[FFmpeg-cvslog] swscale/utils: Improve return codes of sws_setColorspaceDetails()

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Fri Oct 22 23:24:11 2021 +0200| [5f3a160b422e87e17d8fcd3aea51d478d0f05ba5] | committer: Michael Niedermayer

swscale/utils: Improve return codes of sws_setColorspaceDetails()

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5f3a160b422e87e17d8fcd3aea51d478d0f05ba5
---

 libswscale/utils.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libswscale/utils.c b/libswscale/utils.c
index 3752c3ec38..c726922527 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 (c->cascaded_context[0] && memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4))
+            return -1; //AVERROR_PATCHWELCOME;
+        return 0;
     }
 
     if (!isYUV(c->dstFormat) && !isGray(c->dstFormat)) {