Remove camera_pygst.py depreciated.

kivy/core/camera/camera_pygst.py

@@ -1,103 +0,0 @@
-'''
-GStreamer Camera
-================
-
-Implement CameraBase with GStreamer, based on PyGST
-'''
-
-__all__ = ('CameraPyGst', )
-
-from kivy.clock import Clock
-from kivy.graphics.texture import Texture
-from kivy.core.camera import CameraBase
-
-try:
-    import pygst
-    if not hasattr(pygst, '_gst_already_checked'):
-        pygst.require('0.10')
-        pygst._gst_already_checked = True
-    import gst
-except:
-    raise
-
-# install the gobject iteration
-from kivy.support import install_gobject_iteration
-install_gobject_iteration()
-
-
-class CameraPyGst(CameraBase):
-    '''Implementation of CameraBase using GStreamer
-
-    :Parameters:
-        `video_src`: str, default is 'v4l2src'
-            Other tested options are: 'dc1394src' for firewire
-            dc camera (e.g. firefly MV). Any gstreamer video source
-            should potentially work.
-            Theoretically a longer string using "!" can be used
-            describing the first part of a gstreamer pipeline.
-    '''
-
-    def __init__(self, **kwargs):
-        self._pipeline = None
-        self._camerasink = None
-        self._decodebin = None
-        self._texturesize = None
-        self._video_src = kwargs.get('video_src', 'v4l2src')
-        super(CameraPyGst, self).__init__(**kwargs)
-
-    def init_camera(self):
-        # TODO: This doesn't work when camera resolution is resized at runtime.
-        # There must be some other way to release the camera?
-        if self._pipeline:
-            self._pipeline = None
-
-        video_src = self._video_src
-        if video_src == 'v4l2src':
-            video_src += ' device=/dev/video%d' % self._index
-        elif video_src == 'dc1394src':
-            video_src += ' camera-number=%d' % self._index
-
-        GL_CAPS = 'video/x-raw-rgb,red_mask=(int)0xff0000,' + \
-                  'green_mask=(int)0x00ff00,blue_mask=(int)0x0000ff'
-        pl = '%s ! decodebin name=decoder ! ffmpegcolorspace ! appsink ' + \
-             'name=camerasink emit-signals=True caps=%s'
-        self._pipeline = gst.parse_launch(pl % (video_src, GL_CAPS))
-        self._camerasink = self._pipeline.get_by_name('camerasink')
-        self._camerasink.connect('new-buffer', self._gst_new_buffer)
-        self._decodebin = self._pipeline.get_by_name('decoder')
-
-        if self._camerasink and not self.stopped:
-            self.start()
-
-    def _gst_new_buffer(self, *largs):
-        self._format = 'rgb'
-        frame = self._camerasink.emit('pull-buffer')
-        if frame is None:
-            return
-        self._buffer = frame.data
-        if self._texturesize is None:
-            # try to get the camera image size
-            for x in self._decodebin.src_pads():
-                for cap in x.get_caps():
-                    self._texturesize = (cap['width'], cap['height'])
-                    Clock.schedule_once(self._update)
-                    return
-        Clock.schedule_once(self._update)
-
-    def start(self):
-        super(CameraPyGst, self).start()
-        self._pipeline.set_state(gst.STATE_PLAYING)
-
-    def stop(self):
-        super(CameraPyGst, self).stop()
-        self._pipeline.set_state(gst.STATE_PAUSED)
-
-    def _update(self, dt):
-        if self._buffer is None:
-            return
-        if self._texture is None and self._texturesize is not None:
-            self._texture = Texture.create(
-                size=self._texturesize, colorfmt='rgb')
-            self._texture.flip_vertical()
-            self.dispatch('on_load')
-        self._copy_to_gpu()