[FFmpeg-devel] A question about Stagefright library

[Mohamed Naufal]

Hi,

On 13 May 2012 22:46, 宋骐 <songqi1990 at gmail.com> wrote:
> Sorry to bother you,
> I have another question,if h264.c in libavcodec is just for software decode
> and libstagefright is just for hardware decode?I'm now trying to use
> stagefright in Android directly to do H/W decoder.
>

The libstagefright decoder in ffmpeg interfaces with the android
stagefright library. Stagefright is a wrapper over the iomx/omx layer
in android. The actual codec implementation in this layer can be
either in software (as in emulators) or hardware (most devices).

To build ffmpeg with libstagefright, run tools/build_libstagefright.
To use it in your application, you'll have to link against these
android libs: libstagefright.so, libbinder.so, libutils.so,
libmedia.so.

Regards,
Naufal

> Thanks
> 2012-05-13
>
> 2012/5/12 jiayaowang <jiayaowang at gmail.com>
>
>> Hi Qi,
>>
>> I think libavcodec/libstagefright.cpp only a h.264 software decoder
>> implement, that try to can be loaded in Android StageFright.
>> For H/W deocder I suggest OMX IL.
>>
>> Thanks.
>>
>>
>> 2012-05-12
>>
>>
>>
>> jiayaowang
>>
>>
>>
>> 发件人： 宋骐
>> 发送时间： 2012-05-11 22:26:50
>> 收件人： ffmpeg-devel
>> 抄送：
>> 主题： [FFmpeg-devel] A question about Stagefright library
>>
>> hello,
>> I'm working on android programming and want to use hardware decoder to
>> decode H264 video stream. I noticed that  ffmpeg has already included
>> (libavcodec/libstagefright.cpp) and claimed to support H264's hardware
>> decoding through StageFright framework. But I have checked the Internet and
>> didn't find enough information about how to use Stagefright library. Can
>> you provide me some Technical information？
>> Best!
>> --
>> Songqi
>> School of Computer Science and Engineering BUAA
>> Tel:13426016770
>> MSN:songqi1990 at hotmail.com
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