From: cgutman via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>
To: ffmpeg-devel@ffmpeg.org
Cc: cgutman <code@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH] avcodec/v4l2_buffers: map additional V4L2 TRCs (PR #20880)
Date: Mon, 10 Nov 2025 04:40:47 -0000
Message-ID: <176274964829.25.9545776702295348874@2cb04c0e5124> (raw)
PR #20880 opened by cgutman
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20880
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20880.patch
Adds a few missing `V4L2_XFER_FUNC_` -> `AVCOL_TRC_` mappings.
>From 0135c65a0b026d271fba073382fd6a4f83968cb1 Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Sun, 9 Nov 2025 22:25:29 -0600
Subject: [PATCH] avcodec/v4l2_buffers: map additional V4L2 TRCs
Signed-off-by: Cameron Gutman <aicommander@gmail.com>
---
libavcodec/v4l2_buffers.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavcodec/v4l2_buffers.c b/libavcodec/v4l2_buffers.c
index d869ce9e77..077c1ee944 100644
--- a/libavcodec/v4l2_buffers.c
+++ b/libavcodec/v4l2_buffers.c
@@ -190,6 +190,9 @@ static enum AVColorTransferCharacteristic v4l2_get_color_trc(V4L2Buffer *buf)
switch (xfer) {
case V4L2_XFER_FUNC_709: return AVCOL_TRC_BT709;
case V4L2_XFER_FUNC_SRGB: return AVCOL_TRC_IEC61966_2_1;
+ case V4L2_XFER_FUNC_SMPTE240M: return AVCOL_TRC_SMPTE240M;
+ case V4L2_XFER_FUNC_NONE: return AVCOL_TRC_LINEAR;
+ case V4L2_XFER_FUNC_SMPTE2084: return AVCOL_TRC_SMPTE2084;
default:
break;
}
--
2.49.1
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