DTV: work-in-progress Linux DVBv5 input

This is incomplete and hence not automatically compiled. Conditional
Access, DVB-S and scanning are missing. DVB-T and ATSC are not tested.
DVB-C works.

It is not clear to me what the problem is, but it seems VLC does not
like the Linux DVB kernel demux. Only budget mode seems to work
correctly at the moment.

modules/access/Modules.am

@@ -116,6 +116,15 @@ if HAVE_XCB
 libvlc_LTLIBRARIES += libxcb_screen_plugin.la
 endif
 
+libdtv_plugin_la_SOURCES = \
+	dtv/dtv.h \
+	dtv/linux.c \
+	dtv/access.c
+libdtv_plugin_la_CFLAGS = $(AM_CFLAGS)
+libdtv_plugin_la_LIBADD = $(AM_LIBADD)
+libdtv_plugin_la_DEPENDENCIES =
+
 EXTRA_LTLIBRARIES += \
 	libaccess_rtmp_plugin.la \
+	libdtv_plugin.la \
 	libaccess_shm_plugin.la

modules/access/dtv/dtv.h

+/**
+ * @file dtv.h
+ * @brief Digital TV module common header
+ */
+/*****************************************************************************
+ * Copyright © 2011 Rémi Denis-Courmont
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ ****************************************************************************/
+
+typedef struct delsys delsys_t;
+
+extern const delsys_t dvbc, dvbs, dvbs2, dvbt, atsc;
+
+typedef struct dvb_device dvb_device_t;
+
+dvb_device_t *dvb_open (vlc_object_t *obj, bool tune);
+void dvb_close (dvb_device_t *);
+ssize_t dvb_read (dvb_device_t *, void *, size_t);
+
+int dvb_add_pid (dvb_device_t *, uint16_t);
+void dvb_remove_pid (dvb_device_t *, uint16_t);
+
+const delsys_t *dvb_guess_system (dvb_device_t *);
+float dvb_get_signal_strength (dvb_device_t *);
+float dvb_get_snr (dvb_device_t *);
+
+int dvb_set_inversion (dvb_device_t *, int);
+int dvb_tune (dvb_device_t *);
+
+/* DVB-C */
+int dvb_set_dvbc (dvb_device_t *, uint32_t freq, const char *mod,
+                  uint32_t srate, const char *fec);
+
+/* DVB-S */
+int dvb_set_dvbs (dvb_device_t *, uint64_t freq, uint32_t srate,
+                  const char *fec);
+int dvb_set_dvbs2 (dvb_device_t *, uint64_t freq, const char *mod,
+                   uint32_t srate, const char *fec, int pilot, int rolloff);
+int dvb_set_sec (dvb_device_t *, bool tone, int voltage, bool high_voltage);
+/* XXX^^ */
+
+/* DVB-T */
+int dvb_set_dvbt (dvb_device_t *, uint32_t freq, const char *mod,
+                  const char *fec_hp, const char *fec_lp, uint32_t bandwidth,
+                  int transmission, const char *guard, int hierarchy);
+
+/* ATSC */
+int dvb_set_atsc (dvb_device_t *, uint32_t freq, const char *mod);
+
+/* ISDB-T */
+typedef struct isdbt_layer
+{
+    const char *modulation;
+    const char *code_rate;
+    uint8_t segment_count;
+    uint8_t time_interleaving;
+} isdbt_layer_t;
+
+typedef struct isdbt_sound
+{
+    uint8_t subchannel_id;
+    uint8_t segment_index;    uint8_t segment_cound;
+} isdbt_sound_t;
+
+int dvb_set_isdbt (dvb_device_t *, uint32_t freq, const isdbt_layer_t *a,
+                   const isdbt_layer_t *b, const isdbt_layer_t *c,
+                   const isdbt_sound_t *sb);