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GstAllocator *
gst_dmabuf_allocator_new (void);
Return a new dmabuf allocator.
a new dmabuf allocator, or NULL if the allocator
isn't available. Use gst_object_unref() to release the allocator after
usage.
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Since: 1.2
GstMemory * gst_dmabuf_allocator_alloc (GstAllocator *allocator,gint fd,gsize size);
Return a GstMemory that wraps a dmabuf file descriptor.
allocator |
allocator to be used for this memory |
|
fd |
dmabuf file descriptor |
|
size |
memory size |
a GstMemory based on allocator
.
When the buffer will be released dmabuf allocator will close the fd
.
The memory is only mmapped on gst_buffer_mmap() request.
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Since: 1.2
gint
gst_dmabuf_memory_get_fd (GstMemory *mem);
Return the file descriptor associated with mem
.
the file descriptor associated with the memory, or -1. The file descriptor is still owned by the GstMemory. Use dup to take a copy if you intend to use it beyond the lifetime of this GstMemory.
Since: 1.2