From 63ea1660fa06d30c3bcbad68373a6caf88ac9c4c Mon Sep 17 00:00:00 2001 From: Peter Ross Date: Sat, 8 Jun 2024 18:39:10 +1000 Subject: [PATCH] avcodec/mm: decode partial palette --- libavcodec/mmvideo.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/libavcodec/mmvideo.c b/libavcodec/mmvideo.c index 3038d9ea92..933d895f96 100644 --- a/libavcodec/mmvideo.c +++ b/libavcodec/mmvideo.c @@ -78,13 +78,10 @@ static av_cold int mm_decode_init(AVCodecContext *avctx) static void mm_decode_pal(MmContext *s) { - int i; - - bytestream2_skip(&s->gb, 4); - for (i = 0; i < 128; i++) { - s->palette[i] = 0xFFU << 24 | bytestream2_get_be24(&s->gb); - s->palette[i+128] = s->palette[i]<<2; - } + int start = bytestream2_get_le16(&s->gb); + int count = bytestream2_get_le16(&s->gb); + for (int i = 0; i < count; i++) + s->palette[start+i] = 0xFFU << 24 | (bytestream2_get_be24(&s->gb) << 2); } /**