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baseparse: provide some more initial frame metadata in parse_frame

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... and document accordingly.
This commit is contained in:
Mark Nauwelaerts 2011-01-10 17:07:38 +01:00
parent 6a45c4f65e
commit 2c872ad913
1 changed files with 9 additions and 2 deletions
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11
gst/audioparsers/gstbaseparse.c
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@ -93,7 +93,10 @@
* frame contents and setting the caps, and buffer metadata (e.g.
* buffer timestamp and duration, or keyframe if applicable).
* (although the latter can also be done by GstBaseParse if it is
* appropriately configured, see below).
* appropriately configured, see below). Frame is provided with
* timestamp derived from upstream (as much as generally possible),
* duration obtained form configuration (see below), and offset
* if meaningful (in pull mode).
* </para></listitem>
* <listitem><para>
* Finally the buffer can be pushed downstream and parsing loop starts
@ -1469,6 +1472,9 @@ gst_base_parse_handle_and_push_frame (GstBaseParse * parse,
GST_BUFFER_OFFSET (buffer), GST_BUFFER_OFFSET (buffer),
GST_BUFFER_SIZE (buffer));
/* use default handler to provide initial (upstream) metadata */
gst_base_parse_parse_frame (parse, frame);
/* store offset as it might get overwritten */
offset = GST_BUFFER_OFFSET (buffer);
ret = klass->parse_frame (parse, frame);
@ -1504,7 +1510,8 @@ gst_base_parse_handle_and_push_frame (GstBaseParse * parse,
}
}
/* re-use default handler to add missing metadata as-much-as-possible */
/* again use default handler to add missing metadata;
* we may have new information on frame properties */
gst_base_parse_parse_frame (parse, frame);
if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer) &&
GST_BUFFER_DURATION_IS_VALID (buffer)) {