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[media] coda: make NV12 format default 

The chroma interleaved NV12 format has higher memory bandwidth efficiency
because the chroma planes can be read/written with longer burst lengths.
Use NV12 as default format if available and consistently sort it first.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Philipp Zabel 2015-07-16 13:19:39 -03:00 committed by Mauro Carvalho Chehab
parent a269e53b1a
commit 6727d4fce9
1 changed files with 14 additions and 14 deletions
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28
drivers/media/platform/coda/coda-common.c
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@ -90,17 +90,17 @@ void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
u32 base_cb, base_cr;
switch (q_data->fourcc) {
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_YUV420:
default:
base_cb = base_y + q_data->bytesperline * q_data->height;
base_cr = base_cb + q_data->bytesperline * q_data->height / 4;
break;
case V4L2_PIX_FMT_YVU420:
/* Switch Cb and Cr for YVU420 format */
base_cr = base_y + q_data->bytesperline * q_data->height;
base_cb = base_cr + q_data->bytesperline * q_data->height / 4;
break;
case V4L2_PIX_FMT_YUV420:
case V4L2_PIX_FMT_NV12:
default:
base_cb = base_y + q_data->bytesperline * q_data->height;
base_cr = base_cb + q_data->bytesperline * q_data->height / 4;
break;
case V4L2_PIX_FMT_YUV422P:
base_cb = base_y + q_data->bytesperline * q_data->height;
base_cr = base_cb + q_data->bytesperline * q_data->height / 2;
@ -156,9 +156,9 @@ static const struct coda_video_device coda_bit_encoder = {
.type = CODA_INST_ENCODER,
.ops = &coda_bit_encode_ops,
.src_formats = {
V4L2_PIX_FMT_NV12,
V4L2_PIX_FMT_YUV420,
V4L2_PIX_FMT_YVU420,
V4L2_PIX_FMT_NV12,
},
.dst_formats = {
V4L2_PIX_FMT_H264,
@ -171,9 +171,9 @@ static const struct coda_video_device coda_bit_jpeg_encoder = {
.type = CODA_INST_ENCODER,
.ops = &coda_bit_encode_ops,
.src_formats = {
V4L2_PIX_FMT_NV12,
V4L2_PIX_FMT_YUV420,
V4L2_PIX_FMT_YVU420,
V4L2_PIX_FMT_NV12,
V4L2_PIX_FMT_YUV422P,
},
.dst_formats = {
@ -190,9 +190,9 @@ static const struct coda_video_device coda_bit_decoder = {
V4L2_PIX_FMT_MPEG4,
},
.dst_formats = {
V4L2_PIX_FMT_NV12,
V4L2_PIX_FMT_YUV420,
V4L2_PIX_FMT_YVU420,
V4L2_PIX_FMT_NV12,
},
};
@ -204,9 +204,9 @@ static const struct coda_video_device coda_bit_jpeg_decoder = {
V4L2_PIX_FMT_JPEG,
},
.dst_formats = {
V4L2_PIX_FMT_NV12,
V4L2_PIX_FMT_YUV420,
V4L2_PIX_FMT_YVU420,
V4L2_PIX_FMT_NV12,
V4L2_PIX_FMT_YUV422P,
},
};
@ -234,9 +234,9 @@ static const struct coda_video_device *coda9_video_devices[] = {
static u32 coda_format_normalize_yuv(u32 fourcc)
{
switch (fourcc) {
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_YUV420:
case V4L2_PIX_FMT_YVU420:
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_YUV422P:
return V4L2_PIX_FMT_YUV420;
default:
@ -448,9 +448,9 @@ static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
S_ALIGN);
switch (f->fmt.pix.pixelformat) {
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_YUV420:
case V4L2_PIX_FMT_YVU420:
case V4L2_PIX_FMT_NV12:
/*
* Frame stride must be at least multiple of 8,
* but multiple of 16 for h.264 or JPEG 4:2:x
@ -1099,8 +1099,8 @@ static void set_default_params(struct coda_ctx *ctx)
ctx->params.framerate = 30;
/* Default formats for output and input queues */
ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->codec->src_fourcc;
ctx->q_data[V4L2_M2M_DST].fourcc = ctx->codec->dst_fourcc;
ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->cvd->src_formats[0];
ctx->q_data[V4L2_M2M_DST].fourcc = ctx->cvd->dst_formats[0];
ctx->q_data[V4L2_M2M_SRC].width = max_w;
ctx->q_data[V4L2_M2M_SRC].height = max_h;
ctx->q_data[V4L2_M2M_DST].width = max_w;