korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-17 01:04:19 +08:00
Code Issues Packages Projects Releases Wiki Activity

[media] coda: add coda_estimate_sizeimage and use it in set_defaults

Browse Source 
Call coda_estimate_sizeimage from both try_fmt and set_defaults to
avoid this v4l2-compliance warning on the h.264 decoder video device:

    G_FMT:     1920x1088, 32315559, 1, 1920, 1048576, 3, 0, 0, feedcafe
    TRY/S_FMT: 1920x1088, 32315559, 1, 1920, 3133440, 3, 0, 0, feedcafe
    fail: v4l2-test-formats.cpp(948): Video Capture: S_FMT(G_FMT) != G_FMT

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Philipp Zabel 2015-01-23 13:51:29 -03:00 committed by Mauro Carvalho Chehab
parent e3cccff9aa
commit 8e428d5040
1 changed files with 23 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
drivers/media/platform/coda/coda-common.c
View File

@ -468,6 +468,18 @@ static int coda_try_pixelformat(struct coda_ctx *ctx, struct v4l2_format *f)
return 0;
}
static unsigned int coda_estimate_sizeimage(struct coda_ctx *ctx, u32 sizeimage,
u32 width, u32 height)
{
/*
* This is a rough estimate for sensible compressed buffer
* sizes (between 1 and 16 bits per pixel). This could be
* improved by better format specific worst case estimates.
*/
return round_up(clamp(sizeimage, width * height / 8,
width * height * 2), PAGE_SIZE);
}
static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
struct v4l2_format *f)
{
@ -513,15 +525,10 @@ static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
case V4L2_PIX_FMT_H264:
case V4L2_PIX_FMT_MPEG4:
f->fmt.pix.bytesperline = 0;
/*
* This is a rough estimate for sensible compressed buffer
* sizes (between 1 and 16 bits per pixel). This could be
* improved by better format specific worst case estimates.
*/
f->fmt.pix.sizeimage = round_up(clamp(f->fmt.pix.sizeimage,
f->fmt.pix.width * f->fmt.pix.height / 8,
f->fmt.pix.width * f->fmt.pix.height * 2),
PAGE_SIZE);
f->fmt.pix.sizeimage = coda_estimate_sizeimage(ctx,
f->fmt.pix.sizeimage,
f->fmt.pix.width,
f->fmt.pix.height);
break;
default:
BUG();
@ -1056,13 +1063,14 @@ static void coda_set_tiled_map_type(struct coda_ctx *ctx, int tiled_map_type)
static void set_default_params(struct coda_ctx *ctx)
{
unsigned int max_w, max_h, size;
unsigned int max_w, max_h, usize, csize;
ctx->codec = coda_find_codec(ctx->dev, ctx->cvd->src_formats[0],
ctx->cvd->dst_formats[0]);
max_w = min(ctx->codec->max_w, 1920U);
max_h = min(ctx->codec->max_h, 1088U);
size = max_w * max_h * 3 / 2;
usize = max_w * max_h * 3 / 2;
csize = coda_estimate_sizeimage(ctx, usize, max_w, max_h);
ctx->params.codec_mode = ctx->codec->mode;
ctx->colorspace = V4L2_COLORSPACE_REC709;
@ -1077,14 +1085,14 @@ static void set_default_params(struct coda_ctx *ctx)
ctx->q_data[V4L2_M2M_DST].height = max_h;
if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
ctx->q_data[V4L2_M2M_SRC].sizeimage = size;
ctx->q_data[V4L2_M2M_SRC].sizeimage = usize;
ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
ctx->q_data[V4L2_M2M_DST].sizeimage = round_up(size, PAGE_SIZE);
ctx->q_data[V4L2_M2M_DST].sizeimage = csize;
} else {
ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
ctx->q_data[V4L2_M2M_SRC].sizeimage = round_up(size, PAGE_SIZE);
ctx->q_data[V4L2_M2M_SRC].sizeimage = csize;
ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
ctx->q_data[V4L2_M2M_DST].sizeimage = size;
ctx->q_data[V4L2_M2M_DST].sizeimage = usize;
}
ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;