mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-22 00:06:36 +00:00
Code Issues 1 Projects Releases Wiki Activity

camutils: Fix PMT message construction

Browse source 
The size of the message ended up being bigger than its content.
That cause some CA modules to just hang.
This commit is contained in:
Edward Hervey 2012-05-22 18:53:16 +02:00 committed by Sebastian Dröge
parent 3d588134d8
commit d049eadd50
1 changed files with 14 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
sys/dvb/camutils.c
View file

@ -253,6 +253,7 @@ cam_build_ca_pmt (GstStructure * pmt, guint8 list_management, guint8 cmd_id,
stream = g_value_get_boxed (value);
value = gst_structure_get_value (stream, "descriptors");
len = 0;
if (value != NULL) {
stream_descriptors = g_value_get_boxed (value);
@ -267,16 +268,28 @@ cam_build_ca_pmt (GstStructure * pmt, guint8 list_management, guint8 cmd_id,
}
}
GST_DEBUG ("Body Size %d", body_size);
buffer = g_malloc0 (body_size);
body = buffer;
/* ca_pmt_list_management 8 uimsbf */
*body++ = list_management;
/* program_number 16 uimsbf */
GST_WRITE_UINT16_BE (body, program_number);
body += 2;
/* reserved 2
* version_number 5
* current_next_indicator 1
*/
*body++ = (version_number << 1) | 0x01;
/* Reserved 4
* program_info_length 12
*/
len = GPOINTER_TO_INT (lengths->data);
lengths = g_list_delete_link (lengths, lengths);
GST_WRITE_UINT16_BE (body, len);
@ -298,7 +311,6 @@ cam_build_ca_pmt (GstStructure * pmt, guint8 list_management, guint8 cmd_id,
gst_structure_get_uint (stream, "stream-type", &stream_type);
gst_structure_get_uint (stream, "pid", &stream_pid);
value = gst_structure_get_value (stream, "descriptors");
stream_descriptors = g_value_get_boxed (value);
*body++ = stream_type;
GST_WRITE_UINT16_BE (body, stream_pid);
@ -310,6 +322,7 @@ cam_build_ca_pmt (GstStructure * pmt, guint8 list_management, guint8 cmd_id,
if (len != 0) {
*body++ = cmd_id;
stream_descriptors = g_value_get_boxed (value);
body = write_ca_descriptors (body, stream_descriptors);
}
}