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authorDavid Härdeman <david@hardeman.nu>2008-10-27 08:57:27 +0000
committerSebastian Dröge <slomo@circular-chaos.org>2008-10-27 08:57:27 +0000
commit77de3318151adba45080513f00b5b2e6d5eede00 (patch)
tree3f7525c2d201b3c6ff291204833eb72e210e05f3 /gst
parent71043cd0f9cb7a57a820b450846a643b3d978727 (diff)
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gst/mpegdemux/mpegtspacketizer.c: Add support for the frequency list descriptor, which provides additional frequencie...
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.
Diffstat (limited to 'gst')
-rw-r--r--gst/mpegdemux/mpegtspacketizer.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/gst/mpegdemux/mpegtspacketizer.c b/gst/mpegdemux/mpegtspacketizer.c
index a89236b5..7997c843 100644
--- a/gst/mpegdemux/mpegtspacketizer.c
+++ b/gst/mpegdemux/mpegtspacketizer.c
@@ -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);