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-rw-r--r--libswscale/swscale_internal.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index cf157428b3..cdf3754d14 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -273,6 +273,13 @@ const char *sws_format_name(int format);
|| (x)==PIX_FMT_MONOBLACK \
|| (x)==PIX_FMT_MONOWHITE \
)
+#define isALPHA(x) ( \
+ (x)==PIX_FMT_BGR32 \
+ || (x)==PIX_FMT_BGR32_1 \
+ || (x)==PIX_FMT_RGB32 \
+ || (x)==PIX_FMT_RGB32_1 \
+ || (x)==PIX_FMT_YUVA420P \
+ )
static inline int fmt_depth(int fmt)
{