Intel® Integrated Performance Primitives
G.729 Sample 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 any time, 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.729/A/B/D/E/I 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

This sample is is fully compliant with the ITU-T G.729 Recommendation and Annexes A,  B,  D and E.  The G.729 sample has been implemented using the Intel® IPP Speech Coding functions. 

Each of two samples is a command line based application which processes a data given by single input file and stores result into output file.  The encode sample consumes 16bit 8KHz raw PCM data, produces compressed bitstream which is stored then into output file in conventional test vector format. The decode sample consumes such a file contains bitstream data, extracts a bitstream frames out, decompress them and stores it in file as 16bit 8KHz raw PCM data.

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

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 1: 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. Sample is targeted to demonstrate MT safety of a codec. 

System Requirements

Recommended hardware:   Hardware requirements: Software requirements: 

Package Contents

The Intel® IPP G.729 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/G729/
Makefile G.729 Sample Makefile
build32.sh Shell script for building the project for IA32
buildem64t.sh Shell script for building the project for Intel Xeon processors with Intel EM64T
linux32.ini, lem64t.ini Include files for Makefile
readme.htm This file
./ipp_sample/speech-coding/G729/api/
decg729.c Functions for decoding speech
encg729.c Functions for encoding speech
owng729.c Auxiliary functions
owng729.h Coder constants, types and inner functions definition header file
scratchmem.h Local memory definition header file
./ipp_sample/speech-coding/G729/include/
g729api.h API header file
./ipp_sample/speech-coding/G729/samples/
g729decoder.c Main source file for decoder
g729decoder.h Main header file for decoder
g729encoder.c Main source file for encoder
g729encoder.h Main header file for encoder
./ipp_sample/speech-coding/G729/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/G729/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/G729/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.729 sample will be found in the ./ipp_sample/speech-coding/G729/ folder.

How to Build Source Code

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.729 encoder samples, type: 

To run one of the G.729 encoder sample, type: 

encoder729 [options] <inPCMFile> <outBitstreamTestFile> 

Encoder option list: 

     -r<mode>       <mode>: A - specify G.729 Annex A encoder, D - Annex D, E - Annex E, default G.729 main body encoder.

     -r<filename>  Bit rates given by file on per frame basis. (G.729 main body, Annex D or Annex E)  

     -v                  Voice Activity Detection enabled (VAD). Default: VAD disabled. 
     -n                  output additional information.
     -c                  write to codecspeed.csv file information about encoder 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.

<inPCMFile> - input file contains 16-bit 8 KHz PCM to encode,

<outBitstreamTestFile> - output file, contains the encoded bit-stream in G.729 test vectors format.

Note:  if repeater is specified (-s option) only the result of last encoding will be written into output file. 

To run one of the G.729 decoder sample, type: 

decoder729 [options] <inBitstreamTestFile> <outPCMFile> 

Decoder option list: 

     -r<mode>      mode: A - specify G.729 Annex A decoder, other modes are bit-stream controlled (either G.729 main body or annexes D or E bit-stream types).

                          See note below about the format of the bit-streams. 

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

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

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

if repeater is specified (-s option) only the result of last encoding will be written into output file. 

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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