esp_h264_alloc.c File Reference

#include "esp_h264_alloc.h"
#include "esp_h264_cache.h"
#include "esp_private/esp_cache_private.h"

Include dependency graph for esp_h264_alloc.c:

Functions
void *	esp_h264_aligned_calloc (uint32_t alignment, uint32_t n, uint32_t size, uint32_t *actual_size, uint32_t caps)
	Allocate an aligned chunk of memory which has the given capabilities.
void *	esp_h264_calloc_prefer (uint32_t n, uint32_t size, uint32_t *actual_size, uint32_t caps1, uint32_t caps2)
	Allocate a chunk of memory as preference in decreasing order. And helper function for calloc a cache aligned data memory buffer.

Function Documentation

esp_h264_aligned_calloc()

void * esp_h264_aligned_calloc	(	uint32_t	alignment,
		uint32_t	n,
		uint32_t	size,
		uint32_t *	actual_size,
		uint32_t	caps
	)

Allocate an aligned chunk of memory which has the given capabilities.

Parameters

[in]	alignment	How the pointer received needs to be aligned must be a power of two. If the value is less than cache line size, the value will be forced cache line size.
[in]	n	Number of continuing chunks of memory to allocate
[in]	size	Size, in bytes, of a chunk of memory to allocate
[in]	caps	ESP_H264_MEM_INTERNAL or ESP_H264_MEM_SPIRAM

Returns

• NULL Failure
• others A pointer to the memory allocated on success

esp_h264_calloc_prefer()

void * esp_h264_calloc_prefer	(	uint32_t	n,
		uint32_t	size,
		uint32_t *	actual_size,
		uint32_t	caps1,
		uint32_t	caps2
	)

Allocate a chunk of memory as preference in decreasing order. And helper function for calloc a cache aligned data memory buffer.

Parameters

[in]	n	Number of continuing chunks of memory to allocate
[in]	size	Size, in bytes, of a chunk of memory to allocate
[in]	caps1	ESP_H264_MEM_INTERNAL or ESP_H264_MEM_SPIRAM
[in]	caps2	ESP_H264_MEM_INTERNAL or ESP_H264_MEM_SPIRAM

Returns

• NULL Failure
• others A pointer to the memory allocated on success