[FFmpeg-devel] Fw: [PATCH] ZMBV fix for paletted modes

[Michael Niedermayer]

see https://sourceforge.net/tracker/index.php?func=detail&aid=1507071&group_id=16082&atid=116082

"Hey, there's this discussion in the DOSBox world since
the ZMBV video capture was added to it...

It's about the ZMBV compressed videos using a palette.
Right now the ZMBV DOSBox uses and the one implemented
in libavcodec are different... RGB vs. BGR. I've
looked for files on the internet and I couldn't find
many captured videos in paletted mode, but the ones I
did find work fine with the DOSBox ZMBV, but not with
the one in libavcodec. I'm attaching a patch that
fixes this issue in libavcodec so that it works
consistently with the other files around the Internet."


-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

No snowflake in an avalanche ever feels responsible. -- Voltaire
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--- old/libavcodec/zmbv.c	2006-06-15 22:12:34.328125000 -0500
+++ new/libavcodec/zmbv.c	2006-06-15 23:28:15.625000000 -0500
@@ -532,9 +532,9 @@
         case ZMBV_FMT_8BPP:
             for(j = 0; j < c->height; j++) {
                 for(i = 0; i < c->width; i++) {
-                    out[i * 3 + 0] = c->pal[(*src) * 3 + 0];
+                    out[i * 3 + 2] = c->pal[(*src) * 3 + 0];
                     out[i * 3 + 1] = c->pal[(*src) * 3 + 1];
-                    out[i * 3 + 2] = c->pal[(*src) * 3 + 2];
+                    out[i * 3 + 0] = c->pal[(*src) * 3 + 2];
                     *src++;
                 }
                 out += c->pic.linesize[0];
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