当前位置: 首页>>代码示例>>C++>>正文


C++ GstVdpDevice::vdp_video_surface_put_bits_ycbcr方法代码示例

本文整理汇总了C++中GstVdpDevice::vdp_video_surface_put_bits_ycbcr方法的典型用法代码示例。如果您正苦于以下问题:C++ GstVdpDevice::vdp_video_surface_put_bits_ycbcr方法的具体用法?C++ GstVdpDevice::vdp_video_surface_put_bits_ycbcr怎么用?C++ GstVdpDevice::vdp_video_surface_put_bits_ycbcr使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在GstVdpDevice的用法示例。


在下文中一共展示了GstVdpDevice::vdp_video_surface_put_bits_ycbcr方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: GST_MAKE_FOURCC

gboolean
gst_vdp_video_buffer_upload (GstVdpVideoBuffer * video_buf, GstBuffer * src_buf,
    guint fourcc, gint width, gint height)
{
  guint8 *data[3];
  guint32 stride[3];
  VdpYCbCrFormat format;
  GstVdpDevice *device;
  VdpStatus status;

  g_return_val_if_fail (GST_IS_VDP_VIDEO_BUFFER (video_buf), FALSE);
  g_return_val_if_fail (GST_IS_BUFFER (src_buf), FALSE);

  switch (fourcc) {
    case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
    {
      data[0] = GST_BUFFER_DATA (src_buf) +
          gst_video_format_get_component_offset (GST_VIDEO_FORMAT_YV12,
          0, width, height);
      data[1] = GST_BUFFER_DATA (src_buf) +
          gst_video_format_get_component_offset (GST_VIDEO_FORMAT_YV12,
          2, width, height);
      data[2] = GST_BUFFER_DATA (src_buf) +
          gst_video_format_get_component_offset (GST_VIDEO_FORMAT_YV12,
          1, width, height);

      stride[0] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_YV12,
          0, width);
      stride[1] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_YV12,
          2, width);
      stride[2] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_YV12,
          1, width);

      format = VDP_YCBCR_FORMAT_YV12;
      break;
    }
    case GST_MAKE_FOURCC ('I', '4', '2', '0'):
    {
      data[0] = GST_BUFFER_DATA (src_buf) +
          gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420,
          0, width, height);
      data[1] = GST_BUFFER_DATA (src_buf) +
          gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420,
          2, width, height);
      data[2] = GST_BUFFER_DATA (src_buf) +
          gst_video_format_get_component_offset (GST_VIDEO_FORMAT_I420,
          1, width, height);

      stride[0] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420,
          0, width);
      stride[1] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420,
          2, width);
      stride[2] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420,
          1, width);

      format = VDP_YCBCR_FORMAT_YV12;
      break;
    }
    case GST_MAKE_FOURCC ('N', 'V', '1', '2'):
    {
      data[0] = GST_BUFFER_DATA (src_buf);
      data[1] = GST_BUFFER_DATA (src_buf) + width * height;

      stride[0] = width;
      stride[1] = width;

      format = VDP_YCBCR_FORMAT_NV12;
      break;
    }
    case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
    {
      data[0] = GST_BUFFER_DATA (src_buf);

      stride[0] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_UYVY,
          0, width);

      format = VDP_YCBCR_FORMAT_UYVY;
      break;
    }
    case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
    {
      data[0] = GST_BUFFER_DATA (src_buf);

      stride[0] = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_YUY2,
          0, width);

      format = VDP_YCBCR_FORMAT_YUYV;
      break;
    }
    default:
      return FALSE;
  }

  device = video_buf->device;
  status = device->vdp_video_surface_put_bits_ycbcr (video_buf->surface, format,
      (void *) data, stride);
  if (G_UNLIKELY (status != VDP_STATUS_OK)) {
    GST_ERROR_OBJECT (video_buf, "Couldn't push YUV data to VDPAU, "
        "Error returned from vdpau was: %s",
        device->vdp_get_error_string (status));
//.........这里部分代码省略.........
开发者ID:collects,项目名称:gst-plugins-bad,代码行数:101,代码来源:gstvdpvideobuffer.c


注:本文中的GstVdpDevice::vdp_video_surface_put_bits_ycbcr方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。