gstreamer-audio-0.10

Description:

Content:

Namespaces:

Classes:

AudioClock - AudioClock makes it easy for elements to implement a Clock, they simply need to provide a function that returns the current clock time. This object is internally used to implement the clock in BaseAudioSink. Last reviewed on 2006-09-27 (0.10.12)
AudioFilter - In addition to the setup virtual function, you should also override the GstBaseTransform::transform and/or GstBaseTransform::transform_ip virtual function.
AudioSink - AudioSink class. Override the vmethods to implement functionality.
AudioSrc - AudioSrc class. Override the vmethod to implement functionality.
BaseAudioSink - BaseAudioSink class. Override the vmethod to implement functionality.
BaseAudioSrc - BaseAudioSrc class. Override the vmethod to implement functionality.
RingBuffer - The vmethods that subclasses can override to implement the ringbuffer.
RingBufferSpec - The structure containing the format specification of the ringbuffer.

Enums:

AudioChannelPosition -
AudioFieldFlag - Do not use anymore.
BaseAudioSinkSlaveMethod - Different possible clock slaving algorithms used when the internal audio clock is not selected as the pipeline master clock.
BaseAudioSrcSlaveMethod - Different possible clock slaving algorithms when the internal audio clock was not selected as the pipeline clock.
BufferFormat -
BufferFormatType - The format of the samples in the ringbuffer.
RingBufferSegState - The state of a segment in the ringbuffer.
RingBufferState - The state of the ringbuffer.

Constants:

public const int AUDIO_DEF_RATE
public const unowned string AUDIO_FLOAT_PAD_TEMPLATE_CAPS
public const unowned string AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_CAPS
public const unowned string AUDIO_INT_PAD_TEMPLATE_CAPS
public const unowned string AUDIO_INT_STANDARD_PAD_TEMPLATE_CAPS

Delegates:

public delegate ClockTime AudioClockGetTimeFunc (Clock clock)
public delegate bool AudioMixerFilterFunc (Mixer mixer)
public delegate void RingBufferCallback (RingBuffer rbuf, uchar data, uint len)

Methods:

public weak Buffer audio_buffer_clip (Buffer buffer, Segment segment, int rate, int frame_size)
Clip the the buffer to the given Segment . After calling this function the caller does not own a reference to otherwise the clipped buffer is returned. If the buffer has no timestamp, it is assumed to be inside the segment and is not clipped
public bool audio_check_channel_positions (AudioChannelPosition pos, uint channels)
This functions checks if the given channel positions are valid. Channel positions are valid if:
public List<Element> audio_default_registry_mixer_filter (AudioMixerFilterFunc filter_func, bool first)
Utility function to find audio mixer elements. Will traverse the default plugin registry in order of plugin rank and find usable audio mixer elements. The caller may optionally fine-tune the selection by specifying a filter function. element in the list by setting it to NULL state and calling unref . After that the list itself should be freed using g_list_free.
public ClockTime audio_duration_from_pad_buffer (Pad pad, Buffer buf)
Calculate length in nanoseconds of audio buffer buf based on capabilities of
public AudioChannelPosition audio_fixate_channel_positions (Structure str)
Custom fixate function. Elements that implement some sort of channel conversion algorithm should use this function for fixating on GstAudioChannelPosition properties. It will take care of equal channel positioning (left/right). Caller g_frees the return value. The input properties may be (and are supposed to be) unfixed. Note that this function is mostly a hack because we currently have no way to add default fixation functions for new GTypes. set of AudioChannelPosition values.
public int audio_frame_byte_size (Pad pad)
Calculate byte size of an audio frame.
public long audio_frame_length (Pad pad, Buffer buf)
Calculate length of buffer in frames.
public AudioChannelPosition audio_get_channel_positions (Structure str)
Retrieves a number of (fixed!) audio channel positions from the provided Structure and returns it as a newly allocated array. The caller should g_free this array. The caller should also check that the members in this Structure are indeed "fixed" before calling this function. positions as provided in the given Structure. Returns NULL on error.
public uint audio_iec61937_frame_size (RingBufferSpec spec)
public bool audio_iec61937_payload (uchar src, uint src_n, uchar dst, uint dst_n, RingBufferSpec spec)
public bool audio_is_buffer_framed (Pad pad, Buffer buf)
Check if the buffer size is a whole multiple of the frame size.
public void audio_set_caps_channel_positions_list (Caps caps, AudioChannelPosition pos, int num_positions)
Sets a (possibly non-fixed) list of possible audio channel positions (given in pos) on the given caps. Each of the structures of the caps, after this function has been called, will contain a "channel-positions" field with an array. Each value in the array will contain each of the values given in the pos array. Note that the size of the caps might be increased by this, since each structure with a "channel- positions" field needs to have a fixed "channels" field. The input caps is not required to have this.
public void audio_set_channel_positions (Structure str, AudioChannelPosition pos)
Adds a "channel-positions" field to the given Structure, which will represent the channel positions as given in the provided AudioChannelPosition array.
public void audio_set_structure_channel_positions_list (Structure str, AudioChannelPosition pos, int num_positions)
Sets a (possibly non-fixed) list of possible audio channel positions (given in pos) on the given structure. The structure, after this function has been called, will contain a "channel-positions" field with an array of the size of the "channels" field value in the given structure (note that this means that the channels field in the provided structure should be fixed!). Each value in the array will contain each of the values given in the pos array.
public void audio_structure_set_int (Structure structure, AudioFieldFlag flag)
Do not use anymore.