38 lines
737 B
C
38 lines
737 B
C
#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include <stddef.h>
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#include <linux/videodev2.h>
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typedef struct buffer_s buffer_t;
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typedef struct buffer_list_s buffer_list_t;
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typedef struct buffer_s {
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char *name;
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struct buffer_list_s *buf_list;
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int index;
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// Mapped memory (with DMA)
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void *start;
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size_t used;
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size_t length;
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int dma_fd;
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struct {
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unsigned flags;
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} v4l2;
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// State
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int mmap_reflinks;
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buffer_t *dma_source;
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bool enqueued;
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uint64_t enqueue_time_us, captured_time_us;
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} buffer_t;
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buffer_t *buffer_open(const char *name, buffer_list_t *buf_list, int buffer);
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void buffer_close(buffer_t *buf);
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bool buffer_use(buffer_t *buf);
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bool buffer_consumed(buffer_t *buf, const char *who);
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