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diff --git a/ffmpeg/doc/decoders.texi b/ffmpeg/doc/decoders.texi deleted file mode 100644 index 9d9f298..0000000 --- a/ffmpeg/doc/decoders.texi +++ /dev/null @@ -1,202 +0,0 @@ -@chapter Decoders -@c man begin DECODERS - -Decoders are configured elements in FFmpeg which allow the decoding of -multimedia streams. - -When you configure your FFmpeg build, all the supported native decoders -are enabled by default. Decoders requiring an external library must be enabled -manually via the corresponding @code{--enable-lib} option. You can list all -available decoders using the configure option @code{--list-decoders}. - -You can disable all the decoders with the configure option -@code{--disable-decoders} and selectively enable / disable single decoders -with the options @code{--enable-decoder=@var{DECODER}} / -@code{--disable-decoder=@var{DECODER}}. - -The option @code{-codecs} of the ff* tools will display the list of -enabled decoders. - -@c man end DECODERS - -@chapter Video Decoders -@c man begin VIDEO DECODERS - -A description of some of the currently available video decoders -follows. - -@section rawvideo - -Raw video decoder. - -This decoder decodes rawvideo streams. - -@subsection Options - -@table @option -@item top @var{top_field_first} -Specify the assumed field type of the input video. -@table @option -@item -1 -the video is assumed to be progressive (default) -@item 0 -bottom-field-first is assumed -@item 1 -top-field-first is assumed -@end table - -@end table - -@c man end VIDEO DECODERS - -@chapter Audio Decoders -@c man begin AUDIO DECODERS - -@section ffwavesynth - -Internal wave synthetizer. - -This decoder generates wave patterns according to predefined sequences. Its -use is purely internal and the format of the data it accepts is not publicly -documented. - -@section libcelt - -libcelt decoder wrapper. - -libcelt allows libavcodec to decode the Xiph CELT ultra-low delay audio codec. -Requires the presence of the libcelt headers and library during configuration. -You need to explicitly configure the build with @code{--enable-libcelt}. - -@section libgsm - -libgsm decoder wrapper. - -libgsm allows libavcodec to decode the GSM full rate audio codec. Requires -the presence of the libgsm headers and library during configuration. You need -to explicitly configure the build with @code{--enable-libgsm}. - -This decoder supports both the ordinary GSM and the Microsoft variant. - -@section libilbc - -libilbc decoder wrapper. - -libilbc allows libavcodec to decode the Internet Low Bitrate Codec (iLBC) -audio codec. Requires the presence of the libilbc headers and library during -configuration. You need to explicitly configure the build with -@code{--enable-libilbc}. - -@subsection Options - -The following option is supported by the libilbc wrapper. - -@table @option -@item enhance - -Enable the enhancement of the decoded audio when set to 1. The default -value is 0 (disabled). - -@end table - -@section libopencore-amrnb - -libopencore-amrnb decoder wrapper. - -libopencore-amrnb allows libavcodec to decode the Adaptive Multi-Rate -Narrowband audio codec. Using it requires the presence of the -libopencore-amrnb headers and library during configuration. You need to -explicitly configure the build with @code{--enable-libopencore-amrnb}. - -An FFmpeg native decoder for AMR-NB exists, so users can decode AMR-NB -without this library. - -@section libopencore-amrwb - -libopencore-amrwb decoder wrapper. - -libopencore-amrwb allows libavcodec to decode the Adaptive Multi-Rate -Wideband audio codec. Using it requires the presence of the -libopencore-amrwb headers and library during configuration. You need to -explicitly configure the build with @code{--enable-libopencore-amrwb}. - -An FFmpeg native decoder for AMR-WB exists, so users can decode AMR-WB -without this library. - -@section libopus - -libopus decoder wrapper. - -libopus allows libavcodec to decode the Opus Interactive Audio Codec. -Requires the presence of the libopus headers and library during -configuration. You need to explicitly configure the build with -@code{--enable-libopus}. - -@c man end AUDIO DECODERS - -@chapter Subtitles Decoders -@c man begin SUBTILES DECODERS - -@section dvdsub - -This codec decodes the bitmap subtitles used in DVDs; the same subtitles can -also be found in VobSub file pairs and in some Matroska files. - -@subsection Options - -@table @option -@item palette -Specify the global palette used by the bitmaps. When stored in VobSub, the -palette is normally specified in the index file; in Matroska, the palette is -stored in the codec extra-data in the same format as in VobSub. In DVDs, the -palette is stored in the IFO file, and therefore not available when reading -from dumped VOB files. - -The format for this option is a string containing 16 24-bits hexadecimal -numbers (without 0x prefix) separated by comas, for example @code{0d00ee, -ee450d, 101010, eaeaea, 0ce60b, ec14ed, ebff0b, 0d617a, 7b7b7b, d1d1d1, -7b2a0e, 0d950c, 0f007b, cf0dec, cfa80c, 7c127b}. -@end table - -@section libzvbi-teletext - -Libzvbi allows libavcodec to decode DVB teletext pages and DVB teletext -subtitles. Requires the presence of the libzvbi headers and library during -configuration. You need to explicitly configure the build with -@code{--enable-libzvbi}. - -@subsection Options - -@table @option -@item txt_page -List of teletext page numbers to decode. You may use the special * string to -match all pages. Pages that do not match the specified list are dropped. -Default value is *. -@item txt_chop_top -Discards the top teletext line. Default value is 1. -@item txt_format -Specifies the format of the decoded subtitles. The teletext decoder is capable -of decoding the teletext pages to bitmaps or to simple text, you should use -"bitmap" for teletext pages, because certain graphics and colors cannot be -expressed in simple text. You might use "text" for teletext based subtitles if -your application can handle simple text based subtitles. Default value is -bitmap. -@item txt_left -X offset of generated bitmaps, default is 0. -@item txt_top -Y offset of generated bitmaps, default is 0. -@item txt_chop_spaces -Chops leading and trailing spaces and removes empty lines from the generated -text. This option is useful for teletext based subtitles where empty spaces may -be present at the start or at the end of the lines or empty lines may be -present between the subtitle lines because of double-sized teletext charactes. -Default value is 1. -@item txt_duration -Sets the display duration of the decoded teletext pages or subtitles in -miliseconds. Default value is 30000 which is 30 seconds. -@item txt_transparent -Force transparent background of the generated teletext bitmaps. Default value -is 0 which means an opaque (black) background. -@end table - -@c man end SUBTILES DECODERS |