[FFmpeg-trac] #5258(avcodec:open): ffmpeg fails to decode opus test vectors correctly

[FFmpeg]

#5258: ffmpeg fails to decode opus test vectors correctly
------------------------------------+-----------------------------------
             Reporter:  calestyo    |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  opus        |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
------------------------------------+-----------------------------------
Changes (by cehoyos):

 * keywords:   => opus
 * status:  new => open
 * component:  undetermined => avcodec
 * reproduced:  0 => 1


Old description:

> taken from https://trac.ffmpeg.org/ticket/5238#comment:3
>
> ffmpeg fails to decode opus test vectors correctly, in especially:
> http://people.xiph.org/~greg/opus_testvectors/correctness_trimming_nobeeps.opus
>
> even using ffmpeg git:
> $ ./ffmpeg -i correctness_trimming_nobeeps.opus
> correctness_trimming_nobeeps.wav
> ffmpeg version N-78622-g2b5b001 Copyright (c) 2000-2016 the FFmpeg
> developers
>   built with gcc 5.3.1 (Debian 5.3.1-9) 20160220
>   configuration: --enable-gpl --enable-shared --disable-stripping
> --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-
> avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-
> libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-
> libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype
> --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug
> --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-
> libpulse --enable-librtmp --enable-libschroedinger --enable-libshine
> --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh
> --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx
> --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid
> --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab
> --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r
> --enable-libx264 --enable-libopencv --enable-version3 --enable-
> libopencore_amrnb --enable-libopencore_amrwb --enable-libvo_amrwbenc
>   libavutil      55. 18.100 / 55. 18.100
>   libavcodec     57. 24.105 / 57. 24.105
>   libavformat    57. 26.100 / 57. 26.100
>   libavdevice    57.  0.101 / 57.  0.101
>   libavfilter     6. 34.100 /  6. 34.100
>   libavresample   3.  0.  0 /  3.  0.  0
>   libswscale      4.  0.100 /  4.  0.100
>   libswresample   2.  0.101 /  2.  0.101
>   libpostproc    54.  0.100 / 54.  0.100
> Input #0, ogg, from 'correctness_trimming_nobeeps.opus':
>   Duration: 00:00:12.72, start: 0.000000, bitrate: 40 kb/s
>     Stream #0:0: Audio: opus, 48000 Hz, mono, fltp
>     Metadata:
>       ENCODER         : Xiph.Org Opus testvectormaker
>       TESTDESCRIPTION : Beeps at the beginning and end of this stream
> MUST be hidden by preskip and end-trimming.
>                       : If the beeps are heard the decoder is broken.
> Output #0, wav, to 'correctness_trimming_nobeeps.wav':
>   Metadata:
>     ISFT            : Lavf57.26.100
>     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz,
> mono, s16, 768 kb/s
>     Metadata:
>       TESTDESCRIPTION : Beeps at the beginning and end of this stream
> MUST be hidden by preskip and end-trimming.
>                       : If the beeps are heard the decoder is broken.
>       encoder         : Lavc57.24.105 pcm_s16le
> Stream mapping:
>   Stream #0:0 -> #0:0 (opus (native) -> pcm_s16le (native))
> Press [q] to stop, [?] for help
> size=    1193kB time=00:00:11.35 bitrate= 860.4kbits/s speed= 211x
> video:0kB audio:1193kB subtitle:0kB other streams:0kB global headers:0kB
> muxing overhead: 0.006388%
>

>
> the resulting WAV files still contains the beep

New description:

 taken from https://trac.ffmpeg.org/ticket/5238#comment:3

 ffmpeg fails to decode opus test vectors correctly, in especially:
 http://people.xiph.org/~greg/opus_testvectors/correctness_trimming_nobeeps.opus

 even using ffmpeg git:
 {{{
 $ ./ffmpeg -i correctness_trimming_nobeeps.opus
 correctness_trimming_nobeeps.wav
 ffmpeg version N-78622-g2b5b001 Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 5.3.1 (Debian 5.3.1-9) 20160220
   configuration: --enable-gpl --enable-shared --disable-stripping
 --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-
 avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-
 libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-
 libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype
 --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug
 --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-
 libpulse --enable-librtmp --enable-libschroedinger --enable-libshine
 --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh
 --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx
 --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid
 --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab
 --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r
 --enable-libx264 --enable-libopencv --enable-version3 --enable-
 libopencore_amrnb --enable-libopencore_amrwb --enable-libvo_amrwbenc
   libavutil      55. 18.100 / 55. 18.100
   libavcodec     57. 24.105 / 57. 24.105
   libavformat    57. 26.100 / 57. 26.100
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 34.100 /  6. 34.100
   libavresample   3.  0.  0 /  3.  0.  0
   libswscale      4.  0.100 /  4.  0.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
 Input #0, ogg, from 'correctness_trimming_nobeeps.opus':
   Duration: 00:00:12.72, start: 0.000000, bitrate: 40 kb/s
     Stream #0:0: Audio: opus, 48000 Hz, mono, fltp
     Metadata:
       ENCODER         : Xiph.Org Opus testvectormaker
       TESTDESCRIPTION : Beeps at the beginning and end of this stream MUST
 be hidden by preskip and end-trimming.
                       : If the beeps are heard the decoder is broken.
 Output #0, wav, to 'correctness_trimming_nobeeps.wav':
   Metadata:
     ISFT            : Lavf57.26.100
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, mono,
 s16, 768 kb/s
     Metadata:
       TESTDESCRIPTION : Beeps at the beginning and end of this stream MUST
 be hidden by preskip and end-trimming.
                       : If the beeps are heard the decoder is broken.
       encoder         : Lavc57.24.105 pcm_s16le
 Stream mapping:
   Stream #0:0 -> #0:0 (opus (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 size=    1193kB time=00:00:11.35 bitrate= 860.4kbits/s speed= 211x
 video:0kB audio:1193kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.006388%
 }}}
 the resulting WAV files still contains the beep

--

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5258#comment:1>
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