package ffmpeg-avutil

You can search for identifiers within the package.

in-package search v0.2.0

ffmpeg-avutil
- Avutil
  - Audio
  - Channel_layout
  - HwContext
  - Log
  - Options
  - Pixel_format
  - Sample_format
  - Subtitle
  - Time_format
  - Video

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Formats for channels layouts.

type t = [

| `Native
| `Mono
| `Stereo
| `_2point1
| `_2_1
| `Surround
| `_3point1
| `_4point0
| `_4point1
| `_2_2
| `Quad
| `_5point0
| `_5point1
| `_5point0_back
| `_5point1_back
| `_6point0
| `_6point0_front
| `Hexagonal
| `_6point1
| `_6point1_back
| `_6point1_front
| `_7point0
| `_7point0_front
| `_7point1
| `_7point1_wide
| `_7point1_wide_back
| `Octagonal
| `Hexadecagonal
| `Stereo_downmix
| `_22point2

]

Channel layout formats.

val find : string -> t

Return a channel layout id that matches name. Raises Not_found otherwise. name can be one or several of the following notations, separated by '+' or '|':

the name of an usual channel layout (mono, stereo, 4.0, quad, 5.0, 5.0(side), 5.1, 5.1(side), 7.1, 7.1(wide), downmix);
the name of a single channel (FL, FR, FC, LFE, BL, BR, FLC, FRC, BC, SL, SR, TC, TFL, TFC, TFR, TBL, TBC, TBR, DL, DR);
a number of channels, in decimal, optionally followed by 'c', yielding the default channel layout for that number of channels;
a channel layout mask, in hexadecimal starting with "0x" (see the AV_CH_* macros).

val get_description : ?channels:int -> t -> string

Return a description of the channel layout.

val get_nb_channels : t -> int

Return the number of channels in the channel layout.

val get_default : int -> t

Return default channel layout for a given number of channels. Raises Not_found if not found.

val get_id : t -> int64

Return the internal ID for a channel layout. This number should be passed as the "channel_layout" opts in Av.new_audio_stream .