Esempi in C++ (Cpp) per _drm_fourcc_from_info

Esempio n. 1

File: gsteglimage.c Progetto: justinjoy/gst-plugins-bad

GstEGLImage *
gst_egl_image_from_dmabuf (GstGLContext * context,
    gint dmabuf, GstVideoInfo * in_info, gint plane, gsize offset)
{
  GstGLContextEGL *ctx_egl = GST_GL_CONTEXT_EGL (context);
  gint fourcc;
  gint atti = 0;
  EGLint attribs[13];
  EGLImageKHR img = EGL_NO_IMAGE_KHR;
  GstVideoGLTextureType type;

  fourcc = _drm_fourcc_from_info (in_info, plane);
  type =
      gst_gl_texture_type_from_format (context, GST_VIDEO_INFO_FORMAT (in_info),
      plane);

  GST_DEBUG ("fourcc %.4s (%d) plane %d (%dx%d)",
      (char *) &fourcc, fourcc, plane,
      GST_VIDEO_INFO_COMP_WIDTH (in_info, plane),
      GST_VIDEO_INFO_COMP_HEIGHT (in_info, plane));

  attribs[atti++] = EGL_WIDTH;
  attribs[atti++] = GST_VIDEO_INFO_COMP_WIDTH (in_info, plane);
  attribs[atti++] = EGL_HEIGHT;
  attribs[atti++] = GST_VIDEO_INFO_COMP_HEIGHT (in_info, plane);

  attribs[atti++] = EGL_LINUX_DRM_FOURCC_EXT;
  attribs[atti++] = fourcc;

  attribs[atti++] = EGL_DMA_BUF_PLANE0_FD_EXT;
  attribs[atti++] = dmabuf;

  attribs[atti++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT;
  attribs[atti++] = offset;
  attribs[atti++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
  attribs[atti++] = GST_VIDEO_INFO_PLANE_STRIDE (in_info, plane);

  attribs[atti] = EGL_NONE;

  for (int i = 0; i < atti; i++)
    GST_LOG ("attr %i: %08X", i, attribs[i]);

  g_assert (atti == 12);

  img = ctx_egl->eglCreateImage (ctx_egl->egl_display, EGL_NO_CONTEXT,
      EGL_LINUX_DMA_BUF_EXT, NULL, attribs);

  if (!img) {
    GST_WARNING ("eglCreateImage failed: %s",
        gst_gl_context_egl_get_error_string (eglGetError ()));
    return NULL;
  }

  return gst_egl_image_new_wrapped (context, img, type,
      GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL,
      (GstEGLImageDestroyNotify) _destroy_egl_image, NULL);
}

Esempio n. 2

File: gsteglimagememory.c Progetto: sukersuker/gst-plugins-bad

GstMemory *
gst_egl_image_memory_from_dmabuf (GstGLContext * context,
    gint dmabuf, GstVideoInfo * in_info, gint plane, gsize offset)
{
  GstGLContextEGL *ctx_egl = GST_GL_CONTEXT_EGL (context);
  GstEGLImageAllocator *allocator;
  gint fourcc;
  gint atti = 0;
  EGLint attribs[13];
  EGLImageKHR img = EGL_NO_IMAGE_KHR;

  allocator = gst_egl_image_allocator_obtain ();
  fourcc = _drm_fourcc_from_info (in_info, plane);

  GST_DEBUG ("fourcc %.4s (%d) plane %d (%dx%d)",
      (char *) &fourcc, fourcc, plane,
      GST_VIDEO_INFO_COMP_WIDTH (in_info, plane),
      GST_VIDEO_INFO_COMP_HEIGHT (in_info, plane));

  attribs[atti++] = EGL_WIDTH;
  attribs[atti++] = GST_VIDEO_INFO_COMP_WIDTH (in_info, plane);
  attribs[atti++] = EGL_HEIGHT;
  attribs[atti++] = GST_VIDEO_INFO_COMP_HEIGHT (in_info, plane);

  attribs[atti++] = EGL_LINUX_DRM_FOURCC_EXT;
  attribs[atti++] = fourcc;

  attribs[atti++] = EGL_DMA_BUF_PLANE0_FD_EXT;
  attribs[atti++] = dmabuf;

  attribs[atti++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT;
  attribs[atti++] = offset;
  attribs[atti++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
  attribs[atti++] = GST_VIDEO_INFO_PLANE_STRIDE (in_info, plane);

  attribs[atti] = EGL_NONE;

  for (int i = 0; i < atti; i++)
    GST_LOG ("attr %i: %08X", i, attribs[i]);

  g_assert (atti == 12);

  img = ctx_egl->eglCreateImage (ctx_egl->egl_display, EGL_NO_CONTEXT,
      EGL_LINUX_DMA_BUF_EXT, NULL, attribs);

  if (!img) {
    GST_WARNING_OBJECT (allocator, "eglCreateImage failed: %s",
        gst_gl_context_egl_get_error_string ());
    return NULL;
  }

  return gst_egl_image_allocator_wrap (allocator, ctx_egl, img, 0, 0,
      in_info->size, NULL, NULL);
}