Esempi in C++ (Cpp) per gf_isom_cenc_samp_aux_info_del

Esempio n. 1

File: box_code_drm.c Progetto: jayden717/ccextractor

void senc_del(GF_Box *s)
{
	GF_SampleEncryptionBox *ptr = (GF_SampleEncryptionBox *)s;
	while (gf_list_count(ptr->samp_aux_info)) {
		GF_CENCSampleAuxInfo *sai = (GF_CENCSampleAuxInfo *)gf_list_get(ptr->samp_aux_info, 0);
		if (sai) gf_isom_cenc_samp_aux_info_del(sai);
		gf_list_rem(ptr->samp_aux_info, 0);
	}
	if (ptr->samp_aux_info) gf_list_del(ptr->samp_aux_info);
	gf_free(s);
}

Esempio n. 2

File: drm_sample.c Progetto: HungMingWu/gpac

GF_EXPORT
GF_Err gf_isom_cenc_get_sample_aux_info(GF_ISOFile *the_file, u32 trackNumber, u32 sampleNumber, GF_CENCSampleAuxInfo **sai, u32 *container_type)
{
	GF_TrackBox *trak;
	GF_SampleTableBox *stbl;
	GF_Box *a_box = NULL;
	u32 i, type;
	GF_CENCSampleAuxInfo *a_sai;
	u8 IV_size;

	trak = gf_isom_get_track_from_file(the_file, trackNumber);
	if (!trak) return GF_BAD_PARAM;
	stbl = trak->Media->information->sampleTable;
	if (!stbl)
		return GF_BAD_PARAM;

	type = 0;
	for (i = 0; i < gf_list_count(stbl->other_boxes); i++) {
		a_box = (GF_Box *)gf_list_get(stbl->other_boxes, i++);
		if ((a_box->type == GF_ISOM_BOX_TYPE_UUID) && (((GF_UUIDBox *)a_box)->internal_4cc == GF_ISOM_BOX_UUID_PSEC)) {
			type = GF_ISOM_BOX_UUID_PSEC;
			break;
		}
		else if (a_box->type == GF_ISOM_BOX_TYPE_SENC) {
			type = GF_ISOM_BOX_TYPE_SENC;
			break;
		}
	}

	if (container_type) *container_type = type;

	if (!sai) return GF_OK; /*we need only container_type*/

	if (*sai) {
		gf_isom_cenc_samp_aux_info_del(*sai);
		*sai = NULL;
	}

	gf_isom_get_sample_cenc_info_ex(trak, NULL, sampleNumber, NULL, &IV_size, NULL);
	if (!IV_size) {
		GF_SAFEALLOC( (*sai),  GF_CENCSampleAuxInfo);
		return GF_OK;
	}

	/*get sample auxiliary information by saiz/saio rather than by parsing senc box*/
	if (gf_isom_cenc_has_saiz_saio_track(stbl)) {
		return gf_isom_cenc_get_sai_by_saiz_saio(trak->Media, sampleNumber, IV_size, sai);
	}

	a_sai = NULL;
	switch (type) {
	case GF_ISOM_BOX_UUID_PSEC:
		if (a_box)
			a_sai = (GF_CENCSampleAuxInfo *)gf_list_get(((GF_PIFFSampleEncryptionBox *)a_box)->samp_aux_info, sampleNumber-1);
		break;
	case GF_ISOM_BOX_TYPE_SENC:
		if (a_box)
			a_sai = (GF_CENCSampleAuxInfo *)gf_list_get(((GF_SampleEncryptionBox *)a_box)->samp_aux_info, sampleNumber-1);
		break;
	}
	if (!a_sai)
		return GF_NOT_SUPPORTED;

	GF_SAFEALLOC( (*sai),  GF_CENCSampleAuxInfo);
	if (a_box) {
		memmove((*sai)->IV, a_sai->IV, 16);
		(*sai)->subsample_count = a_sai->subsample_count;
		(*sai)->subsamples = (GF_CENCSubSampleEntry*)gf_malloc(sizeof(GF_CENCSubSampleEntry)*(*sai)->subsample_count);
		memmove((*sai)->subsamples, a_sai->subsamples, sizeof(GF_CENCSubSampleEntry)*(*sai)->subsample_count);
	}

	return GF_OK;
}