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diff --git a/tstools/DtsEdit/src/gpac/ismacryp.h b/tstools/DtsEdit/src/gpac/ismacryp.h
new file mode 100644
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+++ b/tstools/DtsEdit/src/gpac/ismacryp.h
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+/*
+ *			GPAC - Multimedia Framework C SDK
+ *
+ *			Copyright (c) Jean Le Feuvre 2000-2005 
+ *					All rights reserved
+ *
+ *  This file is part of GPAC / Authoring Tools sub-project
+ *
+ *  GPAC is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *   
+ *  GPAC is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *   
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; see the file COPYING.  If not, write to
+ *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 
+ *
+ */
+
+#ifndef _GF_ISMACRYP_H_
+#define _GF_ISMACRYP_H_
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <gpac/isomedia.h>
+
+enum
+{
+	/*no selective encryption*/
+	GF_ISMACRYP_SELENC_NONE = 0,
+	/*only encrypts RAP samples*/
+	GF_ISMACRYP_SELENC_RAP = 1,
+	/*only encrypts non-RAP samples*/
+	GF_ISMACRYP_SELENC_NON_RAP = 2,
+	/*selective encryption of random samples*/
+	GF_ISMACRYP_SELENC_RAND = 3,
+	/*selective encryption of a random sample in given range*/
+	GF_ISMACRYP_SELENC_RAND_RANGE = 4,
+	/*selective encryption of first sample in given range*/
+	GF_ISMACRYP_SELENC_RANGE = 5,
+	/*encryption of all samples but the preview range*/
+	GF_ISMACRYP_SELENC_PREVIEW = 6,
+};
+
+typedef struct
+{
+	/*0: ISMACryp - 1: OMA DRM*/
+	u32 enc_type;
+	u32 trackID;
+	unsigned char key[16];
+	unsigned char salt[16];
+
+	/*the rest is only used for encryption*/
+	char KMS_URI[5000];
+	char Scheme_URI[5000];
+	/*selecive encryption type*/
+	u32 sel_enc_type;
+	u32 sel_enc_range;
+	/*IPMP signaling: 0: none, 1: IPMP, 2: IPMPX
+	when IPMP signaling is enabled, the OD stream will be updated with
+	IPMP Update commands*/
+	u32 ipmp_type;
+	/*if not set and IPMP enabled, defaults to TrackID*/
+	u32 ipmp_desc_id;
+
+	/*OMA extensions*/
+	/*0: none, 1: AES CBC, 2: AES CTR*/
+	u8 encryption;
+	char TextualHeaders[5000];
+	u32 TextualHeadersLen;
+	char TransactionID[17];
+
+} GF_TrackCryptInfo;
+
+/*encrypts track - logs, progress: info callbacks, NULL for stdout*/
+GF_Err gf_ismacryp_encrypt_track(GF_ISOFile *mp4, GF_TrackCryptInfo *tci, void (*progress)(void *cbk, u32 done, u32 total), void *cbk);
+
+/*decrypts track - logs, progress: info callbacks, NULL for stdout*/
+GF_Err gf_ismacryp_decrypt_track(GF_ISOFile *mp4, GF_TrackCryptInfo *tci, void (*progress)(void *cbk, u32 done, u32 total), void *cbk);
+
+/*decrypt a file 
+@drm_file: location of DRM data (cf MP4Box doc).
+@LogMsg: redirection for message or NULL for stdout
+*/
+GF_Err gf_ismacryp_decrypt_file(GF_ISOFile *mp4file, const char *drm_file);
+
+/*Crypt a the file 
+@drm_file: location of DRM data.
+@LogMsg: redirection for message or NULL for stdout
+*/
+GF_Err gf_ismacryp_crypt_file(GF_ISOFile *mp4file, const char *drm_file);
+
+/*loads key and salt from a LOCAL gpac-DRM file (cf MP4Box doc)*/
+GF_Err gf_ismacryp_gpac_get_info(u32 stream_id, char *drm_file, char *key, char *salt);
+
+/*loads key and salt for MPEG4IP protected files*/
+Bool gf_ismacryp_mpeg4ip_get_info(char *kms_uri, char *key, char *salt);
+
+/*computes file hash. If file is ISO-based, computre hash according to OMA (P)DCF (without MutableDRMInformation box)*/
+GF_Err gf_media_get_file_hash(const char *file, u8 hash[20]);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif	/*_GF_ISMACRYP_H_*/
+