gst_buffer_new
gst_buffer_new_and_alloc
gst_buffer_set_data
-gst_buffer_new_from_pool
gst_buffer_default_free
gst_buffer_default_copy
gst_buffer_ref
gst_buffer_flag_get_type
</SECTION>
-<SECTION>
-<FILE>gstbufferpool</FILE>
-<TITLE>GstBufferPool</TITLE>
-GST_BUFFER_POOL
-GST_BUFFER_POOL_TRACE_NAME
-GST_IS_BUFFER_POOL
-GstBufferPool
-GstBufferPoolBufferNewFunction
-GstBufferPoolBufferCopyFunction
-GstBufferPoolBufferFreeFunction
-gst_buffer_pool_new
-gst_buffer_pool_is_active
-gst_buffer_pool_set_active
-gst_buffer_pool_ref
-gst_buffer_pool_ref_by_count
-gst_buffer_pool_unref
-gst_buffer_pool_copy
-gst_buffer_pool_copy_on_write
-gst_buffer_pool_free
-gst_buffer_pool_set_user_data
-gst_buffer_pool_get_user_data
-gst_buffer_pool_get_default
-gst_buffer_pool_default_free
-<SUBSECTION Standard>
-GST_TYPE_BUFFER_POOL
-</SECTION>
-
<SECTION>
<FILE>gstevent</FILE>
<TITLE>GstEvent</TITLE>
GstPad
GstPadChainFunction
GstPadGetFunction
-GstPadBufferPoolFunction
GstPadGetCapsFunction
GstPadEventFunction
gst_pad_get_direction
gst_pad_set_chain_function
gst_pad_set_get_function
-gst_pad_set_bufferpool_function
gst_pad_set_link_function
gst_pad_set_getcaps_function
gst_pad_try_set_caps
gst_pad_can_link_filtered
gst_pad_push
gst_pad_pull
-gst_pad_get_bufferpool
gst_pad_load_and_link
gst_pad_proxy_link
gst_pad_get_pad_template
+++ /dev/null
-<!-- ##### SECTION Title ##### -->
-GstBufferPool
-
-<!-- ##### SECTION Short_Description ##### -->
-Create buffers from a pool
-
-<!-- ##### SECTION Long_Description ##### -->
-<para>
-A bufferpool is used to create buffers in an efficient way. An element
-can, for example, maintain a bufferpool with a fixed number of buffers.
-This will reduce the g_malloc and g_free overhead.
-</para>
-<para>
-A bufferpool can also be used to implement direct access. A bufferpool can be
-sent from one element to another so that the latter can directly write into
-the memory of the element that maintains the bufferpool. This can greatly reduce
-the number of memcpy operations.
-</para>
-<para>
-A bufferpool is created with gst_buffer_pool_new(). You'll have to provide a
-free and copy function to handle the refcounting of the bufferpool as well as
-functions to create, free and copy buffers created from this pool. All buffer
-functions will receive the user_data you provide in the constructor.
-When no free and copy function is provided for the pool, a default implementation
-will be used.
-</para>
-<para>
-To create a buffer from the bufferpool use gst_buffer_new_from_pool().
-</para>
-<para>
-When the buffer is unreffed and has reached a refcount of 0, the bufferpools free
-function is called with the pool, the buffer and the user_data as arguments.
-</para>
-<para>
-A bufferpool can store private data in the buffer it creates with the GST_BUFFER_POOL_PRIVATE()
-macro. To check it a buffer was made by a specific bufferpool, use the GST_BUFFER_BUFFERPOOL()
-macro to get its bufferpool.
-</para>
-<para>
-All plugins should unref the bufferpool if it is no longer required. When the bufferpool
-reaches a refcount of 0, the free function will be called.
-</para>
-<para>
-If your plugin is going to need a lot of equally sized memory areas you can use
-gst_buffer_pool_get_default() to request a pool that will create buffers of that size.
-These bufferpools will be shared with all plugins needing the same size of buffers so it's
-quite efficient since it reduces the number of memory allocations.
-</para>
-
-<para>
-A bufferpool can be requested from a pad with the gst_pad_get_bufferpool() function. This function
-is typically used when a plugin wants to write into a memory area provided by another plugin.
-Use gst_buffer_pool_unref() is you no longer require the bufferpool.
-</para>
-
-<!-- ##### SECTION See_Also ##### -->
-<para>
-#GstBuffer, #GstPad
-</para>
-
-<!-- ##### MACRO GST_BUFFER_POOL ##### -->
-<para>
-Cast a pointer to a GstBufferPool
-</para>
-
-@pool: The pointer to cast
-
-
-<!-- ##### MACRO GST_BUFFER_POOL_TRACE_NAME ##### -->
-<para>
-The name used for memory tracing.
-</para>
-
-
-
-<!-- ##### MACRO GST_IS_BUFFER_POOL ##### -->
-<para>
-Check if the given pointer is a bufferpool
-</para>
-
-@buf: The pointer to check
-
-
-<!-- ##### STRUCT GstBufferPool ##### -->
-<para>
-The bufferpool structure
-</para>
-
-@data:
-@active:
-@buffer_new:
-@buffer_copy:
-@buffer_free:
-@user_data:
-@_gst_reserved:
-
-<!-- ##### USER_FUNCTION GstBufferPoolBufferNewFunction ##### -->
-<para>
-The function will be called when a buffer must be allocated from the pool.
-</para>
-
-@pool: The pool allocating the buffer
-@offset: An offset for the requested buffer, this can be a TIMESTAMP for example
- so that the bufferpool owner can implement double buffering or return
- a suitable position in a DMA buffer.
-@size: The size of the allocated buffer
-@user_data: user data as set on the bufferpool
-@Returns: A new buffer with the given parameters.
-
-
-<!-- ##### USER_FUNCTION GstBufferPoolBufferCopyFunction ##### -->
-<para>
-The function that will be called when a buffer from the given pool is copied.
-</para>
-
-@pool: The pool that owns the buffer
-@buffer: The buffer to copy
-@user_data: any user data associated with the pool
-@Returns: A new buffer that is a copy of the original
-
-
-<!-- ##### USER_FUNCTION GstBufferPoolBufferFreeFunction ##### -->
-<para>
-The function that will be called when a buffer is to be freed into the
-pool.
-</para>
-
-@pool: The pool that owns the buffer
-@buffer: The buffer to free
-@user_data: Any user data associated with the pool
-
-
-<!-- ##### FUNCTION gst_buffer_pool_new ##### -->
-<para>
-
-</para>
-
-@free:
-@copy:
-@buffer_new:
-@buffer_copy:
-@buffer_free:
-@user_data:
-@Returns:
-
-
-<!-- ##### FUNCTION gst_buffer_pool_is_active ##### -->
-<para>
-
-</para>
-
-@pool:
-@Returns:
-
-
-<!-- ##### FUNCTION gst_buffer_pool_set_active ##### -->
-<para>
-
-</para>
-
-@pool:
-@active:
-
-
-<!-- ##### MACRO gst_buffer_pool_ref ##### -->
-<para>
-Increase the refcount of the given pool
-</para>
-
-@pool: The pool to refcount
-
-
-<!-- ##### MACRO gst_buffer_pool_ref_by_count ##### -->
-<para>
-Increase the refcount of the given pool by c
-</para>
-
-@pool: The pool to refcount
-@c: The value to add to the refcount
-
-
-<!-- ##### MACRO gst_buffer_pool_unref ##### -->
-<para>
-Decrease the refcount of the given pool. If the refcount reaches
-0, the free function of the pool will be called.
-</para>
-
-@pool: The pool to unref.
-
-
-<!-- ##### MACRO gst_buffer_pool_copy ##### -->
-<para>
-Copy the pool
-</para>
-
-@pool: The pool to copy.
-
-
-<!-- ##### MACRO gst_buffer_pool_copy_on_write ##### -->
-<para>
-Copy the pool if the refcount > 1
-</para>
-
-@pool: A copy of the pool or the pool itself if the refcount is 1
-
-
-<!-- ##### MACRO gst_buffer_pool_free ##### -->
-<para>
-Free the given pool. This is dangerous, use gst_buffer_pool_unref() instead.
-</para>
-
-@pool: The pool to free
-
-
-<!-- ##### FUNCTION gst_buffer_pool_set_user_data ##### -->
-<para>
-</para>
-
-@pool:
-@user_data:
-
-
-<!-- ##### FUNCTION gst_buffer_pool_get_user_data ##### -->
-<para>
-</para>
-
-@pool:
-@Returns:
-
-
-<!-- ##### FUNCTION gst_buffer_pool_get_default ##### -->
-<para>
-
-</para>
-
-@buffer_size:
-@pool_size:
-@Returns:
-
-
-<!-- ##### FUNCTION gst_buffer_pool_default_free ##### -->
-<para>
-
-</para>
-
-@pool:
-
-
projects / platform / upstream / gstreamer.git / commitdiff