Intel® Integrated Performance Primitives
G.722.1 for Linux*

Disclaimer
License Definitions
Overview
System Requirements
Package Contents
Installation
How to Build Source Code
Running the Software
Technical Support and Feedback
 

Disclaimer

INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL® PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTEL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.

Intel products are not intended for use in medical, life saving, life sustaining, critical control or safety systems, or in nuclear facility applications. Intel may make changes to specifications and product descriptions at anytime, without notice.

License Definitions

By downloading and installing this sample, you hereby agree that the accompanying Materials are being provided to you under the terms and conditions of the End User License Agreement for the Intel® Integrated Performance Primitives product previously accepted by you. Please refer to the file ipplic.htm for more information.

G.722.1 are international standards promoted by ITU-T (http://www.itu.int/publications/itut.html) and other organizations. Implementations of these standards, or the standard enabled platforms may require licenses from various entities, including Intel Corporation.

Overview

The multi-thread encoder and decoder samples fully compliant with ITU-T G.722.1 recommendation are included which has been implemented using Intel® Integrated Performance Primitives Speech Coding functions.  

To demonstrate that the codec implementation is thread-safe, the following procedure is performed: each thread processes its own copy of an input file independently, then the results are compared - if they are not identical an error is reported.

Note: this model differs from the model where many threads process the same stream in parallel, therefore it should not be expected that the given codec runs faster in the multi-threaded mode than it runs in the single-thread mode.

Additional information on this software as well as other Intel® Software Development Products is available at http://developer.intel.com/software/products/.

System Requirements

Recommended hardware:   Hardware requirements: Software requirements: 

Package Contents

The Intel® IPP G.722.1 Sample for Linux* package contains the following:
./ipp_sample/speech-coding/
ipplic.htm End User License Agreement
support.txt Contains information for technical support
./ipp_sample/speech-coding/G722.1/
Makefile G.722.1 Sample Makefile
build.sh Shell script to build the sample's executable files
readme.htm This file
./ipp_sample/speech-coding/G722.1/api/
decg722.c G.722.1 functions for decoding speech
encg722.c G.722.1 functions for encoding speech
g722api.c G.722.1 API functions
owng722.c Auxiliary functions for encoding/decoding
owng722.h Speech coder constants, types and inner functions definition header file
./ipp_sample/speech-coding/G722.1/include/
g722.h G.722.1 header file
g722api.h API header file
./ipp_sample/speech-coding/G722.1/samples/
g722decoder.c Main source file for decoder
g722decoder.h Main header file for decoder
g722encoder.c Main source file for encoder
g722encoder.h Main header file for encoder
./ipp_sample/speech-coding/G722.1/vm/include/
vm_thread.h Header file containing definition of cross platform functionality, which provides threading support
vm_types.h Header file containing definition of cross platform types, which are used in definitions of cross platform functionality
./ipp_sample/speech-coding/G722.1/vm/include/sys/
vm_types_linux32.h Header file containing definition of cross platform types for IA-32 platforms running Linux*
./ipp_sample/speech-coding/G722.1/vm/include/src/
vm_thread_linux32.c Source file containing implementation of threading support for IA-32 platforms running Linux*

Installation

Extract all files in l_ipp-sample-speech-coding_*.tgz to a desired folder. Please make sure to preserve the directory structure. The files for the G.722.1 sample will be found in the ./ipp_sample/speech-coding/G722.1/ folder.

How to Build Source Code

Verify that the IPPROOT environment variables contain the path where the IPP package is installed.

Evaluation Users: If you are using an Evaluation version of Intel(R) IPP, please make sure that IPPROOT is changed to: /opt/intel/ipp41_eval/ia32_itanium (using the default install directory).

Execute the file build.sh to build the G.722.1 coder sample.

Running the Software

After building, be sure that the LD_LIBRARY_PATH environment variable includes the directories of the .so files from the Intel® IPP installation. This can be accomplished by entering the following at the command prompt:    

export LD_LIBRARY_PATH=/opt/intel/ipp41/ia32_itanium/sharedlib:/opt/intel/ipp41/ia32_itanium/sharedlib/linux32:$LD_LIBRARY_PATH

or by running the shell script ippvars32.sh from the Intel® IPP installation (located in /opt/intel/ipp41/ia32_itanium/tools/env/ by default).

To run one of the G.722.1 encoder sample, type:

 g722encoder [options] <inPCMFile> <outBitstreamTestFile>  

Encoder option list: 

     -r24000|r36000  bit rates 24 kbit/s or 36 kbit/s.
     -pack          must be set if packed format use for output bit-stream file.

     -c                write to codecspeed.csv file information about coder performance.
     -s  <rep>     repeater, how many times input file shall be encoded without reset of encoder,  default: <rep>=1
     -t  <num>    number of threads to perform the same encoding operation , default: <num>=1.

     -n                option reports.
 

<inPCMFile> - input file contains 16-bit 16 KHz PCM to encode,

<outBitstreamFile> - output file, to write the encoded bit-stream,  if repeater is on only the result of last encoding will be written into output file. 

To run one of the G.722.1 decoder samples, type: 

g722decoder [options] <inBitstreamTestFile> <outPCMFile> 

Option list: 

     -r24000|r36000  bit rates 24 kbit/s or 36 kbit/s.
     -pack          must be set if packed format use for input bit-stream file.

     -c                write to codecspeed.csv file information about coder performance.
     -s  <num>   repeater, how many times to repeat an operation.

     -t  <num>    number of threads , default: one thread.

     -n                output additional information.
 

<inBitstreamTestFile> - input file contains bit-stream to decode,

<outPCMFile> - output file, to write the decoded 16-bit 8 KHz PCM.

NOTE: The bit-stream and PCM files are used in the format of the test files of  the G.722.1 simulation software which is available via  ITU-T official WEB site. To check the bit-to-bit exactness against them, correspondent bit-stream and PCM test files shall be used in pair. 

Technical Support and Feedback

Your feedback on the Intel IPP samples is very important to us and your input will be considered for future releases.

When building original sample code, let us know if you have any problems with:

  1. Installation
  2. Compiling errors
  3. Linking errors
  4. Runtime errors or incorrect output

To receive technical support and product updates for the tools provided in this product you need to register at the Intel® Registration Center and click on "Create New Account".

For information about the Intel® IPP's FAQ's, tips and tricks, and other support information, please visit: http://support.intel.com/support/performancetools/libraries/

Note:
If you are having trouble registering or unable to access your Premier Support account, contact developer.support@intel.com. Please do not email your technical issue to developer.support@intel.com as it is not a secure medium.

To submit an issue via the Intel® Premier Support website please perform the following steps:

  1. Ensure that Java* and JavaScript* are enabled in your browser.
  2. Go to https://premier.intel.com/.
  3. Type in your Login and Password.  Both are case-sensitive.
  4. Click the "Submit" button.
  5. Read the Confidentiality Statement and click the "I Accept" button.
  6. Click on the "Go" button next to the "Product" drop-down list.
  7. Click on the "Submit Issue" link in the left navigation bar.
  8. Choose "Development Environment (tools,SDV,EAP)" from the "Product Type" drop-down list.
  9. If this is a software or license-related issue choose "Intel® IPP Samples*" from the "Product Name" drop-down list.
  10. Enter your question and complete the fields in the windows that follow to successfully submit the issue.

Please follow these guidelines when you submit a technical issue to Intel Premier Support:
http://support.intel.com/support/performancetools/libraries/ipp/sb/cs-010663.htm

For product user forum, on-line help and other support information, please visit: http://support.intel.com/support/performancetools/libraries/ipp/

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