packetizer: h264: set frame rate from vui when possible

modules/packetizer/h264.c

@@ -757,8 +757,13 @@ static void PutSPS( decoder_t *p_dec, block_t *p_frag )
         p_sys->b_cpb_dpb_delays_present_flag = p_sps->vui.b_cpb_dpb_delays_present_flag;
         p_sys->i_cpb_removal_delay_length_minus1 = p_sps->vui.i_cpb_removal_delay_length_minus1;
         p_sys->i_dpb_output_delay_length_minus1 = p_sps->vui.i_dpb_output_delay_length_minus1;
-    }
 
+        if( p_sps->vui.b_fixed_frame_rate && !p_dec->fmt_out.video.i_frame_rate_base )
+        {
+            p_dec->fmt_out.video.i_frame_rate_base = p_sps->vui.i_num_units_in_tick;
+            p_dec->fmt_out.video.i_frame_rate = p_sps->vui.i_time_scale;
+        }
+    }
     /* We have a new SPS */
     if( !p_sys->b_sps )
         msg_Dbg( p_dec, "found NAL_SPS (sps_id=%d)", p_sps->i_id );