const_cast<const uint8_t **>(audio_avframe->data), audio_avframe->nb_samples);
if (out_samples < 0) {
fprintf(stderr, "Audio conversion failed.\n");
const_cast<const uint8_t **>(audio_avframe->data), audio_avframe->nb_samples);
if (out_samples < 0) {
fprintf(stderr, "Audio conversion failed.\n");