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- =====================================
- QUALCOMM PureVoice Windows SDK v2.1
- =====================================
-
- This QUALCOMM PureVoice SDK provides High level API's and Mid level API's
- that manipulates the wave and PureVoice files for 32-bit system(Win95,
- WIN98, NT 4.0).
-
-
- High Level
- * Converts a wave file (8-kHz, 16-bit PCM) into PureVoice(.qcp)
- file and vice versa as well as memory based conversion.
-
-
- Mid Level
- * Opens .qcp file in either READ or WRITE mode
- * Closes .qcp file
- * Reads blocks of PureVoice data and decodes to linear 8-kHz, 16-bit PCM
- samples.
- * Writes blocks of PCM data into PureVoice format after encoding.
- * Retrieves a length of file in blocks.
- * Retrieves ablock size in milliseconds.
-
- =========
- Content
- =========
- * readme.txt (this file)
-
- Files for Qualcomm PureVoice Library (QPL):
- * Qpl.dll - PureVoice libraray
- * Qpl.lib - Import LIB for QPl.dll
- * Qpl.h - Contains the necessary defines and COM classes.
- * QplCom.h - Contains basic COM defines/functions and other misc
- defines for Qualcomm PureVoice Library.
-
- A sample program consists of Microsoft VC++ 6 project:
- * test.cpp - Sample source code
- * test.dsp - Project file
- * test.dsw - Project file
- * test.wav - Sample .WAV input file
-
- Command line wav<->qcp file conversion tool which can convert wave files
- into QCP files in different rate setttings, including a fixed fullrate:
- * PVConv.exe
-
- =========================================================
- Objects and their interfaces (see qpl.h for more detail)
- =========================================================
-
- QPLPvQcpFile
- |
- --> IQPLConvertFile [converts .qcp <-> .wav files]
- | |
- | |-ConvertFile convert qcp to wav and vice-versa
- | |-GetProgress get progress of conversion
- |
- --> IQPLQcpFile [reads or writes .qcp files]
- |-Open open file
- |-Close close file
- |-Read read and decode
- |-Write encode and write
- |-GetLength get file length in milliseconds
- |-GetBlockSize get size of a block in milliseconds
-
- ------------------------------------------------------------------------------
-
- QPLPvQcpFile1
- |
- --> IQPLConvertFile1 [converts .qcp <-> .wav files]
- | |
- | |-ConvertFile convert qcp to wav and vice-versa
- | |-GetProgress get progress of conversion
- |
- --> IQPLQcpFile1 [reads or writes .qcp files]
- |-Open open file
- |-Close close file
- |-Read read and decode
- |-Write encode and write
- |-GetLength get file length in milliseconds
- |-GetBlockSize get size of a block in milliseconds
-
- Note:
-
- QPLPvQcpFile1 is exactly same as QPLPvQcpFile except that one can specify
- the encoding level to the following:
- - QPL_QCELP_FULL_MAX full max rate (variable rate 14000 bps max)
- - QPL_QCELP_FULL_FIXED full fixed rate (14000 bps)
- - QPL_QCELP_HALF_MAX half max rate (variable rate 6800 bps max)
- - QPL_QCELP_HALF_FULL half fixed rate (6800 bps)
- QPL_QCELP_FULL_MAX is default.
-
- ------------------------------------------------------------------------------
-
- QPLPvCodec
- |
- --> IQPLPvHrCodec [PureVoice Fixed Half Rate Codec (6800 bps)]
- |
- |-Reset initialize CODEC
- |-GetInfo get info on CODEC
- |-Convert encode or decode depending on mode set in Reset
-
- ------------------------------------------------------------------------------
-
- QPLPvCodec1
- |
- --> IQPLPvVrHrCodec [PureVoice Variable Half Rate Codec (Max 6800 bps)]
- |
- |-Reset initialize CODEC
- |-GetInfo get info on CODEC
- |-Convert encode or decode depending on mode set in Reset
-
- ------------------------------------------------------------------------------
-
- QPLPvCodec2
- |
- --> IQPLPvFrCodec [PureVoice Fixed Full Rate Codec (14000 bps)]
- |
- |-Reset initialize CODEC
- |-GetInfo get info on CODEC
- |-Convert encode or decode depending on mode set in Reset
-
- ------------------------------------------------------------------------------
-
- QPLPvCodec3
- |
- --> IQPLPvVrFrCodec [PureVoice Variable Full Rate Codec (Max 14000 bps)]
- |
- |-Reset initialize CODEC
- |-GetInfo get info on CODEC
- |-Convert encode or decode depending on mode set in Reset
-
- ------------------------------------------------------------------------------
-
- ==============================
- CHANGES SINCE 2.0
- ==============================
- Added validation of wave file. Accept 8000 Hz and 16-bit only.
-
- Switched descriptions for -e 2 and 3 to be correct for PVconv.exe
-
- Sets the avgBitsPerSec correctly for each mode(no longer fixed at 8000)
-
- Sets sizeInPackett in the 'vrat' chunk for fixed full-rate mode also to
- support CDMA MSM3100 and beyond VoiceMemo support.
-
- Added PVConv.exe example with SDK, which is a command line interface
- which converts PCM (mono, 8 kHz, 16-bit) wave file to PureVoice qcp file using
- different encoding mode(Variable Rate, Full Fixed, Half Max Variable and
- Half Fixed) and vice-versa.
-
- ==============================
- FAQ
- ==============================
- Q: There is one extra byte at the end of the file.
- A: This is by design. The QCP file will always word aligned. So if the real
- size happens to be odd size, then we'll add a pad byte.
-
- Q: What's wrong with my test code?
- if ( S_OK != pfn( CLSID_QPLPvCodec3, IID_IQPLPvFrCodec,
- (void**)&m_pureVoice ) )
- {
- printf("Can't Create Instance\n");
- return;
- }
- A: IID_IQPLPvFrCodec must be IID_IQPLPvVrFrCodec and make sure m_pureVoice is
- a type of IQPLPvVrFrCodec*
-
-
- ==============================
- LICENSE AND LEGAL INFORMATION
- ==============================
-
- QUALCOMM Incorporated
-
-
- License Terms for the freeware versions of the PureVoice Player/Recorder and PureVoice
- Converter for Windows/95, Windows/98, Windows/NT, Macintosh, and Solaris platforms, the
- PureVoice ActiveX Plug-in for Windows/95, Windows/98, and Windows/NT, and the PureVoice
- encoder and decoder for SCO Unix, (collectively the "QUALCOMM PureVoice Software").
-
-
- QUALCOMM grants to the user a nonexclusive license to use this PureVoice software
- solely for user's own personal or internal business purposes. The user may not
- commercially distribute, sublicense, resell, or otherwise transfer for any
- consideration, or reproduce for any such purposes, the PureVoice software or any
- modification or derivation thereof, either alone or in conjunction with any other
- product or program. Further, the user may not modify the PureVoice software.
-
-
- THE PUREVOICE SOFTWARE IS PROVIDED TO THE USER ''AS IS.'' QUALCOMM MAKES NO WARRANTIES,
- EITHER EXPRESS OR IMPLIED, WITH RESPECT TO THE PUREVOICE SOFTWARE AND/OR ASSOCIATED
- MATERIALS PROVIDED TO THE USER, INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR AGAINST INFRINGEMENT. QUALCOMM
- DOES NOT WARRANT THAT THE FUNCTIONS CONTAINED IN THE SOFTWARE WILL MEET YOUR REQUIREMENTS,
- OR THAT THE OPERATION OF THE SOFTWARE WILL BE UNINTERRUPTED OR ERROR-FREE, OR THAT DEFECTS
- IN THE SOFTWARE WILL BE CORRECTED. FURTHERMORE, QUALCOMM DOES NOT WARRANT OR MAKE ANY
- REPRESENTATIONS REGARDING THE USE OR THE RESULTS OF THE USE OF THE SOFTWARE OR ANY
- DOCUMENTATION PROVIDED THEREWITH IN TERMS OF THEIR CORRECTNESS, ACCURACY, RELIABILITY,
- OR OTHERWISE. NO ORAL OR WRITTEN INFORMATION OR ADVICE GIVEN BY QUALCOMM OR A QUALCOMM
- AUTHORIZED REPRESENTATIVE SHALL CREATE A WARRANTY OR IN ANY WAY INCREASE THE SCOPE OF T
- HIS WARRANTY.
-
-
- LIMITATION OF LIABILITY - QUALCOMM IS NOT LIABLE FOR ANY CLAIMS OR DAMAGES WHATSOEVER,
- INCLUDING PROPERTY DAMAGE, PERSONAL INJURY, INTELLECTUAL PROPERTY INFRINGEMENT, LOSS OF
- PROFITS, OR INTERRUPTION OF BUSINESS, OR FOR ANY SPECIAL, CONSEQUENTIAL OR INCIDENTAL
- DAMAGES, HOWEVER CAUSED, WHETHER ARISING OUT OF BREACH OF WARRANTY, CONTRACT, TORT
- (INCLUDING NEGLIGENCE), STRICT LIABILITY, OR OTHERWISE.
-
-
- Copyright ⌐ 2001 by QUALCOMM Incorporated. All rights reserved.
-
-
- PureVoice(TM) is a registered trademark of QUALCOMM Incorporated.
- QUALCOMM and Eudora are registered trademarks and QUALCOMM is a registered service
- mark of QUALCOMM Incorporated.
- Windows is a trademark of Microsoft Corporation registered in the U.S. and other countries.
-
-
- All other trademarks and service marks are the property of their respective owners.
-
-
- Feb. 2001
-
-
-
-