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gst/playback/gstplaybin.c: Improve docs: point out that the application needs to assist playbin with buffering.

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Original commit message from CVS:
* gst/playback/gstplaybin.c:
Improve docs: point out that the application needs to assist playbin
with buffering.
This commit is contained in:
Tim-Philipp Müller 2007-02-23 18:49:29 +00:00
parent e8e648a76d
commit d35f4efe67
2 changed files with 20 additions and 9 deletions
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ChangeLog
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@ -1,3 +1,9 @@
2007-02-23 Tim-Philipp Müller <tim at centricular dot net>
* gst/playback/gstplaybin.c:
Improve docs: point out that the application needs to assist playbin
with buffering.
2007-02-23 Tim-Philipp Müller <tim at centricular dot net>
* gst-libs/gst/utils/install-plugins.c:

23
gst/playback/gstplaybin.c
View file

@ -161,28 +161,33 @@
* new_state=PAUSED), since before that the list might not be complete yet or
* not contain all available information (like language-codes).
* </para>
* <title>Buffering status</title>
* <title>Buffering</title>
* <para>
* Playbin handles buffering automatically. When playbin is buffering, it
* will post BUFFERING messages on the bus with a percentage value that
* shows the progress of the buffering. Applications may want to show this
* information to the user in some form or another. Here is how to extract
* the percentage information from the message:
* Playbin handles buffering automatically for the most part, but applications
* need to handle parts of the buffering process as well. Whenever playbin is
* buffering, it will post BUFFERING messages on the bus with a percentage
* value that shows the progress of the buffering process. Applications need
* to set playbin to PLAYING or PAUSED state in response to these messages.
* They may also want to convey the buffering progress to the user in some
* way. Here is how to extract the percentage information from the message
* (requires GStreamer >= 0.10.11):
* </para>
* <para>
* <programlisting>
* switch (GST_MESSAGE_TYPE (msg)) {
* case GST_MESSAGE_BUFFERING: {
* gint percent = 0;
* gst_structure_get_int (msg-&gt;structure, "buffer-percent", &amp;percent);
* gst_message_parse_buffering (msg, &amp;percent);
* g_print ("Buffering (%%u percent done)", percent);
* break;
* }
* ...
* }
* </programlisting>
* Note that application should keep the pipeline in the PAUSED state when a
* GST_MESSAGE_BUFFERING message is received with a buffer-percent < 100.
* Note that applications should keep/set the pipeline in the PAUSED state when
* a BUFFERING message is received with a buffer percent value < 100 and set
* the pipeline back to PLAYING state when a BUFFERING message with a value
* of 100 percent is received (if PLAYING is the desired state, that is).
* </para>
* <title>Embedding the video window in your application</title>
* <para>