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typefinding: add depth and endianness to DTS caps

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https://bugzilla.gnome.org/show_bug.cgi?id=644208
This commit is contained in:
Tim-Philipp Müller 2011-03-14 18:35:27 +00:00
parent 9ac74c59db
commit a558af4bbf
1 changed files with 13 additions and 4 deletions
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17
gst/typefind/gsttypefindfunctions.c
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@ -1333,7 +1333,7 @@ static GstStaticCaps dts_caps = GST_STATIC_CAPS ("audio/x-dts");
static gboolean
dts_parse_frame_header (DataScanCtx * c, guint * frame_size,
guint * sample_rate, guint * channels)
guint * sample_rate, guint * channels, guint * depth, guint * endianness)
{
static const int sample_rates[16] = { 0, 8000, 16000, 32000, 0, 0, 11025,
22050, 44100, 0, 0, 12000, 24000, 48000, 96000, 192000
@ -1349,11 +1349,13 @@ dts_parse_frame_header (DataScanCtx * c, guint * frame_size,
/* raw big endian or 14-bit big endian */
if (marker == 0x7FFE8001 || marker == 0x1FFFE800) {
*endianness = G_BIG_ENDIAN;
for (i = 0; i < G_N_ELEMENTS (hdr); ++i)
hdr[i] = GST_READ_UINT16_BE (c->data + (i * sizeof (guint16)));
} else
/* raw little endian or 14-bit little endian */
if (marker == 0xFE7F0180 || marker == 0xFF1F00E8) {
*endianness = G_LITTLE_ENDIAN;
for (i = 0; i < G_N_ELEMENTS (hdr); ++i)
hdr[i] = GST_READ_UINT16_LE (c->data + (i * sizeof (guint16)));
} else {
@ -1376,6 +1378,9 @@ dts_parse_frame_header (DataScanCtx * c, guint * frame_size,
hdr[5] = (hdr[5] << 12) | ((hdr[6] >> 2) & 0x0FFF);
hdr[6] = (hdr[6] << 14) | ((hdr[7] >> 0) & 0x3FFF);
g_assert (hdr[0] == 0x7FFE && hdr[1] == 0x8001);
*depth = 14;
} else {
*depth = 16;
}
GST_LOG ("frame header: %04x%04x%04x%04x", hdr[2], hdr[3], hdr[4], hdr[5]);
@ -1409,12 +1414,13 @@ dts_type_find (GstTypeFind * tf, gpointer unused)
* a lower probability if not found right at the start. Check that the
* frame is followed by a second frame at the expected offset. */
while (c.offset <= DTS_MAX_FRAMESIZE) {
guint frame_size = 0, rate = 0, chans = 0;
guint frame_size = 0, rate = 0, chans = 0, depth = 0, endianness = 0;
if (G_UNLIKELY (!data_scan_ctx_ensure_data (tf, &c, DTS_MIN_FRAMESIZE)))
return;
if (G_UNLIKELY (dts_parse_frame_header (&c, &frame_size, &rate, &chans))) {
if (G_UNLIKELY (dts_parse_frame_header (&c, &frame_size, &rate, &chans,
&depth, &endianness))) {
GstTypeFindProbability prob;
DataScanCtx next_c;
@ -1433,10 +1439,13 @@ dts_type_find (GstTypeFind * tf, gpointer unused)
if (chans > 0) {
gst_type_find_suggest_simple (tf, prob, "audio/x-dts",
"rate", G_TYPE_INT, rate, "channels", G_TYPE_INT, chans,
"depth", G_TYPE_INT, depth, "endianness", G_TYPE_INT, endianness,
"framed", G_TYPE_BOOLEAN, FALSE, NULL);
} else {
gst_type_find_suggest_simple (tf, prob, "audio/x-dts",
"rate", G_TYPE_INT, rate, "framed", G_TYPE_BOOLEAN, FALSE, NULL);
"rate", G_TYPE_INT, rate, "depth", G_TYPE_INT, depth,
"endianness", G_TYPE_INT, endianness,
"framed", G_TYPE_BOOLEAN, FALSE, NULL);
}
return;