aboutsummaryrefslogtreecommitdiffhomepage
path: root/libmpdemux/tv.c
blob: 166cc1adb7aa524b138051aec5793f92b0663632 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
/*
 TV Interface for MPlayer
 
 (C) Alex Beregszaszi <alex@naxine.org>
 
 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 <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 "../libao2/afmt.h"
#include "../libao2/audio_out.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";
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 */
char *tv_param_outfmt = "yv12";
float tv_param_fps = -1.0;
char **tv_param_channels = NULL;
#ifdef HAVE_TV_V4L
int tv_param_amode = -1;
int tv_param_audio_id = 0;
int tv_param_volume = 60000;
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;
#ifdef HAVE_ALSA9
int tv_param_alsa = 0;
#endif
char* tv_param_adevice = NULL;
#endif

/* ================== DEMUX_TV ===================== */
/*
  Return value:
    0 = EOF(?) or no stream
    1 = successfully read a packet
*/
/* fill demux->video and demux->audio */

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;
    u_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->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->pts=tvh->functions->grab_video_frame(tvh->priv, dp->buffer, len);
   		ds_add_packet(demux->video,dp);
	 }

    return 1;
}

 /* forward declarations */
int tv_set_freq(tvi_handle_t *tvh, unsigned long freq);
int tv_get_freq(tvi_handle_t *tvh, unsigned long *freq);

static int open_tv(tvi_handle_t *tvh)
{
    int i;
    tvi_functions_t *funcs = tvh->functions;
    int picture_format = 0;

    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;
    }

    if (!strcasecmp(tv_param_outfmt, "yv12"))
	picture_format = IMGFMT_YV12;
    else if (!strcasecmp(tv_param_outfmt, "i420"))
	picture_format = IMGFMT_I420;
    else if (!strcasecmp(tv_param_outfmt, "uyvy"))
	picture_format = IMGFMT_UYVY;
    else if (!strcasecmp(tv_param_outfmt, "yuy2"))
	picture_format = IMGFMT_YUY2;
    else if (!strcasecmp(tv_param_outfmt, "rgb32"))
	picture_format = IMGFMT_RGB32;
    else if (!strcasecmp(tv_param_outfmt, "rgb24"))
	picture_format = IMGFMT_RGB24;
    else if (!strcasecmp(tv_param_outfmt, "rgb16"))
	picture_format = IMGFMT_RGB16;
    else if (!strcasecmp(tv_param_outfmt, "rgb15"))
	picture_format = IMGFMT_RGB15;
    else
    {
	mp_msg(MSGT_TV, MSGL_ERR, "Unknown format given: %s\n", tv_param_outfmt);
	mp_msg(MSGT_TV, MSGL_V, "Using default: Planar YV12\n");
	picture_format = IMGFMT_YV12;
    }
    funcs->control(tvh->priv, TVI_CONTROL_VID_SET_FORMAT, &picture_format);

    /* set some params got from cmdline */
    funcs->control(tvh->priv, TVI_CONTROL_SPC_SET_INPUT, &tv_param_input);

    /* select video norm */
    if (!strcasecmp(tv_param_norm, "pal"))
	tvh->norm = TV_NORM_PAL;
    else if (!strcasecmp(tv_param_norm, "ntsc"))
	tvh->norm = TV_NORM_NTSC;
    else if (!strcasecmp(tv_param_norm, "secam"))
	tvh->norm = TV_NORM_SECAM;
    else if (!strcasecmp(tv_param_norm, "palnc"))
	tvh->norm = TV_NORM_PALNC;
    else if (!strcasecmp(tv_param_norm, "palm"))
	tvh->norm = TV_NORM_PALM;
    else if (!strcasecmp(tv_param_norm, "paln"))
	tvh->norm = TV_NORM_PALN;
    else if (!strcasecmp(tv_param_norm, "ntscjp"))
	tvh->norm = TV_NORM_NTSCJP;
    else {
	mp_msg(MSGT_TV, MSGL_V, "Bogus norm parameter, setting PAL.\n");
	tvh->norm = TV_NORM_PAL;
    }

    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;
    }

    /* 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 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 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 simultanly!\n");
	goto done;
    }

    /* Handle channels names */
    if (tv_param_channels) {
	mp_msg(MSGT_TV, MSGL_INFO, "TV Channels 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 (*tv_param_channels) {
		char* tmp = *(tv_param_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);

		/*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;
	if (tv_param_channel)
		channel = atoi(tv_param_channel);
	else
		channel = 1;

	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;
}

int 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 0;
    if (!tv_init(tvh)) return 0;
    if (!open_tv(tvh)){
	tv_uninit(tvh);
	return 0;
    }
    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)
    {
        int 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;

	/* 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 AFMT_U8:
	    case AFMT_S8:
	    case AFMT_U16_LE:
	    case AFMT_U16_BE:
	    case AFMT_S16_LE:
	    case AFMT_S16_BE:
	    case AFMT_S32_LE:
	    case AFMT_S32_BE:
		sh_audio_format = 0x1; /* PCM */
		break;
	    case AFMT_IMA_ADPCM:
	    case AFMT_MU_LAW:
	    case AFMT_A_LAW:
	    case AFMT_MPEG:
	    case AFMT_AC3:
	    default:
		mp_msg(MSGT_TV, MSGL_ERR, "Audio type '%s (%x)' unsupported!\n",
		    audio_out_format_name(audio_format), 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 0;
    }
    return 1;
}

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_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_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);
}
#endif /* USE_TV */