mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-19 00:01:23 +00:00
86 lines
1.9 KiB
C
86 lines
1.9 KiB
C
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gst/app/gstappsrc.h>
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#include <gst/app/gstappsink.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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typedef struct _App App;
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struct _App
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{
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GstElement *pipe;
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GstElement *src;
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GstElement *id;
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GstElement *sink;
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};
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App s_app;
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int
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main (int argc, char *argv[])
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{
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App *app = &s_app;
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int i;
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gst_init (&argc, &argv);
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app->pipe = gst_pipeline_new (NULL);
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g_assert (app->pipe);
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app->src = gst_element_factory_make ("appsrc", NULL);
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g_assert (app->src);
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gst_bin_add (GST_BIN (app->pipe), app->src);
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app->id = gst_element_factory_make ("identity", NULL);
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g_assert (app->id);
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gst_bin_add (GST_BIN (app->pipe), app->id);
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app->sink = gst_element_factory_make ("appsink", NULL);
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g_assert (app->sink);
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gst_bin_add (GST_BIN (app->pipe), app->sink);
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gst_element_link (app->src, app->id);
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gst_element_link (app->id, app->sink);
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gst_element_set_state (app->pipe, GST_STATE_PLAYING);
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for (i = 0; i < 10; i++) {
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GstBuffer *buf;
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void *data;
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buf = gst_buffer_new_and_alloc (100);
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data = gst_buffer_map (buf, NULL, NULL, GST_MAP_WRITE);
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memset (data, i, 100);
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gst_buffer_unmap (buf, data, 100);
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printf ("%d: pushing buffer for pointer %p, %p\n", i, data, buf);
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gst_app_src_push_buffer (GST_APP_SRC (app->src), buf);
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}
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/* push EOS */
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gst_app_src_end_of_stream (GST_APP_SRC (app->src));
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/* _is_eos() does not block and returns TRUE if there is not currently an EOS
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* to be retrieved */
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while (!gst_app_sink_is_eos (GST_APP_SINK (app->sink))) {
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GstBuffer *buf;
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/* pull the next item, this can return NULL when there is no more data and
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* EOS has been received */
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buf = gst_app_sink_pull_buffer (GST_APP_SINK (app->sink));
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printf ("retrieved buffer %p\n", buf);
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if (buf)
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gst_buffer_unref (buf);
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}
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gst_element_set_state (app->pipe, GST_STATE_NULL);
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return 0;
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}
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