How to setup the value of "AsyncDepth",and how to calculate the number of...
What's the meaning of "AsyncDepth" parameter of "mfxVideoParam",is it means how many asynchronous tasks in a session? For example,I create a session has vpp(do color convert & image scale) and enc...
View ArticleProblem encoding interlaced videos with h264
Hi,I'm having problems to get correctly encoded interlaced videos, I'm using for testing the software encoder with ffmpeg muxing, for progressive videos works fine, but interlaced have artifacts both...
View ArticleDecode parameters problem
Hi,I'm trying make a video conference applicaton, in first i had made the encoder module, so it's ready and now i'm working in the decoder.My problem is to set up the mfxVideoParam structure;I know the...
View ArticleCQP and VBR different GopRefDist and GopPicSize
VBR: encqsvInit: GopRefDist 3 GopPicSize 256 NumRefFrame 2CQP: encqsvInit: GopRefDist 4 GopPicSize 32 NumRefFrame 2The SDK seems to use different gop values for CQP and VBR. Is there a special reason...
View Articledoes that mean the gpu is busy
my cpu is i7 HD4000i encode two 1920*1080 and render them this time the cpu is low about 30%but when i add another one the cpU become 70%i am confused does that mean when the gpu is busy ,the...
View ArticleHow to set GOP Header (I frame of GOP) timestamp
Hello,I encoding Raw buffer into Mpeg2-DVD format using IQSV Encoder.File is recorded properly. But I found file is not playing properly in VLC player . In video I found some jerk and in...
View Articlebug in sample encode
Hi, I think there's a bug in SDK 2013 R2 samples.in sample_encode if i use -nv12 in command line - i get wrong output.it seems that the bug is in CSmplYUVReader::LoadNextFrame for ColorFormat...
View ArticleVM Ubuntu
Is it possible to use Intel Media SDK on virtual machine (VMWare Workstation 9.0.2) Ubuntu (12.04 LTS)?When running [install_media.sh] I get the following error:"Error... Cannot get Device id, please...
View ArticleTargetUsage parameter for QSV
Hi,I would like to know if the Target usage parameter change something for h264 QSV encoder or if the parameters is only available for h264 SW encoder? For SW I see CPU difference but for QSV it is not...
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HW Init/Close Decode Memory leak with MSDK 2013, MSDK 2013 R2
I found that init HW decoding and then closing it, lead to memory leak. I saw ealier posts about leaks, but not sure if it have the same nature.Here is code to reproduce issue: static size_t...
View ArticleH264 QSV encoder with GopRefDist = 1 or 2 issue
Hi,I try to encode h264 1080i files with your QSV h264 encoder. If I set GopRefDist equal to 1 or 2 I receive a MFX_ERR_DEVICE_FAILED on the SyncOperation() Call . If I try same setting with the SW...
View Articlequicksync support for sandy bridge
I'm curious if it's possible to get hw quicksync encoding on a sandy bridge chip (i7 2860QM) using the latest version of the SDK. When I run sys_analzer.exe it shows I only have hw support for the SDK...
View ArticleQuickSync encoding performance (Haswell)
Hello,I'm trying to encode a video 2048x2048 @ 25Hz using the last generation of Intel processor Haswell (i7-4770).The technical specs said that Haswell processor can encode 4K videos @ 25fps....
View ArticleSynchronous decode with a single frame allocation
I'm integrating Intel Media SDK decoding into an App that currently performs decode synchronously by passing a compressed frame as inputand expects an uncompressed frame as an output into a provided...
View Articleencoding mpeg2 in Media SDK 2013 R2.
when I encode h264 stream , mfxBitstream->FrameType has I frame output,but when I encode mpeg2 ,I can not get frame type MFX_FRAMETYPE_I,what is wrong?I am useing the sample_encode in Media SDK 2013...
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MFX_ERR_UNKNOWN returned from MFXVideoDECODE_Init under Windows 7 and D3D11
Hi,I encountered a problem calling MFXVideoDECODE_Init with hardware acceleration under Windows 7 and D3D11 using the latest HD2000 driver and Media SDK 2013 R2. The function returns MFX_ERR_UNKNOWN...
View ArticleMore than one H.264 stream
Hi all!Media SDK tutorial provides with samples for using D3D acceleration for decoding and for decoding several streams simultaneously via OpenMP.But is it possible to use D3D performance improvement...
View Articletrellis mode performance
Hello,I observed 1-2% bitrate improvement when setting trellis (for I or IP frames, SD/HD, cqp, best quality, 12:2 GOP) using modified sample_encode. No improvement measured when trellis is enabled for...
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