gstreamer/tests/check/elements/parser.c

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/*
* GStreamer
*
* unit test for (audio) parser
*
* 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>
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#include "elements/parser.h"
/* context state variables */
const gchar *ctx_factory;
GstStaticPadTemplate *ctx_sink_template;
GstStaticPadTemplate *ctx_src_template;
GstCaps *ctx_input_caps;
GstCaps *ctx_output_caps;
guint ctx_discard = 0;
datablob ctx_headers[MAX_HEADERS] = { {NULL, 0}, };
gboolean ctx_no_metadata = FALSE;
/* helper variables */
GList *current_buf = NULL;
GstPad *srcpad, *sinkpad;
guint dataoffset = 0;
GstClockTime ts_counter = 0;
gint64 offset_counter = 0;
guint buffer_counter = 0;
typedef struct
{
guint discard;
guint buffers_before_offset_skip;
guint offset_skip_amount;
const guint8 *data_to_verify;
guint data_to_verify_size;
GstCaps *caps;
gboolean no_metadata;
} buffer_verify_data_s;
/* takes a copy of the passed buffer data */
static GstBuffer *
buffer_new (const unsigned char *buffer_data, guint size)
{
GstBuffer *buffer;
buffer = gst_buffer_new_and_alloc (size);
if (buffer_data) {
gst_buffer_fill (buffer, 0, buffer_data, size);
} else {
guint i;
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GstMapInfo map;
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gst_buffer_map (buffer, &map, GST_MAP_WRITE);
/* Create a recognizable pattern (loop 0x00 -> 0xff) in the data block */
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for (i = 0; i < map.size; i++) {
map.data[i] = i % 0x100;
}
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gst_buffer_unmap (buffer, &map);
}
/* gst_buffer_set_caps (buffer, GST_PAD_CAPS (srcpad)); */
GST_BUFFER_OFFSET (buffer) = dataoffset;
dataoffset += size;
return buffer;
}
/*
* Adds buffer sizes together.
*/
static void
buffer_count_size (void *buffer, void *user_data)
{
guint *sum = (guint *) user_data;
*sum += gst_buffer_get_size (buffer);
}
/*
* Verify that given buffer contains predefined ADTS frame.
*/
static void
buffer_verify_data (void *buffer, void *user_data)
{
buffer_verify_data_s *vdata;
if (!user_data) {
return;
}
vdata = (buffer_verify_data_s *) user_data;
GST_DEBUG ("discard: %d", vdata->discard);
if (vdata->discard) {
buffer_counter++;
if (buffer_counter == vdata->discard) {
buffer_counter = 0;
vdata->discard = 0;
}
return;
}
fail_unless (gst_buffer_get_size (buffer) == vdata->data_to_verify_size);
fail_unless (gst_buffer_memcmp (buffer, 0, vdata->data_to_verify,
vdata->data_to_verify_size) == 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;
}
}
if (!vdata->no_metadata) {
fail_unless (GST_BUFFER_TIMESTAMP (buffer) == ts_counter);
fail_unless (GST_BUFFER_DURATION (buffer) != 0);
fail_unless (GST_BUFFER_OFFSET (buffer) == offset_counter);
}
ts_counter += GST_BUFFER_DURATION (buffer);
offset_counter += gst_buffer_get_size (buffer);
buffer_counter++;
}
static GstElement *
setup_element (const gchar * factory, GstStaticPadTemplate * sink_template,
GstCaps * sink_caps, GstStaticPadTemplate * src_template,
GstCaps * src_caps)
{
GstElement *element;
GstBus *bus;
element = gst_check_setup_element (factory);
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srcpad = gst_check_setup_src_pad (element, src_template);
sinkpad = gst_check_setup_sink_pad (element, sink_template);
gst_pad_set_active (srcpad, TRUE);
gst_pad_set_active (sinkpad, TRUE);
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if (src_caps)
fail_unless (gst_pad_set_caps (srcpad, src_caps));
if (sink_caps)
fail_unless (gst_pad_set_caps (sinkpad, sink_caps));
bus = gst_bus_new ();
gst_element_set_bus (element, bus);
fail_unless (gst_element_set_state (element,
GST_STATE_PLAYING) != GST_STATE_CHANGE_FAILURE,
"could not set to playing");
ts_counter = offset_counter = buffer_counter = 0;
buffers = NULL;
return element;
}
static void
cleanup_element (GstElement * element)
{
GstBus *bus;
/* Free parsed buffers */
gst_check_drop_buffers ();
bus = GST_ELEMENT_BUS (element);
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 (element);
gst_check_teardown_sink_pad (element);
gst_check_teardown_element (element);
}
/* inits a standard test */
void
gst_parser_test_init (GstParserTest * ptest, guint8 * data, guint size,
guint num)
{
/* need these */
fail_unless (ctx_factory != NULL);
fail_unless (ctx_src_template != NULL);
fail_unless (ctx_sink_template != NULL);
/* basics */
memset (ptest, 0, sizeof (*ptest));
ptest->factory = ctx_factory;
ptest->sink_template = ctx_sink_template;
ptest->src_template = ctx_src_template;
ptest->framed = TRUE;
/* could be NULL if not relevant/needed */
ptest->src_caps = ctx_input_caps;
ptest->sink_caps = ctx_output_caps;
memcpy (ptest->headers, ctx_headers, sizeof (ptest->headers));
ptest->discard = ctx_discard;
/* some data that pleases caller */
ptest->series[0].data = data;
ptest->series[0].size = size;
ptest->series[0].num = num;
ptest->series[0].fpb = 1;
ptest->series[1].fpb = 1;
ptest->series[2].fpb = 1;
ptest->no_metadata = ctx_no_metadata;
}
/*
* Test if the parser pushes clean data properly.
*/
void
gst_parser_test_run (GstParserTest * test, GstCaps ** out_caps)
{
buffer_verify_data_s vdata = { 0, 0, 0, NULL, 0, NULL, FALSE };
GstElement *element;
GstBuffer *buffer = NULL;
GstCaps *src_caps;
guint i, j, k;
guint frames = 0, size = 0;
element = setup_element (test->factory, test->sink_template, NULL,
test->src_template, test->src_caps);
/* push some setup headers */
for (j = 0; j < G_N_ELEMENTS (test->headers) && test->headers[j].data; j++) {
buffer = buffer_new (test->headers[j].data, test->headers[j].size);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
}
for (j = 0; j < 3; j++) {
for (i = 0; i < test->series[j].num; i++) {
/* sanity enforcing */
for (k = 0; k < MAX (1, test->series[j].fpb); k++) {
if (!k)
buffer = buffer_new (test->series[j].data, test->series[j].size);
else {
buffer = gst_buffer_join (buffer,
buffer_new (test->series[j].data, test->series[j].size));
}
}
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
if (j == 0)
vdata.buffers_before_offset_skip++;
else if (j == 1)
vdata.offset_skip_amount += test->series[j].size * test->series[j].fpb;
if (j != 1) {
frames += test->series[j].fpb;
size += test->series[j].size * test->series[j].fpb;
}
}
}
gst_pad_push_event (srcpad, gst_event_new_eos ());
if (G_LIKELY (test->framed))
fail_unless_equals_int (g_list_length (buffers) - test->discard, frames);
/* if all frames are identical, do extended test,
* otherwise only verify total data size */
if (test->series[0].data && (!test->series[2].size ||
(test->series[0].size == test->series[2].size && test->series[2].data
&& !memcmp (test->series[0].data, test->series[2].data,
test->series[0].size)))) {
vdata.data_to_verify = test->series[0].data;
vdata.data_to_verify_size = test->series[0].size;
vdata.caps = test->sink_caps;
vdata.discard = test->discard;
vdata.no_metadata = test->no_metadata;
g_list_foreach (buffers, buffer_verify_data, &vdata);
} else {
guint datasum = 0;
g_list_foreach (buffers, buffer_count_size, &datasum);
size -= test->dropped;
fail_unless_equals_int (datasum, size);
}
src_caps = gst_pad_get_current_caps (sinkpad);
GST_LOG ("output caps: %" GST_PTR_FORMAT, src_caps);
if (test->sink_caps) {
GST_LOG ("%" GST_PTR_FORMAT " = %" GST_PTR_FORMAT " ?", src_caps,
test->sink_caps);
fail_unless (gst_caps_is_equal (src_caps, test->sink_caps));
}
if (out_caps)
*out_caps = src_caps;
else
gst_caps_unref (src_caps);
cleanup_element (element);
}
/*
* Test if the parser pushes clean data properly.
*/
void
gst_parser_test_normal (guint8 * data, guint size)
{
GstParserTest ptest;
gst_parser_test_init (&ptest, data, size, 10);
gst_parser_test_run (&ptest, NULL);
}
/*
* Test if 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.
*/
void
gst_parser_test_drain_single (guint8 * data, guint size)
{
GstParserTest ptest;
gst_parser_test_init (&ptest, data, size, 1);
gst_parser_test_run (&ptest, NULL);
}
/*
* Make sure that parser does not drain garbage when EOS occurs.
*/
void
gst_parser_test_drain_garbage (guint8 * data, guint size, guint8 * garbage,
guint gsize)
{
GstParserTest ptest;
/* provide enough initial frames since it may take some parsers some
* time to be convinced of proper sync */
gst_parser_test_init (&ptest, data, size, 10);
ptest.series[1].data = garbage;
ptest.series[1].size = gsize;
ptest.series[1].num = 1;
gst_parser_test_run (&ptest, NULL);
}
/*
* Test if parser splits a buffer that contains two frames into two
* separate buffers properly.
*/
void
gst_parser_test_split (guint8 * data, guint size)
{
GstParserTest ptest;
gst_parser_test_init (&ptest, data, size, 10);
ptest.series[0].fpb = 2;
gst_parser_test_run (&ptest, NULL);
}
/*
* Test if the parser skips garbage between frames properly.
*/
void
gst_parser_test_skip_garbage (guint8 * data, guint size, guint8 * garbage,
guint gsize)
{
GstParserTest ptest;
gst_parser_test_init (&ptest, data, size, 10);
ptest.series[1].data = garbage;
ptest.series[1].size = gsize;
ptest.series[1].num = 1;
ptest.series[2].data = data;
ptest.series[2].size = size;
ptest.series[2].num = 10;
gst_parser_test_run (&ptest, NULL);
}
/*
* Test if the src caps are set according to stream format.
*/
void
gst_parser_test_output_caps (guint8 * data, guint size,
const gchar * input_caps, const gchar * output_caps)
{
GstParserTest ptest;
gst_parser_test_init (&ptest, data, size, 10);
if (input_caps) {
ptest.src_caps = gst_caps_from_string (input_caps);
fail_unless (ptest.src_caps != NULL);
}
if (output_caps) {
ptest.sink_caps = gst_caps_from_string (output_caps);
fail_unless (ptest.sink_caps != NULL);
}
gst_parser_test_run (&ptest, NULL);
if (ptest.sink_caps)
gst_caps_unref (ptest.sink_caps);
if (ptest.src_caps)
gst_caps_unref (ptest.src_caps);
}
/*
* Test if the src caps are set according to stream format.
*/
GstCaps *
gst_parser_test_get_output_caps (guint8 * data, guint size,
const gchar * input_caps)
{
GstParserTest ptest;
GstCaps *out_caps;
gst_parser_test_init (&ptest, data, size, 10);
if (input_caps) {
ptest.src_caps = gst_caps_from_string (input_caps);
fail_unless (ptest.src_caps != NULL);
}
gst_parser_test_run (&ptest, &out_caps);
if (ptest.src_caps)
gst_caps_unref (ptest.src_caps);
return out_caps;
}