[FFmpeg-trac] #9358(avcodec:new): XWMA decoding fails for some files
FFmpeg
trac at avcodec.org
Tue Aug 3 22:53:38 EEST 2021
#9358: XWMA decoding fails for some files
-------------------------------------+-------------------------------------
Reporter: Andrew | Type: defect
Eikum |
Status: new | Priority: normal
Component: avcodec | Version: git-
| master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
libavcodec is failing to properly decode some XWMA files. These files can
be decoded properly with Microsoft's xWMAEncode.exe decoder.
The failure can be reproduced with the ffmpeg CLI:
$ ffmpeg -i b8edfb1e970ed7892f35b34a1ef36fee_wma.wav -c:a pcm_s16le
out.wav
...
[wmav2 @ 0x55f612b2e700] overflow (2891 > 1864) in spectral RLE, ignoring
[wmav2 @ 0x55f612b2e700] overflow (3421 > 1864) in spectral RLE, ignoring
[wmav2 @ 0x55f612b2e700] overflow (128 > 116) in spectral RLE, ignoring
[wmav2 @ 0x55f612b2e700] next_block_len_bits 4 out of range
Error while decoding stream #0:0: Operation not permitted
[wmav2 @ 0x55f612b2e700] frame_len overflow
Error while decoding stream #0:0: Operation not permitted
Aside from the error messages, the audible output from ffmpeg has some
glitches. I will attach here a handful of sample files, all of which fail
similarly.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/9358>
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