[FFmpeg-user] ffv1_vulkan issues

[BuyMyMojo]

I have been trying to get ffv1_vulkan to encode since it was first added.


My machine is running Arch Linux, a 7800XT using Mesa drivers and at 
time of testing/writing "ffmpeg version N-118193-g5f38c82536"


Currently when running a basic encode I get a hand full of errors:

`ffmpeg -hwaccel vulkan -hwaccel_output_format vulkan -i x264-video.mp4 
-c:v ffv1_vulkan test.avi`

I get this output:

```

[ffv1_vulkan @ 0x5c6e5c559a80] format nv12 not supported
[vost#0:0/ffv1_vulkan @ 0x5c6e5c5ca700] [enc:ffv1_vulkan @ 
0x5c6e5c5565c0] Error while opening encoder - maybe incorrect parameters 
such as bit_rate, rate, width or height.
[vf#0:0 @ 0x5c6e5c559e40] Error sending frames to consumers: Function 
not implemented
[vf#0:0 @ 0x5c6e5c559e40] Task finished with error code: -38 (Function 
not implemented)
[vf#0:0 @ 0x5c6e5c559e40] Terminating thread with return code -38 
(Function not implemented)
[vost#0:0/ffv1_vulkan @ 0x5c6e5c5ca700] [enc:ffv1_vulkan @ 
0x5c6e5c5565c0] Could not open encoder before EOF
[vost#0:0/ffv1_vulkan @ 0x5c6e5c5ca700] Task finished with error code: 
-22 (Invalid argument)
[vost#0:0/ffv1_vulkan @ 0x5c6e5c5ca700] Terminating thread with return 
code -22 (Invalid argument)
[out#0/avi @ 0x5c6e5c55aa40] Nothing was written into output file, 
because at least one of its streams received no packets.

```


if I try it as `ffmpeg -init_hw_device vulkan=vk:0 -filter_hw_device vk 
-i x264-video.mp4 -c:v ffv1_vulkan test.avi` then I get a second kind of 
error:

```

Impossible to convert between the formats supported by the filter 
'Parsed_null_0' and the filter 'auto_scale_0'
[vf#0:0 @ 0x58c7e1705d80] Error reinitializing filters!
[vf#0:0 @ 0x58c7e1705d80] Task finished with error code: -38 (Function 
not implemented)
[vf#0:0 @ 0x58c7e1705d80] Terminating thread with return code -38 
(Function not implemented)
[vost#0:0/ffv1_vulkan @ 0x58c7e16a8b80] [enc:ffv1_vulkan @ 
0x58c7e17a8d00] Could not open encoder before EOF
[vost#0:0/ffv1_vulkan @ 0x58c7e16a8b80] Task finished with error code: 
-22 (Invalid argument)
[vost#0:0/ffv1_vulkan @ 0x58c7e16a8b80] Terminating thread with return 
code -22 (Invalid argument)
[out#0/avi @ 0x58c7e16a7f40] Nothing was written into output file, 
because at least one of its streams received no packets.

```

if I use both `-init_hw_device vulkan=vk:0 -filter_hw_device vk` and 
`-hwaccel vulkan -hwaccel_output_format vulkan` together I get the first 
error again,

and finally trying to add `-vf "hwmap=derive_device=vulkan"` I get this 
final error:


```

[Parsed_hwmap_0 @ 0x7ff2c8004c40] Failed to map frame: -38.
[vf#0:0 @ 0x5d5327742040] Error while filtering: Function not implemented
[vf#0:0 @ 0x5d5327742040] Task finished with error code: -38 (Function 
not implemented)
[vf#0:0 @ 0x5d5327742040] Terminating thread with return code -38 
(Function not implemented)
[vost#0:0/ffv1_vulkan @ 0x5d53278b9440] [enc:ffv1_vulkan @ 
0x5d53277ef2c0] Could not open encoder before EOF
[vost#0:0/ffv1_vulkan @ 0x5d53278b9440] Task finished with error code: 
-22 (Invalid argument)
[vost#0:0/ffv1_vulkan @ 0x5d53278b9440] Terminating thread with return 
code -22 (Invalid argument)
[out#0/avi @ 0x5d53278f6fc0] Nothing was written into output file, 
because at least one of its streams received no packets.

```


Can I get some guidance on getting this to work, I am at a loss