Category Archive: News & Updates

MediaCoder 0.8.41 released with NVENC 6.0 (Stanley posted on January 10th, 2016 )

MediaCoder 0.8.41 is released with NVENC 6.0. Two-pass encoding can be used with NVENC in MediaCoder now. Simply set video encoder to NVENC and rate mode to Two-Pass and you are ready to go. In advanced settings, you can find new option for 3 types of NVENC’s two-pass mode.

mc_settings_nvenc_6

What’s New in NVIDIA Video Codec SDK 6.0

NVIDIA Video Codec SDK 6.0 adds following new features.

  • Unified SDK for video encoding and decoding
  • Windows 10 official support
  • Support for H.264 Motion Estimation only mode
  • Support for input surfaces in RGB format
  • Support for SEI and VUI fields for H.265
  • Support for Adaptive Quantization for improved subjective visual quality with H.265 (adaptive quantization for H.264 is already supported)
  • GPUs supported for H.265 (HEVC) encoding
    • GeForce GTX 960, GTX 980. GTX Titan X
    • Quadro M4000, M5000, M6000
    • Tesla M4, M6, M60
  • Various quality and performance improvements in encoding
  • SDK samples no longer require the CUDA toolkit installed in order to build.

MediaCoder + NVENC SDK 5.0 (Stanley posted on February 16th, 2015 )

MediaCoder is finally able to encode with NVENC, NVIDIA’s hardware SIP core that performs H.264/AVC and H.265/HEVC video encoding. NVENC SDK 5.0.1 is used, so NVIDIA GPU driver 347.09 or above is required. The latest version of SDK has added support for HEVC (H.265) encoding on GM20x GPUs (GTX980 and future Quadro/Tesla/GRID platforms based on GM20x GPUs). Following is the description of NVENC from NVIDIA’s official website.

The NVIDIA Encoder (NVENC) API enables software developers to access the high-performance hardware H.264 and HEVC (H.265) video encoder in Kepler and Maxwell class NVIDIA GPUs (See list of supported GPUs below).NVENC provides high-quality video encoding that is faster and more power efficient in comparison to equivalent CUDA-based or CPU-based encoders.  By using dedicated hardware for the video encoding task, the GPU CUDA cores and/or the CPU are available for other compute-intensive tasks.  NVENC on GeForce hardware can support a maximum of 2 concurrent streams per system.  NVENC for GRID, Tesla and certain Quadro GPUs (see below) can support as many streams as possible up to maximum NVENC encoder rate limit and available video memory.

To test NVENC with MediaCoder, please install the latest MediaCoder Full Edition and install the following update.

Once the update installed, NVENC will appear in the video encoder list. Disable video encoder auto selection and choose NVENC and MediaCoder will encode with NVENC. The supported video format is H.264 and H.265 (if you have a GeForce series 9 card). Currently the configuration tab for NVENC is not yet done as the support for NVENC is just initial and is still being worked on. To adjust its parameters, click the “Encoder” button. More parameters will be adjustable in future updates. Have fun with the cutting-edge breezing fast hardware encoding with 10-year old MediaCoder.

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MediaCoder SVE technology now works with H.265 (Stanley posted on February 17th, 2014 )

MediaCoder’s Segmental Video Encoding (SVE) is now working with H.265/HEVC encoding. SVE is a unique techonology in MediaCoder designed to improve the parallelism of those encoders unable to consume 100% CPU power due to the lack of or non-optimal multi-threading implementation. By observation, x265, the H.265/HEVC encoder used in MediaCoder, is not utilizing 100% CPU power on a quad-core i7 processor. That’s when SVE becomes effective in boosting the encoding. Another importance of working SVE with H.265 is that it is the fundamental of future distributive encoding of H.265.

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MediaCoder H.265/HEVC encoding beta testing (Stanley posted on February 13th, 2014 )

MediaCoder H.265 encoding is open for beta testing. For users who want to involve in the beta testing, please download the update package (both x86 and x64) and apply it on the installation of latest MediaCoder 0.8.28. If you haven’t installed MediaCoder or your MediaCoder is out-dated, please go here to download the latest MediaCoder full installer and install MediaCoder with it before applying the update.

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H.265 encoding in MediaCoder, very soon! (Stanley posted on February 9th, 2014 )

I have been working on adding H.265 encoding support to MediaCoder. Today, everything finally gets to work. I encoded a sample video clip (H.265/HE-AAC-V2/MP4, 1280×720 @ 512Kbps). The visual quality is quite amazing. Right click the link (browser can’t play it), “Save As” to download it, and play with latest VLC.

MediaCoder_h265_demo_720p_512kbps.mp4

h265_720p_screenshot
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Splitting re-implemented in MediaCoder 0.8.25 (Stanley posted on August 14th, 2013 )

The splitting function finally comes back. There is no more “Split” mode. To enable splitting, simply go to Time tab for the splitting options (by time and by number of segments). The splitting operation is performed on-the-fly while transcoding is proceeding, so it’s fast.

mc_5550_splitting

There are still some limitations though. Splitting currently does not work with multi-pass encoding and segmental encoding (SVE). The file relocation options are not working when splitting is enabled. These will be improved soon later.

 

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