[Libav-user] Noise on mms-stream playing

[Alexey Belkevich]

> Please believe me that I do not copy-paste that and
> that I do not write this to make your life more 
> difficult but because it is needed to get support!

 Here it is. This is output of ffmpeg built for iPhoneSimulator
./ffmpeg -i mmst://wstream5a.di.fm/vocaltrance output.wav
ffmpeg version N-49622-g127ff88 Copyright (c) 2000-2013 the FFmpeg developers
  built on Feb  6 2013 11:14:05 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
  configuration: --prefix=i386 --enable-avresample --enable-cross-compile --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.0.sdk --target-os=darwin --cc=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc --extra-cflags='-arch i386' --extra-ldflags='-arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.0.sdk' --arch=i386 --cpu=i386 --enable-pic --disable-asm
  libavutil      52. 17.101 / 52. 17.101
  libavcodec     54. 91.100 / 54. 91.100
  libavformat    54. 61.104 / 54. 61.104
  libavdevice    54.  3.103 / 54.  3.103
  libavfilter     3. 35.101 /  3. 35.101
  libswscale      2.  2.100 /  2.  2.100
  libswresample   0. 17.102 /  0. 17.102
[asf @ 0x7a203c00] Estimating duration from bitrate, this may be inaccurate
Guessed Channel Layout for  Input Stream #0.0 : stereo
Input #0, asf, from 'mmst://wstream5a.di.fm/vocaltrance':
  Metadata:
    title           : DIGITALLY IMPORTED - Vocal Trance
    artist          : www.di.fm
    genre           : Electronic Trance Pop
    WMFSDKVersion   : 10.00.00.4007
    WMFSDKNeeded    : 0.0.0.0000
    IsVBR           : 0
  Duration: N/A, start: 964129.628000, bitrate: 40 kb/s
    Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 32000 Hz, stereo, fltp, 40 kb/s
    Stream #0:1(eng): Data: none, 0 kb/s
Output #0, wav, to 'output.wav':
  Metadata:
    INAM            : DIGITALLY IMPORTED - Vocal Trance
    IART            : www.di.fm
    IGNR            : Electronic Trance Pop
    WMFSDKVersion   : 10.00.00.4007
    WMFSDKNeeded    : 0.0.0.0000
    IsVBR           : 0
    ISFT            : Lavf54.61.104
    Stream #0:0(eng): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 32000 Hz, stereo, s16, 1024 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (wmav2 -> pcm_s16le)
Press [q] to stop, [?] for help
size=    3832kB time=00:00:30.69 bitrate=1022.9kbits/s    
video:0kB audio:3832kB subtitle:0 global headers:0kB muxing overhead 0.004332%


And this one for native OS X ffmpeg build
/ffmpeg -i mmst://wstream5a.di.fm/vocaltrance output.wav
ffmpeg version N-49588-g0b6f34c Copyright (c) 2000-2013 the FFmpeg developers
  built on Feb  5 2013 15:18:40 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
  configuration: 
  libavutil      52. 17.101 / 52. 17.101
  libavcodec     54. 91.100 / 54. 91.100
  libavformat    54. 61.104 / 54. 61.104
  libavdevice    54.  3.103 / 54.  3.103
  libavfilter     3. 35.101 /  3. 35.101
  libswscale      2.  2.100 /  2.  2.100
  libswresample   0. 17.102 /  0. 17.102
[asf @ 0x7f827c00f200] Estimating duration from bitrate, this may be inaccurate
Guessed Channel Layout for  Input Stream #0.0 : stereo
Input #0, asf, from 'mmst://wstream5a.di.fm/vocaltrance':
  Metadata:
    title           : DIGITALLY IMPORTED - Vocal Trance
    artist          : www.di.fm
    genre           : Electronic Trance Pop
    WMFSDKVersion   : 10.00.00.4007
    WMFSDKNeeded    : 0.0.0.0000
    IsVBR           : 0
  Duration: N/A, start: 964197.455000, bitrate: 40 kb/s
    Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 32000 Hz, stereo, fltp, 40 kb/s
    Stream #0:1(eng): Data: none, 0 kb/s
Output #0, wav, to 'output.wav':
  Metadata:
    INAM            : DIGITALLY IMPORTED - Vocal Trance
    IART            : www.di.fm
    IGNR            : Electronic Trance Pop
    WMFSDKVersion   : 10.00.00.4007
    WMFSDKNeeded    : 0.0.0.0000
    IsVBR           : 0
    ISFT            : Lavf54.61.104
    Stream #0:0(eng): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 32000 Hz, stereo, s16, 1024 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (wmav2 -> pcm_s16le)
Press [q] to stop, [?] for help
size=    2296kB time=00:00:18.44 bitrate=1019.8kbits/s    
video:0kB audio:2296kB subtitle:0 global headers:0kB muxing overhead 0.007231%


> My guess is that the decoder you are using changed 
> its output format but it's difficult to say, see 
> above.

I'm agree with you 
> Please fix your quoting, Carl Eugen

I'm don't understand what exactly you mean?
> 
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