> -----Original Message----- > From: ffmpeg-devel [mailto:ffmpeg-devel-boun...@ffmpeg.org] On Behalf Of Lynne > Sent: Wednesday, July 10, 2019 7:52 AM > To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org> > Subject: Re: [FFmpeg-devel] [PATCH] avfilter: add rawdump filter > > > > > Jul 10, 2019, 3:26 PM by ullysses.a.e...@intel.com: > > >> -----Original Message----- > >> From: Paul B Mahol [mailto:one...@gmail.com] > >> Sent: Wednesday, July 10, 2019 7:20 AM > >> To: Eoff, Ullysses A <ullysses.a.e...@intel.com> > >> Cc: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org> > >> Subject: Re: [FFmpeg-devel] [PATCH] avfilter: add rawdump filter > >> > >> On 7/10/19, Eoff, Ullysses A <ullysses.a.e...@intel.com> wrote: > >> >> -----Original Message----- > >> >> From: Paul B Mahol [mailto:one...@gmail.com] > >> >> Sent: Wednesday, July 10, 2019 3:25 AM > >> >> To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org> > >> >> Cc: Eoff, Ullysses A <ullysses.a.e...@intel.com> > >> >> Subject: Re: [FFmpeg-devel] [PATCH] avfilter: add rawdump filter > >> >> > >> >> On 7/10/19, Fu, Linjie <linjie...@intel.com> wrote: > >> >> >> -----Original Message----- > >> >> >> From: ffmpeg-devel [mailto:ffmpeg-devel-boun...@ffmpeg.org] On Behalf > >> >> >> Of Paul B Mahol > >> >> >> Sent: Wednesday, July 10, 2019 15:55 > >> >> >> To: FFmpeg development discussions and patches <ffmpeg- > >> >> >> de...@ffmpeg.org> > >> >> >> Cc: Eoff, Ullysses A <ullysses.a.e...@intel.com> > >> >> >> Subject: Re: [FFmpeg-devel] [PATCH] avfilter: add rawdump filter > >> >> >> > >> >> >> On 7/10/19, U. Artie Eoff <ullysses.a.e...@intel.com> wrote: > >> >> >> > This filter enables raw frames to be dumped to a > >> >> >> > file before they are sent through the auto-inserted > >> >> >> > scaler filter and useful when you want unscaled > >> >> >> > raw frames in an output file. > >> >> >> > > >> >> >> > >> >> >> Why? > >> >> >> > >> >> >> -f rawvideo doesn't work for you? > >> >> > > >> >> > unscaled raw video could be dumped through this filter in resolution > >> >> > changing cases. > >> >> > > >> >> > >> >> Maybe, I still fail how this filter is useful, when user can use split > >> >> filter to dump video > >> >> at any point in graph. > >> >> > >> > > >> > If there are already other ways to achieve the same result without this > >> > filter then that's great! Essentially, I'm trying to achieve exactly > >> > what > >> > Linjie stated so we can compare raw results across different decoder > >> > solutions. And the forced insertion of the auto scaler in ffmpeg makes > >> > that difficult for multi-resolution cases. > >> > >> Please provide examples of filtergraph where you are supposed to use > >> this "filter". > >> > > > > ffmpeg -v verbose -hwaccel vaapi -vaapi_device /dev/dri/renderD128 \ > > -i input.h264 -vf 'format=nv12,rawdump=file=./ffdump.yuv' -f null - > > > > You can make the decoder output nv12 directly via -hwaccel_output_format nv12
Agree. There are many ways to specify format. But there are some formats which one might want to dump that some hw drivers can't output directly without conversion. > _______________________________________________ > 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".
