Prosody RTP processing: API: sm_vmptx_config_codec_silk_mode

Prototype Definition

int sm_vmptx_config_codec_silk_mode(struct sm_vmptx_config_codec_silk_mode_parms *codecp)

Parameters

a structure of the following type:

typedef struct sm_vmptx_config_codec_silk_mode_parms {
	tSMVMPtxId vmptx;					/* in */
	tSM_INT sample_rate;					/* in */
	tSM_INT internal_rate;					/* in */
	tSM_INT bit_rate;					/* in */
	tSM_INT frames_per_packet;				/* in */
	tSM_INT packet_loss;					/* in */
	tSM_INT complexity;					/* in */
	tSM_INT use_fec;					/* in */
	tSM_INT use_dtx;					/* in */
} SM_VMPTX_CONFIG_CODEC_SILK_MODE_PARMS;

Description

Modifies the configuration of the SILK codec.

Fields

vmptx: The VMP[tx] for which to change the codec parameters.
sample_rate: Sample rate of the audio being encoded. This must be the same as that previously specified when sm_vmptx_config_codec_silk() was called to configure the VMP[tx].
internal_rate: Maximum sample rate used internally by the codec. See sm_vmptx_config_codec_silk() for more details.
bit_rate: The target bit rate. See sm_vmptx_config_codec_silk() for more details.
frames_per_packet: The number of frames to send per packet. See sm_vmptx_config_codec_silk() for more details.
packet_loss: An estimate of the current level of packet loss. See sm_vmptx_config_codec_silk() for more details.
complexity: The complexity of the algorithms used. See sm_vmptx_config_codec_silk() for more details.
use_fec: Non-zero to include data for "forward error correction" (FEC). See sm_vmptx_config_codec_silk() for more details.
use_dtx: Non-zero to suppress transmission of data during silence. See sm_vmptx_config_codec_silk() for more details.

Returns

0 if call completed successfully, otherwise a standard error such as:

ERR_SM_DEVERR - device error

This function is part of the Prosody RTP processing API.