C++ (Cpp) APPLY_MATRIX Examples

Example #1

File: gstvideobalance.c Project: PeterXu/gst-mobile

static void
gst_video_balance_packed_rgb (GstVideoBalance * videobalance,
    GstVideoFrame * frame)
{
  gint i, j, height;
  gint width, stride, row_wrap;
  gint pixel_stride;
  guint8 *data;
  gint offsets[3];
  gint r, g, b;
  gint y, u, v;
  gint u_tmp, v_tmp;
  guint8 *tabley = videobalance->tabley;
  guint8 **tableu = videobalance->tableu;
  guint8 **tablev = videobalance->tablev;

  width = GST_VIDEO_FRAME_WIDTH (frame);
  height = GST_VIDEO_FRAME_HEIGHT (frame);

  offsets[0] = GST_VIDEO_FRAME_COMP_OFFSET (frame, 0);
  offsets[1] = GST_VIDEO_FRAME_COMP_OFFSET (frame, 1);
  offsets[2] = GST_VIDEO_FRAME_COMP_OFFSET (frame, 2);

  data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
  stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);

  pixel_stride = GST_VIDEO_FRAME_COMP_PSTRIDE (frame, 0);
  row_wrap = stride - pixel_stride * width;

  for (i = 0; i < height; i++) {
    for (j = 0; j < width; j++) {
      r = data[offsets[0]];
      g = data[offsets[1]];
      b = data[offsets[2]];

      y = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 0, r, g, b);
      u_tmp = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 1, r, g, b);
      v_tmp = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 2, r, g, b);

      y = CLAMP (y, 0, 255);
      u_tmp = CLAMP (u_tmp, 0, 255);
      v_tmp = CLAMP (v_tmp, 0, 255);

      y = tabley[y];
      u = tableu[u_tmp][v_tmp];
      v = tablev[u_tmp][v_tmp];

      r = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 0, y, u, v);
      g = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 1, y, u, v);
      b = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 2, y, u, v);

      data[offsets[0]] = CLAMP (r, 0, 255);
      data[offsets[1]] = CLAMP (g, 0, 255);
      data[offsets[2]] = CLAMP (b, 0, 255);
      data += pixel_stride;
    }
    data += row_wrap;
  }
}

Example #2

File: gstgamma.c Project: luisbg/gst-plugins-good

static void
gst_gamma_packed_rgb_ip (GstGamma * gamma, guint8 * data)
{
  gint i, j, height;
  gint width, row_stride, row_wrap;
  gint pixel_stride;
  const guint8 *table = gamma->gamma_table;
  gint offsets[3];
  gint r, g, b;
  gint y, u, v;

  offsets[0] = gst_video_format_get_component_offset (gamma->format, 0,
      gamma->width, gamma->height);
  offsets[1] = gst_video_format_get_component_offset (gamma->format, 1,
      gamma->width, gamma->height);
  offsets[2] = gst_video_format_get_component_offset (gamma->format, 2,
      gamma->width, gamma->height);

  width = gst_video_format_get_component_width (gamma->format, 0, gamma->width);
  height = gst_video_format_get_component_height (gamma->format, 0,
      gamma->height);
  row_stride = gst_video_format_get_row_stride (gamma->format, 0, gamma->width);
  pixel_stride = gst_video_format_get_pixel_stride (gamma->format, 0);
  row_wrap = row_stride - pixel_stride * width;

  for (i = 0; i < height; i++) {
    for (j = 0; j < width; j++) {
      r = data[offsets[0]];
      g = data[offsets[1]];
      b = data[offsets[2]];

      y = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 0, r, g, b);
      u = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 1, r, g, b);
      v = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 2, r, g, b);

      y = table[CLAMP (y, 0, 255)];
      r = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 0, y, u, v);
      g = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 1, y, u, v);
      b = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 2, y, u, v);

      data[offsets[0]] = CLAMP (r, 0, 255);
      data[offsets[1]] = CLAMP (g, 0, 255);
      data[offsets[2]] = CLAMP (b, 0, 255);
      data += pixel_stride;
    }
    data += row_wrap;
  }
}

Example #3

File: gstgamma.c Project: adesurya/gst-mobile

static void
gst_gamma_packed_rgb_ip (GstGamma * gamma, GstVideoFrame * frame)
{
  gint i, j, height;
  gint width, stride, row_wrap;
  gint pixel_stride;
  const guint8 *table = gamma->gamma_table;
  gint offsets[3];
  gint r, g, b;
  gint y, u, v;
  guint8 *data;

  data = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
  stride = GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0);
  width = GST_VIDEO_FRAME_COMP_WIDTH (frame, 0);
  height = GST_VIDEO_FRAME_COMP_HEIGHT (frame, 0);

  offsets[0] = GST_VIDEO_FRAME_COMP_OFFSET (frame, 0);
  offsets[1] = GST_VIDEO_FRAME_COMP_OFFSET (frame, 1);
  offsets[2] = GST_VIDEO_FRAME_COMP_OFFSET (frame, 2);

  pixel_stride = GST_VIDEO_FRAME_COMP_PSTRIDE (frame, 0);
  row_wrap = stride - pixel_stride * width;

  for (i = 0; i < height; i++) {
    for (j = 0; j < width; j++) {
      r = data[offsets[0]];
      g = data[offsets[1]];
      b = data[offsets[2]];

      y = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 0, r, g, b);
      u = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 1, r, g, b);
      v = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 2, r, g, b);

      y = table[CLAMP (y, 0, 255)];
      r = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 0, y, u, v);
      g = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 1, y, u, v);
      b = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 2, y, u, v);

      data[offsets[0]] = CLAMP (r, 0, 255);
      data[offsets[1]] = CLAMP (g, 0, 255);
      data[offsets[2]] = CLAMP (b, 0, 255);
      data += pixel_stride;
    }
    data += row_wrap;
  }
}

Example #4

File: gstvideobalance.c Project: rosciio/gst-plugins-good

static void
gst_video_balance_packed_rgb (GstVideoBalance * videobalance, guint8 * data)
{
  gint i, j, height;
  gint width, row_stride, row_wrap;
  gint pixel_stride;
  gint offsets[3];
  gint r, g, b;
  gint y, u, v;
  gint u_tmp, v_tmp;
  guint8 *tabley = videobalance->tabley;
  guint8 **tableu = videobalance->tableu;
  guint8 **tablev = videobalance->tablev;

  offsets[0] = gst_video_format_get_component_offset (videobalance->format, 0,
      videobalance->width, videobalance->height);
  offsets[1] = gst_video_format_get_component_offset (videobalance->format, 1,
      videobalance->width, videobalance->height);
  offsets[2] = gst_video_format_get_component_offset (videobalance->format, 2,
      videobalance->width, videobalance->height);

  width =
      gst_video_format_get_component_width (videobalance->format, 0,
      videobalance->width);
  height =
      gst_video_format_get_component_height (videobalance->format, 0,
      videobalance->height);
  row_stride =
      gst_video_format_get_row_stride (videobalance->format, 0,
      videobalance->width);
  pixel_stride = gst_video_format_get_pixel_stride (videobalance->format, 0);
  row_wrap = row_stride - pixel_stride * width;

  for (i = 0; i < height; i++) {
    for (j = 0; j < width; j++) {
      r = data[offsets[0]];
      g = data[offsets[1]];
      b = data[offsets[2]];

      y = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 0, r, g, b);
      u_tmp = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 1, r, g, b);
      v_tmp = APPLY_MATRIX (cog_rgb_to_ycbcr_matrix_8bit_sdtv, 2, r, g, b);

      y = CLAMP (y, 0, 255);
      u_tmp = CLAMP (u_tmp, 0, 255);
      v_tmp = CLAMP (v_tmp, 0, 255);

      y = tabley[y];
      u = tableu[u_tmp][v_tmp];
      v = tablev[u_tmp][v_tmp];

      r = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 0, y, u, v);
      g = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 1, y, u, v);
      b = APPLY_MATRIX (cog_ycbcr_to_rgb_matrix_8bit_sdtv, 2, y, u, v);

      data[offsets[0]] = CLAMP (r, 0, 255);
      data[offsets[1]] = CLAMP (g, 0, 255);
      data[offsets[2]] = CLAMP (b, 0, 255);
      data += pixel_stride;
    }
    data += row_wrap;
  }
}