videoeditorengine/mp3aacManipLib/MP3Gain/inc/mpheader.h
branchRCL_3
changeset 3 e0b5df5c0969
parent 0 951a5db380a0
child 7 4c409de21d23
--- a/videoeditorengine/mp3aacManipLib/MP3Gain/inc/mpheader.h	Fri Jan 29 14:08:33 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,124 +0,0 @@
-/*
-* Copyright (c) 2010 Ixonos Plc.
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of the "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - Initial contribution
-*
-* Contributors:
-* Ixonos Plc
-*
-* Description:
-*
-*/
-
-
-/**************************************************************************
-  mpheader.h - MPEG-1 and MPEG-2 bit field (header) parsing functions.
-
-  Author(s): Juha Ojanpera
-  Copyright (c) 1999-2004 by Nokia Research Center, Speech and Audio Systems.
-  *************************************************************************/
-
-#ifndef MPHEADER_H_
-#define MPHEADER_H_
-
-/*-- Project Headers. --*/
-#include "mpaud.h"
-#include "mp3tables.h"
-#include "defines.h"
-
-/* Checks whether window switching is used in layer III. */
-inline BOOL win_switch(TGranule_Info *gr_info)
-{ return ((BOOL)(gr_info->flags & WINDOW_SWITCHING_FLAG)); }
-
-/* Checks whether short blocks are used in layer III. */
-inline BOOL short_block(TGranule_Info *gr_info)
-{ return ((gr_info->flags & 3) == 2); }
-
-/* Checks whether mixed blocks are present in layer III. */
-inline BOOL mixed_block(TGranule_Info *gr_info)
-{ return ((BOOL)(gr_info->flags & MIXED_BLOCK_FLAG)); }
-
-/* Checks whether 'scalefac_scale' bit is set in layer III. */
-inline BOOL scalefac_scale(TGranule_Info *gr_info)
-{ return ((BOOL)((gr_info->flags & SCALEFAC_SCALE) ? 1 : 0)); }
-
-/* Returns the status of 'pre_flag' bit of layer III. */
-inline BOOL pre_flag(TGranule_Info *gr_info)
-{ return ((BOOL)((gr_info->flags & PRE_FLAG) ? 1 : 0)); }
-
-/*-- Common header parsing functions. --*/
-
-/* MPEG-1 or MPEG-2 */
-inline int16 version(TMPEG_Header *mpheader)
-{return ((BOOL)((mpheader->header >> 19) & 1));}
-
-/* Checks whether the current stream is of type MPEG-2.5. */
-inline BOOL mp25version(TMPEG_Header *mpheader)
-{ return ((BOOL)((mpheader->header & 0x100000) ? FALSE : TRUE)); }
-
-/* Layer (1, 2 or 3) */
-inline int16 layer_number(TMPEG_Header *mpheader)
-{ return (int16)((4 - (mpheader->header >> 17) & 3)); }
-
-/* Checks if error protection is used in the bitstream. */
-inline BOOL error_protection(TMPEG_Header *mpheader)
-{ return (!((mpheader->header >> 16) & 1)); }
-
-/* Sampling frequency index */
-inline int16 sfreq(TMPEG_Header *mpheader)
-{ return (int16)((mpheader->header >> 10) & 3);}
-
-/* Checks whether padding bit is set. */
-inline BOOL padding(TMPEG_Header *mpheader)
-{ return (BOOL)((mpheader->header >> 9) & 1); }
-  
-/* Checks if private bit is set. */
-inline BOOL private_bit(TMPEG_Header *mpheader)
-{ return (BOOL)((mpheader->header >> 8) & 1); }
-  
-/* Mono, stereo, joint or dual */
-inline int16 mode(TMPEG_Header *mpheader)
-{ return (int16)((mpheader->header >> 6) & 3); }
-
-/* Value of mode extension field */
-inline int16 mode_extension(TMPEG_Header *mpheader)
-{ return (int16)((mpheader->header >> 4) & 3); }
-
-/* Checks whether copyright bit is set. */
-inline BOOL copyright(TMPEG_Header *mpheader)
-{ return (BOOL)((mpheader->header >> 3) & 1); }
-  
-/* Checks whether original bit. */
-inline BOOL original(TMPEG_Header *mpheader)
-{ return (BOOL)((mpheader->header >> 2) & 1); }
-
-/* Value of bitrate field */
-inline int16 bit_rate_idx(TMPEG_Header *mpheader) 
-{ return ((int16)((mpheader->header >> 12) & 0xF)); }
-
-/* Bitrate */
-inline int16 bit_rate(TMPEG_Header *mpheader)
-{ return (bitrate[version(mpheader)][(int16)((mpheader->header >> 12) & 0xF)]); }
-
-/* Number of channels; 1 for mono, 2 for stereo */
-inline int16 channels(TMPEG_Header *mpheader)
-{ return ((int16)((mode(mpheader) == MPG_MD_MONO) ? (int16)1 : (int16)2));}
-
-inline const int16 *GetBitRateTable(TMPEG_Header *mpheader)
-{ return (&bitrate[version(mpheader)][0]); }
-
-/* Sampling frequency */
-inline int32 frequency(TMPEG_Header *mpheader)
-{ return (s_freq[(mpheader->header & 0x100000) ? version(mpheader):2][sfreq(mpheader)]); }
-
-/* Frame length in milliseconds */
-inline int32 GetFrameTime(TMPEG_Header *mpheader)
-{ return (framelength[sfreq(mpheader) + (mp25version(mpheader)) * 3]); }
-
-#endif /* MPHEADER_H_ */