C++ (Cpp) gavl_video_format_set_frame_size示例

示例#1

文件： gavf.c 项目： kidaa/gmerlin

static void get_overlay_format(const gavl_video_format_t * src,
                               gavl_video_format_t * dst,
                               const gavl_rectangle_i_t * src_rect)
{
    gavl_video_format_copy(dst, src);
    dst->image_width  = src_rect->w + src_rect->x;
    dst->image_height = src_rect->h + src_rect->y;
    gavl_video_format_set_frame_size(dst, 0, 0);
}

示例#2

文件： ov.c 项目： Jheengut/gmerlin

gavl_video_sink_t *
bg_ov_add_overlay_stream(bg_ov_t * ov, gavl_video_format_t * format)
  {
  ovl_stream_t * str;

  ov->ovl_str = realloc(ov->ovl_str,
                        (ov->num_ovl_str+1)*
                        sizeof(*ov->ovl_str));
  str = ov->ovl_str + ov->num_ovl_str;
  memset(str, 0, sizeof(*str));
  
  ov->num_ovl_str++;
 
  if(!format->image_width || !format->image_height)
    {
    format->image_width = ov->format.image_width;
    format->image_height = ov->format.image_height;
    format->pixel_width = ov->format.pixel_width;
    format->pixel_height = ov->format.pixel_height;
    gavl_video_format_set_frame_size(format, 0, 0);

    }
 
  if(ov->plugin->add_overlay_stream)
    {
    /* Try hardware overlay */
    LOCK(ov);
    str->sink_int = ov->plugin->add_overlay_stream(ov->priv, format);
    UNLOCK(ov);
    
    if(str->sink_int)
      {
      bg_log(BG_LOG_INFO, LOG_DOMAIN,
             "Using hardeware overlay for stream %d",
             ov->num_ovl_str-1);
      return str->sink_int;
      }
    }
  /* Software overlay */
  ov->flags |= FLAG_EMULATE_OVL;
  
  bg_log(BG_LOG_INFO, LOG_DOMAIN,
         "Using software overlay for stream %d",
         ov->num_ovl_str - 1);
  
  str->ctx = gavl_overlay_blend_context_create();
  
  gavl_overlay_blend_context_init(str->ctx,
                                  &ov->format, format);
  str->sink_ext = gavl_video_sink_create(NULL, put_overlay, str, format);
  
  gavl_video_format_copy(&str->format, format);
  
  return str->sink_ext;
  }