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gstreamer/sys/dvb/gstdvbsrc.c
Vincent Génieux 5616efb0f8 dvbsrc: Add timeout property and use GstPoll instead of poll 
This allows to use much higher timeout values because GstPoll
is interruptible and keeps the number of wakeups during signal
loss lower.

Fixes bug #608171.
2011-05-23 16:49:55 +02:00

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/* GStreamer DVB source
* Copyright (C) 2006 Zaheer Abbas Merali <zaheerabbas at merali
* dot org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:element-dvbsrc
*
* dvbsrc can be used to capture video from DVB cards, DVB-T, DVB-S or DVB-T.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch dvbsrc modulation="QAM 64" trans-mode=8k bandwidth=8 frequency=514000000 code-rate-lp=AUTO code-rate-hp=2/3 guard=4 hierarchy=0 ! mpegtsdemux name=demux ! queue max-size-buffers=0 max-size-time=0 ! mpeg2dec ! xvimagesink demux. ! queue max-size-buffers=0 max-size-time=0 ! mad ! alsasink
* ]| Captures a full transport stream from dvb card 0 that is a DVB-T card at tuned frequency 514000000 with other parameters as seen in the pipeline and renders the first tv program on the transport stream.
* |[
* gst-launch dvbsrc modulation="QAM 64" trans-mode=8k bandwidth=8 frequency=514000000 code-rate-lp=AUTO code-rate-hp=2/3 guard=4 hierarchy=0 pids=100:256:257 ! mpegtsdemux name=demux ! queue max-size-buffers=0 max-size-time=0 ! mpeg2dec ! xvimagesink demux. ! queue max-size-buffers=0 max-size-time=0 ! mad ! alsasink
* ]| Captures and renders a transport stream from dvb card 0 that is a DVB-T card for a program at tuned frequency 514000000 with PMT pid 100 and elementary stream pids of 256, 257 with other parameters as seen in the pipeline.
* |[
* gst-launch dvbsrc polarity="h" frequency=11302000 symbol-rate=27500 diseqc-src=0 pids=50:102:103 ! mpegtsdemux name=demux ! queue max-size-buffers=0 max-size-time=0 ! mpeg2dec ! xvimagesink demux. ! queue max-size-buffers=0 max-size-time=0 ! mad ! alsasink
* ]| Captures and renders a transport stream from dvb card 0 that is a DVB-S card for a program at tuned frequency 11302000 Hz, symbol rate of 27500 kHz with PMT pid of 50 and elementary stream pids of 102 and 103.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstdvbsrc.h"
#include <gst/gst.h>
#include <sys/ioctl.h>
#include <sys/poll.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "_stdint.h"
#define _XOPEN_SOURCE 500
#include <unistd.h>
#include <linux/dvb/version.h>
#include <linux/dvb/frontend.h>
#include <linux/dvb/dmx.h>
#include <gst/gst-i18n-plugin.h>
GST_DEBUG_CATEGORY_STATIC (gstdvbsrc_debug);
#define GST_CAT_DEFAULT (gstdvbsrc_debug)
#define SLOF (11700*1000UL)
#define LOF1 (9750*1000UL)
#define LOF2 (10600*1000UL)
/* Arguments */
enum
{
ARG_0,
ARG_DVBSRC_ADAPTER,
ARG_DVBSRC_FRONTEND,
ARG_DVBSRC_DISEQC_SRC,
ARG_DVBSRC_FREQUENCY,
ARG_DVBSRC_POLARITY,
ARG_DVBSRC_PIDS,
ARG_DVBSRC_SYM_RATE,
ARG_DVBSRC_BANDWIDTH,
ARG_DVBSRC_CODE_RATE_HP,
ARG_DVBSRC_CODE_RATE_LP,
ARG_DVBSRC_GUARD,
ARG_DVBSRC_MODULATION,
ARG_DVBSRC_TRANSMISSION_MODE,
ARG_DVBSRC_HIERARCHY_INF,
ARG_DVBSRC_TUNE,
ARG_DVBSRC_INVERSION,
ARG_DVBSRC_STATS_REPORTING_INTERVAL,
ARG_DVBSRC_TIMEOUT,
};
#define DEFAULT_ADAPTER 0
#define DEFAULT_FRONTEND 0
#define DEFAULT_DISEQC_SRC -1 /* disabled */
#define DEFAULT_FREQUENCY 0
#define DEFAULT_POLARITY "H"
#define DEFAULT_PIDS "8192"
#define DEFAULT_SYMBOL_RATE 0
#define DEFAULT_BANDWIDTH BANDWIDTH_7_MHZ
#define DEFAULT_CODE_RATE_HP FEC_AUTO
#define DEFAULT_CODE_RATE_LP FEC_1_2
#define DEFAULT_GUARD GUARD_INTERVAL_1_16
#define DEFAULT_MODULATION QAM_16
#define DEFAULT_TRANSMISSION_MODE TRANSMISSION_MODE_8K
#define DEFAULT_HIERARCHY HIERARCHY_1
#define DEFAULT_INVERSION INVERSION_ON
#define DEFAULT_STATS_REPORTING_INTERVAL 100
#define DEFAULT_TIMEOUT 1000000 /* 1 second */
#define DEFAULT_BUFFER_SIZE 8192 /* not a property */
static void gst_dvbsrc_output_frontend_stats (GstDvbSrc * src);
#define GST_TYPE_DVBSRC_CODE_RATE (gst_dvbsrc_code_rate_get_type ())
static GType
gst_dvbsrc_code_rate_get_type (void)
{
static GType dvbsrc_code_rate_type = 0;
static GEnumValue code_rate_types[] = {
{FEC_NONE, "NONE", "none"},
{FEC_1_2, "1/2", "1/2"},
{FEC_2_3, "2/3", "2/3"},
{FEC_3_4, "3/4", "3/4"},
{FEC_4_5, "4/5", "4/5"},
{FEC_5_6, "5/6", "5/6"},
{FEC_6_7, "6/7", "6/7"},
{FEC_7_8, "7/8", "7/8"},
{FEC_8_9, "8/9", "8/9"},
{FEC_AUTO, "AUTO", "auto"},
{0, NULL, NULL},
};
if (!dvbsrc_code_rate_type) {
dvbsrc_code_rate_type =
g_enum_register_static ("GstDvbSrcCode_Rate", code_rate_types);
}
return dvbsrc_code_rate_type;
}
#define GST_TYPE_DVBSRC_MODULATION (gst_dvbsrc_modulation_get_type ())
static GType
gst_dvbsrc_modulation_get_type (void)
{
static GType dvbsrc_modulation_type = 0;
static GEnumValue modulation_types[] = {
{QPSK, "QPSK", "qpsk"},
{QAM_16, "QAM 16", "qam-16"},
{QAM_32, "QAM 32", "qam-32"},
{QAM_64, "QAM 64", "qam-64"},
{QAM_128, "QAM 128", "qam-128"},
{QAM_256, "QAM 256", "qam-256"},
{QAM_AUTO, "AUTO", "auto"},
{VSB_8, "8VSB", "8vsb"},
{VSB_16, "16VSB", "16vsb"},
{0, NULL, NULL},
};
if (!dvbsrc_modulation_type) {
dvbsrc_modulation_type =
g_enum_register_static ("GstDvbSrcModulation", modulation_types);
}
return dvbsrc_modulation_type;
}
#define GST_TYPE_DVBSRC_TRANSMISSION_MODE (gst_dvbsrc_transmission_mode_get_type ())
static GType
gst_dvbsrc_transmission_mode_get_type (void)
{
static GType dvbsrc_transmission_mode_type = 0;
static GEnumValue transmission_mode_types[] = {
{TRANSMISSION_MODE_2K, "2K", "2k"},
{TRANSMISSION_MODE_8K, "8K", "8k"},
{TRANSMISSION_MODE_AUTO, "AUTO", "auto"},
{0, NULL, NULL},
};
if (!dvbsrc_transmission_mode_type) {
dvbsrc_transmission_mode_type =
g_enum_register_static ("GstDvbSrcTransmission_Mode",
transmission_mode_types);
}
return dvbsrc_transmission_mode_type;
}
#define GST_TYPE_DVBSRC_BANDWIDTH (gst_dvbsrc_bandwidth_get_type ())
static GType
gst_dvbsrc_bandwidth_get_type (void)
{
static GType dvbsrc_bandwidth_type = 0;
static GEnumValue bandwidth_types[] = {
{BANDWIDTH_8_MHZ, "8", "8"},
{BANDWIDTH_7_MHZ, "7", "7"},
{BANDWIDTH_6_MHZ, "6", "6"},
{BANDWIDTH_AUTO, "AUTO", "AUTO"},
{0, NULL, NULL},
};
if (!dvbsrc_bandwidth_type) {
dvbsrc_bandwidth_type =
g_enum_register_static ("GstDvbSrcBandwidth", bandwidth_types);
}
return dvbsrc_bandwidth_type;
}
#define GST_TYPE_DVBSRC_GUARD (gst_dvbsrc_guard_get_type ())
static GType
gst_dvbsrc_guard_get_type (void)
{
static GType dvbsrc_guard_type = 0;
static GEnumValue guard_types[] = {
{GUARD_INTERVAL_1_32, "32", "32"},
{GUARD_INTERVAL_1_16, "16", "16"},
{GUARD_INTERVAL_1_8, "8", "8"},
{GUARD_INTERVAL_1_4, "4", "4"},
{GUARD_INTERVAL_AUTO, "AUTO", "auto"},
{0, NULL, NULL},
};
if (!dvbsrc_guard_type) {
dvbsrc_guard_type = g_enum_register_static ("GstDvbSrcGuard", guard_types);
}
return dvbsrc_guard_type;
}
#define GST_TYPE_DVBSRC_HIERARCHY (gst_dvbsrc_hierarchy_get_type ())
static GType
gst_dvbsrc_hierarchy_get_type (void)
{
static GType dvbsrc_hierarchy_type = 0;
static GEnumValue hierarchy_types[] = {
{HIERARCHY_NONE, "NONE", "none"},
{HIERARCHY_1, "1", "1"},
{HIERARCHY_2, "2", "2"},
{HIERARCHY_4, "4", "4"},
{HIERARCHY_AUTO, "AUTO", "auto"},
{0, NULL, NULL},
};
if (!dvbsrc_hierarchy_type) {
dvbsrc_hierarchy_type =
g_enum_register_static ("GstDvbSrcHierarchy", hierarchy_types);
}
return dvbsrc_hierarchy_type;
}
#define GST_TYPE_DVBSRC_INVERSION (gst_dvbsrc_inversion_get_type ())
static GType
gst_dvbsrc_inversion_get_type (void)
{
static GType dvbsrc_inversion_type = 0;
static GEnumValue inversion_types[] = {
{INVERSION_OFF, "OFF", "off"},
{INVERSION_ON, "ON", "on"},
{INVERSION_AUTO, "AUTO", "auto"},
{0, NULL, NULL},
};
if (!dvbsrc_inversion_type) {
dvbsrc_inversion_type =
g_enum_register_static ("GstDvbSrcInversion", inversion_types);
}
return dvbsrc_inversion_type;
}
static void gst_dvbsrc_finalize (GObject * object);
static void gst_dvbsrc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_dvbsrc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstFlowReturn gst_dvbsrc_create (GstPushSrc * element,
GstBuffer ** buffer);
static gboolean gst_dvbsrc_start (GstBaseSrc * bsrc);
static gboolean gst_dvbsrc_stop (GstBaseSrc * bsrc);
static GstStateChangeReturn gst_dvbsrc_change_state (GstElement * element,
GstStateChange transition);
static gboolean gst_dvbsrc_unlock (GstBaseSrc * bsrc);
static gboolean gst_dvbsrc_unlock_stop (GstBaseSrc * bsrc);
static gboolean gst_dvbsrc_is_seekable (GstBaseSrc * bsrc);
static gboolean gst_dvbsrc_get_size (GstBaseSrc * src, guint64 * size);
static gboolean gst_dvbsrc_tune (GstDvbSrc * object);
static void gst_dvbsrc_set_pes_filters (GstDvbSrc * object);
static void gst_dvbsrc_unset_pes_filters (GstDvbSrc * object);
static gboolean gst_dvbsrc_frontend_status (GstDvbSrc * object);
static GstStaticPadTemplate ts_src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS
("video/mpegts, "
"mpegversion = (int) 2," "systemstream = (boolean) TRUE"));
/*
******************************
* *
* GObject Related *
* *
* *
******************************
*/
GST_BOILERPLATE (GstDvbSrc, gst_dvbsrc, GstPushSrc, GST_TYPE_PUSH_SRC);
static void
gst_dvbsrc_base_init (gpointer gclass)
{
GstDvbSrcClass *klass = (GstDvbSrcClass *) gclass;
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&ts_src_factory));
gst_element_class_set_details_simple (element_class, "DVB Source",
"Source/Video",
"Digital Video Broadcast Source",
"P2P-VCR, C-Lab, University of Paderborn,"
"Zaheer Abbas Merali <zaheerabbas at merali dot org>");
}
/* initialize the plugin's class */
static void
gst_dvbsrc_class_init (GstDvbSrcClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSrcClass *gstbasesrc_class;
GstPushSrcClass *gstpushsrc_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstbasesrc_class = (GstBaseSrcClass *) klass;
gstpushsrc_class = (GstPushSrcClass *) klass;
gobject_class->set_property = gst_dvbsrc_set_property;
gobject_class->get_property = gst_dvbsrc_get_property;
gobject_class->finalize = gst_dvbsrc_finalize;
gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_dvbsrc_change_state);
gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_dvbsrc_start);
gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_dvbsrc_stop);
gstbasesrc_class->unlock = GST_DEBUG_FUNCPTR (gst_dvbsrc_unlock);
gstbasesrc_class->unlock_stop = GST_DEBUG_FUNCPTR (gst_dvbsrc_unlock_stop);
gstbasesrc_class->is_seekable = GST_DEBUG_FUNCPTR (gst_dvbsrc_is_seekable);
gstbasesrc_class->get_size = GST_DEBUG_FUNCPTR (gst_dvbsrc_get_size);
gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_dvbsrc_create);
g_object_class_install_property (gobject_class, ARG_DVBSRC_ADAPTER,
g_param_spec_int ("adapter", "The adapter device number",
"The adapter device number (eg. 0 for adapter0)",
0, 16, DEFAULT_ADAPTER, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_FRONTEND,
g_param_spec_int ("frontend", "The frontend device number",
"The frontend device number (eg. 0 for frontend0)",
0, 16, DEFAULT_FRONTEND, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_FREQUENCY,
g_param_spec_uint ("frequency", "frequency", "Frequency",
0, G_MAXUINT, DEFAULT_FREQUENCY, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_POLARITY,
g_param_spec_string ("polarity", "polarity", "Polarity [vhHV] (DVB-S)",
DEFAULT_POLARITY, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
g_object_class_install_property (gobject_class, ARG_DVBSRC_PIDS,
g_param_spec_string ("pids", "pids",
"Colon seperated list of pids (eg. 110:120)",
DEFAULT_PIDS, G_PARAM_WRITABLE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_SYM_RATE,
g_param_spec_uint ("symbol-rate",
"symbol rate",
"Symbol Rate (DVB-S, DVB-C)",
0, G_MAXUINT, DEFAULT_SYMBOL_RATE, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_TUNE,
g_param_spec_pointer ("tune",
"tune", "Atomically tune to channel. (For Apps)", G_PARAM_WRITABLE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_DISEQC_SRC,
g_param_spec_int ("diseqc-source",
"diseqc source",
"DISEqC selected source (-1 disabled) (DVB-S)",
-1, 7, DEFAULT_DISEQC_SRC, G_PARAM_READWRITE));
/* DVB-T, additional properties */
g_object_class_install_property (gobject_class, ARG_DVBSRC_BANDWIDTH,
g_param_spec_enum ("bandwidth",
"bandwidth",
"Bandwidth (DVB-T)", GST_TYPE_DVBSRC_BANDWIDTH, DEFAULT_BANDWIDTH,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_CODE_RATE_HP,
g_param_spec_enum ("code-rate-hp",
"code-rate-hp",
"High Priority Code Rate (DVB-T, DVB-S and DVB-C)",
GST_TYPE_DVBSRC_CODE_RATE, DEFAULT_CODE_RATE_HP, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_CODE_RATE_LP,
g_param_spec_enum ("code-rate-lp",
"code-rate-lp",
"Low Priority Code Rate (DVB-T)",
GST_TYPE_DVBSRC_CODE_RATE, DEFAULT_CODE_RATE_LP, G_PARAM_READWRITE));
/* FIXME: should the property be called 'guard-interval' then? */
g_object_class_install_property (gobject_class, ARG_DVBSRC_GUARD,
g_param_spec_enum ("guard",
"guard",
"Guard Interval (DVB-T)",
GST_TYPE_DVBSRC_GUARD, DEFAULT_GUARD, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_MODULATION,
g_param_spec_enum ("modulation", "modulation",
"Modulation (DVB-T and DVB-C)",
GST_TYPE_DVBSRC_MODULATION, DEFAULT_MODULATION, G_PARAM_READWRITE));
/* FIXME: property should be named 'transmission-mode' */
g_object_class_install_property (gobject_class,
ARG_DVBSRC_TRANSMISSION_MODE,
g_param_spec_enum ("trans-mode", "trans-mode",
"Transmission Mode (DVB-T)", GST_TYPE_DVBSRC_TRANSMISSION_MODE,
DEFAULT_TRANSMISSION_MODE, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_HIERARCHY_INF,
g_param_spec_enum ("hierarchy", "hierarchy",
"Hierarchy Information (DVB-T)",
GST_TYPE_DVBSRC_HIERARCHY, DEFAULT_HIERARCHY, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_INVERSION,
g_param_spec_enum ("inversion", "inversion",
"Inversion Information (DVB-T and DVB-C)",
GST_TYPE_DVBSRC_INVERSION, DEFAULT_INVERSION, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
ARG_DVBSRC_STATS_REPORTING_INTERVAL,
g_param_spec_uint ("stats-reporting-interval",
"stats-reporting-interval",
"The number of reads before reporting frontend stats",
0, G_MAXUINT, DEFAULT_STATS_REPORTING_INTERVAL, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_DVBSRC_TIMEOUT,
g_param_spec_uint64 ("timeout", "Timeout",
"Post a message after timeout microseconds (0 = disabled)", 0,
G_MAXUINT64, DEFAULT_TIMEOUT, G_PARAM_READWRITE));
}
/* initialize the new element
* instantiate pads and add them to element
* set functions
* initialize structure
*/
static void
gst_dvbsrc_init (GstDvbSrc * object, GstDvbSrcClass * klass)
{
int i = 0;
GST_INFO_OBJECT (object, "gst_dvbsrc_init");
/* We are a live source */
gst_base_src_set_live (GST_BASE_SRC (object), TRUE);
object->fd_frontend = -1;
object->fd_dvr = -1;
for (i = 0; i < MAX_FILTERS; i++) {
object->pids[i] = G_MAXUINT16;
object->fd_filters[i] = -1;
}
/* Pid 8192 on DVB gets the whole transport stream */
object->pids[0] = 8192;
object->adapter_number = DEFAULT_ADAPTER;
object->frontend_number = DEFAULT_FRONTEND;
object->diseqc_src = DEFAULT_DISEQC_SRC;
object->send_diseqc = (DEFAULT_DISEQC_SRC != -1);
/* object->pol = DVB_POL_H; *//* set via G_PARAM_CONSTRUCT */
object->sym_rate = DEFAULT_SYMBOL_RATE;
object->bandwidth = DEFAULT_BANDWIDTH;
object->code_rate_hp = DEFAULT_CODE_RATE_HP;
object->code_rate_lp = DEFAULT_CODE_RATE_LP;
object->guard_interval = DEFAULT_GUARD;
object->modulation = DEFAULT_MODULATION;
object->transmission_mode = DEFAULT_TRANSMISSION_MODE;
object->hierarchy_information = DEFAULT_HIERARCHY;
object->inversion = DEFAULT_INVERSION;
object->stats_interval = DEFAULT_STATS_REPORTING_INTERVAL;
object->tune_mutex = g_mutex_new ();
object->timeout = DEFAULT_TIMEOUT;
}
static void
gst_dvbsrc_set_property (GObject * _object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstDvbSrc *object;
g_return_if_fail (GST_IS_DVBSRC (_object));
object = GST_DVBSRC (_object);
switch (prop_id) {
case ARG_DVBSRC_ADAPTER:
object->adapter_number = g_value_get_int (value);
break;
case ARG_DVBSRC_FRONTEND:
object->frontend_number = g_value_get_int (value);
break;
case ARG_DVBSRC_DISEQC_SRC:
if (object->diseqc_src != g_value_get_int (value)) {
object->diseqc_src = g_value_get_int (value);
object->send_diseqc = TRUE;
}
GST_INFO_OBJECT (object, "Set Property: ARG_DVBSRC_DISEQC_ID");
break;
case ARG_DVBSRC_FREQUENCY:
object->freq = g_value_get_uint (value);
GST_INFO_OBJECT (object, "Set Property: ARG_DVBSRC_FREQUENCY");
break;
case ARG_DVBSRC_POLARITY:
{
const char *s = NULL;
s = g_value_get_string (value);
if (s != NULL)
object->pol = (s[0] == 'h' || s[0] == 'H') ? DVB_POL_H : DVB_POL_V;
}
GST_INFO_OBJECT (object, "Set Property: ARG_DVBSRC_POLARITY");
break;
case ARG_DVBSRC_PIDS:
{
gchar *pid_string;
GST_INFO_OBJECT (object, "Set Property: ARG_DVBSRC_PIDS");
pid_string = g_value_dup_string (value);
if (!strcmp (pid_string, "8192")) {
/* get the whole ts */
int pid_count = 1;
object->pids[0] = 8192;
while (pid_count < MAX_FILTERS) {
object->pids[pid_count++] = G_MAXUINT16;
}
} else {
int pid = 0;
int pid_count;
gchar **pids;
char **tmp;
tmp = pids = g_strsplit (pid_string, ":", MAX_FILTERS);
if (pid_string)
g_free (pid_string);
/* always add the PAT and CAT pids */
object->pids[0] = 0;
object->pids[1] = 1;
pid_count = 2;
while (*pids != NULL && pid_count < MAX_FILTERS) {
pid = strtol (*pids, NULL, 0);
if (pid > 1 && pid <= 8192) {
GST_INFO_OBJECT (object, "Parsed Pid: %d\n", pid);
object->pids[pid_count] = pid;
pid_count++;
}
pids++;
}
while (pid_count < MAX_FILTERS) {
object->pids[pid_count++] = G_MAXUINT16;
}
g_strfreev (tmp);
}
/* if we are in playing or paused, then set filters now */
GST_INFO_OBJECT (object, "checking if playing for setting pes filters");
if (GST_ELEMENT (object)->current_state == GST_STATE_PLAYING ||
GST_ELEMENT (object)->current_state == GST_STATE_PAUSED) {
GST_INFO_OBJECT (object, "Setting pes filters now");
gst_dvbsrc_set_pes_filters (object);
}
}
break;
case ARG_DVBSRC_SYM_RATE:
object->sym_rate = g_value_get_uint (value);
GST_INFO_OBJECT (object, "Set Property: ARG_DVBSRC_SYM_RATE to value %d",
g_value_get_int (value));
break;
case ARG_DVBSRC_BANDWIDTH:
object->bandwidth = g_value_get_enum (value);
break;
case ARG_DVBSRC_CODE_RATE_HP:
object->code_rate_hp = g_value_get_enum (value);
break;
case ARG_DVBSRC_CODE_RATE_LP:
object->code_rate_lp = g_value_get_enum (value);
break;
case ARG_DVBSRC_GUARD:
object->guard_interval = g_value_get_enum (value);
break;
case ARG_DVBSRC_MODULATION:
object->modulation = g_value_get_enum (value);
break;
case ARG_DVBSRC_TRANSMISSION_MODE:
object->transmission_mode = g_value_get_enum (value);
break;
case ARG_DVBSRC_HIERARCHY_INF:
object->hierarchy_information = g_value_get_enum (value);
break;
case ARG_DVBSRC_INVERSION:
object->inversion = g_value_get_enum (value);
break;
case ARG_DVBSRC_TUNE:{
GST_INFO_OBJECT (object, "Set Property: ARG_DVBSRC_TUNE");
/* if we are in paused/playing state tune now, otherwise in ready to paused state change */
if (GST_STATE (object) > GST_STATE_READY) {
g_mutex_lock (object->tune_mutex);
gst_dvbsrc_tune (object);
g_mutex_unlock (object->tune_mutex);
}
break;
}
case ARG_DVBSRC_STATS_REPORTING_INTERVAL:
object->stats_interval = g_value_get_uint (value);
object->stats_counter = 0;
break;
case ARG_DVBSRC_TIMEOUT:
object->timeout = g_value_get_uint64 (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
gst_dvbsrc_get_property (GObject * _object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstDvbSrc *object;
g_return_if_fail (GST_IS_DVBSRC (_object));
object = GST_DVBSRC (_object);
switch (prop_id) {
case ARG_DVBSRC_ADAPTER:
g_value_set_int (value, object->adapter_number);
break;
case ARG_DVBSRC_FRONTEND:
g_value_set_int (value, object->frontend_number);
break;
case ARG_DVBSRC_FREQUENCY:
g_value_set_uint (value, object->freq);
break;
case ARG_DVBSRC_POLARITY:
if (object->pol == DVB_POL_H)
g_value_set_static_string (value, "H");
else
g_value_set_static_string (value, "V");
break;
case ARG_DVBSRC_SYM_RATE:
g_value_set_uint (value, object->sym_rate);
break;
case ARG_DVBSRC_DISEQC_SRC:
g_value_set_int (value, object->diseqc_src);
break;
case ARG_DVBSRC_BANDWIDTH:
g_value_set_enum (value, object->bandwidth);
break;
case ARG_DVBSRC_CODE_RATE_HP:
g_value_set_enum (value, object->code_rate_hp);
break;
case ARG_DVBSRC_CODE_RATE_LP:
g_value_set_enum (value, object->code_rate_lp);
break;
case ARG_DVBSRC_GUARD:
g_value_set_enum (value, object->guard_interval);
break;
case ARG_DVBSRC_MODULATION:
g_value_set_enum (value, object->modulation);
break;
case ARG_DVBSRC_TRANSMISSION_MODE:
g_value_set_enum (value, object->transmission_mode);
break;
case ARG_DVBSRC_HIERARCHY_INF:
g_value_set_enum (value, object->hierarchy_information);
break;
case ARG_DVBSRC_INVERSION:
g_value_set_enum (value, object->inversion);
break;
case ARG_DVBSRC_STATS_REPORTING_INTERVAL:
g_value_set_uint (value, object->stats_interval);
break;
case ARG_DVBSRC_TIMEOUT:
g_value_set_uint64 (value, object->timeout);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static gboolean
gst_dvbsrc_close_devices (GstDvbSrc * object)
{
gst_dvbsrc_unset_pes_filters (object);
close (object->fd_dvr);
object->fd_dvr = -1;
close (object->fd_frontend);
object->fd_frontend = -1;
return TRUE;
}
static gboolean
gst_dvbsrc_open_frontend (GstDvbSrc * object)
{
struct dvb_frontend_info fe_info;
const char *adapter_desc = NULL;
gchar *frontend_dev;
GstStructure *adapter_structure;
char *adapter_name = NULL;
frontend_dev = g_strdup_printf ("/dev/dvb/adapter%d/frontend%d",
object->adapter_number, object->frontend_number);
GST_INFO_OBJECT (object, "Using frontend device: %s", frontend_dev);
/* open frontend */
if ((object->fd_frontend = open (frontend_dev, O_RDWR)) < 0) {
switch (errno) {
case ENOENT:
GST_ELEMENT_ERROR (object, RESOURCE, NOT_FOUND,
(_("Device \"%s\" does not exist."), frontend_dev), (NULL));
break;
default:
GST_ELEMENT_ERROR (object, RESOURCE, OPEN_READ_WRITE,
(_("Could not open frontend device \"%s\"."), frontend_dev),
GST_ERROR_SYSTEM);
break;
}
close (object->fd_frontend);
g_free (frontend_dev);
return FALSE;
}
if (ioctl (object->fd_frontend, FE_GET_INFO, &fe_info) < 0) {
GST_ELEMENT_ERROR (object, RESOURCE, SETTINGS,
(_("Could not get settings from frontend device \"%s\"."),
frontend_dev), GST_ERROR_SYSTEM);
close (object->fd_frontend);
g_free (frontend_dev);
return FALSE;
}
adapter_name = g_strdup (fe_info.name);
object->adapter_type = fe_info.type;
switch (object->adapter_type) {
case FE_QPSK:
adapter_desc = "DVB-S";
adapter_structure = gst_structure_new ("dvb-adapter",
"type", G_TYPE_STRING, adapter_desc,
"name", G_TYPE_STRING, adapter_name,
"auto-fec", G_TYPE_BOOLEAN, fe_info.caps & FE_CAN_FEC_AUTO, NULL);
break;
case FE_QAM:
adapter_desc = "DVB-C";
adapter_structure = gst_structure_new ("dvb-adapter",
"type", G_TYPE_STRING, adapter_desc,
"name", G_TYPE_STRING, adapter_name,
"auto-inversion", G_TYPE_BOOLEAN,
fe_info.caps & FE_CAN_INVERSION_AUTO, "auto-qam", G_TYPE_BOOLEAN,
fe_info.caps & FE_CAN_QAM_AUTO, "auto-fec", G_TYPE_BOOLEAN,
fe_info.caps & FE_CAN_FEC_AUTO, NULL);
break;
case FE_OFDM:
adapter_desc = "DVB-T";
adapter_structure = gst_structure_new ("dvb-adapter",
"type", G_TYPE_STRING, adapter_desc,
"name", G_TYPE_STRING, adapter_name,
"auto-inversion", G_TYPE_BOOLEAN,
fe_info.caps & FE_CAN_INVERSION_AUTO, "auto-qam", G_TYPE_BOOLEAN,
fe_info.caps & FE_CAN_QAM_AUTO, "auto-transmission-mode",
G_TYPE_BOOLEAN, fe_info.caps & FE_CAN_TRANSMISSION_MODE_AUTO,
"auto-guard-interval", G_TYPE_BOOLEAN,
fe_info.caps & FE_CAN_GUARD_INTERVAL_AUTO, "auto-hierarchy",
G_TYPE_BOOLEAN, fe_info.caps % FE_CAN_HIERARCHY_AUTO, "auto-fec",
G_TYPE_BOOLEAN, fe_info.caps & FE_CAN_FEC_AUTO, NULL);
break;
case FE_ATSC:
adapter_desc = "ATSC";
adapter_structure = gst_structure_new ("dvb-adapter",
"type", G_TYPE_STRING, adapter_desc,
"name", G_TYPE_STRING, adapter_name, NULL);
break;
default:
g_error ("Unknown frontend type: %d", object->adapter_type);
adapter_structure = gst_structure_new ("dvb-adapter",
"type", G_TYPE_STRING, "unknown", NULL);
}
GST_INFO_OBJECT (object, "DVB card: %s ", adapter_name);
gst_element_post_message (GST_ELEMENT_CAST (object), gst_message_new_element
(GST_OBJECT (object), adapter_structure));
g_free (frontend_dev);
g_free (adapter_name);
return TRUE;
}
static gboolean
gst_dvbsrc_open_dvr (GstDvbSrc * object)
{
gchar *dvr_dev;
dvr_dev = g_strdup_printf ("/dev/dvb/adapter%d/dvr%d",
object->adapter_number, object->frontend_number);
GST_INFO_OBJECT (object, "Using dvr device: %s", dvr_dev);
/* open DVR */
if ((object->fd_dvr = open (dvr_dev, O_RDONLY | O_NONBLOCK)) < 0) {
switch (errno) {
case ENOENT:
GST_ELEMENT_ERROR (object, RESOURCE, NOT_FOUND,
(_("Device \"%s\" does not exist."), dvr_dev), (NULL));
break;
default:
GST_ELEMENT_ERROR (object, RESOURCE, OPEN_READ,
(_("Could not open file \"%s\" for reading."), dvr_dev),
GST_ERROR_SYSTEM);
break;
}
g_free (dvr_dev);
return FALSE;
}
g_free (dvr_dev);
GST_INFO_OBJECT (object, "Setting buffer size");
if (ioctl (object->fd_dvr, DMX_SET_BUFFER_SIZE, 1024 * 1024) < 0) {
GST_INFO_OBJECT (object, "DMX_SET_BUFFER_SIZE failed");
return FALSE;
}
return TRUE;
}
static void
gst_dvbsrc_finalize (GObject * _object)
{
GstDvbSrc *object;
GST_DEBUG_OBJECT (_object, "gst_dvbsrc_finalize");
g_return_if_fail (GST_IS_DVBSRC (_object));
object = GST_DVBSRC (_object);
/* freeing the mutex segfaults somehow */
g_mutex_free (object->tune_mutex);
if (G_OBJECT_CLASS (parent_class)->finalize)
G_OBJECT_CLASS (parent_class)->finalize (_object);
}
/*
******************************
* *
* Plugin Realisation *
* *
******************************
*/
/* entry point to initialize the plug-in
* initialize the plug-in itself
* register the element factories and pad templates
* register the features
*/
gboolean
gst_dvbsrc_plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (gstdvbsrc_debug, "dvbsrc", 0, "DVB Source Element");
#ifdef ENABLE_NLS
GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
LOCALEDIR);
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
#endif /* ENABLE_NLS */
return gst_element_register (plugin, "dvbsrc", GST_RANK_NONE,
GST_TYPE_DVBSRC);
}
static GstBuffer *
gst_dvbsrc_read_device (GstDvbSrc * object, int size)
{
gint count = 0;
gint ret_val = 0;
GstBuffer *buf = gst_buffer_new_and_alloc (size);
GstClockTime timeout = object->timeout * GST_USECOND;
g_return_val_if_fail (GST_IS_BUFFER (buf), NULL);
if (object->fd_dvr < 0)
return NULL;
while (count < size) {
ret_val = gst_poll_wait (object->poll, timeout);
GST_LOG_OBJECT (object, "select returned %d", ret_val);
if (G_UNLIKELY (ret_val < 0)) {
if (errno == EBUSY)
goto stopped;
else
goto select_error;
} else if (G_UNLIKELY (ret_val == 0)) {
/* timeout, post element message */
gst_element_post_message (GST_ELEMENT_CAST (object),
gst_message_new_element (GST_OBJECT (object),
gst_structure_empty_new ("dvb-read-failure")));
} else {
int nread =
read (object->fd_dvr, GST_BUFFER_DATA (buf) + count, size - count);
if (G_UNLIKELY (nread < 0)) {
GST_WARNING_OBJECT
(object,
"Unable to read from device: /dev/dvb/adapter%d/dvr%d (%d)",
object->adapter_number, object->frontend_number, errno);
gst_element_post_message (GST_ELEMENT_CAST (object),
gst_message_new_element (GST_OBJECT (object),
gst_structure_empty_new ("dvb-read-failure")));
} else
count = count + nread;
}
}
GST_BUFFER_SIZE (buf) = count;
GST_BUFFER_TIMESTAMP (buf) = GST_CLOCK_TIME_NONE;
return buf;
stopped:
GST_DEBUG_OBJECT (object, "stop called");
gst_buffer_unref (buf);
return NULL;
select_error:
GST_ELEMENT_ERROR (object, RESOURCE, READ, (NULL),
("select error %d: %s (%d)", ret_val, g_strerror (errno), errno));
gst_buffer_unref (buf);
return NULL;
}
static GstFlowReturn
gst_dvbsrc_create (GstPushSrc * element, GstBuffer ** buf)
{
gint buffer_size;
GstFlowReturn retval = GST_FLOW_ERROR;
GstDvbSrc *object;
object = GST_DVBSRC (element);
GST_LOG ("fd_dvr: %d", object->fd_dvr);
//g_object_get(G_OBJECT(object), "blocksize", &buffer_size, NULL);
buffer_size = DEFAULT_BUFFER_SIZE;
/* device can not be tuned during read */
g_mutex_lock (object->tune_mutex);
if (object->fd_dvr > -1) {
/* --- Read TS from DVR device --- */
GST_DEBUG_OBJECT (object, "Reading from DVR device");
*buf = gst_dvbsrc_read_device (object, buffer_size);
if (*buf != NULL) {
GstCaps *caps;
retval = GST_FLOW_OK;
caps = gst_pad_get_caps (GST_BASE_SRC_PAD (object));
gst_buffer_set_caps (*buf, caps);
gst_caps_unref (caps);
}
if (object->stats_interval != 0 &&
++object->stats_counter == object->stats_interval) {
gst_dvbsrc_output_frontend_stats (object);
object->stats_counter = 0;
}
}
g_mutex_unlock (object->tune_mutex);
return retval;
}
static GstStateChangeReturn
gst_dvbsrc_change_state (GstElement * element, GstStateChange transition)
{
GstDvbSrc *src;
GstStateChangeReturn ret;
src = GST_DVBSRC (element);
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
/* open frontend then close it again, just so caps sent */
gst_dvbsrc_open_frontend (src);
if (src->fd_frontend) {
close (src->fd_frontend);
}
break;
default:
break;
}
return ret;
}
static gboolean
gst_dvbsrc_start (GstBaseSrc * bsrc)
{
GstDvbSrc *src = GST_DVBSRC (bsrc);
gst_dvbsrc_open_frontend (src);
if (!gst_dvbsrc_tune (src)) {
GST_ERROR_OBJECT (src, "Not able to lock on to the dvb channel");
close (src->fd_frontend);
return FALSE;
}
if (!gst_dvbsrc_frontend_status (src)) {
/* unset filters also */
gst_dvbsrc_unset_pes_filters (src);
close (src->fd_frontend);
return FALSE;
}
if (!gst_dvbsrc_open_dvr (src)) {
GST_ERROR_OBJECT (src, "Not able to open dvr_device");
/* unset filters also */
gst_dvbsrc_unset_pes_filters (src);
close (src->fd_frontend);
return FALSE;
}
if (!(src->poll = gst_poll_new (TRUE))) {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ_WRITE, (NULL),
("could not create an fdset: %s (%d)", g_strerror (errno), errno));
/* unset filters also */
gst_dvbsrc_unset_pes_filters (src);
close (src->fd_frontend);
return FALSE;
} else {
gst_poll_fd_init (&src->poll_fd_dvr);
src->poll_fd_dvr.fd = src->fd_dvr;
gst_poll_add_fd (src->poll, &src->poll_fd_dvr);
gst_poll_fd_ctl_read (src->poll, &src->poll_fd_dvr, TRUE);
}
return TRUE;
}
static gboolean
gst_dvbsrc_stop (GstBaseSrc * bsrc)
{
GstDvbSrc *src = GST_DVBSRC (bsrc);
gst_dvbsrc_close_devices (src);
if (src->poll) {
gst_poll_free (src->poll);
src->poll = NULL;
}
return TRUE;
}
static gboolean
gst_dvbsrc_unlock (GstBaseSrc * bsrc)
{
GstDvbSrc *src = GST_DVBSRC (bsrc);
gst_poll_set_flushing (src->poll, TRUE);
return TRUE;
}
static gboolean
gst_dvbsrc_unlock_stop (GstBaseSrc * bsrc)
{
GstDvbSrc *src = GST_DVBSRC (bsrc);
gst_poll_set_flushing (src->poll, FALSE);
return TRUE;
}
static gboolean
gst_dvbsrc_is_seekable (GstBaseSrc * bsrc)
{
return FALSE;
}
static gboolean
gst_dvbsrc_get_size (GstBaseSrc * src, guint64 * size)
{
return FALSE;
}
static void
gst_dvbsrc_output_frontend_stats (GstDvbSrc * src)
{
fe_status_t status;
uint16_t snr, _signal;
uint32_t ber, uncorrected_blocks;
GstMessage *message;
GstStructure *structure;
int fe_fd = src->fd_frontend;
ioctl (fe_fd, FE_READ_STATUS, &status);
ioctl (fe_fd, FE_READ_SIGNAL_STRENGTH, &_signal);
ioctl (fe_fd, FE_READ_SNR, &snr);
ioctl (fe_fd, FE_READ_BER, &ber);
ioctl (fe_fd, FE_READ_UNCORRECTED_BLOCKS, &uncorrected_blocks);
structure = gst_structure_new ("dvb-frontend-stats", "status", G_TYPE_INT,
status, "signal", G_TYPE_INT, _signal, "snr", G_TYPE_INT, snr,
"ber", G_TYPE_INT, ber, "unc", G_TYPE_INT, uncorrected_blocks,
"lock", G_TYPE_BOOLEAN, status & FE_HAS_LOCK, NULL);
message = gst_message_new_element (GST_OBJECT (src), structure);
gst_element_post_message (GST_ELEMENT (src), message);
}
static gboolean
gst_dvbsrc_frontend_status (GstDvbSrc * object)
{
fe_status_t status = 0;
gint i;
GST_INFO_OBJECT (object, "gst_dvbsrc_frontend_status\n");
if (object->fd_frontend < 0) {
GST_ERROR_OBJECT (object,
"Trying to get frontend status from not opened device!");
return FALSE;
} else
GST_INFO_OBJECT (object, "fd-frontend: %d", object->fd_frontend);
for (i = 0; i < 15; i++) {
usleep (1000000);
GST_INFO_OBJECT (object, ".");
if (ioctl (object->fd_frontend, FE_READ_STATUS, &status) == -1) {
GST_ERROR_OBJECT (object, "Failed reading frontend status.");
return FALSE;
}
gst_dvbsrc_output_frontend_stats (object);
if (status & FE_HAS_LOCK) {
break;
}
}
if (!(status & FE_HAS_LOCK)) {
GST_INFO_OBJECT (object,
"Not able to lock to the signal on the given frequency.\n");
return FALSE;
} else
return TRUE;
}
struct diseqc_cmd
{
struct dvb_diseqc_master_cmd cmd;
uint32_t wait;
};
static void
diseqc_send_msg (int fd, fe_sec_voltage_t v, struct diseqc_cmd *cmd,
fe_sec_tone_mode_t t, fe_sec_mini_cmd_t b)
{
if (ioctl (fd, FE_SET_TONE, SEC_TONE_OFF) == -1) {
GST_ERROR ("Setting tone to off failed");
return;
}
if (ioctl (fd, FE_SET_VOLTAGE, v) == -1) {
GST_ERROR ("Setting voltage failed");
return;
}
usleep (15 * 1000);
GST_LOG ("diseqc: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", cmd->cmd.msg[0],
cmd->cmd.msg[1], cmd->cmd.msg[2], cmd->cmd.msg[3], cmd->cmd.msg[4],
cmd->cmd.msg[5]);
if (ioctl (fd, FE_DISEQC_SEND_MASTER_CMD, &cmd->cmd) == -1) {
GST_ERROR ("Sending diseqc command failed");
return;
}
usleep (cmd->wait * 1000);
usleep (15 * 1000);
if (ioctl (fd, FE_DISEQC_SEND_BURST, b) == -1) {
GST_ERROR ("Sending burst failed");
return;
}
usleep (15 * 1000);
if (ioctl (fd, FE_SET_TONE, t) == -1) {
GST_ERROR ("Setting tone failed");
return;
}
}
/* digital satellite equipment control,
* specification is available from http://www.eutelsat.com/
*/
static void
diseqc (int secfd, int sat_no, int voltage, int tone)
{
struct diseqc_cmd cmd = { {{0xe0, 0x10, 0x38, 0xf0, 0x00, 0x00}, 4}, 0 };
/* param: high nibble: reset bits, low nibble set bits,
* bits are: option, position, polarizaion, band
*/
cmd.cmd.msg[3] =
0xf0 | (((sat_no * 4) & 0x0f) | (tone == SEC_TONE_ON ? 1 : 0) |
(voltage == SEC_VOLTAGE_13 ? 0 : 2));
/* send twice because some diseqc switches do not respond correctly the
* first time */
diseqc_send_msg (secfd, voltage, &cmd, tone,
sat_no % 2 ? SEC_MINI_B : SEC_MINI_A);
diseqc_send_msg (secfd, voltage, &cmd, tone,
sat_no % 2 ? SEC_MINI_B : SEC_MINI_A);
}
static gboolean
gst_dvbsrc_tune (GstDvbSrc * object)
{
#if DVB_API_VERSION == 3 && DVB_API_VERSION_MINOR == 3
struct dvbfe_params feparams;
#else
struct dvb_frontend_parameters feparams;
#endif
fe_sec_voltage_t voltage;
fe_status_t status;
int i;
int j;
unsigned int freq = object->freq;
unsigned int sym_rate = object->sym_rate * 1000;
/* found in mail archive on linuxtv.org
* What works well for us is:
* - first establish a TS feed (i.e. tune the frontend and check for success)
* - then set filters (PES/sections)
* - then tell the MPEG decoder to start
* - before tuning: first stop the MPEG decoder, then stop all filters
*/
GST_INFO_OBJECT (object, "gst_dvbsrc_tune");
if (object->fd_frontend < 0) {
/* frontend not opened yet, tune later */
GST_INFO_OBJECT (object, "Frontend not open: tuning later");
return FALSE;
}
gst_dvbsrc_unset_pes_filters (object);
for (j = 0; j < 5; j++) {
switch (object->adapter_type) {
case FE_QPSK:
object->tone = SEC_TONE_OFF;
if (freq > 2200000) {
// this must be an absolute frequency
if (freq < SLOF) {
feparams.frequency = (freq - LOF1);
} else {
feparams.frequency = (freq - LOF2);
object->tone = SEC_TONE_ON;
}
} else {
// this is an L-Band frequency
feparams.frequency = freq;
}
feparams.inversion = INVERSION_AUTO;
GST_DEBUG_OBJECT (object, "api version %d.%d", DVB_API_VERSION,
DVB_API_VERSION_MINOR);
#if DVB_API_VERSION == 3 && DVB_API_VERSION_MINOR == 3
GST_DEBUG_OBJECT (object, "using multiproto driver");
feparams.delsys.dvbs.symbol_rate = sym_rate;
feparams.delsys.dvbs.fec = object->code_rate_hp;
#else
feparams.u.qpsk.symbol_rate = sym_rate;
feparams.u.qpsk.fec_inner = object->code_rate_hp;
#endif
GST_INFO_OBJECT (object,
"tuning DVB-S to L-Band:%u, Pol:%d, srate=%u, 22kHz=%s",
feparams.frequency, object->pol, sym_rate,
object->tone == SEC_TONE_ON ? "on" : "off");
if (object->pol == DVB_POL_H)
voltage = SEC_VOLTAGE_18;
else
voltage = SEC_VOLTAGE_13;
if (object->diseqc_src == -1 || object->send_diseqc == FALSE) {
if (ioctl (object->fd_frontend, FE_SET_VOLTAGE, voltage) < 0) {
g_warning ("Unable to set voltage on dvb frontend device");
}
if (ioctl (object->fd_frontend, FE_SET_TONE, object->tone) < 0) {
g_warning ("Error setting tone: %s", strerror (errno));
}
} else {
GST_DEBUG_OBJECT (object, "Sending DISEqC");
diseqc (object->fd_frontend, object->diseqc_src, voltage,
object->tone);
/* Once diseqc source is set, do not set it again until
* app decides to change it */
//object->send_diseqc = FALSE;
}
break;
case FE_OFDM:
feparams.frequency = freq;
#if DVB_API_VERSION == 3 && DVB_API_VERSION_MINOR == 3
feparams.delsys.dvbs.fec = object->code_rate_hp;
feparams.delsys.dvbs.modulation = object->modulation;
feparams.delsys.dvbs.symbol_rate = sym_rate;
#else
feparams.u.ofdm.bandwidth = object->bandwidth;
feparams.u.ofdm.code_rate_HP = object->code_rate_hp;
feparams.u.ofdm.code_rate_LP = object->code_rate_lp;
feparams.u.ofdm.constellation = object->modulation;
feparams.u.ofdm.transmission_mode = object->transmission_mode;
feparams.u.ofdm.guard_interval = object->guard_interval;
feparams.u.ofdm.hierarchy_information = object->hierarchy_information;
#endif
feparams.inversion = object->inversion;
GST_INFO_OBJECT (object, "tuning DVB-T to %d Hz\n", freq);
break;
case FE_QAM:
GST_INFO_OBJECT (object, "Tuning DVB-C to %d, srate=%d", freq,
sym_rate);
feparams.frequency = freq;
feparams.inversion = object->inversion;
#if DVB_API_VERSION == 3 && DVB_API_VERSION_MINOR == 3
feparams.delsys.dvbs.fec = object->code_rate_hp;
feparams.delsys.dvbs.modulation = object->modulation;
feparams.delsys.dvbs.symbol_rate = sym_rate;
#else
feparams.u.qam.fec_inner = object->code_rate_hp;
feparams.u.qam.modulation = object->modulation;
feparams.u.qam.symbol_rate = sym_rate;
#endif
break;
case FE_ATSC:
GST_INFO_OBJECT (object, "Tuning ATSC to %d", freq);
feparams.frequency = freq;
#if DVB_API_VERSION == 3 && DVB_API_VERSION_MINOR == 3
feparams.delsys.atsc.modulation = object->modulation;
#else
feparams.u.vsb.modulation = object->modulation;
#endif
break;
default:
g_error ("Unknown frontend type: %d", object->adapter_type);
}
usleep (100000);
/* now tune the frontend */
#if DVB_API_VERSION == 3 && DVB_API_VERSION_MINOR == 3
if (ioctl (object->fd_frontend, DVBFE_SET_PARAMS, &feparams) < 0) {
#else
if (ioctl (object->fd_frontend, FE_SET_FRONTEND, &feparams) < 0) {
#endif
g_warning ("Error tuning channel: %s", strerror (errno));
}
for (i = 0; i < 50; i++) {
usleep (100000);
if (ioctl (object->fd_frontend, FE_READ_STATUS, &status) == -1) {
perror ("FE_READ_STATUS");
break;
}
GST_LOG_OBJECT (object, "status == 0x%02x", status);
if (status & FE_HAS_LOCK)
break;
}
if (status & FE_HAS_LOCK)
break;
}
if (!(status & FE_HAS_LOCK))
return FALSE;
/* set pid filters */
gst_dvbsrc_set_pes_filters (object);
return TRUE;
}
static void
gst_dvbsrc_unset_pes_filters (GstDvbSrc * object)
{
int i = 0;
GST_INFO_OBJECT (object, "clearing PES filter");
for (i = 0; i < MAX_FILTERS; i++) {
if (object->fd_filters[i] == -1)
continue;
close (object->fd_filters[i]);
object->fd_filters[i] = -1;
}
}
static void
gst_dvbsrc_set_pes_filters (GstDvbSrc * object)
{
int *fd;
int pid, i;
struct dmx_pes_filter_params pes_filter;
gchar *demux_dev = g_strdup_printf ("/dev/dvb/adapter%d/demux%d",
object->adapter_number, object->frontend_number);
GST_INFO_OBJECT (object, "Setting PES filter");
for (i = 0; i < MAX_FILTERS; i++) {
if (object->pids[i] == G_MAXUINT16)
break;
fd = &object->fd_filters[i];
pid = object->pids[i];
close (*fd);
if ((*fd = open (demux_dev, O_RDWR)) < 0) {
g_error ("Error opening demuxer: %s (%s)", strerror (errno), demux_dev);
g_free (demux_dev);
}
g_return_if_fail (*fd != -1);
pes_filter.pid = pid;
pes_filter.input = DMX_IN_FRONTEND;
pes_filter.output = DMX_OUT_TS_TAP;
pes_filter.pes_type = DMX_PES_OTHER;
pes_filter.flags = DMX_IMMEDIATE_START;
GST_INFO_OBJECT (object, "Setting pes-filter, pid = %d, type = %d",
pes_filter.pid, pes_filter.pes_type);
if (ioctl (*fd, DMX_SET_PES_FILTER, &pes_filter) < 0)
GST_WARNING_OBJECT (object, "Error setting PES filter on %s: %s",
demux_dev, strerror (errno));
}
g_free (demux_dev);
}
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