GF_EXPORT
GF_Err gf_beng_save_context(GF_BifsEngine *codec, char * ctxFileName)
{
u32 d_mode, do_enc;
char szF[GF_MAX_PATH], *ext;
GF_Err e;
/*check if we dump to BT, XMT or encode to MP4*/
strcpy(szF, ctxFileName);
ext = strrchr(szF, '.');
d_mode = GF_SM_DUMP_BT;
do_enc = 0;
if (ext) {
if (!stricmp(ext, ".xmt") || !stricmp(ext, ".xmta")) d_mode = GF_SM_DUMP_XMTA;
else if (!stricmp(ext, ".mp4")) do_enc = 1;
ext[0] = 0;
}
if (do_enc) {
GF_ISOFile *mp4;
strcat(szF, ".mp4");
mp4 = gf_isom_open(szF, GF_ISOM_OPEN_WRITE, NULL);
e = gf_sm_encode_to_file(codec->ctx, mp4, NULL);
if (e) gf_isom_delete(mp4);
else gf_isom_close(mp4);
} else {
e = gf_sm_dump(codec->ctx, szF, d_mode);
}
return e;
}
void V4SceneManager::SaveFile(const char *path)
{
GF_SMEncodeOptions opts;
char rad_name[5000];
/* First dump the scene in a BT file */
strcpy(rad_name, "dump");
m_pSm->scene_graph->RootNode = NULL;
gf_sm_dump(m_pSm, rad_name, 0);
/* Then reload properly (overriding the current SceneManager)*/
GF_SceneLoader load;
memset(&load, 0, sizeof(GF_SceneLoader));
load.fileName = "dump.bt";
load.ctx = m_pSm;
gf_sm_load_init(&load);
gf_sm_load_run(&load);
gf_sm_load_done(&load);
/* Finally encode the file */
GF_ISOFile *mp4 = gf_isom_open(path, GF_ISOM_WRITE_EDIT, NULL);
m_pSm->max_node_id = gf_sg_get_max_node_id(m_pSm->scene_graph);
memset(&opts, 0, sizeof(opts));
opts.flags = GF_SM_LOAD_MPEG4_STRICT;
gf_sm_encode_to_file(m_pSm, mp4, &opts);
gf_isom_set_brand_info(mp4, GF_ISOM_BRAND_MP42, 1);
gf_isom_modify_alternate_brand(mp4, GF_ISOM_BRAND_ISOM, 1);
gf_isom_close(mp4);
}
void V4SceneGraph::SaveFile(const char *path)
{
char rad_name[5000];
strcpy(rad_name, "dump");
gf_sm_dump(m_pSm, rad_name, 0);
GF_ISOFile *mp4 = gf_isom_open(path, GF_ISOM_WRITE_EDIT, NULL);
m_pSm->max_node_id = gf_sg_get_max_node_id(m_pSm->scene_graph);
gf_sm_encode_to_file(m_pSm, mp4, "c:\\log.txt", NULL, GF_SM_LOAD_MPEG4_STRICT, 0);
gf_isom_close(mp4);
}
GF_EXPORT
GF_Err gf_seng_save_context(GF_SceneEngine *seng, char *ctxFileName)
{
#ifdef GPAC_DISABLE_SCENE_DUMP
return GF_NOT_SUPPORTED;
#else
u32 d_mode, do_enc;
char szF[GF_MAX_PATH], *ext;
GF_Err e;
/*check if we dump to BT, XMT or encode to MP4*/
ext = NULL;
if (ctxFileName) {
strcpy(szF, ctxFileName);
ext = strrchr(szF, '.');
}
d_mode = GF_SM_DUMP_BT;
do_enc = 0;
if (ext) {
if (!stricmp(ext, ".xmt") || !stricmp(ext, ".xmta")) d_mode = GF_SM_DUMP_XMTA;
else if (!stricmp(ext, ".mp4")) do_enc = 1;
ext[0] = 0;
}
if (do_enc) {
#ifndef GPAC_DISABLE_SCENE_ENCODER
GF_ISOFile *mp4;
strcat(szF, ".mp4");
mp4 = gf_isom_open(szF, GF_ISOM_OPEN_WRITE, NULL);
e = gf_sm_encode_to_file(seng->ctx, mp4, NULL);
if (e) gf_isom_delete(mp4);
else gf_isom_close(mp4);
#else
return GF_NOT_SUPPORTED;
#endif
} else {
e = gf_sm_dump(seng->ctx, ctxFileName ? szF : NULL, d_mode);
}
return e;
#endif
}
GF_Err encode_laser(GF_LoadCompare *lc, char *item_path, GF_ISOFile *mp4, GF_SMEncodeOptions *opts)
{
GF_Err e = GF_OK;
GF_SceneLoader load;
GF_SceneManager *ctx;
GF_SceneGraph *sg;
GF_StatManager *statsman = NULL;
memset(&load, 0, sizeof(GF_SceneLoader));
sg = gf_sg_new();
ctx = gf_sm_new(sg);
load.ctx = ctx;
load.fileName = item_path;
e = gf_sm_load_init(&load);
if (e) {
fprintf(stderr, "Error loading file %s\n", item_path);
} else {
e = gf_sm_load_run(&load);
if (e) {
fprintf(stderr, "Error loading file %s\n", item_path);
} else {
if (opts->auto_qant) {
if (lc->verbose) fprintf(stdout, "Analysing Scene for Automatic Quantization\n");
statsman = gf_sm_stats_new();
e = gf_sm_stats_for_scene(statsman, ctx);
if (!e) {
GF_SceneStatistics *stats = gf_sm_stats_get(statsman);
if (opts->resolution > (s32)stats->frac_res_2d) {
if (lc->verbose) fprintf(stdout, " Given resolution %d is (unnecessarily) too high, using %d instead.\n", opts->resolution, stats->frac_res_2d);
opts->resolution = stats->frac_res_2d;
} else if (stats->int_res_2d + opts->resolution <= 0) {
if (lc->verbose) fprintf(stdout, " Given resolution %d is too low, using %d instead.\n", opts->resolution, stats->int_res_2d - 1);
opts->resolution = 1 - stats->int_res_2d;
}
opts->coord_bits = stats->int_res_2d + opts->resolution;
if (lc->verbose) fprintf(stdout, " Coordinates & Lengths encoded using ");
if (opts->resolution < 0) {
if (lc->verbose) fprintf(stdout, "only the %d most significant bits (of %d).\n", opts->coord_bits, stats->int_res_2d);
} else {
if (lc->verbose) fprintf(stdout, "a %d.%d representation\n", stats->int_res_2d, opts->resolution);
}
if (lc->verbose) fprintf(stdout, " Matrix Scale & Skew Coefficients ");
if (opts->coord_bits < stats->scale_int_res_2d) {
opts->scale_bits = stats->scale_int_res_2d - opts->coord_bits;
if (lc->verbose) fprintf(stdout, "encoded using a %d.8 representation\n", stats->scale_int_res_2d);
} else {
opts->scale_bits = 0;
if (lc->verbose) fprintf(stdout, "not encoded.\n");
}
}
gf_sm_stats_del(statsman);
}
e = gf_sm_encode_to_file(ctx, mp4, opts);
if (e) {
fprintf(stderr, "Error while encoding mp4 file\n");
} else {
e = gf_isom_set_brand_info(mp4, GF_ISOM_BRAND_MP42, 1);
if (!e) e = gf_isom_modify_alternate_brand(mp4, GF_ISOM_BRAND_ISOM, 1);
}
gf_sm_load_done(&load);
}
}
gf_sm_del(ctx);
gf_sg_del(sg);
return e;
}
