lavc: Make hardware config method support more explicit for hwaccels

This fixes the use of old ad-hoc methods which are still supported by some
hwaccels which also support newer methods (DXVA2, VAAPI, VDPAU,
videotoolbox) - without the method being visible here, ff_get_format()
would refuse to use it.
Signed-off-by: Mark Thompson <sw@jkqxz.net>

libavcodec/hwaccel.h

@@ -42,13 +42,14 @@ typedef struct AVCodecHWConfigInternal {
 
 // These macros are used to simplify AVCodecHWConfigInternal definitions.
 
-#define HW_CONFIG_HWACCEL(format, device, name) \
+#define HW_CONFIG_HWACCEL(device, frames, ad_hoc, format, device_type_, name) \
     &(const AVCodecHWConfigInternal) { \
         .public          = { \
             .pix_fmt     = AV_PIX_FMT_ ## format, \
-            .methods     = AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX | \
-                           AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX, \
-            .device_type = AV_HWDEVICE_TYPE_ ## device, \
+            .methods     = (device ? AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX : 0) | \
+                           (frames ? AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX : 0) | \
+                           (ad_hoc ? AV_CODEC_HW_CONFIG_METHOD_AD_HOC        : 0),  \
+            .device_type = AV_HWDEVICE_TYPE_ ## device_type_, \
         }, \
         .hwaccel         = &name, \
     }
@@ -63,32 +64,21 @@ typedef struct AVCodecHWConfigInternal {
         .hwaccel         = NULL, \
     }
 
-#define HW_CONFIG_AD_HOC_HWACCEL(format, name) \
-    &(const AVCodecHWConfigInternal) { \
-        .public =      { \
-            .pix_fmt     = AV_PIX_FMT_ ## format, \
-            .methods     = AV_CODEC_HW_CONFIG_METHOD_AD_HOC, \
-            .device_type = AV_HWDEVICE_TYPE_NONE, \
-        }, \
-        .hwaccel = &name, \
-    }
-
 #define HWACCEL_DXVA2(codec) \
-    HW_CONFIG_HWACCEL(DXVA2_VLD, DXVA2,   ff_ ## codec ## _dxva2_hwaccel)
+    HW_CONFIG_HWACCEL(1, 1, 1, DXVA2_VLD,    DXVA2,        ff_ ## codec ## _dxva2_hwaccel)
 #define HWACCEL_D3D11VA2(codec) \
-    HW_CONFIG_HWACCEL(D3D11,     D3D11VA, ff_ ## codec ## _d3d11va2_hwaccel)
+    HW_CONFIG_HWACCEL(1, 1, 0, D3D11,        D3D11VA,      ff_ ## codec ## _d3d11va2_hwaccel)
 #define HWACCEL_NVDEC(codec) \
-    HW_CONFIG_HWACCEL(CUDA,      CUDA,    ff_ ## codec ## _nvdec_hwaccel)
+    HW_CONFIG_HWACCEL(1, 1, 0, CUDA,         CUDA,         ff_ ## codec ## _nvdec_hwaccel)
 #define HWACCEL_VAAPI(codec) \
-    HW_CONFIG_HWACCEL(VAAPI,     VAAPI,   ff_ ## codec ## _vaapi_hwaccel)
+    HW_CONFIG_HWACCEL(1, 1, 1, VAAPI,        VAAPI,        ff_ ## codec ## _vaapi_hwaccel)
 #define HWACCEL_VDPAU(codec) \
-    HW_CONFIG_HWACCEL(VDPAU,     VDPAU,   ff_ ## codec ## _vdpau_hwaccel)
+    HW_CONFIG_HWACCEL(1, 1, 1, VDPAU,        VDPAU,        ff_ ## codec ## _vdpau_hwaccel)
 #define HWACCEL_VIDEOTOOLBOX(codec) \
-    HW_CONFIG_HWACCEL(VIDEOTOOLBOX, VIDEOTOOLBOX, ff_ ## codec ## _videotoolbox_hwaccel)
-
+    HW_CONFIG_HWACCEL(1, 1, 1, VIDEOTOOLBOX, VIDEOTOOLBOX, ff_ ## codec ## _videotoolbox_hwaccel)
 #define HWACCEL_D3D11VA(codec) \
-    HW_CONFIG_AD_HOC_HWACCEL(D3D11VA_VLD, ff_ ## codec ## _d3d11va_hwaccel)
+    HW_CONFIG_HWACCEL(0, 0, 1, D3D11VA_VLD,  NONE,         ff_ ## codec ## _d3d11va_hwaccel)
 #define HWACCEL_XVMC(codec) \
-    HW_CONFIG_AD_HOC_HWACCEL(XVMC,        ff_ ## codec ## _xvmc_hwaccel)
+    HW_CONFIG_HWACCEL(0, 0, 1, XVMC,         NONE,         ff_ ## codec ## _xvmc_hwaccel)
 
 #endif /* AVCODEC_HWACCEL_H */