marfrit/libva-v4l2-request-fourier
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Rework buffer management to be more generic and support untiled format

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Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
This commit is contained in:
Paul Kocialkowski
2018-07-11 15:16:52 +02:00
parent 2ca67372f8
commit 9f2c069f76
12 changed files with 330 additions and 100 deletions
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src/v4l2.h
+8 -4
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@@ -27,20 +27,24 @@
#include <stdbool.h>
#define DESTINATION_SIZE_MAX (1024 * 1024)
#define SOURCE_SIZE_MAX (1024 * 1024)
bool v4l2_find_format(int video_fd, unsigned int type,
unsigned int pixelformat);
int v4l2_set_format(int video_fd, unsigned int type, unsigned int pixelformat,
unsigned int width, unsigned int height);
int v4l2_get_format(int video_fd, unsigned int type, unsigned int *width,
unsigned int *height, unsigned int *bytesperline, unsigned int *sizes,
unsigned int *planes_count);
int v4l2_create_buffers(int video_fd, unsigned int type,
unsigned int buffers_count);
int v4l2_request_buffer(int video_fd, unsigned int type, unsigned int index,
unsigned int *length, unsigned int *offset);
unsigned int *lengths, unsigned int *offsets,
unsigned int buffers_count);
int v4l2_queue_buffer(int video_fd, int request_fd, unsigned int type,
unsigned int index, unsigned int size);
unsigned int index, unsigned int size, unsigned int buffers_count);
int v4l2_dequeue_buffer(int video_fd, int request_fd, unsigned int type,
unsigned int index);
unsigned int index, unsigned int buffers_count);
int v4l2_set_control(int video_fd, int request_fd, unsigned int id, void *data,
unsigned int size);
int v4l2_set_stream(int video_fd, unsigned int type, bool enable);