OGMRip Reference Manual: Plugins System

## Plugins System Plugins System — Functions for manipulating the plugins |

## Functions

void | (*OGMRipPluginFunc) ()
gint | (*OGMRipPluginCmpFunc) ()
void | ogmrip_plugin_init ()
void | ogmrip_plugin_uninit ()
gint | ogmrip_plugin_get_n_containers ()
void | ogmrip_plugin_foreach_container ()
GType | ogmrip_plugin_find_container ()
GType | ogmrip_plugin_get_nth_container ()
const gchar * | ogmrip_plugin_get_container_name ()
gint | ogmrip_plugin_get_container_index ()
gboolean | ogmrip_plugin_get_container_bframes ()
GModule * | ogmrip_plugin_get_container_module ()
gint | ogmrip_plugin_get_container_max_audio ()
gint | ogmrip_plugin_get_container_max_subp ()
GType | ogmrip_plugin_get_container_by_name ()
gint | ogmrip_plugin_get_n_video_codecs ()
void | ogmrip_plugin_foreach_video_codec ()
GType | ogmrip_plugin_find_video_codec ()
GType | ogmrip_plugin_get_nth_video_codec ()
const gchar * | ogmrip_plugin_get_video_codec_name ()
gint | ogmrip_plugin_get_video_codec_index ()
gint | ogmrip_plugin_get_video_codec_format ()
gint | ogmrip_plugin_get_video_codec_passes ()
gint | ogmrip_plugin_get_video_codec_threads ()
GModule * | ogmrip_plugin_get_video_codec_module ()
GType | ogmrip_plugin_get_video_codec_by_name ()
gint | ogmrip_plugin_get_n_audio_codecs ()
void | ogmrip_plugin_foreach_audio_codec ()
GType | ogmrip_plugin_find_audio_codec ()
GType | ogmrip_plugin_get_nth_audio_codec ()
const gchar * | ogmrip_plugin_get_audio_codec_name ()
gint | ogmrip_plugin_get_audio_codec_index ()
gint | ogmrip_plugin_get_audio_codec_format ()
GModule * | ogmrip_plugin_get_audio_codec_module ()
GType | ogmrip_plugin_get_audio_codec_by_name ()
gint | ogmrip_plugin_get_n_subp_codecs ()
void | ogmrip_plugin_foreach_subp_codec ()
GType | ogmrip_plugin_find_subp_codec ()
GType | ogmrip_plugin_get_nth_subp_codec ()
const gchar * | ogmrip_plugin_get_subp_codec_name ()
gint | ogmrip_plugin_get_subp_codec_index ()
gint | ogmrip_plugin_get_subp_codec_format ()
gboolean | ogmrip_plugin_get_subp_codec_text ()
GModule * | ogmrip_plugin_get_subp_codec_module ()
GType | ogmrip_plugin_get_subp_codec_by_name ()
gboolean | ogmrip_plugin_can_contain_video ()
gboolean | ogmrip_plugin_can_contain_audio ()
gboolean | ogmrip_plugin_can_contain_subp ()
gboolean | ogmrip_plugin_can_contain_format ()
gboolean | ogmrip_plugin_can_contain_n_audio ()
gboolean | ogmrip_plugin_can_contain_n_subp ()

## Types and Values

struct | OGMRipVideoPlugin
struct | OGMRipAudioPlugin
struct | OGMRipSubpPlugin
struct | OGMRipContainerPlugin
enum | OGMRipPluginError

## Includes

    #include <ogmrip-plugin.h>

## Description

## Functions

### OGMRipPluginFunc ()

    void
    (*OGMRipPluginFunc) (GType type,
                         const gchar *name,
                         const gchar *description,
                         gpointer data);

Specifies the type of functions passed to `ogmrip_plugin_foreach_container()`, `ogmrip_plugin_foreach_video_codec()`, `ogmrip_plugin_foreach_audio_codec()`, and `ogmrip_plugin_foreach_subp_codec()`.

#### Parameters

type | The type of the plugin |
name | The name of the plugin |
description | The description of the plugin |
data | The user data |

### OGMRipPluginCmpFunc ()

    gint
    (*OGMRipPluginCmpFunc) (GType type,
                            const gchar *name,
                            const gchar *description,
                            gconstpointer data);

Specifieѕ the type of functions passed to `ogmrip_plugin_find_container()`, `ogmrip_plugin_find_video_codec()`, `ogmrip_plugin_find_audio_codec()`, and `ogmrip_plugin_find_subp_codec()`.

#### Parameters

type | The type of the plugin |
name | The name of the plugin |
description | The description of the plugin |
data | The user data |

#### Returns

0 when the expected plugin is found

### ogmrip_plugin_init ()

    void
    ogmrip_plugin_init (void);

Initializes the plugin system.

### ogmrip_plugin_uninit ()

    void
    ogmrip_plugin_uninit (void);

Uninitializes the plugin system.

### ogmrip_plugin_get_n_containers ()

    gint
    ogmrip_plugin_get_n_containers (void);

Gets the number of container plugins.

#### Returns

the number of container plugins

### ogmrip_plugin_foreach_container ()

    void
    ogmrip_plugin_foreach_container (OGMRipPluginFunc func,
                                     gpointer data);

Calls a function for each container plugin.

#### Parameters

func | The function to call with each container plugin's data |
data | User data to pass to the function |

### ogmrip_plugin_find_container ()

    GType
    ogmrip_plugin_find_container (OGMRipPluginCmpFunc func,
                                  gconstpointer data);

Finds a container using the supplied function.

#### Parameters

func | The function to call for each container plugin. It should return 0 when the desired container is found |
data | User data passed to the function |

#### Returns

The type of the container, or `G_TYPE_NONE`

### ogmrip_plugin_get_nth_container ()

    GType
    ogmrip_plugin_get_nth_container (guint n);

Gets the container at the given position.

#### Parameters

n | The index of the container |

#### Returns

The type of the container, or `G_TYPE_NONE`

### ogmrip_plugin_get_container_name ()

    const gchar *
    ogmrip_plugin_get_container_name (GType container);

Gets the name of the given container.

#### Parameters

container | A container type |

#### Returns

The name of the container, or NULL

### ogmrip_plugin_get_container_index ()

    gint
    ogmrip_plugin_get_container_index (GType container);

Gets the position of the given container.

#### Parameters

container | A container type |

#### Returns

The index of the container, or -1

### ogmrip_plugin_get_container_bframes ()

    gboolean
    ogmrip_plugin_get_container_bframes (GType container);

Gets whether the given container supports B-frames

#### Parameters

container | A container type |

#### Returns

`TRUE` if the container supports B-frames

### ogmrip_plugin_get_container_module ()

    GModule *
    ogmrip_plugin_get_container_module (GType container);

Gets the GModule associated with `container` .

#### Parameters

container | A container type |

#### Returns

A GModule, or NULL

### ogmrip_plugin_get_container_max_audio ()

    gint
    ogmrip_plugin_get_container_max_audio (GType container);

Returns the number of audio streams the given container can contain.

#### Parameters

container | A container type |

#### Returns

the number of audio streams, or -1

### ogmrip_plugin_get_container_max_subp ()

    gint
    ogmrip_plugin_get_container_max_subp (GType container);

Returns the number of subtitle streams the given container can contain.

#### Parameters

container | A container type |

#### Returns

the number of subtitle streams, or -1

### ogmrip_plugin_get_container_by_name ()

    GType
    ogmrip_plugin_get_container_by_name (const gchar *name);

Gets the container with the given name.

#### Parameters

name | The name of the container |

#### Returns

The type of the container, or `G_TYPE_NONE`

### ogmrip_plugin_get_n_video_codecs ()

    gint
    ogmrip_plugin_get_n_video_codecs (void);

Gets the number of video codec plugins.

#### Returns

the number of video codec plugins

### ogmrip_plugin_foreach_video_codec ()

    void
    ogmrip_plugin_foreach_video_codec (OGMRipPluginFunc func,
                                       gpointer data);

Calls a function for each video codec plugin.

#### Parameters

func | The function to call with each video codec plugin's data |
data | User data to pass to the function |

### ogmrip_plugin_find_video_codec ()

    GType
    ogmrip_plugin_find_video_codec (OGMRipPluginCmpFunc func,
                                    gconstpointer data);

Finds a video codec using the supplied function.

#### Parameters

func | The function to call for each video codec plugin. It should return 0 when the desired video codec is found |
data | User data passed to the function |

#### Returns

The type of the video codec, or `G_TYPE_NONE`

### ogmrip_plugin_get_nth_video_codec ()

    GType
    ogmrip_plugin_get_nth_video_codec (guint n);

Gets the video codec at the given position.

#### Parameters

n | The index of the video codec |

#### Returns

The type of the video codec, or `G_TYPE_NONE`

### ogmrip_plugin_get_video_codec_name ()

    const gchar *
    ogmrip_plugin_get_video_codec_name (GType codec);

Gets the name of the given video codec.

#### Parameters

codec | A video codec type |

#### Returns

The name of the video codec, or NULL

### ogmrip_plugin_get_video_codec_index ()

    gint
    ogmrip_plugin_get_video_codec_index (GType codec);

Gets the position of the given video codec.

#### Parameters

codec | A video codec type |

#### Returns

The index of the video codec, or -1

### ogmrip_plugin_get_video_codec_format ()

    gint
    ogmrip_plugin_get_video_codec_format (GType codec);

Gets the format of the given video codec.

#### Parameters

codec | A video codec type |

#### Returns

The format of the video codec, or NULL

### ogmrip_plugin_get_video_codec_passes ()

    gint
    ogmrip_plugin_get_video_codec_passes (GType codec);

Gets the maximum number of passes the given video codec supports.

#### Parameters

codec | A video codec type |

#### Returns

The maximum number of passes, or -1

### ogmrip_plugin_get_video_codec_threads ()

    gint
    ogmrip_plugin_get_video_codec_threads (GType codec);

Gets the maximum number of threads the given video codec supports.

#### Parameters

codec | A video codec type |

#### Returns

The maximum number of threads, or -1

### ogmrip_plugin_get_video_codec_module ()

    GModule *
    ogmrip_plugin_get_video_codec_module (GType codec);

Gets the GModule associated with `codec` .

#### Parameters

codec | A video codec type |

#### Returns

A GModule, or NULL

### ogmrip_plugin_get_video_codec_by_name ()

    GType
    ogmrip_plugin_get_video_codec_by_name (const gchar *name);

Gets the video codec with the given name.

#### Parameters

name | The name of the video codec |

#### Returns

The type of the video codec, or `G_TYPE_NONE`

### ogmrip_plugin_get_n_audio_codecs ()

    gint
    ogmrip_plugin_get_n_audio_codecs (void);

Gets the number of audio codec plugins.

#### Returns

the number of audio codec plugins

### ogmrip_plugin_foreach_audio_codec ()

    void
    ogmrip_plugin_foreach_audio_codec (OGMRipPluginFunc func,
                                       gpointer data);

Calls a function for each plugin.

#### Parameters

func | The function to call with each plugin's data |
data | User data to pass to the function |

### ogmrip_plugin_find_audio_codec ()

    GType
    ogmrip_plugin_find_audio_codec (OGMRipPluginCmpFunc func,
                                    gconstpointer data);

Finds a audio codec using the supplied function.

#### Parameters

func | The function to call for each audio codec plugin. It should return 0 when the desired audio codec is found |
data | User data passed to the function |

#### Returns

The type of the audio codec, or `G_TYPE_NONE`

### ogmrip_plugin_get_nth_audio_codec ()

    GType
    ogmrip_plugin_get_nth_audio_codec (guint n);

Gets the audio codec at the given position.

#### Parameters

n | The index of the audio codec |

#### Returns

The type of the audio codec, or `G_TYPE_NONE`

### ogmrip_plugin_get_audio_codec_name ()

    const gchar *
    ogmrip_plugin_get_audio_codec_name (GType codec);

Gets the name of the given audio codec.

#### Parameters

codec | An audio codec type |

#### Returns

The name of the audio codec, or NULL

### ogmrip_plugin_get_audio_codec_index ()

    gint
    ogmrip_plugin_get_audio_codec_index (GType codec);

Gets the position of the given audio codec.

#### Parameters

codec | An audio codec type |

#### Returns

The index of the audio codec, or -1

### ogmrip_plugin_get_audio_codec_format ()

    gint
    ogmrip_plugin_get_audio_codec_format (GType codec);

Gets the format of the given audio codec.

#### Parameters

codec | A audio codec type |

#### Returns

The format of the audio codec, or NULL

### ogmrip_plugin_get_audio_codec_module ()

    GModule *
    ogmrip_plugin_get_audio_codec_module (GType codec);

Gets the GModule associated with `codec` .

#### Parameters

codec | A audio codec type |

#### Returns

A GModule, or NULL

### ogmrip_plugin_get_audio_codec_by_name ()

    GType
    ogmrip_plugin_get_audio_codec_by_name (const gchar *name);

Gets the audio codec with the given name.

#### Parameters

name | The name of the audio codec |

#### Returns

The type of the audio codec, or `G_TYPE_NONE`

### ogmrip_plugin_get_n_subp_codecs ()

    gint
    ogmrip_plugin_get_n_subp_codecs (void);

Gets the number of subtitle codec plugins.

#### Returns

the number of subtitle codec plugins

### ogmrip_plugin_foreach_subp_codec ()

    void
    ogmrip_plugin_foreach_subp_codec (OGMRipPluginFunc func,
                                      gpointer data);

Calls a function for each plugin.

#### Parameters

func | The function to call with each plugin's data |
data | User data to pass to the function |

### ogmrip_plugin_find_subp_codec ()

    GType
    ogmrip_plugin_find_subp_codec (OGMRipPluginCmpFunc func,
                                   gconstpointer data);

Finds a subtitle codec using the supplied function.

#### Parameters

func | The function to call for each subtitle codec plugin. It should return 0 when the desired subtitle codec is found |
data | User data passed to the function |

#### Returns

The type of the subtitle codec, or `G_TYPE_NONE`

### ogmrip_plugin_get_nth_subp_codec ()

    GType
    ogmrip_plugin_get_nth_subp_codec (guint n);

Gets the subtitle codec at the given position.

#### Parameters

n | The index of the subtitle codec |

#### Returns

The type of the subtitle codec, or `G_TYPE_NONE`

### ogmrip_plugin_get_subp_codec_name ()

    const gchar *
    ogmrip_plugin_get_subp_codec_name (GType codec);

Gets the name of the given subtitle codec.

#### Parameters

codec | A subtitle codec type |

#### Returns

The name of the subtitle codec, or NULL

### ogmrip_plugin_get_subp_codec_index ()

    gint
    ogmrip_plugin_get_subp_codec_index (GType codec);

Gets the position of the given subtitle codec.

#### Parameters

codec | A subtitle codec type |

#### Returns

The index of the subtitle codec, or -1

### ogmrip_plugin_get_subp_codec_format ()

    gint
    ogmrip_plugin_get_subp_codec_format (GType codec);

Gets the format of the given subtitle codec.

#### Parameters

codec | A subtitle codec type |

#### Returns

The format of the subtitle codec, or NULL

### ogmrip_plugin_get_subp_codec_text ()

    gboolean
    ogmrip_plugin_get_subp_codec_text (GType codec);

Gets whether the given codec outputs text subtitles.

#### Parameters

codec | A subtitle codec type |

#### Returns

`TRUE` if the codec output text subtitles

### ogmrip_plugin_get_subp_codec_module ()

    GModule *
    ogmrip_plugin_get_subp_codec_module (GType codec);

Gets the GModule associated with `codec` .

#### Parameters

codec | A subp codec type |

#### Returns

A GModule, or NULL

### ogmrip_plugin_get_subp_codec_by_name ()

    GType
    ogmrip_plugin_get_subp_codec_by_name (const gchar *name);

Gets the subp codec with the given name.

#### Parameters

name | The name of the subp codec |

#### Returns

The type of the subp codec, or `G_TYPE_NONE`

### ogmrip_plugin_can_contain_video ()

    gboolean
    ogmrip_plugin_can_contain_video (GType container,
                                     GType codec);

Returns whether `container` supports the given video codec.

#### Parameters

container | A container type |
codec | A video codec type |

#### Returns

`TRUE` if `container` supports `type`

### ogmrip_plugin_can_contain_audio ()

    gboolean
    ogmrip_plugin_can_contain_audio (GType container,
                                     GType codec);

Returns whether `container` supports the given audio codec.

#### Parameters

container | A container type |
codec | An audio codec type |

#### Returns

`TRUE` if `container` supports `type`

### ogmrip_plugin_can_contain_subp ()

    gboolean
    ogmrip_plugin_can_contain_subp (GType container,
                                    GType codec);

Returns whether `container` supports the given subtitle codec.

#### Parameters

container | A container type |
codec | A subtitle codec type |

#### Returns

`TRUE` if `container` supports `type`

### ogmrip_plugin_can_contain_format ()

    gboolean
    ogmrip_plugin_can_contain_format (GType container,
                                      OGMRipFormatType format);

Returns whether `container` supports the given format.

#### Parameters

container | A container type |
format | An OGMRipFormatType |

#### Returns

`TRUE` if `container` supports `format`

### ogmrip_plugin_can_contain_n_audio ()

    gboolean
    ogmrip_plugin_can_contain_n_audio (GType container,
                                       guint ncodec);

Returns whether `container` can contain `ncodec` audio streams.

#### Parameters

container | A container type |
ncodec | The number of audio codecs |

#### Returns

`TRUE` if `container` can contain `ncodec` audio streams

### ogmrip_plugin_can_contain_n_subp ()

    gboolean
    ogmrip_plugin_can_contain_n_subp (GType container,
                                      guint ncodec);

Returns whether `container` can contain `ncodec` subtitle streams.

#### Parameters

container | A container type |
ncodec | The number of subtitle codecs |

#### Returns

`TRUE` if `container` can contain `ncodec` subtitle streams

## Types and Values

### struct OGMRipVideoPlugin

    struct OGMRipVideoPlugin {
      GModule *module;
      GType type;
      gchar *name;
      gchar *description;
      OGMRipFormatType format;
      gint passes;
      gint threads;
    };

A structure describing a video codec plugin

#### Members

GModule *`module`; | For internal use only |
GType `type`; | The type of the codec |
gchar *`name`; | The name of the codec |
gchar *`description`; | The description of the codec |
OGMRipFormatType `format`; | The codec output format |
gint `passes`; | The number of passes supported by the codec |
gint `threads`; | The number of threads supported by the codec |

### struct OGMRipAudioPlugin

    struct OGMRipAudioPlugin {
      GModule *module;
      GType type;
      gchar *name;
      gchar *description;
      OGMRipFormatType format;
    };

A structure describing an audio codec plugin

#### Members

GModule *`module`; | For internal use only |
GType `type`; | The type of the codec |
gchar *`name`; | The name of the codec |
gchar *`description`; | The description of the codec |
OGMRipFormatType `format`; | The codec output format |

### struct OGMRipSubpPlugin

    struct OGMRipSubpPlugin {
      GModule *module;
      GType type;
      gchar *name;
      gchar *description;
      OGMRipFormatType format;
      gboolean text;
    };

A structure describing a subtitle codec plugin

#### Members

GModule *`module`; | For internal use only |
GType `type`; | The type of the codec |
gchar *`name`; | The name of the codec |
gchar *`description`; | The description of the codec |
OGMRipFormatType `format`; | The codec output format |
gboolean `text`; | Whether the codec outputs text subtitles |

### struct OGMRipContainerPlugin

    struct OGMRipContainerPlugin {
      GModule *module;
      GType type;
      gchar *name;
      gchar *description;
      gboolean video;
      gboolean bframes;
      gint max_audio;
      gint max_subp;
      gint *formats;
    };

A structure describing a container plugin

#### Members

GModule *`module`; | For internal use only |
GType `type`; | The type of the container |
gchar *`name`; | The name of the container |
gchar *`description`; | The description of the container |
gboolean `video`; | Whether the container requires a video stream |
gboolean `bframes`; | Whether the container supports B-frames |
gint `max_audio`; | The maximum number of audio streams that can be embedded in the container |
gint `max_subp`; | The maximum number of subtitle streams that can be embedded in the container |
gint *`formats`; | A NULL terminated array of OGMRipFormatType supported by the container |

### enum OGMRipPluginError

Error codes returned by `ogmrip_init_plugin()`.

#### Members

OGMRIP_PLUGIN_ERROR_REQ | Some requirements are not met |