qsv: Join the derived session to the parent
authorLuca Barbato <lu_zero@gentoo.org>
Sun, 24 Sep 2017 13:54:28 +0000 (13:54 +0000)
committerLuca Barbato <lu_zero@gentoo.org>
Wed, 27 Sep 2017 12:27:34 +0000 (12:27 +0000)
Should improve the performance on multiple transcoding from a single
source.

libavcodec/qsv.c
libavfilter/qsvvpp.c

index a8ae656..96dca14 100644 (file)
@@ -593,6 +593,11 @@ int ff_qsv_init_session_device(AVCodecContext *avctx, mfxSession *psession,
                                       "Error setting a HW handle");
     }
 
+    err = MFXJoinSession(parent_session, session);
+    if (err != MFX_ERR_NONE)
+        return ff_qsv_print_error(avctx, err,
+                                  "Error joining session");
+
     ret = qsv_load_plugins(session, load_plugins, avctx);
     if (ret < 0) {
         av_log(avctx, AV_LOG_ERROR, "Error loading plugins\n");
index 0b639c2..a96cfa6 100644 (file)
@@ -515,6 +515,9 @@ static int init_vpp_session(AVFilterContext *avctx, QSVVPPContext *s)
         if (ret != MFX_ERR_NONE)
             return AVERROR_UNKNOWN;
     }
+    ret = MFXJoinSession(device_hwctx->session, s->session);
+    if (ret != MFX_ERR_NONE)
+        return AVERROR_UNKNOWN;
 
     if (IS_OPAQUE_MEMORY(s->in_mem_mode) || IS_OPAQUE_MEMORY(s->out_mem_mode)) {
         s->opaque_alloc.In.Surfaces   = s->surface_ptrs_in;