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Adding support for RGB format in dshow driver #216

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Adding support for RGB format in dshow driver #216

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bf206e8
Enhance pixel format handling in dshow.c
hit-labvn Feb 13, 2026
8bae14c
Merge branch 'main' into dshow-rgb-support
Mar 18, 2026
9a2a2a0
Swap color channel in dshow RGB
Mar 18, 2026
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28 changes: 28 additions & 0 deletions patches/ffmpeg.patch
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,34 @@ index 8f9fb04115..a70c24378d 100755
gmp
libaribb24
liblensfun
diff --git a/libavdevice/dshow.c b/libavdevice/dshow.c
index 6e97304850..582b2d05fe 100644
--- a/libavdevice/dshow.c
+++ b/libavdevice/dshow.c
@@ -76,6 +76,14 @@ static enum AVPixelFormat dshow_pixfmt(DWORD biCompression, WORD biBitCount)
case 32:
return AV_PIX_FMT_0RGB32;
}
+ case 0xe436eb7b:
+ return AV_PIX_FMT_RGB565;
+ case 0xe436eb7c:
+ return AV_PIX_FMT_RGB555;
+ case 0xe436eb7d:
+ return AV_PIX_FMT_BGR24;
+ case 0xe436eb7e:
+ return AV_PIX_FMT_0RGB32;
}
return avpriv_pix_fmt_find(PIX_FMT_LIST_RAW, biCompression); // all others
}
@@ -1581,7 +1589,7 @@ dshow_add_device(AVFormatContext *avctx,
par->codec_type = AVMEDIA_TYPE_VIDEO;
par->width = fmt_info->width;
par->height = fmt_info->height;
- par->codec_tag = bih->biCompression;
+ par->codec_tag = fmt_info->pix_fmt == AV_PIX_FMT_NONE ? bih->biCompression : 0;
par->format = fmt_info->pix_fmt;
if (bih->biCompression == MKTAG('H', 'D', 'Y', 'C')) {
av_log(avctx, AV_LOG_DEBUG, "attempt to use full range for HDYC...\n");
diff --git a/libavutil/riscv/cpu.c b/libavutil/riscv/cpu.c
index 8cc91625c7..481d63a39f 100644
--- a/libavutil/riscv/cpu.c
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