Re: [FFmpeg-devel] mxf file support
Hi Tomas Sony defined many kinds of meta data. e.g. SMPTE RDD 18:2012 Acquisition Metadata Sets for Video Camera Parameters I think the file created by -vcodec copy is a general op1a mxf file. It can not pass Sony's mxf file verifier, which means their camera can not play those files. Yufei. On 03/22/2019 11:11 AM, Tomas Härdin wrote: > fre 2019-03-22 klockan 12:47 + skrev Yufei He: >> Hi Tomas >> >> From my tests, I find FFmpeg can demux XAVC mxf files from Sony and >> find the video stream is actually h.264 data. This is very good to us. >> >> Actually Sony XAVC mxf has a lot of restrictions on mxf file wrapper and >> h.264 data. >> >> But I don't know how to specify the it or it's not supported yet in FFmpeg. >> >> Probably we can support it if it's not there yet. > This depends on what the restrictions are. The first step would be to > just remux (-vcodec copy) the files and see what happens. If that > doesn't work then mxfenc.c would need to be patched > > /Tomas > ___ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-devel] mxf file support
fre 2019-03-22 klockan 12:47 + skrev Yufei He: > Hi Tomas > > From my tests, I find FFmpeg can demux XAVC mxf files from Sony and > find the video stream is actually h.264 data. This is very good to us. > > Actually Sony XAVC mxf has a lot of restrictions on mxf file wrapper and > h.264 data. > > But I don't know how to specify the it or it's not supported yet in FFmpeg. > > Probably we can support it if it's not there yet. This depends on what the restrictions are. The first step would be to just remux (-vcodec copy) the files and see what happens. If that doesn't work then mxfenc.c would need to be patched /Tomas ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-devel] mxf file support
Hi Tomas From my tests, I find FFmpeg can demux XAVC mxf files from Sony and find the video stream is actually h.264 data. This is very good to us. Actually Sony XAVC mxf has a lot of restrictions on mxf file wrapper and h.264 data. But I don't know how to specify the it or it's not supported yet in FFmpeg. Probably we can support it if it's not there yet. Yufei. On 03/21/2019 06:09 PM, Tomas Härdin wrote: > tor 2019-03-21 klockan 18:48 + skrev Yufei He: >> Hi >> >> It seems FFmpeg supports reading all kinds of mxf files from Sony and >> Panasonics. it's very good to find that FFmpeg can support Sony XAVC >> QuadHD files and find the essence data is actually H.264. >> >> Our customers have a lot of high data rate mxf files from Sony and >> Panasonics. They need transcode those files to streaming files like >> .ts,.mp4, etc. > Here it sounds like you you want to demux Sony XAVC MXFs.. > >> Does FFmpeg supports writing Sony XAVC mxf files ? > and here it sounds like you want to mux them. > > It's certainly possible to ape whatever peculiaritites Sony has for its > MXF muxer, I've done similar things with MXF in the past. > > /Tomas > ___ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-devel] mxf file support
tor 2019-03-21 klockan 18:48 + skrev Yufei He: > Hi > > It seems FFmpeg supports reading all kinds of mxf files from Sony and > Panasonics. it's very good to find that FFmpeg can support Sony XAVC > QuadHD files and find the essence data is actually H.264. > > Our customers have a lot of high data rate mxf files from Sony and > Panasonics. They need transcode those files to streaming files like > .ts,.mp4, etc. Here it sounds like you you want to demux Sony XAVC MXFs.. > Does FFmpeg supports writing Sony XAVC mxf files ? and here it sounds like you want to mux them. It's certainly possible to ape whatever peculiaritites Sony has for its MXF muxer, I've done similar things with MXF in the past. /Tomas ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-devel] mxf file support
Hi It seems FFmpeg supports reading all kinds of mxf files from Sony and Panasonics. it's very good to find that FFmpeg can support Sony XAVC QuadHD files and find the essence data is actually H.264. Our customers have a lot of high data rate mxf files from Sony and Panasonics. They need transcode those files to streaming files like .ts,.mp4, etc. Does FFmpeg supports writing Sony XAVC mxf files ? Thanks. Yufei. ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
