| @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. |
| |
| @c man end AUDIO DECODERS |
