<div dir="ltr"><div>It sounds like Open CV may be better for this. I have done it before for that. just thought if I was using gstreamer for everyting else, I could use it here too. Bummer, </div>Jason </div><div class="gmail_extra"> <div class="gmail_quote">On Sat, Aug 24, 2013 at 12:15 PM, Andrey Nechypurenko <<a href="mailto:andreynech@googlemail.com" target="_blank">andreynech@googlemail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div class="HOEnZb"><div class="h5">On 24 August 2013 10:14, Jason (spot) Brower <<a href="mailto:encompass@gmail.com">encompass@gmail.com</a>> wrote: > I can take the picture and save the image to a file using just Gstreamer. > But I need to work with the image before I save it anyway, so how can I > convert it to PIL after I take the picture. > A code example would be handy. I have googled and no found it as far as I > have searched. </div></div>One possible way would be to create the pipeline which ends with fakesink element and use it's handoff mechanism to get access to raw frame. For example: videotestsrc is-live=true ! video/x-raw-yuv,width=640,height=480,framerate=30/1 ! ffmpegcolorspace ! video/x-raw-rgb, bpp=32, depth=32 ! fakesink sync=1 The following code illustrates how to update OpenGL texture with it. Here on_gst_buffer(self, fakesink, buff, pad, data=None) will be invoked by gstreamer for each new frame and data contains raw decoded frame in format specified by the caps filter in front of fakesink. import ctypes import gobject import gst class Receiver(object): def __init__(self, video_tex_id, pipeline_string): self.tex_updated = True self.texdata = (ctypes.c_ubyte * 640 * 480 * 4)() self.video_tex_id = video_tex_id # Create GStreamer pipeline self.pipeline = gst.parse_launch(pipeline_string) # Create bus to get events from GStreamer pipeline self.bus = self.pipeline.get_bus() self.bus.add_signal_watch() self.bus.connect('message::eos', self.on_eos) self.bus.connect('message::error', self.on_error) self.fakesink = self.pipeline.get_by_name('fakesink0') self.fakesink.props.signal_handoffs = True self.fakesink.connect("handoff", self.on_gst_buffer) self.pipeline.set_state(gst.STATE_PLAYING) def on_gst_buffer(self, fakesink, buff, pad, data=None): self.tex_updated = False ctypes.memmove(self.texdata, buff.data, buff.size) return gst.FLOW_OK def updateTexture(self): if not self.tex_updated and not self.texdata == None: glBindTexture(GL_TEXTURE_2D, self.video_tex_id) glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 640, 480, GL_RGBA, GL_UNSIGNED_BYTE, self.texdata) self.tex_updated = True def on_eos(self, bus, msg): print('on_eos(): seeking to start of video') self.pipeline.seek_simple( gst.FORMAT_TIME, gst.SEEK_FLAG_FLUSH | gst.SEEK_FLAG_KEY_UNIT, 0L ) def on_error(self, bus, msg): print('on_error():', msg.parse_error()) HTH, Andrey. _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </blockquote></div> </div>