mpeg4_nodes.c

一个用于智能手机的多媒体库适合S60 WinCE的跨平台开发库

		info->far_ptr = & ((M_AudioBuffer *) node)->startTime;
		return GF_OK;
	case 3:
		info->name = "stopTime";
		info->eventType = GF_SG_EVENT_EXPOSED_FIELD;
		info->fieldType = GF_SG_VRML_SFTIME;
		info->far_ptr = & ((M_AudioBuffer *) node)->stopTime;
		return GF_OK;
	case 4:
		info->name = "children";
		info->eventType = GF_SG_EVENT_EXPOSED_FIELD;
		info->fieldType = GF_SG_VRML_MFNODE;
		info->NDTtype = NDT_SFAudioNode;
		info->far_ptr = & ((M_AudioBuffer *)node)->children;
		return GF_OK;
	case 5:
		info->name = "numChan";
		info->eventType = GF_SG_EVENT_EXPOSED_FIELD;
		info->fieldType = GF_SG_VRML_SFINT32;
		info->far_ptr = & ((M_AudioBuffer *) node)->numChan;
		return GF_OK;
	case 6:
		info->name = "phaseGroup";
		info->eventType = GF_SG_EVENT_EXPOSED_FIELD;
		info->fieldType = GF_SG_VRML_MFINT32;
		info->far_ptr = & ((M_AudioBuffer *) node)->phaseGroup;
		return GF_OK;
	case 7:
		info->name = "length";
		info->eventType = GF_SG_EVENT_EXPOSED_FIELD;
		info->fieldType = GF_SG_VRML_SFFLOAT;
		info->far_ptr = & ((M_AudioBuffer *) node)->length;
		return GF_OK;
	case 8:
		info->name = "duration_changed";
		info->eventType = GF_SG_EVENT_OUT;
		info->fieldType = GF_SG_VRML_SFTIME;
		info->far_ptr = & ((M_AudioBuffer *) node)->duration_changed;
		return GF_OK;
	case 9:
		info->name = "isActive";
		info->eventType = GF_SG_EVENT_OUT;
		info->fieldType = GF_SG_VRML_SFBOOL;
		info->far_ptr = & ((M_AudioBuffer *) node)->isActive;
		return GF_OK;
	default:
		return GF_BAD_PARAM;
	}
}


static s32 AudioBuffer_get_field_index_by_name(char *name)
{
	if (!strcmp("loop", name)) return 0;
	if (!strcmp("pitch", name)) return 1;
	if (!strcmp("startTime", name)) return 2;
	if (!strcmp("stopTime", name)) return 3;
	if (!strcmp("children", name)) return 4;
	if (!strcmp("numChan", name)) return 5;
	if (!strcmp("phaseGroup", name)) return 6;
	if (!strcmp("length", name)) return 7;
	if (!strcmp("duration_changed", name)) return 8;
	if (!strcmp("isActive", name)) return 9;
	return -1;
	}
static Bool AudioBuffer_get_aq_info(GF_Node *n, u32 FieldIndex, u8 *QType, u8 *AType, Fixed *b_min, Fixed *b_max, u32 *QT13_bits)
{
	switch (FieldIndex) {
	case 1:
		*AType = 7;
		*QType = 0;
		*b_min = FLT2FIX(0);
		*b_max = FIX_MAX;
		return 1;
	case 2:
		*AType = 0;
		*QType = 0;
		*b_min = FLT2FIX(0);
		*b_max = FIX_MAX;
		return 1;
	case 3:
		*AType = 0;
		*QType = 0;
		*b_min = FLT2FIX(0);
		*b_max = FIX_MAX;
		return 1;
	case 5:
		*AType = 0;
		*QType = 13;
		*QT13_bits = 8;
		*b_min = FLT2FIX(0);
		*b_max = FLT2FIX(255);
		return 1;
	case 7:
		*AType = 0;
		*QType = 0;
		*b_min = FLT2FIX(0);
		*b_max = FIX_MAX;
		return 1;
	default:
		return 0;
	}
}



GF_Node *AudioBuffer_Create()
{
	M_AudioBuffer *p;
	GF_SAFEALLOC(p, M_AudioBuffer);
	if(!p) return NULL;
	gf_node_setup((GF_Node *)p, TAG_MPEG4_AudioBuffer);

#ifdef GF_NODE_USE_POINTERS
	((GF_Node *)p)->sgprivate->name = "AudioBuffer";
	((GF_Node *)p)->sgprivate->node_del = AudioBuffer_Del;
	((GF_Node *)p)->sgprivate->get_field_count = AudioBuffer_get_field_count;
	((GF_Node *)p)->sgprivate->get_field = AudioBuffer_get_field;
#endif


	/*default field values*/
	p->pitch = FLT2FIX(1);
	p->startTime = 0;
	p->stopTime = 0;
	p->numChan = 1;
	p->phaseGroup.vals = (SFInt32*)malloc(sizeof(SFInt32)*1);
	p->phaseGroup.count = 1;
	p->phaseGroup.vals[0] = 1;
	p->length = FLT2FIX(0.0);
	return (GF_Node *)p;
}


/*
	AudioClip Node deletion
*/

static void AudioClip_Del(GF_Node *node)
{
	M_AudioClip *p = (M_AudioClip *) node;
	gf_sg_sfstring_del(p->description);
	gf_sg_mfurl_del(p->url);
	gf_node_free((GF_Node *) p);
}

static const u16 AudioClip_Def2All[] = { 0, 1, 2, 3, 4, 5};
static const u16 AudioClip_In2All[] = { 0, 1, 2, 3, 4, 5};
static const u16 AudioClip_Out2All[] = { 0, 1, 2, 3, 4, 5, 6, 7};
static const u16 AudioClip_Dyn2All[] = { 2};

static u32 AudioClip_get_field_count(GF_Node *node, u8 IndexMode)
{
	switch(IndexMode) {
	case GF_SG_FIELD_CODING_IN: return 6;
	case GF_SG_FIELD_CODING_DEF: return 6;
	case GF_SG_FIELD_CODING_OUT: return 8;
	case GF_SG_FIELD_CODING_DYN: return 1;
	default:
		return 8;
	}
}

static GF_Err AudioClip_get_field_index(GF_Node *n, u32 inField, u8 IndexMode, u32 *allField)
{
	switch(IndexMode) {
	case GF_SG_FIELD_CODING_IN:
		*allField = AudioClip_In2All[inField];
		return GF_OK;
	case GF_SG_FIELD_CODING_DEF:
		*allField = AudioClip_Def2All[inField];
		return GF_OK;
	case GF_SG_FIELD_CODING_OUT:
		*allField = AudioClip_Out2All[inField];
		return GF_OK;
	case GF_SG_FIELD_CODING_DYN:
		*allField = AudioClip_Dyn2All[inField];
		return GF_OK;
	default:
		return GF_BAD_PARAM;
	}
}
static GF_Err AudioClip_get_field(GF_Node *node, GF_FieldInfo *info)
{
	switch (info->fieldIndex) {
	case 0:
		info->name = "description";
		info->eventType = GF_SG_EVENT_EXPOSED_FIELD;
		info->fieldType = GF_SG_VRML_SFSTRING;
		info->far_ptr = & ((M_AudioClip *) node)->description;
		return GF_OK;
	case 1:
		info->name = "loop";
		info->eventType = GF_SG_EVENT_EXPOSED_FIELD;
		info->fieldType = GF_SG_VRML_SFBOOL;
		info->far_ptr = & ((M_AudioClip *) node)->loop;
		return GF_OK;
	case 2:
		info->name = "pitch";
		info->eventType = GF_SG_EVENT_EXPOSED_FIELD;
		info->fieldType = GF_SG_VRML_SFFLOAT;
		info->far_ptr = & ((M_AudioClip *) node)->pitch;
		return GF_OK;
	case 3:
		info->name = "startTime";
		info->eventType = GF_SG_EVENT_EXPOSED_FIELD;
		info->fieldType = GF_SG_VRML_SFTIME;
		info->far_ptr = & ((M_AudioClip *) node)->startTime;
		return GF_OK;
	case 4:
		info->name = "stopTime";
		info->eventType = GF_SG_EVENT_EXPOSED_FIELD;
		info->fieldType = GF_SG_VRML_SFTIME;
		info->far_ptr = & ((M_AudioClip *) node)->stopTime;
		return GF_OK;
	case 5:
		info->name = "url";
		info->eventType = GF_SG_EVENT_EXPOSED_FIELD;
		info->fieldType = GF_SG_VRML_MFURL;
		info->far_ptr = & ((M_AudioClip *) node)->url;
		return GF_OK;
	case 6:
		info->name = "duration_changed";
		info->eventType = GF_SG_EVENT_OUT;
		info->fieldType = GF_SG_VRML_SFTIME;
		info->far_ptr = & ((M_AudioClip *) node)->duration_changed;
		return GF_OK;
	case 7:
		info->name = "isActive";
		info->eventType = GF_SG_EVENT_OUT;
		info->fieldType = GF_SG_VRML_SFBOOL;
		info->far_ptr = & ((M_AudioClip *) node)->isActive;
		return GF_OK;
	default:
		return GF_BAD_PARAM;
	}
}


static s32 AudioClip_get_field_index_by_name(char *name)
{
	if (!strcmp("description", name)) return 0;
	if (!strcmp("loop", name)) return 1;
	if (!strcmp("pitch", name)) return 2;
	if (!strcmp("startTime", name)) return 3;
	if (!strcmp("stopTime", name)) return 4;
	if (!strcmp("url", name)) return 5;
	if (!strcmp("duration_changed", name)) return 6;
	if (!strcmp("isActive", name)) return 7;
	return -1;
	}
static Bool AudioClip_get_aq_info(GF_Node *n, u32 FieldIndex, u8 *QType, u8 *AType, Fixed *b_min, Fixed *b_max, u32 *QT13_bits)
{
	switch (FieldIndex) {
	case 2:
		*AType = 7;
		*QType = 0;
		*b_min = FLT2FIX(0);
		*b_max = FIX_MAX;
		return 1;
	default:
		return 0;
	}
}



GF_Node *AudioClip_Create()
{
	M_AudioClip *p;
	GF_SAFEALLOC(p, M_AudioClip);
	if(!p) return NULL;
	gf_node_setup((GF_Node *)p, TAG_MPEG4_AudioClip);

#ifdef GF_NODE_USE_POINTERS
	((GF_Node *)p)->sgprivate->name = "AudioClip";
	((GF_Node *)p)->sgprivate->node_del = AudioClip_Del;
	((GF_Node *)p)->sgprivate->get_field_count = AudioClip_get_field_count;
	((GF_Node *)p)->sgprivate->get_field = AudioClip_get_field;
#endif


	/*default field values*/
	p->pitch = FLT2FIX(1.0);
	p->startTime = 0;
	p->stopTime = 0;
	return (GF_Node *)p;
}


/*
	AudioDelay Node deletion
*/

static void AudioDelay_Del(GF_Node *node)
{
	M_AudioDelay *p = (M_AudioDelay *) node;
	gf_sg_vrml_parent_destroy((GF_Node *) p);	
	gf_sg_mfint32_del(p->phaseGroup);
	gf_node_free((GF_Node *) p);
}

static const u16 AudioDelay_Def2All[] = { 2, 3, 4, 5};
static const u16 AudioDelay_In2All[] = { 0, 1, 2, 3};
static const u16 AudioDelay_Out2All[] = { 2, 3};

static u32 AudioDelay_get_field_count(GF_Node *node, u8 IndexMode)
{
	switch(IndexMode) {
	case GF_SG_FIELD_CODING_IN: return 4;
	case GF_SG_FIELD_CODING_DEF: return 4;
	case GF_SG_FIELD_CODING_OUT: return 2;
	case GF_SG_FIELD_CODING_DYN: return 0;
	default:
		return 6;
	}
}

static GF_Err AudioDelay_get_field_index(GF_Node *n, u32 inField, u8 IndexMode, u32 *allField)
{
	switch(IndexMode) {
	case GF_SG_FIELD_CODING_IN:
		*allField = AudioDelay_In2All[inField];
		return GF_OK;
	case GF_SG_FIELD_CODING_DEF:
		*allField = AudioDelay_Def2All[inField];
		return GF_OK;
	case GF_SG_FIELD_CODING_OUT:
		*allField = AudioDelay_Out2All[inField];
		return GF_OK;
	default:
		return GF_BAD_PARAM;
	}
}
static GF_Err AudioDelay_get_field(GF_Node *node, GF_FieldInfo *info)
{
	switch (info->fieldIndex) {
	case 0:
		info->name = "addChildren";
		info->eventType = GF_SG_EVENT_IN;
		info->on_event_in = ((M_AudioDelay *)node)->on_addChildren;
		info->fieldType = GF_SG_VRML_MFNODE;
		info->NDTtype = NDT_SFAudioNode;
		info->far_ptr = & ((M_AudioDelay *)node)->addChildren;
		return GF_OK;
	case 1:
		info->name = "removeChildren";
		info->eventType = GF_SG_EVENT_IN;
		info->on_event_in = ((M_AudioDelay *)node)->on_removeChildren;
		info->fieldType = GF_SG_VRML_MFNODE;
		info->NDTtype = NDT_SFAudioNode;
		info->far_ptr = & ((M_AudioDelay *)node)->removeChildren;
		return GF_OK;
	case 2:
		info->name = "children";
		info->eventType = GF_SG_EVENT_EXPOSED_FIELD;
		info->fieldType = GF_SG_VRML_MFNODE;
		info->NDTtype = NDT_SFAudioNode;
		info->far_ptr = & ((M_AudioDelay *)node)->children;
		return GF_OK;
	case 3:
		info->name = "delay";
		info->eventType = GF_SG_EVENT_EXPOSED_FIELD;
		info->fieldType = GF_SG_VRML_SFTIME;
		info->far_ptr = & ((M_AudioDelay *) node)->delay;
		return GF_OK;
	case 4:
		info->name = "numChan";
		info->eventType = GF_SG_EVENT_FIELD;
		info->fieldType = GF_SG_VRML_SFINT32;
		info->far_ptr = & ((M_AudioDelay *) node)->numChan;
		return GF_OK;
	case 5:
		info->name = "phaseGroup";
		info->eventType = GF_SG_EVENT_FIELD;
		info->fieldType = GF_SG_VRML_MFINT32;
		info->far_ptr = & ((M_AudioDelay *) node)->phaseGroup;
		return GF_OK;
	default:
		return GF_BAD_PARAM;
	}
}


static s32 AudioDelay_get_field_index_by_name(char *name)
{
	if (!strcmp("addChildren", name)) return 0;
	if (!strcmp("removeChildren", name)) return 1;
	if (!strcmp("children", name)) return 2;
	if (!strcmp("delay", name)) return 3;
	if (!strcmp("numChan", name)) return 4;
	if (!strcmp("phaseGroup", name)) return 5;
	return -1;
	}
static Bool AudioDelay_get_aq_info(GF_Node *n, u32 FieldIndex, u8 *QType, u8 *AType, Fixed *b_min, Fixed *b_max, u32 *QT13_bits)
{
	switch (FieldIndex) {
	case 4:
		*AType = 0;
		*QType = 13;
		*QT13_bits = 8;
		*b_min = FLT2FIX(0);
		*b_max = FLT2FIX(255);
		return 1;
	case 5:
		*AType = 0;
		*QType = 13;
		*QT13_bits = 8;
		*b_min = FLT2FIX(0);
		*b_max = FLT2FIX(255);
		return 1;
	default:
		return 0;
	}
}



GF_Node *AudioDelay_Create()
{
	M_AudioDelay *p;
	GF_SAFEALLOC(p, M_AudioDelay);
	if(!p) return NULL;
	gf_node_setup((GF_Node *)p, TAG_MPEG4_AudioDelay);
	gf_sg_vrml_parent_setup((GF_Node *) p);

#ifdef GF_NODE_USE_POINTERS
	((GF_Node *)p)->sgprivate->name = "AudioDelay";
	((GF_Node *)p)->sgprivate->node_del = AudioDelay_Del;
	((GF_Node *)p)->sgprivate->get_field_count = AudioDelay_get_field_count;
	((GF_Node *)p)->sgprivate->get_field = AudioDelay_get_field;
#endif


	/*default field values*/
	p->delay = 0;
	p->numChan = 1;
	return (GF_Node *)p;
}


/*
	AudioFX Node deletion
*/

static void AudioFX_Del(GF_Node *node)
{
	M_AudioFX *p = (M_AudioFX *) node;
	gf_sg_vrml_parent_destroy((GF_Node *) p);	
	gf_sg_sfstring_del(p->orch);
	gf_sg_sfstring_del(p->score);
	gf_sg_mffloat_del(p->params);
	gf_sg_mfint32_del(p->phaseGroup);
	gf_node_free((GF_Node *) p);
}

static const u16 AudioFX_Def2All[] = { 2, 3, 4, 5, 6, 7};
static const u16 AudioFX_In2All[] = { 0, 1, 2, 3, 4, 5};
static const u16 AudioFX_Out2All[] = { 2, 3, 4, 5};
static const u16 AudioFX_Dyn2All[] = { 5};

static u32 AudioFX_get_field_count(GF_Node *node, u8 IndexMode)
{
	switch(IndexMode) {
	case GF_SG_FIELD_CODING_IN: return 6;
	case GF_SG_FIELD_CODING_DEF: return 6;
	case GF_SG_FIELD_CODING_OUT: return 4;
	case GF_SG_FIELD_CODING_DYN: return 1;
	default:
		return 8;
	}
}

static GF_Err AudioFX_get_field_index(GF_Node *n, u32 inField, u8 IndexMode, u32 *allField)
{
	switch(IndexMode) {
	case GF_SG_FIELD_CODING_IN:
		*allField = AudioFX_In2All[inField];
		return GF_OK;
	case GF_SG_FIELD_CODING_DEF:
		*allField = AudioFX_Def2All[inField];
		return GF_OK;
	case GF_SG_FIELD_CODING_OUT:
		*allField = AudioFX_Out2All[inField];
		return GF_OK;
	case GF_SG_FIELD_CODING_DYN:
		*allField = AudioFX_Dyn2All[inField];
		return GF_OK;
	default:
		return GF_BAD_PARAM;
	}
}
static GF_Err AudioFX_get_field(GF_Node *node, GF_FieldInfo *info)
{
	switch (info->fieldIndex) {
	case 0:
		info->name = "addChildren";
		info->eventType = GF_SG_EVENT_IN;
		info->on_event_in = ((M_AudioFX *)node)->on_addChildren;
		info->fieldType = GF_SG_VRML_MFNODE;
		info->NDTtype = NDT_SFAudioNode;
		info->far_ptr = & ((M_AudioFX *)node)->addChildren;
		return GF_OK;
	case 1:
		info->name = "removeChildren";
		info->eventType = GF_SG_EVENT_IN;
		info->on_event_in = ((M_AudioFX *)node)->on_removeChildren;
		info->fieldType = GF_SG_VRML_MFNODE;