[k3b] [Bug 386105] New: K3b FFmpeg decode plugin seems to be broken, produces noise

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=386105

            Bug ID: 386105
           Summary: K3b FFmpeg decode plugin seems to be broken, produces
                    noise
           Product: k3b
           Version: 17.08.0
          Platform: Kubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Plugins
          Assignee: k3b at kde.org
          Reporter: blaze at vivaldi.net
                CC: michalm at jabster.pl, trueg at kde.org
  Target Milestone: ---

The output file contains noise. See the screenshot
https://i.imgur.com/SByZogg.png
The amount of noise increases if input file has lower bitrate.
The audio itself has twice(?) higher pitch than original and also seems to be
faster.
Timing is ok.

Also ffmpeg plugin currently uses deprecated API. This has to be fixed too at
some point.



Distro: Kubuntu 17.10 (Artful)

$ ffmpeg -version
ffmpeg version 3.3.4-2 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 7 (Ubuntu 7.2.0-8ubuntu2)
configuration: --prefix=/usr --extra-version=2 --toolchain=hardened
--libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu
--enable-gpl --disable-stripping --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-libmp3lame --enable-libopenjpeg --enable-libopenmpt
--enable-libopus --enable-libpulse --enable-librubberband --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-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl
--enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint
--enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil      55. 58.100 / 55. 58.100
libavcodec     57. 89.100 / 57. 89.100
libavformat    57. 71.100 / 57. 71.100
libavdevice    57.  6.100 / 57.  6.100
libavfilter     6. 82.100 /  6. 82.100
libavresample   3.  5.  0 /  3.  5.  0
libswscale      4.  6.100 /  4.  6.100
libswresample   2.  7.100 /  2.  7.100
libpostproc    54.  5.100 / 54.  5.100

-- 
You are receiving this mail because:
You are the assignee for the bug.