kdapig.blogg.se - How to use ffmpeg to encode videos with hsv colorspace

Repeat_sequence_header 0x009909e2 (bool) : default=0 value=0 Video_bitrate_mode 0x009909ce (menu) : min=0 max=1 default=0 value=0 flags=update Selection: crop_bounds, Left 0, Top 0, Width 640, Height 480 Selection: crop_default, Left 0, Top 0, Width 640, Height 480

Selection: crop, Left 0, Top 0, Width 640, Height 480 Selection: compose_bounds, Left 0, Top 0, Width 640, Height 480 Selection: compose_default, Left 0, Top 0, Width 640, Height 480 Selection: compose, Left 0, Top 0, Width 640, Height 480 Quantization : Default (maps to Full Range) Quantization : Default (maps to Limited Range) YCbCr/HSV Encoding: Default (maps to Rec. Transfer Function : Default (maps to Rec. The camera interface itself appears to function fine, I can do things like: h264) source somewhere I can try to verify if the m2m stuff is working properly? Do I have to set up some other init of the /dev/video1x interfaces to make them usable? Is there a simple ffmpeg incantation on a known (e.g.

Would you expect the v4l2 m2m endpoints to operate correctly with a 64-bit userland? I have ffmpeg 4.1.1 compiled with the v4l extensions, but am getting segfaults every time I try to use h264_v4l2m2m.

I am current specifying "dtoverlay=vc4-kms-v3d,cma-256" and "gpu_mem=16" in /boot/config.txt are those sensible settings? When the v4l2 camera or v4l2 m2m codecs interfaces are in use, does gpu_mem need to be increased or is this irrelevant?.

if I just want m2m and have no camera module attached, I still need to use start_x=1?

To get the camera interfaces to appear, I need to set "start_x=1" in /boot/config.txt, and this is true even for the m2m interfaces is my understanding on that correct? I.e.

But to be honest I am stumbling around with some of this, so I would really appreciate a few pointers on the following:

Some v4l2 m2m codecs also appear (/dev/video10 etc.). I'm finalizing a release of my gentoo-on-rpi3-64bit image, which given recent stabilizations I've decided will now be shipping with a 4.19.y kernel (rather than 4.14.y, which was the original plan).Īmongst other things, this allows the use of the pi camera module v2 in a full 64-bit system via /dev/video0, which is nice.