<br><br>On Wednesday, March 7, 2012, <<a href="mailto:x264-devel-request@videolan.org">x264-devel-request@videolan.org</a>> wrote:<br>> Send x264-devel mailing list submissions to<br>> <a href="mailto:x264-devel@videolan.org">x264-devel@videolan.org</a><br>
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><br>> When replying, please edit your Subject line so it is more specific<br>> than "Re: Contents of x264-devel digest..."<br>><br>><br>> Today's Topics:<br>><br>> 1. Re: How to speed ffmpeg-x264 encoder for better performance.<br>
> (Jason Garrett-Glaser)<br>> 2. Re: [PATCH 1/2] macosx: version the libraries (Gil Pedersen)<br>><br>><br>> ----------------------------------------------------------------------<br>><br>> Message: 1<br>
> Date: Tue, 6 Mar 2012 22:27:51 -0800<br>> From: Jason Garrett-Glaser <<a href="mailto:jason@x264.com">jason@x264.com</a>><br>> To: Mailing list for x264 developers <<a href="mailto:x264-devel@videolan.org">x264-devel@videolan.org</a>><br>
> Subject: Re: [x264-devel] How to speed ffmpeg-x264 encoder for better<br>> performance.<br>> Message-ID:<br>> <<a href="mailto:CABS55%2BBOJX4nLSLKLmBRHWaCLYnwEEj8R0V%2BDAJ1iA2Q4Gp0Dg@mail.gmail.com">CABS55+BOJX4nLSLKLmBRHWaCLYnwEEj8R0V+DAJ1iA2Q4Gp0Dg@mail.gmail.com</a>><br>
> Content-Type: text/plain; charset=ISO-8859-1<br>><br>> On Tue, Mar 6, 2012 at 9:02 PM, Sureshkumar M <<a href="mailto:sureshmenon87@gmail.com">sureshmenon87@gmail.com</a>> wrote:<br>>> Hi,<br>>><br>
>> I have ported ffmpeg-x264 with neon for android but the issue is<br>>> encoder takes more time to encode a single frame .It takes above 150ms<br>>> to encode and cpu rises to 85% in some devices like LG and<br>
>> samsung.when both encode and decoder active device struggle to give a<br>>> good smooth output.It is working better in Samsung GTI9000 compared to<br>>> other devices such as HTC Desire,..etc.i am using the following ffmpeg<br>
>> ?avcodeccontext settings during ffmpeg initialization.<br>>><br>>> c->bit_rate = 256000;<br>>> c->width = width;<br>>> c->height = height;<br>>> c->gop_size = 2;<br>>> c->pix_fmt = PIX_FMT_YUV420P;<br>
>> c->codec_type=AVMEDIA_TYPE_VIDEO;<br>>> c->codec_id=CODEC_ID_H264;<br>>> c->cqp=36;<br>>><br>>><br>>> Is there any other settings ?available or ?have to rebuild the x264<br>
>> with any advanced configure options?<br>><br>> Those settings look like complete nonsense; a keyframe interval of 2?<br>><br>> x264.h contains all of the x264 parameters and API functions. Try<br>> starting by setting a preset, like "superfast", using<br>
> x264_param_default_preset().<br>><br>> Jason<br><br>Hi,<br>Can u please suggest me better settings? or any useful links to understand about preset.<br><br><br>><br>><br>> ------------------------------<br>
><br>> Message: 2<br>> Date: Wed, 7 Mar 2012 10:18:00 +0000<br>> From: Gil Pedersen <<a href="mailto:gil@cmi.aau.dk">gil@cmi.aau.dk</a>><br>> To: Mailing list for x264 developers <<a href="mailto:x264-devel@videolan.org">x264-devel@videolan.org</a>><br>
> Subject: Re: [x264-devel] [PATCH 1/2] macosx: version the libraries<br>> Message-ID: <<a href="mailto:5F79001C-FFD3-443C-AA32-7B7A756A3394@cmi.aau.dk">5F79001C-FFD3-443C-AA32-7B7A756A3394@cmi.aau.dk</a>><br>
> Content-Type: text/plain; charset="us-ascii"<br>><br>> What is the rationale behind this change?<br>><br>> It will require a recompile of anything that links against libx264 and cause incompatible programs to crash when started. I don't see any benefits to the change when libx264 already has a link time check that will crash the calling app when x264_encoder_open() is called.<br>
><br>> Regards,<br>> Gil<br>><br>> ------------------------------<br>><br>> _______________________________________________<br>> x264-devel mailing list<br>> <a href="mailto:x264-devel@videolan.org">x264-devel@videolan.org</a><br>
> <a href="http://mailman.videolan.org/listinfo/x264-devel">http://mailman.videolan.org/listinfo/x264-devel</a><br>><br>><br>> End of x264-devel Digest, Vol 58, Issue 5<br>> *****************************************<br>
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