I’ve tested and confirmed to work, and `reverse=1` also works for chaining to
other videotoolbox filters.
> On Feb 23, 2024, at 22:25, Zhao Zhili wrote:
>
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> 在 2024年2月23日，上午9:20，Zhao Zhili 写道：
>
>
>> 在 2024年2月23日，上午4:19，Gnattu OC via ffmpeg-devel 写道：
>>
>> Actually, if you examine the `hwcontext_videotoolbox.c` file, you will find
>> that the current function for `vt_device_create` is essentially a no-op: it
>> only returns an error if a
> 在 2024年2月23日，上午4:19，Gnattu OC via ffmpeg-devel 写道：
>
> Actually, if you examine the `hwcontext_videotoolbox.c` file, you will find
> that the current function for `vt_device_create` is essentially a no-op: it
> only returns an error if a user attempts to select a device, otherwise it
>
Actually, if you examine the `hwcontext_videotoolbox.c` file, you will find
that the current function for `vt_device_create` is essentially a no-op: it
only returns an error if a user attempts to select a device, otherwise it just
returns. This is generally how VideoToolbox works. If the
On 22/02/2024 19:39, ChenLiucheng via ffmpeg-devel wrote:
On Feb 23, 2024, at 03:28, Mark Thompson wrote:
On 22/02/2024 18:46, gnattu via ffmpeg-devel wrote:
There is no device context to be setup, nor devices to be
selected with VideoToolbox. Just a simple return would allow
us to use
Well this does make sense.
If only one type of hardware device is in use, then `-init_hw_device` will
suffice. However, if we use hardware filters with different device types, such
as OpenCL, and we want to switch to a VideoToolbox filter later in the chain,
we will have a issue. Since there
On 22/02/2024 18:46, gnattu via ffmpeg-devel wrote:
There is no device context to be setup, nor devices to be
selected with VideoToolbox. Just a simple return would allow
us to use derived device in filters like
`hwupload=derive_device=videotoolbox`
Signed-off-by: Gnattu OC
---
There is no device context to be setup, nor devices to be
selected with VideoToolbox. Just a simple return would allow
us to use derived device in filters like
`hwupload=derive_device=videotoolbox`
Signed-off-by: Gnattu OC
---
libavutil/hwcontext_videotoolbox.c | 9 +
1 file changed, 9
