tests: audiodecoder: add basic playback test for audio decoder

Simple test that just check that audio decoding works as expected

https://bugzilla.gnome.org/show_bug.cgi?id=722144

tests/check/Makefile.am

@@ -104,6 +104,7 @@ check_PROGRAMS = \
 	libs/libsabi \
 	libs/audio \
 	libs/audiocdsrc \
+	libs/audiodecoder \
 	libs/discoverer \
 	libs/fft \
 	libs/navigation \
@@ -200,6 +201,16 @@ libs_audio_LDADD = \
 	$(GST_BASE_LIBS) \
 	$(LDADD)
 
+libs_audiodecoder_CFLAGS = \
+	$(GST_PLUGINS_BASE_CFLAGS) \
+	$(GST_BASE_CFLAGS) \
+	$(AM_CFLAGS)
+
+libs_audiodecoder_LDADD = \
+	$(top_builddir)/gst-libs/gst/audio/libgstaudio-@GST_API_VERSION@.la \
+	$(GST_BASE_LIBS) \
+	$(LDADD)
+
 libs_audiocdsrc_CFLAGS = \
 	$(GST_PLUGINS_BASE_CFLAGS) \
 	$(GST_BASE_CFLAGS) \

tests/check/libs/.gitignore

@@ -1,6 +1,7 @@
 .dirstamp
 audio
 audiocdsrc
+audiodecoder
 discoverer
 fft
 gstlibscpp

tests/check/libs/audiodecoder.c

@@ -0,0 +1,294 @@
+/* GStreamer
+ *
+ * Copyright (C) 2014 Samsung Electronics. All rights reserved.
+ *   Author: Thiago Santos <ts.santos@sisa.samsung.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include <gst/gst.h>
+#include <gst/check/gstcheck.h>
+#include <gst/audio/audio.h>
+#include <gst/app/app.h>
+
+static GstPad *mysrcpad, *mysinkpad;
+static GstElement *dec;
+static GList *events = NULL;
+
+#define TEST_MSECS_PER_SAMPLE 44100
+
+#define GST_AUDIO_DECODER_TESTER_TYPE gst_audio_decoder_tester_get_type()
+static GType gst_audio_decoder_tester_get_type (void);
+
+typedef struct _GstAudioDecoderTester GstAudioDecoderTester;
+typedef struct _GstAudioDecoderTesterClass GstAudioDecoderTesterClass;
+
+struct _GstAudioDecoderTester
+{
+  GstAudioDecoder parent;
+};
+
+struct _GstAudioDecoderTesterClass
+{
+  GstAudioDecoderClass parent_class;
+};
+
+G_DEFINE_TYPE (GstAudioDecoderTester, gst_audio_decoder_tester,
+    GST_TYPE_AUDIO_DECODER);
+
+static gboolean
+gst_audio_decoder_tester_start (GstAudioDecoder * dec)
+{
+  return TRUE;
+}
+
+static gboolean
+gst_audio_decoder_tester_stop (GstAudioDecoder * dec)
+{
+  return TRUE;
+}
+
+static void
+gst_audio_decoder_tester_flush (GstAudioDecoder * dec, gboolean hard)
+{
+}
+
+static gboolean
+gst_audio_decoder_tester_set_format (GstAudioDecoder * dec, GstCaps * caps)
+{
+  GstAudioInfo info;
+  gst_caps_unref (caps);
+
+  caps = gst_caps_new_simple ("audio/x-raw", "format", G_TYPE_STRING, "S16LE",
+      "channels", G_TYPE_INT, 2, "rate", G_TYPE_INT, 44100,
+      "layout", G_TYPE_STRING, "interleaved", NULL);
+  gst_audio_info_from_caps (&info, caps);
+  gst_caps_unref (caps);
+
+  gst_audio_decoder_set_output_format (dec, &info);
+
+  return TRUE;
+}
+
+static GstFlowReturn
+gst_audio_decoder_tester_handle_frame (GstAudioDecoder * dec,
+    GstBuffer * buffer)
+{
+  guint8 *data;
+  gint size;
+  GstMapInfo map;
+  GstBuffer *output_buffer;
+  guint64 samples;
+
+  if (buffer == NULL)
+    return GST_FLOW_OK;
+
+  gst_buffer_map (buffer, &map, GST_MAP_READ);
+
+  /* the output is SE16LE stereo 44100 Hz */
+  samples =
+      gst_util_uint64_scale_round (44100, GST_BUFFER_DURATION (buffer),
+      GST_SECOND);
+  size = 2 * 2 * samples;
+  data = g_malloc0 (size);
+
+  memcpy (data, map.data, sizeof (guint64));
+
+  output_buffer = gst_buffer_new_wrapped (data, size);
+
+  gst_buffer_unmap (buffer, &map);
+
+  return gst_audio_decoder_finish_frame (dec, output_buffer, 1);
+}
+
+static void
+gst_audio_decoder_tester_class_init (GstAudioDecoderTesterClass * klass)
+{
+  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+  GstAudioDecoderClass *audiosink_class = GST_AUDIO_DECODER_CLASS (klass);
+
+  static GstStaticPadTemplate sink_templ = GST_STATIC_PAD_TEMPLATE ("sink",
+      GST_PAD_SINK, GST_PAD_ALWAYS,
+      GST_STATIC_CAPS ("audio/x-test-custom"));
+
+  static GstStaticPadTemplate src_templ = GST_STATIC_PAD_TEMPLATE ("src",
+      GST_PAD_SRC, GST_PAD_ALWAYS,
+      GST_STATIC_CAPS ("audio/x-raw"));
+
+  gst_element_class_add_pad_template (element_class,
+      gst_static_pad_template_get (&sink_templ));
+  gst_element_class_add_pad_template (element_class,
+      gst_static_pad_template_get (&src_templ));
+
+  gst_element_class_set_metadata (element_class,
+      "AudioDecoderTester", "Decoder/Audio", "yep", "me");
+
+  audiosink_class->start = gst_audio_decoder_tester_start;
+  audiosink_class->stop = gst_audio_decoder_tester_stop;
+  audiosink_class->flush = gst_audio_decoder_tester_flush;
+  audiosink_class->handle_frame = gst_audio_decoder_tester_handle_frame;
+  audiosink_class->set_format = gst_audio_decoder_tester_set_format;
+}
+
+static void
+gst_audio_decoder_tester_init (GstAudioDecoderTester * tester)
+{
+}
+
+static gboolean
+_mysinkpad_event (GstPad * pad, GstObject * parent, GstEvent * event)
+{
+  events = g_list_append (events, event);
+  return TRUE;
+}
+
+static void
+setup_audiodecodertester (void)
+{
+  GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
+      GST_PAD_SINK,
+      GST_PAD_ALWAYS,
+      GST_STATIC_CAPS ("audio/x-raw")
+      );
+  GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+      GST_PAD_SRC,
+      GST_PAD_ALWAYS,
+      GST_STATIC_CAPS ("audio/x-test-custom")
+      );
+
+  dec = g_object_new (GST_AUDIO_DECODER_TESTER_TYPE, NULL);
+  mysrcpad = gst_check_setup_src_pad (dec, &srctemplate);
+  mysinkpad = gst_check_setup_sink_pad (dec, &sinktemplate);
+
+  gst_pad_set_event_function (mysinkpad, _mysinkpad_event);
+}
+
+static void
+cleanup_audiodecodertest (void)
+{
+  gst_pad_set_active (mysrcpad, FALSE);
+  gst_pad_set_active (mysinkpad, FALSE);
+  gst_check_teardown_src_pad (dec);
+  gst_check_teardown_sink_pad (dec);
+  gst_check_teardown_element (dec);
+}
+
+static GstBuffer *
+create_test_buffer (guint64 num)
+{
+  GstBuffer *buffer;
+  guint64 *data = g_malloc (sizeof (guint64));
+
+  *data = num;
+
+  buffer = gst_buffer_new_wrapped (data, sizeof (guint64));
+
+  GST_BUFFER_PTS (buffer) =
+      gst_util_uint64_scale_round (num, GST_SECOND, TEST_MSECS_PER_SAMPLE);
+  GST_BUFFER_DURATION (buffer) =
+      gst_util_uint64_scale_round (1, GST_SECOND, TEST_MSECS_PER_SAMPLE);
+
+  return buffer;
+}
+
+static void
+send_startup_events (void)
+{
+  GstCaps *caps;
+
+  fail_unless (gst_pad_push_event (mysrcpad,
+          gst_event_new_stream_start ("randomvalue")));
+
+  /* push caps */
+  caps =
+      gst_caps_new_simple ("audio/x-test-custom", "channels", G_TYPE_INT, 2,
+      "rate", G_TYPE_INT, 44100, NULL);
+  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_caps (caps)));
+
+}
+
+#define NUM_BUFFERS 1000
+GST_START_TEST (audiodecoder_playback)
+{
+  GstSegment segment;
+  GstBuffer *buffer;
+  guint64 i;
+
+  setup_audiodecodertester ();
+
+  gst_pad_set_active (mysrcpad, TRUE);
+  gst_element_set_state (dec, GST_STATE_PLAYING);
+  gst_pad_set_active (mysinkpad, TRUE);
+
+  send_startup_events ();
+
+  /* push a new segment */
+  gst_segment_init (&segment, GST_FORMAT_TIME);
+  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_segment (&segment)));
+
+  /* push buffers, the data is actually a number so we can track them */
+  for (i = 0; i < NUM_BUFFERS; i++) {
+    GstMapInfo map;
+    guint64 num;
+
+    buffer = create_test_buffer (i);
+
+    fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK);
+
+    /* check that buffer was received by our source pad */
+    buffer = buffers->data;
+
+    gst_buffer_map (buffer, &map, GST_MAP_READ);
+
+    num = *(guint64 *) map.data;
+    fail_unless (i == num);
+    fail_unless (GST_BUFFER_PTS (buffer) == gst_util_uint64_scale_round (i,
+            GST_SECOND, TEST_MSECS_PER_SAMPLE));
+    fail_unless (GST_BUFFER_DURATION (buffer) == gst_util_uint64_scale_round (1,
+            GST_SECOND, TEST_MSECS_PER_SAMPLE));
+
+    gst_buffer_unmap (buffer, &map);
+
+    gst_buffer_unref (buffer);
+    buffers = g_list_delete_link (buffers, buffers);
+  }
+
+  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()));
+
+  fail_unless (buffers == NULL);
+
+  cleanup_audiodecodertest ();
+}
+
+GST_END_TEST;
+
+
+static Suite *
+gst_audiodecoder_suite (void)
+{
+  Suite *s = suite_create ("GstAudioDecoder");
+  TCase *tc = tcase_create ("general");
+
+  suite_add_tcase (s, tc);
+  tcase_add_test (tc, audiodecoder_playback);
+
+  return s;
+}
+
+GST_CHECK_MAIN (gst_audiodecoder);