You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
101 lines
3.3 KiB
101 lines
3.3 KiB
/*-------------------------------------------------------------------------- |
|
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, |
|
CODEC_TYPE_MAX = CODEC_TYPE_MPEG2 |
|
}; |
|
|
|
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 */
|
|
|