process_key.c

Sample code for use on smp 863x processor.

			if (dcc_info->pStcSource) {
				DCCSTCStop(dcc_info->pStcSource);
			}

			dcc_info->state = RM_STOPPED;
			dcc_info->trickmode_id = RM_NO_TRICKMODE;
			*cmd = (key==KEY_CMD_STOP) ? RM_STOP : RM_STOP_SEEK_ZERO;
			break;
			
		case KEY_CMD_SLOW_FWD:
			if (dcc_info->trick_supported) {
				if ((dcc_info->state != RM_PLAYING) && (dcc_info->state != RM_PLAYING_TRICKMODE)) {
					fprintf(stderr, "Enter Play state first...\n");
					break;
				}
				
				if (((dcc_info->pVideoSource) || (dcc_info->pAudioSource)) && (dcc_info->pStcSource)) {
					RMint32 N;
					RMuint32 M, positiveN;
					
					DCCSTCGetSpeed(dcc_info->pStcSource, &N, &M);

					if ((N == 0) || (M == 0)) {
						N = 1;
						M = 1;
					}

					positiveN = (N<0) ? (RMuint32) (-N) : (RMuint32) N;

					positiveN = 3*positiveN;
					M = 4*M;
					PGCD((RMint32 *)&positiveN, &M);
					if ((positiveN >= M) && (positiveN > MAX_SPEED)) {
						RMuint32 f = (positiveN + MAX_SPEED - 1) / MAX_SPEED;
						M = RMmax(1, M/f);
						positiveN = MAX_SPEED;
					}
					else if (M > MAX_SPEED) {
						RMuint32 f = (M + MAX_SPEED - 1) / MAX_SPEED;
						positiveN = RMmax(1, positiveN/f);
						M = MAX_SPEED;
					} 

					N = (N<0) ? (RMint32) -positiveN : (RMint32) positiveN;

					DCCSTCSetSpeed(dcc_info->pStcSource, N, M);

					fprintf(stderr, "Slow forward %ld/%ld...\n", N, M);
				}
			
				if (dcc_info->pAudioSource) {
					err = DCCStopAudioSource(dcc_info->pAudioSource);
					if (RMFAILED(err)) {
						RMDBGLOG((ENABLE, "Error stopping audio source %d\n", err));
						return err;
					}
				}
				dcc_info->state = RM_PLAYING_TRICKMODE;
				dcc_info->trickmode_id = RM_TRICKMODE_SLOW_FWD;
			}
			else {
				fprintf(stderr, "trickmodes not supported\n");
			}
			*cmd = RM_PLAY;
			break;
		case KEY_CMD_FAST_FWD:
			if (dcc_info->trick_supported) {
				if ((dcc_info->state != RM_PLAYING) && (dcc_info->state != RM_PLAYING_TRICKMODE)) {
					fprintf(stderr, "Enter Play state first...\n");
					break;
				}

				if (((dcc_info->pVideoSource) || (dcc_info->pAudioSource)) && (dcc_info->pStcSource)) {
					RMint32 N;
					RMuint32 M, positiveN;
				

					DCCSTCGetSpeed(dcc_info->pStcSource, &N, &M);

					if ((N == 0) || (M == 0)) {
						N = 1;
						M = 1;
					}

					positiveN = (N<0) ? (RMuint32) (-N) : (RMuint32) N;

					positiveN = 4*positiveN;
					M = 3*M;
					PGCD((RMint32 *)&positiveN, &M);
					if ((positiveN >= M) && (positiveN > MAX_SPEED)) {
						RMuint32 f = (positiveN + MAX_SPEED - 1) / MAX_SPEED;
						M = RMmax(1, M/f);
						positiveN = MAX_SPEED;
					}
					else if (M > MAX_SPEED) {
						RMuint32 f = (M + MAX_SPEED - 1) / MAX_SPEED;
						positiveN = RMmax(1, positiveN/f);
						M = MAX_SPEED;
					} 
				
					N = (N<0) ? (RMint32) -positiveN : (RMint32) positiveN;


					DCCSTCSetSpeed(dcc_info->pStcSource, N, M);

					fprintf(stderr, "Fast forward %ld/%ld...\n", N, M);
				}
			
				if (dcc_info->pAudioSource) {
					err = DCCStopAudioSource(dcc_info->pAudioSource);
					if (RMFAILED(err)) {
						RMDBGLOG((ENABLE, "Error stopping audio source %d\n", err));
						return err;
					}
				}
				if (dcc_info->state != RM_PLAYING_TRICKMODE) {
					dcc_info->state = RM_PLAYING_TRICKMODE;
					dcc_info->trickmode_id = RM_TRICKMODE_FAST_FWD;
				}
			}
			else {
				fprintf(stderr, "trickmodes not supported\n");
			}
			*cmd = RM_PLAY;
			break;
		case KEY_CMD_SPEED_FACTOR:
			if ((dcc_info->state != RM_PLAYING) && (dcc_info->state != RM_PLAYING_TRICKMODE)) {
				fprintf(stderr, "Enter Play state first...\n");
				break;
			}

			if ((dcc_info->pVideoSource) && (dcc_info->pStcSource)) {
				RMint32 N, speed;
				RMuint32 M;
				RMint32 direction;

				fprintf(stderr, "Speed factor [1/256] : ");

				RMTermGetUint32((RMuint32 *) &speed);
				
				direction = (speed > 0) ? 1 : -1;
				speed *= direction;
				if (speed >= 256) {
					M = 1;
					N = (speed * direction) / 256;
				}
				else {
					N = direction;
					M = 256 / speed;
				}


				DCCSTCSetSpeed(dcc_info->pStcSource, N, M);

				fprintf(stderr, "Fast forward %ld/%ld...\n", N, M);
			}

			if (dcc_info->pAudioSource) {
				err = DCCStopAudioSource(dcc_info->pAudioSource);
				if (RMFAILED(err)) {
					RMDBGLOG((ENABLE, "Error stopping audio source %d\n", err));
					return err;
				}
			}
			if (dcc_info->state != RM_PLAYING_TRICKMODE) {
				dcc_info->state = RM_PLAYING_TRICKMODE;
				dcc_info->trickmode_id = RM_TRICKMODE_FAST_FWD;
			}
			*cmd = RM_PLAY;
			break;
		case KEY_CMD_IFRAME_FWD:
			if (dcc_info->iframe_supported) {
				if ((dcc_info->state != RM_PLAYING) && (dcc_info->state != RM_PLAYING_TRICKMODE)) {
					fprintf(stderr, "Enter Play state first...\n");
					break;
				}
				fprintf(stderr, "Forward I-Frame mode. Use + to set the speed...\n");
				dcc_info->state = RM_PLAYING_TRICKMODE;
				dcc_info->trickmode_id = RM_TRICKMODE_FWD_IFRAME;
				*cmd = RM_PLAY;
			} else {
				fprintf(stderr, "iframe mode not supported...\n");
			}
			break;
		case KEY_CMD_IFRAME_BWD:
			if (dcc_info->iframe_supported) {
				if ((dcc_info->state != RM_PLAYING) && (dcc_info->state != RM_PLAYING_TRICKMODE)) {
					fprintf(stderr, "Enter Play state first...\n");
					break;
				}
				fprintf(stderr, "Backward I-Frame mode. Use + to set the speed...\n");
				dcc_info->state = RM_PLAYING_TRICKMODE;
				dcc_info->trickmode_id = RM_TRICKMODE_RWD_IFRAME;
				*cmd = RM_PLAY;
			} else {
				fprintf(stderr, "iframe mode not supported...\n");
			}
			break;	

		case KEY_CMD_SEEK:
			if (dcc_info->seek_supported) {
				fprintf(stderr, "Seeking ...\n");
				fprintf(stderr, "Seek time (s) : ");

				RMTermGetUint32(&(dcc_info->seek_time));
				
 				dcc_info->state = RM_PLAYING;
				dcc_info->trickmode_id = RM_NO_TRICKMODE;

				if (dcc_info->pStcSource)
					DCCSTCSetSpeed(dcc_info->pStcSource, 1, 1);

			} else {
				fprintf(stderr, "Seeking not supported ...\n");
			}
			*cmd = RM_SEEK;
			break;

		default:
			processed = FALSE;
		}
	}
	
	if (processed == TRUE)
		goto out_key;

	if (keyflags & SET_KEY_AUDIO) {
		processed = TRUE;
		switch (key) {
		case KEY_CMD_DUALMODE_AUDIO:
			*cmd = RM_DUALMODE_CHANGE;
			break;
		case KEY_CMD_VOLUME_PLUS:
		case KEY_CMD_VOLUME_MINUS:
			{
#if 0
				// Method to build the volume table. Volume = VOLUME_0DB * 2^(Gain/6), where Gain is expressed in dB.
#define CTN216_M	1122462048	// 2^(1/6) = 1.12246204830937298...
#define CTN216_N	1000000000
				VolumeTable[VOLUME_INDEX_0DB] = VOLUME_0DB;
				for ( dcc_info->volume = VOLUME_INDEX_0DB; dcc_info->volume >= 0; dcc_info->volume-- ) {
					VolumeTable[dcc_info->volume-1] = (((RMuint64)VolumeTable[dcc_info->volume] * CTN216_N + CTN216_M/2)/ CTN216_M);
				}
				for ( dcc_info->volume = VOLUME_INDEX_0DB; dcc_info->volume < sizeof(VolumeTable)/sizeof(RMuint32); dcc_info->volume_index++ ) {
					VolumeTable[dcc_info->volume_index+1] = (((RMuint64)VolumeTable[dcc_info->volume_index] * CTN216_M + CTN216_N/2)/ CTN216_N);
				}
				for ( dcc_info->volume_index = 0; dcc_info->volume_index < sizeof(VolumeTable)/sizeof(RMuint32); dcc_info->volume_index++ ) {
					fprintf(stdout, "0x%08lx, // %2lddB\n", VolumeTable[dcc_info->volume_index], dcc_info->volume_index-VOLUME_INDEX_0DB);
				};
#endif
				if ((key == KEY_CMD_VOLUME_PLUS) && (dcc_info->volume_index < 24))
					dcc_info->volume_index++;
				else if ((key == KEY_CMD_VOLUME_MINUS) && (dcc_info->volume_index > -VOLUME_INDEX_0DB))
					dcc_info->volume_index--;
				
				fprintf(stderr, "[0]Now volume is %ld dB = 0x%lx \n", dcc_info->volume_index, VolumeTable[VOLUME_INDEX_0DB+dcc_info->volume_index] );
				
				err = DCCSetAudioSourceVolume(dcc_info->pAudioSource, VolumeTable[VOLUME_INDEX_0DB+dcc_info->volume_index]);
				
				{
					RMuint32 volume;

					err = DCCGetAudioSourceVolume(dcc_info->pAudioSource, &volume);
					if (err == RM_OK)
						RMDBGLOG((ENABLE, "volume for all channels is = 0x%lx \n", volume));
					else
						fprintf(stderr, "error getting volume\n");
				}
			}
			break;
		case KEY_CMD_VOLUME_MUTE:
			{
				RMuint32 vol;
				
				dcc_info->mute = !dcc_info->mute;
				vol = (dcc_info->mute) ? 0 : VolumeTable[VOLUME_INDEX_0DB+dcc_info->volume_index];

				err = DCCSetAudioSourceVolume(dcc_info->pAudioSource, vol);
			}
			break;
			
		case KEY_CMD_SPEED_UP:
		case KEY_CMD_SPEED_DOWN:
			{
				if (key == KEY_CMD_SPEED_UP) ppm++;
				else ppm--;
				DCCSTCSetSpeedCleanDiv(dcc_info->pStcSource, 1000000 + ppm, 1000000);
			}
			break;
		
		default:
			processed = FALSE;
		}
	}
	
	if (processed == TRUE)
		goto out_key;

	if ((keyflags & SET_KEY_DISPLAY) && (dcc_info->disp_info != NULL) ) {
		processed = TRUE;
		switch (key) {
		case KEY_CMD_DAC_ON_OFF:
			{
				RMstatus err;
				static RMbool dac_on_off = TRUE;

				dac_on_off = !dac_on_off;

				while ((err = RUASetProperty(dcc_info->pRUA, DispDigitalOut, RMGenericPropertyID_Enable, &dac_on_off, sizeof(dac_on_off), 0)) == RM_PENDING);
				while ((err = RUASetProperty(dcc_info->pRUA, DispMainAnalogOut, RMGenericPropertyID_Enable, &dac_on_off, sizeof(dac_on_off), 0)) == RM_PENDING);
				while ((err = RUASetProperty(dcc_info->pRUA, DispComponentOut, RMGenericPropertyID_Enable, &dac_on_off, sizeof(dac_on_off), 0)) == RM_PENDING);
				while ((err = RUASetProperty(dcc_info->pRUA, DispCompositeOut, RMGenericPropertyID_Enable, &dac_on_off, sizeof(dac_on_off), 0)) == RM_PENDING);

				while ((err = RUASetProperty(dcc_info->pRUA, DispDigitalOut, RMGenericPropertyID_Validate, NULL, 0, 0)) == RM_PENDING);
				while ((err = RUASetProperty(dcc_info->pRUA, DispMainAnalogOut, RMGenericPropertyID_Validate, NULL, 0, 0)) == RM_PENDING);
				while ((err = RUASetProperty(dcc_info->pRUA, DispComponentOut, RMGenericPropertyID_Validate, NULL, 0, 0)) == RM_PENDING);
				while ((err = RUASetProperty(dcc_info->pRUA, DispCompositeOut, RMGenericPropertyID_Validate, NULL, 0, 0)) == RM_PENDING);
			}

			break;
		case KEY_CMD_CONTRAST_PLUS:
		case KEY_CMD_CONTRAST_MINUS:
			if ((key == KEY_CMD_CONTRAST_PLUS) && (dcc_info->disp_info->contrast < 240))
				dcc_info->disp_info->contrast += 16;
			else if ((key == KEY_CMD_CONTRAST_MINUS) && (dcc_info->disp_info->contrast > 15))
				dcc_info->disp_info->contrast -= 16;

			fprintf(stderr, "Now contrast is %hu\n", dcc_info->disp_info->contrast);
			
			while ((err = RUASetProperty(dcc_info->pRUA, DispDigitalOut, RMGenericPropertyID_Contrast, &(dcc_info->disp_info->contrast), sizeof(dcc_info->disp_info->contrast), 0)) == RM_PENDING);
			if (RMFAILED(err)) RMDBGLOG((ENABLE, "Cannot set the contrast on the Digital output\n"));
			while ((err = RUASetProperty(dcc_info->pRUA, DispMainAnalogOut, RMGenericPropertyID_Contrast, &(dcc_info->disp_info->contrast), sizeof(dcc_info->disp_info->contrast), 0)) == RM_PENDING);
			if (RMFAILED(err)) {