gstreamer/tests/check/elements/aacparse.c

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/*
* GStreamer
*
* unit test for aacparse
*
* Copyright (C) 2008 Nokia Corporation. All rights reserved.
*
* Contact: Stefan Kost <stefan.kost@nokia.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <gst/check/gstcheck.h>
#include "aacparse_data.h"
#define SRC_CAPS_CDATA "audio/mpeg, framed=(boolean)false, codec_data=(buffer)1190"
#define SRC_CAPS_TMPL "audio/mpeg, framed=(boolean)false, mpegversion=(int){2,4}"
#define SINK_CAPS \
"audio/mpeg, framed=(boolean)true"
#define SINK_CAPS_MPEG2 \
"audio/mpeg, framed=(boolean)true, mpegversion=2, rate=48000, channels=2"
#define SINK_CAPS_MPEG4 \
"audio/mpeg, framed=(boolean)true, mpegversion=4, rate=96000, channels=2"
#define SINK_CAPS_TMPL "audio/mpeg, framed=(boolean)true, mpegversion=(int){2,4}"
GList *buffers;
GList *current_buf = NULL;
GstPad *srcpad, *sinkpad;
guint dataoffset = 0;
GstClockTime ts_counter = 0;
gint64 offset_counter = 0;
guint buffer_counter = 0;
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (SINK_CAPS_TMPL)
);
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (SRC_CAPS_TMPL)
);
typedef struct
{
guint buffers_before_offset_skip;
guint offset_skip_amount;
const unsigned char *data_to_verify;
GstCaps *caps;
} buffer_verify_data_s;
/* takes a copy of the passed buffer data */
GstBuffer *
buffer_new (const unsigned char *buffer_data, guint size)
{
GstBuffer *buffer;
buffer = gst_buffer_new_and_alloc (size);
if (buffer_data) {
memcpy (GST_BUFFER_DATA (buffer), buffer_data, size);
} else {
guint i;
/* Create a recognizable pattern (loop 0x00 -> 0xff) in the data block */
for (i = 0; i < size; i++) {
GST_BUFFER_DATA (buffer)[i] = i % 0x100;
}
}
gst_buffer_set_caps (buffer, GST_PAD_CAPS (srcpad));
GST_BUFFER_OFFSET (buffer) = dataoffset;
dataoffset += size;
return buffer;
}
/*
* Count buffer sizes together.
*/
static void
buffer_count_size (void *buffer, void *user_data)
{
guint *sum = (guint *) user_data;
*sum += GST_BUFFER_SIZE (buffer);
}
/*
* Verify that given buffer contains predefined ADTS frame.
*/
static void
buffer_verify_adts (void *buffer, void *user_data)
{
buffer_verify_data_s *vdata;
if (!user_data) {
return;
}
vdata = (buffer_verify_data_s *) user_data;
fail_unless (memcmp (GST_BUFFER_DATA (buffer), vdata->data_to_verify,
ADTS_FRAME_LEN) == 0);
fail_unless (GST_BUFFER_TIMESTAMP (buffer) == ts_counter);
fail_unless (GST_BUFFER_DURATION (buffer) != 0);
if (vdata->buffers_before_offset_skip) {
/* This is for skipping the garbage in some test cases */
if (buffer_counter == vdata->buffers_before_offset_skip) {
offset_counter += vdata->offset_skip_amount;
}
}
fail_unless (GST_BUFFER_OFFSET (buffer) == offset_counter);
if (vdata->caps) {
gchar *bcaps = gst_caps_to_string (GST_BUFFER_CAPS (buffer));
g_free (bcaps);
GST_LOG ("%" GST_PTR_FORMAT " = %" GST_PTR_FORMAT " ?",
GST_BUFFER_CAPS (buffer), vdata->caps);
fail_unless (gst_caps_is_equal (GST_BUFFER_CAPS (buffer), vdata->caps));
}
ts_counter += GST_BUFFER_DURATION (buffer);
offset_counter += ADTS_FRAME_LEN;
buffer_counter++;
}
GstElement *
setup_aacparse (const gchar * src_caps_str)
{
GstElement *aacparse;
GstCaps *srccaps = NULL;
GstBus *bus;
if (src_caps_str) {
srccaps = gst_caps_from_string (src_caps_str);
fail_unless (srccaps != NULL);
}
aacparse = gst_check_setup_element ("aacparse");
srcpad = gst_check_setup_src_pad (aacparse, &srctemplate, srccaps);
sinkpad = gst_check_setup_sink_pad (aacparse, &sinktemplate, NULL);
gst_pad_set_active (srcpad, TRUE);
gst_pad_set_active (sinkpad, TRUE);
bus = gst_bus_new ();
gst_element_set_bus (aacparse, bus);
fail_unless (gst_element_set_state (aacparse,
GST_STATE_PLAYING) != GST_STATE_CHANGE_FAILURE,
"could not set to playing");
if (srccaps) {
gst_caps_unref (srccaps);
}
ts_counter = offset_counter = buffer_counter = 0;
buffers = NULL;
return aacparse;
}
static void
cleanup_aacparse (GstElement * aacparse)
{
GstBus *bus;
/* Free parsed buffers */
gst_check_drop_buffers ();
bus = GST_ELEMENT_BUS (aacparse);
gst_bus_set_flushing (bus, TRUE);
gst_object_unref (bus);
gst_pad_set_active (srcpad, FALSE);
gst_pad_set_active (sinkpad, FALSE);
gst_check_teardown_src_pad (aacparse);
gst_check_teardown_sink_pad (aacparse);
gst_check_teardown_element (aacparse);
}
/*
* Test if the parser pushes data with ADIF header properly and detects the
* stream to MPEG4 properly.
*/
GST_START_TEST (test_parse_adif_normal)
{
GstElement *aacparse;
GstBuffer *buffer;
GstCaps *scaps, *sinkcaps;
guint datasum = 0;
guint i;
aacparse = setup_aacparse (NULL);
buffer = buffer_new (adif_header, ADIF_HEADER_LEN);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
for (i = 0; i < 3; i++) {
buffer = buffer_new (NULL, 100);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
}
gst_pad_push_event (srcpad, gst_event_new_eos ());
/* Calculate the outputted buffer sizes */
g_list_foreach (buffers, buffer_count_size, &datasum);
/* ADIF is not a framed format, and therefore we cannot expect the
same amount of output buffers as we pushed. However, all data should
still come through, including the header bytes */
fail_unless_equals_int (datasum, 3 * 100 + ADIF_HEADER_LEN);
/* Check that the negotiated caps are as expected */
/* For ADIF parser assumes that data is always version 4 */
scaps = gst_caps_from_string (SINK_CAPS_MPEG4);
sinkcaps = gst_pad_get_negotiated_caps (sinkpad);
GST_LOG ("%" GST_PTR_FORMAT " = %" GST_PTR_FORMAT " ?", sinkcaps, scaps);
fail_unless (gst_caps_is_equal (sinkcaps, scaps));
gst_caps_unref (sinkcaps);
gst_caps_unref (scaps);
cleanup_aacparse (aacparse);
}
GST_END_TEST;
/*
* Test if the parser pushes data with ADTS frames properly.
*/
GST_START_TEST (test_parse_adts_normal)
{
buffer_verify_data_s vdata = { 0, 0, adts_frame_mpeg4, NULL };
GstElement *aacparse;
GstBuffer *buffer;
guint i;
aacparse = setup_aacparse (NULL);
for (i = 0; i < 10; i++) {
buffer = buffer_new (adts_frame_mpeg4, ADTS_FRAME_LEN);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
}
gst_pad_push_event (srcpad, gst_event_new_eos ());
fail_unless_equals_int (g_list_length (buffers), 10);
g_list_foreach (buffers, buffer_verify_adts, &vdata);
cleanup_aacparse (aacparse);
}
GST_END_TEST;
/*
* Test if ADTS parser drains its buffers properly. Even one single frame
* should be drained and pushed forward when EOS occurs. This single frame
* case is special, since normally the parser needs more data to be sure
* about stream format. But it should still push the frame forward in EOS.
*/
GST_START_TEST (test_parse_adts_drain_single)
{
buffer_verify_data_s vdata = { 0, 0, adts_frame_mpeg4, NULL };
GstElement *aacparse;
GstBuffer *buffer;
aacparse = setup_aacparse (NULL);
buffer = buffer_new (adts_frame_mpeg4, ADTS_FRAME_LEN);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
gst_pad_push_event (srcpad, gst_event_new_eos ());
fail_unless_equals_int (g_list_length (buffers), 1);
g_list_foreach (buffers, buffer_verify_adts, &vdata);
cleanup_aacparse (aacparse);
}
GST_END_TEST;
/*
* Make sure that parser does not drain garbage when EOS occurs.
*/
GST_START_TEST (test_parse_adts_drain_garbage)
{
buffer_verify_data_s vdata = { 0, 0, adts_frame_mpeg4, NULL };
GstElement *aacparse;
GstBuffer *buffer;
guint i;
aacparse = setup_aacparse (NULL);
for (i = 0; i < 10; i++) {
buffer = buffer_new (adts_frame_mpeg4, ADTS_FRAME_LEN);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
}
/* Push one garbage frame and then EOS */
buffer = buffer_new (garbage_frame, GARBAGE_FRAME_LEN);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
gst_pad_push_event (srcpad, gst_event_new_eos ());
fail_unless_equals_int (g_list_length (buffers), 10);
g_list_foreach (buffers, buffer_verify_adts, &vdata);
cleanup_aacparse (aacparse);
}
GST_END_TEST;
/*
* Test if ADTS parser splits a buffer that contains two frames into two
* separate buffers properly.
*/
GST_START_TEST (test_parse_adts_split)
{
buffer_verify_data_s vdata = { 0, 0, adts_frame_mpeg4, NULL };
GstElement *aacparse;
GstBuffer *buffer;
guint i;
aacparse = setup_aacparse (NULL);
for (i = 0; i < 5; i++) {
buffer = buffer_new (adts_frame_mpeg4, ADTS_FRAME_LEN * 2);
memcpy (GST_BUFFER_DATA (buffer) + ADTS_FRAME_LEN,
adts_frame_mpeg4, ADTS_FRAME_LEN);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
}
gst_pad_push_event (srcpad, gst_event_new_eos ());
fail_unless_equals_int (g_list_length (buffers), 10);
g_list_foreach (buffers, buffer_verify_adts, &vdata);
cleanup_aacparse (aacparse);
}
GST_END_TEST;
/*
* Test if the ADTS parser skips garbage between frames properly.
*/
GST_START_TEST (test_parse_adts_skip_garbage)
{
buffer_verify_data_s vdata =
{ 10, GARBAGE_FRAME_LEN, adts_frame_mpeg4, NULL };
GstElement *aacparse;
GstBuffer *buffer;
guint i;
aacparse = setup_aacparse (NULL);
for (i = 0; i < 10; i++) {
buffer = buffer_new (adts_frame_mpeg4, ADTS_FRAME_LEN);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
}
/* push garbage */
buffer = buffer_new (garbage_frame, GARBAGE_FRAME_LEN);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
for (i = 0; i < 10; i++) {
buffer = buffer_new (adts_frame_mpeg4, ADTS_FRAME_LEN);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
}
gst_pad_push_event (srcpad, gst_event_new_eos ());
fail_unless_equals_int (g_list_length (buffers), 20);
g_list_foreach (buffers, buffer_verify_adts, &vdata);
cleanup_aacparse (aacparse);
}
GST_END_TEST;
/*
* Test if the src caps are set according to stream format (MPEG version).
*/
GST_START_TEST (test_parse_adts_detect_mpeg_version)
{
buffer_verify_data_s vdata = { 0, 0, adts_frame_mpeg2, NULL };
GstElement *aacparse;
GstBuffer *buffer;
GstCaps *sinkcaps;
guint i;
aacparse = setup_aacparse (NULL);
/* buffer_verify_adts will check if the caps are equal */
vdata.caps = gst_caps_from_string (SINK_CAPS_MPEG2);
for (i = 0; i < 10; i++) {
/* Push MPEG version 2 frames. */
buffer = buffer_new (adts_frame_mpeg2, ADTS_FRAME_LEN);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
}
gst_pad_push_event (srcpad, gst_event_new_eos ());
/* Check that the negotiated caps are as expected */
sinkcaps = gst_pad_get_negotiated_caps (sinkpad);
GST_LOG ("%" GST_PTR_FORMAT " = %" GST_PTR_FORMAT "?", sinkcaps, vdata.caps);
fail_unless (gst_caps_is_equal (sinkcaps, vdata.caps));
gst_caps_unref (sinkcaps);
fail_unless_equals_int (g_list_length (buffers), 10);
g_list_foreach (buffers, buffer_verify_adts, &vdata);
gst_caps_unref (vdata.caps);
cleanup_aacparse (aacparse);
}
GST_END_TEST;
#define structure_get_int(s,f) \
(g_value_get_int(gst_structure_get_value(s,f)))
#define fail_unless_structure_field_int_equals(s,field,num) \
fail_unless_equals_int (structure_get_int(s,field), num)
/*
* Test if the parser handles raw stream and codec_data info properly.
*/
GST_START_TEST (test_parse_handle_codec_data)
{
GstElement *aacparse;
GstBuffer *buffer;
GstCaps *sinkcaps;
GstStructure *s;
guint datasum = 0;
guint i;
aacparse = setup_aacparse (SRC_CAPS_CDATA);
for (i = 0; i < 10; i++) {
/* Push random data. It should get through since the parser should be
initialized because it got codec_data in the caps */
buffer = buffer_new (NULL, 100);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
}
gst_pad_push_event (srcpad, gst_event_new_eos ());
/* Check that the negotiated caps are as expected */
/* When codec_data is present, parser assumes that data is version 4 */
sinkcaps = gst_pad_get_negotiated_caps (sinkpad);
GST_LOG ("aac output caps: %" GST_PTR_FORMAT, sinkcaps);
s = gst_caps_get_structure (sinkcaps, 0);
fail_unless (gst_structure_has_name (s, "audio/mpeg"));
fail_unless_structure_field_int_equals (s, "mpegversion", 4);
fail_unless_structure_field_int_equals (s, "channels", 2);
fail_unless_structure_field_int_equals (s, "rate", 48000);
fail_unless (gst_structure_has_field (s, "codec_data"));
gst_caps_unref (sinkcaps);
g_list_foreach (buffers, buffer_count_size, &datasum);
fail_unless_equals_int (datasum, 10 * 100);
cleanup_aacparse (aacparse);
}
GST_END_TEST;
static Suite *
aacparse_suite ()
{
Suite *s = suite_create ("aacparse");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
/* ADIF tests */
tcase_add_test (tc_chain, test_parse_adif_normal);
/* ADTS tests */
tcase_add_test (tc_chain, test_parse_adts_normal);
tcase_add_test (tc_chain, test_parse_adts_drain_single);
tcase_add_test (tc_chain, test_parse_adts_drain_garbage);
tcase_add_test (tc_chain, test_parse_adts_split);
tcase_add_test (tc_chain, test_parse_adts_skip_garbage);
tcase_add_test (tc_chain, test_parse_adts_detect_mpeg_version);
/* Other tests */
tcase_add_test (tc_chain, test_parse_handle_codec_data);
return s;
}
/*
* TODO:
* - Both push- and pull-modes need to be tested
* * Pull-mode & EOS
*/
GST_CHECK_MAIN (aacparse);