On 18 May 2015, at 17:27, Shiwani Agrawal <agrawalshiwan...@outlook.com> wrote:
> Hello , > > Thanks for explanation , I would certainly test the speed enhancement for my > case before paying for the license . First read about quality of encoders, x264 used by ffmpeg, being the winner for years at http://www.compression.ru/video/codec_comparison/h264_2012/ > > Thanks and Regards , > Shiwnai > >> Date: Mon, 18 May 2015 17:19:22 +0200 >> From: barsn...@gmx.net >> To: ffmpeg-user@ffmpeg.org >> Subject: Re: [FFmpeg-user] Integration of ffmpeg with Haswell >> >> On Mon, May 18, 2015 at 15:07:03 +0000, Shiwani Agrawal wrote: >> >>> Thanks for helping me out in this issue , just want to clarify in the >>> end , does it mean that if we integrate ffmpeg with the media SDK it >>> increases the speed (or Quality) of transcoding process by processor >>> ? If yes , why ? >> >> The process is called "hardware acceleration". See here: >> https://trac.ffmpeg.org/wiki/HWAccelIntro >> >> It helps applications - in this case decoders, encoders, filters, and >> so on - use special hardware for certain calculations, thereby reducing >> the load on the CPU and/or increasing the speed. In your case, you are >> referring to the Intel Quick Sync hardware, which was created >> particularly for video (and audio?) coding. >> >> Using it _should_ increase the speed of the transcoding process (note >> that speed, quality and compression size are always trade-offs), but >> doesn't always, it depends on the implementation. On the other hard, >> the hardware algorithms have certain restrictions and aren't as >> flexible as software solutions. You won't be able to adjust all >> parameters of the encoding process, and sometimes more complex profiles >> or more modern codecs aren't supported either. So it really depends on >> your use case. >> >> And I think you need a really good justification to pay for an extra >> license for the Intel SDK. (I'm not sure a working free implementation >> exists yet.) As a normal user, I wouldn't go to the trouble of >> integrating the SDK. Just check how good ffmpeg's other support is for >> you first. >> >> Moritz >> _______________________________________________ >> ffmpeg-user mailing list >> ffmpeg-user@ffmpeg.org >> http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
