I am using gst library to play multiple audio files and I have a

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Asked: June 18, 20262026-06-18T10:51:26+00:00 2026-06-18T10:51:26+00:00

I am using gst library to play multiple audio files and I have a

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I am using gst library to play multiple audio files and I have a problem:

Error: Internal data flow error

This is my code (without other demuxer and sink init):

GstElement *elm1, *elm2;

elm1  = gst_element_factory_make ("filesrc", "file1.ogg");
elm2  = gst_element_factory_make ("filesrc", "file2.ogg");

g_object_set (G_OBJECT (elm1), "location", "file1.ogg", NULL);
g_object_set (G_OBJECT (elm2), "location", "file2.ogg", NULL);

GstBus *bus;

bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
bus_watch_id = gst_bus_add_watch (bus, bus_call, loop);
gst_object_unref (bus);

gst_bin_add_many (GST_BIN (pipeline), elm1, elm2, demuxer, sink, NULL);

gst_element_link_many (elm1, elm2, demuxer);

g_signal_connect (demuxer, "pad-added", G_CALLBACK (on_pad_added), sink);
gst_element_set_state (pipeline, GST_STATE_PLAYING);

Did I make something wrong?