[FFmpeg-devel] [PATCH v3 1/4] lavu/hwcontext_opecl: fix the build warning

[Mark Thompson]

On 03/06/18 04:15, Jun Zhao wrote:
> fix the build warning when use Portable Computing Language (pocl).
> 
> Signed-off-by: Jun Zhao <mypopydev at gmail.com>
> ---
>  libavutil/hwcontext_opencl.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/libavutil/hwcontext_opencl.c b/libavutil/hwcontext_opencl.c
> index 43b5c5a..9ecc361 100644
> --- a/libavutil/hwcontext_opencl.c
> +++ b/libavutil/hwcontext_opencl.c
> @@ -2809,7 +2809,11 @@ static int opencl_map_from(AVHWFramesContext *hwfc, AVFrame *dst,
>  static int opencl_map_to(AVHWFramesContext *hwfc, AVFrame *dst,
>                           const AVFrame *src, int flags)
>  {
> +#if HAVE_OPENCL_DRM_BEIGNET || HAVE_OPENCL_VAAPI_BEIGNET || \
> +    HAVE_OPENCL_VAAPI_INTEL_MEDIA || HAVE_OPENCL_DXVA2 || \
> +    HAVE_OPENCL_D3D11 || HAVE_OPENCL_DRM_ARM
>      OpenCLDeviceContext *priv = hwfc->device_ctx->internal->priv;
> +#endif
>      av_assert0(dst->format == AV_PIX_FMT_OPENCL);
>      switch (src->format) {
>  #if HAVE_OPENCL_DRM_BEIGNET
> @@ -2850,7 +2854,11 @@ static int opencl_map_to(AVHWFramesContext *hwfc, AVFrame *dst,
>  static int opencl_frames_derive_to(AVHWFramesContext *dst_fc,
>                                     AVHWFramesContext *src_fc, int flags)
>  {
> +#if HAVE_OPENCL_DRM_BEIGNET || HAVE_OPENCL_VAAPI_BEIGNET || \
> +    HAVE_OPENCL_VAAPI_INTEL_MEDIA || HAVE_OPENCL_DXVA2 || \
> +    HAVE_OPENCL_D3D11 || HAVE_OPENCL_DRM_ARM
>      OpenCLDeviceContext *priv = dst_fc->device_ctx->internal->priv;
> +#endif
>      switch (src_fc->device_ctx->type) {
>  #if HAVE_OPENCL_DRM_BEIGNET
>      case AV_HWDEVICE_TYPE_DRM:
> 

The condition is horrible and would need to be changed on any addition.  Just mark the variables unused instead.

- Mark