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porting: hopefully clarify a little

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Wim Taymans 2013-03-27 17:08:51 +01:00
parent 700be18f11
commit 21851c0e04
1 changed files with 5 additions and 4 deletions
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9
docs/random/porting-to-1.0.txt
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@ -233,16 +233,17 @@ CHANGES
a GstBuffer that can then be retrieved with gst_buffer_peek_memory().
GST_BUFFER_DATA(), GST_BUFFER_MALLOCDATA(), GST_BUFFER_FREE_FUNC() and
GST_BUFFER_SIZE() are gone, along with the fields in GstBuffer. Use the
memory API to get access to the buffer data. GST_BUFFER_SIZE() can be
replaced with gst_buffer_get_size() but if also access to the data is
required, gst_buffer_map() can return both the size and data in one go.
GST_BUFFER_SIZE() are gone, along with the fields in GstBuffer.
The most common way to access all the data in a buffer is by using
gst_buffer_map() and gst_buffer_unmap(). These calls require you to specify
the access mode required to the data and will automatically merge and return
a writable copy of the data.
GST_BUFFER_SIZE() can be replaced with gst_buffer_get_size() but if also
access to the data is required, gst_buffer_map() can return both the size
and data in one go.
The buffer must be writable (gst_buffer_is_writable()) in order to modify
the fields, metadata or buffer memory. gst_buffer_make_writable() will not
automatically make a writable copy of the memory but will instead increase