/**
* Finalize MDCT and free allocated memory.
*/
-av_cold void ff_ac3_float_mdct_end(AC3MDCTContext *mdct)
+av_cold void ff_ac3_float_mdct_end(AC3EncodeContext *s)
{
- ff_mdct_end(&mdct->fft);
- av_freep(&mdct->window);
+ ff_mdct_end(&s->mdct);
+ av_freep(&s->mdct_window);
}
* Initialize MDCT tables.
* @param nbits log2(MDCT size)
*/
-av_cold int ff_ac3_float_mdct_init(AVCodecContext *avctx, AC3MDCTContext *mdct,
- int nbits)
+av_cold int ff_ac3_float_mdct_init(AC3EncodeContext *s)
{
float *window;
int i, n, n2;
- n = 1 << nbits;
+ n = 1 << 9;
n2 = n >> 1;
window = av_malloc(n * sizeof(*window));
if (!window) {
- av_log(avctx, AV_LOG_ERROR, "Cannot allocate memory.\n");
+ av_log(s->avctx, AV_LOG_ERROR, "Cannot allocate memory.\n");
return AVERROR(ENOMEM);
}
ff_kbd_window_init(window, 5.0, n2);
for (i = 0; i < n2; i++)
window[n-1-i] = window[i];
- mdct->window = window;
+ s->mdct_window = window;
- return ff_mdct_init(&mdct->fft, nbits, 0, -2.0 / n);
+ return ff_mdct_init(&s->mdct, 9, 0, -2.0 / n);
}