#8936: Incorrect decoding of low-bitrate WMA 10 pro
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Reporter: Rollinnn | Owner: (none)
Type: defect | Status: open
Priority: normal | Component: avcodec
Version: git-master | Resolution:
Keywords: wmapro | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Changes (by Balling):
* status: new => open
Comment:
Yes, indeed Plex decoder is almost the same as the file (only 40 bytes
different or so)
{{{
libavutil 56. 63.101 / 56. 63.101
libavcodec 58.117.101 / 58.117.101
libavformat 58. 65.101 / 58. 65.101
libavfilter 7. 96.100 / 7. 96.100
libswscale 5. 8.100 / 5. 8.100
libswresample 3. 8.100 / 3. 8.100
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, asf, from '\wma_10_pro_incorrect_decoding.wma':
Metadata:
WMFSDKNeeded : 0.0.0.0000
DeviceConformanceTemplate: M1
WM/WMADRCPeakReference: 10061
WM/WMADRCPeakTarget: 10061
WM/WMADRCAverageReference: 2609
WM/WMADRCAverageTarget: 2609
WMFSDKVersion : 12.0.7601.17514
IsVBR : 1
Duration: 00:00:04.03, start: 0.000000, bitrate: 51 kb/s
Stream #0:0(rus): Audio: wmapro (b[1][0][0] / 0x0162), 44100 Hz,
stereo, 64 kb/s
[wmapro_mf @ 000001fc81b09d00] MFT name: 'WMAudio Decoder MFT'
Stream mapping:
Stream #0:0 -> #0:0 (wmapro (wmapro_mf) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, wav, to 'cdfeAWSf.wav':
Metadata:
WMFSDKNeeded : 0.0.0.0000
DeviceConformanceTemplate: M1
WM/WMADRCPeakReference: 10061
WM/WMADRCPeakTarget: 10061
WM/WMADRCAverageReference: 2609
WM/WMADRCAverageTarget: 2609
WMFSDKVersion : 12.0.7601.17514
IsVBR : 1
ISFT : Lavf58.65.101
Stream #0:0(rus): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz,
stereo, s16, 1411 kb/s
Metadata:
encoder : Lavc58.117.101 pcm_s16le
size= 689kB time=00:00:03.94 bitrate=1430.3kbits/s speed= 172x
video:0kB audio:689kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.011054%
}}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/8936#comment:3>
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