- public bool add_codec_description_to_tag_list (TagList taglist, string? codec_tag, Caps caps)
Adds a codec tag describing the format specified by caps
to taglist.
- public Caps? codec_utils_caps_from_mime_codec (string codecs_field)
Converts a RFC 6381 compatible codec string to
Caps.
- public string? codec_utils_caps_get_mime_codec (Caps caps)
Converts caps to a RFC 6381 compatible codec string if
possible.
- public bool codec_utils_h265_caps_set_level_tier_and_profile (Caps caps, uint8[] profile_tier_level)
Sets the level, tier and profile in caps if it can be
determined from profile_tier_level.
- public unowned string? codec_utils_h265_get_level (uint8[] profile_tier_level)
Converts the level indication (general_level_idc) in the stream's
profile_tier_level structure into a string.
- public uint8 codec_utils_h265_get_level_idc (string level)
Transform a level string from the caps into the level_idc
- public unowned string? codec_utils_h265_get_profile (uint8[] profile_tier_level)
Converts the profile indication (general_profile_idc) in the
stream's profile_level_tier structure into a string.
- public unowned string? codec_utils_h265_get_tier (uint8[] profile_tier_level)
Converts the tier indication (general_tier_flag) in the stream's
profile_tier_level structure into a string.
- public Caps codec_utils_opus_create_caps (uint32 rate, uint8 channels, uint8 channel_mapping_family, uint8 stream_count, uint8 coupled_count, uint8[]? channel_mapping)
Creates Opus caps from the given parameters.
- public Caps codec_utils_opus_create_caps_from_header (Buffer header, Buffer? comments)
Creates Opus caps from the given OpusHead header and
comment header comments.
- public Buffer codec_utils_opus_create_header (uint32 rate, uint8 channels, uint8 channel_mapping_family, uint8 stream_count, uint8 coupled_count, uint8[]? channel_mapping, uint16 pre_skip, int16 output_gain)
Creates OpusHead header from the given parameters.
- public bool codec_utils_opus_parse_caps (Caps caps, out uint32 rate, out uint8 channels, out uint8 channel_mapping_family, out uint8 stream_count, out uint8 coupled_count, out uint8[] channel_mapping)
Parses Opus caps and fills the different fields with defaults if
possible.
- public bool codec_utils_opus_parse_header (Buffer header, out uint32 rate, out uint8 channels, out uint8 channel_mapping_family, out uint8 stream_count, out uint8 coupled_count, out uint8[] channel_mapping, out uint16 pre_skip, out int16 output_gain)
Parses the OpusHead header.
- public List<EncodingTarget> encoding_list_all_targets (string? categoryname)
List all available
EncodingTarget for the specified category, or all categories if
categoryname is null.
- public List<string> encoding_list_available_categories ()
- public PbUtilsCapsDescriptionFlags get_caps_description_flags (Caps caps)
Returns flags that describe the format of the caps if known.
- public string get_codec_description (Caps caps)
Returns a localised (as far as this is possible) string describing
the media format specified in caps, for use in error dialogs or other messages to be seen by the user.
- public string get_decoder_description (Caps caps)
Returns a localised string describing an decoder for the format
specified in caps, for use in error dialogs or other messages to be seen by the user.
- public string get_element_description (string factory_name)
Returns a localised string describing the given element, for use in
error dialogs or other messages to be seen by the user.
- public string get_encoder_description (Caps caps)
Returns a localised string describing an encoder for the format
specified in caps, for use in error dialogs or other messages to be seen by the user.
- public string? get_file_extension_from_caps (Caps caps)
Returns a possible file extension for the given caps, if known.
- public string get_sink_description (string protocol)
Returns a localised string describing a sink element handling the
protocol specified in protocol, for use in error dialogs or other messages to be seen by the user.
- public string get_source_description (string protocol)
Returns a localised string describing a source element handling the
protocol specified in protocol, for use in error dialogs or other messages to be seen by the user.
- public void init ()
Initialises the base utils support library.
- public InstallPluginsReturn install_plugins_async (string[] details, InstallPluginsContext? ctx, InstallPluginsResultFunc func)
Requests plugin installation without blocking.
- public bool install_plugins_installation_in_progress ()
Checks whether plugin installation (initiated by this application
only) is currently in progress.
- public unowned string install_plugins_return_get_name (InstallPluginsReturn ret)
- public bool install_plugins_supported ()
Checks whether plugin installation is likely to be supported by the
current environment.
- public InstallPluginsReturn install_plugins_sync (string[] details, InstallPluginsContext? ctx)
Requests plugin installation and block until the plugins have been
installed or installation has failed.
- public bool is_missing_plugin_message (Message msg)
Checks whether msg is a missing plugins message.
- public string missing_decoder_installer_detail_new (Caps decode_caps)
- public Message missing_decoder_message_new (Element element, Caps decode_caps)
Creates a missing-plugin message for element to notify
the application that a decoder element for a particular set of (fixed) caps is missing.
- public string missing_element_installer_detail_new (string factory_name)
- public Message missing_element_message_new (Element element, string factory_name)
Creates a missing-plugin message for element to notify
the application that a certain required element is missing.
- public string missing_encoder_installer_detail_new (Caps encode_caps)
- public Message missing_encoder_message_new (Element element, Caps encode_caps)
Creates a missing-plugin message for element to notify
the application that an encoder element for a particular set of (fixed) caps is missing.
- public string missing_plugin_message_get_description (Message msg)
Returns a localised string describing the missing feature, for use
in error dialogs and the like.
- public string missing_plugin_message_get_installer_detail (Message msg)
- public string missing_uri_sink_installer_detail_new (string protocol)
- public Message missing_uri_sink_message_new (Element element, string protocol)
Creates a missing-plugin message for element to notify
the application that a sink element for a particular URI protocol is missing.
- public string missing_uri_source_installer_detail_new (string protocol)
- public Message missing_uri_source_message_new (Element element, string protocol)
Creates a missing-plugin message for element to notify
the application that a source element for a particular URI protocol is missing.
- public void plugins_base_version (out uint major, out uint minor, out uint micro, out uint nano)
Gets the version number of the GStreamer Plugins Base libraries.
- public string plugins_base_version_string ()
This function returns a string that is useful for describing this
version of GStreamer's gst-plugins-base libraries to the outside world: user agent strings, logging, about dialogs ...