On 09/07/2024 08:57, Anton Khirnov wrote:
Quoting Lynne via ffmpeg-devel (2024-07-09 03:07:12)@@ -151,6 +162,17 @@ typedef struct AVVulkanDeviceContext { * Similar to lock_queue(), unlocks a queue. Must only be called after locking. */ void (*unlock_queue)(struct AVHWDeviceContext *ctx, uint32_t queue_family, uint32_t index); + + /** + * Queue families used. Must be preferentially ordered. List may contain + * duplicates, as long as their capability flags do not match. + * + * For compatibility reasons, all the enabled queue families listed above + * (queue_family_(tx/comp/encode/decode)_index) must also be included in + * this list until they're removed after deprecation. + */ + AVVulkanDeviceQueueFamily qf[16];Why 16? And are we really really sure sizeof(AVVulkanDeviceQueueFamily) should be a part of the ABI?
16 is just an arbitrary limit. I don't expect to need more than this ever, but if we do, its not something that we can't wait until a bump occurs.
I can increase it to 32 if you're concerned about it.There are 6 total queue family types, and 6 more currently supported encode and decode operations for each queue -> 12.
I'd like to avoid making this not a part of the ABI, particularly as its a context that users should be able to easily set themselves.
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