[FFmpeg-devel] [PATCH] avfilter: add rawdump filter

[Paul B Mahol]

On 7/10/19, Fu, Linjie <linjie.fu at intel.com> wrote:
>> -----Original Message-----
>> From: ffmpeg-devel [mailto:ffmpeg-devel-bounces at ffmpeg.org] On Behalf
>> Of Paul B Mahol
>> Sent: Wednesday, July 10, 2019 15:55
>> To: FFmpeg development discussions and patches <ffmpeg-
>> devel at ffmpeg.org>
>> Cc: Eoff, Ullysses A <ullysses.a.eoff at intel.com>
>> Subject: Re: [FFmpeg-devel] [PATCH] avfilter: add rawdump filter
>>
>> On 7/10/19, U. Artie Eoff <ullysses.a.eoff at 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.


> 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
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