avdevice/decklink_common: properly check DoesSupportVideoMode result when trying...

Signed-off-by: Marton Balint <cus@passwd.hu>

diff --git a/libavdevice/decklink_common.cpp b/libavdevice/decklink_common.cpp
index d3cc1eb3d16f16a3a0aa965c80913eda60fc05b1..3902311edd0d734292dd21b547f195ba9b655a22 100644 (file)
--- a/libavdevice/decklink_common.cpp
+++ b/libavdevice/decklink_common.cpp
@@ -256,7 +256,7 @@ int ff_decklink_set_format(AVFormatContext *avctx,
     } else {
         if (!ctx->supports_vanc || ctx->dlo->DoesSupportVideoMode(ctx->bmd_mode, ctx->raw_format,
                                                                   bmdVideoOutputVANC,
-                                                                  &support, NULL) != S_OK) {
+                                                                  &support, NULL) != S_OK || support != bmdDisplayModeSupported) {
             /* Try without VANC enabled */
             if (ctx->dlo->DoesSupportVideoMode(ctx->bmd_mode, ctx->raw_format,
                                                bmdVideoOutputFlagDefault,