diff mbox series

[v2] venus: vdec: return parsed crop information from stream

Message ID 20201021000943.656247-1-acourbot@chromium.org
State Accepted
Commit de04408fd12d5d3b9fb3724034666a84cccbf190
Headers show
Series [v2] venus: vdec: return parsed crop information from stream | expand

Commit Message

Alexandre Courbot Oct. 21, 2020, 12:09 a.m. UTC
Per the stateful codec specification, VIDIOC_G_SELECTION with a target
of V4L2_SEL_TGT_COMPOSE is supposed to return the crop area of capture
buffers containing the decoded frame. Until now the driver did not get
that information from the firmware and just returned the dimensions of
CAPTURE buffers.

The firmware unfortunately does not always provide the crop information
from the stream ; also make sure to detect when that happens and
fallback to providing the coded size in these cases.

Signed-off-by: Alexandre Courbot <acourbot@chromium.org>
---
Changes since v1:
* Fall back to the previous behavior of returning the coded size if the
  firmware does not report any crop information.

 drivers/media/platform/qcom/venus/core.h |  1 +
 drivers/media/platform/qcom/venus/vdec.c | 32 ++++++++++++++++++++----
 2 files changed, 28 insertions(+), 5 deletions(-)

Comments

patchwork-bot+linux-arm-msm@kernel.org Dec. 29, 2020, 8:15 p.m. UTC | #1
Hello:

This patch was applied to qcom/linux.git (refs/heads/for-next):

On Wed, 21 Oct 2020 09:09:43 +0900 you wrote:
> Per the stateful codec specification, VIDIOC_G_SELECTION with a target

> of V4L2_SEL_TGT_COMPOSE is supposed to return the crop area of capture

> buffers containing the decoded frame. Until now the driver did not get

> that information from the firmware and just returned the dimensions of

> CAPTURE buffers.

> 

> The firmware unfortunately does not always provide the crop information

> from the stream ; also make sure to detect when that happens and

> fallback to providing the coded size in these cases.

> 

> [...]


Here is the summary with links:
  - [v2] venus: vdec: return parsed crop information from stream
    https://git.kernel.org/qcom/c/de04408fd12d

You are awesome, thank you!
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diff mbox series

Patch

diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index 7b79a33dc9d6..3bc129a4f817 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -361,6 +361,7 @@  struct venus_inst {
 	unsigned int streamon_cap, streamon_out;
 	u32 width;
 	u32 height;
+	struct v4l2_rect crop;
 	u32 out_width;
 	u32 out_height;
 	u32 colorspace;
diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
index ea13170a6a2c..8488411204c3 100644
--- a/drivers/media/platform/qcom/venus/vdec.c
+++ b/drivers/media/platform/qcom/venus/vdec.c
@@ -325,6 +325,10 @@  static int vdec_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
 
 	inst->width = format.fmt.pix_mp.width;
 	inst->height = format.fmt.pix_mp.height;
+	inst->crop.top = 0;
+	inst->crop.left = 0;
+	inst->crop.width = inst->width;
+	inst->crop.height = inst->height;
 
 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 		inst->fmt_out = fmt;
@@ -343,6 +347,9 @@  vdec_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
 	    s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
 		return -EINVAL;
 
+	s->r.top = 0;
+	s->r.left = 0;
+
 	switch (s->target) {
 	case V4L2_SEL_TGT_CROP_BOUNDS:
 	case V4L2_SEL_TGT_CROP_DEFAULT:
@@ -363,16 +370,12 @@  vdec_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
 	case V4L2_SEL_TGT_COMPOSE:
 		if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 			return -EINVAL;
-		s->r.width = inst->out_width;
-		s->r.height = inst->out_height;
+		s->r = inst->crop;
 		break;
 	default:
 		return -EINVAL;
 	}
 
-	s->r.top = 0;
-	s->r.left = 0;
-
 	return 0;
 }
 
@@ -1309,6 +1312,21 @@  static void vdec_event_change(struct venus_inst *inst,
 
 	inst->width = format.fmt.pix_mp.width;
 	inst->height = format.fmt.pix_mp.height;
+	/*
+	 * Some versions of the firmware do not report crop information for
+	 * all codecs. For these cases, set the crop to the coded resolution.
+	 */
+	if (ev_data->input_crop.width > 0 && ev_data->input_crop.height > 0) {
+		inst->crop.left = ev_data->input_crop.left;
+		inst->crop.top = ev_data->input_crop.top;
+		inst->crop.width = ev_data->input_crop.width;
+		inst->crop.height = ev_data->input_crop.height;
+	} else {
+		inst->crop.left = 0;
+		inst->crop.top = 0;
+		inst->crop.width = ev_data->width;
+		inst->crop.height = ev_data->height;
+	}
 
 	inst->out_width = ev_data->width;
 	inst->out_height = ev_data->height;
@@ -1412,6 +1430,10 @@  static void vdec_inst_init(struct venus_inst *inst)
 	inst->fmt_cap = &vdec_formats[0];
 	inst->width = frame_width_min(inst);
 	inst->height = ALIGN(frame_height_min(inst), 32);
+	inst->crop.left = 0;
+	inst->crop.top = 0;
+	inst->crop.width = inst->width;
+	inst->crop.height = inst->height;
 	inst->out_width = frame_width_min(inst);
 	inst->out_height = frame_height_min(inst);
 	inst->fps = 30;