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ffmpeg: convert to new channel layout-API

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Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2021-09-02 21:04:30 -03:00
parent 53d60aafaf
commit 987763ac35
7 changed files with 144 additions and 81 deletions
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22
doc/utils.texi
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@ -721,20 +721,28 @@ FL+FR+FC+BL+BR+BC+SL+SR+WL+WR+TBL+TBR+TBC+TFC+TFL+TFR
DL+DR
@end table
A custom channel layout can be specified as a sequence of terms, separated by
'+' or '|'. Each term can be:
A custom channel layout can be specified as a sequence of terms, separated by '+'.
Each term can be:
@itemize
@item
the name of a single channel (e.g. @samp{FL}, @samp{FR}, @samp{FC}, @samp{LFE}, etc.),
each optionally containing a custom name after a '@@', (e.g. @samp{FL@@Left},
@samp{FR@@Right}, @samp{FC@@Center}, @samp{LFE@@Low_Frequency}, etc.)
@end itemize
A standard channel layout can be specified by the following:
@itemize
@item
the name of a single channel (e.g. @samp{FL}, @samp{FR}, @samp{FC}, @samp{LFE}, etc.)
@item
the name of a standard channel layout (e.g. @samp{mono},
@samp{stereo}, @samp{4.0}, @samp{quad}, @samp{5.0}, etc.)
@item
the name of a single channel (e.g. @samp{FL}, @samp{FR}, @samp{FC}, @samp{LFE}, etc.)
@item
a number of channels, in decimal, followed by 'c', yielding the default channel
layout for that number of channels (see the function
@code{av_get_default_channel_layout}). Note that not all channel counts have a
@code{av_channel_layout_default}). Note that not all channel counts have a
default layout.
@item
@ -751,7 +759,7 @@ Before libavutil version 53 the trailing character "c" to specify a number of
channels was optional, but now it is required, while a channel layout mask can
also be specified as a decimal number (if and only if not followed by "c" or "C").
See also the function @code{av_get_channel_layout} defined in
See also the function @code{av_channel_layout_from_string} defined in
@file{libavutil/channel_layout.h}.
@c man end SYNTAX