From b2e8282a69ba8cb278eecb7697159704d1316c7e Mon Sep 17 00:00:00 2001 From: "Alfred E. Heggestad" <114750+alfredh@users.noreply.github.com> Date: Wed, 17 Sep 2025 12:19:40 +0200 Subject: [PATCH] doc: fix some minor typos in the documentation --- doc/Doxyfile.in | 2 +- doc/draft-ietf-codec-opus.xml | 18 +++++++++--------- doc/opus_in_isobmff.html | 6 +++--- 3 files changed, 13 insertions(+), 13 deletions(-) diff --git a/doc/Doxyfile.in b/doc/Doxyfile.in index 6eef650b2..9dff3868f 100644 --- a/doc/Doxyfile.in +++ b/doc/Doxyfile.in @@ -101,7 +101,7 @@ EXTRACT_PRIVATE = NO # names in lower-case letters. If set to YES, upper-case letters are also # allowed. This is useful if you have classes or files whose names only differ # in case and if your file system supports case sensitive file names. Windows -# (including Cygwin) ands Mac users are advised to set this option to NO. +# (including Cygwin) and Mac users are advised to set this option to NO. # The default value is: system dependent. CASE_SENSE_NAMES = YES diff --git a/doc/draft-ietf-codec-opus.xml b/doc/draft-ietf-codec-opus.xml index 334cad97a..a0f3af5d7 100644 --- a/doc/draft-ietf-codec-opus.xml +++ b/doc/draft-ietf-codec-opus.xml @@ -397,7 +397,7 @@ implementation can add or modify these control parameters without affecting inte important encoder control parameters in the reference encoder are listed below. -
+
Opus supports all bitrates from 6 kb/s to 510 kb/s. All other parameters being equal, higher bitrate results in higher quality. For a frame size of 20 ms, these @@ -412,7 +412,7 @@ are the bitrate "sweet spots" for Opus in various configurations:
-
+
Opus can transmit either mono or stereo frames within a single stream. When decoding a mono frame in a stereo decoder, the left and right channels are @@ -426,7 +426,7 @@ The number of channels encoded can be selected in real-time, but by default the
-
+
The audio bandwidths supported by Opus are listed in . @@ -445,7 +445,7 @@ The audio bandwidth can be explicitly specified in real-time, but by default
-
+
Opus can encode frames of 2.5, 5, 10, 20, 40 or 60 ms. It can also combine multiple frames into packets of up to 120 ms. @@ -459,7 +459,7 @@ For this reason, 20 ms frames are a good choice for most applications.
-
+
There are various aspects of the Opus encoding process where trade-offs can be made between CPU complexity and quality/bitrate. In the reference @@ -477,7 +477,7 @@ resolution and the pitch post-filter.
-
+
Audio codecs often exploit inter-frame correlations to reduce the bitrate at a cost in error propagation: after losing one packet @@ -488,7 +488,7 @@ choose a trade-off between bitrate and amount of error propagation.
-
+
Another mechanism providing robustness against packet loss is the in-band Forward Error Correction (FEC). Packets that are determined to @@ -498,7 +498,7 @@ choose a trade-off between bitrate and amount of error propagation.
-
+
Opus is more efficient when operating with variable bitrate (VBR), which is the default. However, in some (rare) applications, constant bitrate (CBR) @@ -517,7 +517,7 @@ CBR due to the bit reservoir).
-
+
Discontinuous Transmission (DTX) reduces the bitrate during silence or background noise. When DTX is enabled, only one frame is encoded diff --git a/doc/opus_in_isobmff.html b/doc/opus_in_isobmff.html index 2294f4d8a..1f851203a 100644 --- a/doc/opus_in_isobmff.html +++ b/doc/opus_in_isobmff.html @@ -137,7 +137,7 @@ 4.3.2 Opus Specific Box Exactly one Opus Specific Box shall be present in each OpusSampleEntry. The Opus Specific Box contains an OpusDecoderConfigurationRecord which contains the Version field and - this specification defines version 0 of this record. If incompatible changes occured in the fields after + this specification defines version 0 of this record. If incompatible changes occurred in the fields after the Version field within the OpusDecoderConfigurationRecord in the future versions of this specification, another version will be defined. This box refers to Ogg Opus [3] at many parts but all the data are stored as big-endian format. @@ -297,7 +297,7 @@ 4.5.2 Composition on all active tracks (informative) By the application of alternate_group in the Track Header Box, whole audio channels in all active tracks from non-alternate group and/or different alternate group from each other are composited into the presentation. If - an Opus sample consists of multiple Opus bitstreams, it can be splitted into individual Opus bitstreams and + an Opus sample consists of multiple Opus bitstreams, it can be split into individual Opus bitstreams and reconstructed into new Opus samples as long as every Opus bitstream has the same total duration in each Opus sample. This nature can be utilized to encapsulate a single Opus bitstream in each track without breaking the original channel layout. @@ -597,7 +597,7 @@ CoupledCount = 2 ChannelMapping 0 -> 0: front left - 1 -> 4: fron center + 1 -> 4: front center 2 -> 1: front right 3 -> 2: side left 4 -> 3: side right