From: Manuel Lauss via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>
To: ffmpeg-devel@ffmpeg.org
Cc: Manuel Lauss <code@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH] avcodec/sanm: handle xpal cmd 0 (PR #20300)
Date: Thu, 21 Aug 2025 10:46:53 +0300 (EEST)
Message-ID: <20250821074653.D732868D164@ffbox0-bg.ffmpeg.org> (raw)
PR #20300 opened by Manuel Lauss (mlauss2)
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20300
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20300.patch
It's like cmd 2. Fixes the Rebel Assault 1 Intro Video "C1BLOCK.ANM"
crossfade from planet view to space view and subsequent wrong colors.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
From 4012c92c9b05b26df88c31f1497033a81ea73025 Mon Sep 17 00:00:00 2001
From: Manuel Lauss <manuel.lauss@gmail.com>
Date: Thu, 21 Aug 2025 09:44:25 +0200
Subject: [PATCH] avcodec/sanm: handle xpal cmd 0
It's like cmd 2. Fixes the Rebel Assault 1 Intro Video "C1BLOCK.ANM"
crossfade from planet view to space view and subsequent wrong colors.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
---
libavcodec/sanm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/sanm.c b/libavcodec/sanm.c
index e4308af647..4cf1ac5221 100644
--- a/libavcodec/sanm.c
+++ b/libavcodec/sanm.c
@@ -1888,7 +1888,7 @@ static int process_xpal(SANMVideoContext *ctx, int size)
}
*pal++ = 0xFFU << 24 | c[0] << 16 | c[1] << 8 | c[2];
}
- } else if (cmd == 2) {
+ } else if (cmd == 0 || cmd == 2) {
if (size < PALETTE_DELTA * 2 + 4) {
av_log(ctx->avctx, AV_LOG_ERROR,
"Incorrect palette change block size %"PRIu32".\n", size);
--
2.49.1
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