Hi,
I have Ubuntu 14.04 installed on a machine with an Intel i7-4700EQ processor and an Intel Haswell Mobile integrated graphics card.
I've followed the Intel Media Server Studio 2016 community edition installation steps for a generic Linux OS described in the Media Server Studio Getting Started Guide. I was able to run the generic install script without any errors, rebuild libdrm (using switch --prefix=/usr/local) and libva (using switches --prefix=/usr/local and --with-drivers-path=/opt/intel/mediasdk/lib64) successfully, and patch and build the 3.14.5 Linux kernel. "Uname -r" confirms I am using the proper kernel, "lsmod" confirms I have the i915 driver loaded and running. Vainfo reports VA-API version 0.99.0, driver name 'iHD', Driver version 16.4.4.47109-ubit, return codes of 0 for va_getDriverName() and va_openDriver(), and gives a list of entry points for various VAProfiles. I am able to successfully encode h264 video files using the sample_multi_transcode binary using both in the MediaSamples folder using both -hw and -sw switches.
I compiled and installed mfx_dispatch from the source code in this github repo https://github.com/lu-zero/mfx_dispatch using switches --prefix=/usr and --enable-shared without any issues. I compiled and installed ffmpeg from the official github repo https://github.com/FFmpeg/FFmpeg, with switches --enable-gpl --enable-libmfx --enable-ffplay --enable-opencl --enable-nonfree --enable-libmfx --enable-pthreads --enable-pic --enable-shared --extra-cflags=-fPIC --extra-ldexeflags=-pie, again without any issues. Running the command "ffmpeg -hwaccels" lists qsv and vaapi as available, and running "ffmpeg -codecs | grep qsv" gives the expected list of _qsv codecs. However, when I run "ffmpeg -i ~/MediaServerStudio/MediaSamples/content/test_stream.264 -an -v:c h264_qsv out.mp4" I get an message saying "Error initializing internal MFX session". I get the same error attempting to encode with other _qsv codecs, but am able to encode the video successfully with ffmpeg using the software h264 codec libx264.
Strace of the failed ffmpeg encoding shows that /usr/lib, /lib, and /usr/local/lib are being searched for libmfxhw64.so, and that libmfxh464.so is not being found. libmfxh264.so is located in /opt/intel/mediasdk/lib64 and is a symboilc link to /opt/intel/mediasdk/lib64/libmfxhw64-p.so.1.17. I've tried linking /opt/intel/mediasdk/lib64 to /lib, /usr/lib, and /usr/local/lib with no success.
I've been stuck on this for several weeks and any advice you can give would be appreciated.