C++ (Cpp) gst_video_frame_copy_plane示例

示例#1

文件： gstvideomedian.c 项目： ConfusedReality/pkg_multimedia_gst-plugins-good

static GstFlowReturn
gst_video_median_transform_frame (GstVideoFilter * filter,
    GstVideoFrame * in_frame, GstVideoFrame * out_frame)
{
  GstVideoMedian *median = GST_VIDEO_MEDIAN (filter);

  if (median->filtersize == 5) {
    median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0),
        GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0),
        GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0),
        GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0),
        GST_VIDEO_FRAME_WIDTH (in_frame), GST_VIDEO_FRAME_HEIGHT (in_frame));

    if (median->lum_only) {
      gst_video_frame_copy_plane (out_frame, in_frame, 1);
      gst_video_frame_copy_plane (out_frame, in_frame, 2);
    } else {
      median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 1),
          GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 1),
          GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1),
          GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1),
          GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
          GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
      median_5 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 2),
          GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 2),
          GST_VIDEO_FRAME_PLANE_DATA (in_frame, 2),
          GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2),
          GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
          GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
    }
  } else {
    median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0),
        GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0),
        GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0),
        GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0),
        GST_VIDEO_FRAME_WIDTH (in_frame), GST_VIDEO_FRAME_HEIGHT (in_frame));

    if (median->lum_only) {
      gst_video_frame_copy_plane (out_frame, in_frame, 1);
      gst_video_frame_copy_plane (out_frame, in_frame, 2);
    } else {
      median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 1),
          GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 1),
          GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1),
          GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1),
          GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
          GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
      median_9 (GST_VIDEO_FRAME_PLANE_DATA (out_frame, 2),
          GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 2),
          GST_VIDEO_FRAME_PLANE_DATA (in_frame, 2),
          GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2),
          GST_VIDEO_FRAME_WIDTH (in_frame) / 2,
          GST_VIDEO_FRAME_HEIGHT (in_frame) / 2);
    }
  }

  return GST_FLOW_OK;
}

示例#2

文件： video-frame.c 项目： rawoul/gst-plugins-base

/**
 * gst_video_frame_copy:
 * @dest: a #GstVideoFrame
 * @src: a #GstVideoFrame
 *
 * Copy the contents from @src to @dest.
 *
 * Returns: TRUE if the contents could be copied.
 */
gboolean
gst_video_frame_copy (GstVideoFrame * dest, const GstVideoFrame * src)
{
    guint i, n_planes;
    const GstVideoInfo *sinfo;
    GstVideoInfo *dinfo;

    g_return_val_if_fail (dest != NULL, FALSE);
    g_return_val_if_fail (src != NULL, FALSE);

    sinfo = &src->info;
    dinfo = &dest->info;

    g_return_val_if_fail (dinfo->finfo->format == sinfo->finfo->format, FALSE);
    g_return_val_if_fail (dinfo->width == sinfo->width
                          && dinfo->height == sinfo->height, FALSE);

    n_planes = dinfo->finfo->n_planes;
    if (GST_VIDEO_FORMAT_INFO_HAS_PALETTE (sinfo->finfo)) {
        memcpy (dest->data[1], src->data[1], 256 * 4);
        n_planes = 1;
    }

    for (i = 0; i < n_planes; i++)
        gst_video_frame_copy_plane (dest, src, i);

    return TRUE;
}

示例#3

文件： gstsmooth.c 项目： lubing521/gst-embedded-builder

static GstFlowReturn
gst_smooth_transform_frame (GstVideoFilter * vfilter, GstVideoFrame * in_frame,
    GstVideoFrame * out_frame)
{
  GstSmooth *smooth;

  smooth = GST_SMOOTH (vfilter);

  if (!smooth->active) {
    gst_video_frame_copy (out_frame, in_frame);
    return GST_FLOW_OK;
  }

  smooth_filter (GST_VIDEO_FRAME_COMP_DATA (out_frame, 0),
      GST_VIDEO_FRAME_COMP_DATA (in_frame, 0),
      GST_VIDEO_FRAME_COMP_WIDTH (in_frame, 0),
      GST_VIDEO_FRAME_COMP_HEIGHT (in_frame, 0),
      GST_VIDEO_FRAME_COMP_STRIDE (in_frame, 0),
      GST_VIDEO_FRAME_COMP_STRIDE (out_frame, 0),
      smooth->tolerance, smooth->filtersize);
  if (!smooth->luma_only) {
    smooth_filter (GST_VIDEO_FRAME_COMP_DATA (out_frame, 1),
        GST_VIDEO_FRAME_COMP_DATA (in_frame, 1),
        GST_VIDEO_FRAME_COMP_WIDTH (in_frame, 1),
        GST_VIDEO_FRAME_COMP_HEIGHT (in_frame, 1),
        GST_VIDEO_FRAME_COMP_STRIDE (in_frame, 1),
        GST_VIDEO_FRAME_COMP_STRIDE (out_frame, 1),
        smooth->tolerance, smooth->filtersize);
    smooth_filter (GST_VIDEO_FRAME_COMP_DATA (out_frame, 2),
        GST_VIDEO_FRAME_COMP_DATA (in_frame, 2),
        GST_VIDEO_FRAME_COMP_WIDTH (in_frame, 2),
        GST_VIDEO_FRAME_COMP_HEIGHT (in_frame, 2),
        GST_VIDEO_FRAME_COMP_STRIDE (in_frame, 2),
        GST_VIDEO_FRAME_COMP_STRIDE (out_frame, 2),
        smooth->tolerance, smooth->filtersize);
  } else {
    gst_video_frame_copy_plane (out_frame, in_frame, 1);
    gst_video_frame_copy_plane (out_frame, in_frame, 2);
  }

  return GST_FLOW_OK;
}