39 lines
925 B
C
39 lines
925 B
C
#include "v4l2.h"
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#include "device/buffer_list.h"
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#include "device/device.h"
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#include "util/opts/log.h"
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int v4l2_buffer_list_refresh_states(buffer_list_t *buf_list)
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{
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if (!buf_list) {
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return -1;
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}
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struct v4l2_buffer v4l2_buf = {0};
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struct v4l2_plane v4l2_plane = {0};
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v4l2_buf.type = buf_list->v4l2->type;
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if (buf_list->v4l2->do_mplanes) {
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v4l2_buf.length = 1;
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v4l2_buf.m.planes = &v4l2_plane;
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}
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if (buf_list->do_mmap) {
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v4l2_buf.memory = V4L2_MEMORY_MMAP;
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} else {
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v4l2_buf.memory = V4L2_MEMORY_DMABUF;
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}
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for (int i = 0; i < buf_list->nbufs; i++) {
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v4l2_buf.index = i;
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ERR_IOCTL(buf_list, buf_list->v4l2->dev_fd, VIDIOC_QUERYBUF, &v4l2_buf, "Can't query buffer (flags=%08x)", i);
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LOG_INFO(buf_list, "Buffer: %d, Flags: %08x. Offset: %d", i, v4l2_buf.flags,
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buf_list->v4l2->do_mplanes ? v4l2_plane.m.mem_offset : v4l2_buf.m.offset);
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}
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error:
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return -1;
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}
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