voaacenc: Add new plugin for audio AAC encoder based on vo-aacenc lib

Add plugin and unit test.

Fixes bug #647748.

1 files changed, 287 insertions, 0 deletions

diff --git a/tests/check/elements/voaacenc.c b/tests/check/elements/voaacenc.c
new file mode 100644
index 000000000..22b42fbb3
--- /dev/null
+++ b/tests/check/elements/voaacenc.c
@@ -0,0 +1,287 @@
+/* GStreamer
+ *
+ * unit test for voaacenc
+ *
+ * Copyright (C) <2009> Mark Nauwelaerts <mnauw@users.sf.net>
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <unistd.h>
+
+#include <gst/check/gstcheck.h>
+#include <gst/audio/multichannel.h>
+
+/* For ease of programming we use globals to keep refs for our floating
+ * src and sink pads we create; otherwise we always have to do get_pad,
+ * get_peer, and then remove references in every test function */
+static GstPad *mysrcpad, *mysinkpad;
+
+#define AUDIO_CAPS_STRING "audio/x-raw-int, " \
+                           "rate = (int) 48000, " \
+                           "channels = (int) 2, " \
+                           "width = (int) 16, " \
+                           "depth = (int) 16, " \
+                           "signed = (boolean) true, " \
+                           "endianness = (int) BYTE_ORDER "
+
+#define AAC_RAW_CAPS_STRING "audio/mpeg, " \
+                          "mpegversion = (int) 4, " \
+                          "rate = (int) 48000, " \
+                          "channels = (int) 2, " \
+													"stream-format = \"raw\""
+
+#define AAC_ADTS_CAPS_STRING "audio/mpeg, " \
+                          "mpegversion = (int) 4, " \
+                          "rate = (int) 48000, " \
+                          "channels = (int) 2, " \
+													"stream-format = \"adts\""
+
+
+static GstStaticPadTemplate sinktemplate_adts = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (AAC_ADTS_CAPS_STRING));
+
+static GstStaticPadTemplate sinktemplate_raw = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (AAC_RAW_CAPS_STRING));
+
+
+static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (AUDIO_CAPS_STRING));
+
+
+static GstElement *
+setup_voaacenc (gboolean adts)
+{
+  GstElement *voaacenc;
+
+  GST_DEBUG ("setup_voaacenc");
+  voaacenc = gst_check_setup_element ("voaacenc");
+  mysrcpad = gst_check_setup_src_pad (voaacenc, &srctemplate, NULL);
+
+  if (adts)
+    mysinkpad = gst_check_setup_sink_pad (voaacenc, &sinktemplate_adts, NULL);
+  else
+    mysinkpad = gst_check_setup_sink_pad (voaacenc, &sinktemplate_raw, NULL);
+
+  gst_pad_set_active (mysrcpad, TRUE);
+  gst_pad_set_active (mysinkpad, TRUE);
+
+  return voaacenc;
+}
+
+static void
+cleanup_voaacenc (GstElement * voaacenc)
+{
+  GST_DEBUG ("cleanup_aacenc");
+  gst_element_set_state (voaacenc, GST_STATE_NULL);
+
+  gst_pad_set_active (mysrcpad, FALSE);
+  gst_pad_set_active (mysinkpad, FALSE);
+  gst_check_teardown_src_pad (voaacenc);
+  gst_check_teardown_sink_pad (voaacenc);
+  gst_check_teardown_element (voaacenc);
+}
+
+static void
+set_channel_positions (GstCaps * caps, int channels,
+    GstAudioChannelPosition * channelpositions)
+{
+  GValue chanpos = { 0 };
+  GValue pos = { 0 };
+  GstStructure *structure = gst_caps_get_structure (caps, 0);
+  int c;
+
+  g_value_init (&chanpos, GST_TYPE_ARRAY);
+  g_value_init (&pos, GST_TYPE_AUDIO_CHANNEL_POSITION);
+
+  for (c = 0; c < channels; c++) {
+    g_value_set_enum (&pos, channelpositions[c]);
+    gst_value_array_append_value (&chanpos, &pos);
+  }
+  g_value_unset (&pos);
+
+  gst_structure_set_value (structure, "channel-positions", &chanpos);
+  g_value_unset (&chanpos);
+}
+
+static void
+do_test (gboolean adts)
+{
+  GstElement *voaacenc;
+  GstBuffer *inbuffer, *outbuffer;
+  GstCaps *caps;
+  gint i, num_buffers;
+  const gint nbuffers = 10;
+  GstAudioChannelPosition channel_position_layout[2] =
+      { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
+    GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT
+  };
+
+  voaacenc = setup_voaacenc (adts);
+  fail_unless (gst_element_set_state (voaacenc,
+          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
+      "could not set to playing");
+
+  /* corresponds to audio buffer mentioned in the caps */
+  inbuffer = gst_buffer_new_and_alloc (1024 * nbuffers * 2 * 2);
+  /* makes valgrind's memcheck happier */
+  memset (GST_BUFFER_DATA (inbuffer), 0, GST_BUFFER_SIZE (inbuffer));
+  caps = gst_caps_from_string (AUDIO_CAPS_STRING);
+
+  set_channel_positions (caps, 2, channel_position_layout);
+
+  gst_buffer_set_caps (inbuffer, caps);
+  gst_caps_unref (caps);
+  GST_BUFFER_TIMESTAMP (inbuffer) = 0;
+  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
+  fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
+
+  /* send eos to have all flushed if needed */
+  fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()) == TRUE);
+
+  num_buffers = g_list_length (buffers);
+  fail_unless_equals_int (num_buffers, nbuffers);
+
+  /* clean up buffers */
+  for (i = 0; i < num_buffers; ++i) {
+    gint size, header = 0, id;
+    guint8 *data;
+
+    outbuffer = GST_BUFFER (buffers->data);
+    fail_if (outbuffer == NULL);
+
+    data = GST_BUFFER_DATA (outbuffer);
+    size = GST_BUFFER_SIZE (outbuffer);
+
+    if (adts) {
+      gboolean protection;
+      gint k;
+
+      fail_if (size < 7);
+      protection = !(data[1] & 0x1);
+      /* expect only 1 raw data block */
+      k = (data[6] & 0x3) + 1;
+      fail_if (k != 1);
+
+      header = 7;
+      if (protection)
+        header += (k - 1) * 2 + 2;
+
+      /* check header */
+      k = GST_READ_UINT16_BE (data) & 0xFFF6;
+      /* sync */
+      fail_unless (k == 0xFFF0);
+      k = data[2];
+      /* profile */
+      fail_unless ((k >> 6) == 0x1);
+      /* rate */
+      fail_unless (((k >> 2) & 0xF) == 0x3);
+      /* channels */
+      fail_unless ((k & 0x1) == 0);
+      k = data[3];
+      fail_unless ((k >> 6) == 0x2);
+
+    } else {
+      GstCaps *caps;
+      GstStructure *s;
+      const GValue *value;
+      GstBuffer *buf;
+      gint k;
+
+      caps = gst_buffer_get_caps (outbuffer);
+      fail_if (caps == NULL);
+      s = gst_caps_get_structure (caps, 0);
+      fail_if (s == NULL);
+      value = gst_structure_get_value (s, "codec_data");
+      fail_if (value == NULL);
+      buf = gst_value_get_buffer (value);
+      fail_if (buf == NULL);
+      data = GST_BUFFER_DATA (buf);
+      size = GST_BUFFER_SIZE (buf);
+      fail_if (size < 2);
+      k = GST_READ_UINT16_BE (data);
+      /* profile, rate, channels */
+      fail_unless ((k & 0xFFF8) == ((0x02 << 11) | (0x3 << 7) | (0x02 << 3)));
+      gst_caps_unref (caps);
+
+    }
+
+    fail_if (size <= header);
+    id = data[header] & (0x7 << 5);
+    /* allow all but ID_END or ID_LFE */
+    fail_if (id == 7 || id == 3);
+
+    buffers = g_list_remove (buffers, outbuffer);
+
+    ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);
+    gst_buffer_unref (outbuffer);
+    outbuffer = NULL;
+  }
+
+  cleanup_voaacenc (voaacenc);
+  g_list_free (buffers);
+  buffers = NULL;
+}
+
+GST_START_TEST (test_adts)
+{
+  do_test (TRUE);
+}
+
+GST_END_TEST;
+
+GST_START_TEST (test_raw)
+{
+  do_test (FALSE);
+}
+
+GST_END_TEST;
+
+static Suite *
+voaacenc_suite (void)
+{
+  Suite *s = suite_create ("voaacenc");
+  TCase *tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+  tcase_add_test (tc_chain, test_adts);
+  tcase_add_test (tc_chain, test_raw);
+
+  return s;
+}
+
+int
+main (int argc, char **argv)
+{
+  int nf;
+
+  Suite *s = voaacenc_suite ();
+  SRunner *sr = srunner_create (s);
+
+  gst_check_init (&argc, &argv);
+
+  srunner_run_all (sr, CK_NORMAL);
+  nf = srunner_ntests_failed (sr);
+  srunner_free (sr);
+
+  return nf;
+}