void V4SceneGraph::LoadNew()
{
if (m_pSm) {
gf_sr_set_scene(m_pSr, NULL);
gf_sm_del(m_pSm);
m_pSm = NULL;
gf_sg_del(m_pSg);
m_pSg = NULL;
}
if (m_pOriginal_mp4) gf_free(m_pOriginal_mp4);
m_pOriginal_mp4 = NULL;
m_pIs = gf_is_new(NULL);
m_pSg = m_pIs->graph;
gf_sg_set_init_callback(m_pSg, v4s_node_init, this);
gf_sr_set_scene(m_pSr, m_pSg);
m_pSm = gf_sm_new(m_pSg);
/* Create a BIFS stream with one AU with on ReplaceScene */
GF_StreamContext *sc = gf_sm_stream_new(m_pSm, 1, GF_STREAM_SCENE, 0);
GF_AUContext *au = gf_sm_stream_au_new(sc, 0, 0, 1);
GF_Command *command = gf_sg_command_new(m_pSg, GF_SG_SCENE_REPLACE);
gf_list_add(au->commands, command);
// reinitializes the node pool
frame->pools.Clear();
}
static GF_AUContext *gf_seng_create_new_au(GF_StreamContext *sc, u32 time)
{
GF_AUContext *new_au, *last_au;
last_au = gf_list_last(sc->AUs);
if (last_au && last_au->timing == time) {
GF_LOG(GF_LOG_DEBUG, GF_LOG_SCENE, ("[SceneEngine] Forcing new AU\n"));
time++;
}
new_au = gf_sm_stream_au_new(sc, time, 0, 0);
return new_au;
}
void V4SceneManager::LoadNew()
{
LoadCommon();
/* Create a BIFS stream with one AU with one ReplaceScene */
GF_StreamContext *sc = gf_sm_stream_new(m_pSm, 1, GF_STREAM_SCENE, 0);
GF_AUContext *au = gf_sm_stream_au_new(sc, 0, 0, 1);
GF_Command *command = gf_sg_command_new(m_pIs->graph, GF_SG_SCENE_REPLACE);
gf_list_add(au->commands, command);
SetLength(50);
SetFrameRate(25);
// reinitializes the node pool
pools.Clear();
}
GF_EXPORT
GF_Err gf_sm_make_random_access(GF_SceneManager *ctx)
{
GF_Err e;
u32 i, j, stream_count, au_count, com_count;
GF_AUContext *au;
GF_Command *com;
e = GF_OK;
stream_count = gf_list_count(ctx->streams);
for (i=0; i<stream_count; i++) {
GF_StreamContext *sc = (GF_StreamContext *)gf_list_get(ctx->streams, i);
/*FIXME - do this as well for ODs*/
if (sc->streamType == GF_STREAM_SCENE) {
/*apply all commands - this will also apply the SceneReplace*/
j=0;
while ((au = (GF_AUContext *)gf_list_enum(sc->AUs, &j))) {
e = gf_sg_command_apply_list(ctx->scene_graph, au->commands, 0);
if (e) return e;
}
/* Delete all the commands in the stream */
while ( (au_count = gf_list_count(sc->AUs)) ) {
au = (GF_AUContext *)gf_list_get(sc->AUs, au_count-1);
gf_list_rem(sc->AUs, au_count-1);
while ( (com_count = gf_list_count(au->commands)) ) {
com = (GF_Command*)gf_list_get(au->commands, com_count - 1);
gf_list_rem(au->commands, com_count - 1);
gf_sg_command_del(com);
}
gf_list_del(au->commands);
free(au);
}
/*and recreate scene replace*/
au = gf_sm_stream_au_new(sc, 0, 0, 1);
com = gf_sg_command_new(ctx->scene_graph, GF_SG_SCENE_REPLACE);
com->node = ctx->scene_graph->RootNode;
ctx->scene_graph->RootNode = NULL;
gf_list_del(com->new_proto_list);
com->new_proto_list = ctx->scene_graph->protos;
ctx->scene_graph->protos = NULL;
/*FIXME - check routes & protos*/
gf_list_add(au->commands, com);
}
}
return e;
}
GF_EXPORT
GF_Err gf_sm_aggregate(GF_SceneManager *ctx, u16 ESID)
{
GF_Err e;
u32 i, stream_count;
#ifndef GPAC_DISABLE_VRML
u32 j;
GF_AUContext *au;
GF_Command *com;
#endif
e = GF_OK;
#if DEBUG_RAP
com_count = 0;
stream_count = gf_list_count(ctx->streams);
for (i=0; i<stream_count; i++) {
GF_StreamContext *sc = (GF_StreamContext *)gf_list_get(ctx->streams, i);
if (sc->streamType == GF_STREAM_SCENE) {
au_count = gf_list_count(sc->AUs);
for (j=0; j<au_count; j++) {
au = (GF_AUContext *)gf_list_get(sc->AUs, j);
com_count += gf_list_count(au->commands);
}
}
}
GF_LOG(GF_LOG_INFO, GF_LOG_SCENE, ("[SceneManager] Making RAP with %d commands\n", com_count));
#endif
stream_count = gf_list_count(ctx->streams);
for (i=0; i<stream_count; i++) {
GF_AUContext *carousel_au;
GF_List *carousel_commands;
GF_StreamContext *aggregate_on_stream;
GF_StreamContext *sc = (GF_StreamContext *)gf_list_get(ctx->streams, i);
if (ESID && (sc->ESID!=ESID)) continue;
/*locate the AU in which our commands will be aggregated*/
carousel_au = NULL;
carousel_commands = NULL;
aggregate_on_stream = sc->aggregate_on_esid ? gf_sm_get_stream(ctx, sc->aggregate_on_esid) : NULL;
if (aggregate_on_stream==sc) {
carousel_commands = gf_list_new();
} else if (aggregate_on_stream) {
if (!gf_list_count(aggregate_on_stream->AUs)) {
carousel_au = gf_sm_stream_au_new(aggregate_on_stream, 0, 0, 1);
} else {
/* assert we already performed aggregation */
assert(gf_list_count(aggregate_on_stream->AUs)==1);
carousel_au = gf_list_get(aggregate_on_stream->AUs, 0);
}
carousel_commands = carousel_au->commands;
}
/*TODO - do this as well for ODs*/
#ifndef GPAC_DISABLE_VRML
if (sc->streamType == GF_STREAM_SCENE) {
Bool has_modif = 0;
/*we check for each stream if it is a base stream (SceneReplace ...) - several streams may carry RAPs if inline nodes are used*/
Bool base_stream_found = 0;
/*in DIMS we use an empty initial AU with no commands to signal the RAP*/
if (sc->objectType == GPAC_OTI_SCENE_DIMS) base_stream_found = 1;
/*apply all commands - this will also apply the SceneReplace*/
while (gf_list_count(sc->AUs)) {
u32 count;
au = (GF_AUContext *) gf_list_get(sc->AUs, 0);
gf_list_rem(sc->AUs, 0);
/*AU not aggregated*/
if (au->flags & GF_SM_AU_NOT_AGGREGATED) {
gf_sm_au_del(sc, au);
continue;
}
count = gf_list_count(au->commands);
for (j=0; j<count; j++) {
u32 store=0;
com = gf_list_get(au->commands, j);
if (!base_stream_found) {
switch (com->tag) {
case GF_SG_SCENE_REPLACE:
case GF_SG_LSR_NEW_SCENE:
case GF_SG_LSR_REFRESH_SCENE:
base_stream_found = 1;
break;
}
}
/*aggregate the command*/
/*if stream doesn't carry a carousel or carries the base carousel (scene replace), always apply the command*/
if (base_stream_found || !sc->aggregate_on_esid) {
store = 0;
}
/*otherwise, check wether the command should be kept in this stream as is, or can be aggregated on this stream*/
else {
switch (com->tag) {
/*the following commands do not impact a sub-tree (eg do not deal with nodes), we cannot
aggregate them... */
case GF_SG_ROUTE_REPLACE:
case GF_SG_ROUTE_DELETE:
case GF_SG_ROUTE_INSERT:
case GF_SG_PROTO_INSERT:
case GF_SG_PROTO_DELETE:
case GF_SG_PROTO_DELETE_ALL:
case GF_SG_GLOBAL_QUANTIZER:
case GF_SG_LSR_RESTORE:
case GF_SG_LSR_SAVE:
case GF_SG_LSR_SEND_EVENT:
case GF_SG_LSR_CLEAN:
/*todo check in which category to put these commands*/
// case GF_SG_LSR_ACTIVATE:
// case GF_SG_LSR_DEACTIVATE:
store = 1;
break;
/*other commands:
!!! we need to know if the target node of the command has been inserted in this stream !!!
This is a tedious task, for now we will consider the following cases:
- locate a similar command in the stored list: remove the similar one and aggregate on stream
- by default all AUs are stored if the stream is in aggregate mode - we should fix that by checking insertion points:
if a command apllies on a node that has been inserted in this stream, we can aggregate, otherwise store
*/
default:
/*check if we can directly store the command*/
assert(carousel_commands);
store = store_or_aggregate(sc, com, carousel_commands, &has_modif);
break;
}
}
switch (store) {
/*command has been merged with a previous command in carousel and needs to be destroyed*/
case 2:
gf_list_rem(au->commands, j);
j--;
count--;
gf_sg_command_del((GF_Command *)com);
break;
/*command shall be moved to carousel without being applied*/
case 1:
gf_list_insert(carousel_commands, com, 0);
gf_list_rem(au->commands, j);
j--;
count--;
break;
/*command can be applied*/
default:
e = gf_sg_command_apply(ctx->scene_graph, com, 0);
break;
}
}
gf_sm_au_del(sc, au);
}
/*and recreate scene replace*/
if (base_stream_found) {
au = gf_sm_stream_au_new(sc, 0, 0, 1);
switch (sc->objectType) {
case GPAC_OTI_SCENE_BIFS:
case GPAC_OTI_SCENE_BIFS_V2:
com = gf_sg_command_new(ctx->scene_graph, GF_SG_SCENE_REPLACE);
break;
case GPAC_OTI_SCENE_LASER:
com = gf_sg_command_new(ctx->scene_graph, GF_SG_LSR_NEW_SCENE);
break;
case GPAC_OTI_SCENE_DIMS:
/* We do not create a new command, empty AU is enough in DIMS*/
default:
com = NULL;
break;
}
if (com) {
com->node = ctx->scene_graph->RootNode;
ctx->scene_graph->RootNode = NULL;
gf_list_del(com->new_proto_list);
com->new_proto_list = ctx->scene_graph->protos;
ctx->scene_graph->protos = NULL;
/*indicate the command is the aggregated scene graph, so that PROTOs and ROUTEs
are taken from the scenegraph when encoding*/
com->aggregated = 1;
gf_list_add(au->commands, com);
}
}
/*update carousel flags of the AU*/
else if (carousel_commands) {
/*if current stream caries its own carousel*/
if (!carousel_au) {
carousel_au = gf_sm_stream_au_new(sc, 0, 0, 1);
gf_list_del(carousel_au->commands);
carousel_au->commands = carousel_commands;
}
carousel_au->flags |= GF_SM_AU_RAP | GF_SM_AU_CAROUSEL;
if (has_modif) carousel_au->flags |= GF_SM_AU_MODIFIED;
}
}
#endif
}
return e;
}
/*import cubic QTVR to mp4*/
GF_Err gf_sm_load_init_qt(GF_SceneLoader *load)
{
u32 i, di, w, h, tk, nb_samp;
Bool has_qtvr;
GF_ISOSample *samp;
GF_ISOFile *src;
GF_StreamContext *st;
GF_AUContext *au;
GF_Command *com;
M_Background *back;
M_NavigationInfo *ni;
M_Group *gr;
GF_ODUpdate *odU;
GF_SceneGraph *sg;
GF_ObjectDescriptor *od;
GF_ESD *esd;
if (!load->ctx) return GF_NOT_SUPPORTED;
src = gf_isom_open(load->fileName, GF_ISOM_OPEN_READ, NULL);
if (!src) return gf_qt_report(load, GF_URL_ERROR, "Opening file %s failed", load->fileName);
w = h = tk = 0;
nb_samp = 0;
has_qtvr = 0;
for (i=0; i<gf_isom_get_track_count(src); i++) {
switch (gf_isom_get_media_type(src, i+1)) {
case GF_ISOM_MEDIA_VISUAL:
if (gf_isom_get_media_subtype(src, i+1, 1) == GF_4CC('j', 'p', 'e', 'g')) {
GF_GenericSampleDescription *udesc = gf_isom_get_generic_sample_description(src, i+1, 1);
if ((udesc->width>w) || (udesc->height>h)) {
w = udesc->width;
h = udesc->height;
tk = i+1;
nb_samp = gf_isom_get_sample_count(src, i+1);
}
if (udesc->extension_buf) gf_free(udesc->extension_buf);
gf_free(udesc);
}
break;
case GF_4CC('q','t','v','r'):
has_qtvr = 1;
break;
}
}
if (!has_qtvr) {
gf_isom_delete(src);
return gf_qt_report(load, GF_NOT_SUPPORTED, "QTVR not found - no conversion available for this QuickTime movie");
}
if (!tk) {
gf_isom_delete(src);
return gf_qt_report(load, GF_NON_COMPLIANT_BITSTREAM, "No associated visual track with QTVR movie");
}
if (nb_samp!=6) {
gf_isom_delete(src);
return gf_qt_report(load, GF_NOT_SUPPORTED, "Movie %s doesn't look a Cubic QTVR - sorry...", load->fileName);
}
GF_LOG(GF_LOG_INFO, GF_LOG_PARSER, ("QT: Importing Cubic QTVR Movie"));
/*create scene*/
sg = load->ctx->scene_graph;
gr = (M_Group *) gf_node_new(sg, TAG_MPEG4_Group);
gf_node_register((GF_Node *)gr, NULL);
st = gf_sm_stream_new(load->ctx, 1, GF_STREAM_SCENE, 1);
au = gf_sm_stream_au_new(st, 0, 0, 1);
com = gf_sg_command_new(load->ctx->scene_graph, GF_SG_SCENE_REPLACE);
gf_list_add(au->commands, com);
com->node = (GF_Node *)gr;
back = (M_Background *) gf_node_new(sg, TAG_MPEG4_Background);
gf_node_list_add_child( &gr->children, (GF_Node*)back);
gf_node_register((GF_Node *)back, (GF_Node *)gr);
gf_sg_vrml_mf_alloc(&back->leftUrl, GF_SG_VRML_MFURL, 1);
back->leftUrl.vals[0].OD_ID = 2;
gf_sg_vrml_mf_alloc(&back->frontUrl, GF_SG_VRML_MFURL, 1);
back->frontUrl.vals[0].OD_ID = 3;
gf_sg_vrml_mf_alloc(&back->rightUrl, GF_SG_VRML_MFURL, 1);
back->rightUrl.vals[0].OD_ID = 4;
gf_sg_vrml_mf_alloc(&back->backUrl, GF_SG_VRML_MFURL, 1);
back->backUrl.vals[0].OD_ID = 5;
gf_sg_vrml_mf_alloc(&back->topUrl, GF_SG_VRML_MFURL, 1);
back->topUrl.vals[0].OD_ID = 6;
gf_sg_vrml_mf_alloc(&back->bottomUrl, GF_SG_VRML_MFURL, 1);
back->bottomUrl.vals[0].OD_ID = 7;
ni = (M_NavigationInfo *) gf_node_new(sg, TAG_MPEG4_NavigationInfo);
gf_node_list_add_child(&gr->children, (GF_Node*)ni);
gf_node_register((GF_Node *)ni, (GF_Node *)gr);
gf_sg_vrml_mf_reset(&ni->type, GF_SG_VRML_MFSTRING);
gf_sg_vrml_mf_alloc(&ni->type, GF_SG_VRML_MFSTRING, 1);
ni->type.vals[0] = gf_strdup("QTVR");
/*create ODs*/
st = gf_sm_stream_new(load->ctx, 2, GF_STREAM_OD, 1);
au = gf_sm_stream_au_new(st, 0, 0, 1);
odU = (GF_ODUpdate*) gf_odf_com_new(GF_ODF_OD_UPDATE_TAG);
gf_list_add(au->commands, odU);
for (i=0; i<6; i++) {
GF_MuxInfo *mi;
FILE *img;
char szName[1024];
od = (GF_ObjectDescriptor *) gf_odf_desc_new(GF_ODF_OD_TAG);
od->objectDescriptorID = 2+i;
esd = gf_odf_desc_esd_new(2);
esd->decoderConfig->streamType = GF_STREAM_VISUAL;
esd->decoderConfig->objectTypeIndication = GPAC_OTI_IMAGE_JPEG;
esd->ESID = 3+i;
/*extract image and remember it*/
mi = (GF_MuxInfo *) gf_odf_desc_new(GF_ODF_MUXINFO_TAG);
gf_list_add(esd->extensionDescriptors, mi);
mi->delete_file = 1;
sprintf(szName, "%s_img%d.jpg", load->fileName, esd->ESID);
mi->file_name = gf_strdup(szName);
gf_list_add(od->ESDescriptors, esd);
gf_list_add(odU->objectDescriptors, od);
samp = gf_isom_get_sample(src, tk, i+1, &di);
img = gf_f64_open(mi->file_name, "wb");
fwrite(samp->data, samp->dataLength, 1, img);
fclose(img);
gf_isom_sample_del(&samp);
}
gf_isom_delete(src);
return GF_OK;
}
static GF_Err gf_sm_load_run_isom(GF_SceneLoader *load)
{
GF_Err e;
FILE *logs;
u32 i, j, di, nbBifs, nbLaser, nb_samp, samp_done, init_offset;
GF_StreamContext *sc;
GF_ESD *esd;
GF_ODCodec *od_dec;
#ifndef GPAC_DISABLE_BIFS
GF_BifsDecoder *bifs_dec;
#endif
#ifndef GPAC_DISABLE_LASER
GF_LASeRCodec *lsr_dec;
#endif
if (!load || !load->isom) return GF_BAD_PARAM;
nbBifs = nbLaser = 0;
e = GF_OK;
#ifndef GPAC_DISABLE_BIFS
bifs_dec = gf_bifs_decoder_new(load->scene_graph, 1);
gf_bifs_decoder_set_extraction_path(bifs_dec, load->localPath, load->fileName);
#endif
od_dec = gf_odf_codec_new();
logs = NULL;
#ifndef GPAC_DISABLE_LASER
lsr_dec = gf_laser_decoder_new(load->scene_graph);
#endif
esd = NULL;
/*load each stream*/
nb_samp = 0;
for (i=0; i<gf_isom_get_track_count(load->isom); i++) {
u32 type = gf_isom_get_media_type(load->isom, i+1);
switch (type) {
case GF_ISOM_MEDIA_SCENE:
case GF_ISOM_MEDIA_OD:
nb_samp += gf_isom_get_sample_count(load->isom, i+1);
break;
default:
break;
}
}
samp_done = 1;
gf_isom_text_set_streaming_mode(load->isom, 1);
for (i=0; i<gf_isom_get_track_count(load->isom); i++) {
u32 type = gf_isom_get_media_type(load->isom, i+1);
switch (type) {
case GF_ISOM_MEDIA_SCENE:
case GF_ISOM_MEDIA_OD:
break;
default:
continue;
}
esd = gf_isom_get_esd(load->isom, i+1, 1);
if (!esd) continue;
if ((esd->decoderConfig->objectTypeIndication == GPAC_OTI_SCENE_AFX) ||
(esd->decoderConfig->objectTypeIndication == GPAC_OTI_SCENE_SYNTHESIZED_TEXTURE)
) {
nb_samp += gf_isom_get_sample_count(load->isom, i+1);
continue;
}
sc = gf_sm_stream_new(load->ctx, esd->ESID, esd->decoderConfig->streamType, esd->decoderConfig->objectTypeIndication);
sc->streamType = esd->decoderConfig->streamType;
sc->ESID = esd->ESID;
sc->objectType = esd->decoderConfig->objectTypeIndication;
sc->timeScale = gf_isom_get_media_timescale(load->isom, i+1);
/*we still need to reconfig the BIFS*/
if (esd->decoderConfig->streamType==GF_STREAM_SCENE) {
#ifndef GPAC_DISABLE_BIFS
/*BIFS*/
if (esd->decoderConfig->objectTypeIndication<=2) {
if (!esd->dependsOnESID && nbBifs && !i)
mp4_report(load, GF_OK, "several scene namespaces used or improper scene dependencies in file - import may be incorrect");
if (!esd->decoderConfig->decoderSpecificInfo) {
/* Hack for T-DMB non compliant streams */
e = gf_bifs_decoder_configure_stream(bifs_dec, esd->ESID, NULL, 0, esd->decoderConfig->objectTypeIndication);
} else {
e = gf_bifs_decoder_configure_stream(bifs_dec, esd->ESID, esd->decoderConfig->decoderSpecificInfo->data, esd->decoderConfig->decoderSpecificInfo->dataLength, esd->decoderConfig->objectTypeIndication);
}
if (e) goto exit;
nbBifs++;
}
#endif
#ifndef GPAC_DISABLE_LASER
/*LASER*/
if (esd->decoderConfig->objectTypeIndication==0x09) {
if (!esd->dependsOnESID && nbBifs && !i)
mp4_report(load, GF_OK, "several scene namespaces used or improper scene dependencies in file - import may be incorrect");
e = gf_laser_decoder_configure_stream(lsr_dec, esd->ESID, esd->decoderConfig->decoderSpecificInfo->data, esd->decoderConfig->decoderSpecificInfo->dataLength);
if (e) goto exit;
nbLaser++;
}
#endif
}
init_offset = 0;
/*dump all AUs*/
for (j=0; j<gf_isom_get_sample_count(load->isom, i+1); j++) {
GF_AUContext *au;
GF_ISOSample *samp = gf_isom_get_sample(load->isom, i+1, j+1, &di);
if (!samp) {
mp4_report(load, gf_isom_last_error(load->isom), "Unable to fetch sample %d from track ID %d - aborting track import", j+1, gf_isom_get_track_id(load->isom, i+1));
break;
}
/*check if track has initial offset*/
if (!j && gf_isom_get_edit_segment_count(load->isom, i+1)) {
u64 EditTime, dur, mtime;
u8 mode;
gf_isom_get_edit_segment(load->isom, i+1, 1, &EditTime, &dur, &mtime, &mode);
if (mode==GF_ISOM_EDIT_EMPTY) {
init_offset = (u32) (dur * sc->timeScale / gf_isom_get_timescale(load->isom) );
}
}
samp->DTS += init_offset;
au = gf_sm_stream_au_new(sc, samp->DTS, ((Double)(s64) samp->DTS) / sc->timeScale, (samp->IsRAP==RAP) ? 1 : 0);
if (esd->decoderConfig->streamType==GF_STREAM_SCENE) {
#ifndef GPAC_DISABLE_BIFS
if (esd->decoderConfig->objectTypeIndication<=2)
e = gf_bifs_decode_command_list(bifs_dec, esd->ESID, samp->data, samp->dataLength, au->commands);
#endif
#ifndef GPAC_DISABLE_LASER
if (esd->decoderConfig->objectTypeIndication==0x09)
e = gf_laser_decode_command_list(lsr_dec, esd->ESID, samp->data, samp->dataLength, au->commands);
#endif
} else {
e = gf_odf_codec_set_au(od_dec, samp->data, samp->dataLength);
if (!e) e = gf_odf_codec_decode(od_dec);
if (!e) {
while (1) {
GF_ODCom *odc = gf_odf_codec_get_com(od_dec);
if (!odc) break;
/*update ESDs if any*/
UpdateODCommand(load->isom, odc);
gf_list_add(au->commands, odc);
}
}
}
gf_isom_sample_del(&samp);
if (e) {
mp4_report(load, gf_isom_last_error(load->isom), "decoding sample %d from track ID %d failed", j+1, gf_isom_get_track_id(load->isom, i+1));
goto exit;
}
samp_done++;
gf_set_progress("MP4 Loading", samp_done, nb_samp);
}
gf_odf_desc_del((GF_Descriptor *) esd);
esd = NULL;
}
gf_isom_text_set_streaming_mode(load->isom, 0);
exit:
#ifndef GPAC_DISABLE_BIFS
gf_bifs_decoder_del(bifs_dec);
#endif
gf_odf_codec_del(od_dec);
#ifndef GPAC_DISABLE_LASER
gf_laser_decoder_del(lsr_dec);
#endif
if (esd) gf_odf_desc_del((GF_Descriptor *) esd);
if (logs) gf_fclose(logs);
return e;
}
static GF_Err gf_text_import_srt_bifs(GF_SceneManager *ctx, GF_ESD *src, GF_MuxInfo *mux)
{
GF_Err e;
GF_Node *text, *font;
GF_StreamContext *srt;
FILE *srt_in;
GF_FieldInfo string, style;
u32 sh, sm, ss, sms, eh, em, es, ems, start, end;
GF_AUContext *au;
GF_Command *com;
SFString *sfstr;
GF_CommandField *inf;
Bool italic, underlined, bold;
u32 state, curLine, line, i, len;
char szLine[2048], szText[2048], *ptr;
GF_StreamContext *sc = NULL;
if (!ctx->scene_graph) {
GF_LOG(GF_LOG_ERROR, GF_LOG_PARSER, ("[srt->bifs] base scene not assigned\n"));
return GF_BAD_PARAM;
}
i=0;
while ((sc = (GF_StreamContext*)gf_list_enum(ctx->streams, &i))) {
if (sc->streamType==GF_STREAM_SCENE) break;
sc = NULL;
}
if (!sc) {
GF_LOG(GF_LOG_ERROR, GF_LOG_PARSER, ("[srt->bifs] cannot locate base scene\n"));
return GF_BAD_PARAM;
}
if (!mux->textNode) {
GF_LOG(GF_LOG_ERROR, GF_LOG_PARSER, ("[srt->bifs] Target text node unspecified\n"));
return GF_BAD_PARAM;
}
text = gf_sg_find_node_by_name(ctx->scene_graph, mux->textNode);
if (!text) {
GF_LOG(GF_LOG_ERROR, GF_LOG_PARSER, ("[srt->bifs] cannot find target text node %s\n", mux->textNode));
return GF_BAD_PARAM;
}
if (gf_node_get_field_by_name(text, "string", &string) != GF_OK) {
GF_LOG(GF_LOG_ERROR, GF_LOG_PARSER, ("[srt->bifs] Target text node %s doesn't look like text\n", mux->textNode));
return GF_BAD_PARAM;
}
font = NULL;
if (mux->fontNode) {
font = gf_sg_find_node_by_name(ctx->scene_graph, mux->fontNode);
if (!font) {
GF_LOG(GF_LOG_ERROR, GF_LOG_PARSER, ("[srt->bifs] cannot find target font node %s\n", mux->fontNode));
return GF_BAD_PARAM;
}
if (gf_node_get_field_by_name(font, "style", &style) != GF_OK) {
GF_LOG(GF_LOG_ERROR, GF_LOG_PARSER, ("[srt->bifs] Target font node %s doesn't look like font\n", mux->fontNode));
return GF_BAD_PARAM;
}
}
srt_in = gf_f64_open(mux->file_name, "rt");
if (!srt_in) {
GF_LOG(GF_LOG_ERROR, GF_LOG_PARSER, ("[srt->bifs] cannot open input file %s\n", mux->file_name));
return GF_URL_ERROR;
}
srt = gf_sm_stream_new(ctx, src->ESID, GF_STREAM_SCENE, 1);
if (!srt) return GF_OUT_OF_MEM;
if (!src->slConfig) src->slConfig = (GF_SLConfig *) gf_odf_desc_new(GF_ODF_SLC_TAG);
src->slConfig->timestampResolution = 1000;
if (!src->decoderConfig) src->decoderConfig = (GF_DecoderConfig *) gf_odf_desc_new(GF_ODF_DCD_TAG);
src->decoderConfig->streamType = GF_STREAM_SCENE;
src->decoderConfig->objectTypeIndication = 1;
e = GF_OK;
state = end = 0;
curLine = 0;
au = NULL;
com = NULL;
italic = underlined = bold = 0;
inf = NULL;
while (1) {
char *sOK = fgets(szLine, 2048, srt_in);
if (sOK) REM_TRAIL_MARKS(szLine, "\r\n\t ")
if (!sOK || !strlen(szLine)) {
state = 0;
if (au) {
/*if italic or underscore do it*/
if (font && (italic || underlined || bold)) {
com = gf_sg_command_new(ctx->scene_graph, GF_SG_FIELD_REPLACE);
com->node = font;
gf_node_register(font, NULL);
inf = gf_sg_command_field_new(com);
inf->fieldIndex = style.fieldIndex;
inf->fieldType = style.fieldType;
inf->field_ptr = gf_sg_vrml_field_pointer_new(style.fieldType);
sfstr = (SFString *)inf->field_ptr;
if (bold && italic && underlined) sfstr->buffer = gf_strdup("BOLDITALIC UNDERLINED");
else if (italic && underlined) sfstr->buffer = gf_strdup("ITALIC UNDERLINED");
else if (bold && underlined) sfstr->buffer = gf_strdup("BOLD UNDERLINED");
else if (underlined) sfstr->buffer = gf_strdup("UNDERLINED");
else if (bold && italic) sfstr->buffer = gf_strdup("BOLDITALIC");
else if (bold) sfstr->buffer = gf_strdup("BOLD");
else sfstr->buffer = gf_strdup("ITALIC");
gf_list_add(au->commands, com);
}
au = gf_sm_stream_au_new(srt, end, 0, 1);
com = gf_sg_command_new(ctx->scene_graph, GF_SG_FIELD_REPLACE);
com->node = text;
gf_node_register(text, NULL);
inf = gf_sg_command_field_new(com);
inf->fieldIndex = string.fieldIndex;
inf->fieldType = string.fieldType;
inf->field_ptr = gf_sg_vrml_field_pointer_new(string.fieldType);
gf_list_add(au->commands, com);
/*reset font styles so that all AUs are true random access*/
if (font) {
com = gf_sg_command_new(ctx->scene_graph, GF_SG_FIELD_REPLACE);
com->node = font;
gf_node_register(font, NULL);
inf = gf_sg_command_field_new(com);
inf->fieldIndex = style.fieldIndex;
inf->fieldType = style.fieldType;
inf->field_ptr = gf_sg_vrml_field_pointer_new(style.fieldType);
gf_list_add(au->commands, com);
}
au = NULL;
}
inf = NULL;
if (!sOK) break;
continue;
}
switch (state) {
case 0:
if (sscanf(szLine, "%u", &line) != 1) {
GF_LOG(GF_LOG_ERROR, GF_LOG_PARSER, ("[srt->bifs] bad frame format (src: %s)\n", szLine));
e = GF_CORRUPTED_DATA;
goto exit;
}
if (line != curLine + 1) {
GF_LOG(GF_LOG_ERROR, GF_LOG_PARSER, ("[srt->bifs] bad frame: previous %d - current %d (src: %s)\n", curLine, line, szLine));
e = GF_CORRUPTED_DATA;
goto exit;
}
curLine = line;
state = 1;
break;
case 1:
if (sscanf(szLine, "%u:%u:%u,%u --> %u:%u:%u,%u", &sh, &sm, &ss, &sms, &eh, &em, &es, &ems) != 8) {
GF_LOG(GF_LOG_ERROR, GF_LOG_PARSER, ("[srt->bifs] bad frame %u (src: %s)\n", curLine, szLine));
e = GF_CORRUPTED_DATA;
goto exit;
}
start = (3600*sh + 60*sm + ss)*1000 + sms;
if (start<end) {
GF_LOG(GF_LOG_WARNING, GF_LOG_PARSER, ("[srt->bifs] corrupted frame starts before end of previous one (SRT Frame %d) - adjusting time stamps\n", curLine));
start = end;
}
end = (3600*eh + 60*em + es)*1000 + ems;
/*make stream start at 0 by inserting a fake AU*/
if ((curLine==1) && start>0) {
au = gf_sm_stream_au_new(srt, 0, 0, 1);
com = gf_sg_command_new(ctx->scene_graph, GF_SG_FIELD_REPLACE);
com->node = text;
gf_node_register(text, NULL);
inf = gf_sg_command_field_new(com);
inf->fieldIndex = string.fieldIndex;
inf->fieldType = string.fieldType;
inf->field_ptr = gf_sg_vrml_field_pointer_new(string.fieldType);
gf_list_add(au->commands, com);
}
au = gf_sm_stream_au_new(srt, start, 0, 1);
com = NULL;
state = 2;
italic = underlined = bold = 0;
break;
default:
ptr = szLine;
/*FIXME - other styles posssibles ??*/
while (1) {
if (!strnicmp(ptr, "<i>", 3)) {
italic = 1;
ptr += 3;
}
else if (!strnicmp(ptr, "<u>", 3)) {
underlined = 1;
ptr += 3;
}
else if (!strnicmp(ptr, "<b>", 3)) {
bold = 1;
ptr += 3;
}
else
break;
}
/*if style remove end markers*/
while ((strlen(ptr)>4) && (ptr[strlen(ptr) - 4] == '<') && (ptr[strlen(ptr) - 1] == '>')) {
ptr[strlen(ptr) - 4] = 0;
}
if (!com) {
com = gf_sg_command_new(ctx->scene_graph, GF_SG_FIELD_REPLACE);
com->node = text;
gf_node_register(text, NULL);
inf = gf_sg_command_field_new(com);
inf->fieldIndex = string.fieldIndex;
inf->fieldType = string.fieldType;
inf->field_ptr = gf_sg_vrml_field_pointer_new(string.fieldType);
gf_list_add(au->commands, com);
}
assert(inf);
gf_sg_vrml_mf_append(inf->field_ptr, GF_SG_VRML_MFSTRING, (void **) &sfstr);
len = 0;
for (i=0; i<strlen(ptr); i++) {
/*FIXME - UTF16 support !!*/
if (ptr[i] & 0x80) {
/*non UTF8 (likely some win-CP)*/
if ((ptr[i+1] & 0xc0) != 0x80) {
szText[len] = 0xc0 | ( (ptr[i] >> 6) & 0x3 );
len++;
ptr[i] &= 0xbf;
}
/*we only handle UTF8 chars on 2 bytes (eg first byte is 0b110xxxxx)*/
else if ((ptr[i] & 0xe0) == 0xc0) {
szText[len] = ptr[i];
len++;
i++;
}
}
szText[len] = ptr[i];
len++;
}
szText[len] = 0;
sfstr->buffer = gf_strdup(szText);
break;
}