On 09/24/2017 09:55 PM, Luca Barbato wrote:
Should improve the performance on multiple transcoding from a single
source.
---
libavcodec/qsv.c | 2 ++
libavfilter/qsvvpp.c | 1 +
2 files changed, 3 insertions(+)
diff --git a/libavcodec/qsv.c b/libavcodec/qsv.c
index 56bfbb33d2..925dfaa4cc 100644
--- a/libavcodec/qsv.c
+++ b/libavcodec/qsv.c
@@ -594,6 +594,8 @@ int ff_qsv_init_session_device(AVCodecContext
*avctx, mfxSession *psession,
"Error setting a HW handle");
}
+ MFXJoinSession(parent_session, session);
+
ret = qsv_load_plugins(session, load_plugins, avctx);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error loading plugins\n");
diff --git a/libavfilter/qsvvpp.c b/libavfilter/qsvvpp.c
index c70050822c..6a38e9f0f9 100644
--- a/libavfilter/qsvvpp.c
+++ b/libavfilter/qsvvpp.c
@@ -516,6 +516,7 @@ static int init_vpp_session(AVFilterContext
*avctx, QSVVPPContext *s)
if (ret != MFX_ERR_NONE)
return AVERROR_UNKNOWN;
}
+ MFXJoinSession(device_hwctx->session, s->session);
if (IS_OPAQUE_MEMORY(s->in_mem_mode) ||
IS_OPAQUE_MEMORY(s->out_mem_mode)) {
s->opaque_alloc.In.Surfaces = s->surface_ptrs_in;
How about using "MFXCloneSession()" to shorten these codes?
In fact, for Linux, "MFXJoinSession()" probably fails here because the
parent_session has the version of {3, 1} (see hwcontext_qsv.c),
but the child_seesion has the version queried by "MFXQueryIMPL", which
always returns the version of current libmfx, such as {20, 1}.
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