@@ -830,8 +830,6 @@ int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4],

     const AVPixFmtDescriptor *desc_dst;

     const AVPixFmtDescriptor *desc_src;

     int need_reinit = 0;

-    memmove(c->srcColorspaceTable, inv_table, sizeof(int) * 4);

-    memmove(c->dstColorspaceTable, table, sizeof(int) * 4);

     handle_formats(c);

     desc_dst = av_pix_fmt_desc_get(c->dstFormat);

@@ -842,11 +840,24 @@ int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4],

     if(!isYUV(c->srcFormat) && !isGray(c->srcFormat))

         srcRange = 0;

+    if (c->srcRange != srcRange ||

+        c->dstRange != dstRange ||

+        c->brightness != brightness ||

+        c->contrast   != contrast ||

+        c->saturation != saturation ||

+        memcmp(c->srcColorspaceTable, inv_table, sizeof(int) * 4) ||

+        memcmp(c->dstColorspaceTable,     table, sizeof(int) * 4)

+    )

+        need_reinit = 1;

+

+    memmove(c->srcColorspaceTable, inv_table, sizeof(int) * 4);

+    memmove(c->dstColorspaceTable, table, sizeof(int) * 4);

+

+

+

     c->brightness = brightness;

     c->contrast   = contrast;

     c->saturation = saturation;

-    if (c->srcRange != srcRange || c->dstRange != dstRange)

-        need_reinit = 1;

     c->srcRange   = srcRange;

     c->dstRange   = dstRange;

@@ -861,6 +872,9 @@ int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4],

     if (c->cascaded_context[0])

         return sws_setColorspaceDetails(c->cascaded_context[0],inv_table, srcRange,table, dstRange, brightness,  contrast, saturation);

+    if (!need_reinit)

+        return 0;

+

     if ((isYUV(c->dstFormat) || isGray(c->dstFormat)) && (isYUV(c->srcFormat) || isGray(c->srcFormat))) {

         if (!c->cascaded_context[0] &&

             memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4) &&