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fix Full vs Restricted color issue by conversion to sRGB

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thanks to @PancakeTAS for this discovery
This commit is contained in:
F. Duncanh
2024-12-19 21:04:51 -05:00
parent 47783de5de
commit b1fb510333
7 changed files with 77 additions and 12 deletions
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6
renderers/video_renderer.c
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@@ -128,14 +128,14 @@ static void append_videoflip (GString *launch, const videoflip_t *flip, const vi
}
}
/* apple uses colorimetry=1:3:5:1 *
/* apple uses colorimetry that is detected as 1:3:7:1 * //previously 1:3:5:1 was seen
* (not recognized by v4l2 plugin in Gstreamer < 1.20.4) *
* See .../gst-libs/gst/video/video-color.h in gst-plugins-base *
* range = 1 -> GST_VIDEO_COLOR_RANGE_0_255 ("full RGB") *
* matrix = 3 -> GST_VIDEO_COLOR_MATRIX_BT709 *
* transfer = 5 -> GST_VIDEO_TRANSFER_BT709 *
* transfer = 7 -> GST_VIDEO_TRANSFER_SRGB * // previously GST_VIDEO_TRANSFER_BT709
* primaries = 1 -> GST_VIDEO_COLOR_PRIMARIES_BT709 *
* closest used by GStreamer < 1.20.4 is BT709, 2:3:5:1 with * *
* closest used by GStreamer < 1.20.4 is BT709, 2:3:5:1 with * // now use sRGB = 1:1:7:1
* range = 2 -> GST_VIDEO_COLOR_RANGE_16_235 ("limited RGB") */
static const char h264_caps[]="video/x-h264,stream-format=(string)byte-stream,alignment=(string)au";