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Created by zhiqiangxu@zhiqiangxu

Hello world tuto not work (no window opened) on macOS High Sierra

$ cat /tmp/tuto.c
#include <gst/gst.h>

int
main (int argc, char *argv[])
{
  GstElement *pipeline;
  GstBus *bus;
  GstMessage *msg;

  /* Initialize GStreamer */
  gst_init (&argc, &argv);

  /* Build the pipeline */
  pipeline =
      gst_parse_launch
      ("playbin uri=https://www.freedesktop.org/software/gstreamer-sdk/data/media/sintel_trailer-480p.webm",
      NULL);

  /* Start playing */
  gst_element_set_state (pipeline, GST_STATE_PLAYING);

  /* Wait until error or EOS */
  bus = gst_element_get_bus (pipeline);
  msg =
      gst_bus_timed_pop_filtered (bus, GST_CLOCK_TIME_NONE,
      GST_MESSAGE_ERROR | GST_MESSAGE_EOS);

  /* Free resources */
  if (msg != NULL)
    gst_message_unref (msg);
  gst_object_unref (bus);
  gst_element_set_state (pipeline, GST_STATE_NULL);
  gst_object_unref (pipeline);
  return 0;
}

$ gcc -framework GStreamer -I/Library/Frameworks/GStreamer.framework/Headers /tmp/tuto.c -o gst
$ ./gst

It runs ok without a window opened(stays running for the length of the media without showing anything).

The windows opens with no problem if I run the pipeline with /Library/Frameworks/GStreamer.framework/Commands/gst-launch-1.0:

/Library/Frameworks/GStreamer.framework/Commands/gst-launch-1.0 playbin uri=https://www.freedesktop.org/software/gstreamer-sdk/data/media/sintel_trailer-480p.webm

I installed https://gstreamer.freedesktop.org/data/pkg/osx/1.16.0/gstreamer-1.0-1.16.0-x86_64.pkg and https://gstreamer.freedesktop.org/data/pkg/osx/1.16.0/gstreamer-1.0-devel-1.16.0-x86_64.pkg.

A few strange observations:

$ otool -L ./gst 
./gst:
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/GStreamer (compatibility version 0.0.0, current version 0.0.0)
	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.50.4)
$ otool -L /Library/Frameworks/GStreamer.framework/Versions/1.0/lib/GStreamer
/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/GStreamer:
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/GStreamer (compatibility version 0.0.0, current version 0.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstcontroller-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstnet-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstallocators-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstapp-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstfft-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstpbutils-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstaudio-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstriff-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstrtp-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstrtsp-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgio-2.0.0.dylib (compatibility version 5601.0.0, current version 5601.1.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstsdp-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgsttag-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstgl-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstbadaudio-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstcodecparsers-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstinsertbin-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstmpegts-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstplayer-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstvideo-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstbase-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstreamer-1.0.0.dylib (compatibility version 1591.0.0, current version 1591.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgobject-2.0.0.dylib (compatibility version 5601.0.0, current version 5601.1.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libglib-2.0.0.dylib (compatibility version 5601.0.0, current version 5601.1.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libintl.8.dylib (compatibility version 10.0.0, current version 10.5.0)
	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.200.5)

$ otool -L /Library/Frameworks/GStreamer.framework/Commands/gst-launch-1.0 
/Library/Frameworks/GStreamer.framework/Commands/gst-launch-1.0:
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgstreamer-1.0.0.dylib (compatibility version 1601.0.0, current version 1601.0.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libglib-2.0.0.dylib (compatibility version 5601.0.0, current version 5601.1.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libintl.8.dylib (compatibility version 10.0.0, current version 10.5.0)
	/Library/Frameworks/GStreamer.framework/Versions/1.0/lib/libgobject-2.0.0.dylib (compatibility version 5601.0.0, current version 5601.1.0)
	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.200.5)

So the hello world example seems to be linking with version 1591.0.0 even though the installed gstreamer version is 1601.0.0?

Edited by zhiqiangxu