CM OPUS Decode

The cmOpusDecode is used to decode the audio/x-opus data to audio/x-raw(PCM) data by the OPUS library.

API Instructions

create/destroy

gpointer cm_opus_decode_create();
void cm_opus_decode_destroy(gpointer hd);

start/stop

void cm_opus_decode_start(gpointer hd);
void cm_opus_decode_stop(gpointer hd);

parameters

Set the opus decode option. The default rate of the output data is 48000hz, if need other formats, set the caps str1 that decode supports.

/* @caps_str0 The input fomat, "audio/x-opus,channel-mapping-family=0,..." */
void cm_opus_decode_set_caps_str0(gpointer hd, const gchar* caps_str0);

/* @caps_str1 The output fomat, "audio/x-raw,rate=x,..." */
void cm_opus_decode_set_caps_str1(gpointer hd, const gchar* caps_str1);

/* @return The output format, "audio/x-raw,..." */
const char* cm_opus_decode_get_caps_str(gpointer had);

/*The decode parse the audio/x-raw media information done*/
gboolean cm_opus_decode_is_ready(gpointer hd);

data

Use the way 1 or way 2 to input opus data.

others

Demo

Opus PV to PB Demo

Structure

Get opus data and decode it to PCM data.

Main codes

For more details please refer to the demo file.
Test result

The PCM data can be played on the PC.