[FFmpeg-trac] #8428(undetermined:new): ffmpeg has problems with some AC-3/EAC-3 files with "syncword" 0x770b
FFmpeg
trac at avcodec.org
Fri Feb 21 23:46:30 EET 2020
#8428: ffmpeg has problems with some AC-3/EAC-3 files with "syncword" 0x770b
-------------------------------------+-------------------------------------
Reporter: zhidd | Owner:
Type: defect | Status: new
Priority: normal | Component:
| undetermined
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by zhidd):
i just had to find them out after data-mining a PS2 game called The
Bouncer.
''strangely_encoded_ac3_file_that_hangs_up_after_two_seconds_when_decoding_or_playing_it_on_anything_else_that_supports_ac3.ac3''
is (or at the very least appears to be) a legit AC-3 file that came from a
.dat/.sz "video+audio" file as used by the game.
''dolby_digital_file_with_header_except_this_file_plays_way_too_fast.ac3''
was sorta generated after passing through the game with PCSX2. simply put,
the game has a built-in option for Dolby Digital as its output audio that
only really works in some places. i can't really explain how the file
ended up into what it was here.
futhermore i can't really explain how the files were encoded/created in
the first place because i was not responsible for the creation of these
files either. i just had to find a sample.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8428#comment:7>
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