gstreamer

I've written C++ wrapper for each Gstreamer types. They're simple and intuitive, so I don't think their implementation needs to be posted here (though I could post them (maybe at github) if need arises). The problem I'm facing is that I start playing a video (and simulteneously saving it to a file using gst tee element)....and while it is playing, I pause (from different thread) which is working great. However, when I want to resume it, it doesn't work: void pause() { _pipeline.state(GST_STATE_PAUSED) } void resume() { _pipeline.state(GST_STATE_PLAYING); } And here is the play() function where

I am trying to write a simple video streaming application that performs the following tasks: Get a frame from camera this part is working); Modify frame; Send to a gstreamer pipeline. Code: VideoWriter writer; writer.open("appsrc ! rtpvrawpay ! host =localhost port=5000" , 0, 30, cv::Size(IMAGE_WIDTH, IMAGE_HEIGHT), true); while(true){ //get frame etc. writer.write(frame); } VLC player can't see anything with command: vlc -vvv rtp://@localhost:5000 I tried: cv::VideoCapture cap("udpsrc port=5000 ! tsparse ! videoconvert ! appsink"); But it didn't start (no error log, just didn't get any frame)

I'm in a quandary. I'm following the following tutorial (specifically, 6.4.2) http://majorsilence.com/pygtk_audio_and_video_playback_gstreamer I'm running Python 2.7, PyGTK 2.24, and GStreamer WinBuilds 10.7 (the main installer and the SDK). When I try and compile the program, I get the following error: Traceback (most recent call last): File "", line 1, in import gst File "C:\Program Files\OSSBuild\GStreamer\v0.10.6\lib\site-packages\gst-0.10\gst__init__.py", line 193, in from _gst import * ImportError: DLL load failed: The specified module could not be found. How do I get the gst module to

i'm developer of AudioCuesheetEditor, an application for editing audio cuesheets. The new Version should be able to play back sound, so I would like to use gstreamer as backend. I investigated a bit in gstreamer and found out, that I need to use version 1.x with gstreamer-sharp 0.99.x binding. No problem, downloaded gstreamer-sharp 0.99.0, opened the solution with monodevelop (on linux) or xamarin (on windows) and tried to build the dll, but that didn't work. I get the error "namespace Gst.GLib" not found. I'm developing with xamarin/monodevelop and need to have a portable app (working with

Here is what I'm trying: gst-launch -v udpsrc port=1234 ! fakesink dump=1 I test with: gst-launch -v audiotestsrc ! udpsink host=127.0.0.1 port=1234 And everything works fine, I can see the packages arriving from the audiotestsrc Now lets test with the webcam source: gst-launch -v v4l2src device=/dev/video0 ! queue ! videoscale method=1 ! "video/x-raw-yuv,width=320,height=240" ! queue ! videorate ! "video/x-raw-yuv,framerate=(fraction)15/1" ! queue ! udpsink host=127.0.0.1 port=1234 And nothing happens, no package appears in the dump. Here is a logdump of what verbose shows in the server. Does

Related: How to extract audio from a video file using python? Extract audio from video as wav How to rip the audio from a video? My question is how could I extract wav audio track from video file, say video.avi ? I read many articles and everywhere people suggest to use (from Python) ffmpeg as a subprocess (because there are no reliable python bindings to ffmpeg - the only hope was PyFFmpeg but i found it is unmaintaned now). I don't know if it is right solution and i am looking for good one. I looked to gstreamer and found it nice but unable to satisfy my needs -- the only way I found to