encoder: h264: fix MVC pipeline hang while encoding with B-frames.

Since we are encoding each view independently from each other, we
need a higher number of pre-allocated surfaces to be used as the
reconstructed frames. For Stereo High profile encoding, this means
to effectively double the number of frames to be stored in the DPB.

diff --git a/gst-libs/gst/vaapi/gstvaapiencoder_h264.c b/gst-libs/gst/vaapi/gstvaapiencoder_h264.c
index cb88c97..6930ec3 100644 (file)
--- a/gst-libs/gst/vaapi/gstvaapiencoder_h264.c
+++ b/gst-libs/gst/vaapi/gstvaapiencoder_h264.c
@@ -2321,7 +2321,7 @@ set_context_info (GstVaapiEncoder * base_encoder)
 
   base_encoder->num_ref_frames =
       ((encoder->num_bframes ? 2 : 1) + DEFAULT_SURFACES_COUNT)
-      * encoder->view_idx;
+      * encoder->num_views;
 
   /* Only YUV 4:2:0 formats are supported for now. This means that we
      have a limit of 3200 bits per macroblock. */