@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:
Binary compressed fingerprint
@item base64
-Base64 compressed fingerprint
+Base64 compressed fingerprint @emph{(default)}
@end table
@item -single_file @var{single_file}
Enable (1) or disable (0) storing all segments in one file, accessed using byte ranges.
@item -single_file_name @var{file_name}
-DASH-templated name to be used for baseURL. Implies @var{single_file} set to "1".
+DASH-templated name to be used for baseURL. Implies @var{single_file} set to "1". In the template, "$ext$" is replaced with the file name extension specific for the segment format.
@item -init_seg_name @var{init_name}
-DASH-templated name to used for the initialization segment. Default is "init-stream$RepresentationID$.m4s"
+DASH-templated name to used for the initialization segment. Default is "init-stream$RepresentationID$.$ext$". "$ext$" is replaced with the file name extension specific for the segment format.
@item -media_seg_name @var{segment_name}
-DASH-templated name to used for the media segments. Default is "chunk-stream$RepresentationID$-$Number%05d$.m4s"
+DASH-templated name to used for the media segments. Default is "chunk-stream$RepresentationID$-$Number%05d$.$ext$". "$ext$" is replaced with the file name extension specific for the segment format.
@item -utc_timing_url @var{utc_url}
URL of the page that will return the UTC timestamp in ISO format. Example: "https://time.akamai.com/?iso"
@item method @var{method}
key=value parameters. Values containing @code{:} special characters must be
escaped.
-@item dash_segment_type @var{dash_segment_type}
+@item -dash_segment_type @var{dash_segment_type}
Possible values:
+@item auto
+If this flag is set, the dash segment files format will be selected based on the stream codec. This is the default mode.
+
@item mp4
-If this flag is set, the dash segment files will be in in ISOBMFF format. This is the default format.
+If this flag is set, the dash segment files will be in in ISOBMFF format.
@item webm
If this flag is set, the dash segment files will be in in WebM format.
+@item -ignore_io_errors @var{ignore_io_errors}
+Ignore IO errors during open and write. Useful for long-duration runs with network output.
+
@end table
@anchor{framecrc}
@table @samp
@item mpegts
-If this flag is set, the hls segment files will format to mpegts.
-the mpegts files is used in all hls versions.
+Output segment files in MPEG-2 Transport Stream format. This is
+compatible with all HLS versions.
@item fmp4
-If this flag is set, the hls segment files will format to fragment mp4 looks like dash.
-the fmp4 files is used in hls after version 7.
+Output segment files in fragmented MP4 format, similar to MPEG-DASH.
+fmp4 files may be used in HLS version 7 and above.
@end table
@item hls_fmp4_init_filename @var{filename}
-set filename to the fragment files header file, default filename is @file{init.mp4}.
+Set filename to the fragment files header file, default filename is @file{init.mp4}.
When @code{var_stream_map} is set with two or more variant streams, the
@var{filename} pattern must contain the string "%v", this string specifies