WsbMediaSegmentDecrypter.h

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/*****************************************************************
|
|   Wasabi - Marlin Media Segment Decrypter
|
|   $Id: WsbMediaSegmentDecrypter.h 12515 2016-06-22 21:20:22Z hwa $
|   Original author: Edin Hodzic ([email protected])
|
|   This software is provided to you pursuant to your agreement 
|   with Intertrust Technologies Corporation ("Intertrust").
|   This software may be used only in accordance with the terms 
|   of the agreement.
|
|   Copyright (c) 2014 by Intertrust. All rights reserved. 
|
****************************************************************/

#ifndef _WSB_MEDIA_SEGMENT_DECRYPTER_H_
#define _WSB_MEDIA_SEGMENT_DECRYPTER_H_

/*----------------------------------------------------------------------
|   includes
+---------------------------------------------------------------------*/
#include "WsbTypes.h"

/*----------------------------------------------------------------------
|   types
+---------------------------------------------------------------------*/
typedef struct {
    const char*  ext_x_key_line;
    unsigned int segment_number;
} WSB_MediaSegmentDecrypter_HlsInitData;

typedef struct {
    unsigned int      init_segment_size;
    const WSB_UInt8*  init_segment;
    WSB_UInt32        track_id;
} WSB_MediaSegmentDecrypter_Mp4CencInitData;

typedef enum {
    WSB_MEDIA_SEGMENT_DECRYPTER_TYPE_HLS = 0,
    WSB_MEDIA_SEGMENT_DECRYPTER_TYPE_MP4_CENC
} WSB_MediaSegmentDecrypterType;

typedef struct WSB_MediaSegmentDecrypter WSB_MediaSegmentDecrypter;

/*----------------------------------------------------------------------
|   prototypes
+---------------------------------------------------------------------*/
#if defined(__cplusplus)
extern "C" {
#endif

WSB_EXPORT WSB_Result
WSB_MediaSegmentDecrypter_Create(const char* source_url, 
                                 WSB_MediaSegmentDecrypterType type,
                                 WSB_MediaSegmentDecrypter** decrypter);

WSB_EXPORT WSB_Result
WSB_MediaSegmentDecrypter_Clone(WSB_MediaSegmentDecrypter* decrypter,
                                WSB_MediaSegmentDecrypter** cloned);

WSB_EXPORT WSB_Result
WSB_MediaSegmentDecrypter_Destroy(WSB_MediaSegmentDecrypter* decrypter);

WSB_EXPORT WSB_Result
WSB_MediaSegmentDecrypter_Init(WSB_MediaSegmentDecrypter* decrypter,
                               const void* init_data);

WSB_EXPORT WSB_Result
WSB_MediaSegmentDecrypter_Decrypt(WSB_MediaSegmentDecrypter* decrypter,
                                  const WSB_UInt8*           in,
                                  unsigned int               in_size,
                                  WSB_UInt8*                 out,
                                  unsigned int*              out_size);

#if defined(__cplusplus)
}
#endif

#endif // _WSB_MEDIA_SEGMENT_DECRYPTER_H_