al_create_sample
ALLEGRO_SAMPLE *al_create_sample(void *buf, unsigned int samples,
unsigned int freq, ALLEGRO_AUDIO_DEPTH depth,
ALLEGRO_CHANNEL_CONF chan_conf, bool free_buf)
Create a sample data structure from the supplied buffer. If free_buf is true then the buffer will be freed with al_free when the sample data structure is destroyed. For portability (especially Windows), the buffer should have been allocated with al_malloc. Otherwise you should free the sample data yourself.
To allocate a buffer of the correct size, you can use something like this:
sample_size = al_get_channel_count(chan_conf) * al_get_audio_depth_size(depth);
bytes = samples * sample_size;
buffer = al_malloc(bytes);See also: al_destroy_sample, ALLEGRO_AUDIO_DEPTH, ALLEGRO_CHANNEL_CONF
Examples: ex_acodec, ex_kcm_direct, ex_mixer_chain
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