[FFmpeg-user] AAC decoding on Android
ali.shaheen at popcatcher.com
Thu Jul 26 16:22:22 CEST 2012
I tried with latest 0.11.1 ..it was giving error with avcodec_init() ..
i think now it has been removed in 0.11.1.
After commenting that, now i am getting SIGSEGV fault when
av_find_stream_info(formatctx) tries to fill my formatctx with the info
from custom stream ( AVIOContext) .
I think i should move back to 0.8.11 again on which it was working :)
On 20 July 2012 17:46, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> Ali Shaheen <ali.shaheen <at> popcatcher.com> writes:
> > I am using 0.8.11 and i have build for armv6.
> This is old, please test current git head.
> > I was wondering if there is some optimization flag
> > or something..
> > which can enhance performance by multithreading.
> There is no multithreading for audio decoding
> (and I would be surprised if a device that is too slow
> to decode AAC provides multiple cores).
> > in build script i have used these flags.
> > OPTIMIZE_CFLAGS="-marm -march=$CPU"
> > --extra-cflags=" -O3 -fpic -DANDROID -DHAVE_SYS_UIO_H=1
> > -Dipv6mr_interface=ipv6mr_ifindex -fasm -Wno-psabi -fno-short-enums
> > -fno-strict-aliasing -finline-limit=300 $OPTIMIZE_CFLAGS "
> Do you know that any of these flags have a positive effect
> on performance?
> Carl Eugen
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> ffmpeg-user at ffmpeg.org
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