mirror of
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docutils based docs
Original commit message from CVS: docutils based docs
This commit is contained in:
David I. Lehn
parent
2fe200eeb3
commit
e787120878
10 changed files with 468 additions and 26 deletions
1
.gitignore
vendored
1
.gitignore
vendored
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@ -2,6 +2,7 @@ Makefile
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Makefile.in
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gst-python.spec
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aclocal.m4
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autoregen.sh
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config.cache
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config.guess
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config.h
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|
|
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40
AUTHORS
40
AUTHORS
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@ -1,11 +1,39 @@
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gst-python authors:
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.. gst-python AUTHORS
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.. This file writen with docutils markup (http://docutils.sourceforge.net/)
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David I. Lehn <dlehn@users.sourceforge.net>
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Contact
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=======
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Please feel free to contact the developers. They hang out on IRC_ and the
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mailing lists_.
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.. _IRC: http://gstreamer.net/dev/
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.. _lists: http://gstreamer.net/contact/lists.php
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Authors
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=======
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Maintainer
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----------
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* David I. Lehn <dlehn@users.sourceforge.net>
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Contributions
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-------------
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Patches, suggestions, and other help:
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* Kenichi Sato <ksato@users.sourceforge.net>)
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Much of the framework for gst-python stolen from gtk and gconf bindings by:
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James Henstridge <james@daa.com.au>
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Johan Dahlin <jdahlin@telia.com>
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Matt Wilson <msw@redhat.com>
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and many more...
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* James Henstridge <james@daa.com.au>
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* Johan Dahlin <jdahlin@telia.com>
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* Matt Wilson <msw@redhat.com>
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* and many more...
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GStreamer
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---------
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And of course, none of this would be possible without the extreme hacker mojo
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of the whole GStreamer crew!
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|
|
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@ -4,6 +4,9 @@
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* configure.ac, Makefile.am, pkgconfig/*: add pkgconfig support
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* AUTHORS, NEWS, README, TODO, docs/HEAD.in, docs/Makefile.am,
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docs/docutils.conf, docs/gst-python.css: docutils based docs
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2003-06-11 Thomas Vander Stichele <thomas at apestaart dot org>
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* gst-python.spec.in: fix
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10
NEWS
10
NEWS
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@ -0,0 +1,10 @@
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.. gst-python NEWS
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.. This file writen with docutils markup (http://docutils.sourceforge.net/)
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News
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====
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2003-06-xx - 0.1.0 released
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---------------------------
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* first release
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184
README
184
README
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@ -1,36 +1,186 @@
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gst-python
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==========
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.. gst-python README
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.. This file writen with docutils markup (http://docutils.sourceforge.net/)
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This is gst-python, the Python[1] bindings for the GStreamer[2] project.
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About
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=====
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For further help ask on a GStreamer mailing list or IRC.
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This is **gst-python**, the Python_ bindings for the GStreamer_ project. The
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bindings provide access to almost all of the GStreamer C API through an object
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oriented Python API.
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[1] http://www.python.org/
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[2] http://www.gstreamer.net/
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.. _Python: http://www.python.org/
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.. _GStreamer: http://www.gstreamer.net/
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build/install
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-------------
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Requirements
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============
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For build and install information please refer to the "INSTALL" file.
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Installation is optional, gst-python can be used from the build directory.
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* Python_ 2.2
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* GStreamer_ 0.6.0
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* PyGTK_ 1.99.14
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.. _PyGTK: http://www.daa.com.au/~james/pygtk/
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using
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-----
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Build/Install
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=============
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For build and install information please refer to the "``INSTALL``" file.
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Installation is optional, gst-python can be used from the build directory. The
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quick instructions: build and install PyGTK and GStreamer then build
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gst-python::
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$ ./configure && make
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Using
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=====
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You either need to install the package or add the root directory to your
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Python path.
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Python path::
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$ export PYTHONPATH=$PYTHONPATH:`pwd`
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Try running an example:
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Try running examples::
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$ cd examples/gstreamer/
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$ python cp.py <input file> <output file>
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$ cmp <input file> <output file>
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$ python vorbisplay.py <a vorbis file>
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documentation
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-------------
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Documentation
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=============
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The examples are the best documentation for now. Read them.
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General/API
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-----------
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The gst-python bindings are directly generated from the GStreamer headers.
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Look at the GStreamer documentation_ for general API and programming issues.
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In most cases the GStreamer classes and boxed types map directly to Python
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classes. The function-based methods also map onto Python object methods.
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.. _documentation: http://www.gstreamer.net/docs/
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Divergence From C API
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---------------------
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Due to the nature of C and Python some of the GStreamer API is handled slightly
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different in Python than C. There are a few of the GStreamer C functions that
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are not yet provided in gst-python. These are mostly related to creating
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`Python Elements`_. A few others remain that return GList* or return values in
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their parameters. These have been wrapped as needed. Please file a bug_ if
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you need one of the unwrapped functions.
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API changes:
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* ``gst_props_entry_get_type`` is accessed through
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``PropsEntry.get_props_type()``. This is due to the ``_get_type`` function
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extention being normally used for ``GType`` access and is inaccessable
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otherwise.
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* Special `Pipeline Iteration`_ support through the following functions:
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* ``add_iterate_bin(bin) -> id``: used to iterate a bin with a C idle loop
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callback instead of a Python callback.
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* ``remove_iterate_bin(id)``: used to remove the ``add_iterate_bin``
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idle loop callback id.
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* ``iterate_bin_all(bin)``: releases locks, calls ``gst_bin_iterate``
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until it returns 0, reacquires locks and completes
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* `Python Elements`_ support through the following horribly inefficient
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functions:
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* ``Buffer.get_data() -> string``: converts buffer data to a string and
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returns it.
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* ``Buffer.set_data(string)``: sets the buffer data from a string.
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Examples
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--------
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The best documentation right now is the examples in
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"``./examples/gstreamer/``". Read them.
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Threads
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-------
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Threading is a tricky subject for gst-python. There are a few lock you need to
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be aware of:
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* GIL
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The CPython interpreter is single threaded. Code execution in the
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interpreter is protected by a Global Interpreter Lock (GIL). This means that
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C code can run in other threads in parallel but only one thread will be
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running Python code at any one point. Most of this is handled internally by
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means of locking and unlocking the GIL at appropriate times. Callback code
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and other various code paths between Python and C *should* be setup to do
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proper GIL handling.
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|
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However, it is possible that you may encounter a situation where proper
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locking is not done. This is most likely due to calling a wrapper function
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that follows a sequence like this:
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- Python -> wrapper function
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- wrapper function -> C GStreamer function
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- C GStreamer function -> side effect code
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- side effect code -> callback
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- callback -> tries to acquire Python GIL but it's already locked
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- deadlocked...
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This has been fixed for commonly called functions that have side effects
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which are likely to re-enter the interpreter. It just involves lock/unlock
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around the call to the C gst function. But doing it for every function could
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have performance issues and, more importantly, is not an automated process.
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Please file a bug_ if you have problems related to this and need other
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functions to be specially handled.
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* Gdk lock
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If you are using PyGTK you will have to deal with Gdk locking. Make sure
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you're holding the Gdk lock while executing Gdk/Gtk calls. See PyGTK
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documentation and FAQ list for more information.
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Pipeline Iteration
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------------------
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There are a number of ways to iterate pipelines. ./examples/gstreamer/bps.py
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is a small test program to measure the performance in buffers per second of
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these various techniques. Please see the example for how to use these
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techniques.
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* Bin.iterate() in Python from the gtk idle loop
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* gst_bin_iterate() in C from gtk idle loop
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* Bin.iterate() in a Python loop
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* gst_bin_iterate() in a C loop
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|
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The method you chose depends on your application. The idle loop methods are
|
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slightly slower yet more flexible. Probably useful for interactive GUI
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applications.
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The basic loop methods are faster but probably more use for non-interactive
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applications. A variation on these loops would be to also check for a stop
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condition which may provide performance increase and some level of control.
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Python Elements
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||||
---------------
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It is possible to write Python subclasses of GstElement. This support is very
|
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primitive and likely to change. See "``./examples/gstreamer/rot13.py``" for an
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example.
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Bugs
|
||||
====
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||||
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*Please* submit gst-python bugs, patches, or suggestions to GNOME Bugzilla_,
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||||
Product: GStreamer, Component: gst-python. Thank you.
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.. _Bugzilla: http://bugzilla.gnome.org/
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||||
.. _bug: `Bugs`_
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||||
|
|
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16
TODO
16
TODO
|
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@ -1,17 +1,27 @@
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|||
gst-python TODO
|
||||
===============
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||||
.. gst-python TODO
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||||
.. This file writen with docutils markup (http://docutils.sourceforge.net/)
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||||
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||||
TODO
|
||||
====
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||||
|
||||
- handle more of the functions that need manual wrapping code
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- add check that pygtk built with --enable-thread
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||||
- improve Python gstreamer.Element creation
|
||||
- perhaps make drop _set_foo_function() calls in favor of object methods
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||||
|
||||
- perhaps drop _set_foo_function() calls in favor of object methods
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||||
- sane buffer handling with buffer type or Numeric?
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||||
|
||||
- docs
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||||
|
||||
- API ref
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||||
- manual
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- tutorial
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||||
|
||||
- more examples
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||||
- convert build system to distutils
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||||
- wrap other GStreamer helper libs
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||||
- add some standard widgets
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||||
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||||
- gtk video widget (similar to widget gst-player is using)
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||||
- testsuite
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||||
|
|
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13
docs/HEAD.in
Normal file
13
docs/HEAD.in
Normal file
|
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@ -0,0 +1,13 @@
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|||
.. gst-python HEAD.in
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||||
.. This file writen with docutils markup (http://docutils.sourceforge.net/)
|
||||
|
||||
==========
|
||||
gst-python
|
||||
==========
|
||||
|
||||
:Author: David I. Lehn
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||||
:Contact: dlehn@users.sourceforge.net
|
||||
:Web site: http://www.gstreamer.net/bindings/python/
|
||||
:Version: @VERSION@
|
||||
|
||||
.. contents::
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27
docs/Makefile.am
Normal file
27
docs/Makefile.am
Normal file
|
|
@ -0,0 +1,27 @@
|
|||
EXTRA_DIST = HEAD.in docutils.conf gst-python.css
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|
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DOCS = \
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$(srcdir)/HEAD \
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$(top_srcdir)/NEWS \
|
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$(top_srcdir)/README \
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$(top_srcdir)/TODO \
|
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$(top_srcdir)/AUTHORS
|
||||
|
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gst-python.html: docutils.conf ${DOCS}
|
||||
@if [ ! $$DOCUTILSHOME ]; then \
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echo "ERROR: Please set \$$DOCUTILSHOME"; \
|
||||
exit 1; \
|
||||
fi
|
||||
@if [ ! -r $$DOCUTILSHOME/tools/html.py ]; then \
|
||||
echo "\$$DOCUTILSHOME/tools/html.py not found"; \
|
||||
exit 1; \
|
||||
fi
|
||||
rm -f gst-python.txt
|
||||
for doc in ${DOCS}; do \
|
||||
cat $$doc >> gst-python.txt; \
|
||||
printf "\n" >> gst-python.txt; \
|
||||
done
|
||||
PYTHONPATH=$$PYTHONPATH:$$DOCUTILSHOME $$DOCUTILSHOME/tools/html.py gst-python.txt gst-python.html
|
||||
lynx -dump -force_html gst-python.html > gst-python.out
|
||||
|
||||
CLEANFILES = gst-python.txt gst-python.html
|
||||
9
docs/docutils.conf
Normal file
9
docs/docutils.conf
Normal file
|
|
@ -0,0 +1,9 @@
|
|||
[options]
|
||||
|
||||
# These entries affect all processing:
|
||||
source-link: 1
|
||||
datestamp: %Y-%m-%d %H:%M UTC
|
||||
generator: 1
|
||||
|
||||
# These entries affect HTML output:
|
||||
stylesheet-path: gst-python.css
|
||||
191
docs/gst-python.css
Normal file
191
docs/gst-python.css
Normal file
|
|
@ -0,0 +1,191 @@
|
|||
/*
|
||||
:Author: David Goodger
|
||||
:Contact: goodger@users.sourceforge.net
|
||||
:date: $Date$
|
||||
:version: $Revision$
|
||||
:copyright: This stylesheet has been placed in the public domain.
|
||||
|
||||
Default cascading style sheet for the HTML output of Docutils.
|
||||
*/
|
||||
|
||||
.first {
|
||||
margin-top: 0 }
|
||||
|
||||
.last {
|
||||
margin-bottom: 0 }
|
||||
|
||||
a.toc-backref {
|
||||
text-decoration: none ;
|
||||
color: black }
|
||||
|
||||
dd {
|
||||
margin-bottom: 0.5em }
|
||||
|
||||
div.abstract {
|
||||
margin: 2em 5em }
|
||||
|
||||
div.abstract p.topic-title {
|
||||
font-weight: bold ;
|
||||
text-align: center }
|
||||
|
||||
div.attention, div.caution, div.danger, div.error, div.hint,
|
||||
div.important, div.note, div.tip, div.warning {
|
||||
margin: 2em ;
|
||||
border: medium outset ;
|
||||
padding: 1em }
|
||||
|
||||
div.attention p.admonition-title, div.caution p.admonition-title,
|
||||
div.danger p.admonition-title, div.error p.admonition-title,
|
||||
div.warning p.admonition-title {
|
||||
color: red ;
|
||||
font-weight: bold ;
|
||||
font-family: sans-serif }
|
||||
|
||||
div.hint p.admonition-title, div.important p.admonition-title,
|
||||
div.note p.admonition-title, div.tip p.admonition-title {
|
||||
font-weight: bold ;
|
||||
font-family: sans-serif }
|
||||
|
||||
div.dedication {
|
||||
margin: 2em 5em ;
|
||||
text-align: center ;
|
||||
font-style: italic }
|
||||
|
||||
div.dedication p.topic-title {
|
||||
font-weight: bold ;
|
||||
font-style: normal }
|
||||
|
||||
div.figure {
|
||||
margin-left: 2em }
|
||||
|
||||
div.footer, div.header {
|
||||
font-size: smaller }
|
||||
|
||||
div.system-messages {
|
||||
margin: 5em }
|
||||
|
||||
div.system-messages h1 {
|
||||
color: red }
|
||||
|
||||
div.system-message {
|
||||
border: medium outset ;
|
||||
padding: 1em }
|
||||
|
||||
div.system-message p.system-message-title {
|
||||
color: red ;
|
||||
font-weight: bold }
|
||||
|
||||
div.topic {
|
||||
margin: 2em }
|
||||
|
||||
h1.title {
|
||||
text-align: center }
|
||||
|
||||
h2.subtitle {
|
||||
text-align: center }
|
||||
|
||||
hr {
|
||||
width: 75% }
|
||||
|
||||
ol.simple, ul.simple {
|
||||
margin-bottom: 1em }
|
||||
|
||||
ol.arabic {
|
||||
list-style: decimal }
|
||||
|
||||
ol.loweralpha {
|
||||
list-style: lower-alpha }
|
||||
|
||||
ol.upperalpha {
|
||||
list-style: upper-alpha }
|
||||
|
||||
ol.lowerroman {
|
||||
list-style: lower-roman }
|
||||
|
||||
ol.upperroman {
|
||||
list-style: upper-roman }
|
||||
|
||||
p.caption {
|
||||
font-style: italic }
|
||||
|
||||
p.credits {
|
||||
font-style: italic ;
|
||||
font-size: smaller }
|
||||
|
||||
p.label {
|
||||
white-space: nowrap }
|
||||
|
||||
p.topic-title {
|
||||
font-weight: bold }
|
||||
|
||||
pre.address {
|
||||
margin-bottom: 0 ;
|
||||
margin-top: 0 ;
|
||||
font-family: serif ;
|
||||
font-size: 100% }
|
||||
|
||||
pre.line-block {
|
||||
font-family: serif ;
|
||||
font-size: 100% }
|
||||
|
||||
pre.literal-block, pre.doctest-block {
|
||||
margin-left: 2em ;
|
||||
margin-right: 2em ;
|
||||
background-color: #eeeeee }
|
||||
|
||||
span.classifier {
|
||||
font-family: sans-serif ;
|
||||
font-style: oblique }
|
||||
|
||||
span.classifier-delimiter {
|
||||
font-family: sans-serif ;
|
||||
font-weight: bold }
|
||||
|
||||
span.interpreted {
|
||||
font-family: sans-serif }
|
||||
|
||||
span.option {
|
||||
white-space: nowrap }
|
||||
|
||||
span.option-argument {
|
||||
font-style: italic }
|
||||
|
||||
span.pre {
|
||||
white-space: pre }
|
||||
|
||||
span.problematic {
|
||||
color: red }
|
||||
|
||||
table {
|
||||
margin-top: 0.5em ;
|
||||
margin-bottom: 0.5em }
|
||||
|
||||
table.citation {
|
||||
border-left: solid thin gray ;
|
||||
padding-left: 0.5ex }
|
||||
|
||||
table.docinfo {
|
||||
margin: 2em 4em }
|
||||
|
||||
table.footnote {
|
||||
border-left: solid thin black ;
|
||||
padding-left: 0.5ex }
|
||||
|
||||
td, th {
|
||||
padding-left: 0.5em ;
|
||||
padding-right: 0.5em ;
|
||||
vertical-align: top }
|
||||
|
||||
th.docinfo-name, th.field-name {
|
||||
font-weight: bold ;
|
||||
text-align: left ;
|
||||
white-space: nowrap }
|
||||
|
||||
h1 tt, h2 tt, h3 tt, h4 tt, h5 tt, h6 tt {
|
||||
font-size: 100% }
|
||||
|
||||
tt {
|
||||
background-color: #eeeeee }
|
||||
|
||||
ul.auto-toc {
|
||||
list-style-type: none }
|
||||
Loading…
Reference in a new issue