[FFmpeg-devel] [PATCH 2/2] swscale/utils: Improve return codes of sws_setColorspaceDetails()

[Michael Niedermayer]

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libswscale/utils.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libswscale/utils.c b/libswscale/utils.c
index 3752c3ec38c..632f6fd4648 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -995,7 +995,10 @@ int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4],
                                      0, 1 << 16, 1 << 16);
             return 0;
         }
-        return -1;
+        //We do not support this combination currently, we need to cascade more contexts to compensate
+        if (memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4))
+            return AVERROR_PATCHWELCOME;
+        return 0;
     }
 
     if (!isYUV(c->dstFormat) && !isGray(c->dstFormat)) {
-- 
2.17.1