Exemplo n.º 1
0
/******************************************************************************
 * Display_fbdev_get
 ******************************************************************************/
Int Display_fbdev_get(Display_Handle hDisplay, Buffer_Handle *hBufPtr)
{
    Int dummy;
    BufTab_Handle hBufTab = hDisplay->hBufTab;

    assert(hDisplay);
    assert(hBufPtr);

    dummy = 1;
    *hBufPtr = BufTab_getBuf(hBufTab, hDisplay->workingIdx);

    return Dmai_EOK;
}
Exemplo n.º 2
0
/******************************************************************************
 * cleanup
 ******************************************************************************/
static Int cleanup(Display_Handle hDisplay)
{
    Int                   ret     = Dmai_EOK;
    BufTab_Handle         hBufTab = hDisplay->hBufTab;
    enum v4l2_buf_type    type;
    Int                   bufIdx;
    Buffer_Handle         hDispBuf;

    if (hDisplay->fd != -1) {
        if (hDisplay->started) {
            /* Shut off the video display */
            type = V4L2_BUF_TYPE_VIDEO_OUTPUT;

            if (ioctl(hDisplay->fd, VIDIOC_STREAMOFF, &type) == -1) {
                Dmai_err1("VIDIOC_STREAMOFF failed (%s)\n", strerror(errno));
                ret = Dmai_EFAIL;
            }
        }

        if (close(hDisplay->fd) == -1) {
            Dmai_err1("Failed to close capture device (%s)\n", strerror(errno));
            ret = Dmai_EIO;
        }

        if (hDisplay->userAlloc == FALSE) {
            if (hBufTab) {
                for (bufIdx = 0;
                     bufIdx < BufTab_getNumBufs(hBufTab);
                     bufIdx++) {

                    hDispBuf = BufTab_getBuf(hBufTab, bufIdx);

                    if (munmap(Buffer_getUserPtr(hDispBuf),
                               Buffer_getSize(hDispBuf)) == -1) {
                        Dmai_err1("Failed to unmap capture buffer%d\n", bufIdx);
                        ret = Dmai_EFAIL;
                    }
                }
            }
        }
    }

    if (hDisplay->bufDescs) {
        free(hDisplay->bufDescs);
    }

    free(hDisplay);

    return ret;
}
Exemplo n.º 3
0
/******************************************************************************
 * cleanup
 ******************************************************************************/
static Int cleanup(Capture_Handle hCapture)
{
    BufTab_Handle         hBufTab    = hCapture->hBufTab;
    Int                   ret        = Dmai_EOK;
    Int8                 *capBufPtr;
    enum v4l2_buf_type    type;
    Uns                   bufIdx;
    Buffer_Handle         hCapBuf;

    if (hCapture->fd != -1) {
        if (hCapture->started) {
            /* Shut off the video capture */
            type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
            if (ioctl(hCapture->fd, VIDIOC_STREAMOFF, &type) == -1) {
                Dmai_err1("VIDIOC_STREAMOFF failed (%s)\n", strerror(errno));
                ret = Dmai_EFAIL;
            }
        }

        if (close(hCapture->fd) == -1) {
            Dmai_err1("Failed to close capture device (%s)\n", strerror(errno));
            ret = Dmai_EIO;
        }

        if (hCapture->userAlloc == FALSE && hBufTab) {
            for (bufIdx = 0;
                 bufIdx < BufTab_getNumBufs(hBufTab);
                 bufIdx++) {

                hCapBuf = BufTab_getBuf(hBufTab, bufIdx);
                capBufPtr = Buffer_getUserPtr(hCapBuf);

                if (munmap(capBufPtr - hCapture->topOffset,
                           Buffer_getSize(hCapBuf)) == -1) {
                    Dmai_err1("Failed to unmap capture buffer%d\n", bufIdx);
                    ret = Dmai_EFAIL;
                }
            }
        }

        if (hCapture->bufDescs) {
            free(hCapture->bufDescs);
        }
    }

    free(hCapture);

    return ret;
}
Exemplo n.º 4
0
/******************************************************************************
 * Display_fbdev_get
 ******************************************************************************/
Int Display_fbdev_get(Display_Handle hDisplay, Buffer_Handle *hBufPtr)
{
    Int dummy;
    BufTab_Handle hBufTab = hDisplay->hBufTab;

    assert(hDisplay);
    assert(hBufPtr);

    /* Wait for vertical sync */
    if (ioctl(hDisplay->fd, FBIO_WAITFORVSYNC, &dummy) == -1) {
        Dmai_err1("Failed FBIO_WAITFORVSYNC (%s)\n", strerror(errno));
        return Dmai_EFAIL;
    }

    dummy = 1;
    *hBufPtr = BufTab_getBuf(hBufTab, hDisplay->workingIdx);

    return Dmai_EOK;
}
Exemplo n.º 5
0
/******************************************************************************
 * cleanup
 ******************************************************************************/
static Int cleanup(Display_Handle hDisplay)
{
    Int                      ret     = Dmai_EOK;
    BufTab_Handle            hBufTab = hDisplay->hBufTab;
    struct fb_var_screeninfo varInfo;
    struct fb_fix_screeninfo fixInfo;

    if (hDisplay->fd != -1) {
        if (ioctl(hDisplay->fd, FBIOGET_FSCREENINFO, &fixInfo) == -1) {
            Dmai_err1("Failed FBIOGET_FSCREENINFO (%s)\n", strerror(errno));
            ret = Dmai_EFAIL;
        }

        if (ioctl(hDisplay->fd, FBIOGET_VSCREENINFO, &varInfo) == -1) {
            Dmai_err1("Failed ioctl FBIOGET_VSCREENINFO (%s)\n",
                      strerror(errno));
            ret =  Dmai_EFAIL;
        }
        
        if (ioctl(hDisplay->fd, FBIOPUT_VSCREENINFO, &hDisplay->origVarInfo) 
                == -1) {
            Dmai_err1("Failed FBIOGET_FSCREENINFO (%s)\n", strerror(errno));
            ret = Dmai_EFAIL;
        }

        if (hBufTab) {
            munmap(Buffer_getUserPtr(BufTab_getBuf(hBufTab, 0)),
                   fixInfo.line_length * varInfo.yres_virtual);

            free(hBufTab);
        }

        setDisplayBuffer(hDisplay, 0);

        close(hDisplay->fd);
    }

    free(hDisplay);

    return ret;
}
Exemplo n.º 6
0
/******************************************************************************
 * Display_fbdev_create
 ******************************************************************************/
Display_Handle Display_fbdev_create(BufTab_Handle hBufTab, Display_Attrs *attrs)
{
    BufferGfx_Attrs         gfxAttrs       = BufferGfx_Attrs_DEFAULT;
    struct fb_var_screeninfo varInfo;
    struct fb_fix_screeninfo fixInfo;
    Int                      displaySize;
    Int                      bufIdx;
    Int8                    *virtPtr;
    Int32                    physPtr;
    Int32                    height, width;
    Display_Handle           hDisplay;
    Buffer_Handle            hBuf;

    if (attrs == NULL) {
        Dmai_err0("Must supply valid attrs\n");
        return NULL;
    }

    if (hBufTab != NULL) {
        Dmai_err0("FBdev display does not accept user allocated buffers\n");
        return NULL;
    }

    hDisplay = calloc(1, sizeof(Display_Object));

    if (hDisplay == NULL) {
        Dmai_err0("Failed to allocate space for Display Object\n");
        return NULL;
    }

    /* Open video display device */
    hDisplay->fd = open(attrs->displayDevice, O_RDWR);

    if (hDisplay->fd == -1) {
        Dmai_err2("Failed to open fb device %s (%s)\n", attrs->displayDevice,
                                                        strerror(errno));
        cleanup(hDisplay);
        return NULL;
    }

    /* Get fixed screen info */
    if (ioctl(hDisplay->fd, FBIOGET_FSCREENINFO, &fixInfo) == -1) {
        Dmai_err2("Failed FBIOGET_FSCREENINFO on %s (%s)\n",
                  attrs->displayDevice, strerror(errno));
        cleanup(hDisplay);
        return NULL;
    }

    /* Get virtual screen info */
    if (ioctl(hDisplay->fd, FBIOGET_VSCREENINFO, &varInfo) == -1) {
        Dmai_err2("Failed FBIOGET_VSCREENINFO on %s (%s)\n",
                  attrs->displayDevice, strerror(errno));
        cleanup(hDisplay);
        return NULL;
    }

    Dmai_dbg5("Found width=%d height=%d, yres_virtual=%d,xres_virtual=%d,"
              " line_length=%d\n", varInfo.xres, varInfo.yres, 
                varInfo.yres_virtual,varInfo.xres_virtual, fixInfo.line_length);

    /* Save current virtual screen info. */
    memcpy(&hDisplay->origVarInfo, &varInfo, sizeof(struct fb_var_screeninfo));

    /* If video standard is set to auto then use current height and width */
    if (attrs->videoStd == VideoStd_AUTO) {
        width = varInfo.xres;
        height = varInfo.yres;
    }
    /* If video standard is not set then use the height/width passed from 
     * attribute.
     */
    else if (attrs->videoStd == -1) {
        width = attrs->width;
        height = attrs->height; 
    }
    /* calulcate height/width from video standard */
    else {
        VideoStd_getResolution(attrs->videoStd, &width, &height);
    }

    if (attrs->width > 0) {
        width = attrs->width;
    }

    if (attrs->height > 0) {
        height = attrs->height;
    }

    if (width > varInfo.xres) { 
        width = varInfo.xres;
    }

    if (height > varInfo.yres) {
        height = varInfo.yres;
    }

    varInfo.xoffset         = 0;
    varInfo.yoffset         = 0;
    varInfo.xres            = width;
    varInfo.yres            = height;
    varInfo.xres_virtual    = width;
    varInfo.yres_virtual    = varInfo.yres * attrs->numBufs;

    /* Set video display format */
    Dmai_dbg4("Setting width=%d height=%d, yres_virtual=%d,"
              " xres_virtual=%d\n", varInfo.xres, varInfo.yres, 
              varInfo.yres_virtual, varInfo.xres_virtual);

    if (ioctl(hDisplay->fd, FBIOPUT_VSCREENINFO, &varInfo) == -1) {
        Dmai_err2("Failed FBIOPUT_VSCREENINFO on %s (%s)\n",
                  attrs->displayDevice, strerror(errno));
        cleanup(hDisplay);
        return NULL;
    }

    if (ioctl(hDisplay->fd, FBIOGET_FSCREENINFO, &fixInfo) == -1) {
        Dmai_err2("Failed FBIOGET_FSCREENINFO on %s (%s)\n",
                  attrs->displayDevice, strerror(errno));
        cleanup(hDisplay);
        return NULL;
    }

    Dmai_dbg5("New width=%d, height=%d, yres_virtual=%d,xres_virtual=%d, "
              "line_length=%d\n", varInfo.xres, varInfo.yres, 
              varInfo.yres_virtual, varInfo.xres_virtual, fixInfo.line_length);

    gfxAttrs.dim.width          = varInfo.xres;
    gfxAttrs.colorSpace         = attrs->colorSpace;
    gfxAttrs.dim.height         = varInfo.yres;
    gfxAttrs.dim.lineLength     = fixInfo.line_length;
    gfxAttrs.bAttrs.reference   = TRUE;
    displaySize                 = fixInfo.line_length * varInfo.yres;

    hBufTab = BufTab_create(attrs->numBufs, displaySize,
                            BufferGfx_getBufferAttrs(&gfxAttrs));

    if (hBufTab == NULL) {
        Dmai_err0("Failed to allocate BufTab for display buffers\n");
        cleanup(hDisplay);
        return NULL;
    }

    hBuf = BufTab_getBuf(hBufTab, 0);

    Buffer_setNumBytesUsed(hBuf, varInfo.xres * varInfo.yres *
                                 varInfo.bits_per_pixel / 8);
    virtPtr = (Int8 *) mmap (NULL,
                             displaySize * attrs->numBufs,
                             PROT_READ | PROT_WRITE,
                             MAP_SHARED,
                             hDisplay->fd, 0);

    if (virtPtr == MAP_FAILED) {
        Dmai_err2("Failed mmap on %s (%s)\n", attrs->displayDevice,
                                              strerror(errno));
        cleanup(hDisplay);
        return NULL;
    }

    if (Buffer_setUserPtr(hBuf, virtPtr) < 0) {
        cleanup(hDisplay);
        return NULL;
    }

    _Dmai_blackFill(hBuf);

    Dmai_dbg3("Display buffer %d mapped to %#lx has physical address %#lx\n", 0,
              (Int32) virtPtr, physPtr);

    for (bufIdx=1; bufIdx < attrs->numBufs; bufIdx++) {
        hBuf = BufTab_getBuf(hBufTab, bufIdx);
        Buffer_setNumBytesUsed(hBuf, varInfo.xres * varInfo.yres *
                                     varInfo.bits_per_pixel / 8);

        virtPtr = virtPtr + displaySize;
        Buffer_setUserPtr(hBuf, virtPtr);
        _Dmai_blackFill(hBuf);

        Dmai_dbg3("Display buffer %d mapped to %#lx, physical address %#lx\n",
                  bufIdx, (unsigned long) virtPtr, physPtr);
    }

    hDisplay->hBufTab = hBufTab;
    hDisplay->displayIdx = 0;
    hDisplay->workingIdx = attrs->numBufs > 1 ? 1 : 0;
    hDisplay->displayStd = Display_Std_FBDEV;

    if (setDisplayBuffer(hDisplay, hDisplay->displayIdx) < 0) {
        cleanup(hDisplay);
        return NULL;
    }

    return hDisplay;
}
Exemplo n.º 7
0
/******************************************************************************
 * _Dmai_v4l2DriverAlloc
 ******************************************************************************/
Int _Dmai_v4l2DriverAlloc(Int fd, Int numBufs, enum v4l2_buf_type type,
                          struct _VideoBufDesc **bufDescsPtr,
                          BufTab_Handle *hBufTabPtr, Int topOffset, 
                          ColorSpace_Type colorSpace)
{
    BufferGfx_Attrs             gfxAttrs = BufferGfx_Attrs_DEFAULT;
    struct v4l2_requestbuffers  req;
    struct v4l2_format          fmt;
    _VideoBufDesc              *bufDesc;
    Buffer_Handle               hBuf;
    Int                         bufIdx;
    Int8                       *virtPtr;

    Dmai_clear(fmt);
    fmt.type = type;

    if (ioctl(fd, VIDIOC_G_FMT, &fmt) == -1) {
        Dmai_err1("VIDIOC_G_FMT failed (%s)\n", strerror(errno));
        return Dmai_EFAIL;
    }

    Dmai_clear(req);
    req.count  = numBufs;
    req.type   = type;
    req.memory = V4L2_MEMORY_MMAP;

    /* Allocate buffers in the capture device driver */
    if (ioctl(fd, VIDIOC_REQBUFS, &req) == -1) {
        Dmai_err1("VIDIOC_REQBUFS failed (%s)\n", strerror(errno));
        return Dmai_ENOMEM;
    }

    if (req.count < numBufs || !req.count) {
        Dmai_err0("Insufficient device driver buffer memory\n");
        return Dmai_ENOMEM;
    }

    /* Allocate space for buffer descriptors */
    *bufDescsPtr = calloc(numBufs, sizeof(_VideoBufDesc));

    if (*bufDescsPtr == NULL) {
        Dmai_err0("Failed to allocate space for buffer descriptors\n");
        return Dmai_ENOMEM;
    }

    gfxAttrs.dim.width          = fmt.fmt.pix.width;
    gfxAttrs.dim.height         = fmt.fmt.pix.height;
    gfxAttrs.dim.lineLength     = fmt.fmt.pix.bytesperline;
    gfxAttrs.colorSpace         = colorSpace;
    gfxAttrs.bAttrs.reference   = TRUE;

    *hBufTabPtr = BufTab_create(numBufs, fmt.fmt.pix.sizeimage,
                                BufferGfx_getBufferAttrs(&gfxAttrs));

    if (*hBufTabPtr == NULL) {
        return Dmai_ENOMEM;
    }

    for (bufIdx = 0; bufIdx < numBufs; bufIdx++) {
        bufDesc = &(*bufDescsPtr)[bufIdx];

        /* Ask for information about the driver buffer */
        Dmai_clear(bufDesc->v4l2buf);
        bufDesc->v4l2buf.type   = type;
        bufDesc->v4l2buf.memory = V4L2_MEMORY_MMAP;
        bufDesc->v4l2buf.index  = bufIdx;

        if (ioctl(fd, VIDIOC_QUERYBUF, &bufDesc->v4l2buf) == -1) {
            Dmai_err1("Failed VIDIOC_QUERYBUF (%s)\n", strerror(errno));
            return Dmai_EFAIL;
        }

        /* Map the driver buffer to user space */
        virtPtr = mmap(NULL,
                       bufDesc->v4l2buf.length,
                       PROT_READ | PROT_WRITE,
                       MAP_SHARED,
                       fd,
                       bufDesc->v4l2buf.m.offset) + topOffset;

        if (virtPtr == MAP_FAILED) {
            Dmai_err1("Failed to mmap buffer (%s)\n", strerror(errno));
            return Dmai_EFAIL;
        }

        /* Initialize the Buffer with driver buffer information */
        hBuf = BufTab_getBuf(*hBufTabPtr, bufIdx);

        Buffer_setNumBytesUsed(hBuf, fmt.fmt.pix.bytesperline *
                                     fmt.fmt.pix.height);
        Buffer_setUseMask(hBuf, gfxAttrs.bAttrs.useMask);
        Buffer_setUserPtr(hBuf, virtPtr);

        /* Initialize buffer to black */
        _Dmai_blackFill(hBuf);

        Dmai_dbg3("Driver buffer %d mapped to %#x has physical address "
                  "%#lx\n", bufIdx, (Int) virtPtr, Buffer_getPhysicalPtr(hBuf));

        bufDesc->hBuf = hBuf;

        /* Queue buffer in device driver */
        if (ioctl(fd, VIDIOC_QBUF, &bufDesc->v4l2buf) == -1) {
            Dmai_err1("VIODIOC_QBUF failed (%s)\n", strerror(errno));
            return Dmai_EFAIL;
        }
    }

    return Dmai_EOK;
}
Exemplo n.º 8
0
/******************************************************************************
 * _Dmai_v4l2UserAlloc
 ******************************************************************************/
Int _Dmai_v4l2UserAlloc(Int fd, Int numBufs, enum v4l2_buf_type type,
                        struct _VideoBufDesc **bufDescsPtr,
                        BufTab_Handle hBufTab, Int topOffset, 
                        ColorSpace_Type colorSpace, Int queueBuffers)
{
    struct v4l2_requestbuffers  req;
    struct v4l2_format          fmt;
    _VideoBufDesc              *bufDesc;
    Buffer_Handle               hBuf;
    Int                         bufIdx;

    Dmai_clear(fmt);
    fmt.type = type;
    if (ioctl(fd, VIDIOC_G_FMT, &fmt) == -1) {
        Dmai_err1("VIDIOC_G_FMT failed (%s)\n", strerror(errno));
        return Dmai_EFAIL;
    }

    if (Buffer_getSize(BufTab_getBuf(hBufTab, 0)) <
        fmt.fmt.pix.width * fmt.fmt.pix.height * 2) {
        Dmai_err0("Supplied buffers not large enough for video standard\n");
        return Dmai_EINVAL;
    }
    /* Set the actual size of the buffers allocated */
    fmt.type                 = type;
    fmt.fmt.pix.sizeimage    = Buffer_getSize(BufTab_getBuf(hBufTab, 0));
    fmt.fmt.pix.pixelformat  = V4L2_PIX_FMT_UYVY;
    fmt.fmt.pix.bytesperline = fmt.fmt.pix.width;

    if (ioctl(fd, VIDIOC_S_FMT, &fmt) == -1) {
        Dmai_err1("VIDIOC_S_FMT failed (%s)\n", strerror(errno));
        return Dmai_EIO;
    }
    /*
     * Tell the driver that we will use user allocated buffers, but don't
     * allocate any buffers in the driver (just the internal descriptors).
     */
    Dmai_clear(req);
    req.type   = type;
    req.count  = numBufs; 
    req.memory = V4L2_MEMORY_USERPTR;

    if (ioctl(fd, VIDIOC_REQBUFS, &req) == -1) {
        Dmai_err0("Could not allocate video display buffers\n");
        return Dmai_ENOMEM;
    }

    /* The driver may return less buffers than requested */
    if (req.count < numBufs || !req.count) {
        Dmai_err0("Insufficient device driver buffer memory\n");
        return Dmai_ENOMEM;
    }

    /* Allocate space for buffer descriptors */
    *bufDescsPtr = calloc(numBufs, sizeof(_VideoBufDesc));

    if (*bufDescsPtr == NULL) {
        Dmai_err0("Failed to allocate space for buffer descriptors\n");
        return Dmai_ENOMEM;
    }

    for (bufIdx = 0; bufIdx < numBufs; bufIdx++) {
        bufDesc = &(*bufDescsPtr)[bufIdx];
        hBuf = BufTab_getBuf(hBufTab, bufIdx);

        if (hBuf == NULL) {
            Dmai_err0("Failed to get buffer from BufTab for display\n");
            return Dmai_ENOMEM;
        }

        if (Buffer_getType(hBuf) != Buffer_Type_GRAPHICS) {
            Dmai_err0("Buffer supplied to Display not a Graphics buffer\n");
            return Dmai_EINVAL;
        }

        Dmai_clear(bufDesc->v4l2buf);
        bufDesc->v4l2buf.index     = bufIdx;
        bufDesc->v4l2buf.type      = type;
        bufDesc->v4l2buf.memory    = V4L2_MEMORY_USERPTR;
        bufDesc->v4l2buf.m.userptr = (UInt32) Buffer_getUserPtr(hBuf);
        bufDesc->v4l2buf.length    = (fmt.fmt.pix.sizeimage + 4096) & (~0xFFF);
        bufDesc->hBuf              = hBuf;
        bufDesc->used              = (queueBuffers == FALSE) ? TRUE : FALSE;

        /* If queueBuffers is TRUE, initialize the buffers to black and queue
         * them into the driver.
         */
        if (queueBuffers == TRUE) {
            Buffer_setNumBytesUsed(hBuf, Buffer_getSize(hBuf));
            _Dmai_blackFill(hBuf);

            /* Queue buffer in device driver */
            if (ioctl(fd, VIDIOC_QBUF, &bufDesc->v4l2buf) == -1) {
                Dmai_err1("VIODIC_QBUF failed (%s)\n", strerror(errno));
                return Dmai_EFAIL;
            }
        }
    }

    return Dmai_EOK;
}
Exemplo n.º 9
0
/******************************************************************************
 * appMain
 ******************************************************************************/
Int appMain(Args * args)
{
    Framecopy_Attrs         fcAttrs      = Framecopy_Attrs_DEFAULT;
    BufferGfx_Attrs         gfxAttrs     = BufferGfx_Attrs_DEFAULT;
    Smooth_Attrs            smAttrs      = Smooth_Attrs_DEFAULT;
    Time_Attrs              tAttrs       = Time_Attrs_DEFAULT;
    BufTab_Handle           hCapBufTab   = NULL;
    BufTab_Handle           hDisBufTab   = NULL;
    Display_Handle          hDisplay     = NULL;
    Capture_Handle          hCapture     = NULL;
    Framecopy_Handle        hFc          = NULL;
    Smooth_Handle           hSmooth      = NULL;
    Time_Handle             hTime        = NULL;
    Int                     numFrame     = 0;
    Display_Attrs           dAttrs;
    Capture_Attrs           cAttrs;
    Buffer_Handle           cBuf, dBuf;
    Cpu_Device              device;
    Int                     bufIdx;
    UInt32                  time;
    BufferGfx_Dimensions    dim;
    Int32                   bufSize;
    Int                     ret = Dmai_EOK;

    /* Initialize DMAI */
    Dmai_init();

    if (args->benchmark) {
        hTime = Time_create(&tAttrs);

        if (hTime == NULL) {
            ret = Dmai_EFAIL;
            fprintf(stderr,"Failed to create Time object\n");
            goto cleanup;
        }
    }

    /* Determine which device the application is running on */
    if (Cpu_getDevice(NULL, &device) < 0) {
        ret = Dmai_EFAIL;
        fprintf(stderr,"Failed to determine target board\n");
        goto cleanup;
    }

    /* Set the display and capture attributes depending on device */
    switch (device) {
        case Cpu_Device_DM6467:
            dAttrs = Display_Attrs_DM6467_VID_DEFAULT;
            cAttrs = Capture_Attrs_DM6467_DEFAULT;
            break;
        case Cpu_Device_DM365:
        case Cpu_Device_DM368:
            dAttrs = Display_Attrs_DM365_VID_DEFAULT;
            cAttrs = Capture_Attrs_DM365_DEFAULT;
            dAttrs.colorSpace = ColorSpace_YUV420PSEMI;
            cAttrs.colorSpace = dAttrs.colorSpace;
            break;
        case Cpu_Device_OMAPL138:
            dAttrs = Display_Attrs_OMAPL138_VID_DEFAULT;
            cAttrs = Capture_Attrs_OMAPL138_DEFAULT;
            break;
        case Cpu_Device_OMAP3530:
        case Cpu_Device_DM3730:
            dAttrs     = Display_Attrs_O3530_VID_DEFAULT;
            cAttrs     = Capture_Attrs_OMAP3530_DEFAULT;
            dAttrs.colorSpace = cAttrs.colorSpace = ColorSpace_UYVY;
            dAttrs.rotation = 270;
            break;
        default:
            dAttrs = Display_Attrs_DM6446_DM355_VID_DEFAULT;
            cAttrs = Capture_Attrs_DM6446_DM355_DEFAULT;
            break;
    }

    if (args->displayStd != -1) {
        dAttrs.displayStd = args->displayStd;
    }

    if (args->displayDevice) {
        dAttrs.displayDevice = args->displayDevice;
    }

    if (args->displayNumBufs != -1) {
        dAttrs.numBufs = args->displayNumBufs;
    }

    /* Enable cropping in capture driver if selected */
    if (args->width != -1 && args->height != -1 && args->crop) {
        cAttrs.cropX = args->xIn;
        cAttrs.cropY = args->yIn;
        cAttrs.cropWidth = args->width;
        cAttrs.cropHeight = args->height;
    }

    cAttrs.videoInput = args->videoInput;

    if (Capture_detectVideoStd(NULL, &cAttrs.videoStd, &cAttrs) < 0) {
        ret = Dmai_EFAIL;
        fprintf(stderr,"Failed to detect capture video standard\n");
        goto cleanup;
    }

    /* The color space of the capture buffers depend on the device */
    gfxAttrs.colorSpace = cAttrs.colorSpace;

    if (VideoStd_getResolution(cAttrs.videoStd, &gfxAttrs.dim.width, 
                                &gfxAttrs.dim.height) < 0) {
        goto cleanup;
    }

    gfxAttrs.dim.lineLength =
        Dmai_roundUp(BufferGfx_calcLineLength(gfxAttrs.dim.width, 
                                              gfxAttrs.colorSpace), 32); 
    gfxAttrs.dim.x = 0;
    gfxAttrs.dim.y = 0;

    if (gfxAttrs.colorSpace == ColorSpace_YUV422PSEMI) {
        bufSize = gfxAttrs.dim.lineLength * gfxAttrs.dim.height * 2;
    }
    else if (gfxAttrs.colorSpace == ColorSpace_YUV420PSEMI) {
        bufSize = gfxAttrs.dim.lineLength * gfxAttrs.dim.height * 3 / 2;
    }
    else {
        bufSize = gfxAttrs.dim.lineLength * gfxAttrs.dim.height;
    }

    if (args->captureUalloc) {
        /* Create a table of video buffers to use with the capture device */
        hCapBufTab = BufTab_create(cAttrs.numBufs, bufSize,
                                   BufferGfx_getBufferAttrs(&gfxAttrs));
        if (hCapBufTab == NULL) {
            ret = Dmai_EFAIL;
            fprintf(stderr,"Failed to allocate contiguous buffers\n");
            goto cleanup;
        }
    }

    /* Create the capture device driver instance */
    hCapture = Capture_create(hCapBufTab, &cAttrs);

    if (hCapture == NULL) {
        ret = Dmai_EFAIL;
        fprintf(stderr,"Failed to create capture device\n");
        goto cleanup;
    }

    /* Create the display device driver instance */
    dAttrs.videoStd = Capture_getVideoStd(hCapture);
    dAttrs.videoOutput = args->videoOutput;

    if (args->displayUalloc) {
        /* Create a table of video buffers to use with the display device */
        hDisBufTab = BufTab_create(dAttrs.numBufs, bufSize,
                                   BufferGfx_getBufferAttrs(&gfxAttrs));

        if (hDisBufTab == NULL) {
            ret = Dmai_EFAIL;
            fprintf(stderr,"Failed to allocate contiguous buffers\n");
            goto cleanup;
        }
    }

    hDisplay = Display_create(hDisBufTab, &dAttrs);

    if (hDisplay == NULL) {
        ret = Dmai_EFAIL;
        fprintf(stderr,"Failed to create display device\n");
        goto cleanup;
    }

    if (args->smooth) {
        /* Create the smooth job */
        hSmooth = Smooth_create(&smAttrs);

        if (hSmooth == NULL) {
            ret = Dmai_EFAIL;
            fprintf(stderr,"Failed to create smooth job\n");
        }
    }
    else {
        /* Create the frame copy job */
        fcAttrs.accel = args->accel;
        hFc = Framecopy_create(&fcAttrs);

        if (hFc == NULL) {
            ret = Dmai_EFAIL;
            fprintf(stderr,"Failed to create frame copy job\n");
            goto cleanup;
        }
    }

    /*
     * If cropping is not used, alter the dimensions of the captured
     * buffers and position the smaller image inside the full screen.
     */
    if (args->width != -1 && args->height != -1 && !args->crop) {
        for (bufIdx = 0;
             bufIdx < BufTab_getNumBufs(Capture_getBufTab(hCapture));
             bufIdx++) {

            cBuf = BufTab_getBuf(Capture_getBufTab(hCapture), bufIdx);
            BufferGfx_getDimensions(cBuf, &dim);

            dim.width   = args->width;
            dim.height  = args->height;
            dim.x       = args->xIn;
            dim.y       = args->yIn;

            if (BufferGfx_setDimensions(cBuf, &dim) < 0) {
                ret = Dmai_EFAIL;
                fprintf(stderr,"Input resolution does not fit in capture frame\n");
                goto cleanup;
            }
        }
    }

    /*
     * Alter the dimensions of the display buffers and position
     * the smaller image inside the full screen.
     */
    if (args->width != -1 && args->height != -1) {
        for (bufIdx = 0;
             bufIdx < BufTab_getNumBufs(Display_getBufTab(hDisplay));
             bufIdx++) {

            dBuf = BufTab_getBuf(Display_getBufTab(hDisplay), bufIdx);
            BufferGfx_getDimensions(dBuf, &dim);

            dim.width   = args->width;
            dim.height  = args->height;
            dim.x       = args->xOut;
            dim.y       = args->yOut;

            if (BufferGfx_setDimensions(dBuf, &dim) < 0) {
                ret = Dmai_EFAIL;
                fprintf(stderr,"Output resolution does not fit in display frame\n");
                goto cleanup;
            }
        }
    }

    if (args->smooth) {
        if (Smooth_config(hSmooth,
                          BufTab_getBuf(Capture_getBufTab(hCapture), 0),
                          BufTab_getBuf(Display_getBufTab(hDisplay), 0)) < 0) {
            ret = Dmai_EFAIL;
            fprintf(stderr,"Failed to configure smooth job\n");
            goto cleanup;
        }
    }
    else {
        /* Configure the frame copy job */
        if (Framecopy_config(hFc, BufTab_getBuf(Capture_getBufTab(hCapture), 0),
                          BufTab_getBuf(Display_getBufTab(hDisplay), 0)) < 0) {
            ret = Dmai_EFAIL;
            fprintf(stderr,"Failed to configure frame copy job\n");
            goto cleanup;
        }
    }

    while (numFrame++ < args->numFrames || args->numFrames == 0) {
        if (args->benchmark) {
            if (Time_reset(hTime) < 0) {
                ret = Dmai_EFAIL;
                fprintf(stderr,"Failed to reset timer\n");
                goto cleanup;
            }
        }

        /* Get a captured frame from the capture device */
        if (Capture_get(hCapture, &cBuf) < 0) {
            ret = Dmai_EFAIL;
            fprintf(stderr,"Failed to get capture buffer\n");
            goto cleanup;
        }

        /* Get a frame from the display device to be filled with data */
        if (Display_get(hDisplay, &dBuf) < 0) {
            ret = Dmai_EFAIL;
            fprintf(stderr,"Failed to get display buffer\n");
            goto cleanup;
        }

        if (args->benchmark) {
            if (Time_delta(hTime, &time) < 0) {
                ret = Dmai_EFAIL;
                fprintf(stderr,"Failed to get timer delta\n");
                goto cleanup;
            }
        }

        if (args->smooth) {
            /*
             * Remove interlacing artifacts from the captured buffer and
             * store the result in the display buffer.
             */
            if (Smooth_execute(hSmooth, cBuf, dBuf) < 0) {
                ret = Dmai_EFAIL;
                fprintf(stderr,"Failed to execute smooth job\n");
                goto cleanup;
            }
        }
        else {
            /* Copy the captured buffer to the display buffer */
            if (Framecopy_execute(hFc, cBuf, dBuf) < 0) {
                ret = Dmai_EFAIL;
                fprintf(stderr,"Failed to execute frame copy job\n");
                goto cleanup;
            }
        }

        if (args->benchmark) {
            if (Time_delta(hTime, &time) < 0) {
                ret = Dmai_EFAIL;
                fprintf(stderr,"Failed to get timer delta\n");
                goto cleanup;
            }

            printf("Smooth / Framecopy: %uus ", (Uns) time);
        }

        /* Give captured buffer back to the capture device driver */
        if (Capture_put(hCapture, cBuf) < 0) {
            ret = Dmai_EFAIL;
            fprintf(stderr,"Failed to put capture buffer\n");
            goto cleanup;
        }

        /* Send filled buffer to display device driver to be displayed */
        if (Display_put(hDisplay, dBuf) < 0) {
            ret = Dmai_EFAIL;
            fprintf(stderr,"Failed to put display buffer\n");
            goto cleanup;
        }

        if (args->benchmark) {
            if (Time_total(hTime, &time) < 0) {
                ret = Dmai_EFAIL;
                fprintf(stderr,"Failed to get timer total\n");
                goto cleanup;
            }

            printf("Frame time: %uus\n", (Uns) time);
        }
    }

cleanup:
    /* Clean up the application */
    if (hSmooth) {
        Smooth_delete(hSmooth);
    }

    if (hFc) {
        Framecopy_delete(hFc);
    }

    if (hCapture) {
        Capture_delete(hCapture);
    }

    if (hDisplay) {
        Display_delete(hDisplay);
    }

    if (hTime) {
        Time_delete(hTime);
    }

    if (hCapBufTab) {
        BufTab_delete(hCapBufTab);
    }

    if (hDisBufTab) {
        BufTab_delete(hDisBufTab);
    }

    if (ret == Dmai_EFAIL)
        return 1;
    else
        return 0;
}
Exemplo n.º 10
0
Void *writerThrFxn(Void *arg)
{
    WriterEnv *envp = (WriterEnv *) arg;
    Void *status = THREAD_SUCCESS;
    FILE *outFile = NULL;
    Buffer_Attrs bAttrs = Buffer_Attrs_DEFAULT;
    BufTab_Handle hBufTab = NULL;
    Buffer_Handle hOutBuf;
    Int bufIdx;

    /* Initialization */

	/* Open the output video file */
    outFile = fopen(envp->videoFile, "w");
	if (outFile == NULL) {
        ERR("Failed to open %s for writing\n", envp->videoFile);
        cleanup(THREAD_FAILURE);
    }

    /* Create buftab for video thread */
    hBufTab = BufTab_create(NUM_WRITER_BUFS, envp->outBufSize, &bAttrs);
    if (hBufTab == NULL) {
        ERR("Failed to allocate contiguous buffers\n");
        cleanup(THREAD_FAILURE);
    }

	/* Send all buffers to the video thread to be filled with encoded data */
    for (bufIdx = 0; bufIdx < NUM_WRITER_BUFS; bufIdx++) {
        if (Fifo_put(envp->hWriterOutFifo, BufTab_getBuf(hBufTab, bufIdx)) < 0) {
            ERR("Failed to send buffer to display thread\n");
            cleanup(THREAD_FAILURE);
        }
    }

	/* Signal that initialization is done and wait for other threads */
    Rendezvous_meet(envp->hRendezvousInit);

    while(1) {

    	/* Get an encoded buffer from the video thread */
        if (Fifo_get(envp->hWriterInFifo, &hOutBuf) < 0) {
            ERR("Failed to get buffer from video thread\n");
            cleanup(THREAD_FAILURE);
        }

		if (Buffer_getNumBytesUsed(hOutBuf)) {
			if (fwrite(Buffer_getUserPtr(hOutBuf), Buffer_getNumBytesUsed(hOutBuf), 1, outFile) != 1) {
				ERR("Error writing the encoded data to video file\n");
				cleanup(THREAD_FAILURE);
			}
		} 
		else {
			printf("Warning, writer received 0 byte encoded frame\n");
		}

		/* Return buffer to capture thread */
        if (Fifo_put(envp->hWriterOutFifo, hOutBuf) < 0) {
            ERR("Failed to send buffer to display thread\n");
            cleanup(THREAD_FAILURE);
        }

    }

cleanup:

    /* Make sure the other threads aren't waiting for us */
    Rendezvous_force(envp->hRendezvousInit);
    Pause_off(envp->hPauseProcess);

    /* Meet up with other threads before cleaning up */
    Rendezvous_meet(envp->hRendezvousCleanup);

    /* Clean up the thread before exiting */
    if (outFile) {
        fclose(outFile);
    }

    if (hBufTab) {
        BufTab_delete(hBufTab);
    }
    
	return status;    
}
Exemplo n.º 11
0
Void *videoThrFxn(Void *arg)
{
	VideoEnv *envp = (VideoEnv *) arg;

	Venc1_Handle hVe1 = NULL;
	VIDENC1_Params params = Venc1_Params_DEFAULT;
	VIDENC1_DynamicParams dynParams = Venc1_DynamicParams_DEFAULT;
	IH264VENC_Params h264Params = IH264VENC_PARAMS;
	IH264VENC_DynamicParams h264DynParams = H264VENC_TI_IH264VENC_DYNAMICPARAMS;
	VUIParamBuffer VUI_Buffer = H264VENC_TI_VUIPARAMBUFFER;

	BufTab_Handle hVidBufTab = NULL;
	Buffer_Handle hVInBuf, hWOutBuf;
	BufferGfx_Attrs gfxAttrs = BufferGfx_Attrs_DEFAULT;

	ColorSpace_Type colorSpace = ColorSpace_YUV420PSEMI;

	Int bufSize = 0;

	Void *status = THREAD_SUCCESS;

	/* Initialization */
	params.maxWidth = envp->imageWidth;
	params.maxHeight = envp->imageHeight;
	params.inputChromaFormat = XDM_YUV_420SP;
	params.reconChromaFormat = XDM_YUV_420SP;
	params.maxFrameRate = envp->videoFrameRate;
	params.encodingPreset = XDM_USER_DEFINED;
	params.rateControlPreset = IVIDEO_USER_DEFINED;
	params.maxBitRate = 10000000;

	dynParams.targetBitRate = envp->videoBitRate*0.9;
	dynParams.inputWidth = envp->imageWidth;
	dynParams.captureWidth = Dmai_roundUp(BufferGfx_calcLineLength(envp->imageWidth, colorSpace), 32);
	dynParams.inputHeight = envp->imageHeight;
	dynParams.refFrameRate = params.maxFrameRate;
	dynParams.targetFrameRate = params.maxFrameRate;
	dynParams.intraFrameInterval = 0;
	dynParams.interFrameInterval = 0;

	h264Params.videncParams = params;
	h264Params.videncParams.size = sizeof(IH264VENC_Params);
	h264Params.encQuality = 1;
	h264Params.enableDDRbuff = 1; /* Uses DDR instead of VICP buffers */
	h264Params.enableARM926Tcm = 0;
	h264Params.enableVUIparams = (0x1 << 1);
	h264Params.videncParams.inputContentType = IVIDEO_PROGRESSIVE;

	h264DynParams.videncDynamicParams = dynParams;
	h264DynParams.videncDynamicParams.size = sizeof(IH264VENC_DynamicParams);

	h264DynParams.VUI_Buffer = &VUI_Buffer;
	h264DynParams.VUI_Buffer->aspectRatioInfoPresentFlag = 1;
	h264DynParams.VUI_Buffer->overscanInfoPresentFlag = 0;
	h264DynParams.VUI_Buffer->videoSignalTypePresentFlag = 0;
	h264DynParams.VUI_Buffer->timingInfoPresentFlag = 1;
	h264DynParams.VUI_Buffer->numUnitsInTicks = 1;
	h264DynParams.VUI_Buffer->timeScale = params.maxFrameRate / 1000;
	h264DynParams.VUI_Buffer->fixedFrameRateFlag = 1; 
	h264DynParams.VUI_Buffer->nalHrdParameterspresentFlag = 1;
	h264DynParams.VUI_Buffer->picStructPresentFlag = 1;

	h264DynParams.idrFrameInterval = 15;

	hVe1 = Venc1_create(envp->hEngine, envp->videoEncoder,
			(IVIDENC1_Params *) &h264Params,
			(IVIDENC1_DynamicParams *) &h264DynParams);
	if (hVe1 == NULL) {
		ERR("Failed to create video encoder: %s\n", envp->videoEncoder);
		cleanup(THREAD_FAILURE);
	}

	/* Store the output buffer size in the environment */
	envp->outBufSize = Venc1_getOutBufSize(hVe1);

	/* Signal that the codec is created and output buffer size available */
	Rendezvous_meet(envp->hRendezvousWriter);

	/* Video BufTab create */
	BufferGfx_calcDimensions(VideoStd_D1_PAL, colorSpace, &gfxAttrs.dim);
	gfxAttrs.dim.width = 704;
	gfxAttrs.dim.height = 576;
	gfxAttrs.dim.lineLength = Dmai_roundUp(BufferGfx_calcLineLength(gfxAttrs.dim.width, colorSpace), 32);
	gfxAttrs.colorSpace = colorSpace;
	bufSize = gfxAttrs.dim.lineLength * gfxAttrs.dim.height * 3 / 2;
	hVidBufTab = BufTab_create(NUM_VIDEO_BUFS, bufSize, BufferGfx_getBufferAttrs(&gfxAttrs));
	if (hVidBufTab == NULL) {
		ERR("Failed to create video buftab\n");
		cleanup(THREAD_FAILURE);
	}

	/* Set input buffer table */
    Venc1_setBufTab(hVe1, hVidBufTab);

	/* Send video buffers to DEI */
	Int nBufId = 0;
	for (nBufId = 0; nBufId < NUM_VIDEO_BUFS; nBufId++) {
		hVInBuf = BufTab_getBuf(hVidBufTab, nBufId);
		if (Fifo_put(envp->hVideoOutFifo, hVInBuf) < 0) {
			ERR("Failed to send buffer to dei thread\n");
			cleanup(THREAD_FAILURE);
		}
	}

	/* Signal that initialization is done and wait for other threads */
	Rendezvous_meet(envp->hRendezvousInit);

	while(1) {

		/* Get buffer from DEI thread */
		if(Fifo_get(envp->hVideoInFifo, &hVInBuf) < 0) {
			ERR("Failed to get buffer from dei thread\n");
			cleanup(THREAD_FAILURE);
		}

		/* Get buffer from Writer thread */
		if(Fifo_get(envp->hWriterOutFifo, &hWOutBuf) < 0) {
			ERR("Failed to get buffer from writer thread\n");
			cleanup(THREAD_FAILURE);
		}

		/* Make sure the whole buffer is used for input */
		BufferGfx_resetDimensions(hVInBuf);

		/* Encode */
		if (Venc1_process(hVe1, hVInBuf, hWOutBuf) < 0) {
			ERR("Failed to encode video buffer\n");
			cleanup(THREAD_FAILURE);
		}

		/* Put buffer to dei thread */
		if (Fifo_put(envp->hVideoOutFifo, hVInBuf) < 0) {
			ERR("Failed to send buffer to dei thread\n");
			cleanup(THREAD_FAILURE);
		}

		/* Put buffer to writer thread */
		if (Fifo_put(envp->hWriterInFifo, hWOutBuf) < 0) {
			ERR("Failed to send buffer to dei thread\n");
			cleanup(THREAD_FAILURE);
		}

	}

cleanup:

	/* Make sure the other threads aren't waiting for us */
	Rendezvous_force(envp->hRendezvousInit);
	Rendezvous_force(envp->hRendezvousWriter);

	/* Make sure the other threads aren't waiting for init to complete */
	Rendezvous_meet(envp->hRendezvousCleanup);

	if (hVidBufTab) {
		BufTab_delete(hVidBufTab);
	}

	if (hVe1) {
		Venc1_delete(hVe1);
	}

	return status;
}
Exemplo n.º 12
0
/******************************************************************************
 * gst_tiaudenc1_encode_thread
 *     Call the audio codec to process a full input buffer
 ******************************************************************************/
static void* gst_tiaudenc1_encode_thread(void *arg)
{
    GstTIAudenc1   *audenc1    = GST_TIAUDENC1(gst_object_ref(arg));
    void          *threadRet = GstTIThreadSuccess;
    Buffer_Handle  hDstBuf;
    Int32          encDataConsumed;
    GstBuffer     *encDataWindow = NULL;
    GstClockTime   encDataTime;
    Buffer_Handle  hEncDataWindow;
    GstBuffer     *outBuf;
    GstClockTime   sampleDuration;
    guint          sampleRate;
    guint          numSamples;
    Int            bufIdx;
    Int            ret;

    GST_LOG("starting audenc encode thread\n");

    /* Initialize codec engine */
    ret = gst_tiaudenc1_codec_start(audenc1);

    /* Notify main thread that it is ok to continue initialization */
    Rendezvous_meet(audenc1->waitOnEncodeThread);
    Rendezvous_reset(audenc1->waitOnEncodeThread);

    if (ret == FALSE) {
        GST_ELEMENT_ERROR(audenc1, RESOURCE, FAILED,
        ("Failed to start codec\n"), (NULL));
        goto thread_exit;
    }

    while (TRUE) {

        /* Obtain an raw data frame */
        encDataWindow  = gst_ticircbuffer_get_data(audenc1->circBuf);
        encDataTime    = GST_BUFFER_TIMESTAMP(encDataWindow);
        hEncDataWindow = GST_TIDMAIBUFFERTRANSPORT_DMAIBUF(encDataWindow);

        /* Check if there is enough encoded data to be sent to the codec.
         * The last frame of data may not be sufficient to meet the codec
         * requirements for the amount of input data.  If so just throw
         * away the last bit of data rather than filling with bogus
         * data.
         */
        if (GST_BUFFER_SIZE(encDataWindow) <
            Aenc1_getInBufSize(audenc1->hAe)) {
            GST_LOG("Not enough audio data remains\n");
            if (!audenc1->drainingEOS) {
                goto thread_failure;
            }
            goto thread_exit;
        }

        /* Obtain a free output buffer for the encoded data */
        if (!(hDstBuf = gst_tidmaibuftab_get_buf(audenc1->hOutBufTab))) {
            GST_ELEMENT_ERROR(audenc1, RESOURCE, READ,
                ("Failed to get a free contiguous buffer from BufTab\n"),
                (NULL));
            goto thread_exit;
        }

        /* Invoke the audio encoder */
        GST_LOG("Invoking the audio encoder at 0x%08lx with %u bytes\n",
            (unsigned long)Buffer_getUserPtr(hEncDataWindow),
            GST_BUFFER_SIZE(encDataWindow));
        ret             = Aenc1_process(audenc1->hAe, hEncDataWindow, hDstBuf);
        encDataConsumed = Buffer_getNumBytesUsed(hEncDataWindow);

        if (ret < 0) {
            GST_ELEMENT_ERROR(audenc1, STREAM, ENCODE,
            ("Failed to encode audio buffer\n"), (NULL));
            goto thread_failure;
        }

        /* If no encoded data was used we cannot find the next frame */
        if (ret == Dmai_EBITERROR && encDataConsumed == 0) {
            GST_ELEMENT_ERROR(audenc1, STREAM, ENCODE,
            ("Fatal bit error\n"), (NULL));
            goto thread_failure;
        }

        if (ret > 0) {
            GST_LOG("Aenc1_process returned success code %d\n", ret); 
        }

        sampleRate     = audenc1->samplefreq;
        numSamples     = encDataConsumed / (2 * audenc1->channels) ;
        sampleDuration = GST_FRAMES_TO_CLOCK_TIME(numSamples, sampleRate);

        /* Release the reference buffer, and tell the circular buffer how much
         * data was consumed.
         */
        ret = gst_ticircbuffer_data_consumed(audenc1->circBuf, encDataWindow,
                  encDataConsumed);
        encDataWindow = NULL;

        if (!ret) {
            goto thread_failure;
        }

        /* Set the source pad capabilities based on the encoded frame
         * properties.
         */
        gst_tiaudenc1_set_source_caps(audenc1);

        /* Create a DMAI transport buffer object to carry a DMAI buffer to
         * the source pad.  The transport buffer knows how to release the
         * buffer for re-use in this element when the source pad calls
         * gst_buffer_unref().
         */
        outBuf = gst_tidmaibuffertransport_new(hDstBuf, audenc1->hOutBufTab, NULL, NULL);
        gst_buffer_set_data(outBuf, GST_BUFFER_DATA(outBuf),
            Buffer_getNumBytesUsed(hDstBuf));
        gst_buffer_set_caps(outBuf, GST_PAD_CAPS(audenc1->srcpad));

        /* Set timestamp on output buffer */
        if (audenc1->genTimeStamps) {
            GST_BUFFER_DURATION(outBuf)     = sampleDuration;
            GST_BUFFER_TIMESTAMP(outBuf)    = encDataTime;
        }
        else {
            GST_BUFFER_TIMESTAMP(outBuf)    = GST_CLOCK_TIME_NONE;
        }

        /* Tell circular buffer how much time we consumed */
        gst_ticircbuffer_time_consumed(audenc1->circBuf, sampleDuration);

        /* Push the transport buffer to the source pad */
        GST_LOG("pushing buffer to source pad with timestamp : %"
                GST_TIME_FORMAT ", duration: %" GST_TIME_FORMAT,
                GST_TIME_ARGS (GST_BUFFER_TIMESTAMP(outBuf)),
                GST_TIME_ARGS (GST_BUFFER_DURATION(outBuf)));

        if (gst_pad_push(audenc1->srcpad, outBuf) != GST_FLOW_OK) {
            GST_DEBUG("push to source pad failed\n");
            goto thread_failure;
        }

        /* Release buffers no longer in use by the codec */
        Buffer_freeUseMask(hDstBuf, gst_tidmaibuffer_CODEC_FREE);
    }

thread_failure:

    gst_tithread_set_status(audenc1, TIThread_CODEC_ABORTED);
    gst_ticircbuffer_consumer_aborted(audenc1->circBuf);
    threadRet = GstTIThreadFailure;

thread_exit:

    /* Re-claim any buffers owned by the codec */
    bufIdx = BufTab_getNumBufs(GST_TIDMAIBUFTAB_BUFTAB(audenc1->hOutBufTab));

    while (bufIdx-- > 0) {
        Buffer_Handle hBuf = BufTab_getBuf(
            GST_TIDMAIBUFTAB_BUFTAB(audenc1->hOutBufTab), bufIdx);
        Buffer_freeUseMask(hBuf, gst_tidmaibuffer_CODEC_FREE);
    }

    /* Release the last buffer we retrieved from the circular buffer */
    if (encDataWindow) {
        gst_ticircbuffer_data_consumed(audenc1->circBuf, encDataWindow, 0);
    }

    /* We have to wait to shut down this thread until we can guarantee that
     * no more input buffers will be queued into the circular buffer
     * (we're about to delete it).  
     */
    Rendezvous_meet(audenc1->waitOnEncodeThread);
    Rendezvous_reset(audenc1->waitOnEncodeThread);

    /* Notify main thread that we are done draining before we shutdown the
     * codec, or we will hang.  We proceed in this order so the EOS event gets
     * propagated downstream before we attempt to shut down the codec.  The
     * codec-shutdown process will block until all BufTab buffers have been
     * released, and downstream-elements may hang on to buffers until
     * they get the EOS.
     */
    Rendezvous_force(audenc1->waitOnEncodeDrain);

    /* Initialize codec engine */
    if (gst_tiaudenc1_codec_stop(audenc1) < 0) {
        GST_ERROR("failed to stop codec\n");
        GST_ELEMENT_ERROR(audenc1, RESOURCE, FAILED,
        ("Failed to stop codec\n"), (NULL));
    }

    gst_object_unref(audenc1);

    GST_LOG("exit audio encode_thread (%d)\n", (int)threadRet);
    return threadRet;
}