[FFmpeg-devel] [PATCH] avfilter: add v360_vulkan filter

[Lynne]

Jun 26, 2020, 19:05 by jamrial at gmail.com:

> On 6/26/2020 1:58 PM, Paul B Mahol wrote:
>
>> On 6/26/20, James Almer <jamrial at gmail.com> wrote:
>>
>>> On 6/26/2020 1:13 PM, Paul B Mahol wrote:
>>>
>>>> On 6/26/20, Paul B Mahol <onemda at gmail.com> wrote:
>>>>
>>>>> On 6/24/20, Paul B Mahol <onemda at gmail.com> wrote:
>>>>>
>>>>>> Signed-off-by: Paul B Mahol <onemda at gmail.com>
>>>>>> ---
>>>>>> Please test it and reports benchmark results on non toyish GPUs.
>>>>>>
>>>>>
>>>>> Please, I really need it!
>>>>>
>>>>
>>>>
>>>> Why nobody wants to help?
>>>>
>>>> This makes me really really sad.
>>>>
>>>
>>> I can try. Can you give an example command line with a publicly
>>> available sample?
>>>
>>
>> You can use any sample, samples are irrelevant. just report resolution used.
>> Also compare with CPU solution with just v360 filter.
>>
>> For yuv420p inputs:
>>
>> ffmpeg -init_hw_device vulkan=vulkan -i INPUT -filter_hw_device vulkan
>> -vf hwupload,v360_vulkan=fisheye:e:ih_fov=180:iv_fov=180:w=2048:h=1024,hwdownload,format=yuv420p
>> -f null -
>>
>> ffmpeg -i INPUT -vf v360=fisheye:e:ih_fov=180:iv_fov=180:w=2048:h=1024 -f null -
>>
>> Just make sure that you get same output resolution in both cases. If
>> not, adjust w/h accordingly.
>>
>
> I'm getting a segfault on vkGetInstanceProcAddr, and i don't know if
> it's your filter or some issue in the driver. gdb is not being helpful.
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Can you test again but replace EXT_EXTERNAL_HOST_MEMORY in optional_device_exts
with EXT_NO_FLAG?