Basic tutorial 3 does not compile

Jamie · September 18, 2025, 4:58pm

Hi,

Basic tutorial 3 does not compile (link below to source file). It uses gst_state_get_name() which according to the API docs does not come in until 1.28, which is not out yet.

This issue is backed up by the source code on the official tutorial webpage being different to that in the git repo. Bit of a bummer.

github.com/GStreamer/gstreamer

subprojects/gst-docs/examples/tutorials/basic-tutorial-3.c

main

#include <gst/gst.h>

#ifdef __APPLE__
#include <TargetConditionals.h>
#endif

/* Structure to contain all our information, so we can pass it to callbacks */
typedef struct _CustomData
{
  GstElement *pipeline;
  GstElement *source;
  GstElement *convert;
  GstElement *resample;
  GstElement *sink;
} CustomData;

/* Handler for the pad-added signal */
static void pad_added_handler (GstElement * src, GstPad * pad,
    CustomData * data);

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hectozul · November 11, 2025, 8:05pm

indeed.
Tutorial 3 runs only with latest dev build but upcoming tutorials like 5 will run only for 1.26.7 stable build as 1.27.2 binaries don´t include gtksink plugin.

Tutorial 3 and 4 will compile after rollback the variable name to gst_element_state_get_name instead of gst_state_get_name