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-rw-r--r--stream/tv.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/stream/tv.c b/stream/tv.c
index 12d23895b9..ce1622b468 100644
--- a/stream/tv.c
+++ b/stream/tv.c
@@ -30,6 +30,7 @@
#include "libaf/af_format.h"
#include "libmpcodecs/img_format.h"
#include "libavutil/avstring.h"
+#include "osdep/timer.h"
#include "tv.h"
@@ -65,6 +66,92 @@ static const tvi_info_t* tvi_driver_list[]={
NULL
};
+void tv_start_scan(tvi_handle_t *tvh, int start)
+{
+ mp_msg(MSGT_TV,MSGL_INFO,"start scan\n");
+ tvh->tv_param->scan=start?1:0;
+}
+
+static void tv_scan(tvi_handle_t *tvh)
+{
+ unsigned int now;
+ struct CHANLIST cl;
+ tv_channels_t *tv_channel_tmp=NULL;
+ tv_channels_t *tv_channel_add=NULL;
+ tv_scan_t* scan;
+ int found=0, index=1;
+
+ scan = tvh->scan;
+ now=GetTimer();
+ if (!scan) {
+ scan=calloc(1,sizeof(tv_scan_t));
+ tvh->scan=scan;
+ cl = tvh->chanlist_s[scan->channel_num];
+ tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
+ scan->scan_timer=now+1e6*tvh->tv_param->scan_period;
+ }
+ if(scan->scan_timer>now)
+ return;
+
+ if (tv_get_signal(tvh)>tvh->tv_param->scan_threshold) {
+ cl = tvh->chanlist_s[scan->channel_num];
+ tv_channel_tmp=tv_channel_list;
+ while (tv_channel_tmp) {
+ index++;
+ if (cl.freq==tv_channel_tmp->freq){
+ found=1;
+ break;
+ }
+ tv_channel_add=tv_channel_tmp;
+ tv_channel_tmp=tv_channel_tmp->next;
+ }
+ if (!found) {
+ mp_msg(MSGT_TV, MSGL_INFO, "Found new channel: %s (#%d). \n",cl.name,index);
+ scan->new_channels++;
+ tv_channel_tmp = malloc(sizeof(tv_channels_t));
+ tv_channel_tmp->index=index;
+ tv_channel_tmp->next=NULL;
+ tv_channel_tmp->prev=tv_channel_add;
+ tv_channel_tmp->freq=cl.freq;
+ snprintf(tv_channel_tmp->name,sizeof(tv_channel_tmp->name),"ch%d",index);
+ strncpy(tv_channel_tmp->number, cl.name, 5);
+ tv_channel_tmp->number[4]='\0';
+ if (!tv_channel_list)
+ tv_channel_list=tv_channel_tmp;
+ else {
+ tv_channel_add->next=tv_channel_tmp;
+ tv_channel_list->prev=tv_channel_tmp;
+ }
+ }else
+ mp_msg(MSGT_TV, MSGL_INFO, "Found existing channel: %s-%s.\n",
+ tv_channel_tmp->number,tv_channel_tmp->name);
+ }
+ scan->channel_num++;
+ scan->scan_timer=now+1e6*tvh->tv_param->scan_period;
+ if (scan->channel_num>=chanlists[tvh->chanlist].count) {
+ tvh->tv_param->scan=0;
+ mp_msg(MSGT_TV, MSGL_INFO, "TV scan end. Found %d new channels.\n", scan->new_channels);
+ tv_channel_tmp=tv_channel_list;
+ if(tv_channel_tmp){
+ mp_msg(MSGT_TV,MSGL_INFO,"channels=");
+ while(tv_channel_tmp){
+ mp_msg(MSGT_TV,MSGL_INFO,"%s-%s",tv_channel_tmp->number,tv_channel_tmp->name);
+ if(tv_channel_tmp->next)
+ mp_msg(MSGT_TV,MSGL_INFO,",");
+ tv_channel_tmp=tv_channel_tmp->next;
+ }
+ }
+ if (!tv_channel_current) tv_channel_current=tv_channel_list;
+ if (tv_channel_current)
+ tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
+ free(tvh->scan);
+ tvh->scan=NULL;
+ }else{
+ cl = tvh->chanlist_s[scan->channel_num];
+ tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
+ mp_msg(MSGT_TV, MSGL_INFO, "Trying: %s (%.2f). \n",cl.name,1e-3*cl.freq);
+ }
+}
/* ================== DEMUX_TV ===================== */
/*
@@ -106,6 +193,7 @@ static int demux_tv_fill_buffer(demuxer_t *demux, demux_stream_t *ds)
ds_add_packet(demux->video,dp);
}
+ if (tvh->tv_param->scan) tv_scan(tvh);
return 1;
}
@@ -738,6 +826,16 @@ int tv_set_freq(tvi_handle_t *tvh, unsigned long freq)
return(1);
}
+int tv_get_signal(tvi_handle_t *tvh)
+{
+ int signal=0;
+ if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) != TVI_CONTROL_TRUE ||
+ tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_GET_SIGNAL, &signal)!=TVI_CONTROL_TRUE)
+ return 0;
+
+ return signal;
+}
+
/*****************************************************************
* \brief tune current frequency by step_interval value
* \parameter step_interval increment value in 1/16 MHz
@@ -748,6 +846,7 @@ int tv_set_freq(tvi_handle_t *tvh, unsigned long freq)
int tv_step_freq(tvi_handle_t* tvh, float step_interval){
unsigned long frequency;
+ tvh->tv_param->scan=0;
tv_get_freq(tvh,&frequency);
frequency+=step_interval;
return tv_set_freq(tvh,frequency);
@@ -757,6 +856,7 @@ int tv_step_channel_real(tvi_handle_t *tvh, int direction)
{
struct CHANLIST cl;
+ tvh->tv_param->scan=0;
if (direction == TV_CHANNEL_LOWER)
{
if (tvh->channel-1 >= 0)
@@ -784,6 +884,7 @@ int tv_step_channel_real(tvi_handle_t *tvh, int direction)
}
int tv_step_channel(tvi_handle_t *tvh, int direction) {
+ tvh->tv_param->scan=0;
if (tv_channel_list) {
if (direction == TV_CHANNEL_HIGHER) {
tv_channel_last = tv_channel_current;
@@ -814,6 +915,7 @@ int tv_set_channel_real(tvi_handle_t *tvh, char *channel) {
int i;
struct CHANLIST cl;
+ tvh->tv_param->scan=0;
strcpy(tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
for (i = 0; i < chanlists[tvh->chanlist].count; i++)
{
@@ -835,6 +937,7 @@ int tv_set_channel_real(tvi_handle_t *tvh, char *channel) {
int tv_set_channel(tvi_handle_t *tvh, char *channel) {
int i, channel_int;
+ tvh->tv_param->scan=0;
if (tv_channel_list) {
tv_channel_last = tv_channel_current;
channel_int = atoi(channel);
@@ -851,6 +954,7 @@ int tv_set_channel(tvi_handle_t *tvh, char *channel) {
int tv_last_channel(tvi_handle_t *tvh) {
+ tvh->tv_param->scan=0;
if (tv_channel_list) {
tv_channels_t *tmp;