Re: [FFmpeg-devel] use openh264 in ffmpeg
On Mon, 2014-11-17 at 13:34 -0800, Timothy Gu wrote: > On Mon, Nov 17, 2014 at 1:18 AM, 王山而 wrote: > > hi > > I want to use openh264 in ffmpeg, how should I do this? > > please give me some help. > > thank you. > > Why? FFmpeg has a native H.264 decoder and I am fairly sure x264 > still > performs better than OpenH264. > The only reason that I can think of for doing this is that they (or their lawyers) believe that their use of ffmpeg's decoder or x264's encoder would require additional patent licensing, and they want to take advantage of the patent license included with the openh264 binaries that Cisco is providing. It might be interesting to support this use case, but it would be somewhat complicated; to get the patent license covered version of openh264 you have to download it yourself at runtime, which means that the ffmpeg interface would probably have to dlload() it rather than link to it. Of course, the current openh264 codec only does h264 baseline (not even main, let alone high...), making it of very limited use for anything at all. -- Calvin Walton ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
Re: [FFmpeg-devel] use openh264 in ffmpeg
On Mon, 17 Nov 2014 13:34:24 -0800 Timothy Gu wrote: > On Mon, Nov 17, 2014 at 1:18 AM, 王山而 wrote: > > hi > > I want to use openh264 in ffmpeg, how should I do this? > > please give me some help. > > thank you. > > Why? FFmpeg has a native H.264 decoder and I am fairly sure x264 still > performs better than OpenH264. users use ffmpeg as a wrapper api for the various standard encoders and decoders. libmpeg, xvid, libvorbis, etc. the wrapper code doesnt change much and people find it helpful. ffmpeg used to have a lot of wrappers for other libs. also useful for testing our dec/encoders. instead of having to use mplayer to test between xvid and ffmpeg4... -compn ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
Re: [FFmpeg-devel] use openh264 in ffmpeg
On Mon, Nov 17, 2014 at 1:18 AM, 王山而 wrote: > hi > I want to use openh264 in ffmpeg, how should I do this? > please give me some help. > thank you. Why? FFmpeg has a native H.264 decoder and I am fairly sure x264 still performs better than OpenH264. Timothy ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
[FFmpeg-devel] use openh264 in ffmpeg
hi I want to use openh264 in ffmpeg, how should I do this? please give me some help. thank you. ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
