RTP

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Description:

Content:

Classes:

• BaseAudioPayload - Provides a base class for audio RTP payloaders for frame or sample based audio codecs (constant bitrate)
• BaseDepayload - Provides a base class for RTP depayloaders
• BasePayload - Provides a base class for RTP payloaders
• HeaderExtension - Instance struct for a RTP Audio/Video header extension.

Structs:

• Buffer - The GstRTPBuffer helper functions makes it easy to parse and create regular Buffer objects that contain RTP payloads.
• PayloadInfo - Structure holding default payload type information.
• SourceMeta - Meta describing the source(s) of the buffer.

Enums:

• BufferFlags - Additional RTP buffer flags.
• BufferMapFlags - Additional mapping flags for map.
• HeaderExtensionDirection - Direction to which to apply the RTP Header Extension
• HeaderExtensionFlags - Flags that apply to a RTP Audio/Video header extension.
• Payload - Standard predefined fixed payload types.
• Profile - The transfer profile to use.

Constants:

• public const string HDREXT_BASE
• public const string HDREXT_ELEMENT_CLASS
  Constant string used in element classification to signal that this element is a RTP header extension.
• public const string HDREXT_NTP_56
• public const int HDREXT_NTP_56_SIZE
• public const string HDREXT_NTP_64
• public const int HDREXT_NTP_64_SIZE
• public const string HEADER_EXTENSION_URI_METADATA_KEY
• public const int SOURCE_META_MAX_CSRC_COUNT
• public const int VERSION
  The supported RTP version 2.

Methods:

• public unowned SourceMeta? buffer_add_rtp_source_meta (Buffer buffer, uint32? ssrc, uint32? csrc, uint csrc_count)
  Attaches RTP source information to buffer.
• public void buffer_allocate_data (Buffer buffer, uint payload_len, uint8 pad_len, uint8 csrc_count)
• public uint buffer_calc_header_len (uint8 csrc_count)
• public uint buffer_calc_packet_len (uint payload_len, uint8 pad_len, uint8 csrc_count)
• public uint buffer_calc_payload_len (uint packet_len, uint8 pad_len, uint8 csrc_count)
• public int buffer_compare_seqnum (uint16 seqnum1, uint16 seqnum2)
• public uint32 buffer_default_clock_rate (uint8 payload_type)
• public uint64 buffer_ext_timestamp (ref uint64 exttimestamp, uint32 timestamp)
• public bool buffer_get_extension_onebyte_header_from_bytes (Bytes bytes, uint16 bit_pattern, uint8 id, uint nth, out unowned uint8[] data)
• public unowned SourceMeta? buffer_get_rtp_source_meta (Buffer buffer)
  Find the SourceMeta on buffer.
• public bool buffer_map (Buffer buffer, MapFlags flags, out Buffer rtp)
• public Buffer buffer_new_allocate (uint payload_len, uint8 pad_len, uint8 csrc_count)
• public Buffer buffer_new_allocate_len (uint packet_len, uint8 pad_len, uint8 csrc_count)
• public Buffer buffer_new_copy_data (uint8[] data)
• public Buffer buffer_new_take_data (owned uint8[] data)
• public List<ElementFactory> get_header_extension_list ()
  Retrieve all the factories of the currently registered RTP header extensions.
• public bool hdrext_get_ntp_56 (uint8[] data, out uint64 ntptime)
  Reads the NTP time from the data.length NTP-56 extension bytes in data and store the result in ntptime.
• public bool hdrext_get_ntp_64 (uint8[] data, out uint64 ntptime)
  Reads the NTP time from the data.length NTP-64 extension bytes in data and store the result in ntptime.
• public bool hdrext_set_ntp_56 (void* data, uint size, uint64 ntptime)
  Writes the NTP time in ntptime to the format required for the NTP-56 header extension.
• public bool hdrext_set_ntp_64 (void* data, uint size, uint64 ntptime)
  Writes the NTP time in ntptime to the format required for the NTP-64 header extension.
• public unowned PayloadInfo? payload_info_for_name (string media, string encoding_name)
• public unowned PayloadInfo? payload_info_for_pt (uint8 payload_type)
• public Type source_meta_api_get_type ()
• public unowned MetaInfo? source_meta_get_info ()