43 static MPP_RET allocator_ext_dma_alloc(void *ctx, MppBufferInfo *info)  in allocator_ext_dma_alloc()  argument
45     if (!ctx || !info) {  in allocator_ext_dma_alloc()
53 static MPP_RET allocator_ext_dma_free(void *ctx, MppBufferInfo *info)  in allocator_ext_dma_free()  argument
55     if (!ctx || !info) {  in allocator_ext_dma_free()
63 static MPP_RET allocator_ext_dma_import(void *ctx, MppBufferInfo *info)  in allocator_ext_dma_import()  argument
67     mpp_assert(info->size);  in allocator_ext_dma_import()
69     if (info->ptr) {  in allocator_ext_dma_import()
74     return ((info->fd < 0) ? MPP_ERR_VALUE : MPP_OK);  in allocator_ext_dma_import()
77 static MPP_RET allocator_ext_dma_mmap(void *ctx, MppBufferInfo *info)  in allocator_ext_dma_mmap()  argument
83     mpp_assert(info->size);  in allocator_ext_dma_mmap()
84     mpp_assert(info->fd >= 0);  in allocator_ext_dma_mmap()
86     if (info->ptr)  in allocator_ext_dma_mmap()
94     if (fcntl(info->fd, F_GETFL) & O_RDWR)  in allocator_ext_dma_mmap()
97     ptr = mmap(NULL, info->size, flags, MAP_SHARED, info->fd, offset);  in allocator_ext_dma_mmap()
101     info->ptr = ptr;  in allocator_ext_dma_mmap()
106 static MPP_RET allocator_ext_dma_release(void *ctx, MppBufferInfo *info)  in allocator_ext_dma_release()  argument
109     mpp_assert(info->size);  in allocator_ext_dma_release()
111     if (info->ptr)  in allocator_ext_dma_release()
112         munmap(info->ptr, info->size);  in allocator_ext_dma_release()
114     info->ptr   = NULL;  in allocator_ext_dma_release()
115     info->hnd   = NULL;  in allocator_ext_dma_release()
116     info->fd    = -1;  in allocator_ext_dma_release()
117     info->size  = 0;  in allocator_ext_dma_release()