Release v1.3a

Author: Nabiullin, Oleg

CHANGELOG.md

@@ -1,22 +1,26 @@
-# Intel® Media SDK open source release v1.3!
+# Intel® Media SDK open source release v1.3a!
 **Whats new**
+ - Aligned with [Intel® Media Server Studio 2018 R1](https://software.intel.com/en-us/intel-media-server-studio)
  - Add SCD support
  - API 1.25
- - 1:N performance improvements
- - Support open source [Intel® Media Driver for VAAPI](https://github.com/intel/media-driver)
+ - 1:N joined sessions performance improvements
+ - Supports CentOS 7.4 - providing new features, security updates
  - Multi-Frame encode APIs support added helping to improve transcoding dencity in multi-stream scenario, following known limitations apply to current implementation:
-   - Only H264 Encode is supported at a moment. 
-   - Optimized only for Xeon E3 1500 v5 series.
-   - Performance can be worse than usual single-frame in next known cases: 
-     - 4K resolution encoding.
-     - N:N with HEVC decode present in pipeline.
-     - cases where framerates differs significantly like 30 and 60 for different streams.
+   - Only H264 Encode is supported at a moment
+   - Optimized only for Intel® Iris™ Pro Graphics 580
+   - Performance can be worse than usual single-frame in next known cases:
+     - N:N with HEVC decode present in pipeline
+     - cases where framerates differs significantly like 30 and 60 for different streams
    - Following functionality is not supported with multi-frame encode operation and when set, multiframe will be disabled:
-     - When number of slices is controlled by parameters *NumSlice*, *NumSliceI*, *NumSliceP*, *NumSliceB*.
-     - ‘intra refresh’ parameters are not supported.
-   - MFX_MF_AUTO implemented at a moment.
-   - FEI is not supported by open source driver for multiframe operation, proper SDK behavior is not validated.
-   - Supported MaxNumFrames is 3, Only 2 will be used for next cases: *EnableMBQP*, *EnableMAD*, *EnableMBForceIntra*, *MBDisableSkipMap*.
+     - When number of slices is controlled by parameters *NumSlice*, *NumSliceI*, *NumSliceP*, *NumSliceB*
+     - ‘intra refresh’ parameters are not supported
+   - MFX_MF_AUTO implemented at a moment
+   - FEI is not supported by driver for multiframe operation, proper SDK behavior is not validated.
+   - Supported MaxNumFrames is 3, Only 2 will be used for next cases: *EnableMBQP*, *EnableMAD*, *EnableMBForceIntra*, *MBDisableSkipMap*
+
+**Known limitations**:
+ - Copy from video to system memory with `mfxInitParam::GPUCopy = MFX_GPUCOPY_OFF` leads to performance degradation up to x10 comparing to Intel® Media Server Studio release
+ - Intel® Media Server Studio [limitations](https://software.intel.com/en-us/articles/intel-media-server-studio-release-notes)
 
 # Intel® Media SDK open source release v1.2!
 **Whats new**

README.md

@@ -6,8 +6,10 @@ Intel® Media SDK provides an API to access hardware-accelerated video decode, e
 **Supported video pre-processing filters**: Color Conversion, Deinterlace, Denoise, Resize, Rotate
 
 # Important note
-The current version of Intel Media SDK compatible with the open source [Linux* Graphics Driver](https://github.com/intel/media-driver) [commit f7662547ab9cec5b98d144b0943067e2251825e8](https://github.com/intel/media-driver/commit/f7662547ab9cec5b98d144b0943067e2251825e8).
-Intel Media SDK depends on a special version of [LibVA commit df544cd5a31e54d4cbd33a391795a8747ddaf789](https://github.com/01org/libva/commit/df544cd5a31e54d4cbd33a391795a8747ddaf789).
+
+The current version of Intel Media SDK is only compatible with the Linux* Graphics Driver from [Intel® Media Server Studio for Linux*](https://software.intel.com/en-us/intel-media-server-studio). You need to download and install Intel Media Server Studio 2018 R1 _before_ you build Intel Media SDK.
+Intel Media SDK depends on a special version of [LibVA](https://www.freedesktop.org/wiki/Software/vaapi/) which comes with Intel Media Server Studio installation and is not in upstream, so this version is not compatible with the LibVA/driver available at [01org](https://01.org/linuxgraphics/downloads ).
+
 
 # FAQ
 You can find answers for the most frequently asked questions [here](https://software.intel.com/sites/default/files/managed/c0/8e/intel-media-sdk-open-source-faq.pdf).
@@ -30,7 +32,7 @@ Intel Media SDK is licensed under MIT license. See [LICENSE](./LICENSE) for deta
 See [CONTRIBUTING](./CONTRIBUTING.md) for details. Thank you!
 
 # System requirements
-**Operating System:** CentOS 7.3, Ubuntu 16.04.  
+**Operating System:** CentOS 7.4, Ubuntu 16.04.  
 **Hardware:**
 Intel platforms with integrated graphics:
  - Intel® Xeon® E3-1200 v4 family with C226 chipset
@@ -44,9 +46,9 @@ Please find documentation under the `doc/` folder or navigate to [Intel Media Se
 ## Requirements
  - Git* (with [LFS](https://git-lfs.github.com/) support)
  - Perl* v5.16+
- - Cmake* v2.8+
+ - CMake* v2.8.5+
  - GCC* v4.8+
- - Intel [Media Driver for VAAPI](https://github.com/intel/media-driver)
+ - Intel Media Server Studio 2018 R1
 
 ## Build steps