Re: [FFmpeg-devel] [PATCH v5] fftools/ffplay: add hwaccel decoding support

[Lynne <dev@lynne.ee>]

Oct 30, 2023, 18:35 by quinkblack@foxmail.com:

>
> On 2023/10/31 01:05, Lynne wrote:
>
>> Oct 30, 2023, 17:05 by quinkblack@foxmail.com:
>>
>>> From: Zhao Zhili <zhilizhao@tencent.com>
>>>
>>> Add vulkan renderer via libplacebo.
>>>
>>> Simple usage:
>>> $ ffplay -hwaccel vulkan foo.mp4
>>>
>>> Use cuda to vulkan map:
>>> $ ffplay -hwaccel cuda foo.mp4
>>>
>>> Create vulkan instance by libplacebo, and enable debug:
>>> $ ffplay -hwaccel vulkan \
>>>  -vulkan_params create_by_placebo=1:debug=1 foo.mp4
>>> ---
>>> v5:
>>>  1. add vulkan_params option.
>>>  2. vulkan instance can be create by hwcontext or libplacebo.
>>>
>>> v4: add more optional extensions
>>> v3: shared vulkan instance between libplacebo and hwcontext
>>>
>> You did it the other way. Instead of creating a device through libplacebo,
>> just create a Vulkan device via the hwcontext, and use it for libplacebo.
>>
>
> I have done both:
>
> 1. create vulkan device by hwcontext and import to placebo
>
> 2. create vulkan device by placebo and pass to hwcontext
>
> It's controlled by -vulkan_params create_by_placebo=1(0). Default is the first behavior.
>
> Did I miss something?
>

Thanks, I overlooked that. Is there a reason for having a setting, and having that as the default?
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