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gst/mpegdemux/mpegtspacketizer.c: Add support for the frequency list descriptor, which provides additional frequencie...

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Original commit message from CVS:
Patch by: David Härdeman <david at hardeman dot nu>
* gst/mpegdemux/mpegtspacketizer.c: (mpegts_packetizer_parse_nit):
Add support for the frequency list descriptor, which provides
additional frequencies that should be scanned by a DVB application.
Fixes bug #557814.
This commit is contained in:
David Härdeman 2008-10-27 08:57:27 +00:00 committed by Sebastian Dröge
parent 71043cd0f9
commit 77de331815
2 changed files with 81 additions and 0 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2008-10-27 Sebastian Dröge <sebastian.droege@collabora.co.uk>
Patch by: David Härdeman <david at hardeman dot nu>
* gst/mpegdemux/mpegtspacketizer.c: (mpegts_packetizer_parse_nit):
Add support for the frequency list descriptor, which provides
additional frequencies that should be scanned by a DVB application.
Fixes bug #557814.
2008-10-27 Sebastian Dröge <sebastian.droege@collabora.co.uk>
Patch by: vanista <vanista at gmail dot com>

72
gst/mpegdemux/mpegtspacketizer.c
View file

@ -1046,6 +1046,78 @@ mpegts_packetizer_parse_nit (MpegTSPacketizer * packetizer,
gst_structure_set_value (transport, "channels", &channel_numbers);
g_value_unset (&channel_numbers);
}
if ((delivery =
gst_mpeg_descriptor_find (mpegdescriptor,
DESC_DVB_FREQUENCY_LIST))) {
guint8 *current_pos = delivery + 2;
GValue frequencies = { 0 };
guint8 type;
g_value_init (&frequencies, GST_TYPE_LIST);
type = *current_pos & 0x03;
current_pos++;
if (type) {
const gchar *fieldname = NULL;
while (current_pos < delivery + DESC_LENGTH (delivery) - 3) {
guint32 freq = 0;
guint8 *frequency_bcd = current_pos;
GValue frequency = { 0 };
switch (type) {
case 0x01:
/* satellite */
freq =
10 * ((frequency_bcd[3] & 0x0F) +
10 * ((frequency_bcd[3] & 0xF0) >> 4) +
100 * (frequency_bcd[2] & 0x0F) +
1000 * ((frequency_bcd[2] & 0xF0) >> 4) +
10000 * (frequency_bcd[1] & 0x0F) +
100000 * ((frequency_bcd[1] & 0xF0) >> 4) +
1000000 * (frequency_bcd[0] & 0x0F) +
10000000 * ((frequency_bcd[0] & 0xF0) >> 4));
break;
case 0x02:
/* cable */
freq = 100 *
((frequency_bcd[3] & 0x0F) +
10 * ((frequency_bcd[3] & 0xF0) >> 4) +
100 * (frequency_bcd[2] & 0x0F) +
1000 * ((frequency_bcd[2] & 0xF0) >> 4) +
10000 * (frequency_bcd[1] & 0x0F) +
100000 * ((frequency_bcd[1] & 0xF0) >> 4) +
1000000 * (frequency_bcd[0] & 0x0F) +
10000000 * ((frequency_bcd[0] & 0xF0) >> 4));
break;
case 0x03:
/* terrestrial */
freq = GST_READ_UINT32_BE (current_pos) * 10;
break;
}
g_value_init (&frequency, G_TYPE_UINT);
g_value_set_uint (&frequency, freq);
gst_value_list_append_value (&frequencies, &frequency);
g_value_unset (&frequency);
current_pos += 4;
}
switch (type) {
case 0x01:
fieldname = "frequency-list-satellite";
break;
case 0x02:
fieldname = "frequency-list-cable";
break;
case 0x03:
fieldname = "frequency-list-terrestrial";
break;
}
gst_structure_set_value (transport, fieldname, &frequencies);
g_value_unset (&frequencies);
}
}
gst_mpeg_descriptor_free (mpegdescriptor);
descriptors = g_value_array_new (0);