avcodec/nvenc: use switch for nvenc_copy_frame

libavcodec/nvenc.c

@@ -1292,7 +1292,8 @@ static int nvenc_copy_frame(AVCodecContext *avctx, NvencSurface *inSurf,
     uint8_t *buf = lockBufferParams->bufferDataPtr;
     int off = inSurf->height * lockBufferParams->pitch;
 
-    if (frame->format == AV_PIX_FMT_YUV420P) {
+    switch (frame->format) {
+    case AV_PIX_FMT_YUV420P:
         av_image_copy_plane(buf, lockBufferParams->pitch,
             frame->data[0], frame->linesize[0],
             avctx->width, avctx->height);
@@ -1308,7 +1309,8 @@ static int nvenc_copy_frame(AVCodecContext *avctx, NvencSurface *inSurf,
         av_image_copy_plane(buf, lockBufferParams->pitch >> 1,
             frame->data[1], frame->linesize[1],
             avctx->width >> 1, avctx->height >> 1);
-    } else if (frame->format == AV_PIX_FMT_NV12) {
+        break;
+    case AV_PIX_FMT_NV12:
         av_image_copy_plane(buf, lockBufferParams->pitch,
             frame->data[0], frame->linesize[0],
             avctx->width, avctx->height);
@@ -1318,7 +1320,8 @@ static int nvenc_copy_frame(AVCodecContext *avctx, NvencSurface *inSurf,
         av_image_copy_plane(buf, lockBufferParams->pitch,
             frame->data[1], frame->linesize[1],
             avctx->width, avctx->height >> 1);
-    } else if (frame->format == AV_PIX_FMT_P010) {
+        break;
+    case AV_PIX_FMT_P010:
         av_image_copy_plane(buf, lockBufferParams->pitch,
             frame->data[0], frame->linesize[0],
             avctx->width << 1, avctx->height);
@@ -1328,7 +1331,8 @@ static int nvenc_copy_frame(AVCodecContext *avctx, NvencSurface *inSurf,
         av_image_copy_plane(buf, lockBufferParams->pitch,
             frame->data[1], frame->linesize[1],
             avctx->width << 1, avctx->height >> 1);
-    } else if (frame->format == AV_PIX_FMT_YUV444P) {
+        break;
+    case AV_PIX_FMT_YUV444P:
         av_image_copy_plane(buf, lockBufferParams->pitch,
             frame->data[0], frame->linesize[0],
             avctx->width, avctx->height);
@@ -1344,7 +1348,8 @@ static int nvenc_copy_frame(AVCodecContext *avctx, NvencSurface *inSurf,
         av_image_copy_plane(buf, lockBufferParams->pitch,
             frame->data[2], frame->linesize[2],
             avctx->width, avctx->height);
-    } else if (frame->format == AV_PIX_FMT_YUV444P16) {
+        break;
+    case AV_PIX_FMT_YUV444P16:
         av_image_copy_plane(buf, lockBufferParams->pitch,
             frame->data[0], frame->linesize[0],
             avctx->width << 1, avctx->height);
@@ -1360,11 +1365,14 @@ static int nvenc_copy_frame(AVCodecContext *avctx, NvencSurface *inSurf,
         av_image_copy_plane(buf, lockBufferParams->pitch,
             frame->data[2], frame->linesize[2],
             avctx->width << 1, avctx->height);
-    } else if (frame->format == AV_PIX_FMT_0RGB32 || frame->format == AV_PIX_FMT_0BGR32) {
+        break;
+    case AV_PIX_FMT_0RGB32:
+    case AV_PIX_FMT_0BGR32:
         av_image_copy_plane(buf, lockBufferParams->pitch,
             frame->data[0], frame->linesize[0],
             avctx->width << 2, avctx->height);
-    } else {
+        break;
+    default:
         av_log(avctx, AV_LOG_FATAL, "Invalid pixel format!\n");
         return AVERROR(EINVAL);
     }