Commit 320d7693 authored by Anton Khirnov's avatar Anton Khirnov
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Changelog: document avconv incompatibilities with ffmpeg.

parent 92f1940e
......@@ -6,6 +6,39 @@ version <next>:
- BWF muxer
- Flash Screen Video 2 decoder
- ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
- ffmpeg deprecated, added avconv, which is almost the same for now, except
for a few incompatible changes in the options, which will hopefully make them
easier to use. The changes are:
* -newvideo/-newaudio/-newsubtitle are gone, because they were redundant and
worked in a nonstandard way. -map is sufficient to add streams to output
files.
* -map now has slightly different and more powerful syntax.
+ it's possible to specify stream type. E.g. -map 0:a:2 means 'third
audio stream'.
+ omitting the stream index now maps all the streams of the given
type, not just the first. E.g. -map 0:s maps all the subtitle streams.
+ colons (':') are used to separate file index/stream type/stream
index. Comma (',') is used to separate the sync stream. This is done
for consistency with other options.
+ since -map can now match multiple streams, negative mappings were
introduced. Negative mappings disable some streams from an already
defined map. E.g. '-map 0 -map -0:a:1' means 'map everything except
for the second audio stream'.
* -vcodec/-acodec/-scodec are replaced by -c (or -codec), which
allows to precisely specify target stream(s) consistently with other
options. E.g. '-c:v libx264' sets the codec for all video streams,
'-c:a:0 libvorbis' sets the codec for the first audio stream and '-c
copy' copies all the streams.
* It is now possible to precisely specify which stream should an AVOption
apply to. See the manual for detailed explanation.
* -map_chapters now takes only an input file index and applies to the next
output file. This is consistent with how all the other options work.
* -map_metadata now takes only an input metadata specifier and applies to
the next output file. Output metadata specifier is now part of the option
name, similarly to the AVOptions/map/codec feature above.
* Presets in avconv are disabled, because only libx264 used them and
presets for libx264 can now be specified using a private option
'-preset <presetname>'.
version 0.7:
......
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