ffmpeg | branch: master | Manuel Lauss <manuel.la...@gmail.com> | Fri Nov 8 12:51:14 2024 +0100| [dc98e7989d81fce8201af83dd9bc6e4ef7bea227] | committer: Anton Khirnov
libavcodec/sanm: clear codec47 diff buffers with specific color The codec47 header provides colors to use to clear the 2 difference buffers. This fixes artifacts (black hair, faces) in Curse of Monkey Island "CURSERNG.SAN" video. Signed-off-by: Manuel Lauss <manuel.la...@gmail.com> Signed-off-by: Anton Khirnov <an...@khirnov.net> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=dc98e7989d81fce8201af83dd9bc6e4ef7bea227 --- libavcodec/sanm.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/libavcodec/sanm.c b/libavcodec/sanm.c index 936746ace4..fcf6234d8a 100644 --- a/libavcodec/sanm.c +++ b/libavcodec/sanm.c @@ -915,13 +915,16 @@ static int old_codec47(SANMVideoContext *ctx, int top, uint8_t *dst = (uint8_t *)ctx->frm0 + left + top * stride; uint8_t *prev1 = (uint8_t *)ctx->frm1; uint8_t *prev2 = (uint8_t *)ctx->frm2; + uint8_t auxcol[2]; int tbl_pos = bytestream2_tell(&ctx->gb); int seq = bytestream2_get_le16(&ctx->gb); int compr = bytestream2_get_byte(&ctx->gb); int new_rot = bytestream2_get_byte(&ctx->gb); int skip = bytestream2_get_byte(&ctx->gb); - bytestream2_skip(&ctx->gb, 9); + bytestream2_skip(&ctx->gb, 7); + auxcol[0] = bytestream2_get_byteu(&ctx->gb); + auxcol[1] = bytestream2_get_byteu(&ctx->gb); decoded_size = bytestream2_get_le32(&ctx->gb); bytestream2_skip(&ctx->gb, 8); @@ -937,8 +940,8 @@ static int old_codec47(SANMVideoContext *ctx, int top, } if (!seq) { ctx->prev_seq = -1; - memset(prev1, 0, ctx->height * stride); - memset(prev2, 0, ctx->height * stride); + memset(prev1, auxcol[0], ctx->height * stride); + memset(prev2, auxcol[1], ctx->height * stride); } switch (compr) { _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
