Opened 9 years ago
Closed 8 years ago
#4714 closed defect (fixed)
wmalossless decoder is not lossless
| Reported by: | ami_stuff | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | avcodec |
| Version: | git-master | Keywords: | wmalossless |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
ffmpeg's decoder doesn't decode the end of the file (there should be a little more data decoded, see wav file for comparision)
ffmpeg -i test.wav -f s16le input.pcm
ffmpeg -i test.wma -f s16le ffmpeg.pcm
input.pcm should match ffmpeg.pcm, but it doesn't
input wav file:
http://www.datafilehost.com/d/f8487fd6
input wma file:
http://www.datafilehost.com/d/c0e70968
C:\>ffmpeg -i test.wma out.wav
ffmpeg version N-73510-g033dc39 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.9.2 (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-aacenc --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enabl
e-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --ena
ble-decklink --enable-zlib
libavutil 54. 28.100 / 54. 28.100
libavcodec 56. 47.100 / 56. 47.100
libavformat 56. 40.100 / 56. 40.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 21.100 / 5. 21.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.100 / 1. 2.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, asf, from 'test.wma':
Metadata:
WMFSDKNeeded : 0.0.0.0000
DeviceConformanceTemplate: N1
WM/WMADRCPeakReference: 32767
WM/WMADRCPeakTarget: 32767
WM/WMADRCAverageReference: 11722
WM/WMADRCAverageTarget: 11722
WMFSDKVersion : 11.0.5721.5275
IsVBR : 1
Duration: 00:00:30.01, start: 0.000000, bitrate: 894 kb/s
Stream #0:0(pol): Audio: wmalossless (c[1][0][0] / 0x0163), 44100 Hz, stereo
, s16p, 1152 kb/s
Output #0, wav, to 'out.wav':
Metadata:
WMFSDKNeeded : 0.0.0.0000
DeviceConformanceTemplate: N1
WM/WMADRCPeakReference: 32767
WM/WMADRCPeakTarget: 32767
WM/WMADRCAverageReference: 11722
WM/WMADRCAverageTarget: 11722
WMFSDKVersion : 11.0.5721.5275
IsVBR : 1
ISFT : Lavf56.40.100
Stream #0:0(pol): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo
, s16, 1411 kb/s
Metadata:
encoder : Lavc56.47.100 pcm_s16le
Stream mapping:
Stream #0:0 -> #0:0 (wmalossless (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 38894, curre
nt: 28665; changing to 38894. This may result in incorrect timestamps in the out
put file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 38894, curre
nt: 30713; changing to 38894. This may result in incorrect timestamps in the out
put file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 38894, curre
nt: 32761; changing to 38894. This may result in incorrect timestamps in the out
put file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 38894, curre
nt: 34809; changing to 38894. This may result in incorrect timestamps in the out
put file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 38894, curre
nt: 32766; changing to 38894. This may result in incorrect timestamps in the out
put file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 38894, curre
nt: 34814; changing to 38894. This may result in incorrect timestamps in the out
put file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 139262, curr
ent: 139224; changing to 139262. This may result in incorrect timestamps in the
output file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 206843, curr
ent: 204756; changing to 206843. This may result in incorrect timestamps in the
output file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 206843, curr
ent: 206804; changing to 206843. This may result in incorrect timestamps in the
output file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 358395, curr
ent: 358357; changing to 358395. This may result in incorrect timestamps in the
output file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 389108, curr
ent: 387066; changing to 389108. This may result in incorrect timestamps in the
output file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 409595, curr
ent: 409557; changing to 409595. This may result in incorrect timestamps in the
output file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 460796, curr
ent: 460757; changing to 460796. This may result in incorrect timestamps in the
output file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 632830, curr
ent: 632791; changing to 632830. This may result in incorrect timestamps in the
output file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 837630, curr
ent: 837591; changing to 837630. This may result in incorrect timestamps in the
output file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 1005563, cur
rent: 1005524; changing to 1005563. This may result in incorrect timestamps in t
he output file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 1056763, cur
rent: 1056724; changing to 1056763. This may result in incorrect timestamps in t
he output file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 1107963, cur
rent: 1107924; changing to 1107963. This may result in incorrect timestamps in t
he output file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 1159163, cur
rent: 1159124; changing to 1159163. This may result in incorrect timestamps in t
he output file.
[wav @ 034f41e0] Non-monotonous DTS in output stream 0:0; previous: 1228797, cur
rent: 1228758; changing to 1228797. This may result in incorrect timestamps in t
he output file.
size= 5160kB time=00:00:30.09 bitrate=1404.7kbits/s
video:0kB audio:5160kB subtitle:0kB other streams:0kB global headers:0kB muxing
overhead: 0.001476%
Change History (6)
follow-ups: 2 3 comment:1 by , 9 years ago
| Component: | undetermined → avcodec |
|---|---|
| Keywords: | wmalossless added |
| Version: | unspecified → git-master |
comment:2 by , 9 years ago
Replying to cehoyos:
I tested the following:
$ mplayer test.wma -ac wma9dmo -ao pcmThe output file is shorter than FFmpeg's output (and bitexact for the size).
Is there a tool that decodes a longer file? (Is your wav file the input or the output file?)
Here is the output (test.wma -> freac.wav) from "fre:ac" audio converter (it matches test.wav file which I used to encode test.wma file):
comment:3 by , 9 years ago
Replying to cehoyos:
I tested the following:
$ mplayer test.wma -ac wma9dmo -ao pcmThe output file is shorter than FFmpeg's output (and bitexact for the size).
Is there a tool that decodes a longer file? (Is your wav file the input or the output file?)
Yup, mplayer with binary codec is even worst than ffmpeg's decoder (less data is decoded):
ffmpeg -i mplayer.wav/ffmpeg.wav/freac.wav -f s16le mplayer.pcm/ffmpeg.pcm/freac.pcm
mplayer.pcm - 5275648 bytes
ffmpeg.pcm - 5283840 bytes
freac.pcm - 5294592 bytes
so to reproduce this one would need to run "fre:ac" program under windows and decode
test.wma to freac_win.wav then next:
ffmpeg -i freac_win.wav -f s16le freac_win.pcm
and freac_win.pcm will match:
ffmpeg -i test.wav -f s16le test.pcm
"test.wav" is the file I used to encode test.wma
comment:5 by , 8 years ago
Replying to richardpl:
Bug report is now useless because uploaded files are gone.
comment:6 by , 8 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
Fixed in 60b75186b2c878b6257b43c8fcc0b1356ada218e.
I tested the following:
The output file is shorter than FFmpeg's output (and bitexact for the size).
Is there a tool that decodes a longer file? (Is your wav file the input or the output file?)