[FFmpeg-trac] #1174(undetermined:new): iPod / iPad plays both audio tracks simultaneously
FFmpeg
trac at avcodec.org
Sat Apr 7 15:31:11 CEST 2012
#1174: iPod / iPad plays both audio tracks simultaneously
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Reporter: TonyPh12345 | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: 0.10.2 | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by TonyPh12345):
Replying to [comment:4 cehoyos]:
> You can use -vcodec mpeg4 instead of -vcodec copy to test if the audio
issue is still reproducible with current git head.
> Did you test the patch in ticket #468? You may need to git checkout
62101030c4ff23c61046a70cd27a627dfb0e0e54 to be able to apply the patch.
Using the -vcodec mpeg4 did indeed allow the GIT clone to run. However,
no fix for the audio as-is.
Since I'm a complete git-iot, I just hand-edited the patch from 468 into
the two files in the git clone and recompiled... It worked. iPad and iPod
both played the file correctly.
Unfortunately, the differences between the GIT and the 0.10.2 are too
extreme for me to the just re-use the edited movenc.c and movenc.h in the
10.2 build... won't compile. :(
Is there any branch that would get me far enough to keep using the -vcodec
COPY option, while keeping the patch? (-copy runs about 8x faster than
re-encoding to MP4... and I have about 3000 files I want to run this
against.)
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1174#comment:5>
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