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275 lines
7.5 KiB
C
275 lines
7.5 KiB
C
/* GStreamer ReplayGain limiter
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*
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* Copyright (C) 2007 Rene Stadler <mail@renestadler.de>
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*
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* rglimiter.c: Unit test for the rglimiter element
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#include <gst/check/gstcheck.h>
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#include <gst/audio/audio.h>
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/* For ease of programming we use globals to keep refs for our floating
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* src and sink pads we create; otherwise we always have to do get_pad,
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* get_peer, and then remove references in every test function */
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static GstPad *mysrcpad, *mysinkpad;
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#define RG_LIMITER_CAPS_TEMPLATE_STRING \
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"audio/x-raw, " \
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"format = (string) "GST_AUDIO_NE (F32) ", " \
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"layout = (string) interleaved, " \
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"channels = (int) [ 1, MAX ], " \
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"rate = (int) [ 1, MAX ]"
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static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (RG_LIMITER_CAPS_TEMPLATE_STRING)
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);
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static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (RG_LIMITER_CAPS_TEMPLATE_STRING)
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);
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static GstElement *
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setup_rglimiter (void)
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{
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GstElement *element;
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GST_DEBUG ("setup_rglimiter");
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element = gst_check_setup_element ("rglimiter");
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mysrcpad = gst_check_setup_src_pad (element, &srctemplate);
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mysinkpad = gst_check_setup_sink_pad (element, &sinktemplate);
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gst_pad_set_active (mysrcpad, TRUE);
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gst_pad_set_active (mysinkpad, TRUE);
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return element;
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}
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static void
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cleanup_rglimiter (GstElement * element)
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{
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GST_DEBUG ("cleanup_rglimiter");
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g_list_foreach (buffers, (GFunc) gst_mini_object_unref, NULL);
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g_list_free (buffers);
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buffers = NULL;
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gst_check_teardown_src_pad (element);
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gst_check_teardown_sink_pad (element);
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gst_check_teardown_element (element);
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}
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static void
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set_playing_state (GstElement * element)
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{
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fail_unless (gst_element_set_state (element,
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GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
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"Could not set state to PLAYING");
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}
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static const gfloat test_input[] = {
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-2.0, -1.0, -0.75, -0.5, -0.25, 0.0, 0.25, 0.5, 0.75, 1.0, 2.0
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};
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static const gfloat test_output[] = {
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-0.99752737684336523, /* -2.0 */
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-0.88079707797788243, /* -1.0 */
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-0.7310585786300049, /* -0.75 */
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-0.5, -0.25, 0.0, 0.25, 0.5,
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0.7310585786300049, /* 0.75 */
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0.88079707797788243, /* 1.0 */
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0.99752737684336523, /* 2.0 */
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};
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static void
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setup_events (GstElement * element)
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{
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GstCaps *caps;
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caps = gst_caps_new_simple ("audio/x-raw",
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"rate", G_TYPE_INT, 44100, "channels", G_TYPE_INT, 1,
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"format", G_TYPE_STRING, GST_AUDIO_NE (F32),
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"layout", G_TYPE_STRING, "interleaved", NULL);
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gst_check_setup_events (mysrcpad, element, caps, GST_FORMAT_TIME);
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gst_caps_unref (caps);
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}
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static GstBuffer *
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create_test_buffer (void)
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{
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GstBuffer *buf = gst_buffer_new_and_alloc (sizeof (test_input));
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gst_buffer_fill (buf, 0, test_input, sizeof (test_input));
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ASSERT_BUFFER_REFCOUNT (buf, "buf", 1);
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return buf;
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}
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static void
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verify_test_buffer (GstBuffer * buf)
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{
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GstMapInfo map;
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gfloat *output;
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gint i;
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gst_buffer_map (buf, &map, GST_MAP_READ);
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output = (gfloat *) map.data;
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fail_unless (map.size == sizeof (test_output));
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for (i = 0; i < G_N_ELEMENTS (test_input); i++)
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fail_unless (ABS (output[i] - test_output[i]) < 1.e-6,
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"Incorrect output value %.6f for input %.2f, expected %.6f",
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output[i], test_input[i], test_output[i]);
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gst_buffer_unmap (buf, &map);
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}
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/* Start of tests. */
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GST_START_TEST (test_no_buffer)
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{
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GstElement *element = setup_rglimiter ();
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set_playing_state (element);
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cleanup_rglimiter (element);
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}
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GST_END_TEST;
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GST_START_TEST (test_disabled)
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{
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GstElement *element = setup_rglimiter ();
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GstBuffer *buf, *out_buf;
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g_object_set (element, "enabled", FALSE, NULL);
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set_playing_state (element);
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setup_events (element);
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buf = create_test_buffer ();
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fail_unless (gst_pad_push (mysrcpad, buf) == GST_FLOW_OK);
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fail_unless (g_list_length (buffers) == 1);
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out_buf = buffers->data;
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fail_if (out_buf == NULL);
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buffers = g_list_remove (buffers, out_buf);
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ASSERT_BUFFER_REFCOUNT (out_buf, "out_buf", 1);
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fail_unless (buf == out_buf);
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gst_buffer_unref (out_buf);
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cleanup_rglimiter (element);
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}
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GST_END_TEST;
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GST_START_TEST (test_limiting)
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{
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GstElement *element = setup_rglimiter ();
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GstBuffer *buf, *out_buf;
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set_playing_state (element);
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setup_events (element);
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/* Mutable variant. */
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buf = create_test_buffer ();
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GST_DEBUG ("push mutable buffer");
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fail_unless (gst_pad_push (mysrcpad, buf) == GST_FLOW_OK);
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fail_unless (g_list_length (buffers) == 1);
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out_buf = buffers->data;
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fail_if (out_buf == NULL);
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ASSERT_BUFFER_REFCOUNT (out_buf, "out_buf", 1);
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verify_test_buffer (out_buf);
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/* Immutable variant. */
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buf = create_test_buffer ();
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/* Extra ref: */
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gst_buffer_ref (buf);
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ASSERT_BUFFER_REFCOUNT (buf, "buf", 2);
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GST_DEBUG ("push immutable buffer");
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fail_unless (gst_pad_push (mysrcpad, buf) == GST_FLOW_OK);
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ASSERT_BUFFER_REFCOUNT (buf, "buf", 1);
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fail_unless (g_list_length (buffers) == 2);
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out_buf = g_list_last (buffers)->data;
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fail_if (out_buf == NULL);
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ASSERT_BUFFER_REFCOUNT (out_buf, "out_buf", 1);
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fail_unless (buf != out_buf);
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/* Drop our extra ref: */
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gst_buffer_unref (buf);
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verify_test_buffer (out_buf);
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cleanup_rglimiter (element);
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}
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GST_END_TEST;
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GST_START_TEST (test_gap)
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{
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GstElement *element = setup_rglimiter ();
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GstBuffer *buf, *out_buf;
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GstMapInfo m1, m2;
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set_playing_state (element);
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setup_events (element);
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buf = create_test_buffer ();
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GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_GAP);
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fail_unless (gst_pad_push (mysrcpad, buf) == GST_FLOW_OK);
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fail_unless (g_list_length (buffers) == 1);
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out_buf = buffers->data;
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fail_if (out_buf == NULL);
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ASSERT_BUFFER_REFCOUNT (out_buf, "out_buf", 1);
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/* Verify that the baseclass does not lift the GAP flag: */
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fail_unless (GST_BUFFER_FLAG_IS_SET (out_buf, GST_BUFFER_FLAG_GAP));
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gst_buffer_map (out_buf, &m1, GST_MAP_READ);
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gst_buffer_map (buf, &m2, GST_MAP_READ);
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g_assert (m1.size == m2.size);
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/* We cheated by passing an input buffer with non-silence that has the GAP
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* flag set. The element cannot know that however and must have skipped
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* adjusting the buffer because of the flag, which we can easily verify: */
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fail_if (memcmp (m1.data, m2.data, m1.size) != 0);
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gst_buffer_unmap (out_buf, &m1);
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gst_buffer_unmap (buf, &m2);
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cleanup_rglimiter (element);
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}
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GST_END_TEST;
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static Suite *
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rglimiter_suite (void)
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{
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Suite *s = suite_create ("rglimiter");
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TCase *tc_chain = tcase_create ("general");
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suite_add_tcase (s, tc_chain);
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tcase_add_test (tc_chain, test_no_buffer);
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tcase_add_test (tc_chain, test_disabled);
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tcase_add_test (tc_chain, test_limiting);
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tcase_add_test (tc_chain, test_gap);
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return s;
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}
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GST_CHECK_MAIN (rglimiter);
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