dxva2: Factorize DXVA context validity test into a single macro

Signed-off-by: Diego Biurrun <diego@biurrun.de>

libavcodec/dxva2_h264.c

@@ -445,9 +445,7 @@ static int dxva2_h264_start_frame(AVCodecContext *avctx,
     AVDXVAContext *ctx = avctx->hwaccel_context;
     struct dxva2_picture_context *ctx_pic = h->cur_pic_ptr->hwaccel_picture_private;
 
-    if (DXVA_CONTEXT_DECODER(avctx, ctx) == NULL ||
-        DXVA_CONTEXT_CFG(avctx, ctx) == NULL ||
-        DXVA_CONTEXT_COUNT(avctx, ctx) <= 0)
+    if (!DXVA_CONTEXT_VALID(avctx, ctx))
         return -1;
     assert(ctx_pic);
 

libavcodec/dxva2_hevc.c

@@ -365,9 +365,7 @@ static int dxva2_hevc_start_frame(AVCodecContext *avctx,
     AVDXVAContext *ctx = avctx->hwaccel_context;
     struct hevc_dxva2_picture_context *ctx_pic = h->ref->hwaccel_picture_private;
 
-    if (DXVA_CONTEXT_DECODER(avctx, ctx) == NULL ||
-        DXVA_CONTEXT_CFG(avctx, ctx) == NULL ||
-        DXVA_CONTEXT_COUNT(avctx, ctx) <= 0)
+    if (!DXVA_CONTEXT_VALID(avctx, ctx))
         return -1;
     av_assert0(ctx_pic);
 

libavcodec/dxva2_internal.h

@@ -71,6 +71,9 @@ typedef union {
 #define DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx)  (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD ? ctx->d3d11va.cfg->ConfigBitstreamRaw : ctx->dxva2.cfg->ConfigBitstreamRaw)
 #define DXVA_CONTEXT_CFG_INTRARESID(avctx, ctx) (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD ? ctx->d3d11va.cfg->ConfigIntraResidUnsigned : ctx->dxva2.cfg->ConfigIntraResidUnsigned)
 #define DXVA_CONTEXT_CFG_RESIDACCEL(avctx, ctx) (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD ? ctx->d3d11va.cfg->ConfigResidDiffAccelerator : ctx->dxva2.cfg->ConfigResidDiffAccelerator)
+#define DXVA_CONTEXT_VALID(avctx, ctx)          (DXVA_CONTEXT_DECODER(avctx, ctx) && \
+                                                 DXVA_CONTEXT_CFG(avctx, ctx)     && \
+                                                 DXVA_CONTEXT_COUNT(avctx, ctx))
 #elif CONFIG_DXVA2
 #define DXVA_CONTEXT_WORKAROUND(avctx, ctx)     (ctx->dxva2.workaround)
 #define DXVA_CONTEXT_COUNT(avctx, ctx)          (ctx->dxva2.surface_count)
@@ -80,6 +83,7 @@ typedef union {
 #define DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx)  (ctx->dxva2.cfg->ConfigBitstreamRaw)
 #define DXVA_CONTEXT_CFG_INTRARESID(avctx, ctx) (ctx->dxva2.cfg->ConfigIntraResidUnsigned)
 #define DXVA_CONTEXT_CFG_RESIDACCEL(avctx, ctx) (ctx->dxva2.cfg->ConfigResidDiffAccelerator)
+#define DXVA_CONTEXT_VALID(avctx, ctx)          (ctx->dxva2.decoder && ctx->dxva2.cfg && ctx->dxva2.surface_count)
 #elif CONFIG_D3D11VA
 #define DXVA_CONTEXT_WORKAROUND(avctx, ctx)     (ctx->d3d11va.workaround)
 #define DXVA_CONTEXT_COUNT(avctx, ctx)          (ctx->d3d11va.surface_count)
@@ -89,6 +93,7 @@ typedef union {
 #define DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx)  (ctx->d3d11va.cfg->ConfigBitstreamRaw)
 #define DXVA_CONTEXT_CFG_INTRARESID(avctx, ctx) (ctx->d3d11va.cfg->ConfigIntraResidUnsigned)
 #define DXVA_CONTEXT_CFG_RESIDACCEL(avctx, ctx) (ctx->d3d11va.cfg->ConfigResidDiffAccelerator)
+#define DXVA_CONTEXT_VALID(avctx, ctx)          (ctx->d3d11va.decoder && ctx->d3d11va.cfg && ctx->d3d11va.surface_count)
 #endif
 
 unsigned ff_dxva2_get_surface_index(const AVCodecContext *avctx,

libavcodec/dxva2_mpeg2.c

@@ -263,9 +263,7 @@ static int dxva2_mpeg2_start_frame(AVCodecContext *avctx,
     struct dxva2_picture_context *ctx_pic =
         s->current_picture_ptr->hwaccel_picture_private;
 
-    if (DXVA_CONTEXT_DECODER(avctx, ctx) == NULL ||
-        DXVA_CONTEXT_CFG(avctx, ctx) == NULL ||
-        DXVA_CONTEXT_COUNT(avctx, ctx) <= 0)
+    if (!DXVA_CONTEXT_VALID(avctx, ctx))
         return -1;
     assert(ctx_pic);
 

libavcodec/dxva2_vc1.c

@@ -264,9 +264,7 @@ static int dxva2_vc1_start_frame(AVCodecContext *avctx,
     AVDXVAContext *ctx = avctx->hwaccel_context;
     struct dxva2_picture_context *ctx_pic = v->s.current_picture_ptr->hwaccel_picture_private;
 
-    if (DXVA_CONTEXT_DECODER(avctx, ctx) == NULL ||
-        DXVA_CONTEXT_CFG(avctx, ctx) == NULL ||
-        DXVA_CONTEXT_COUNT(avctx, ctx) <= 0)
+    if (!DXVA_CONTEXT_VALID(avctx, ctx))
         return -1;
     assert(ctx_pic);