上个月第发布的最新版3.1，特性太多，高亮几个做移动多媒体开发的关注点

• DXVA2-accelerated HEVC Main10 decoding
• fieldhint filter
• loop video filter and aloop audio filter
• Bob Weaver deinterlacing filter
• firequalizer filter
• datascope filter
• bench and abench filters
• ciescope filter
• protocol blacklisting API
• MediaCodec H264 decoding
• VC-2 HQ RTP payload format (draft v1) depacketizer and packetizer
• VP9 RTP payload format (draft v2) packetizer
• AudioToolbox audio decoders
• AudioToolbox audio encoders
• coreimage filter (GPU based image filtering on OSX)
• libdcadec removed
• bitstream filter for extracting DTS core
• ADPCM IMA DAT4 decoder
• musx demuxer
• aix demuxer
• remap filter
• hash and framehash muxers
• colorspace filter
• hdcd filter
• readvitc filter
• VAAPI-accelerated format conversion and scaling
• libnpp/CUDA-accelerated format conversion and scaling
• Duck TrueMotion 2.0 Real Time decoder
• Wideband Single-bit Data (WSD) demuxer
• VAAPI-accelerated H.264/HEVC/MJPEG encoding
• DTS Express (LBR) decoder
• Generic OpenMAX IL encoder with support for Raspberry Pi
• IFF ANIM demuxer & decoder
• Direct Stream Transfer (DST) decoder
• loudnorm filter
• MTAF demuxer and decoder
• MagicYUV decoder
• OpenExr improvements (tile data and B44/B44A support)
• BitJazz SheerVideo decoder
• CUDA CUVID H264/HEVC decoder
• 10-bit depth support in native utvideo decoder
• libutvideo wrapper removed
• YUY2 Lossless Codec decoder
• VideoToolbox H.264 encoder

包括了iOS平台上的硬件编解码AAC,硬件编码H.264，Android平台的硬件解码，树莓派的OpenMAX IL硬编码器。官方强烈建议各位升级 :D。