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doc: chromaprint

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Add entry in external library list and add details to muxer entry.
This commit is contained in:
Gyan Doshi 2018-12-04 16:34:38 +05:30
parent f176d6587b
commit 8bd7919699
2 changed files with 16 additions and 8 deletions
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6
doc/general.texi
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@ -53,6 +53,12 @@ Go to @url{http://aomedia.org/} and follow the instructions for
installing the library. Then pass @code{--enable-libaom} to configure to
enable it.
@section Chromaprint
FFmpeg can make use of the Chromaprint library for generating audio fingerprints.
It is licensed under LGPL version 2.1. Pass @code{--enable-chromaprint} to configure to
enable it. See @url{https://acoustid.org/chromaprint}.
@section OpenJPEG
FFmpeg can use the OpenJPEG libraries for encoding/decoding J2K videos. Go to

18
doc/muxers.texi
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@ -94,21 +94,23 @@ compatibility with software that only supports a single audio stream in AVI
@anchor{chromaprint}
@section chromaprint
Chromaprint fingerprinter
Chromaprint fingerprinter.
This muxer feeds audio data to the Chromaprint library, which generates
a fingerprint for the provided audio data. It takes a single signed
native-endian 16-bit raw audio stream.
This muxer feeds audio data to the Chromaprint library,
which generates a fingerprint for the provided audio data. See @url{https://acoustid.org/chromaprint}
It takes a single signed native-endian 16-bit raw audio stream of at most 2 channels.
@subsection Options
@table @option
@item silence_threshold
Threshold for detecting silence, ranges from 0 to 32767. -1 for default
(required for use with the AcoustID service).
Threshold for detecting silence, ranges from -1 to 32767. -1 disables silence detection and
is required for use with the AcoustID service. Default is -1.
@item algorithm
Algorithm index to fingerprint with.
Version of algorithm to fingerprint with. Range is 0 to 4. Version 2 requires that silence
detection be enabled. Default is 1.
@item fp_format
Format to output the fingerprint as. Accepts the following options:
@ -120,7 +122,7 @@ Binary raw fingerprint
Binary compressed fingerprint
@item base64
Base64 compressed fingerprint
Base64 compressed fingerprint @emph{(default)}
@end table