[FFmpeg-trac] #7826(undetermined:new): fails to correctly read Opus test vector files

[FFmpeg]

#7826: fails to correctly read Opus test vector files
-------------------------------------+-------------------------------------
             Reporter:  calestyo     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:

 The Opus developer provide a set of test vector files to test for certain
 stuff of Opus:
 https://people.xiph.org/~greg/opus_testvectors/
 especially:
 correctness_gain_loud_speech.opus
 correctness_gain_silent_output.opus
 correctness_trimming_nobeeps.opus

 ffmpeg seems to incorrectly read correctness_trimming_nobeeps.opus,
 namely, there are beeps at the start and end of the file which (listen to
 the file) should not be played/used/etc. by conforming programs.

 ffmpeg however only "ignores" the final beep and not both, as a conforming
 program should.



 How to reproduce:
 {{{
 $ ffmpeg -i correctness_trimming_nobeeps.opus
 correctness_trimming_nobeeps.wav

 $ #playback the resulting WAV with any player will result in the leading
 beep to be heared.

 $ ffmpeg -version
 ffmpeg version 4.1.1-1 Copyright (c) 2000-2019 the FFmpeg developers
 built with gcc 8 (Debian 8.2.0-20)
 configuration: --prefix=/usr --extra-version=1 --toolchain=hardened
 --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu
 --arch=amd64 --enable-gpl --disable-stripping --enable-avresample
 --disable-filter=resample --enable-avisynth --enable-gnutls --enable-
 ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b
 --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite
 --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-
 libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-
 libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus
 --enable-libpulse --enable-librsvg --enable-librubberband --enable-
 libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-
 libssh --enable-libtheora --enable-libtwolame --enable-libvidstab
 --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq
 --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl
 --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883
 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
 libavutil      56. 22.100 / 56. 22.100
 libavcodec     58. 35.100 / 58. 35.100
 libavformat    58. 20.100 / 58. 20.100
 libavdevice    58.  5.100 / 58.  5.100
 libavfilter     7. 40.101 /  7. 40.101
 libavresample   4.  0.  0 /  4.  0.  0
 libswscale      5.  3.100 /  5.  3.100
 libswresample   3.  3.100 /  3.  3.100
 libpostproc    55.  3.100 / 55.  3.100
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7826>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker