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authorTomas Härdin <git@haerdin.se>2023-06-08 11:55:28 +0200
committerTomas Härdin <git@haerdin.se>2023-06-20 14:35:35 +0200
commit4cc40c050ac671d470deeff6c47671a5dd143221 (patch)
tree0781acf6c8305a32f5f51e82f68fcb710d79188f /libavformat/riffenc.c
parent2cac3fd744ea7f1a8bd0f507718c3323e75442c6 (diff)
lavc/riffenc: Fix msrle support on Windows 95
Diffstat (limited to 'libavformat/riffenc.c')
-rw-r--r--libavformat/riffenc.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/libavformat/riffenc.c b/libavformat/riffenc.c
index 179b0f12cb..3325419b94 100644
--- a/libavformat/riffenc.c
+++ b/libavformat/riffenc.c
@@ -239,14 +239,16 @@ void ff_put_bmp_header(AVIOContext *pb, AVCodecParameters *par,
/* depth */
avio_wl16(pb, par->bits_per_coded_sample ? par->bits_per_coded_sample : 24);
/* compression type */
- avio_wl32(pb, par->codec_tag);
+ // MSRLE compatibility with Media Player 3.1 and Windows 95
+ avio_wl32(pb, par->codec_id == AV_CODEC_ID_MSRLE ? 1 : par->codec_tag);
avio_wl32(pb, (par->width * par->height * (par->bits_per_coded_sample ? par->bits_per_coded_sample : 24)+7) / 8);
avio_wl32(pb, 0);
avio_wl32(pb, 0);
/* Number of color indices in the color table that are used.
* A value of 0 means 2^biBitCount indices, but this doesn't work
* with Windows Media Player and files containing xxpc chunks. */
- avio_wl32(pb, pal_avi ? 1 << par->bits_per_coded_sample : 0);
+ // MSRLE on Windows 95 requires a zero here
+ avio_wl32(pb, pal_avi && par->codec_id != AV_CODEC_ID_MSRLE ? 1 << par->bits_per_coded_sample : 0);
avio_wl32(pb, 0);
if (!ignore_extradata) {