Today I performed a benchmarking test with MediaCoder iPhone Edition which has got improved support for Intel MSDK recently, by transcoding the same 720p H.264 MKV file to a MP4 file of iPhone 4 profile. In order to obtain transcoded videos with near visual quality, x264 was set to fast preset and Intel MSDK encoder was set to balanced mode. The difference in transcoding speed and CPU utilization is significant. With x264, the CPU utilization is near 100% and the overall transcoding speed is approximately 3.4x (versus playback speed). When using Intel MSDK encoder, with computation off-loaded to CPU built-in GPU, the CPU utilization is near 50% and the overall speed is about 7.9x, which is 2.3 times of that of x264.
- Splitting re-implemented in MediaCoder 0.8.25
- Release notes for MediaCoder 0.8.22
- Segmental Video Encoding is coming!
- AudioCoder 0.8.21 released
- Resolution auto adjustment improved
- Release notes for MediaCoder 0.8.21
- H.265 in MediaCoder?
- Release notes for MediaCoder 0.8.20
- Release notes for MediaCoder 0.8.19
- MediaCoder GPU encoding quality improved practically
- 64-bit CUDA encoding breakage in build 5338 fixed
- MediaCoder 0.8.18.5338 comes with improved CUDA-based encoding
Tags5.1 accelerate audio AVCHD AviSynth benchmark bugfix convert cuda demuxer Dirac direct download flv GPU H.264 IDF Intel IPhone IPOD IPOD Classic IPOD Nano JM level media mobile multi-channel open source p2p profile scripting server Shanghai SourceForge statistics streaming thumbnail time-lapse uPnP video Windows Media WMA WMV x264 YouTube