GStreamer qtmux/mp4mux command to code converting

toanjunifer — Fri, 18 Dec 2020 03:43:14 GMT

I trying to use qtmux to merge audio and video to *mp4 file with GStreamer. My pipeline looks like:

gst-launch-1.0 autovideosrc ! x264enc ! queue ! qtmux0. autoaudiosrc ! wavenc ! queue ! qtmux ! filesink location=file.mp4

videotestsrc --> x264enc -----\
                               >---> qtmux ---> filesink
audiotestsrc --> wavenc ------/

It's working good with command line. I didn't find any useful example in C to reach this goal. How can I do it with C code?

[UPDATE]

  gst_element_link_many(audiosource, wavenc, audioqueue, NULL);
  gst_element_link_many(videosource, x264enc, videoqueue, NULL);
  gst_element_link_many(qtmux, filesink, NULL);
  
  audio_pad     =  gst_element_get_request_pad (audioqueue, "src");
  mux_audio_pad = gst_element_get_static_pad (qtmux, "sink_1");
  gst_pad_link (audio_pad,mux_audio_pad); ERROR HERE

  video_pad     = gst_element_get_request_pad (videoqueue, "src");
  mux_video_pad = gst_element_get_static_pad(qtmux, "sink_2");
  gst_pad_link (video_pad,mux_video_pad); ERROR HERE

This is the way I merge audio and video to qtmux. But it's wronged in step link pads.

Re: GStreamer qtmux/mp4mux command to code converting

Zhiming_Liu — Mon, 01 Feb 2021 03:58:40 GMT

You need analysis https://github.com/GStreamer/gstreamer/blob/master/tools/gst-launch.c to follow the source code about how to parse args

Zhiming

topic Re: GStreamer qtmux/mp4mux command to code converting in i.MX Processors

GStreamer qtmux/mp4mux command to code converting

Re: GStreamer qtmux/mp4mux command to code converting