blob: af5ae44db7e564feff920beb7a401075447848be [file] [log] [blame]
* Copyright (c) 2009-2011 Intel Corporation. All rights reserved.
* The source code contained or described herein and all documents
* related to the source code ("Material") are owned by Intel
* Corporation or its suppliers or licensors. Title to the
* Material remains with Intel Corporation or its suppliers and
* licensors. The Material contains trade secrets and proprietary
* and confidential information of Intel or its suppliers and
* licensors. The Material is protected by worldwide copyright and
* trade secret laws and treaty provisions. No part of the Material
* may be used, copied, reproduced, modified, published, uploaded,
* posted, transmitted, distributed, or disclosed in any way without
* Intel's prior express written permission.
* No license under any patent, copyright, trade secret or other
* intellectual property right is granted to or conferred upon you
* by disclosure or delivery of the Materials, either expressly, by
* implication, inducement, estoppel or otherwise. Any license
* under such intellectual property rights must be express and
* approved by Intel in writing.
#include "VideoDecoderAVC.h"
class VideoDecoderAVCSecure : public VideoDecoderAVC {
VideoDecoderAVCSecure(const char *mimeType);
virtual ~VideoDecoderAVCSecure();
virtual Decode_Status start(VideoConfigBuffer *buffer);
virtual void stop(void);
// data in the decoded buffer is all encrypted.
virtual Decode_Status decode(VideoDecodeBuffer *buffer);
enum {
MAX_NALU_NUMBER = 400, // > 4096/12
// Information of Network Abstraction Layer Unit
struct NaluInfo {
int32_t naluOffset; // offset of NAL unit in the firewalled buffer
int32_t naluLen; // length of NAL unit
int32_t naluHeaderLen; // length of NAL unit header
struct NaluMetadata {
NaluInfo *naluInfo;
int32_t naluNumber; // number of NAL units
struct NaluByteStream {
int32_t naluOffset;
int32_t naluLen;
int32_t streamPos;
uint8_t *byteStream; // 4 bytes of naluCount, 4 bytes of naluOffset, 4 bytes of naulLen, 4 bytes of naluHeaderLen, followed by naluHeaderData
int32_t naluCount;
virtual Decode_Status decodeSlice(vbp_data_h264 *data, uint32_t picIndex, uint32_t sliceIndex);
int32_t findNalUnitOffset(uint8_t *stream, int32_t offset, int32_t length);
Decode_Status copyNaluHeader(uint8_t *stream, NaluByteStream *naluStream);
Decode_Status parseAnnexBStream(uint8_t *stream, int32_t length, NaluByteStream *naluStream);
NaluMetadata mMetadata;
NaluByteStream mByteStream;
uint8_t *mNaluHeaderBuffer;
uint8_t *mInputBuffer;