Save rtsp video stream data into a .mp4 file without sounds, re-encoding with libx264.

gstreamer_rtsp_to_mp4.py

import sys

import gi

gi.require_version('Gst', '1.0')


def rtspsrc_pad_added(element, pad, target):
    caps = pad.query_caps(None).to_string()
    if caps.startswith('application/x-rtp, media=(string)video'):
        pad.link(target.get_static_pad('sink'))


def decodebin_pad_added(element, pad, target):
    caps = pad.query_caps(None).to_string()
    if caps.startswith('video/x-raw'):
        pad.link(target.get_static_pad('sink'))


def main():
    from gi.repository import Gst
    Gst.init(None)

    player = Gst.Pipeline.new('player')
    rtspsrc = Gst.ElementFactory.make('rtspsrc', 'rtspsrc')
    rtspsrc.set_property('location', 'rtsp://username:password@192.168.0.100/av_stream')
    rtspsrc.set_property('protocols', 'tcp')
    decodebin = Gst.ElementFactory.make('decodebin', 'decodebin')
    encoder = Gst.ElementFactory.make('x264enc', 'encoder')
    capsfilter = Gst.ElementFactory.make('capsfilter', 'capsfilter')
    encoder_caps = Gst.Caps.from_string('video/x-h264,profile=main,stream_format=byte-stream,tune=zerolatency ')
    capsfilter.set_property('caps', encoder_caps)
    mp4mux = Gst.ElementFactory.make('mp4mux', 'mp4mux')
    videosink = Gst.ElementFactory.make('filesink', 'videosink')
    videosink.set_property('location', 'bleh.mp4')
    player.add(rtspsrc)
    player.add(decodebin)
    player.add(encoder)
    player.add(capsfilter)
    player.add(mp4mux)
    player.add(videosink)

    rtspsrc.connect('pad-added', rtspsrc_pad_added, decodebin)
    decodebin.connect('pad-added', decodebin_pad_added, encoder)
    encoder.link(capsfilter)
    capsfilter.link(mp4mux)
    mp4mux.link(videosink)

    try:
        player.set_state(Gst.State.PLAYING)
        bus = player.get_bus()
        while True:
            msg = bus.timed_pop_filtered(1000000000, Gst.MessageType.ERROR | Gst.MessageType.EOS)
            if msg:
                t = msg.type
                if t == Gst.MessageType.ERROR:
                    err, dbg = msg.parse_error()
                    print('ERROR:', msg.src.get_name(), '\n', err.message)
                    if dbg:
                        print('Debugging info:', dbg)
                elif t == Gst.MessageType.EOS:
                    print('End-Of-Stream reached')
    except KeyboardInterrupt:
        rtspsrc.send_event(Gst.Event.new_eos())
        rtspsrc.set_state(Gst.State.NULL)


if __name__ == '__main__':
    main()