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msdkdec: Release occupied surface for MFX_ERR_MORE_DATA

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An output surface is returned but without sync point when when
MFXVideoDECODE_DecodeFrameAsync () returns MFX_ERR_MORE_DATA, this
surface should be released too, otherwise the surface is occupied
and it is easy to exhaust all pre-allocated mfx surfaces.

Example pipeline (input_vp8.webm contains lots of frame with show_frame
set to 0):

gst-launch-1.0 filesrc location=input_vp8.webm ! matroskademux !
msdkvp8dec ! msdkvpp ! fakesink

0:00:05.995959693 19866 0x563f30f14590 ERROR                default
gstmsdkvideomemory.c:77:gst_msdk_video_allocator_get_surface: failed to
get surface available
ERROR: from element
/GstPipeline:pipeline0/GstMatroskaDemux:matroskademux0: Internal data
stream error.
This commit is contained in:
Haihao Xiang 2019-02-02 13:26:32 +08:00
parent 1a96759a34
commit 6c953438f5
2 changed files with 14 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
sys/msdk/gstmsdkdec.c
View file

@ -611,9 +611,12 @@ gst_msdkdec_finish_task (GstMsdkDec * thiz, MsdkDecTask * task)
GST_ERROR_OBJECT (thiz, "failed to do sync operation");
return GST_FLOW_ERROR;
}
}
if (G_LIKELY (task->sync_point || (task->surface && task->decode_only))) {
gboolean decode_only = task->decode_only;
frame = gst_msdkdec_get_oldest_frame (decoder);
task->sync_point = NULL;
l = g_list_find_custom (thiz->decoded_msdk_surfaces, task->surface,
_find_msdk_surface);
@ -634,11 +637,16 @@ gst_msdkdec_finish_task (GstMsdkDec * thiz, MsdkDecTask * task)
}
free_surface (thiz, surface);
task->sync_point = NULL;
task->surface = NULL;
task->decode_only = FALSE;
if (!frame)
return GST_FLOW_FLUSHING;
gst_video_codec_frame_unref (frame);
if (decode_only)
GST_VIDEO_CODEC_FRAME_SET_DECODE_ONLY (frame);
flow = gst_video_decoder_finish_frame (decoder, frame);
return flow;
}
@ -1017,9 +1025,11 @@ gst_msdkdec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame)
break;
}
} else if (status == MFX_ERR_MORE_DATA) {
task->decode_only = TRUE;
thiz->next_task = (thiz->next_task + 1) % thiz->tasks->len;
if (surface->surface->Data.Locked > 0)
surface = NULL;
flow = GST_FLOW_OK;
flow = GST_VIDEO_DECODER_FLOW_NEED_DATA;
break;
} else if (status == MFX_ERR_MORE_SURFACE) {
surface = NULL;

2
sys/msdk/gstmsdkdec.h
View file

@ -113,6 +113,8 @@ struct _MsdkDecTask
{
mfxFrameSurface1 *surface;
mfxSyncPoint sync_point;
gboolean decode_only;
};
GType gst_msdkdec_get_type (void);