[FFmpeg-user] AAC decoding on Android

Ali Shaheen ali.shaheen at popcatcher.com
Fri Jul 20 18:06:06 CEST 2012


Carl, I ll try to run with 0.11.1 and then comeback to you. thanks


On 20 July 2012 17:59, Ali Shaheen <ali.shaheen at popcatcher.com> wrote:

> I have tried with the latest (0.11.1) but when built using same script and
> run with my application it gives this exception.
> 07-20 17:54:56.260: E/AndroidRuntime(22901): Caused by:
> java.lang.UnsatisfiedLinkError: Cannot load library: reloc_library[1311]:
> 139 cannot locate 'avcodec_init'...
>
> I searched a lot about the solution of the exception above and then moved
> back to 0.8.11.
>
> Thanks
>
>
>
> 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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>>
>
>


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