How to dump decoded raw yuv data in ICS?

Can you check next 2 posts? I think they can answer your question.

http://e2e.ti.com/support/omap/f/849/p/193199/690788.aspx

http://e2e.ti.com/support/omap/f/849/p/189036/679771.aspx

hello Manuel:

I read the link mentioned:

and firstly i enable the macro,

LOCAL_CFLAGS += -DENABLE_RAW_BUFFERS_DUMP_UTILITY, and

LOCAL_SHARED_LIBRARIES += libcutils

to avoid crash,

modifications are made in fucntion:

static void convertNV12ToYuv420(DebugFrame_Dump *frameInfo, void *dst)
{
    int stride = 4096; /* ARM Page size = 4k */
    uint32_t ybuf_offset = frameInfo->frame_yoffset * stride + frameInfo->frame_xoffset;
    uint8_t* p1y = (uint8_t*)frameInfo->y_uv[0] + ybuf_offset;
    uint8_t* p2y = (uint8_t*) dst;
    int i, j, j1;
    int width = frameInfo->frame_width;
    int height = frameInfo->frame_height;

    LOGE("Coverting NV-12 to YUV420p Width[%d], Height[%d] and Stride[%d] offset[%d]",
    width, height, stride, ybuf_offset);

    /* copy y-buffer, almost bytewise copy, except for stride jumps.*/
    for(i=0;i<height;i++)
    {
        /* copy whole row of Y pixels. source and desination will point to new row each time.*/
        TIMM_OSAL_Memcpy(p2y+i*width, p1y+i*stride, width);
        //LOGE("Coverting NV-12 to YUV420p %d/%d, p2y=[%p], p1y=[%p]", i, height, p2y, p1y);
    }

    /** copy uv buffers
    * rearrange from  packed planar [uvuvuv] to planar [uuu][vvvv] packages pixel wise
    * calculate the offset for UV buffer
    */
    uint32_t UV_offset = frameInfo->frame_xoffset +
                             (frameInfo->frame_yoffset * stride)/2;

    LOGE("Coverting NV-12 to YUV420p UV_offset=%d, yuv[0]=%p, yuv[1]=%p", UV_offset, frameInfo->y_uv[0], frameInfo->y_uv[1]);

//    const uint8_t* p1uv = (uint8_t*)frameInfo->y_uv[1] + UV_offset;  ==> y_uv[1] is always NULL pointer
    const uint8_t* p1uv = (uint8_t*)frameInfo->y_uv[0] + stride * height ; ==> change it like this.
    LOGE("Coverting NV-12 to YUV420p p1uv =%p", p1uv );

    uint8_t* p2u = ((uint8_t*) dst + (width * height));
    LOGE("Coverting NV-12 to YUV420p p2u  =%p", p2u );
    
    uint8_t* p2v = ((uint8_t*) p2u + ((width/2) * (height/2)));
    LOGE("Coverting NV-12 to YUV420p p2v =%p", p2v );

    for(i=0;(i < height/2);i++)
    {
        for(j=0,j1=0;(j< width/2);j++,j1+=2)
        {
            p2u[j] = p1uv[j1];
            p2v[j] = p1uv[j1+1];
        }
        p1uv+=stride;
        p2u+=width/2;
        p2v+=width/2;
    }

    LOGE("Coverting NV-12 to YUV420p ===> DONE" );
}

 the decode file is 1280 * 720, and tablet could display it well, but After check the output file, it is only 140K, that's not correct.

Can you try removing the conversion code and dump NV12 data before the converter?

hello Manuel:

frame_nv12.txt is the file before convert,  I change to .txt to follow the policy of allowed attachment file name, please rename it after download.

4135.frame_nv12.txt

frame_yuv.txt is the file after convert

1067.frame_yuv.txt

thanks.

Can you please let us know the width and height of the frame buffer?

Hello:

video frame is 1280 * 720, crop rect = [32, 24, 1408, 816]

it is not clear to me what you mean by 1280 * 720, crop rect = [32, 24, 1408, 816]. I tried to view the file 4135.frame_nv12.txt in 1280x720 and 1408x816 and both ways it looks like an invalid frame.