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mpv/libmpdemux/tv.c

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/*
TV Interface for MPlayer
(C) Alex Beregszaszi
API idea based on libvo2
Feb 19, 2002: Significant rewrites by Charles R. Henrich (henrich@msu.edu)
to add support for audio, and bktr *BSD support.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>
#include <sys/time.h>
#include "config.h"
int tv_param_on = 0;
#ifdef USE_TV
#include "mp_msg.h"
#include "help_mp.h"
#include "stream.h"
#include "demuxer.h"
#include "stheader.h"
#include "../libaf/af_format.h"
#include "../libvo/img_format.h"
#include "../libvo/fastmemcpy.h"
#include "tv.h"
#include "frequencies.h"
/* some default values */
int tv_param_audiorate = 44100;
int tv_param_noaudio = 0;
int tv_param_immediate = 0;
char *tv_param_freq = NULL;
char *tv_param_channel = NULL;
char *tv_param_norm = "pal";
#ifdef HAVE_TV_V4L2
int tv_param_normid = -1;
#endif
char *tv_param_chanlist = "europe-east";
char *tv_param_device = NULL;
char *tv_param_driver = "dummy";
int tv_param_width = -1;
int tv_param_height = -1;
int tv_param_input = 0; /* used in v4l and bttv */
int tv_param_outfmt = IMGFMT_YV12;
float tv_param_fps = -1.0;
char **tv_param_channels = NULL;
int tv_param_audio_id = 0;
#if defined(HAVE_TV_V4L) || defined(HAVE_TV_V4L2)
int tv_param_amode = -1;
int tv_param_volume = -1;
int tv_param_bass = -1;
int tv_param_treble = -1;
int tv_param_balance = -1;
int tv_param_forcechan = -1;
int tv_param_force_audio = 0;
int tv_param_buffer_size = -1;
int tv_param_mjpeg = 0;
int tv_param_decimation = 2;
int tv_param_quality = 90;
#if defined(HAVE_ALSA9) || defined(HAVE_ALSA1X)
int tv_param_alsa = 0;
#endif
char* tv_param_adevice = NULL;
#endif
int tv_param_brightness = 0;
int tv_param_contrast = 0;
int tv_param_hue = 0;
int tv_param_saturation = 0;
tv_channels_t *tv_channel_list;
tv_channels_t *tv_channel_current, *tv_channel_last;
char *tv_channel_last_real;
/* ================== DEMUX_TV ===================== */
/*
Return value:
0 = EOF(?) or no stream
1 = successfully read a packet
*/
/* fill demux->video and demux->audio */
static int demux_tv_fill_buffer(demuxer_t *demux, demux_stream_t *ds)
{
tvi_handle_t *tvh=(tvi_handle_t*)(demux->priv);
demux_packet_t* dp;
unsigned int len=0;
/* ================== ADD AUDIO PACKET =================== */
if (ds==demux->audio && tv_param_noaudio == 0 &&
tvh->functions->control(tvh->priv,
TVI_CONTROL_IS_AUDIO, 0) == TVI_CONTROL_TRUE)
{
len = tvh->functions->get_audio_framesize(tvh->priv);
dp=new_demux_packet(len);
dp->flags|=1; /* Keyframe */
dp->pts=tvh->functions->grab_audio_frame(tvh->priv, dp->buffer,len);
ds_add_packet(demux->audio,dp);
}
/* ================== ADD VIDEO PACKET =================== */
if (ds==demux->video && tvh->functions->control(tvh->priv,
TVI_CONTROL_IS_VIDEO, 0) == TVI_CONTROL_TRUE)
{
len = tvh->functions->get_video_framesize(tvh->priv);
dp=new_demux_packet(len);
dp->flags|=1; /* Keyframe */
dp->pts=tvh->functions->grab_video_frame(tvh->priv, dp->buffer, len);
ds_add_packet(demux->video,dp);
}
return 1;
}
static int norm_from_string(tvi_handle_t *tvh, char* norm)
{
#ifdef HAVE_TV_V4L2
if (strcmp(tv_param_driver, "v4l2") != 0) {
#endif
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_msg(MSGT_TV, MSGL_V, "tv.c: norm_from_string(%s): Bogus norm parameter, setting PAL.\n", norm);
return TV_NORM_PAL;
}
#ifdef HAVE_TV_V4L2
} else {
tvi_functions_t *funcs = tvh->functions;
char str[8];
strncpy(str, norm, sizeof(str)-1);
str[sizeof(str)-1] = '\0';
if (funcs->control(tvh->priv, TVI_CONTROL_SPC_GET_NORMID, str) != TVI_CONTROL_TRUE)
return 0;
return *(int *)str;
}
#endif
}
static int open_tv(tvi_handle_t *tvh)
{
int i;
tvi_functions_t *funcs = tvh->functions;
if (funcs->control(tvh->priv, TVI_CONTROL_IS_VIDEO, 0) != TVI_CONTROL_TRUE)
{
mp_msg(MSGT_TV, MSGL_ERR, "Error: No video input present!\n");
return 0;
}
switch(tv_param_outfmt)
{
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_UYVY:
case IMGFMT_YUY2:
case IMGFMT_RGB32:
case IMGFMT_RGB24:
case IMGFMT_BGR32:
case IMGFMT_BGR24:
case IMGFMT_BGR16:
case IMGFMT_BGR15:
break;
default:
mp_msg(MSGT_TV, MSGL_ERR, "==================================================================\n");
mp_msg(MSGT_TV, MSGL_ERR, " WARNING: UNTESTED OR UNKNOWN OUTPUT IMAGE FORMAT REQUESTED (0x%x)\n", tv_param_outfmt);
mp_msg(MSGT_TV, MSGL_ERR, " This may cause buggy playback or program crash! Bug reports will\n");
mp_msg(MSGT_TV, MSGL_ERR, " be ignored! You should try again with YV12 (which is the default\n");
mp_msg(MSGT_TV, MSGL_ERR, " colorspace) and read the documentation!\n");
mp_msg(MSGT_TV, MSGL_ERR, "==================================================================\n");
}
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_FORMAT, &tv_param_outfmt);
/* set some params got from cmdline */
funcs->control(tvh->priv, TVI_CONTROL_SPC_SET_INPUT, &tv_param_input);
#ifdef HAVE_TV_V4L2
if (!strcmp(tv_param_driver, "v4l2") && tv_param_normid >= 0) {
mp_msg(MSGT_TV, MSGL_V, "Selected norm id: %d\n", tv_param_normid);
if (funcs->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM, &tv_param_normid) != TVI_CONTROL_TRUE) {
mp_msg(MSGT_TV, MSGL_ERR, "Error: Cannot set norm!\n");
return 0;
}
} else {
#endif
/* select video norm */
tvh->norm = norm_from_string(tvh, tv_param_norm);
mp_msg(MSGT_TV, MSGL_V, "Selected norm: %s\n", tv_param_norm);
if (funcs->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM, &tvh->norm) != TVI_CONTROL_TRUE) {
mp_msg(MSGT_TV, MSGL_ERR, "Error: Cannot set norm!\n");
return 0;
}
#ifdef HAVE_TV_V4L2
}
#endif
#ifdef HAVE_TV_V4L
if ( tv_param_mjpeg )
{
/* set width to expected value */
if (tv_param_width == -1)
{
tv_param_width = 704/tv_param_decimation;
}
if (tv_param_height == -1)
{
if ( tvh->norm != TV_NORM_NTSC )
tv_param_height = 576/tv_param_decimation;
else
tv_param_height = 480/tv_param_decimation;
}
mp_msg(MSGT_TV, MSGL_INFO,
" MJP: width %d height %d\n", tv_param_width, tv_param_height);
}
#endif
/* limits on w&h are norm-dependent -- JM */
/* set width */
if (tv_param_width != -1)
{
if (funcs->control(tvh->priv, TVI_CONTROL_VID_CHK_WIDTH, &tv_param_width) == TVI_CONTROL_TRUE)
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_WIDTH, &tv_param_width);
else
{
mp_msg(MSGT_TV, MSGL_ERR, "Unable to set requested width: %d\n", tv_param_width);
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_WIDTH, &tv_param_width);
}
}
/* set height */
if (tv_param_height != -1)
{
if (funcs->control(tvh->priv, TVI_CONTROL_VID_CHK_HEIGHT, &tv_param_height) == TVI_CONTROL_TRUE)
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_HEIGHT, &tv_param_height);
else
{
mp_msg(MSGT_TV, MSGL_ERR, "Unable to set requested height: %d\n", tv_param_height);
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HEIGHT, &tv_param_height);
}
}
if (funcs->control(tvh->priv, TVI_CONTROL_IS_TUNER, 0) != TVI_CONTROL_TRUE)
{
mp_msg(MSGT_TV, MSGL_WARN, "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, tv_param_chanlist))
{
tvh->chanlist = i;
tvh->chanlist_s = chanlists[i].list;
break;
}
}
if (tvh->chanlist == -1)
mp_msg(MSGT_TV, MSGL_WARN, "Unable to find selected channel list! (%s)\n",
tv_param_chanlist);
else
mp_msg(MSGT_TV, MSGL_V, "Selected channel list: %s (including %d channels)\n",
chanlists[tvh->chanlist].name, chanlists[tvh->chanlist].count);
if (tv_param_freq && tv_param_channel)
{
mp_msg(MSGT_TV, MSGL_WARN, "You can't set frequency and channel simultaneously!\n");
goto done;
}
/* Handle channel names */
if (tv_param_channels) {
char** channels = tv_param_channels;
mp_msg(MSGT_TV, MSGL_INFO, "TV channel names detected.\n");
tv_channel_list = malloc(sizeof(tv_channels_t));
tv_channel_list->index=1;
tv_channel_list->next=NULL;
tv_channel_list->prev=NULL;
tv_channel_current = tv_channel_list;
while (*channels) {
char* tmp = *(channels++);
char* sep = strchr(tmp,'-');
int i;
struct CHANLIST cl;
if (!sep) continue; // Wrong syntax, but mplayer should not crash
strcpy(tv_channel_current->name, sep + 1);
sep[0] = '\0';
strncpy(tv_channel_current->number, tmp, 5);
while ((sep=strchr(tv_channel_current->name, '_')))
sep[0] = ' ';
tv_channel_current->freq = 0;
for (i = 0; i < chanlists[tvh->chanlist].count; i++) {
cl = tvh->chanlist_s[i];
if (!strcasecmp(cl.name, tv_channel_current->number)) {
tv_channel_current->freq=cl.freq;
break;
}
}
if (tv_channel_current->freq == 0)
mp_msg(MSGT_TV, MSGL_ERR, "Couldn't find frequency for channel %s (%s)\n",
tv_channel_current->number, tv_channel_current->name);
else {
sep = strchr(tv_channel_current->name, '-');
if ( !sep ) sep = strchr(tv_channel_current->name, '+');
if ( sep ) {
i = atoi (sep+1);
if ( sep[0] == '+' ) tv_channel_current->freq += i * 100;
if ( sep[0] == '-' ) tv_channel_current->freq -= i * 100;
sep[0] = '\0';
}
}
/*mp_msg(MSGT_TV, MSGL_INFO, "-- Detected channel %s - %s (%5.3f)\n",
tv_channel_current->number, tv_channel_current->name,
(float)tv_channel_current->freq/1000);*/
tv_channel_current->next = malloc(sizeof(tv_channels_t));
tv_channel_current->next->index = tv_channel_current->index + 1;
tv_channel_current->next->prev = tv_channel_current;
tv_channel_current->next->next = NULL;
tv_channel_current = tv_channel_current->next;
}
if (tv_channel_current->prev)
tv_channel_current->prev->next = NULL;
free(tv_channel_current);
} else
tv_channel_last_real = malloc(sizeof(char)*5);
if (tv_channel_list) {
int i;
int channel = 0;
if (tv_param_channel)
{
if (isdigit(*tv_param_channel))
/* if tv_param_channel begins with a digit interpret it as a number */
channel = atoi(tv_param_channel);
else
{
/* if tv_param_channel does not begin with a digit
set the first channel that contains tv_param_channel in its name */
tv_channel_current = tv_channel_list;
while ( tv_channel_current ) {
if ( strstr(tv_channel_current->name, tv_param_channel) )
break;
tv_channel_current = tv_channel_current->next;
}
if ( !tv_channel_current ) tv_channel_current = tv_channel_list;
}
}
else
channel = 1;
if ( channel ) {
tv_channel_current = tv_channel_list;
for (i = 1; i < channel; i++)
if (tv_channel_current->next)
tv_channel_current = tv_channel_current->next;
}
mp_msg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n", tv_channel_current->number,
tv_channel_current->name, (float)tv_channel_current->freq/1000);
tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
tv_channel_last = tv_channel_current;
} else {
/* we need to set frequency */
if (tv_param_freq)
{
unsigned long freq = atof(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_msg(MSGT_TV, MSGL_V, "Selected frequency: %lu (%.3f)\n",
freq, (float)freq/16);
}
if (tv_param_channel) {
struct CHANLIST cl;
mp_msg(MSGT_TV, MSGL_V, "Requested channel: %s\n", 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, tv_param_channel))
{
strcpy(tv_channel_last_real, cl.name);
tvh->channel = i;
mp_msg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
cl.name, (float)cl.freq/1000);
tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
break;
}
}
}
}
/* grep frequency in chanlist */
{
unsigned long i2;
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;
}
static demuxer_t* demux_open_tv(demuxer_t *demuxer)
{
tvi_handle_t *tvh;
sh_video_t *sh_video;
sh_audio_t *sh_audio = NULL;
tvi_functions_t *funcs;
if(!(tvh=tv_begin())) return NULL;
if (!tv_init(tvh)) return NULL;
if (!open_tv(tvh)){
tv_uninit(tvh);
return NULL;
}
funcs = tvh->functions;
demuxer->priv=tvh;
sh_video = new_sh_video(demuxer, 0);
/* get IMAGE FORMAT */
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_FORMAT, &sh_video->format);
// if (IMGFMT_IS_RGB(sh_video->format) || IMGFMT_IS_BGR(sh_video->format))
// sh_video->format = 0x0;
/* set FPS and FRAMETIME */
if(!sh_video->fps)
{
float tmp;
if (funcs->control(tvh->priv, TVI_CONTROL_VID_GET_FPS, &tmp) != TVI_CONTROL_TRUE)
sh_video->fps = 25.0f; /* on PAL */
else sh_video->fps = tmp;
}
if (tv_param_fps != -1.0f)
sh_video->fps = tv_param_fps;
sh_video->frametime = 1.0f/sh_video->fps;
/* If playback only mode, go to immediate mode, fail silently */
if(tv_param_immediate == 1)
{
funcs->control(tvh->priv, TVI_CONTROL_IMMEDIATE, 0);
tv_param_noaudio = 1;
}
/* disable TV audio if -nosound is present */
if (!demuxer->audio || demuxer->audio->id == -2) {
tv_param_noaudio = 1;
}
/* set width */
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_WIDTH, &sh_video->disp_w);
/* set height */
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HEIGHT, &sh_video->disp_h);
demuxer->video->sh = sh_video;
sh_video->ds = demuxer->video;
demuxer->video->id = 0;
demuxer->seekable = 0;
/* here comes audio init */
if (tv_param_noaudio == 0 && funcs->control(tvh->priv, TVI_CONTROL_IS_AUDIO, 0) == TVI_CONTROL_TRUE)
{
int audio_format;
int sh_audio_format;
char buf[128];
/* yeah, audio is present */
funcs->control(tvh->priv, TVI_CONTROL_AUD_SET_SAMPLERATE,
&tv_param_audiorate);
if (funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_FORMAT, &audio_format) != TVI_CONTROL_TRUE)
goto no_audio;
switch(audio_format)
{
case AF_FORMAT_U8:
case AF_FORMAT_S8:
case AF_FORMAT_U16_LE:
case AF_FORMAT_U16_BE:
case AF_FORMAT_S16_LE:
case AF_FORMAT_S16_BE:
case AF_FORMAT_S32_LE:
case AF_FORMAT_S32_BE:
sh_audio_format = 0x1; /* PCM */
break;
case AF_FORMAT_IMA_ADPCM:
case AF_FORMAT_MU_LAW:
case AF_FORMAT_A_LAW:
case AF_FORMAT_MPEG2:
case AF_FORMAT_AC3:
default:
mp_msg(MSGT_TV, MSGL_ERR, "Audio type '%s (%x)' unsupported!\n",
af_fmt2str(audio_format, buf, 128), audio_format);
goto no_audio;
}
sh_audio = new_sh_audio(demuxer, 0);
funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_SAMPLERATE,
&sh_audio->samplerate);
funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_SAMPLESIZE,
&sh_audio->samplesize);
funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_CHANNELS,
&sh_audio->channels);
sh_audio->format = sh_audio_format;
sh_audio->sample_format = audio_format;
sh_audio->i_bps = sh_audio->o_bps =
sh_audio->samplerate * sh_audio->samplesize *
sh_audio->channels;
// emulate WF for win32 codecs:
sh_audio->wf = (WAVEFORMATEX *)malloc(sizeof(WAVEFORMATEX));
sh_audio->wf->wFormatTag = sh_audio->format;
sh_audio->wf->nChannels = sh_audio->channels;
sh_audio->wf->wBitsPerSample = sh_audio->samplesize * 8;
sh_audio->wf->nSamplesPerSec = sh_audio->samplerate;
sh_audio->wf->nBlockAlign = sh_audio->samplesize * sh_audio->channels;
sh_audio->wf->nAvgBytesPerSec = sh_audio->i_bps;
mp_msg(MSGT_DECVIDEO, MSGL_V, " TV audio: %d channels, %d bits, %d Hz\n",
sh_audio->wf->nChannels, sh_audio->wf->wBitsPerSample,
sh_audio->wf->nSamplesPerSec);
demuxer->audio->sh = sh_audio;
sh_audio->ds = demuxer->audio;
demuxer->audio->id = 0;
}
no_audio:
if(!(funcs->start(tvh->priv))){
// start failed :(
tv_uninit(tvh);
return NULL;
}
/* set color eq */
tv_set_color_options(tvh, TV_COLOR_BRIGHTNESS, tv_param_brightness);
tv_set_color_options(tvh, TV_COLOR_HUE, tv_param_hue);
tv_set_color_options(tvh, TV_COLOR_SATURATION, tv_param_saturation);
tv_set_color_options(tvh, TV_COLOR_CONTRAST, tv_param_contrast);
return demuxer;
}
static int demux_close_tv(demuxer_t *demuxer)
{
tvi_handle_t *tvh=(tvi_handle_t*)(demuxer->priv);
return(tvh->functions->uninit(tvh->priv));
}
/* ================== STREAM_TV ===================== */
tvi_handle_t *tvi_init_dummy(char *device);
tvi_handle_t *tvi_init_v4l(char *device, char *adevice);
tvi_handle_t *tvi_init_v4l2(char *device, char *adevice);
tvi_handle_t *tvi_init_bsdbt848(char *device);
tvi_handle_t *tv_begin(void)
{
if (!strcmp(tv_param_driver, "dummy"))
return tvi_init_dummy(tv_param_device);
#ifdef HAVE_TV_V4L
if (!strcmp(tv_param_driver, "v4l"))
return tvi_init_v4l(tv_param_device, tv_param_adevice);
#endif
#ifdef HAVE_TV_V4L2
if (!strcmp(tv_param_driver, "v4l2"))
return tvi_init_v4l2(tv_param_device, tv_param_adevice);
#endif
#ifdef HAVE_TV_BSDBT848
if (!strcmp(tv_param_driver, "bsdbt848"))
return tvi_init_bsdbt848(tv_param_device);
#endif
mp_msg(MSGT_TV, MSGL_ERR, "No such driver: %s\n", tv_param_driver);
return(NULL);
}
int tv_init(tvi_handle_t *tvh)
{
mp_msg(MSGT_TV, MSGL_INFO, "Selected driver: %s\n", tvh->info->short_name);
mp_msg(MSGT_TV, MSGL_INFO, " name: %s\n", tvh->info->name);
mp_msg(MSGT_TV, MSGL_INFO, " author: %s\n", tvh->info->author);
if (tvh->info->comment)
mp_msg(MSGT_TV, MSGL_INFO, " comment: %s\n", tvh->info->comment);
return(tvh->functions->init(tvh->priv));
}
int tv_uninit(tvi_handle_t *tvh)
{
return(tvh->functions->uninit(tvh->priv));
}
/* utilities for mplayer (not mencoder!!) */
int tv_set_color_options(tvi_handle_t *tvh, int opt, int value)
{
tvi_functions_t *funcs = tvh->functions;
switch(opt)
{
case TV_COLOR_BRIGHTNESS:
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_BRIGHTNESS, &value);
break;
case TV_COLOR_HUE:
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_HUE, &value);
break;
case TV_COLOR_SATURATION:
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_SATURATION, &value);
break;
case TV_COLOR_CONTRAST:
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_CONTRAST, &value);
break;
default:
mp_msg(MSGT_TV, MSGL_WARN, "Unknown color option (%d) specified!\n", opt);
}
return(1);
}
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_msg(MSGT_TV, MSGL_V, "Current frequency: %lu (%.3f)\n",
*freq, (float)*freq/16);
}
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(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_msg(MSGT_TV, MSGL_V, "Current frequency: %lu (%.3f)\n",
freq, (float)freq/16);
}
return(1);
}
int tv_step_channel_real(tvi_handle_t *tvh, int direction)
{
struct CHANLIST cl;
if (direction == TV_CHANNEL_LOWER)
{
if (tvh->channel-1 >= 0)
{
strcpy(tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
cl = tvh->chanlist_s[--tvh->channel];
mp_msg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
cl.name, (float)cl.freq/1000);
tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
}
}
if (direction == TV_CHANNEL_HIGHER)
{
if (tvh->channel+1 < chanlists[tvh->chanlist].count)
{
strcpy(tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
cl = tvh->chanlist_s[++tvh->channel];
mp_msg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
cl.name, (float)cl.freq/1000);
tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
}
}
return(1);
}
int tv_step_channel(tvi_handle_t *tvh, int direction) {
if (tv_channel_list) {
if (direction == TV_CHANNEL_HIGHER) {
if (tv_channel_current->next) {
tv_channel_last = tv_channel_current;
tv_channel_current = tv_channel_current->next;
tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
mp_msg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n",
tv_channel_current->number, tv_channel_current->name, (float)tv_channel_current->freq/1000);
}
}
if (direction == TV_CHANNEL_LOWER) {
if (tv_channel_current->prev) {
tv_channel_last = tv_channel_current;
tv_channel_current = tv_channel_current->prev;
tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
mp_msg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n",
tv_channel_current->number, tv_channel_current->name, (float)tv_channel_current->freq/1000);
}
}
} 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;
strcpy(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_msg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
cl.name, (float)cl.freq/1000);
tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
break;
}
}
return(1);
}
int tv_set_channel(tvi_handle_t *tvh, char *channel) {
int i, channel_int;
if (tv_channel_list) {
tv_channel_last = tv_channel_current;
channel_int = atoi(channel);
tv_channel_current = tv_channel_list;
for (i = 1; i < channel_int; i++)
if (tv_channel_current->next)
tv_channel_current = tv_channel_current->next;
mp_msg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n", tv_channel_current->number,
tv_channel_current->name, (float)tv_channel_current->freq/1000);
tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
} else tv_set_channel_real(tvh, channel);
return(1);
}
int tv_last_channel(tvi_handle_t *tvh) {
if (tv_channel_list) {
tv_channels_t *tmp;
tmp = tv_channel_last;
tv_channel_last = tv_channel_current;
tv_channel_current = tmp;
mp_msg(MSGT_TV, MSGL_INFO, "Selected channel: %s - %s (freq: %.3f)\n", tv_channel_current->number,
tv_channel_current->name, (float)tv_channel_current->freq/1000);
tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
} else {
int i;
struct CHANLIST cl;
for (i = 0; i < chanlists[tvh->chanlist].count; i++)
{
cl = tvh->chanlist_s[i];
if (!strcasecmp(cl.name, tv_channel_last_real))
{
strcpy(tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
tvh->channel = i;
mp_msg(MSGT_TV, MSGL_INFO, "Selected channel: %s (freq: %.3f)\n",
cl.name, (float)cl.freq/1000);
tv_set_freq(tvh, (unsigned long)(((float)cl.freq/1000)*16));
break;
}
}
}
return(1);
}
int tv_step_norm(tvi_handle_t *tvh)
{
return(1);
}
int tv_step_chanlist(tvi_handle_t *tvh)
{
return(1);
}
int tv_set_norm(tvi_handle_t *tvh, char* norm)
{
tvh->norm = norm_from_string(tvh, norm);
mp_msg(MSGT_TV, MSGL_V, "Selected norm: %s\n", tv_param_norm);
if (tvh->functions->control(tvh->priv, TVI_CONTROL_TUN_SET_NORM, &tvh->norm) != TVI_CONTROL_TRUE) {
mp_msg(MSGT_TV, MSGL_ERR, "Error: Cannot set norm!\n");
return 0;
}
return(1);
}
demuxer_desc_t demuxer_desc_tv = {
"Tv card demuxer",
"tv",
"TV",
"Alex Beregszaszi, Charles R. Henrich",
"?",
DEMUXER_TYPE_TV,
0, // no autodetect
NULL,
demux_tv_fill_buffer,
demux_open_tv,
demux_close_tv,
NULL,
NULL
};
#endif /* USE_TV */
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