Created attachment 145311 [details]
Sample C code to reproduce error

Operating System: archlinux 5.2.13-arch1-1-ARCH
GPU: Radeon RX 570
Mesa version: 19.1.6
Libva version: 2.5.0

vaDeriveImage() VAAPI returns VA_STATUS_ERROR_OPERATION_FAILED when radeonsi_drv_video.so used as driver. It runs successfully with i965_drv_video.so on intel integrated GPU.

https://bugs.freedesktop.org/show_bug.cgi?id=110850 related to this.

I found by debugging that error return occurs in the vlVaDeriveImage function.
//vlVaDeriveImage function is in src/gallium/state_trackers/va/image.c
if (surf->buffer->interlaced)
     return VA_STATUS_ERROR_OPERATION_FAILED;

Is there a problem with interlaced video in Mesa? I don't know much about computer graphics and how Mesa works, but Intel driver has no problem about it, so I think it's a bug.

Sample C code attached to reproduce error. This code was written by referring to the VLC's VAAPI source code. Compile command: gcc -o va va.c -lX11 -lva -lva-x11 -g

Result on Radeon GPU system:
libva info: VA-API version 1.5.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/radeonsi_drv_video.so
libva info: Found init function __vaDriverInit_1_5
libva info: va_openDriver() returns 0
vendor string : Mesa Gallium driver 19.1.6 for Radeon RX 570 Series (POLARIS10, DRM 3.32.0, 5.2.13-arch1-1-ARCH, LLVM 8.0.1)
vaDeriveImage error : operation failed

Result on Intel GPU system:
libva info: VA-API version 1.5.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_1_3
libva info: va_openDriver() returns 0
vendor string : Intel i965 driver for Intel(R) Broadwell - 2.3.0

vaDeriveImage : success (no error)