codecs: h264dec: Add help function of dpb_set_max_num_reorder_frames.

The max_num_reorder_frames can be useful for bump check. We store it
in the DPB and no need for the decoder now.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2373>

1 files changed, 12 insertions, 10 deletions

diff --git a/gst-libs/gst/codecs/gsth264decoder.c b/gst-libs/gst/codecs/gsth264decoder.c
index da70095a6..144249854 100644
--- a/gst-libs/gst/codecs/gsth264decoder.c
+++ b/gst-libs/gst/codecs/gsth264decoder.c
@@ -109,7 +109,6 @@ struct _GstH264DecoderPrivate
   gint max_frame_num;
   gint max_pic_num;
   gint max_long_term_frame_idx;
-  gsize max_num_reorder_frames;
 
   gint prev_frame_num;
   gint prev_ref_frame_num;
@@ -1915,21 +1914,23 @@ gst_h264_decoder_update_max_num_reorder_frames (GstH264Decoder * self,
     GstH264SPS * sps)
 {
   GstH264DecoderPrivate *priv = self->priv;
+  gsize max_num_reorder_frames = 0;
 
   if (sps->vui_parameters_present_flag
       && sps->vui_parameters.bitstream_restriction_flag) {
-    priv->max_num_reorder_frames = sps->vui_parameters.num_reorder_frames;
-    if (priv->max_num_reorder_frames >
-        gst_h264_dpb_get_max_num_frames (priv->dpb)) {
+    max_num_reorder_frames = sps->vui_parameters.num_reorder_frames;
+    if (max_num_reorder_frames > gst_h264_dpb_get_max_num_frames (priv->dpb)) {
       GST_WARNING
           ("max_num_reorder_frames present, but larger than MaxDpbFrames (%d > %d)",
-          (gint) priv->max_num_reorder_frames,
+          (gint) max_num_reorder_frames,
           gst_h264_dpb_get_max_num_frames (priv->dpb));
 
-      priv->max_num_reorder_frames = 0;
+      max_num_reorder_frames = 0;
       return FALSE;
     }
 
+    gst_h264_dpb_set_max_num_reorder_frames (priv->dpb, max_num_reorder_frames);
+
     return TRUE;
   }
 
@@ -1943,17 +1944,18 @@ gst_h264_decoder_update_max_num_reorder_frames (GstH264Decoder * self,
       case 110:
       case 122:
       case 244:
-        priv->max_num_reorder_frames = 0;
+        max_num_reorder_frames = 0;
         break;
       default:
-        priv->max_num_reorder_frames =
-            gst_h264_dpb_get_max_num_frames (priv->dpb);
+        max_num_reorder_frames = gst_h264_dpb_get_max_num_frames (priv->dpb);
         break;
     }
   } else {
-    priv->max_num_reorder_frames = gst_h264_dpb_get_max_num_frames (priv->dpb);
+    max_num_reorder_frames = gst_h264_dpb_get_max_num_frames (priv->dpb);
   }
 
+  gst_h264_dpb_set_max_num_reorder_frames (priv->dpb, max_num_reorder_frames);
+
   return TRUE;
 }