FFmpeg 3.1.3最新版本发布，FFmpeg是用于录制、转换和流化音频和视频的完整解决方案， 包括 libavcodec ，一套领先的音/视频编解码类库。FFmpeg 在Linux上开发，当可以在大多数操作系统下编译。
FFmpeg 3.1.3 更新日志：
avcodec/exr: Check tile positions
avcodec/aacenc: Tighter input checks
avformat/wtvdec: Check pointer before use
libavcodec/wmalosslessdec: Check the remaining bits
avcodec/adpcm: Fix adpcm_ima_wav padding
avcodec/svq3: fix slice size check
avcodec/diracdec: Check numx/y
avcodec/h2645_parse: fix nal size
avcodec/h2645_parse: Use get_nalsize() in ff_h2645_packet_split()
h2645_parse: only read avc length code at the correct position
h2645_parse: don’t overread AnnexB NALs within an avc stream
avcodec/h264_parser: Factor get_avc_nalsize() out
avcodec/cfhd: Increase minimum band dimension to 3
avcodec/indeo2: check ctab
avformat/swfdec: Fix inflate() error code check
avcodec/rawdec: Fix bits_per_coded_sample checks
vcodec/h2645_parse: Clear buffer padding
avcodec/h2645: Fix NAL unit padding
avfilter/drawutils: Fix single plane with alpha
cmdutils: check for SetDllDirectory() availability
It includes the following library versions:
libavutil 55. 28.100
libavcodec 57. 48.101
libavformat 57. 41.100
libavdevice 57. 0.101
libavfilter 6. 47.100
libavresample 3. 0. 0
libswscale 4. 1.100
libswresample 2. 1.100
libpostproc 54. 0.100
Ubuntu 16.04 与 Ubuntu 14.04 安装 FFmpeg 3.1.3：
sudo add-apt-repository ppa:djcj/hybrid
sudo apt-get update
sudo apt-get install ffmpeg