Commit b03abe53 authored by Philipp Zabel's avatar Philipp Zabel Committed by Mauro Carvalho Chehab
Browse files

media: coda: implement encoder frame size enumeration 



The stateful encoder API requires VIDIOC_ENUM_FRAMESIZES to be
implemented.
Allow enumeration of supported frame sizes for encoding.

Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent 784867d2

drivers/media/platform/coda/coda-common.c

+37 −0
Original line number Diff line number Diff line
@@ -1077,6 +1077,42 @@ static int coda_decoder_cmd(struct file *file, void *fh, 
	return 0;

}



static int coda_enum_framesizes(struct file *file, void *fh,

				struct v4l2_frmsizeenum *fsize)

{

	struct coda_ctx *ctx = fh_to_ctx(fh);

	struct coda_q_data *q_data_dst;

	const struct coda_codec *codec;



	if (ctx->inst_type != CODA_INST_ENCODER)

		return -ENOTTY;



	if (fsize->index)

		return -EINVAL;



	if (coda_format_normalize_yuv(fsize->pixel_format) ==

	    V4L2_PIX_FMT_YUV420) {

		q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);

		codec = coda_find_codec(ctx->dev, fsize->pixel_format,

					q_data_dst->fourcc);

	} else {

		codec = coda_find_codec(ctx->dev, V4L2_PIX_FMT_YUV420,

					fsize->pixel_format);

	}

	if (!codec)

		return -EINVAL;



	fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;

	fsize->stepwise.min_width = MIN_W;

	fsize->stepwise.max_width = codec->max_w;

	fsize->stepwise.step_width = 1;

	fsize->stepwise.min_height = MIN_H;

	fsize->stepwise.max_height = codec->max_h;

	fsize->stepwise.step_height = 1;



	return 0;

}



static int coda_enum_frameintervals(struct file *file, void *fh,

				    struct v4l2_frmivalenum *f)

{
@@ -1255,6 +1291,7 @@ static const struct v4l2_ioctl_ops coda_ioctl_ops = { 
	.vidioc_g_parm		= coda_g_parm,

	.vidioc_s_parm		= coda_s_parm,



	.vidioc_enum_framesizes	= coda_enum_framesizes,

	.vidioc_enum_frameintervals = coda_enum_frameintervals,



	.vidioc_subscribe_event = coda_subscribe_event,

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