Commit 8aa05d4c authored by Edward Hervey's avatar Edward Hervey 🤘

Wrap gst-plugins-base's video helper library.

Original commit message from CVS:
* configure.ac:
* gst/Makefile.am:
* gst/video.defs:
* gst/video.override:
* gst/videomodule.c: (initvideo):
Wrap gst-plugins-base's video helper library.
Partially fixes #565762
parent 2b32341a
2008-12-31 Edward Hervey <edward.hervey@collabora.co.uk>
* configure.ac:
* gst/Makefile.am:
* gst/video.defs:
* gst/video.override:
* gst/videomodule.c: (initvideo):
Wrap gst-plugins-base's video helper library.
Partially fixes #565762
2008-12-31 Edward Hervey <edward.hervey@collabora.co.uk>
* configure.ac:
......
......@@ -185,6 +185,7 @@ then
if test $GST_PB_MINOR_VERSION -ge "22"
then
AC_DEFINE_UNQUOTED(HAVE_GST_AUDIO, 1, [We can use the gst-audio library])
AC_DEFINE_UNQUOTED(HAVE_GST_VIDEO, 1, [We can use the gst-video library])
fi
else
......@@ -201,6 +202,7 @@ else
IGNORE_GST_PB_0_10_18=""
AC_DEFINE_UNQUOTED(HAVE_PLUGINS_INSTALL, 1, [We can use the plugins-install methods])
AC_DEFINE_UNQUOTED(HAVE_GST_AUDIO, 1, [We can use the gst-audio library])
AC_DEFINE_UNQUOTED(HAVE_GST_VIDEO, 1, [We can use the gst-video library])
fi
AC_DEFINE_UNQUOTED(HAVE_VIDEO_ORIENTATION_INTERFACE, 1, [We can use the videoorientation interface])
AC_SUBST(IGNORE_GST_0_10_13)
......@@ -217,6 +219,7 @@ AC_SUBST(IGNORE_GST_PB_0_10_18)
AC_SUBST(HAVE_VIDEO_ORIENTATION)
AC_SUBST(HAVE_PLUGINS_INSTALL)
AM_CONDITIONAL(HAVE_GST_AUDIO, $HAVE_GST_AUDIO)
AM_CONDITIONAL(HAVE_GST_VIDEO, $HAVE_GST_VIDEO)
dnl check for gstreamer-base; uninstalled is selected preferentially
PKG_CHECK_MODULES(GST_BASE, gstreamer-base-$GST_MAJORMINOR >= $GST_REQ,
......
......@@ -127,6 +127,29 @@ audio.c: $(AUDIO_DEFS) $(AUDIO_OVERRIDES) $(GEN_FILES)
endif
# GStreamer video bindings
VIDEO_OVERRIDES = video.override
VIDEO_DEFS = video.defs
CLEANFILES += video.c
EXTRA_DIST += $(VIDEO_DEFS) $(VIDEO_OVERRIDES)
defs_DATA += $(VIDEO_DEFS)
GEN_FILES += $(VIDEO_DEFS)
if HAVE_GST_VIDEO
video_lib = video.la
pygstexec_LTLIBRARIES += $(video_lib)
video_la_CFLAGS = $(common_cflags) $(GST_PLUGINS_BASE_CFLAGS)
video_la_LIBADD = $(common_libadd) $(GST_PLUGINS_BASE_LIBS) -lgstvideo-0.10
video_la_LDFLAGS = $(common_ldflags) \
-export-symbols-regex "^(initvideo|_PyGObject_API).*" $(GST_PLUGINS_BASE_LIBS)
video_la_SOURCES = videomodule.c gst-argtypes.c pygstminiobject.c
nodist_video_la_SOURCES = video.c
video.c: $(VIDEO_DEFS) $(VIDEO_OVERRIDES) $(GEN_FILES)
endif
.defs.c:
($(PYTHON) $(top_srcdir)/codegen/codegen.py \
--load-types $(srcdir)/arg-types.py \
......
;; -*- scheme -*-
; object definitions ...
(define-object VideoFilter
(in-module "Gst")
(parent "GstBaseTransform")
(c-name "GstVideoFilter")
(gtype-id "GST_TYPE_VIDEO_FILTER")
)
(define-object VideoSink
(in-module "Gst")
(parent "GstBaseSink")
(c-name "GstVideoSink")
(gtype-id "GST_TYPE_VIDEO_SINK")
)
;; Enumerations and flags ...
(define-enum VideoFormat
(in-module "Gst")
(c-name "GstVideoFormat")
(gtype-id "GST_TYPE_VIDEO_FORMAT")
(values
'("unknown" "GST_VIDEO_FORMAT_UNKNOWN")
'("i420" "GST_VIDEO_FORMAT_I420")
'("yv12" "GST_VIDEO_FORMAT_YV12")
'("yuy2" "GST_VIDEO_FORMAT_YUY2")
'("uyvy" "GST_VIDEO_FORMAT_UYVY")
'("ayuv" "GST_VIDEO_FORMAT_AYUV")
'("rgbx" "GST_VIDEO_FORMAT_RGBx")
'("bgrx" "GST_VIDEO_FORMAT_BGRx")
'("xrgb" "GST_VIDEO_FORMAT_xRGB")
'("xbgr" "GST_VIDEO_FORMAT_xBGR")
'("rgba" "GST_VIDEO_FORMAT_RGBA")
'("bgra" "GST_VIDEO_FORMAT_BGRA")
'("argb" "GST_VIDEO_FORMAT_ARGB")
'("abgr" "GST_VIDEO_FORMAT_ABGR")
'("rgb" "GST_VIDEO_FORMAT_RGB")
'("bgr" "GST_VIDEO_FORMAT_BGR")
'("y41b" "GST_VIDEO_FORMAT_Y41B")
'("y42b" "GST_VIDEO_FORMAT_Y42B")
)
)
;; From gstvideofilter.h
(define-function gst_video_filter_get_type
(c-name "gst_video_filter_get_type")
(return-type "GType")
)
;; From gstvideosink.h
(define-function gst_video_sink_get_type
(c-name "gst_video_sink_get_type")
(return-type "GType")
)
(define-function video_sink_center_rect
(c-name "gst_video_sink_center_rect")
(return-type "none")
(parameters
'("GstVideoRectangle" "src")
'("GstVideoRectangle" "dst")
'("GstVideoRectangle*" "result")
'("gboolean" "scaling")
)
)
;; From video.h
(define-function get_size
(c-name "gst_video_get_size")
(return-type "gboolean")
(parameters
'("GstPad*" "pad")
'("gint*" "width")
'("gint*" "height")
)
)
(define-function calculate_display_ratio
(c-name "gst_video_calculate_display_ratio")
(return-type "gboolean")
(parameters
'("guint*" "dar_n")
'("guint*" "dar_d")
'("guint" "video_width")
'("guint" "video_height")
'("guint" "video_par_n")
'("guint" "video_par_d")
'("guint" "display_par_n")
'("guint" "display_par_d")
)
)
(define-function format_parse_caps
(c-name "gst_video_format_parse_caps")
(return-type "gboolean")
(parameters
'("GstCaps*" "caps")
'("GstVideoFormat*" "format")
'("int*" "width")
'("int*" "height")
)
)
(define-function parse_caps_framerate
(c-name "gst_video_parse_caps_framerate")
(return-type "gboolean")
(parameters
'("GstCaps*" "caps")
'("int*" "fps_n")
'("int*" "fps_d")
)
)
(define-function parse_caps_pixel_aspect_ratio
(c-name "gst_video_parse_caps_pixel_aspect_ratio")
(return-type "gboolean")
(parameters
'("GstCaps*" "caps")
'("int*" "par_n")
'("int*" "par_d")
)
)
(define-method new_caps
(of-object "GstVideoFormat")
(c-name "gst_video_format_new_caps")
(return-type "GstCaps*")
(parameters
'("int" "width")
'("int" "height")
'("int" "framerate_n")
'("int" "framerate_d")
'("int" "par_n")
'("int" "par_d")
)
)
(define-function format_from_fourcc
(c-name "gst_video_format_from_fourcc")
(return-type "GstVideoFormat")
(parameters
'("guint32" "fourcc")
)
)
(define-method to_fourcc
(of-object "GstVideoFormat")
(c-name "gst_video_format_to_fourcc")
(return-type "guint32")
)
(define-method is_rgb
(of-object "GstVideoFormat")
(c-name "gst_video_format_is_rgb")
(return-type "gboolean")
)
(define-method is_yuv
(of-object "GstVideoFormat")
(c-name "gst_video_format_is_yuv")
(return-type "gboolean")
)
(define-method has_alpha
(of-object "GstVideoFormat")
(c-name "gst_video_format_has_alpha")
(return-type "gboolean")
)
(define-method get_row_stride
(of-object "GstVideoFormat")
(c-name "gst_video_format_get_row_stride")
(return-type "int")
(parameters
'("int" "component")
'("int" "width")
)
)
(define-method get_pixel_stride
(of-object "GstVideoFormat")
(c-name "gst_video_format_get_pixel_stride")
(return-type "int")
(parameters
'("int" "component")
)
)
(define-method get_component_width
(of-object "GstVideoFormat")
(c-name "gst_video_format_get_component_width")
(return-type "int")
(parameters
'("int" "component")
'("int" "width")
)
)
(define-method get_component_height
(of-object "GstVideoFormat")
(c-name "gst_video_format_get_component_height")
(return-type "int")
(parameters
'("int" "component")
'("int" "height")
)
)
(define-method get_component_offset
(of-object "GstVideoFormat")
(c-name "gst_video_format_get_component_offset")
(return-type "int")
(parameters
'("int" "component")
'("int" "width")
'("int" "height")
)
)
(define-method get_size
(of-object "GstVideoFormat")
(c-name "gst_video_format_get_size")
(return-type "int")
(parameters
'("int" "width")
'("int" "height")
)
)
(define-method convert
(of-object "GstVideoFormat")
(c-name "gst_video_format_convert")
(return-type "gboolean")
(parameters
'("int" "width")
'("int" "height")
'("int" "fps_n")
'("int" "fps_d")
'("GstFormat" "src_format")
'("gint64" "src_value")
'("GstFormat" "dest_format")
'("gint64*" "dest_value")
)
)
/* -*- Mode: C; c-basic-offset: 4 -*- */
/* gst-python
* Copyright (C) 2008 <edward.hervey@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
%%
headers
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define NO_IMPORT_PYGOBJECT
#include "common.h"
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/gstvideofilter.h>
#include <gst/video/gstvideosink.h>
#include "pygstminiobject.h"
GST_DEBUG_CATEGORY_EXTERN (pygst_debug);
#define GST_CAT_DEFAULT pygst_debug
/* Boonky define that allows for backwards compatibility with Python 2.4 */
#if PY_VERSION_HEX < 0x02050000
#define Py_ssize_t int
#endif
%%
modulename gst.video
%%
import gobject.GObject as PyGObject_Type
import gst.Object as PyGstObject_Type
import gst.Structure as PyGstStructure_Type
import gst.Element as PyGstElement_Type
import gst.Pad as PyGstPad_Type
import gst.Buffer as PyGstBuffer_Type
import gst.Message as PyGstMessage_Type
import gst.SystemClock as PyGstSystemClock_Type
import gst.BaseTransform as PyGstBaseTransform_Type
import gst.BaseSink as PyGstBaseSink_Type
%%
include
gstversion.override
%%
ignore-glob
_*
*init
*_free
*_get_type
/* -*- Mode: C; c-basic-offset: 4 -*- */
/* gst-python
* Copyright (C) 2008 Edward Hervey <edward.hervey@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
/* include this first, before NO_IMPORT_PYGOBJECT is defined */
#include <pygobject.h>
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/gstvideosink.h>
#include <gst/video/gstvideofilter.h>
void pyvideo_register_classes (PyObject *d);
void pyvideo_add_constants(PyObject *module, const gchar *strip_prefix);
extern PyMethodDef pyvideo_functions[];
GST_DEBUG_CATEGORY (pygst_debug); /* for python code */
DL_EXPORT(void)
initvideo (void)
{
PyObject *m, *d;
init_pygobject ();
m = Py_InitModule ("video", pyvideo_functions);
d = PyModule_GetDict (m);
pyvideo_register_classes (d);
pyvideo_add_constants (m, "GST_");
if (PyErr_Occurred ()) {
PyErr_Print ();
Py_FatalError ("can't initialize module gst.video");
}
}
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