mpeg-4 als: output is not lossless

[ami_stuff]

C:\>mp4alsRM23.exe -p -7 -n31705 -MP4 ll.wav

​http://www.datafilehost.com/d/4224898d

C:\>ffmpeg -i ll.mp4 -f s16le -y ff.pcm
ffmpeg version N-78758-g5156578 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 5.3.0 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-l
ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enab
le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --en
able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --ena
ble-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --
enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-lib
x265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-d
ecklink --enable-zlib
  libavutil      55. 19.100 / 55. 19.100
  libavcodec     57. 27.100 / 57. 27.100
  libavformat    57. 26.100 / 57. 26.100
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 37.100 /  6. 37.100
  libswscale      4.  0.100 /  4.  0.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
Guessed Channel Layout for  Input Stream #0.0 : stereo
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'll.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42isom
    creation_time   : 2016-03-06 19:10:35
  Duration: 00:00:30.01, start: 0.000000, bitrate: 800 kb/s
    Stream #0:0(und): Audio: mp4als (mp4a / 0x6134706D), 44100 Hz, 2 channels, s
16, 800 kb/s (default)
    Metadata:
      creation_time   : 2016-03-06 19:10:35
Output #0, s16le, to 'ff.pcm':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42isom
    encoder         : Lavf57.26.100
    Stream #0:0(und): Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s (defaul
t)
    Metadata:
      creation_time   : 2016-03-06 19:10:35
      encoder         : Lavc57.27.100 pcm_s16le
Stream mapping:
  Stream #0:0 -> #0:0 (mp4als (als) -> pcm_s16le (native))
Press [q] to stop, [?] for help
[output stream 0:0 @ 038f2720] 100 buffers queued in output stream 0:0, somethin
g may be wrong.
size=    5170kB time=00:00:30.01 bitrate=1411.2kbits/s speed=  48x
video:0kB audio:5170kB subtitle:0kB other streams:0kB global headers:0kB muxing
overhead: 0.000000%

[Carl Eugen Hoyos]

Do we already have ll.wav?

[Carl Eugen Hoyos]

Regression since 599881b0

[Michael Niedermayer]

This was fixed in 5d64ba9d18294a305f4f46c9a64e592dc5d34aa9 by Umair Khan