/*-------------------------------------------------------------------------- | |
Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. | |
Redistribution and use in source and binary forms, with or without | |
modification, are permitted provided that the following conditions are met: | |
* Redistributions of source code must retain the above copyright | |
notice, this list of conditions and the following disclaimer. | |
* Redistributions in binary form must reproduce the above copyright | |
notice, this list of conditions and the following disclaimer in the | |
documentation and/or other materials provided with the distribution. | |
* Neither the name of Code Aurora nor | |
the names of its contributors may be used to endorse or promote | |
products derived from this software without specific prior written | |
permission. | |
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
--------------------------------------------------------------------------*/ | |
#ifndef FRAMEPARSER_H | |
#define FRAMEPARSER_H | |
#include "OMX_Core.h" | |
#include "OMX_QCOMExtns.h" | |
#include "h264_utils.h" | |
//#include <stdlib.h> | |
enum codec_type | |
{ | |
CODEC_TYPE_MPEG4 = 0, | |
CODEC_TYPE_DIVX = 0, | |
CODEC_TYPE_H263 = 1, | |
CODEC_TYPE_H264 = 2, | |
CODEC_TYPE_VC1 = 3, | |
CODEC_TYPE_MPEG2 = 4, | |
#ifdef _MSM8974_ | |
CODEC_TYPE_VP8 = 5, | |
CODEC_TYPE_MAX = CODEC_TYPE_VP8 | |
#else | |
CODEC_TYPE_MAX = CODEC_TYPE_MPEG2 | |
#endif | |
}; | |
enum state_start_code_parse | |
{ | |
A0, | |
A1, | |
A2, | |
A3, | |
A4, | |
A5 | |
}; | |
enum state_nal_parse | |
{ | |
NAL_LENGTH_ACC, | |
NAL_PARSING | |
}; | |
class frame_parse | |
{ | |
public: | |
H264_Utils *mutils; | |
int init_start_codes (codec_type codec_type_parse); | |
int parse_sc_frame (OMX_BUFFERHEADERTYPE *source, | |
OMX_BUFFERHEADERTYPE *dest , | |
OMX_U32 *partialframe); | |
int init_nal_length (unsigned int nal_length); | |
int parse_h264_nallength (OMX_BUFFERHEADERTYPE *source, | |
OMX_BUFFERHEADERTYPE *dest , | |
OMX_U32 *partialframe); | |
void flush (); | |
frame_parse (); | |
~frame_parse (); | |
private: | |
/*Variables for Start code based Parsing*/ | |
enum state_start_code_parse parse_state; | |
unsigned char *start_code; | |
unsigned char *mask_code; | |
unsigned char last_byte_h263; | |
unsigned char last_byte; | |
bool header_found; | |
bool skip_frame_boundary; | |
/*Variables for NAL Length Parsing*/ | |
enum state_nal_parse state_nal; | |
unsigned int nal_length; | |
unsigned int accum_length; | |
unsigned int bytes_tobeparsed; | |
/*Functions to support additional start code parsing*/ | |
void parse_additional_start_code(OMX_U8 *psource, OMX_U32 *parsed_length); | |
void check_skip_frame_boundary(OMX_U32 *partial_frame); | |
void update_skip_frame(); | |
}; | |
#endif /* FRAMEPARSER_H */ |