Buffer.copyRegion

Creates a sub-buffer from @parent at @offset and @size. This sub-buffer uses the actual memory space of the parent buffer. This function will copy the offset and timestamp fields when the offset is 0. If not, they will be set to #GST_CLOCK_TIME_NONE and #GST_BUFFER_OFFSET_NONE. If @offset equals 0 and @size equals the total size of @buffer, the duration and offset end fields are also copied. If not they will be set to #GST_CLOCK_TIME_NONE and #GST_BUFFER_OFFSET_NONE.

MT safe.

class Buffer
copyRegion

Parameters

flags GstBufferCopyFlags

the #GstBufferCopyFlags

offset size_t

the offset into parent #GstBuffer at which the new sub-buffer begins.

size size_t

the size of the new #GstBuffer sub-buffer, in bytes. If -1, all data is copied.

Return: the new #GstBuffer or %NULL if the arguments were invalid.

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