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v4l2test: Solve blurred screen problem in 45 or 60 fps.

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1. Fix the error buffer count for v4l2 when using pingpong buffer.
2. Add readable flag for pingpong buffers exchange to avoid overproduction.

Signed-off-by: Kevin.xie <kevin.xie@starfivetech.com>
This commit is contained in:
Kevin.xie
2022-08-09 20:40:29 +08:00
parent 6b8cb8042a
commit a2d183cea1
4 changed files with 44 additions and 16 deletions
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package/starfive/v4l2_test/stf_v4l2.c
+9 -5
View File
@@ -406,14 +406,14 @@ static void stf_v4l2_readInit(V4l2Param_t *param)
LOG(STF_LEVEL_TRACE, "Exit\n");
}
static void stf_v4l2_mmapInit(V4l2Param_t *param)
static void stf_v4l2_mmapInit(V4l2Param_t *param, int buf_count)
{
int i = 0;
struct v4l2_requestbuffers req;
CLEAR(req);
LOG(STF_LEVEL_TRACE, "Enter\n");
req.count = BUFCOUNT;
req.count = buf_count;
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
req.memory = V4L2_MEMORY_MMAP;
if (-1 == xioctl(param->fd, VIDIOC_REQBUFS, &req)) {
@@ -556,7 +556,7 @@ static void stf_v4l2_userptrInit(V4l2Param_t *param)
param->image_size = buffer_size;
}
void sft_v4l2_prepare_capturing(V4l2Param_t *param, int *dmabufs, int count)
void sft_v4l2_prepare_capturing(V4l2Param_t *param, int *dmabufs, STF_DISP_TYPE disp_type)
{
LOG(STF_LEVEL_TRACE, "Enter\n");
switch (param->io_mthd) {
@@ -565,7 +565,11 @@ void sft_v4l2_prepare_capturing(V4l2Param_t *param, int *dmabufs, int count)
break;
case IO_METHOD_MMAP:
stf_v4l2_mmapInit(param);
if(STF_DISP_DRM == disp_type) {
stf_v4l2_mmapInit(param, PINGPONG_BUFCOUNT);
} else {
stf_v4l2_mmapInit(param, BUFCOUNT);
}
break;
case IO_METHOD_USERPTR:
@@ -573,7 +577,7 @@ void sft_v4l2_prepare_capturing(V4l2Param_t *param, int *dmabufs, int count)
break;
case IO_METHOD_DMABUF:
stf_v4l2_dmabufInit(param, dmabufs, count);
stf_v4l2_dmabufInit(param, dmabufs, BUFCOUNT);
break;
default: