From 353a2d2164c09740e42f33014c4773b93e96a0d2 Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Mon, 9 Jan 2012 23:37:24 +0000 Subject: bmpdec: support for rgb444 with bitfields compression Do not display garbage for invalid/unsupported bitfields values. Signed-off-by: Ronald S. Bultje --- libavcodec/bmp.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'libavcodec/bmp.c') diff --git a/libavcodec/bmp.c b/libavcodec/bmp.c index f438d10613..1f725f5369 100644 --- a/libavcodec/bmp.c +++ b/libavcodec/bmp.c @@ -162,8 +162,18 @@ static int bmp_decode_frame(AVCodecContext *avctx, case 16: if(comp == BMP_RGB) avctx->pix_fmt = PIX_FMT_RGB555; - if(comp == BMP_BITFIELDS) - avctx->pix_fmt = rgb[1] == 0x07E0 ? PIX_FMT_RGB565 : PIX_FMT_RGB555; + else if (comp == BMP_BITFIELDS) { + if (rgb[0] == 0xF800 && rgb[1] == 0x07E0 && rgb[2] == 0x001F) + avctx->pix_fmt = PIX_FMT_RGB565; + else if (rgb[0] == 0x7C00 && rgb[1] == 0x03E0 && rgb[2] == 0x001F) + avctx->pix_fmt = PIX_FMT_RGB555; + else if (rgb[0] == 0x0F00 && rgb[1] == 0x00F0 && rgb[2] == 0x000F) + avctx->pix_fmt = PIX_FMT_RGB444; + else { + av_log(avctx, AV_LOG_ERROR, "Unknown bitfields %0X %0X %0X\n", rgb[0], rgb[1], rgb[2]); + return AVERROR(EINVAL); + } + } break; case 8: if(hsize - ihsize - 14 > 0) -- cgit v1.2.3