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Release Notes |
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============= |
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* 0.7 "The Big Bump" June, 2011 |
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* 0.8 "Forbidden Fruit" |
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General notes |
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------------- |
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This release enables frame-based multithreaded decoding for a number of codecs, |
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including VP8, H.263 and H.264. Additionally, there has been a major cleanup of |
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both internal and external APIs. For this reason, the major versions of all |
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libraries have been bumped. On the one hand, this means that 0.7 can be installed |
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side-by-side with previous releases, on the other hand, in order to benefit |
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from the new features, applications need to be recompiled. |
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Other important changes are additions of decoders including, but not limited to, |
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AMR-WB, single stream LATM/LOAS, G.722 ADPCM, a native VP8 decoder |
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and HE-AACv2. Additionally, many new de/muxers such as WebM in Matroska, Apple |
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HTTP Live Streaming, SAP, IEC 61937 (S/PDIF) have been added. |
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This release continues the API cleanups that have begun with the |
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previous release. While it is binary compatible with 0.7, many parts of |
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the public API were deprecated and will be removed in the git master and |
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later releases. Please consult the doc/APIchanges file to see intended |
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replacements for the deprecated APIs. |
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Furthermore, our work on the 'ffmpeg' command-line tool has resulted in |
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major revisions to its interface. In order to not break existing scripts |
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and applications, we have chosen to introduce a new tool called |
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'avconv', and keep the traditional 'ffmpeg' frontend for end-user's |
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convenience. Please see the Changelog file for details how 'avconv' |
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differs from 'ffmpeg'. |
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Additionally, this release introduces a number of new interesting codecs |
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such as the Apple Prores, Flash Screen Video 2 and Windows Media Image, |
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and muxers such as LATM or CELT in Ogg, among many others. Moreover, our |
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H.264 decoder has been improved to decode 4:2:2 material and our libx264 |
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wrapper now allows to produce 4:2:2 and 4:4:4 video. |
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See the Changelog file for a list of significant changes. |
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@@ -30,23 +37,14 @@ report against the development code following the usual bug reporting guidelines |
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API changes |
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----------- |
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Please see the file doc/APIchanges for programmer-centric information. Note that a |
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lot of long-time deprecated APIs have been removed. Also, a number of additional |
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APIs have been deprecated and are scheduled for removal in the next release. |
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A number of additional APIs have been introduced and some existing |
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functions have been deprecated and are scheduled for removal in the next |
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release. Please see the file doc/APIchanges for details along with |
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similar programmer-centric information. |
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Other notable changes |
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--------------------- |
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- many ARM NEON optimizations |
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- libswscale cleanup started, optimizations should become easier in the future |
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- nonfree libfaad support for AAC decoding removed |
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- 4:4:4 H.264 decoding |
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- 9/10bit H.264 decoding |
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- Win64 Assembler support |
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- native MMSH/MMST support |
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- Windows TV demuxing |
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- native AMR-WB decoding |
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- native GSM-MS decoding |
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- SMPTE 302M decoding |
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- AVS encoding |
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Please see the Changelog file for a more detailed list of changes. |
Reinhard Tartler