From patchwork Tue Apr 26 09:15:43 2022
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From: Philipp Zabel
To: linux-media@vger.kernel.org
Cc: Mauro Carvalho Chehab ,
Hans Verkuil , kernel@pengutronix.de,
Philipp Zabel
Subject: [PATCH v2] media: coda: fix default JPEG colorimetry
Date: Tue, 26 Apr 2022 11:15:43 +0200
Message-Id: <20220426091543.2213405-1-p.zabel@pengutronix.de>
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Set default colorspace to SRGB for JPEG encoder and decoder devices,
to fix the following v4l2-compliance test failure:
test VIDIOC_TRY_FMT: OK
fail: v4l2-test-formats.cpp(818): fmt_raw.g_colorspace() != V4L2_COLORSPACE_SRGB
Also explicitly set transfer function, YCbCr encoding and quantization
range, as required by v4l2-compliance for the JPEG encoded side.
Signed-off-by: Philipp Zabel
---
v2: Drop the S_FMT(V4L2_COLORSPACE_DEFAULT) modifications,
they are not required for compliance.
---
.../media/platform/chips-media/coda-common.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/chips-media/coda-common.c b/drivers/media/platform/chips-media/coda-common.c
index d246afcb3f49..7528f2718c4d 100644
--- a/drivers/media/platform/chips-media/coda-common.c
+++ b/drivers/media/platform/chips-media/coda-common.c
@@ -1653,13 +1653,18 @@ static void set_default_params(struct coda_ctx *ctx)
csize = coda_estimate_sizeimage(ctx, usize, max_w, max_h);
ctx->params.codec_mode = ctx->codec->mode;
- if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_JPEG)
- ctx->colorspace = V4L2_COLORSPACE_JPEG;
- else
+ if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_JPEG ||
+ ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG) {
+ ctx->colorspace = V4L2_COLORSPACE_SRGB;
+ ctx->xfer_func = V4L2_XFER_FUNC_SRGB;
+ ctx->ycbcr_enc = V4L2_YCBCR_ENC_601;
+ ctx->quantization = V4L2_QUANTIZATION_FULL_RANGE;
+ } else {
ctx->colorspace = V4L2_COLORSPACE_REC709;
- ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
- ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
- ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
+ ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
+ ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
+ ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
+ }
ctx->params.framerate = 30;
/* Default formats for output and input queues */