--- /dev/null
+/*\r
+ * GPAC - Multimedia Framework C SDK\r
+ *\r
+ * Copyright (c) Jean Le Feuvre 2000-2005 \r
+ * All rights reserved\r
+ *\r
+ * This file is part of GPAC / SL header file\r
+ *\r
+ * GPAC is free software; you can redistribute it and/or modify\r
+ * it under the terms of the GNU Lesser General Public License as published by\r
+ * the Free Software Foundation; either version 2, or (at your option)\r
+ * any later version.\r
+ * \r
+ * GPAC is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU Lesser General Public License for more details.\r
+ * \r
+ * You should have received a copy of the GNU Lesser General Public\r
+ * License along with this library; see the file COPYING. If not, write to\r
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. \r
+ *\r
+ */\r
+\r
+#ifndef _GF_SYNC_LAYER_H_\r
+#define _GF_SYNC_LAYER_H_\r
+\r
+#ifdef __cplusplus\r
+extern "C" {\r
+#endif\r
+\r
+ \r
+/*the Sync Layer config descriptor*/\r
+typedef struct\r
+{\r
+ /*base descriptor*/\r
+ u8 tag;\r
+\r
+ u8 predefined;\r
+ u8 useAccessUnitStartFlag;\r
+ u8 useAccessUnitEndFlag;\r
+ u8 useRandomAccessPointFlag;\r
+ u8 hasRandomAccessUnitsOnlyFlag;\r
+ u8 usePaddingFlag;\r
+ u8 useTimestampsFlag;\r
+ u8 useIdleFlag;\r
+ u8 durationFlag;\r
+ u32 timestampResolution;\r
+ u32 OCRResolution;\r
+ u8 timestampLength;\r
+ u8 OCRLength;\r
+ u8 AULength;\r
+ u8 instantBitrateLength;\r
+ u8 degradationPriorityLength;\r
+ u8 AUSeqNumLength;\r
+ u8 packetSeqNumLength;\r
+ u32 timeScale;\r
+ u16 AUDuration;\r
+ u16 CUDuration;\r
+ u64 startDTS;\r
+ u64 startCTS;\r
+} GF_SLConfig;\r
+\r
+/***************************************\r
+ SLConfig Tag\r
+***************************************/\r
+enum\r
+{\r
+ SLPredef_Null = 0x01,\r
+ SLPredef_MP4 = 0x02,\r
+ /*intern to GPAC, means NO SL at all (for streams unable to handle AU reconstruction a timing)*/\r
+ SLPredef_SkipSL = 0xF0\r
+};\r
+\r
+/*set SL predefined (assign all fields according to sl->predefined value)*/\r
+GF_Err gf_odf_slc_set_pref(GF_SLConfig *sl);\r
+\r
+\r
+typedef struct\r
+{\r
+ u8 accessUnitStartFlag;\r
+ u8 accessUnitEndFlag;\r
+ u8 paddingFlag;\r
+ u8 randomAccessPointFlag;\r
+ u8 OCRflag;\r
+ u8 idleFlag;\r
+ u8 decodingTimeStampFlag;\r
+ u8 compositionTimeStampFlag;\r
+ u8 instantBitrateFlag;\r
+ u8 degradationPriorityFlag;\r
+\r
+ u8 paddingBits;\r
+ u16 packetSequenceNumber;\r
+ u64 objectClockReference;\r
+ u16 AU_sequenceNumber;\r
+ u64 decodingTimeStamp;\r
+ u64 compositionTimeStamp;\r
+ u16 accessUnitLength;\r
+ u32 instantBitrate;\r
+ u16 degradationPriority;\r
+\r
+ /*this is NOT part of standard SL, only used internally: signals duration of access unit if known\r
+ this is usefull for streams with very random updates, to prevent buffering for instance a subtitle stream\r
+ which is likely to have no updates during the first minutes... expressed in media timescale*/\r
+ u32 au_duration;\r
+ /*ISMACryp extensions*/\r
+ u8 isma_encrypted;\r
+ u64 isma_BSO;\r
+} GF_SLHeader;\r
+\r
+\r
+/*packetize SL-PDU. If PDU is NULL or size 0, only writes the SL header*/\r
+void gf_sl_packetize(GF_SLConfig* slConfig, GF_SLHeader *Header, char *PDU, u32 size, char **outPacket, u32 *OutSize);\r
+/*gets SL header size in bytes*/\r
+u32 gf_sl_get_header_size(GF_SLConfig* slConfig, GF_SLHeader *Header);\r
+\r
+/*depacketize SL-PDU*/\r
+void gf_sl_depacketize(GF_SLConfig *slConfig, GF_SLHeader *Header, char *PDU, u32 PDULength, u32 *HeaderLen);\r
+\r
+\r
+#ifdef __cplusplus\r
+}\r
+#endif\r
+\r
+#endif /*_GF_SYNC_LAYER_H_*/\r
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