[libcamera-devel] [PATCH] libcamera: stream: Document stride will be 0 for compressed formats

[Nicolas Dufresne]

Le mardi 22 août 2023 à 18:49 +0530, Umang Jain via libcamera-devel a écrit :
> For compressed formats, v4l2_pix_format.bytesperline value will be zero
> and is documented similarly in the kernel. Since we set the stride to
> v4l2_pix_format.bytesperline, document the case where it is expected
> to be zero (i.e. if the format is compressed).
> 
> Signed-off-by: Umang Jain <umang.jain at ideasonboard.com>

Reviewed-by: Nicolas Dufresne <nicolas.dufresne at collabora.com>

> ---
>  src/libcamera/stream.cpp | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/src/libcamera/stream.cpp b/src/libcamera/stream.cpp
> index 272222b7..f3e00ead 100644
> --- a/src/libcamera/stream.cpp
> +++ b/src/libcamera/stream.cpp
> @@ -311,7 +311,8 @@ StreamConfiguration::StreamConfiguration(const StreamFormats &formats)
>   * The stride value reports the number of bytes between the beginning of
>   * successive lines in an image buffer for this stream. The value is
>   * valid after successfully validating the configuration with a call to
> - * CameraConfiguration::validate().
> + * CameraConfiguration::validate(). For compressed formats (such as MJPEG),
> + * this value will be zero.
>   */
>  
>  /**