reply_1_533550
所属分类:压缩解压
开发工具:Visual C++
文件大小:160KB
下载次数:5
上传日期:2006-03-03 15:25:35
上 传 者:
bluets
说明: 一个音频压缩解码的工具,刚接触,不知道对大家有没有帮助,谢谢!
(an audio compression codec tools, counting, we do not know of any help, thank you!)
文件列表:
va_g729a.h (3192, 2001-10-02)
va_g729a.lib (96396, 2001-10-15)
va_g729a.pdf (72405, 2001-11-09)
va_g729a_decoder.c (5703, 2001-10-02)
va_g729a_decoder.exe (77824, 2001-10-16)
va_g729a_encoder.c (5251, 2001-10-02)
va_g729a_encoder.exe (86016, 2001-10-15)
******************************************************************
******************************************************************
The new package of 'va_g729B_codec.zip' includes:
* Very Simple API call-functions
* Multi-channel capabillity
* Vad/CNG integration (Annex B)
* IETF bit-packing for G.729/G729A/G729B
* Bit-packing SID Frame for annexB compliant to ITU rec H.225.0
* Dynamic memory allocation for both encoder & decoder
* Compatibility with G.729, G.729A, G.729B, G.729AB
* One Frame per Media-Sample, suitable for Telecommunication and Streaming Media
* Also suitable for VOIP: IP Softphone, IP VideoPhone etc.
* Most common DSP implementation for embedded systems.
For additional information on:
Linux platform,
Multi-instance
ACM plug-in versions
or general inquiries contact: karinel@voiceage.com
******************************************************************
******************************************************************
Sample code from the demo program (encoding a process)
// pointers to the encoder state memory (all channels)
//----------------------------------------------------------------------------
G729B_ENC_STATMEM *encStatMemPtr[NUMBER_CHANNEL_MAX];
// dynamic allocation of memory used by all the codec channels .
//----------------------------------------------------------------------------
encStatMemPtr[currentChannel] = (G729B_ENC_STATMEM *) malloc(sizeof(G729B_ENC_STATMEM));
//Initialization of all channels in use for present communication
//----------------------------------------------------------------------------
for (currentChannel=0; currentChannel
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