tv.c

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· C语言 代码 · 共 1,059 行 · 第 1/3 页

	    case AF_FORMAT_MPEG2:
	    case AF_FORMAT_AC3:
	    default:
		mp_msg(MSGT_TV, MSGL_ERR, MSGTR_TV_UnsupportedAudioType,
		    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 = 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, MSGTR_TV_AudioFormat,
          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, tvh->tv_param->brightness);
    tv_set_color_options(tvh, TV_COLOR_HUE, tvh->tv_param->hue);
    tv_set_color_options(tvh, TV_COLOR_SATURATION, tvh->tv_param->saturation);
    tv_set_color_options(tvh, TV_COLOR_CONTRAST, tvh->tv_param->contrast);

    if(tvh->tv_param->gain!=-1)
        if(funcs->control(tvh->priv,TVI_CONTROL_VID_SET_GAIN,&tvh->tv_param->gain)!=TVI_CONTROL_TRUE)
            mp_msg(MSGT_TV,MSGL_WARN,"Unable to set gain control!\n");

    funcs->control(tvh->priv,TV_VBI_CONTROL_RESET,tvh->tv_param);

    return demuxer;
}

static void demux_close_tv(demuxer_t *demuxer)
{
    tvi_handle_t *tvh=(tvi_handle_t*)(demuxer->priv);
    if (!tvh) return;
    tvh->functions->uninit(tvh->priv);
    demuxer->priv=NULL;
}

/* 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:
	    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_msg(MSGT_TV, MSGL_WARN, MSGTR_TV_UnknownColorOption, opt);
    }
    
    return(TVI_CONTROL_UNKNOWN);
}

int tv_get_color_options(tvi_handle_t *tvh, int opt, int* value)
{
    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_msg(MSGT_TV, MSGL_WARN, MSGTR_TV_UnknownColorOption, 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_msg(MSGT_TV, MSGL_V, MSGTR_TV_CurrentFrequency,
	    *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(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_msg(MSGT_TV, MSGL_V, MSGTR_TV_CurrentFrequency,
	    freq, (float)freq/16);
    }
    tvh->functions->control(tvh->priv,TV_VBI_CONTROL_RESET,tvh->tv_param);
    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;

    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(tv_channel_last_real, tvh->chanlist_s[tvh->channel].name);
	    cl = tvh->chanlist_s[--tvh->channel];
	    mp_msg(MSGT_TV, MSGL_INFO, MSGTR_TV_SelectedChannel2,
		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, MSGTR_TV_SelectedChannel2,
		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) {
	tvh->tv_param->scan=0;
	if (tv_channel_list) {
		if (direction == TV_CHANNEL_HIGHER) {
			tv_channel_last = tv_channel_current;
			if (tv_channel_current->next)
				tv_channel_current = tv_channel_current->next;
			else
				tv_channel_current = tv_channel_list;
				tv_set_freq(tvh, (unsigned long)(((float)tv_channel_current->freq/1000)*16));
				mp_msg(MSGT_TV, MSGL_INFO, MSGTR_TV_SelectedChannel3,
			tv_channel_current->number, tv_channel_current->name, (float)tv_channel_current->freq/1000);
		}
		if (direction == TV_CHANNEL_LOWER) {
			tv_channel_last = tv_channel_current;
			if (tv_channel_current->prev)
				tv_channel_current = tv_channel_current->prev;
			else
				while (tv_channel_current->next)
					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, MSGTR_TV_SelectedChannel3,
			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;

        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++)
	{
	    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, MSGTR_TV_SelectedChannel2,
		    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;

	tvh->tv_param->scan=0;
	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, MSGTR_TV_SelectedChannel3, 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) {

	tvh->tv_param->scan=0;
	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, MSGTR_TV_SelectedChannel3, 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, MSGTR_TV_SelectedChannel2,
			    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)
{
  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_msg(MSGT_TV, MSGL_ERR, MSGTR_TV_CannotSetNorm);
      return 0;
    }
  }
    tvh->functions->control(tvh->priv,TV_VBI_CONTROL_RESET,tvh->tv_param);
    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, MSGTR_TV_SelectedNorm, tvh->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, MSGTR_TV_CannotSetNorm);
	return 0;
    }
    tvh->functions->control(tvh->priv,TV_VBI_CONTROL_RESET,tvh->tv_param);
    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
};