DM368显示

我在进行一帧图像的显示时候，unsigned char * ptr=malloc(736*576);
在里面填充了图像数据之后，数据正确
if(Display_get(hDisplay, &hDisBuf) < 0)
[
printf("Failed to get display buffern");
goto cleanup;
]
Buffer_setUserPtr(hDisBuf, ptr);//报错1
if (Display_put(hDisplay,hDisBuf) < 0) //报错2
[
printf("Failed to put display buffern");
goto cleanup;
]
上面是送给显示，但是输出以下报错信息，请问是怎么回事
buffer_size hOutdavinci_v4l2 davinci_v4l2.1: Failed to map user address Buf2 is 0
 Failed to put display buffer
下面的是display的属性设置，还请论坛各位大神及ti的老师们不吝赐教，万分感谢。
DisgfxAttrs.dim.height = 576;
DisgfxAttrs.dim.width = 736;
DisgfxAttrs.dim.lineLength = Dmai_roundUp(BufferGfx_calcLineLength(DisgfxAttrs.dim.width, colorSpace), 32);
DisgfxAttrs.dim.x = 0;
DisgfxAttrs.dim.y = 0;

if (colorSpace == ColorSpace_YUV420PSEMI)
[
bufSize = (DisgfxAttrs.dim.lineLength * DisgfxAttrs.dim.height * 3 / 2);
// bufSize += RSZ_WIDTH*RSZ_HEIGHT*2;//720*576*2;
]
else [
bufSize = DisgfxAttrs.dim.lineLength * DisgfxAttrs.dim.height * 2;
]

DisgfxAttrs.colorSpace = colorSpace;
/* Update global data for user interface */
gblSetImageWidth(736);
gblSetImageHeight(576);
DisgfxAttrs.dim.height = RSZ_HEIGHT;
DisgfxAttrs.dim.width = RSZ_WIDTH;//720;
DisgfxAttrs.dim.lineLength = Dmai_roundUp(BufferGfx_calcLineLength(DisgfxAttrs.dim.width, colorSpace), 32);
DisgfxAttrs.dim.x = 0;
DisgfxAttrs.dim.y = 0;
if (colorSpace == ColorSpace_YUV420PSEMI) [
bufSize = (DisgfxAttrs.dim.lineLength * DisgfxAttrs.dim.height * 3 / 2);
]
else [
bufSize = DisgfxAttrs.dim.lineLength * DisgfxAttrs.dim.height * 2;
]
printf("DisgfxAttrs.dim.lineLength = %drn", DisgfxAttrs.dim.lineLength);
printf("DisgfxAttrs.dim.height = %drn", DisgfxAttrs.dim.height);
/* Create a table of buffers to use with the capture driver */
DisgfxAttrs.colorSpace = colorSpace;

/* Create a table of buffers to use with the display driver */
hDispBufTab = BufTab_create(NUM_DISPLAY_BUFS, bufSize,
BufferGfx_getBufferAttrs(&DisgfxAttrs));
if (hDispBufTab == NULL) [
printf("Failed to create buftabn");
goto cleanup;
]
/* Create display device driver instance if preview is needed */
if (1) [
dAttrs.videoStd = videoStd;
if ( (dAttrs.videoStd == VideoStd_CIF) ||
(dAttrs.videoStd == VideoStd_SIF_NTSC) ||
(dAttrs.videoStd == VideoStd_SIF_PAL) ||
(dAttrs.videoStd == VideoStd_VGA) ||
(dAttrs.videoStd == VideoStd_D1_NTSC) ||
(dAttrs.videoStd == VideoStd_D1_PAL) ) [
dAttrs.videoOutput = Display_Output_COMPOSITE;
] else [
dAttrs.videoOutput = Display_Output_COMPONENT;
]
dAttrs.numBufs = NUM_DISPLAY_BUFS;
dAttrs.colorSpace = colorSpace;
dAttrs.width = 736;//capDim.width;
dAttrs.height = 576;//capDim.height;
hDisplay = Display_create(hDispBufTab, &dAttrs);
if (hDisplay == NULL) [
printf("Failed to create display devicen");
goto cleanup;
]
]