Unable to put caps on audioconvert & audioresample.

[Sagar]

Hi,

the following is the code which i am trying to run (removed callback method before posting)

I get this error when I try to run this code. assertion failed: (gst_element_link_filtered (audioconvert1, audioresample,caps))

I am confused between caps and capsfilter as you can see in my code I am using both of them

#define GLIB_DISABLE_DEPRECATION_WARNINGS

#include <gst/gst.h>
#include <string.h>
#include <math.h>

static GMainLoop *loop;
//GstElement *play;
GstElement *pipeline;
GstElement *filesrc, *decodebin, *cutter, *valve, *audioconvert0, *audioconvert1, *audioresample, *capsfilter, *multifilesink;
gboolean above = FALSE;
guint64 maxaudioduration = 3 * GST_SECOND;
int isSpeaking =1;

int
main (int argc, char *argv[])
{

  GstBus *bus;
  GstCaps *caps;
 
  /* gstreamer */
  gst_init (&argc, &argv);
 
  /* create pipeline */
  pipeline = gst_pipeline_new (NULL);
 
  /* we need to run a GLib main loop to get the messages */
  loop = g_main_loop_new (NULL, FALSE);
 
  filesrc = gst_element_factory_make ("filesrc", "filesrc");
  g_object_set (G_OBJECT(filesrc), "location", "./videos/audiosilence.mp4", NULL);
  g_assert (filesrc);
 
  decodebin = gst_element_factory_make ("decodebin", "decodebin");
  g_assert (decodebin);
 
  cutter = gst_element_factory_make ("cutter", "cutter");
  g_object_set (G_OBJECT(cutter), "threshold-dB", -39.0, NULL);
  g_object_set (G_OBJECT(cutter), "run-length", 400000000, NULL);
  g_assert (cutter);  
 
  /*TODO t.*/
 
  valve = gst_element_factory_make ("valve", "valve");
  g_assert (valve);
     
  audioconvert0 = gst_element_factory_make ("audioconvert", "audioconvert0");
  g_assert (audioconvert0);
  audioconvert1 = gst_element_factory_make ("audioconvert", "audioconvert1");
  g_assert (audioconvert1);
 
  audioresample = gst_element_factory_make ("audioresample", "audioresample");
  g_assert (audioresample);
 
  caps = gst_caps_from_string("audio/x-raw, format=int, rate=16000, channels=1");
  g_assert (caps!=NULL);
  capsfilter = gst_element_factory_make("capsfilter", "capsfilter");
  g_object_set (capsfilter, "caps", caps, NULL);
  g_assert (capsfilter);
     
  multifilesink = gst_element_factory_make ("multifilesink", "multifilesink");
  g_object_set (G_OBJECT(multifilesink), "location", "./audio/user%02d.pcm", NULL);
  g_object_set (G_OBJECT(multifilesink), "next-file", 2, NULL);
  g_assert (multifilesink);  
 
 
  /* This is what I want to do */
/*  play = gst_parse_launch("-v -m -t filesrc location=./videos/audio.webm ! decodebin ! cutter threshold-dB=-39   !tee name=t ! queue ! fakesink t. ! queue ! valve name=valve ! audioconvert! audioresample !  audio/x-raw, rate=16000, channels=1  ! multifilesink location=./multifilesink/cutter%02d.pcm next-file=2", NULL);
  g_assert (play);*/
 
  /* BIN ADD MANY */
  gst_bin_add_many(GST_BIN (pipeline),filesrc, decodebin, audioconvert0, cutter, valve, audioconvert1, audioresample, capsfilter, multifilesink, NULL);
 
  /* Link Many */
  g_assert(gst_element_link_filtered (audioconvert1, audioresample,caps));
  gst_caps_unref(caps);
  g_assert(gst_element_link_many (filesrc, audioconvert0, cutter, valve, audioconvert1, audioresample, multifilesink, NULL));
 
   
  bus = gst_pipeline_get_bus (pipeline);
  gst_bus_add_watch (bus, my_bus_callback, NULL);

  gst_element_set_state (pipeline, GST_STATE_READY);
  gst_element_set_state (pipeline, GST_STATE_PLAYING);

  g_main_loop_run (loop);
 
  gst_element_set_state (pipeline, GST_STATE_NULL);
  gst_object_unref (GST_OBJECT (pipeline));
 
  gst_object_unref (bus);

  gst_object_unref (GST_OBJECT (filesrc));
    gst_object_unref (GST_OBJECT (decodebin));
  gst_object_unref (GST_OBJECT (cutter));
  gst_object_unref (GST_OBJECT (valve));
  gst_object_unref (GST_OBJECT (audioconvert0));
    gst_object_unref (GST_OBJECT (audioconvert1));
  gst_object_unref (GST_OBJECT (audioresample));
  gst_object_unref (GST_OBJECT (multifilesink));

  g_main_loop_unref (loop);
 
  return 0;
}

[Tim Müller]

On Fri, 2016-03-04 at 05:15 -0800, Sagar wrote:

Hi,

>   caps = gst_caps_from_string("audio/x-raw, format=int, rate=16000,
> channels=1");

This ("int") is not a known/valid raw audio format. Should be something
like S16LE or similar, check the output of

  gst-inspect-1.0 audioconvert

Cheers
 -Tim

--
Tim Müller, Centricular Ltd - http://www.centricular.com


_______________________________________________
gstreamer-devel mailing list
[hidden email]
https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel