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Fix documentation for -ar and -ac.

This commit is contained in:
Carl Eugen Hoyos 2011-06-16 23:16:58 +02:00
parent 5fb67d8039
commit 5ad05dd500
1 changed files with 3 additions and 6 deletions
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doc/ffmpeg.texi
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@ -557,10 +557,8 @@ The timestamps must be specified in ascending order.
@item -aframes @var{number}
Set the number of audio frames to record.
@item -ar @var{freq}
Set the audio sampling frequency. For input streams it is set by
default to 44100 Hz, for output streams it is set by default to the
frequency of the input stream. If the input file has audio streams
with different frequencies, the behaviour is undefined.
Set the audio sampling frequency. there is no default for input streams,
for output streams it is set by default to the frequency of the input stream.
@item -ab @var{bitrate}
Set the audio bitrate in bit/s (default = 64k).
@item -aq @var{q}
@ -568,8 +566,7 @@ Set the audio quality (codec-specific, VBR).
@item -ac @var{channels}
Set the number of audio channels. For input streams it is set by
default to 1, for output streams it is set by default to the same
number of audio channels in input. If the input file has audio streams
with different channel count, the behaviour is undefined.
number of audio channels in input.
@item -an
Disable audio recording.
@item -acodec @var{codec}