It looks like only h.264 streams are populating the event.input_crop
struct when receiving the HFI_INDEX_EXTRADATA_INPUT_CROP message in
event_seq_changed(). vp8/vp9 streams end up with the struct filled
with 0.
On Fri, Oct 9, 2020 at 1:45 AM Alexandre Courbot <acour...@chromium.org> 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.
>
> Signed-off-by: Alexandre Courbot <acour...@chromium.org>
> ---
> drivers/media/platform/qcom/venus/core.h | 1 +
> drivers/media/platform/qcom/venus/vdec.c | 21 ++++++++++++++++-----
> 2 files changed, 17 insertions(+), 5 deletions(-)
>
> 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..ee74346f0cae 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 +1312,10 @@ static void vdec_event_change(struct venus_inst *inst,
>
> inst->width = format.fmt.pix_mp.width;
> inst->height = format.fmt.pix_mp.height;
> + 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;
>
> inst->out_width = ev_data->width;
> inst->out_height = ev_data->height;
> @@ -1412,6 +1419,10 @@ 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;
> --
> 2.28.0.1011.ga647a8990f-goog
>
