> -----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 - > > > > Could you point me to an example of using split to achieve this? > > See documentation of split filter. Thanks. I will take a look and experiment with it. > > > > > U. Artie > > > >> > >> > IMHO, it will be great if there are some options available to > >> > disable/enable > >> > the auto scaling filter > >> > in pipeline, thus the whole stream doesn't need to be scaled into the > >> > same > >> > size of the first frame. > >> > The difference in scale algorithms will make it hard to compare the > >> > output > >> > with other decoder. > >> > > >> > - linjie > >> > _______________________________________________ > >> > 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".
