[dvblast-devel] dvb-s2 multistream

Georgi Chorbadzhiyski gf at unixsol.org
Fri Nov 11 20:59:39 CET 2011


On 11/11/11 7:58 PM, Вячеслав Адаманов wrote:
> Are there any plans support multistream transponders?!

Well aren't you a very impatient guy :) The patch for mis support
is only two weeks old and have not found it's way into Linux yet
(I'm looking at 3.2-rc1-git from today). I'm talking about the
patch(es) at: http://www.tbsdtv.com/forum/viewtopic.php?f=26&t=1874

Any way, attached is a test patch for dvblast that implements
multisteam support. It is only compile tested.

-- 
Georgi Chorbadzhiyski
http://georgi.unixsol.org/
-------------- next part --------------
From 39d2a66a9cc800d843e91c04aba8fb7e19b9d5d4 Mon Sep 17 00:00:00 2001
From: Georgi Chorbadzhiyski <gf at unixsol.org>
Date: Fri, 11 Nov 2011 21:55:40 +0200
Subject: [PATCH] Add test support for DVB-S2 multistream.

---
 dvb.c     |   12 ++++++++++--
 dvblast.c |   13 ++++++++++---
 dvblast.h |   11 +++++++++++
 3 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/dvb.c b/dvb.c
index 557b7d3..f603030 100644
--- a/dvb.c
+++ b/dvb.c
@@ -781,6 +781,9 @@ static struct dtv_property dvbs2_cmdargs[] = {
     { .cmd = DTV_DELIVERY_SYSTEM, .u.data = SYS_DVBS2 },
     { .cmd = DTV_PILOT,           .u.data = PILOT_AUTO },
     { .cmd = DTV_ROLLOFF,         .u.data = ROLLOFF_AUTO },
+#if DVBS2_MIS_IS_SUPPORTED
+    { .cmd = DTV_DVBS2_MIS_ID,    .u.data = 0 },
+#endif
     { .cmd = DTV_TUNE },
 };
 static struct dtv_properties dvbs2_cmdseq = {
@@ -842,6 +845,7 @@ static struct dtv_properties atsc_cmdseq = {
 #define PILOT 6
 #define TRANSMISSION 7
 #define ROLLOFF 7
+#define MIS 8
 #define HIERARCHY 8
 
 struct dtv_property pclear[] = {
@@ -916,6 +920,9 @@ static void FrontendSet( bool b_init )
             p->props[MODULATION].u.data = GetModulation();
             p->props[PILOT].u.data = GetPilot();
             p->props[ROLLOFF].u.data = GetRollOff();
+#if DVBS2_MIS_IS_SUPPORTED
+            p->props[MIS].u.data = i_mis;
+#endif
         }
         else
             p = &dvbs_cmdseq;
@@ -925,9 +932,10 @@ static void FrontendSet( bool b_init )
         p->props[FEC_INNER].u.data = GetFECInner(info.caps);
         p->props[FREQUENCY].u.data = FrontendDoDiseqc();
 
-        msg_Dbg( NULL, "tuning QPSK frontend to f=%d srate=%d inversion=%d fec=%d rolloff=%d modulation=%s pilot=%d",
+        msg_Dbg( NULL, "tuning QPSK frontend to f=%d srate=%d inversion=%d fec=%d rolloff=%d modulation=%s pilot=%d mis=%d",
                  i_frequency, i_srate, i_inversion, i_fec, i_rolloff,
-                 psz_modulation == NULL ? "legacy" : psz_modulation, i_pilot );
+                 psz_modulation == NULL ? "legacy" : psz_modulation, i_pilot,
+                 i_mis );
         break;
 
     case FE_ATSC:
diff --git a/dvblast.c b/dvblast.c
index 93a2dea..2e38135 100644
--- a/dvblast.c
+++ b/dvblast.c
@@ -73,6 +73,7 @@ int b_tone = 0;
 int i_bandwidth = 8;
 char *psz_modulation = NULL;
 int i_pilot = -1;
+int i_mis = 0;
 int i_fec_lp = 999;
 int i_guard = -1;
 int i_transmission = -1;
@@ -452,7 +453,7 @@ void usage()
         "[-i <RT priority>] [-a <adapter>] [-n <frontend number>] [-S <diseqc>] "
         "[-f <frequency>|-D [<src host>[:<src port>]@]<src mcast>[:<port>][/<opts>]*|-A <ASI adapter>] "
         "[-s <symbol rate>] [-v <0|13|18>] [-p] [-b <bandwidth>] [-I <inversion>] "
-        "[-F <fec inner>] [-m <modulation] [-R <rolloff>] [-P <pilot>] [-K <fec lp>] "
+        "[-F <fec inner>] [-m <modulation] [-R <rolloff>] [-P <pilot>] [-K <fec lp>] [-k <dvbs2_mutistream_id>] "
         "[-G <guard interval>] [-H <hierarchy>] [-X <transmission>] [-O <lock timeout>] "
         "[-u] [-w] [-U] [-L <latency>] [-E <retention>] [-d <dest IP>[<:port>][/<opts>]*] "
         "[-z] [-C [-e] [-M <network name] [-N <network ID>]] [-T] [-j <system charset>] "
@@ -477,6 +478,7 @@ void usage()
     msg_Raw( NULL, "  -P --pilot            DVB-S2 Pilot (-1 auto, 0 off, 1 on)" );
     msg_Raw( NULL, "  -R --rolloff          DVB-S2 Rolloff value" );
     msg_Raw( NULL, "    DVB-S2 35=0.35|25=0.25|20=0.20|0=AUTO (default: 35)" );
+    msg_Raw( NULL, "  -k --multistream-id   DVB-S2 multistream id (0-255, default: 0) /Only with DVB API >= 5.5?/" );
     msg_Raw( NULL, "  -K --fec-lp           DVB-T low priority FEC (default auto)" );
     msg_Raw( NULL, "  -G --guard            DVB-T guard interval" );
     msg_Raw( NULL, "    DVB-T  32 (1/32)|16 (1/16)|8 (1/8)|4 (1/4)|-1 (auto, default)" );
@@ -542,7 +544,7 @@ int main( int i_argc, char **pp_argv )
         usage();
 
     /*
-     * The only short options left are: ky0123456789
+     * The only short options left are: y0123456789
      * Use them wisely.
      */
     static const struct option long_options[] =
@@ -565,6 +567,7 @@ int main( int i_argc, char **pp_argv )
         { "inversion",       required_argument, NULL, 'I' },
         { "modulation",      required_argument, NULL, 'm' },
         { "pilot",           required_argument, NULL, 'P' },
+        { "mutistream-id",   required_argument, NULL, 'k' },
         { "fec-lp",          required_argument, NULL, 'K' },
         { "guard",           required_argument, NULL, 'G' },
         { "hierarchy",       required_argument, NULL, 'H' },
@@ -600,7 +603,7 @@ int main( int i_argc, char **pp_argv )
         { 0, 0, 0, 0 }
     };
 
-    while ( (c = getopt_long(i_argc, pp_argv, "q::c:r:t:o:i:a:n:f:F:R:s:S:v:pb:I:m:P:K:G:H:X:O:uwUTL:E:d:D:A:lg:zCWYeM:N:j:J:B:x:Q:hVZ:", long_options, NULL)) != -1 )
+    while ( (c = getopt_long(i_argc, pp_argv, "q::c:r:t:o:i:a:n:f:F:R:s:S:v:pb:I:m:P:k:K:G:H:X:O:uwUTL:E:d:D:A:lg:zCWYeM:N:j:J:B:x:Q:hVZ:", long_options, NULL)) != -1 )
     {
         switch ( c )
         {
@@ -711,6 +714,10 @@ int main( int i_argc, char **pp_argv )
             i_pilot = strtol( optarg, NULL, 0 );
             break;
 
+        case 'k':
+            i_mis = strtol( optarg, NULL, 0 );
+            break;
+
         case 'K':
             i_fec_lp = strtol( optarg, NULL, 0 );
             break;
diff --git a/dvblast.h b/dvblast.h
index 40ce4c4..19b64ca 100644
--- a/dvblast.h
+++ b/dvblast.h
@@ -24,6 +24,16 @@
 #include <netdb.h>
 #include <sys/socket.h>
 
+#if DVBAPI_VERSION >= 505
+    #define DVBS2_MIS_IS_SUPPORTED 1
+#endif
+
+/* Debug code to test mutistream with older DVB headers */
+#if 1 && DVBAPI_VERSION < 505
+    #define DVBS2_MIS_IS_SUPPORTED 1
+    #define DTV_DVBS2_MIS_ID 44
+#endif
+
 #define HAVE_CLOCK_NANOSLEEP
 #define HAVE_ICONV
 
@@ -167,6 +177,7 @@ extern int i_bandwidth;
 extern int i_inversion;
 extern char *psz_modulation;
 extern int i_pilot;
+extern int i_mis;
 extern int i_fec_lp;
 extern int i_guard;
 extern int i_transmission;
-- 
1.7.5.1


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