FFmpeg 2.1 发布

FFmpeg是一套可以用来记录、转换数字音频、视频，并能将其转化为流的开源计算机程序。它包括了目前领先的音/视频编码库 libavcodec。 FFmpeg是在Linux下开发出来的，但它可以在包括Windows在内的大多数操作系统中编译。这个项目是由Fabrice Bellard发起的，现在由Michael Niedermayer主持。可以轻易地实现多种视频格式之间的相互转换，例如可以将摄录下的视频avi等转成现在视频网站所采用的flv格式。

2013-10-28发布2.1.之前产品线为2.0.2 1.2.4,1.1.5,1.0.7.FFmpeg在视频网站应该是必用的转码工具。

完全改进:

version 2.1:

- aecho filter

- perspective filter ported from libmpcodecs

- ffprobe -show_programs option

- compand filter

- RTMP seek support

- when transcoding with ffmpeg (i.e. not streamcopying), -ss is now accurate

  even when used as an input option. Previous behavior can be restored with

  the -noaccurate_seek option.

- ffmpeg -t option can now be used for inputs, to limit the duration of

  data read from an input file

- incomplete Voxware MetaSound decoder

- read EXIF metadata from JPEG

- DVB teletext decoder

- phase filter ported from libmpcodecs

- w3fdif filter

- Opus support in Matroska

- FFV1 version 1.3 is stable and no longer experimental

- FFV1: YUVA(444,422,420) 9, 10 and 16 bit support

- changed DTS stream id in lavf mpeg ps muxer from 0x8a to 0x88, to be

  more consistent with other muxers.

- adelay filter

- pullup filter ported from libmpcodecs

- ffprobe -read_intervals option

- Lossless and alpha support for WebP decoder

- Error Resilient AAC syntax (ER AAC LC) decoding

- Low Delay AAC (ER AAC LD) decoding

- mux chapters in ASF files

- SFTP protocol (via libssh)

- libx264: add ability to encode in YUVJ422P and YUVJ444P

- Fraps: use BT.709 colorspace by default for yuv, as reference fraps decoder does

- make decoding alpha optional for prores, ffv1 and vp6 by setting

  the skip_alpha flag.

- ladspa wrapper filter

- native VP9 decoder

- dpx parser

- max_error_rate parameter in ffmpeg

- PulseAudio output device

- ReplayGain scanner

- Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)

- Linux framebuffer output device

- HEVC decoder, raw HEVC demuxer, HEVC demuxing in TS, Matroska and MP4

- mergeplanes filter

下载:http://ffmpeg.org/releases/ffmpeg-2.1.tar.bz2

巴特西

FFmpeg 2.1 发布

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