mirror of https://git.ffmpeg.org/ffmpeg.git
66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
|
/*
|
||
|
|
* Apple HTTP Live Streaming Sample Encryption/Decryption
|
||
|
|
*
|
||
|
|
* Copyright (c) 2021 Nachiket Tarate
|
||
|
|
*
|
||
|
|
* This file is part of FFmpeg.
|
||
|
|
*
|
||
|
|
* FFmpeg 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 2.1 of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* FFmpeg 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 FFmpeg; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @file
|
||
|
|
* Apple HTTP Live Streaming Sample Encryption
|
||
|
|
* https://developer.apple.com/library/ios/documentation/AudioVideo/Conceptual/HLS_Sample_Encryption
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef AVFORMAT_HLS_SAMPLE_ENCRYPTION_H
|
||
|
|
#define AVFORMAT_HLS_SAMPLE_ENCRYPTION_H
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#include "avformat.h"
|
||
|
|
#include "libavcodec/avcodec.h"
|
||
|
|
|
||
|
|
#include "libavutil/aes.h"
|
||
|
|
|
||
|
|
#define HLS_MAX_ID3_TAGS_DATA_LEN 138
|
||
|
|
#define HLS_MAX_AUDIO_SETUP_DATA_LEN 10
|
||
|
|
|
||
|
|
typedef struct HLSCryptoContext {
|
||
|
|
struct AVAES *aes_ctx;
|
||
|
|
uint8_t key[16];
|
||
|
|
uint8_t iv[16];
|
||
|
|
} HLSCryptoContext;
|
||
|
|
|
||
|
|
typedef struct HLSAudioSetupInfo {
|
||
|
|
enum AVCodecID codec_id;
|
||
|
|
uint32_t codec_tag;
|
||
|
|
uint16_t priming;
|
||
|
|
uint8_t version;
|
||
|
|
uint8_t setup_data_length;
|
||
|
|
uint8_t setup_data[HLS_MAX_AUDIO_SETUP_DATA_LEN];
|
||
|
|
} HLSAudioSetupInfo;
|
||
|
|
|
||
|
|
|
||
|
|
void ff_hls_senc_read_audio_setup_info(HLSAudioSetupInfo *info, const uint8_t *buf, size_t size);
|
||
|
|
|
||
|
|
int ff_hls_senc_parse_audio_setup_info(AVStream *st, HLSAudioSetupInfo *info);
|
||
|
|
|
||
|
|
int ff_hls_senc_decrypt_frame(enum AVCodecID codec_id, HLSCryptoContext *crypto_ctx, AVPacket *pkt);
|
||
|
|
|
||
|
|
#endif /* AVFORMAT_HLS_SAMPLE_ENCRYPTION_H */
|
||
|
|
|