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mpv/stream/tv.c
Frédéric Brière aaad2d847e tv: Zero-out newly-allocated handle in tv_new_handle() 
Some fields (notably tv_channel_list) were left uninitialized,
potentially causing problems later on.

Fixes #4096
2017-02-05 14:20:27 +01:00

988 lines
32 KiB
C
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/*
* TV Interface for MPlayer
*
* API idea based on libvo2
*
* Copyright (C) 2001 Alex Beregszaszi
*
* Feb 19, 2002: Significant rewrites by Charles R. Henrich (henrich@msu.edu)
* to add support for audio, and bktr *BSD support.
*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mpv 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 General Public License along
* with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <strings.h>
#include <sys/time.h>
#include <assert.h>
#include <libavutil/avstring.h>
#include "config.h"
#include "common/msg.h"
#include "misc/ctype.h"
#include "options/m_option.h"
#include "options/m_config.h"
#include "options/options.h"
#include "stream.h"
#include "audio/format.h"
#include "video/img_fourcc.h"
#include "osdep/timer.h"
#include "tv.h"
#include "frequencies.h"
/* enumerating drivers (like in stream.c) */
extern const tvi_info_t tvi_info_dummy;
extern const tvi_info_t tvi_info_v4l2;
/** List of drivers in autodetection order */
static const tvi_info_t *const tvi_driver_list[]={
#if HAVE_TV_V4L2
&tvi_info_v4l2,
#endif
&tvi_info_dummy,
NULL
};
#define OPT_BASE_STRUCT tv_param_t
const struct m_sub_options tv_params_conf = {
.opts = (const m_option_t[]) {
OPT_FLAG("immediatemode", immediate, 0),
OPT_FLAG("audio", audio, 0),
OPT_INT("audiorate", audiorate, 0),
OPT_STRING("driver", driver, 0),
OPT_STRING("device", device, 0),
OPT_FLOAT("freq", freq, 0),
OPT_STRING("channel", channel, 0),
OPT_STRING("chanlist", chanlist, 0),
OPT_STRING("norm", norm, 0),
OPT_INTRANGE("automute", automute, 0, 0, 255),
#if HAVE_TV_V4L2
OPT_INT("normid", normid, 0),
#endif
OPT_INTRANGE("width", width, 0, 0, 4096),
OPT_INTRANGE("height", height, 0, 0, 4096),
OPT_INT("input", input, 0),
OPT_GENERAL(int, "outfmt", outfmt, 0, .type = &m_option_type_fourcc),
OPT_FLOAT("fps", fps, 0),
OPT_STRINGLIST("channels", channels, 0),
OPT_INTRANGE("brightness", brightness, 0, -100, 100),
OPT_INTRANGE("contrast", contrast, 0, -100, 100),
OPT_INTRANGE("hue", hue, 0, -100, 100),
OPT_INTRANGE("saturation", saturation, 0, -100, 100),
OPT_INTRANGE("gain", gain, 0, -1, 100),
#if HAVE_TV_V4L2
OPT_INTRANGE("amode", amode, 0, 0, 3),
OPT_INTRANGE("volume", volume, 0, 0, 65535),
OPT_INTRANGE("bass", bass, 0, 0, 65535),
OPT_INTRANGE("treble", treble, 0, 0, 65535),
OPT_INTRANGE("balance", balance, 0, 0, 65535),
OPT_INTRANGE("forcechan", forcechan, 0, 1, 2),
OPT_FLAG("forceaudio", force_audio, 0),
OPT_INTRANGE("buffersize", buffer_size, 0, 16, 1024),
OPT_FLAG("mjpeg", mjpeg, 0),
OPT_INTRANGE("decimation", decimation, 0, 1, 4),
OPT_INTRANGE("quality", quality, 0, 0, 100),
#if HAVE_ALSA
OPT_FLAG("alsa", alsa, 0),
#endif /* HAVE_ALSA */
#endif /* HAVE_TV_V4L2 */
OPT_STRING("adevice", adevice, 0),
OPT_INTRANGE("audioid", audio_id, 0, 0, 9),
OPT_FLAG("scan-autostart", scan, 0),
OPT_INTRANGE("scan-threshold", scan_threshold, 0, 1, 100),
OPT_FLOATRANGE("scan-period", scan_period, 0, 0.1, 2.0),
{0}
},
.size = sizeof(tv_param_t),
.defaults = &(const tv_param_t){
.chanlist = "europe-east",
.norm = "pal",
.normid = -1,
.width = -1,
.height = -1,
.outfmt = -1,
.fps = -1.0,
.audio = 1,
.immediate = 1,
.audiorate = 44100,
.amode = -1,
.volume = -1,
.bass = -1,
.treble = -1,
.balance = -1,
.forcechan = -1,
.buffer_size = -1,
.decimation = 2,
.quality = 90,
.gain = -1,
.scan_threshold = 50,
.scan_period = 0.5,
},
};
tvi_handle_t *tv_new_handle(int size, struct mp_log *log, const tvi_functions_t *functions)
{
tvi_handle_t *h = calloc(1, sizeof(*h));
if (!h)
return NULL;
h->priv = calloc(1, size);
if (!h->priv) {
free(h);
return NULL;
}
h->log = log;
h->functions = functions;
h->chanlist = -1;
h->norm = -1;
h->channel = -1;
return h;
}
void tv_free_handle(tvi_handle_t *h)
{
if (!h)
return;
free(h->priv);
free(h->scan);
free(h);
}
void tv_start_scan(tvi_handle_t *tvh, int start)
{
MP_INFO(tvh, "start scan\n");
tvh->tv_param->scan=start?1:0;
}
static int tv_set_freq_float(tvi_handle_t *tvh, float freq)
{
return tv_set_freq(tvh, freq/1000.0*16);
}
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;
//Channel scanner without tuner is useless and causes crash due to uninitialized chanlist_s
if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) != TVI_CONTROL_TRUE)
{
MP_WARN(tvh, "Channel scanner is not available without tuner\n");
tvh->tv_param->scan=0;
return;
}
scan = tvh->scan;
now=(unsigned int)mp_time_us();
if (!scan) {
scan=calloc(1,sizeof(tv_scan_t));
tvh->scan=scan;
cl = tvh->chanlist_s[scan->channel_num];
tv_set_freq_float(tvh, cl.freq);
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=tvh->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_INFO(tvh, "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 (!tvh->tv_channel_list)
tvh->tv_channel_list=tv_channel_tmp;
else {
tv_channel_add->next=tv_channel_tmp;
tvh->tv_channel_list->prev=tv_channel_tmp;
}
}else
MP_INFO(tvh, "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_INFO(tvh, "TV scan end. Found %d new channels.\n", scan->new_channels);
tv_channel_tmp=tvh->tv_channel_list;
if(tv_channel_tmp){
MP_INFO(tvh, "channels=");
while(tv_channel_tmp){
MP_INFO(tvh, "%s-%s",tv_channel_tmp->number,tv_channel_tmp->name);
if(tv_channel_tmp->next)
MP_INFO(tvh, ",");
tv_channel_tmp=tv_channel_tmp->next;
}
MP_INFO(tvh, "\n");
}
if (!tvh->tv_channel_current) tvh->tv_channel_current=tvh->tv_channel_list;
if (tvh->tv_channel_current)
tv_set_freq_float(tvh, tvh->tv_channel_current->freq);
free(tvh->scan);
tvh->scan=NULL;
}else{
cl = tvh->chanlist_s[scan->channel_num];
tv_set_freq_float(tvh, cl.freq);
MP_INFO(tvh, "Trying: %s (%.2f). \n",cl.name,1e-3*cl.freq);
}
}
static int norm_from_string(tvi_handle_t *tvh, char* norm)
{
const tvi_functions_t *funcs = tvh->functions;
char str[20];
int ret;
strncpy(str, norm, sizeof(str)-1);
str[sizeof(str)-1] = '\0';
ret=funcs->control(tvh->priv, TVI_CONTROL_SPC_GET_NORMID, str);
if (ret == TVI_CONTROL_TRUE) {
int *v = (int *)str;
return *v;
}
if(ret!=TVI_CONTROL_UNKNOWN)
{
MP_WARN(tvh, "tv.c: norm_from_string(%s): Bogus norm parameter, setting %s.\n", norm,"default");
return 0;
}
if (!strcasecmp(norm, "pal"))
return TV_NORM_PAL;
else if (!strcasecmp(norm, "ntsc"))
return TV_NORM_NTSC;
else if (!strcasecmp(norm, "secam"))
return TV_NORM_SECAM;
else if (!strcasecmp(norm, "palnc"))
return TV_NORM_PALNC;
else if (!strcasecmp(norm, "palm"))
return TV_NORM_PALM;
else if (!strcasecmp(norm, "paln"))
return TV_NORM_PALN;
else if (!strcasecmp(norm, "ntscjp"))
return TV_NORM_NTSCJP;
else {
MP_WARN(tvh, "tv.c: norm_from_string(%s): Bogus norm parameter, setting %s.\n", norm, "PAL");
return TV_NORM_PAL;
}
}
static void parse_channels(tvi_handle_t *tvh)
{
char** channels = tvh->tv_param->channels;
MP_INFO(tvh, "TV channel names detected.\n");
tvh->tv_channel_list = malloc(sizeof(tv_channels_t));
tvh->tv_channel_list->index=1;
tvh->tv_channel_list->next=NULL;
tvh->tv_channel_list->prev=NULL;
tvh->tv_channel_current = tvh->tv_channel_list;
tvh->tv_channel_current->norm = tvh->norm;
while (*channels) {
char* tmp = *(channels++);
char* sep = strchr(tmp,'-');
int i;
struct CHANLIST cl;
if (!sep) continue; // Wrong syntax, but mplayer should not crash
av_strlcpy(tvh->tv_channel_current->name, sep + 1,
sizeof(tvh->tv_channel_current->name));
sep[0] = '\0';
strncpy(tvh->tv_channel_current->number, tmp, 5);
tvh->tv_channel_current->number[4]='\0';
while ((sep=strchr(tvh->tv_channel_current->name, '_')))
sep[0] = ' ';
// if channel number is a number and larger than 1000 threat it as frequency
// tmp still contain pointer to null-terminated string with channel number here
if (atoi(tmp)>1000){
tvh->tv_channel_current->freq=atoi(tmp);
}else{
tvh->tv_channel_current->freq = 0;
for (i = 0; i < chanlists[tvh->chanlist].count; i++) {
cl = tvh->chanlist_s[i];
if (!strcasecmp(cl.name, tvh->tv_channel_current->number)) {
tvh->tv_channel_current->freq=cl.freq;
break;
}
}
}
if (tvh->tv_channel_current->freq == 0)
MP_ERR(tvh, "Couldn't find frequency for channel %s (%s)\n",
tvh->tv_channel_current->number, tvh->tv_channel_current->name);
else {
sep = strchr(tvh->tv_channel_current->name, '-');
if ( !sep ) sep = strchr(tvh->tv_channel_current->name, '+');
if ( sep ) {
i = atoi (sep+1);
if ( sep[0] == '+' ) tvh->tv_channel_current->freq += i * 100;
if ( sep[0] == '-' ) tvh->tv_channel_current->freq -= i * 100;
sep[0] = '\0';
}
sep = strchr(tvh->tv_channel_current->name, '=');
if ( sep ) {
tvh->tv_channel_current->norm = norm_from_string(tvh, sep+1);
sep[0] = '\0';
}
}
/*MP_INFO(tvh, "-- Detected channel %s - %s (%5.3f)\n",
tvh->tv_channel_current->number, tvh->tv_channel_current->name,
(float)tvh->tv_channel_current->freq/1000);*/
tvh->tv_channel_current->next = malloc(sizeof(tv_channels_t));
tvh->tv_channel_current->next->index = tvh->tv_channel_current->index + 1;
tvh->tv_channel_current->next->prev = tvh->tv_channel_current;
tvh->tv_channel_current->next->next = NULL;
tvh->tv_channel_current = tvh->tv_channel_current->next;
tvh->tv_channel_current->norm = tvh->norm;
}
if (tvh->tv_channel_current->prev)
tvh->tv_channel_current->prev->next = NULL;
free(tvh->tv_channel_current);
}
int tv_set_norm(tvi_handle_t *tvh, char* norm)
{
tvh->norm = norm_from_string(tvh, norm);
MP_VERBOSE(tvh, "Selected norm : %s\n", norm);
if (tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM, &tvh->norm) != TVI_CONTROL_TRUE) {
MP_ERR(tvh, "Error: Cannot set norm!\n");
return 0;
}
return 1;
}
static int tv_set_norm_i(tvi_handle_t *tvh, int norm)
{
tvh->norm = norm;
MP_VERBOSE(tvh, "Selected norm id: %d\n", norm);
if (tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM, &tvh->norm) != TVI_CONTROL_TRUE) {
MP_ERR(tvh, "Error: Cannot set norm!\n");
return 0;
}
return 1;
}
static void set_norm_and_freq(tvi_handle_t *tvh, tv_channels_t *chan)
{
MP_INFO(tvh, "Selected channel: %s - %s (freq: %.3f)\n",
chan->number, chan->name, chan->freq/1000.0);
tv_set_norm_i(tvh, chan->norm);
tv_set_freq_float(tvh, chan->freq);
}
int open_tv(tvi_handle_t *tvh)
{
int i;
const tvi_functions_t *funcs = tvh->functions;
static const int tv_fmt_list[] = {
MP_FOURCC_YV12,
MP_FOURCC_I420,
MP_FOURCC_UYVY,
MP_FOURCC_YUY2,
MP_FOURCC_RGB32,
MP_FOURCC_RGB24,
MP_FOURCC_RGB16,
MP_FOURCC_RGB15
};
if (funcs->control(tvh->priv, TVI_CONTROL_IS_VIDEO, 0) != TVI_CONTROL_TRUE)
{
MP_ERR(tvh, "Error: No video input present!\n");
return 0;
}
if (tvh->tv_param->outfmt == -1)
for (i = 0; i < sizeof (tv_fmt_list) / sizeof (*tv_fmt_list); i++)
{
tvh->tv_param->outfmt = tv_fmt_list[i];
if (funcs->control (tvh->priv, TVI_CONTROL_VID_SET_FORMAT,
&tvh->tv_param->outfmt) == TVI_CONTROL_TRUE)
break;
}
else
{
switch(tvh->tv_param->outfmt)
{
case MP_FOURCC_YV12:
case MP_FOURCC_I420:
case MP_FOURCC_UYVY:
case MP_FOURCC_YUY2:
case MP_FOURCC_RGB32:
case MP_FOURCC_RGB24:
case MP_FOURCC_BGR32:
case MP_FOURCC_BGR24:
case MP_FOURCC_BGR16:
case MP_FOURCC_BGR15:
break;
default:
MP_ERR(tvh, "==================================================================\n"\
" WARNING: UNTESTED OR UNKNOWN OUTPUT IMAGE FORMAT REQUESTED (0x%x)\n"\
" This may cause buggy playback or program crash! Bug reports will\n"\
" be ignored! You should try again with YV12 (which is the default\n"\
" colorspace) and read the documentation!\n"\
"==================================================================\n"
,tvh->tv_param->outfmt);
}
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_FORMAT, &tvh->tv_param->outfmt);
}
/* set some params got from cmdline */
funcs->control(tvh->priv, TVI_CONTROL_SPC_SET_INPUT, &tvh->tv_param->input);
if ((!strcmp(tvh->tv_param->driver, "v4l2") && tvh->tv_param->normid >= 0))
tv_set_norm_i(tvh, tvh->tv_param->normid);
else
tv_set_norm(tvh,tvh->tv_param->norm);
/* limits on w&h are norm-dependent -- JM */
if (tvh->tv_param->width != -1 && tvh->tv_param->height != -1) {
// first tell the driver both width and height, some drivers do not support setting them independently.
int dim[2];
dim[0] = tvh->tv_param->width; dim[1] = tvh->tv_param->height;
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_WIDTH_HEIGHT, dim);
}
/* set width */
if (tvh->tv_param->width != -1)
{
if (funcs->control(tvh->priv, TVI_CONTROL_VID_CHK_WIDTH, &tvh->tv_param->width) == TVI_CONTROL_TRUE)
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_WIDTH, &tvh->tv_param->width);
else
{
MP_ERR(tvh, "Unable to set requested width: %d\n", tvh->tv_param->width);
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_WIDTH, &tvh->tv_param->width);
}
}
/* set height */
if (tvh->tv_param->height != -1)
{
if (funcs->control(tvh->priv, TVI_CONTROL_VID_CHK_HEIGHT, &tvh->tv_param->height) == TVI_CONTROL_TRUE)
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_HEIGHT, &tvh->tv_param->height);
else
{
MP_ERR(tvh, "Unable to set requested height: %d\n", tvh->tv_param->height);
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HEIGHT, &tvh->tv_param->height);
}
}
if (funcs->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) != TVI_CONTROL_TRUE)
{
MP_WARN(tvh, "Selected input hasn't got a tuner!\n");
goto done;
}
/* select channel list */
for (i = 0; chanlists[i].name != NULL; i++)
{
if (!strcasecmp(chanlists[i].name, tvh->tv_param->chanlist))
{
tvh->chanlist = i;
tvh->chanlist_s = chanlists[i].list;
break;
}
}
if (tvh->chanlist == -1) {
MP_WARN(tvh, "Unable to find selected channel list! (%s)\n",
tvh->tv_param->chanlist);
return 0;
} else
MP_VERBOSE(tvh, "Selected channel list: %s (including %d channels)\n",
chanlists[tvh->chanlist].name, chanlists[tvh->chanlist].count);
if (tvh->tv_param->freq && tvh->tv_param->channel)
{
MP_WARN(tvh, "You can't set frequency and channel simultaneously!\n");
goto done;
}
/* Handle channel names */
if (tvh->tv_param->channels) {
parse_channels(tvh);
} else
tvh->tv_channel_last_real = malloc(5);
if (tvh->tv_channel_list) {
int channel = 0;
if (tvh->tv_param->channel)
{
if (mp_isdigit(*tvh->tv_param->channel))
/* if tvh->tv_param->channel begins with a digit interpret it as a number */
channel = atoi(tvh->tv_param->channel);
else
{
/* if tvh->tv_param->channel does not begin with a digit
set the first channel that contains tvh->tv_param->channel in its name */
tvh->tv_channel_current = tvh->tv_channel_list;
while ( tvh->tv_channel_current ) {
if ( strstr(tvh->tv_channel_current->name, tvh->tv_param->channel) )
break;
tvh->tv_channel_current = tvh->tv_channel_current->next;
}
if ( !tvh->tv_channel_current ) tvh->tv_channel_current = tvh->tv_channel_list;
}
}
else
channel = 1;
if ( channel ) {
tvh->tv_channel_current = tvh->tv_channel_list;
for (int n = 1; n < channel; n++)
if (tvh->tv_channel_current->next)
tvh->tv_channel_current = tvh->tv_channel_current->next;
}
set_norm_and_freq(tvh, tvh->tv_channel_current);
tvh->tv_channel_last = tvh->tv_channel_current;
} else {
/* we need to set frequency */
if (tvh->tv_param->freq)
{
unsigned long freq = tvh->tv_param->freq * 16;
/* set freq in MHz */
funcs->control(tvh->priv, TVI_CONTROL_TUN_SET_FREQ, &freq);
funcs->control(tvh->priv, TVI_CONTROL_TUN_GET_FREQ, &freq);
MP_VERBOSE(tvh, "Selected frequency: %lu (%.3f)\n",
freq, freq/16.0);
}
if (tvh->tv_param->channel) {
struct CHANLIST cl;
MP_VERBOSE(tvh, "Requested channel: %s\n", tvh->tv_param->channel);
for (i = 0; i < chanlists[tvh->chanlist].count; i++)
{
cl = tvh->chanlist_s[i];
// printf("count%d: name: %s, freq: %d\n",
// i, cl.name, cl.freq);
if (!strcasecmp(cl.name, tvh->tv_param->channel))
{
strcpy(tvh->tv_channel_last_real, cl.name);
tvh->channel = i;
MP_INFO(tvh, "Selected channel: %s (freq: %.3f)\n",
cl.name, cl.freq/1000.0);
tv_set_freq_float(tvh, cl.freq);
break;
}
}
}
}
/* grep frequency in chanlist */
{
unsigned long i2 = 0;
int freq;
tv_get_freq(tvh, &i2);
freq = (int) (((float)(i2/16))*1000)+250;
for (i = 0; i < chanlists[tvh->chanlist].count; i++)
{
if (tvh->chanlist_s[i].freq == freq)
{
tvh->channel = i+1;
break;
}
}
}
done:
/* also start device! */
return 1;
}
tvi_handle_t *tv_begin(tv_param_t* tv_param, struct mp_log *log)
{
int i;
tvi_handle_t* h;
if(tv_param->driver && !strcmp(tv_param->driver,"help")){
mp_info(log, "Available drivers:\n");
for(i=0;tvi_driver_list[i];i++){
mp_info(log, " %s\t%s\n",tvi_driver_list[i]->short_name,tvi_driver_list[i]->name);
}
return NULL;
}
for(i=0;tvi_driver_list[i];i++){
if (!tv_param->driver || !strcmp(tvi_driver_list[i]->short_name, tv_param->driver)){
h=tvi_driver_list[i]->tvi_init(log, tv_param);
//Requested driver initialization failed
if (!h && tv_param->driver)
return NULL;
//Driver initialization failed during autodetection process.
if (!h)
continue;
h->tv_param=tv_param;
MP_INFO(h, "Selected driver: %s\n name: %s\n", tvi_driver_list[i]->short_name,
tvi_driver_list[i]->name);
talloc_free(tv_param->driver);
tv_param->driver=talloc_strdup(NULL, tvi_driver_list[i]->short_name);
return h;
}
}
if(tv_param->driver)
mp_err(log, "No such driver: %s\n", tv_param->driver);
else
mp_err(log, "TV driver autodetection failed.\n");
return NULL;
}
int tv_uninit(tvi_handle_t *tvh)
{
int res;
if(!tvh) return 1;
if (!tvh->priv) return 1;
res=tvh->functions->uninit(tvh->priv);
if(res) {
free(tvh->priv);
tvh->priv=NULL;
}
return res;
}
int tv_set_color_options(tvi_handle_t *tvh, int opt, int value)
{
const tvi_functions_t *funcs = tvh->functions;
switch(opt)
{
case TV_COLOR_BRIGHTNESS:
return funcs->control(tvh->priv, TVI_CONTROL_VID_SET_BRIGHTNESS, &value);
case TV_COLOR_HUE:
return funcs->control(tvh->priv, TVI_CONTROL_VID_SET_HUE, &value);
case TV_COLOR_SATURATION:
return funcs->control(tvh->priv, TVI_CONTROL_VID_SET_SATURATION, &value);
case TV_COLOR_CONTRAST:
return funcs->control(tvh->priv, TVI_CONTROL_VID_SET_CONTRAST, &value);
default:
MP_WARN(tvh, "Unknown color option (%d) specified!\n", opt);
}
return TVI_CONTROL_UNKNOWN;
}
int tv_get_color_options(tvi_handle_t *tvh, int opt, int* value)
{
const tvi_functions_t *funcs = tvh->functions;
switch(opt)
{
case TV_COLOR_BRIGHTNESS:
return funcs->control(tvh->priv, TVI_CONTROL_VID_GET_BRIGHTNESS, value);
case TV_COLOR_HUE:
return funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HUE, value);
case TV_COLOR_SATURATION:
return funcs->control(tvh->priv, TVI_CONTROL_VID_GET_SATURATION, value);
case TV_COLOR_CONTRAST:
return funcs->control(tvh->priv, TVI_CONTROL_VID_GET_CONTRAST, value);
default:
MP_WARN(tvh, "Unknown color option (%d) specified!\n", opt);
}
return TVI_CONTROL_UNKNOWN;
}
int tv_get_freq(tvi_handle_t *tvh, unsigned long *freq)
{
if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) == TVI_CONTROL_TRUE)
{
tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_GET_FREQ, freq);
MP_VERBOSE(tvh, "Current frequency: %lu (%.3f)\n",
*freq, *freq/16.0);
}
return 1;
}
int tv_set_freq(tvi_handle_t *tvh, unsigned long freq)
{
if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) == TVI_CONTROL_TRUE)
{
// unsigned long freq = atof(tvh->tv_param->freq)*16;
/* set freq in MHz */
tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_FREQ, &freq);
tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_GET_FREQ, &freq);
MP_VERBOSE(tvh, "Current frequency: %lu (%.3f)\n",
freq, freq/16.0);
}
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
* \note frequency is rounded to 1/16 MHz value
* \return 1
*
*/
int tv_step_freq(tvi_handle_t* tvh, float step_interval){
unsigned long frequency = 0;
tvh->tv_param->scan=0;
tv_get_freq(tvh,&frequency);
frequency+=step_interval;
return tv_set_freq(tvh,frequency);
}
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)
{
strcpy(tvh->tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
cl = tvh->chanlist_s[--tvh->channel];
MP_INFO(tvh, "Selected channel: %s (freq: %.3f)\n",
cl.name, cl.freq/1000.0);
tv_set_freq_float(tvh, cl.freq);
}
}
if (direction == TV_CHANNEL_HIGHER)
{
if (tvh->channel+1 < chanlists[tvh->chanlist].count)
{
strcpy(tvh->tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
cl = tvh->chanlist_s[++tvh->channel];
MP_INFO(tvh, "Selected channel: %s (freq: %.3f)\n",
cl.name, cl.freq/1000.0);
tv_set_freq_float(tvh, cl.freq);
}
}
return 1;
}
int tv_step_channel(tvi_handle_t *tvh, int direction) {
tvh->tv_param->scan=0;
if (tvh->tv_channel_list) {
if (direction == TV_CHANNEL_HIGHER) {
tvh->tv_channel_last = tvh->tv_channel_current;
if (tvh->tv_channel_current->next)
tvh->tv_channel_current = tvh->tv_channel_current->next;
else
tvh->tv_channel_current = tvh->tv_channel_list;
set_norm_and_freq(tvh, tvh->tv_channel_current);
}
if (direction == TV_CHANNEL_LOWER) {
tvh->tv_channel_last = tvh->tv_channel_current;
if (tvh->tv_channel_current->prev)
tvh->tv_channel_current = tvh->tv_channel_current->prev;
else
while (tvh->tv_channel_current->next)
tvh->tv_channel_current = tvh->tv_channel_current->next;
set_norm_and_freq(tvh, tvh->tv_channel_current);
}
} else tv_step_channel_real(tvh, direction);
return 1;
}
int tv_set_channel_real(tvi_handle_t *tvh, char *channel) {
int i;
struct CHANLIST cl;
tvh->tv_param->scan=0;
strcpy(tvh->tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
for (i = 0; i < chanlists[tvh->chanlist].count; i++)
{
cl = tvh->chanlist_s[i];
// printf("count%d: name: %s, freq: %d\n",
// i, cl.name, cl.freq);
if (!strcasecmp(cl.name, channel))
{
tvh->channel = i;
MP_INFO(tvh, "Selected channel: %s (freq: %.3f)\n",
cl.name, cl.freq/1000.0);
tv_set_freq_float(tvh, cl.freq);
break;
}
}
return 1;
}
int tv_set_channel(tvi_handle_t *tvh, char *channel) {
int i, channel_int;
tvh->tv_param->scan=0;
if (tvh->tv_channel_list) {
tvh->tv_channel_last = tvh->tv_channel_current;
channel_int = atoi(channel);
tvh->tv_channel_current = tvh->tv_channel_list;
for (i = 1; i < channel_int; i++)
if (tvh->tv_channel_current->next)
tvh->tv_channel_current = tvh->tv_channel_current->next;
set_norm_and_freq(tvh, tvh->tv_channel_current);
} else tv_set_channel_real(tvh, channel);
return 1;
}
int tv_last_channel(tvi_handle_t *tvh) {
tvh->tv_param->scan=0;
if (tvh->tv_channel_list) {
tv_channels_t *tmp;
tmp = tvh->tv_channel_last;
tvh->tv_channel_last = tvh->tv_channel_current;
tvh->tv_channel_current = tmp;
set_norm_and_freq(tvh, tvh->tv_channel_current);
} else {
int i;
struct CHANLIST cl;
for (i = 0; i < chanlists[tvh->chanlist].count; i++)
{
cl = tvh->chanlist_s[i];
if (!strcasecmp(cl.name, tvh->tv_channel_last_real))
{
strcpy(tvh->tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
tvh->channel = i;
MP_INFO(tvh, "Selected channel: %s (freq: %.3f)\n",
cl.name, cl.freq/1000.0);
tv_set_freq_float(tvh, cl.freq);
break;
}
}
}
return 1;
}
int tv_step_norm(tvi_handle_t *tvh)
{
tvh->norm++;
if (tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM,
&tvh->norm) != TVI_CONTROL_TRUE) {
tvh->norm = 0;
if (tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM,
&tvh->norm) != TVI_CONTROL_TRUE) {
MP_ERR(tvh, "Error: Cannot set norm!\n");
return 0;
}
}
return 1;
}
int tv_stream_control(tvi_handle_t *tvh, int cmd, void *arg)
{
switch (cmd) {
case STREAM_CTRL_TV_SET_SCAN:
tv_start_scan(tvh, *(int *)arg);
return STREAM_OK;
case STREAM_CTRL_SET_TV_FREQ:
tv_set_freq(tvh, *(float *)arg * 16.0f);
return STREAM_OK;
case STREAM_CTRL_GET_TV_FREQ: {
unsigned long tmp = 0;
tv_get_freq(tvh, &tmp);
*(float *)arg = tmp / 16.0f;
return STREAM_OK;
}
case STREAM_CTRL_SET_TV_COLORS:
tv_set_color_options(tvh, ((int *)arg)[0], ((int *)arg)[1]);
return STREAM_OK;
case STREAM_CTRL_GET_TV_COLORS:
tv_get_color_options(tvh, ((int *)arg)[0], &((int *)arg)[1]);
return STREAM_OK;
case STREAM_CTRL_TV_SET_NORM:
tv_set_norm(tvh, (char *)arg);
return STREAM_OK;
case STREAM_CTRL_TV_STEP_NORM:
tv_step_norm(tvh);
return STREAM_OK;
case STREAM_CTRL_TV_SET_CHAN:
tv_set_channel(tvh, (char *)arg);
return STREAM_OK;
case STREAM_CTRL_TV_STEP_CHAN:
if (*(int *)arg >= 0) {
tv_step_channel(tvh, TV_CHANNEL_HIGHER);
} else {
tv_step_channel(tvh, TV_CHANNEL_LOWER);
}
return STREAM_OK;
case STREAM_CTRL_TV_LAST_CHAN:
tv_last_channel(tvh);
return STREAM_OK;
}
return STREAM_UNSUPPORTED;
}
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