[FFmpeg-devel] [Uncompressed MP4] RFC - Draft Encoder

[Devon Sookhoo]

This updated patch registers the 'uncv' tag in the isom_tags.c
ff_codec_movvideo_tags[] list. However, I still need to specify the tag
with the "-tag:v uncv" option. I hoped this change would set 'uncv' as the
default tag for raw mp4 video, but I'm not sure what the issue is.

I'm also looking into passing FATE and adding additional test cases to
cover this new code. The documentation is helpful, but there's still a
steep learning curve to get all this put together.

Any help would be greatly appreciated.

On Sat, Oct 12, 2024 at 1:59 AM Tomas Härdin <git at haerdin.se> wrote:

> ons 2024-10-09 klockan 20:08 -0600 skrev Devon Sookhoo:
> > Sounds good, I'll look into adding rawvideo to the list of
> > movcodec_tags.
> >
> > Looking at the AVPixFmtDescriptor, I noticed: AVComponentDescriptor
> > comp[4]; Does this line limit the component count to only four?
> > Encoding
> > video with many components is an important use case.
>
> I am aware of no pixel format with more than 4 components so probably.
> I've never seen hyperspectral imagery used in this project. I've worked
> with it before though
>
> > Complex pixels are used in applications that involve both amplitude
> > and
> > phase information, particularly in signal processing and imaging
> > techniques
> > where the Fourier transform is frequently applied. Examples include
> > Synthetic Aperture Radar (SAR), MRI scans, and radio astronomy.
>
> Yep, suspected as much
>
> /Tomas
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