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DMAI(DaVinci Multimedia Application Interface)ÊÇDSPÌṩ¸øARM¶ËÓ¦ÓóÌÐòµÄµ÷Óýӿڣ¬DSPÒ²ÊÇÒÀÀµÓÚDSPLINKµÄ¡£ DMAIÖÐÒ²ÌṩÁËÐí¶àVISA (video, imaging, speech and audio)±à½âÂëµÄʵÀý¡£DMAIÌṩµÄÊÇÒ»ÖÖ¹¦ÄܵijéÏ󣬶øÔÚ¾ßÌåʵÏÖÉÏ£¬²»Í¬Ó²¼þƽ̨£¬²»Í¬ÏµÍ³ÊDz»Ò»¸öÑùµÄ¡£ÁíÍ⣬ÓÉÓÚDMAIÊÇÒÔÔ´´úÂëµÄÐÎʽÌṩµÄ£¬ËùÒÔ¿ÉÒÔÓÃÀ´²Î¿¼Íê³ÉһЩ±ðµÄÈÎÎñ£¬±ÈÈçÉ豸Çý¶¯¡£ DMAIµÄÓÅÊÆ£º 1. ÒÆÖ²ºÍÖØÓãºÀýÈçTI GStreamer plugin¾ÍÊÇ»ùÓÚDMAI£¬Ëü¿ÉÒÔ·½±ãµÄÒÆÖ²µ½ÆäËûµÄdavinciƽ̨¡£ 2. Èí¼þ½Ó¿ÚÒ»Ö£º £¨1£©¶Ôµ×²ãÓ²¼þ¼ÓËÙ²¿·Ö³éÏó·â×°£¬Ê¹¿ª·¢Õß²»ÐèÒªÃ÷°×ƽ̨µÄÌض¨ÊµÏÖ £¨2£©Ö§³ÖËùÓеÄcodec£¬Ê¹¿ª·¢Õß²»±ØÃ÷°×xDM°æ±¾µÄϸ½ÚÓëÇø±ð £¨3£©¶ÔÏÔʾµÄ³éÏó£¨FBDEVºÍV4L2£© £¨4£©¹ÜÀíµ×²ãϸ½ÚÓë´íÎó´¦Àí ´úÂëʾÀý£º {
#include
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#include
Adec_Handle hAd;
Loader_Handle hLoader;
Buffer_Handle hOutBuf, hInBuf;
Engine_Handle hEngine;
Sound_Handle hSound;
AUDDEC_Params params = Adec_Params_DEFAULT;
AUDDEC_DynamicParams dynParams = Adec_DynamicParams_DEFAULT;
Loader_Attrs lAttrs = Loader_Attrs_DEFAULT;
Buffer_Attrs bAttrs = Buffer_Attrs_DEFAULT;
Sound_Attrs sAttrs = Sound_Attrs_STEREO_DEFAULT;
CERuntime_init();
Dmai_init();
hSound = Sound_create(&sAttrs);
hEngine = Engine_open("myengine", NULL, NULL);
hAd = Adec_create(hEngine, "aacdec", ¶ms, &dynParams);
hOutBuf = Buffer_create(Adec_getOutBufSize(hAd), &bAttrs);
lAttrs.readSize = Adec_getInBufSize(hAd);
lAttrs.readBufSize = lAttrs.readSize * 2;
hLoader = Loader_create("myfile.aac", &lAttrs);
Loader_prime(hLoader, &hInBuf);
while (1) {
Adec_process(hAd, hInBuf, hOutBuf);
Sound_write(hSound, hOutBuf);
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