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tests: add AC-3, E-AC-3 typefind tests

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This commit is contained in:
René Stadler 2010-12-07 20:28:37 +02:00
parent 1e75501c10
commit c05f45f05b
1 changed files with 137 additions and 0 deletions
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137
tests/check/gst/typefindfunctions.c
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@ -174,6 +174,141 @@ GST_START_TEST (test_mpegts)
GST_END_TEST;
struct ac3_frmsize
{
unsigned frmsizecod;
unsigned frmsize;
};
static void
make_ac3_packet (guint8 * data, guint bytesize, guint bsid)
{
/* Actually not a fully valid packet; if the typefinder starts to
* check e.g. the CRCs, this test needs to be improved as well. */
const guint8 ac3_header[] = {
0x0b, 0x77, /* syncword */
0x00, 0x00, /* crc1 */
0x00, /* fscod 0xc0, frmsizecod 0x3f */
0x00 /* bsid 0xf8, bsmod 0x07 */
};
const struct ac3_frmsize frmsize[] = {
{17, 256}, {26, 640} /* small subset of supported sizes */
};
guint wordsize = bytesize >> 1, frmsizecod = 0;
int i;
fail_unless ((bytesize & 0x01) == 0);
fail_unless (bytesize >= sizeof (ac3_header));
for (i = 0; i < G_N_ELEMENTS (frmsize); i++) {
if (frmsize[i].frmsize == wordsize) {
frmsizecod = frmsize[i].frmsizecod;
break;
}
}
fail_unless (frmsizecod);
memcpy (data, ac3_header, sizeof (ac3_header));
data[4] = (data[4] & ~0x3f) | (frmsizecod & 0x3f);
data[5] = (bsid & 0x1f) << 3;
memset (data + 6, 0, bytesize - 6);
}
GST_START_TEST (test_ac3)
{
GstTypeFindProbability prob;
const gchar *type;
GstBuffer *buf;
GstCaps *caps = NULL;
guint bsid;
for (bsid = 0; bsid < 32; bsid++) {
buf = gst_buffer_new_and_alloc ((256 + 640) * 2);
make_ac3_packet (GST_BUFFER_DATA (buf), 256 * 2, bsid);
make_ac3_packet (GST_BUFFER_DATA (buf) + 256 * 2, 640 * 2, bsid);
caps = gst_type_find_helper_for_buffer (NULL, buf, &prob);
if (bsid <= 8) {
fail_unless (caps != NULL);
GST_LOG ("Found type for BSID %u: %" GST_PTR_FORMAT, bsid, caps);
type = gst_structure_get_name (gst_caps_get_structure (caps, 0));
fail_unless_equals_string (type, "audio/x-ac3");
fail_unless (prob > GST_TYPE_FIND_MINIMUM
&& prob <= GST_TYPE_FIND_MAXIMUM);
gst_caps_unref (caps);
} else {
fail_unless (caps == NULL);
}
gst_buffer_unref (buf);
}
}
GST_END_TEST;
static void
make_eac3_packet (guint8 * data, guint bytesize, guint bsid)
{
/* Actually not a fully valid packet; if the typefinder starts to
* check e.g. the CRCs, this test needs to be improved as well. */
const guint8 eac3_header[] = {
0x0b, 0x77, /* syncword */
0x00, /* strmtyp 0xc0, substreamid 0x38,
* frmsize 0x07 (3 high bits) */
0x00, /* frmsize (low bits -> 11 total) */
0x00, /* fscod 0xc0, fscod2/numblocks 0x30,
* acmod 0x0e, lfeon 0x01 */
0x00 /* bsid 0xf8, dialnorm 0x07 (3 high bits) */
};
guint wordsize = bytesize >> 1;
fail_unless ((bytesize & 0x01) == 0);
fail_unless (bytesize >= sizeof (eac3_header));
memcpy (data, eac3_header, sizeof (eac3_header));
data[2] = (data[2] & ~0x07) | ((((wordsize - 1) & 0x700) >> 8) & 0xff);
data[3] = (wordsize - 1) & 0xff;
data[5] = (bsid & 0x1f) << 3;
memset (data + 6, 0, bytesize - 6);
}
GST_START_TEST (test_eac3)
{
GstTypeFindProbability prob;
const gchar *type;
GstBuffer *buf;
GstCaps *caps = NULL;
guint bsid;
for (bsid = 0; bsid <= 32; bsid++) {
buf = gst_buffer_new_and_alloc (558 + 384);
make_eac3_packet (GST_BUFFER_DATA (buf), 558, bsid);
make_eac3_packet (GST_BUFFER_DATA (buf) + 558, 384, bsid);
caps = gst_type_find_helper_for_buffer (NULL, buf, &prob);
if (bsid > 10 && bsid <= 16) {
/* Only BSIs 11..16 are valid for Annex E */
fail_unless (caps != NULL);
GST_LOG ("Found type for BSID %u: %" GST_PTR_FORMAT, bsid, caps);
type = gst_structure_get_name (gst_caps_get_structure (caps, 0));
fail_unless_equals_string (type, "audio/x-eac3");
fail_unless (prob > GST_TYPE_FIND_MINIMUM
&& prob <= GST_TYPE_FIND_MAXIMUM);
gst_caps_unref (caps);
} else {
/* Invalid E-AC-3 BSID, must not be detected as anything: */
fail_unless (caps == NULL);
}
gst_buffer_unref (buf);
}
}
GST_END_TEST;
#define TEST_RANDOM_DATA_SIZE (4*1024)
/* typefind random data, to make sure all typefinders are called */
@ -231,6 +366,8 @@ typefindfunctions_suite (void)
tcase_add_test (tc_chain, test_broken_flac_in_ogg);
tcase_add_test (tc_chain, test_jpeg_not_ac3);
tcase_add_test (tc_chain, test_mpegts);
tcase_add_test (tc_chain, test_ac3);
tcase_add_test (tc_chain, test_eac3);
tcase_add_test (tc_chain, test_random_data);
return s;