[FFmpeg-devel] [PATCH] vulkan_decode: support software-defined decoders

[Lynne]

On 18/12/2024 20:13, Anton Khirnov wrote:
> Quoting Lynne via ffmpeg-devel (2024-12-18 10:07:51)
>> vulkan_decode: support software-defined decoders
>> ---
>>   libavcodec/vulkan_decode.c | 118 +++++++++++++++++++++++--------------
>>   libavcodec/vulkan_decode.h |   8 +++
>>   2 files changed, 83 insertions(+), 43 deletions(-)
> 
> This could really use some more explanation.

Forgot to write the commit message. Amended with the following:

 > This commit allows the existing decode infrastructure to be used by
 > non-native Vulkan hwaccels, such as purely compute-based
 > implementations, or hybrid CPU-GPU implementations.
 > Using the existing infrastructure allows to deduplicate large chunks
 > of management, initialization, and thread context synchronization
 > code.

The code using it is still largely untested, so it may change with the 
next version I post, but nothing major - this mostly if()s out any 
native Vulkan decode calls from init.
Posting this because the changes to frame_params+init were too obtrusive 
to rebase this piece of code on top.
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