GF_Err gf_bifs_dec_sf_field(GF_BifsDecoder * codec, GF_BitStream *bs, GF_Node *node, GF_FieldInfo *field, Bool is_mem_com)
{
GF_Err e;
GF_Node *new_node;
u32 size, length, w, h, i;
char *buffer;
//blindly call unquantize. return is OK, error or GF_EOS
if (codec->ActiveQP && node) {
e = gf_bifs_dec_unquant_field(codec, bs, node, field);
if (e != GF_EOS) return e;
}
//not quantized, use normal scheme
switch (field->fieldType) {
case GF_SG_VRML_SFBOOL:
* ((SFBool *) field->far_ptr) = (SFBool) gf_bs_read_int(bs, 1);
break;
case GF_SG_VRML_SFCOLOR:
((SFColor *)field->far_ptr)->red = BD_ReadSFFloat(codec, bs);;
((SFColor *)field->far_ptr)->green = BD_ReadSFFloat(codec, bs);
((SFColor *)field->far_ptr)->blue = BD_ReadSFFloat(codec, bs);
break;
case GF_SG_VRML_SFFLOAT:
*((SFFloat *)field->far_ptr) = BD_ReadSFFloat(codec, bs);
break;
case GF_SG_VRML_SFINT32:
*((SFInt32 *)field->far_ptr) = (s32) gf_bs_read_int(bs, 32);
break;
case GF_SG_VRML_SFTIME:
*((SFTime *)field->far_ptr) = gf_bs_read_double(bs);
if (node) BD_CheckSFTimeOffset(codec, node, field);
break;
case GF_SG_VRML_SFVEC2F:
((SFVec2f *)field->far_ptr)->x = BD_ReadSFFloat(codec, bs);
((SFVec2f *)field->far_ptr)->y = BD_ReadSFFloat(codec, bs);
break;
case GF_SG_VRML_SFVEC3F:
((SFVec3f *)field->far_ptr)->x = BD_ReadSFFloat(codec, bs);
((SFVec3f *)field->far_ptr)->y = BD_ReadSFFloat(codec, bs);
((SFVec3f *)field->far_ptr)->z = BD_ReadSFFloat(codec, bs);
break;
case GF_SG_VRML_SFROTATION:
((SFRotation *)field->far_ptr)->x = BD_ReadSFFloat(codec, bs);
((SFRotation *)field->far_ptr)->y = BD_ReadSFFloat(codec, bs);
((SFRotation *)field->far_ptr)->z = BD_ReadSFFloat(codec, bs);
((SFRotation *)field->far_ptr)->q = BD_ReadSFFloat(codec, bs);
break;
case GF_SG_VRML_SFSTRING:
size = gf_bs_read_int(bs, 5);
length = gf_bs_read_int(bs, size);
if (gf_bs_available(bs) < length) return GF_NON_COMPLIANT_BITSTREAM;
if (node && (node->sgprivate->tag==TAG_MPEG4_CacheTexture) && (field->fieldIndex<=2)) {
M_CacheTexture *ct = (M_CacheTexture *) node;
ct->data_len = length;
if (ct->data) gf_free(ct->data);
ct->data = gf_malloc(sizeof(char)*length);
gf_bs_read_data(bs, (char*)ct->data, length);
} else if (node && (node->sgprivate->tag==TAG_MPEG4_BitWrapper) ) {
M_BitWrapper *bw = (M_BitWrapper*) node;
if (bw->buffer.buffer) gf_free(bw->buffer.buffer);
bw->buffer_len = length;
bw->buffer.buffer = gf_malloc(sizeof(char)*length);
gf_bs_read_data(bs, (char*)bw->buffer.buffer, length);
} else {
if ( ((SFString *)field->far_ptr)->buffer ) gf_free( ((SFString *)field->far_ptr)->buffer);
((SFString *)field->far_ptr)->buffer = (char *)gf_malloc(sizeof(char)*(length+1));
memset(((SFString *)field->far_ptr)->buffer , 0, length+1);
for (i=0; i<length; i++) {
((SFString *)field->far_ptr)->buffer[i] = gf_bs_read_int(bs, 8);
}
}
break;
case GF_SG_VRML_SFURL:
{
SFURL *url = (SFURL *) field->far_ptr;
size = gf_bs_read_int(bs, 1);
if (size) {
if (url->url) gf_free(url->url );
url->url = NULL;
length = gf_bs_read_int(bs, 10);
url->OD_ID = length;
} else {
if ( url->OD_ID ) url->OD_ID = (u32) -1;
size = gf_bs_read_int(bs, 5);
length = gf_bs_read_int(bs, size);
if (gf_bs_available(bs) < length) return GF_NON_COMPLIANT_BITSTREAM;
buffer = NULL;
if (length) {
buffer = (char *)gf_malloc(sizeof(char)*(length+1));
memset(buffer, 0, length+1);
for (i=0; i<length; i++) buffer[i] = gf_bs_read_int(bs, 8);
}
if (url->url) gf_free( url->url);
/*if URL is empty set it to NULL*/
if (buffer && strlen(buffer)) {
url->url = buffer;
} else {
gf_free(buffer);
url->url = NULL;
}
}
}
break;
case GF_SG_VRML_SFIMAGE:
if (((SFImage *)field->far_ptr)->pixels) gf_free(((SFImage *)field->far_ptr)->pixels);
w = gf_bs_read_int(bs, 12);
h = gf_bs_read_int(bs, 12);
length = gf_bs_read_int(bs, 2);
if (length > 3) length = 3;
length += 1;
size = w * h * length;
if (gf_bs_available(bs) < size) return GF_NON_COMPLIANT_BITSTREAM;
((SFImage *)field->far_ptr)->width = w;
((SFImage *)field->far_ptr)->height = h;
((SFImage *)field->far_ptr)->numComponents = length;
((SFImage *)field->far_ptr)->pixels = (unsigned char *)gf_malloc(sizeof(char)*size);
//WARNING: Buffers are NOT ALIGNED IN THE BITSTREAM
for (i=0; i<size; i++) {
((SFImage *)field->far_ptr)->pixels[i] = gf_bs_read_int(bs, 8);
}
break;
case GF_SG_VRML_SFCOMMANDBUFFER:
{
SFCommandBuffer *sfcb = (SFCommandBuffer *)field->far_ptr;
if (sfcb->buffer) {
gf_free(sfcb->buffer);
sfcb->buffer = NULL;
}
while (gf_list_count(sfcb->commandList)) {
GF_Command *com = (GF_Command*)gf_list_get(sfcb->commandList, 0);
gf_list_rem(sfcb->commandList, 0);
gf_sg_command_del(com);
}
size = gf_bs_read_int(bs, 5);
length = gf_bs_read_int(bs, size);
if (gf_bs_available(bs) < length) return GF_NON_COMPLIANT_BITSTREAM;
sfcb->bufferSize = length;
if (length) {
sfcb->buffer = (unsigned char *)gf_malloc(sizeof(char)*(length));
//WARNING Buffers are NOT ALIGNED IN THE BITSTREAM
for (i=0; i<length; i++) {
sfcb->buffer[i] = gf_bs_read_int(bs, 8);
}
}
//notify the node - this is needed in case an enhencement layer replaces the buffer, in which case
//the # ID Bits may change
SFCommandBufferChanged(codec, node);
/*
1 - memory mode, register command buffer for later parsing
2 - InputSensor only works on decompressed commands
*/
if (codec->dec_memory_mode || (node->sgprivate->tag==TAG_MPEG4_InputSensor)) {
CommandBufferItem *cbi = (CommandBufferItem *)gf_malloc(sizeof(CommandBufferItem));
cbi->node = node;
cbi->cb = sfcb;
gf_list_add(codec->command_buffers, cbi);
}
}
break;
case GF_SG_VRML_SFNODE:
//for nodes the field ptr is a ptr to the field, which is a node ptr ;)
new_node = gf_bifs_dec_node(codec, bs, field->NDTtype);
if (new_node) {
e = gf_node_register(new_node, is_mem_com ? NULL : node);
if (e) return e;
}
//it may happen that new_node is NULL (this is valid for a proto declaration)
*((GF_Node **) field->far_ptr) = new_node;
break;
case GF_SG_VRML_SFSCRIPT:
#ifdef GPAC_HAS_SPIDERMONKEY
codec->LastError = SFScript_Parse(codec, (SFScript*)field->far_ptr, bs, node);
#else
return GF_NOT_SUPPORTED;
#endif
break;
case GF_SG_VRML_SFATTRREF:
{
SFAttrRef *ar = (SFAttrRef *)field->far_ptr;
u32 nodeID = 1 + gf_bs_read_int(bs, codec->info->config.NodeIDBits);
ar->node = gf_sg_find_node(codec->current_graph, nodeID);
if (!ar->node) {
} else {
u32 nbBitsDEF = gf_get_bit_size(gf_node_get_num_fields_in_mode(ar->node, GF_SG_FIELD_CODING_DEF) - 1);
u32 field_ref = gf_bs_read_int(bs, nbBitsDEF);
codec->LastError = gf_bifs_get_field_index(ar->node, field_ref, GF_SG_FIELD_CODING_DEF, &ar->fieldIndex);
}
}
break;
default:
return GF_NON_COMPLIANT_BITSTREAM;
}
return codec->LastError;
}
GF_Err gf_bifs_dec_sf_field(GF_BifsDecoder * codec, GF_BitStream *bs, GF_Node *node, GF_FieldInfo *field)
{
GF_Err e;
GF_Node *new_node;
u32 size, length, w, h, i;
char *buffer;
//blindly call unquantize. return is OK, error or GF_EOS
if (codec->ActiveQP && node) {
e = gf_bifs_dec_unquant_field(codec, bs, node, field);
if (e != GF_EOS) return e;
}
//not quantized, use normal scheme
switch (field->fieldType) {
case GF_SG_VRML_SFBOOL:
* ((SFBool *) field->far_ptr) = (SFBool) gf_bs_read_int(bs, 1);
break;
case GF_SG_VRML_SFCOLOR:
((SFColor *)field->far_ptr)->red = BD_ReadSFFloat(codec, bs);;
((SFColor *)field->far_ptr)->green = BD_ReadSFFloat(codec, bs);
((SFColor *)field->far_ptr)->blue = BD_ReadSFFloat(codec, bs);
break;
case GF_SG_VRML_SFFLOAT:
*((SFFloat *)field->far_ptr) = BD_ReadSFFloat(codec, bs);
break;
case GF_SG_VRML_SFINT32:
*((SFInt32 *)field->far_ptr) = (s32) gf_bs_read_int(bs, 32);
break;
case GF_SG_VRML_SFTIME:
*((SFTime *)field->far_ptr) = gf_bs_read_double(bs);
if (node) BD_CheckSFTimeOffset(codec, node, field);
break;
case GF_SG_VRML_SFVEC2F:
((SFVec2f *)field->far_ptr)->x = BD_ReadSFFloat(codec, bs);
((SFVec2f *)field->far_ptr)->y = BD_ReadSFFloat(codec, bs);
break;
case GF_SG_VRML_SFVEC3F:
((SFVec3f *)field->far_ptr)->x = BD_ReadSFFloat(codec, bs);
((SFVec3f *)field->far_ptr)->y = BD_ReadSFFloat(codec, bs);
((SFVec3f *)field->far_ptr)->z = BD_ReadSFFloat(codec, bs);
break;
case GF_SG_VRML_SFROTATION:
((SFRotation *)field->far_ptr)->x = BD_ReadSFFloat(codec, bs);
((SFRotation *)field->far_ptr)->y = BD_ReadSFFloat(codec, bs);
((SFRotation *)field->far_ptr)->z = BD_ReadSFFloat(codec, bs);
((SFRotation *)field->far_ptr)->q = BD_ReadSFFloat(codec, bs);
break;
case GF_SG_VRML_SFSTRING:
size = gf_bs_read_int(bs, 5);
length = gf_bs_read_int(bs, size);
if (gf_bs_available(bs) < length) return GF_NON_COMPLIANT_BITSTREAM;
if (node && (node->sgprivate->tag==TAG_MPEG4_CacheTexture) && (field->fieldIndex<=2)) {
Bool skip_file_url_proto=0;
char *name;
FILE *f;
M_CacheTexture *ct = (M_CacheTexture *) node;
char *buf = gf_malloc(sizeof(char)*length);
gf_bs_read_data(bs, buf, length);
if (ct->cacheURL.buffer) {
name = gf_strdup(ct->cacheURL.buffer);
} else {
char szImg[100], *ext;
switch (ct->objectTypeIndication) {
case GPAC_OTI_IMAGE_JPEG: ext = "jpg"; break;
case GPAC_OTI_IMAGE_PNG: ext = "png"; break;
case GPAC_OTI_IMAGE_JPEG_2000: ext = "jp2"; break;
default: ext = "img";
}
sprintf(szImg, "%p%p.%s", codec, ct, ext);
name = gf_strdup(szImg);
}
if (codec->extraction_path) {
char *path;
u32 len = strlen(name)+strlen(codec->extraction_path)+2;
if (strnicmp(codec->extraction_path, "file://", 7)) len+=7;
/*SHA1 of service in hexa*/
if (codec->service_url) len += 41;
path = gf_malloc(sizeof(char)*len);
path[0] = 0;
/*force using file:// URL prototype to avoid confusion with resources adressed from the root of the source server*/
if (strnicmp(codec->extraction_path, "file://", 7)) strcpy(path, "file://");
strcat(path, codec->extraction_path);
strcat(path, "/");
if (codec->service_url) {
u8 hash[20];
u32 i;
gf_sha1_csum(codec->service_url, strlen(codec->service_url), hash);
for (i=0; i<20; i++) {
char t[3];
t[2] = 0;
sprintf(t, "%02X", hash[i]);
strcat(path, t);
}
strcat(path, "_");
}
strcat(path, name);
gf_free(name);
name = path;
skip_file_url_proto = 1;
}
((SFString *)field->far_ptr)->buffer = name;
/*skip the initial file://*/
f = gf_f64_open(name + (skip_file_url_proto ? 7 : 0), "wb");
fwrite(buf, 1, length, f);
fclose(f);
gf_free(buf);
} else {
if ( ((SFString *)field->far_ptr)->buffer ) gf_free( ((SFString *)field->far_ptr)->buffer);
((SFString *)field->far_ptr)->buffer = (char *)gf_malloc(sizeof(char)*(length+1));
memset(((SFString *)field->far_ptr)->buffer , 0, length+1);
for (i=0; i<length; i++) {
((SFString *)field->far_ptr)->buffer[i] = gf_bs_read_int(bs, 8);
}
}
break;
case GF_SG_VRML_SFURL:
{
SFURL *url = (SFURL *) field->far_ptr;
size = gf_bs_read_int(bs, 1);
if (size) {
if (url->url) gf_free(url->url );
url->url = NULL;
length = gf_bs_read_int(bs, 10);
url->OD_ID = length;
} else {
if ( url->OD_ID ) url->OD_ID = (u32) -1;
size = gf_bs_read_int(bs, 5);
length = gf_bs_read_int(bs, size);
if (gf_bs_available(bs) < length) return GF_NON_COMPLIANT_BITSTREAM;
buffer = NULL;
if (length) {
buffer = (char *)gf_malloc(sizeof(char)*(length+1));
memset(buffer, 0, length+1);
for (i=0; i<length; i++) buffer[i] = gf_bs_read_int(bs, 8);
}
if (url->url) gf_free( url->url);
/*if URL is empty set it to NULL*/
if (buffer && strlen(buffer)) {
url->url = buffer;
} else {
gf_free(buffer);
url->url = NULL;
}
}
}
break;
case GF_SG_VRML_SFIMAGE:
if (((SFImage *)field->far_ptr)->pixels) gf_free(((SFImage *)field->far_ptr)->pixels);
w = gf_bs_read_int(bs, 12);
h = gf_bs_read_int(bs, 12);
length = gf_bs_read_int(bs, 2);
if (length > 3) length = 3;
length += 1;
size = w * h * length;
if (gf_bs_available(bs) < size) return GF_NON_COMPLIANT_BITSTREAM;
((SFImage *)field->far_ptr)->width = w;
((SFImage *)field->far_ptr)->height = h;
((SFImage *)field->far_ptr)->numComponents = length;
((SFImage *)field->far_ptr)->pixels = (unsigned char *)gf_malloc(sizeof(char)*size);
//WARNING: Buffers are NOT ALIGNED IN THE BITSTREAM
for (i=0; i<size; i++) {
((SFImage *)field->far_ptr)->pixels[i] = gf_bs_read_int(bs, 8);
}
break;
case GF_SG_VRML_SFCOMMANDBUFFER:
{
SFCommandBuffer *sfcb = (SFCommandBuffer *)field->far_ptr;
if (sfcb->buffer) {
gf_free(sfcb->buffer);
sfcb->buffer = NULL;
}
while (gf_list_count(sfcb->commandList)) {
GF_Command *com = (GF_Command*)gf_list_get(sfcb->commandList, 0);
gf_list_rem(sfcb->commandList, 0);
gf_sg_command_del(com);
}
size = gf_bs_read_int(bs, 5);
length = gf_bs_read_int(bs, size);
if (gf_bs_available(bs) < length) return GF_NON_COMPLIANT_BITSTREAM;
sfcb->bufferSize = length;
if (length) {
sfcb->buffer = (unsigned char *)gf_malloc(sizeof(char)*(length));
//WARNING Buffers are NOT ALIGNED IN THE BITSTREAM
for (i=0; i<length; i++) {
sfcb->buffer[i] = gf_bs_read_int(bs, 8);
}
}
//notify the node - this is needed in case an enhencement layer replaces the buffer, in which case
//the # ID Bits may change
SFCommandBufferChanged(codec, node);
/*
1 - memory mode, register command buffer for later parsing
2 - InputSensor only works on decompressed commands
*/
if (codec->dec_memory_mode || (node->sgprivate->tag==TAG_MPEG4_InputSensor)) {
CommandBufferItem *cbi = (CommandBufferItem *)gf_malloc(sizeof(CommandBufferItem));
cbi->node = node;
cbi->cb = sfcb;
gf_list_add(codec->command_buffers, cbi);
}
}
break;
case GF_SG_VRML_SFNODE:
//for nodes the field ptr is a ptr to the field, which is a node ptr ;)
new_node = gf_bifs_dec_node(codec, bs, field->NDTtype);
if (new_node) {
e = gf_node_register(new_node, node);
if (e) return e;
}
//it may happen that new_node is NULL (this is valid for a proto declaration)
*((GF_Node **) field->far_ptr) = new_node;
break;
case GF_SG_VRML_SFSCRIPT:
#ifdef GPAC_HAS_SPIDERMONKEY
codec->LastError = SFScript_Parse(codec, (SFScript*)field->far_ptr, bs, node);
#else
return GF_NOT_SUPPORTED;
#endif
break;
case GF_SG_VRML_SFATTRREF:
{
SFAttrRef *ar = (SFAttrRef *)field->far_ptr;
u32 nodeID = 1 + gf_bs_read_int(bs, codec->info->config.NodeIDBits);
ar->node = gf_sg_find_node(codec->current_graph, nodeID);
if (!ar->node) {
} else {
u32 nbBitsDEF = gf_get_bit_size(gf_node_get_num_fields_in_mode(ar->node, GF_SG_FIELD_CODING_DEF) - 1);
u32 field_ref = gf_bs_read_int(bs, nbBitsDEF);
codec->LastError = gf_bifs_get_field_index(ar->node, field_ref, GF_SG_FIELD_CODING_DEF, &ar->fieldIndex);
}
}
break;
default:
return GF_NON_COMPLIANT_BITSTREAM;
}
return codec->LastError;
}
