@@ -911,6 +911,25 @@ static av_always_inline int isDataInHighBits(enum AVPixelFormat pix_fmt)
return 1;
}
+/*
+ * Identity formats where the chroma planes are swapped (CrCb order).
+ */
+static av_always_inline int isSwappedChroma(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ av_assert0(desc);
+ if (!isYUV(pix_fmt))
+ return 0;
+ if ((desc->flags & AV_PIX_FMT_FLAG_ALPHA) && desc->nb_components < 4)
+ return 0;
+ if (desc->nb_components < 3)
+ return 0;
+ if (!isPlanarYUV(pix_fmt) || isSemiPlanarYUV(pix_fmt))
+ return desc->comp[1].offset > desc->comp[2].offset;
+ else
+ return desc->comp[1].plane > desc->comp[2].plane;
+}
+
extern const uint64_t ff_dither4[2];
extern const uint64_t ff_dither8[2];
@@ -46,6 +46,7 @@ static const struct {
{"PlanarRGB", isPlanarRGB},
{"usePal", usePal},
{"DataInHighBits", isDataInHighBits},
+ {"SwappedChroma", isSwappedChroma},
};
static int cmp_str(const void *a, const void *b)
@@ -964,3 +964,8 @@ DataInHighBits:
y210be
y210le
+SwappedChroma:
+ nv21
+ nv42
+ yvyu422
+