:1: Error number -16976906 occurred
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 Too many packets buffered for output stream 0:0.
 Error submitting a packet to the muxer for output stream #0:0.
 [abuffer @ 0x56289e5ab100] Value inf for parameter 'time_base' out of
 range [0 - 2.14748e+09]
     Last message repeated 1 times
 [abuffer @ 0x56289e5ab100] Error setting option time_base to value 1/0.
 [graph_0_in_0_1 @ 0x5628a3f5e800] Error applying options to the filter.
 Error reinitializing filters!
 Error while filtering: Numerical result out of range
 Finishing stream 0:1 without any data written to it.
 [abuffer @ 0x56289b2b89c0] Value inf for parameter 'time_base' out of
 range [0 - 2.14748e+09]
     Last message repeated 1 times
 [abuffer @ 0x56289b2b89c0] Error setting option time_base to value 1/0.
 [graph_0_in_0_1 @ 0x56289a63e780] Error applying options to the filter.
 Error configuring filter graph
 Conversion failed!
 }}}

 When I play this original ts file in VLC player there is no problem
 whatsoever. I can even verify the AC3 codec in VLC properly
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10118>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


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