[FFmpeg-devel] [PATCH 08/14] avcodec: add AV_HWACCEL_FLAG_ALLOW_SOFTWARE

[Jun Zhao]

On 2017/12/15 15:03, wbsecg1 at gmail.com wrote:
> From: wang-bin <wbsecg1 at gmail.com>
>
> a hw decoder may have software or hybrid implementation, for example videotoolbox hevc.
> the performance may be better than ffmpeg sw decoder.
It's confused, and I think wm4 give a other patch for this case. you can
refer to
https://patchwork.ffmpeg.org/patch/6773/

> ---
>  libavcodec/avcodec.h | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
> index ce089b7c4a..6d1f5ee532 100644
> --- a/libavcodec/avcodec.h
> +++ b/libavcodec/avcodec.h
> @@ -3725,6 +3725,10 @@ typedef struct AVHWAccel {
>   */
>  #define AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH (1 << 2)
>  
> +/**
> + * Hardware acceleration can use it's software implementation.
> + */
> +#define AV_HWACCEL_FLAG_ALLOW_SOFTWARE (1 << 3)
>  /**
>   * @}
>   */