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Make device/buffer_list* be generic

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This commit is contained in:
Kamil Trzcinski
2022-04-10 11:24:25 +02:00
parent fd2f19270c
commit 33b7062bf1
21 changed files with 134 additions and 104 deletions
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166
device/v4l2/buffer_list.c Normal file
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#include "device/v4l2/v4l2.h"
#include "device/buffer.h"
#include "device/buffer_list.h"
#include "device/hw/device.h"
int v4l2_buffer_list_set_format(buffer_list_t *buf_list, unsigned width, unsigned height, unsigned format, unsigned bytesperline)
{
device_t *dev = buf_list->device;
struct v4l2_capability v4l2_cap;
E_XIOCTL(dev, dev->fd, VIDIOC_QUERYCAP, &v4l2_cap, "Can't query device capabilities");
if (buf_list->do_capture) {
if (v4l2_cap.capabilities & V4L2_CAP_VIDEO_CAPTURE) {
buf_list->v4l2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
} else if (v4l2_cap.capabilities & (V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_M2M_MPLANE)) {
buf_list->v4l2.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
buf_list->v4l2.do_mplanes = true;
} else {
E_LOG_ERROR(dev, "Video capture is not supported by device: %08x", v4l2_cap.capabilities);
}
} else {
if (v4l2_cap.capabilities & V4L2_CAP_VIDEO_OUTPUT) {
buf_list->v4l2.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
} else if (v4l2_cap.capabilities & (V4L2_CAP_VIDEO_OUTPUT_MPLANE | V4L2_CAP_VIDEO_M2M_MPLANE)) {
buf_list->v4l2.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
buf_list->v4l2.do_mplanes = true;
} else {
E_LOG_ERROR(dev, "Video output is not supported by device: %08x", v4l2_cap.capabilities);
}
}
// Add suffix for debug purposes
if (v4l2_cap.capabilities & (V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE | V4L2_CAP_VIDEO_M2M_MPLANE)) {
#define MPLANE_SUFFIX ":mplane"
buf_list->name = realloc(buf_list->name, strlen(buf_list->name) + strlen(MPLANE_SUFFIX) + 1);
strcat(buf_list->name, MPLANE_SUFFIX);
}
struct v4l2_format fmt = { 0 };
fmt.type = buf_list->v4l2.type;
unsigned orig_width = width;
unsigned orig_height = height;
// JPEG is in 16x16 blocks (shrink image to fit) (but adapt to 32x32)
// And ISP output
if (strstr(buf_list->name, "JPEG") || strstr(buf_list->name, "H264") || buf_list->do_capture && strstr(buf_list->name, "ISP")) {
width = shrink_to_block(width, 32);
height = shrink_to_block(height, 32);
E_LOG_VERBOSE(buf_list, "Adapting size to 32x32 block: %dx%d vs %dx%d", orig_width, orig_height, width, height);
}
if (format == V4L2_PIX_FMT_H264) {
bytesperline = 0;
}
E_LOG_DEBUG(buf_list, "Get current format ...");
E_XIOCTL(buf_list, buf_list->device->fd, VIDIOC_G_FMT, &fmt, "Can't set format");
if (buf_list->v4l2.do_mplanes) {
fmt.fmt.pix_mp.colorspace = V4L2_COLORSPACE_JPEG;
if (width)
fmt.fmt.pix_mp.width = width;
if (height)
fmt.fmt.pix_mp.height = height;
if (format)
fmt.fmt.pix_mp.pixelformat = format;
fmt.fmt.pix_mp.field = V4L2_FIELD_ANY;
fmt.fmt.pix_mp.num_planes = 1;
fmt.fmt.pix_mp.plane_fmt[0].bytesperline = bytesperline;
//fmt.fmt.pix_mp.plane_fmt[0].sizeimage = bytesperline * orig_height;
} else {
fmt.fmt.pix.colorspace = V4L2_COLORSPACE_RAW;
if (width)
fmt.fmt.pix.width = width;
if (height)
fmt.fmt.pix.height = height;
if (format)
fmt.fmt.pix.pixelformat = format;
fmt.fmt.pix.field = V4L2_FIELD_ANY;
fmt.fmt.pix.bytesperline = bytesperline;
//fmt.fmt.pix.sizeimage = bytesperline * orig_height;
}
E_LOG_DEBUG(buf_list, "Configuring format (%s)...", fourcc_to_string(format).buf);
E_XIOCTL(buf_list, buf_list->device->fd, VIDIOC_S_FMT, &fmt, "Can't set format");
if (buf_list->v4l2.do_mplanes) {
buf_list->fmt_width = fmt.fmt.pix_mp.width;
buf_list->fmt_height = fmt.fmt.pix_mp.height;
buf_list->fmt_format = fmt.fmt.pix_mp.pixelformat;
buf_list->fmt_bytesperline = fmt.fmt.pix_mp.plane_fmt[0].bytesperline;
} else {
buf_list->fmt_width = fmt.fmt.pix.width;
buf_list->fmt_height = fmt.fmt.pix.height;
buf_list->fmt_format = fmt.fmt.pix.pixelformat;
buf_list->fmt_bytesperline = fmt.fmt.pix.bytesperline;
}
if (bytesperline > 0 && buf_list->fmt_bytesperline != bytesperline) {
E_LOG_ERROR(buf_list, "Requested bytesperline=%u. Got %u.",
bytesperline, buf_list->fmt_bytesperline);
}
if (buf_list->fmt_width != width || buf_list->fmt_height != height) {
if (bytesperline) {
E_LOG_ERROR(buf_list, "Requested resolution=%ux%u is unavailable. Got %ux%u.",
width, height, buf_list->fmt_width, buf_list->fmt_height);
} else {
E_LOG_INFO(buf_list, "Requested resolution=%ux%u is unavailable. Got %ux%u. Accepted",
width, height, buf_list->fmt_width, buf_list->fmt_height);
}
}
if (format && buf_list->fmt_format != format) {
E_LOG_ERROR(buf_list, "Could not obtain the requested format=%s; driver gave us %s",
fourcc_to_string(format).buf,
fourcc_to_string(buf_list->fmt_format).buf);
}
E_LOG_INFO(
buf_list,
"Using: %ux%u/%s, bytesperline=%d",
buf_list->fmt_width,
buf_list->fmt_height,
fourcc_to_string(buf_list->fmt_format).buf,
buf_list->fmt_bytesperline
);
return 0;
error:
return -1;
}
int v4l2_buffer_list_set_buffers(buffer_list_t *buf_list, int nbufs)
{
struct v4l2_requestbuffers v4l2_req = {0};
v4l2_req.count = nbufs;
v4l2_req.type = buf_list->v4l2.type;
v4l2_req.memory = buf_list->do_mmap ? V4L2_MEMORY_MMAP : V4L2_MEMORY_DMABUF;
E_LOG_DEBUG(buf_list, "Requesting %u buffers", v4l2_req.count);
E_XIOCTL(buf_list, buf_list->device->fd, VIDIOC_REQBUFS, &v4l2_req, "Can't request buffers");
if (v4l2_req.count < 1) {
E_LOG_ERROR(buf_list, "Insufficient buffer memory: %u", v4l2_req.count);
}
E_LOG_DEBUG(buf_list, "Got %u buffers", v4l2_req.count);
return v4l2_req.count;
error:
return -1;
}
int v4l2_buffer_list_set_stream(buffer_list_t *buf_list, bool do_on)
{
enum v4l2_buf_type type = buf_list->v4l2.type;
E_XIOCTL(buf_list, buf_list->device->fd, do_on ? VIDIOC_STREAMON : VIDIOC_STREAMOFF, &type, "Cannot set streaming state");
return 0;
error:
return -1;
}