103 lines
3.5 KiB
C++
Executable File
103 lines
3.5 KiB
C++
Executable File
/*--------------------------------------------------------------------------
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Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of The Linux Foundation nor
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the names of its contributors may be used to endorse or promote
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products derived from this software without specific prior written
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permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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--------------------------------------------------------------------------*/
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#ifndef FRAMEPARSER_H
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#define FRAMEPARSER_H
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#include "OMX_Core.h"
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#include "OMX_QCOMExtns.h"
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#include "h264_utils.h"
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//#include <stdlib.h>
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enum codec_type {
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CODEC_TYPE_MPEG4 = 0,
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CODEC_TYPE_DIVX = 0,
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CODEC_TYPE_H263 = 1,
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CODEC_TYPE_H264 = 2,
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CODEC_TYPE_VC1 = 3,
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CODEC_TYPE_MPEG2 = 4,
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#ifdef _MSM8974_
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CODEC_TYPE_VP8 = 5,
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CODEC_TYPE_HEVC,
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#endif
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CODEC_TYPE_MAX
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};
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enum state_start_code_parse {
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A0,
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A1,
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A2,
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A3,
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A4,
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A5
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};
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enum state_nal_parse {
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NAL_LENGTH_ACC,
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NAL_PARSING
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};
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class frame_parse
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{
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public:
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H264_Utils *mutils;
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int init_start_codes (codec_type codec_type_parse);
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int parse_sc_frame (OMX_BUFFERHEADERTYPE *source,
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OMX_BUFFERHEADERTYPE *dest ,
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OMX_U32 *partialframe);
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int init_nal_length (unsigned int nal_length);
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int parse_h264_nallength (OMX_BUFFERHEADERTYPE *source,
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OMX_BUFFERHEADERTYPE *dest ,
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OMX_U32 *partialframe);
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void flush ();
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frame_parse ();
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~frame_parse ();
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private:
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/*Variables for Start code based Parsing*/
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enum state_start_code_parse parse_state;
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unsigned char *start_code;
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unsigned char *mask_code;
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unsigned char last_byte_h263;
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unsigned char last_byte;
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bool header_found;
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bool skip_frame_boundary;
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/*Variables for NAL Length Parsing*/
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enum state_nal_parse state_nal;
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unsigned int nal_length;
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unsigned int accum_length;
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unsigned int bytes_tobeparsed;
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/*Functions to support additional start code parsing*/
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void parse_additional_start_code(OMX_U8 *psource, OMX_U32 *parsed_length);
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void check_skip_frame_boundary(OMX_U32 *partial_frame);
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void update_skip_frame();
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};
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#endif /* FRAMEPARSER_H */
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