# GstAudioConverter

This object is used to convert audio samples from one format to another. The object can perform conversion of:

- audio format with optional dithering and noise shaping

- audio samplerate

- audio channels and channel layout

## GstAudioConverter

Opaque GstAudioConverter struct.

Since : 1.8

## GstAudio.AudioConverter

Opaque GstAudio.AudioConverter struct.

Since : 1.8

## GstAudio.AudioConverter

Opaque GstAudio.AudioConverter struct.

Since : 1.8

### Constructors

#### gst_audio_converter_new

    GstAudioConverter *
    gst_audio_converter_new (GstAudioConverterFlags flags,
                             GstAudioInfo * in_info,
                             GstAudioInfo * out_info,
                             GstStructure * config)

Create a new GstAudioConverter that is able to convert between in and out audio formats.

config contains extra configuration options, see `GST_AUDIO_CONVERTER_OPT_*` parameters for details about the options and values.

Parameters:

`flags` –

extra GstAudioConverterFlags

`in_info` –

a source GstAudioInfo

`out_info` –

a destination GstAudioInfo

`config` ( [transfer: full][nullable]) –

a GstStructure with configuration options

Returns ( [nullable]) –

a GstAudioConverter or NULL if conversion is not possible.

#### GstAudio.AudioConverter.prototype.new

    function GstAudio.AudioConverter.prototype.new(flags: GstAudio.AudioConverterFlags, in_info: GstAudio.AudioInfo, out_info: GstAudio.AudioInfo, config: Gst.Structure): {
        // javascript wrapper for 'gst_audio_converter_new'
    }

Create a new GstAudio.AudioConverter that is able to convert between in and out audio formats.

config contains extra configuration options, see `GST_AUDIO_CONVERTER_OPT_*` parameters for details about the options and values.

Parameters:

`flags` (GstAudio.AudioConverterFlags) –

extra GstAudio.AudioConverterFlags

`in_info` (GstAudio.AudioInfo) –

a source GstAudio.AudioInfo

`out_info` (GstAudio.AudioInfo) –

a destination GstAudio.AudioInfo

`config` (Gst.Structure) –

a Gst.Structure with configuration options

Returns (GstAudio.AudioConverter) –

a GstAudio.AudioConverter or null if conversion is not possible.

#### GstAudio.AudioConverter.new

    def GstAudio.AudioConverter.new (flags, in_info, out_info, config):
        #python wrapper for 'gst_audio_converter_new'

Create a new GstAudio.AudioConverter that is able to convert between in and out audio formats.

config contains extra configuration options, see `GST_AUDIO_CONVERTER_OPT_*` parameters for details about the options and values.

Parameters:

`flags` (GstAudio.AudioConverterFlags) –

extra GstAudio.AudioConverterFlags

`in_info` (GstAudio.AudioInfo) –

a source GstAudio.AudioInfo

`out_info` (GstAudio.AudioInfo) –

a destination GstAudio.AudioInfo

`config` (Gst.Structure) –

a Gst.Structure with configuration options

Returns (GstAudio.AudioConverter) –

a GstAudio.AudioConverter or None if conversion is not possible.

### Methods

#### gst_audio_converter_convert

    gboolean
    gst_audio_converter_convert (GstAudioConverter * convert,
                                 GstAudioConverterFlags flags,
                                 gpointer in,
                                 gsize in_size,
                                 gpointer * out,
                                 gsize * out_size)

Convenience wrapper around gst_audio_converter_samples, which will perform allocation of the output buffer based on the result from gst_audio_converter_get_out_frames.

Parameters:

`convert` –

a GstAudioConverter

`flags` –

extra GstAudioConverterFlags

`in` ( [array length=in_size][element-type guint8]) –

input data

`in_size` –

size of in

`out` ( [out][array length=out_size][element-type guint8]) –

a pointer where the output data will be written

`out_size` ( [out]) –

a pointer where the size of out will be written

Returns –

TRUE is the conversion could be performed.

Since : 1.14

#### GstAudio.AudioConverter.prototype.convert

    function GstAudio.AudioConverter.prototype.convert(flags: GstAudio.AudioConverterFlags, in: [ Number ], in_size: Number): {
        // javascript wrapper for 'gst_audio_converter_convert'
    }

Convenience wrapper around GstAudio.AudioConverter.prototype.samples, which will perform allocation of the output buffer based on the result from GstAudio.AudioConverter.prototype.get_out_frames.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

`flags` (GstAudio.AudioConverterFlags) –

extra GstAudio.AudioConverterFlags

`in` ([ Number ]) –

input data

`in_size` (Number) –

size of in

Returns a tuple made of:

(Number ) –

true is the conversion could be performed.

`out` ([ Number ] ) –

true is the conversion could be performed.

`out_size` (Number ) –

true is the conversion could be performed.

Since : 1.14

#### GstAudio.AudioConverter.convert

    def GstAudio.AudioConverter.convert (self, flags, in, in_size):
        #python wrapper for 'gst_audio_converter_convert'

Convenience wrapper around GstAudio.AudioConverter.samples, which will perform allocation of the output buffer based on the result from GstAudio.AudioConverter.get_out_frames.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

`flags` (GstAudio.AudioConverterFlags) –

extra GstAudio.AudioConverterFlags

`in` ([ int ]) –

input data

`in_size` (int) –

size of in

Returns a tuple made of:

(bool ) –

True is the conversion could be performed.

`out` ([ int ] ) –

True is the conversion could be performed.

`out_size` (int ) –

True is the conversion could be performed.

Since : 1.14

#### gst_audio_converter_free

    gst_audio_converter_free (GstAudioConverter * convert)

Free a previously allocated convert instance.

Parameters:

`convert` –

a GstAudioConverter

#### GstAudio.AudioConverter.prototype.free

    function GstAudio.AudioConverter.prototype.free(): {
        // javascript wrapper for 'gst_audio_converter_free'
    }

Free a previously allocated convert instance.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

#### GstAudio.AudioConverter.free

    def GstAudio.AudioConverter.free (self):
        #python wrapper for 'gst_audio_converter_free'

Free a previously allocated convert instance.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

#### gst_audio_converter_get_config

    const GstStructure *
    gst_audio_converter_get_config (GstAudioConverter * convert,
                                    gint * in_rate,
                                    gint * out_rate)

Get the current configuration of convert.

Parameters:

`convert` –

a GstAudioConverter

`in_rate` ( [out][optional]) –

result input rate

`out_rate` ( [out][optional]) –

result output rate

Returns –

(transfer none): a GstStructure that remains valid for as long as convert is valid or until gst_audio_converter_update_config is called.

#### GstAudio.AudioConverter.prototype.get_config

    function GstAudio.AudioConverter.prototype.get_config(): {
        // javascript wrapper for 'gst_audio_converter_get_config'
    }

Get the current configuration of convert.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

Returns a tuple made of:

(Gst.Structure ) –

(transfer none): a Gst.Structure that remains valid for as long as convert is valid or until GstAudio.AudioConverter.prototype.update_config is called.

`in_rate` (Number ) –

(transfer none): a Gst.Structure that remains valid for as long as convert is valid or until GstAudio.AudioConverter.prototype.update_config is called.

`out_rate` (Number ) –

(transfer none): a Gst.Structure that remains valid for as long as convert is valid or until GstAudio.AudioConverter.prototype.update_config is called.

#### GstAudio.AudioConverter.get_config

    def GstAudio.AudioConverter.get_config (self):
        #python wrapper for 'gst_audio_converter_get_config'

Get the current configuration of convert.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

Returns a tuple made of:

(Gst.Structure ) –

(transfer none): a Gst.Structure that remains valid for as long as convert is valid or until GstAudio.AudioConverter.update_config is called.

`in_rate` (int ) –

(transfer none): a Gst.Structure that remains valid for as long as convert is valid or until GstAudio.AudioConverter.update_config is called.

`out_rate` (int ) –

(transfer none): a Gst.Structure that remains valid for as long as convert is valid or until GstAudio.AudioConverter.update_config is called.

#### gst_audio_converter_get_in_frames

    gsize
    gst_audio_converter_get_in_frames (GstAudioConverter * convert,
                                       gsize out_frames)

Calculate how many input frames are currently needed by convert to produce out_frames of output frames.

Parameters:

`convert` –

a GstAudioConverter

`out_frames` –

number of output frames

Returns –

the number of input frames

#### GstAudio.AudioConverter.prototype.get_in_frames

    function GstAudio.AudioConverter.prototype.get_in_frames(out_frames: Number): {
        // javascript wrapper for 'gst_audio_converter_get_in_frames'
    }

Calculate how many input frames are currently needed by convert to produce out_frames of output frames.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

`out_frames` (Number) –

number of output frames

Returns (Number) –

the number of input frames

#### GstAudio.AudioConverter.get_in_frames

    def GstAudio.AudioConverter.get_in_frames (self, out_frames):
        #python wrapper for 'gst_audio_converter_get_in_frames'

Calculate how many input frames are currently needed by convert to produce out_frames of output frames.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

`out_frames` (int) –

number of output frames

Returns (int) –

the number of input frames

#### gst_audio_converter_get_max_latency

    gsize
    gst_audio_converter_get_max_latency (GstAudioConverter * convert)

Get the maximum number of input frames that the converter would need before producing output.

Parameters:

`convert` –

a GstAudioConverter

Returns –

the latency of convert as expressed in the number of frames.

#### GstAudio.AudioConverter.prototype.get_max_latency

    function GstAudio.AudioConverter.prototype.get_max_latency(): {
        // javascript wrapper for 'gst_audio_converter_get_max_latency'
    }

Get the maximum number of input frames that the converter would need before producing output.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

Returns (Number) –

the latency of convert as expressed in the number of frames.

#### GstAudio.AudioConverter.get_max_latency

    def GstAudio.AudioConverter.get_max_latency (self):
        #python wrapper for 'gst_audio_converter_get_max_latency'

Get the maximum number of input frames that the converter would need before producing output.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

Returns (int) –

the latency of convert as expressed in the number of frames.

#### gst_audio_converter_get_out_frames

    gsize
    gst_audio_converter_get_out_frames (GstAudioConverter * convert,
                                        gsize in_frames)

Calculate how many output frames can be produced when in_frames input frames are given to convert.

Parameters:

`convert` –

a GstAudioConverter

`in_frames` –

number of input frames

Returns –

the number of output frames

#### GstAudio.AudioConverter.prototype.get_out_frames

    function GstAudio.AudioConverter.prototype.get_out_frames(in_frames: Number): {
        // javascript wrapper for 'gst_audio_converter_get_out_frames'
    }

Calculate how many output frames can be produced when in_frames input frames are given to convert.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

`in_frames` (Number) –

number of input frames

Returns (Number) –

the number of output frames

#### GstAudio.AudioConverter.get_out_frames

    def GstAudio.AudioConverter.get_out_frames (self, in_frames):
        #python wrapper for 'gst_audio_converter_get_out_frames'

Calculate how many output frames can be produced when in_frames input frames are given to convert.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

`in_frames` (int) –

number of input frames

Returns (int) –

the number of output frames

#### gst_audio_converter_is_passthrough

    gboolean
    gst_audio_converter_is_passthrough (GstAudioConverter * convert)

Returns whether the audio converter will operate in passthrough mode. The return value would be typically input to gst_base_transform_set_passthrough

Parameters:

`convert` –
No description available
Returns –

TRUE when no conversion will actually occur.

Since : 1.16

#### GstAudio.AudioConverter.prototype.is_passthrough

    function GstAudio.AudioConverter.prototype.is_passthrough(): {
        // javascript wrapper for 'gst_audio_converter_is_passthrough'
    }

Returns whether the audio converter will operate in passthrough mode. The return value would be typically input to GstBase.BaseTransform.prototype.set_passthrough

Parameters:

`convert` (GstAudio.AudioConverter) –
No description available
Returns (Number) –

true when no conversion will actually occur.

Since : 1.16

#### GstAudio.AudioConverter.is_passthrough

    def GstAudio.AudioConverter.is_passthrough (self):
        #python wrapper for 'gst_audio_converter_is_passthrough'

Returns whether the audio converter will operate in passthrough mode. The return value would be typically input to GstBase.BaseTransform.set_passthrough

Parameters:

`convert` (GstAudio.AudioConverter) –
No description available
Returns (bool) –

True when no conversion will actually occur.

Since : 1.16

#### gst_audio_converter_reset

    gst_audio_converter_reset (GstAudioConverter * convert)

Reset convert to the state it was when it was first created, clearing any history it might currently have.

Parameters:

`convert` –

a GstAudioConverter

#### GstAudio.AudioConverter.prototype.reset

    function GstAudio.AudioConverter.prototype.reset(): {
        // javascript wrapper for 'gst_audio_converter_reset'
    }

Reset convert to the state it was when it was first created, clearing any history it might currently have.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

#### GstAudio.AudioConverter.reset

    def GstAudio.AudioConverter.reset (self):
        #python wrapper for 'gst_audio_converter_reset'

Reset convert to the state it was when it was first created, clearing any history it might currently have.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

#### gst_audio_converter_samples

    gboolean
    gst_audio_converter_samples (GstAudioConverter * convert,
                                 GstAudioConverterFlags flags,
                                 gpointer * in,
                                 gsize in_frames,
                                 gpointer * out,
                                 gsize out_frames)

Perform the conversion with in_frames in in to out_frames in out using convert.

In case the samples are interleaved, in and out must point to an array with a single element pointing to a block of interleaved samples.

If non-interleaved samples are used, in and out must point to an array with pointers to memory blocks, one for each channel.

in may be NULL, in which case in_frames of silence samples are processed by the converter.

This function always produces out_frames of output and consumes in_frames of input. Use gst_audio_converter_get_out_frames and gst_audio_converter_get_in_frames to make sure in_frames and out_frames are matching and in and out point to enough memory.

Parameters:

`convert` –

a GstAudioConverter

`flags` –

extra GstAudioConverterFlags

`in` –

input frames

`in_frames` –

number of input frames

`out` –

output frames

`out_frames` –

number of output frames

Returns –

TRUE is the conversion could be performed.

#### GstAudio.AudioConverter.prototype.samples

    function GstAudio.AudioConverter.prototype.samples(flags: GstAudio.AudioConverterFlags, in: Object, in_frames: Number, out: Object, out_frames: Number): {
        // javascript wrapper for 'gst_audio_converter_samples'
    }

Perform the conversion with in_frames in in to out_frames in out using convert.

In case the samples are interleaved, in and out must point to an array with a single element pointing to a block of interleaved samples.

If non-interleaved samples are used, in and out must point to an array with pointers to memory blocks, one for each channel.

in may be null, in which case in_frames of silence samples are processed by the converter.

This function always produces out_frames of output and consumes in_frames of input. Use GstAudio.AudioConverter.prototype.get_out_frames and GstAudio.AudioConverter.prototype.get_in_frames to make sure in_frames and out_frames are matching and in and out point to enough memory.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

`flags` (GstAudio.AudioConverterFlags) –

extra GstAudio.AudioConverterFlags

`in` (Object) –

input frames

`in_frames` (Number) –

number of input frames

`out` (Object) –

output frames

`out_frames` (Number) –

number of output frames

Returns (Number) –

true is the conversion could be performed.

#### GstAudio.AudioConverter.samples

    def GstAudio.AudioConverter.samples (self, flags, in, in_frames, out, out_frames):
        #python wrapper for 'gst_audio_converter_samples'

Perform the conversion with in_frames in in to out_frames in out using convert.

In case the samples are interleaved, in and out must point to an array with a single element pointing to a block of interleaved samples.

If non-interleaved samples are used, in and out must point to an array with pointers to memory blocks, one for each channel.

in may be None, in which case in_frames of silence samples are processed by the converter.

This function always produces out_frames of output and consumes in_frames of input. Use GstAudio.AudioConverter.get_out_frames and GstAudio.AudioConverter.get_in_frames to make sure in_frames and out_frames are matching and in and out point to enough memory.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

`flags` (GstAudio.AudioConverterFlags) –

extra GstAudio.AudioConverterFlags

`in` (object) –

input frames

`in_frames` (int) –

number of input frames

`out` (object) –

output frames

`out_frames` (int) –

number of output frames

Returns (bool) –

True is the conversion could be performed.

#### gst_audio_converter_supports_inplace

    gboolean
    gst_audio_converter_supports_inplace (GstAudioConverter * convert)

Returns whether the audio converter can perform the conversion in-place. The return value would be typically input to gst_base_transform_set_in_place

Parameters:

`convert` –

a GstAudioConverter

Returns –

TRUE when the conversion can be done in place.

Since : 1.12

#### GstAudio.AudioConverter.prototype.supports_inplace

    function GstAudio.AudioConverter.prototype.supports_inplace(): {
        // javascript wrapper for 'gst_audio_converter_supports_inplace'
    }

Returns whether the audio converter can perform the conversion in-place. The return value would be typically input to GstBase.BaseTransform.prototype.set_in_place

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

Returns (Number) –

true when the conversion can be done in place.

Since : 1.12

#### GstAudio.AudioConverter.supports_inplace

    def GstAudio.AudioConverter.supports_inplace (self):
        #python wrapper for 'gst_audio_converter_supports_inplace'

Returns whether the audio converter can perform the conversion in-place. The return value would be typically input to GstBase.BaseTransform.set_in_place

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

Returns (bool) –

True when the conversion can be done in place.

Since : 1.12

#### gst_audio_converter_update_config

    gboolean
    gst_audio_converter_update_config (GstAudioConverter * convert,
                                       gint in_rate,
                                       gint out_rate,
                                       GstStructure * config)

Set in_rate, out_rate and config as extra configuration for convert.

in_rate and out_rate specify the new sample rates of input and output formats. A value of 0 leaves the sample rate unchanged.

config can be NULL, in which case, the current configuration is not changed.

If the parameters in config can not be set exactly, this function returns FALSE and will try to update as much state as possible. The new state can then be retrieved and refined with gst_audio_converter_get_config.

Look at the `GST_AUDIO_CONVERTER_OPT_*` fields to check valid configuration option and values.

Parameters:

`convert` –

a GstAudioConverter

`in_rate` –

input rate

`out_rate` –

output rate

`config` ( [transfer: full][allow-none]) –

a GstStructure or NULL

Returns –

TRUE when the new parameters could be set

#### GstAudio.AudioConverter.prototype.update_config

    function GstAudio.AudioConverter.prototype.update_config(in_rate: Number, out_rate: Number, config: Gst.Structure): {
        // javascript wrapper for 'gst_audio_converter_update_config'
    }

Set in_rate, out_rate and config as extra configuration for convert.

in_rate and out_rate specify the new sample rates of input and output formats. A value of 0 leaves the sample rate unchanged.

config can be null, in which case, the current configuration is not changed.

If the parameters in config can not be set exactly, this function returns false and will try to update as much state as possible. The new state can then be retrieved and refined with GstAudio.AudioConverter.prototype.get_config.

Look at the `GST_AUDIO_CONVERTER_OPT_*` fields to check valid configuration option and values.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

`in_rate` (Number) –

input rate

`out_rate` (Number) –

output rate

`config` (Gst.Structure) –

a Gst.Structure or null

Returns (Number) –

true when the new parameters could be set

#### GstAudio.AudioConverter.update_config

    def GstAudio.AudioConverter.update_config (self, in_rate, out_rate, config):
        #python wrapper for 'gst_audio_converter_update_config'

Set in_rate, out_rate and config as extra configuration for convert.

in_rate and out_rate specify the new sample rates of input and output formats. A value of 0 leaves the sample rate unchanged.

config can be None, in which case, the current configuration is not changed.

If the parameters in config can not be set exactly, this function returns False and will try to update as much state as possible. The new state can then be retrieved and refined with GstAudio.AudioConverter.get_config.

Look at the `GST_AUDIO_CONVERTER_OPT_*` fields to check valid configuration option and values.

Parameters:

`convert` (GstAudio.AudioConverter) –

a GstAudio.AudioConverter

`in_rate` (int) –

input rate

`out_rate` (int) –

output rate

`config` (Gst.Structure) –

a Gst.Structure or None

Returns (bool) –

True when the new parameters could be set

## Enumerations

### GstAudioConverterFlags

Extra flags passed to gst_audio_converter_new and gst_audio_converter_samples.

##### Members

`GST_AUDIO_CONVERTER_FLAG_NONE` (0) –

no flag

`GST_AUDIO_CONVERTER_FLAG_IN_WRITABLE` (1) –

the input sample arrays are writable and can be used as temporary storage during conversion.

`GST_AUDIO_CONVERTER_FLAG_VARIABLE_RATE` (2) –

allow arbitrary rate updates with gst_audio_converter_update_config.

### GstAudio.AudioConverterFlags

Extra flags passed to GstAudio.AudioConverter.prototype.new and GstAudio.AudioConverter.prototype.samples.

##### Members

`GstAudio.AudioConverterFlags.NONE` (0) –

no flag

`GstAudio.AudioConverterFlags.IN_WRITABLE` (1) –

the input sample arrays are writable and can be used as temporary storage during conversion.

`GstAudio.AudioConverterFlags.VARIABLE_RATE` (2) –

allow arbitrary rate updates with GstAudio.AudioConverter.prototype.update_config.

### GstAudio.AudioConverterFlags

Extra flags passed to GstAudio.AudioConverter.new and GstAudio.AudioConverter.samples.

##### Members

`GstAudio.AudioConverterFlags.NONE` (0) –

no flag

`GstAudio.AudioConverterFlags.IN_WRITABLE` (1) –

the input sample arrays are writable and can be used as temporary storage during conversion.

`GstAudio.AudioConverterFlags.VARIABLE_RATE` (2) –

allow arbitrary rate updates with GstAudio.AudioConverter.update_config.

## Constants

### GST_AUDIO_CONVERTER_OPT_DITHER_METHOD

    #define GST_AUDIO_CONVERTER_OPT_DITHER_METHOD   "GstAudioConverter.dither-method"

GstAudioDitherMethod, The dither method to use when changing bit depth. Default is GST_AUDIO_DITHER_NONE.

### GstAudio.AUDIO_CONVERTER_OPT_DITHER_METHOD

GstAudio.AudioDitherMethod, The dither method to use when changing bit depth. Default is GstAudio.AudioDitherMethod.NONE.

### GstAudio.AUDIO_CONVERTER_OPT_DITHER_METHOD

GstAudio.AudioDitherMethod, The dither method to use when changing bit depth. Default is GstAudio.AudioDitherMethod.NONE.

### GST_AUDIO_CONVERTER_OPT_DITHER_THRESHOLD

    #define GST_AUDIO_CONVERTER_OPT_DITHER_THRESHOLD   "GstAudioConverter.dither-threshold"

Threshold for the output bit depth at/below which to apply dithering.

Default is 20 bit.

Since : 1.22

### GstAudio.AUDIO_CONVERTER_OPT_DITHER_THRESHOLD

Threshold for the output bit depth at/below which to apply dithering.

Default is 20 bit.

Since : 1.22

### GstAudio.AUDIO_CONVERTER_OPT_DITHER_THRESHOLD

Threshold for the output bit depth at/below which to apply dithering.

Default is 20 bit.

Since : 1.22

### GST_AUDIO_CONVERTER_OPT_MIX_MATRIX

    #define GST_AUDIO_CONVERTER_OPT_MIX_MATRIX   "GstAudioConverter.mix-matrix"

GST_TYPE_LIST, The channel mapping matrix.

The matrix coefficients must be between -1 and 1: the number of rows is equal to the number of output channels and the number of columns is equal to the number of input channels.

## Example matrix generation code

To generate the matrix using code:

     GValue v = G_VALUE_INIT;
     GValue v2 = G_VALUE_INIT;
     GValue v3 = G_VALUE_INIT;

     g_value_init (&v2, GST_TYPE_ARRAY);
     g_value_init (&v3, G_TYPE_DOUBLE);
     g_value_set_double (&v3, 1);
     gst_value_array_append_value (&v2, &v3);
     g_value_unset (&v3);
     [ Repeat for as many double as your input channels - unset and reinit v3 ]
     g_value_init (&v, GST_TYPE_ARRAY);
     gst_value_array_append_value (&v, &v2);
     g_value_unset (&v2);
     [ Repeat for as many v2's as your output channels - unset and reinit v2]
     g_object_set_property (G_OBJECT (audiomixmatrix), "matrix", &v);
     g_value_unset (&v);

### GstAudio.AUDIO_CONVERTER_OPT_MIX_MATRIX

GST_TYPE_LIST (not introspectable), The channel mapping matrix.

The matrix coefficients must be between -1 and 1: the number of rows is equal to the number of output channels and the number of columns is equal to the number of input channels.

## Example matrix generation code

To generate the matrix using code:

     GValue v = G_VALUE_INIT;
     GValue v2 = G_VALUE_INIT;
     GValue v3 = G_VALUE_INIT;

     g_value_init (&v2, GST_TYPE_ARRAY);
     g_value_init (&v3, G_TYPE_DOUBLE);
     g_value_set_double (&v3, 1);
     gst_value_array_append_value (&v2, &v3);
     g_value_unset (&v3);
     [ Repeat for as many double as your input channels - unset and reinit v3 ]
     g_value_init (&v, GST_TYPE_ARRAY);
     gst_value_array_append_value (&v, &v2);
     g_value_unset (&v2);
     [ Repeat for as many v2's as your output channels - unset and reinit v2]
     g_object_set_property (G_OBJECT (audiomixmatrix), "matrix", &v);
     g_value_unset (&v);

### GstAudio.AUDIO_CONVERTER_OPT_MIX_MATRIX

GST_TYPE_LIST (not introspectable), The channel mapping matrix.

The matrix coefficients must be between -1 and 1: the number of rows is equal to the number of output channels and the number of columns is equal to the number of input channels.

## Example matrix generation code

To generate the matrix using code:

     GValue v = G_VALUE_INIT;
     GValue v2 = G_VALUE_INIT;
     GValue v3 = G_VALUE_INIT;

     g_value_init (&v2, GST_TYPE_ARRAY);
     g_value_init (&v3, G_TYPE_DOUBLE);
     g_value_set_double (&v3, 1);
     gst_value_array_append_value (&v2, &v3);
     g_value_unset (&v3);
     [ Repeat for as many double as your input channels - unset and reinit v3 ]
     g_value_init (&v, GST_TYPE_ARRAY);
     gst_value_array_append_value (&v, &v2);
     g_value_unset (&v2);
     [ Repeat for as many v2's as your output channels - unset and reinit v2]
     g_object_set_property (G_OBJECT (audiomixmatrix), "matrix", &v);
     g_value_unset (&v);

### GST_AUDIO_CONVERTER_OPT_NOISE_SHAPING_METHOD

    #define GST_AUDIO_CONVERTER_OPT_NOISE_SHAPING_METHOD   "GstAudioConverter.noise-shaping-method"

GstAudioNoiseShapingMethod, The noise shaping method to use to mask noise from quantization errors. Default is GST_AUDIO_NOISE_SHAPING_NONE.

### GstAudio.AUDIO_CONVERTER_OPT_NOISE_SHAPING_METHOD

GstAudio.AudioNoiseShapingMethod, The noise shaping method to use to mask noise from quantization errors. Default is GstAudio.AudioNoiseShapingMethod.NONE.

### GstAudio.AUDIO_CONVERTER_OPT_NOISE_SHAPING_METHOD

GstAudio.AudioNoiseShapingMethod, The noise shaping method to use to mask noise from quantization errors. Default is GstAudio.AudioNoiseShapingMethod.NONE.

### GST_AUDIO_CONVERTER_OPT_QUANTIZATION

    #define GST_AUDIO_CONVERTER_OPT_QUANTIZATION   "GstAudioConverter.quantization"

G_TYPE_UINT, The quantization amount. Components will be quantized to multiples of this value. Default is 1

### GstAudio.AUDIO_CONVERTER_OPT_QUANTIZATION

G_TYPE_UINT (not introspectable), The quantization amount. Components will be quantized to multiples of this value. Default is 1

### GstAudio.AUDIO_CONVERTER_OPT_QUANTIZATION

G_TYPE_UINT (not introspectable), The quantization amount. Components will be quantized to multiples of this value. Default is 1

### GST_AUDIO_CONVERTER_OPT_RESAMPLER_METHOD

    #define GST_AUDIO_CONVERTER_OPT_RESAMPLER_METHOD   "GstAudioConverter.resampler-method"

GstAudioResamplerMethod, The resampler method to use when changing sample rates. Default is GST_AUDIO_RESAMPLER_METHOD_BLACKMAN_NUTTALL.

### GstAudio.AUDIO_CONVERTER_OPT_RESAMPLER_METHOD

GstAudio.AudioResamplerMethod, The resampler method to use when changing sample rates. Default is GstAudio.AudioResamplerMethod.BLACKMAN_NUTTALL.

### GstAudio.AUDIO_CONVERTER_OPT_RESAMPLER_METHOD

GstAudio.AudioResamplerMethod, The resampler method to use when changing sample rates. Default is GstAudio.AudioResamplerMethod.BLACKMAN_NUTTALL.

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