コード例 #1
0
ファイル: gstvaapisurface.c プロジェクト: cbetz421/gst-vaapi
/**
 * gst_vaapi_surface_query_status:
 * @surface: a #GstVaapiSurface
 * @pstatus: return location for the #GstVaapiSurfaceStatus
 *
 * Finds out any pending operations on the @surface. The
 * #GstVaapiSurfaceStatus flags are returned into @pstatus.
 *
 * Return value: %TRUE on success
 */
gboolean
gst_vaapi_surface_query_status(
    GstVaapiSurface       *surface,
    GstVaapiSurfaceStatus *pstatus
)
{
    VASurfaceStatus surface_status;
    VAStatus status;

    g_return_val_if_fail(GST_VAAPI_IS_SURFACE(surface), FALSE);

    GST_VAAPI_OBJECT_LOCK_DISPLAY(surface);
    status = vaQuerySurfaceStatus(
        GST_VAAPI_OBJECT_VADISPLAY(surface),
        GST_VAAPI_OBJECT_ID(surface),
        &surface_status
    );
    GST_VAAPI_OBJECT_UNLOCK_DISPLAY(surface);
    if (!vaapi_check_status(status, "vaQuerySurfaceStatus()"))
        return FALSE;

    if (pstatus)
        *pstatus = to_GstVaapiSurfaceStatus(surface_status);
    return TRUE;
}
コード例 #2
0
static void
coded_buffer_unmap (GstVaapiCodedBuffer * buf)
{
  if (!buf->segment_list)
    return;

  GST_VAAPI_OBJECT_LOCK_DISPLAY (buf);
  vaapi_unmap_buffer (GST_VAAPI_OBJECT_VADISPLAY (buf),
      GST_VAAPI_OBJECT_ID (buf), (void **) &buf->segment_list);
  GST_VAAPI_OBJECT_UNLOCK_DISPLAY (buf);
}
コード例 #3
0
static gboolean
coded_buffer_map (GstVaapiCodedBuffer * buf)
{
  if (buf->segment_list)
    return TRUE;

  GST_VAAPI_OBJECT_LOCK_DISPLAY (buf);
  buf->segment_list = vaapi_map_buffer (GST_VAAPI_OBJECT_VADISPLAY (buf),
      GST_VAAPI_OBJECT_ID (buf));
  GST_VAAPI_OBJECT_UNLOCK_DISPLAY (buf);
  return buf->segment_list != NULL;
}
コード例 #4
0
/**
 * gst_vaapi_texture_put_surface:
 * @texture: a #GstVaapiTexture
 * @surface: a #GstVaapiSurface
 * @flags: postprocessing flags. See #GstVaapiTextureRenderFlags
 *
 * Renders the @surface into the àtexture. The @flags specify how
 * de-interlacing (if needed), color space conversion, scaling and
 * other postprocessing transformations are performed.
 *
 * Return value: %TRUE on success
 */
static gboolean
gst_vaapi_texture_glx_put_surface_unlocked (GstVaapiTexture * base_texture,
    GstVaapiSurface * surface, const GstVaapiRectangle * crop_rect, guint flags)
{
  GstVaapiTextureGLX *const texture = GST_VAAPI_TEXTURE_GLX (base_texture);
  VAStatus status;
  GLContextState old_cs;
  gboolean success = FALSE;

  const GLfloat *txc, *tyc;
  static const GLfloat g_texcoords[2][2] = {
    {0.0f, 1.0f},
    {1.0f, 0.0f},
  };

  status = vaPutSurface (GST_VAAPI_OBJECT_VADISPLAY (texture),
      GST_VAAPI_OBJECT_ID (surface), texture->pixo->pixmap,
      crop_rect->x, crop_rect->y, crop_rect->width, crop_rect->height,
      0, 0, base_texture->width, base_texture->height,
      NULL, 0, from_GstVaapiSurfaceRenderFlags (flags));
  if (!vaapi_check_status (status, "vaPutSurface() [TFP]"))
    return FALSE;

  if (texture->gl_context &&
      !gl_set_current_context (texture->gl_context, &old_cs))
    return FALSE;

  if (!gl_bind_framebuffer_object (texture->fbo)) {
    GST_ERROR ("failed to bind FBO");
    goto out_reset_context;
  }

  if (!gst_vaapi_surface_sync (surface)) {
    GST_ERROR ("failed to render surface to pixmap");
    goto out_unbind_fbo;
  }

  if (!gl_bind_pixmap_object (texture->pixo)) {
    GST_ERROR ("could not bind GLX pixmap");
    goto out_unbind_fbo;
  }

  flags = GST_VAAPI_TEXTURE_FLAGS (texture);
  txc = g_texcoords[! !(flags & GST_VAAPI_TEXTURE_ORIENTATION_FLAG_X_INVERTED)];
  tyc = g_texcoords[! !(flags & GST_VAAPI_TEXTURE_ORIENTATION_FLAG_Y_INVERTED)];

  glColor4f (1.0f, 1.0f, 1.0f, 1.0f);
  glBegin (GL_QUADS);
  {
    glTexCoord2f (txc[0], tyc[0]);
    glVertex2i (0, 0);
    glTexCoord2f (txc[0], tyc[1]);
    glVertex2i (0, base_texture->height);
    glTexCoord2f (txc[1], tyc[1]);
    glVertex2i (base_texture->width, base_texture->height);
    glTexCoord2f (txc[1], tyc[0]);
    glVertex2i (base_texture->width, 0);
  }
  glEnd ();

  if (!gl_unbind_pixmap_object (texture->pixo)) {
    GST_ERROR ("failed to release GLX pixmap");
    goto out_unbind_fbo;
  }
  success = TRUE;

out_unbind_fbo:
  if (!gl_unbind_framebuffer_object (texture->fbo))
    success = FALSE;
out_reset_context:
  if (texture->gl_context && !gl_set_current_context (&old_cs, NULL))
    success = FALSE;
  return success;
}