ismacryp.c File Reference

#include <gpac/ismacryp.h>
#include <gpac/xml.h>
#include <gpac/base_coding.h>
#include <gpac/constants.h>
#include <gpac/crypt.h>
#include <math.h>

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Data Structures
struct	GF_CryptInfo

Functions
void	isma_ea_node_start (void *sax_cbck, const char *node_name, const char *name_space, const GF_XMLAttribute *attributes, u32 nb_attributes)
void	isma_ea_node_end (void *sax_cbck, const char *node_name, const char *name_space)
void	isma_ea_text (void *sax_cbck, const char *text, Bool is_cdata)
static void	del_crypt_info (GF_CryptInfo *info)
static GF_CryptInfo *	load_crypt_file (const char *file)
GF_Err	gf_ismacryp_gpac_get_info (u32 stream_id, char *drm_file, char *key, char *salt)
Bool	gf_ismacryp_mpeg4ip_get_info (char *kms_uri, char *key, char *salt)
static void	isma_resync_IV (GF_Crypt *mc, u64 BSO, char *salt)
GF_Err	gf_ismacryp_decrypt_track (GF_ISOFile *mp4, GF_TrackCryptInfo *tci, void(*progress)(void *cbk, u64 done, u64 total), void *cbk)
GF_Err	gf_ismacryp_encrypt_track (GF_ISOFile *mp4, GF_TrackCryptInfo *tci, void(*progress)(void *cbk, u64 done, u64 total), void *cbk)
static void	cenc_resync_IV (GF_Crypt *mc, char IV[16], u64 BSO, u8 IV_size, Bool isNewSample)
static GF_Err	gf_cenc_encrypt_sample_ctr (GF_Crypt *mc, GF_ISOSample *samp, Bool is_nalu_video, u32 nalu_size_length, char IV[16], u32 IV_size, char **sai, u32 *saiz, u32 bytes_in_nalhr)
static GF_Err	gf_cenc_encrypt_sample_cbc (GF_Crypt *mc, GF_ISOSample *samp, Bool is_nalu_video, u32 nalu_size_length, char IV[16], u32 IV_size, char **sai, u32 *saiz, u32 bytes_in_nalhr)
GF_Err	gf_cenc_encrypt_track (GF_ISOFile *mp4, GF_TrackCryptInfo *tci, void(*progress)(void *cbk, u64 done, u64 total), void *cbk)
GF_Err	gf_cenc_decrypt_track (GF_ISOFile *mp4, GF_TrackCryptInfo *tci, void(*progress)(void *cbk, u64 done, u64 total), void *cbk)
GF_Err	gf_decrypt_file (GF_ISOFile *mp4, const char *drm_file)
static GF_Err	gf_cenc_parse_drm_system_info (GF_ISOFile *mp4, const char *drm_file)
GF_Err	gf_crypt_file (GF_ISOFile *mp4, const char *drm_file)

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Data Structure Documentation

struct GF_CryptInfo

Collaboration diagram for GF_CryptInfo:

Data Fields
GF_List *	tcis
Bool	has_common_key
Bool	in_text_header
u32	crypt_type

Function Documentation

void isma_ea_node_start	(	void *	sax_cbck,
		const char *	node_name,
		const char *	name_space,
		const GF_XMLAttribute *	attributes,
		u32	nb_attributes
	)

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void isma_ea_node_end	(	void *	sax_cbck,
		const char *	node_name,
		const char *	name_space
	)

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void isma_ea_text	(	void *	sax_cbck,
		const char *	text,
		Bool	is_cdata
	)

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static void del_crypt_info ( GF_CryptInfo *  info )

static

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static GF_CryptInfo* load_crypt_file ( const char *  file )

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GF_Err gf_ismacryp_gpac_get_info	(	u32	stream_id,
		char *	drm_file,
		char *	key,
		char *	salt
	)

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Bool gf_ismacryp_mpeg4ip_get_info	(	char *	kms_uri,
		char *	key,
		char *	salt
	)

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static void isma_resync_IV ( GF_Crypt *  mc, u64  BSO, char *  salt  )

static

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GF_Err gf_ismacryp_decrypt_track	(	GF_ISOFile *	mp4,
		GF_TrackCryptInfo *	tci,
		void(*)(void *cbk, u64 done, u64 total)	progress,
		void *	cbk
	)

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GF_Err gf_ismacryp_encrypt_track	(	GF_ISOFile *	mp4,
		GF_TrackCryptInfo *	tci,
		void(*)(void *cbk, u64 done, u64 total)	progress,
		void *	cbk
	)

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static void cenc_resync_IV ( GF_Crypt *  mc, char  IV[16], u64  BSO, u8  IV_size, Bool  isNewSample  )

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static GF_Err gf_cenc_encrypt_sample_ctr ( GF_Crypt *  mc, GF_ISOSample *  samp, Bool  is_nalu_video, u32  nalu_size_length, char  IV[16], u32  IV_size, char **  sai, u32 *  saiz, u32  bytes_in_nalhr  )

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static GF_Err gf_cenc_encrypt_sample_cbc ( GF_Crypt *  mc, GF_ISOSample *  samp, Bool  is_nalu_video, u32  nalu_size_length, char  IV[16], u32  IV_size, char **  sai, u32 *  saiz, u32  bytes_in_nalhr  )

static

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GF_Err gf_cenc_encrypt_track	(	GF_ISOFile *	mp4,
		GF_TrackCryptInfo *	tci,
		void(*)(void *cbk, u64 done, u64 total)	progress,
		void *	cbk
	)

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GF_Err gf_cenc_decrypt_track	(	GF_ISOFile *	mp4,
		GF_TrackCryptInfo *	tci,
		void(*)(void *cbk, u64 done, u64 total)	progress,
		void *	cbk
	)

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GF_Err gf_decrypt_file	(	GF_ISOFile *	mp4,
		const char *	drm_file
	)

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static GF_Err gf_cenc_parse_drm_system_info ( GF_ISOFile *  mp4, const char *  drm_file  )

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GF_Err gf_crypt_file	(	GF_ISOFile *	mp4,
		const char *	drm_file
	)

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