doc: fix typos

Signed-off-by: Lou Logan <lou@lrcd.com>

doc/codecs.texi

@@ -7,7 +7,7 @@ all the encoders and decoders. In addition each codec may support
 so-called private options, which are specific for a given codec.
 
 Sometimes, a global option may only affect a specific kind of codec,
-and may be unsensical or ignored by another, so you need to be aware
+and may be nonsensical or ignored by another, so you need to be aware
 of the meaning of the specified options. Also some options are
 meant only for decoding or encoding.
 

doc/developer.texi

@@ -647,12 +647,12 @@ accordingly].
 @subsection Adding files to the fate-suite dataset
 
 When there is no muxer or encoder available to generate test media for a
-specific test then the media has to be inlcuded in the fate-suite.
+specific test then the media has to be included in the fate-suite.
 First please make sure that the sample file is as small as possible to test the
 respective decoder or demuxer sufficiently. Large files increase network
 bandwidth and disk space requirements.
 Once you have a working fate test and fate sample, provide in the commit
-message or introductionary message for the patch series that you post to
+message or introductory message for the patch series that you post to
 the ffmpeg-devel mailing list, a direct link to download the sample media.
 
 

doc/encoders.texi

@@ -2171,7 +2171,7 @@ Use @var{0} to disable alpha plane coding.
 @subsection Speed considerations
 
 In the default mode of operation the encoder has to honor frame constraints
-(i.e. not produc frames with size bigger than requested) while still making
+(i.e. not produce frames with size bigger than requested) while still making
 output picture as good as possible.
 A frame containing a lot of small details is harder to compress and the encoder
 would spend more time searching for appropriate quantizers for each slice.

doc/indevs.texi

@@ -390,7 +390,7 @@ not work and result in undefined behavior.
 The values @option{auto}, @option{dv} and @option{hdv} are supported.
 
 @item dvbuffer
-Set maxiumum size of buffer for incoming data, in frames. For DV, this
+Set maximum size of buffer for incoming data, in frames. For DV, this
 is an exact value. For HDV, it is not frame exact, since HDV does
 not have a fixed frame size.
 

doc/muxers.texi

@@ -781,7 +781,7 @@ Change the syncpoint usage in nut:
     sensitive and seeking is not possible. Also in general the overhead from
     syncpoints is negligible. Note, -@code{write_index} 0 can be used to disable
     all growing data tables, allowing to mux endless streams with limited memory
-    and wihout these disadvantages.
+    and without these disadvantages.
 @item @var{timestamped} extend the syncpoint with a wallclock field.
 @end table
 The @var{none} and @var{timestamped} flags are experimental.