* Get the transform coefficients for a particular channel
* reference: Section 7.3 Quantization and Decoding of Mantissas
*/
-static int get_transform_coeffs_ch(AC3DecodeContext *s, int ch_index, mant_groups *m)
+static void get_transform_coeffs_ch(AC3DecodeContext *s, int ch_index, mant_groups *m)
{
GetBitContext *gbc = &s->gbc;
int i, gcode, tbap, start, end;
}
coeffs[i] >>= exps[i];
}
-
- return 0;
}
/**
/**
* Get the transform coefficients.
*/
-static int get_transform_coeffs(AC3DecodeContext *s)
+static void get_transform_coeffs(AC3DecodeContext *s)
{
int ch, end;
int got_cplchan = 0;
for (ch = 1; ch <= s->channels; ch++) {
/* transform coefficients for full-bandwidth channel */
- if (get_transform_coeffs_ch(s, ch, &m))
- return -1;
+ get_transform_coeffs_ch(s, ch, &m);
/* tranform coefficients for coupling channel come right after the
coefficients for the first coupled channel*/
if (s->channel_in_cpl[ch]) {
if (!got_cplchan) {
- if (get_transform_coeffs_ch(s, CPL_CH, &m)) {
- av_log(s->avctx, AV_LOG_ERROR, "error in decoupling channels\n");
- return -1;
- }
+ get_transform_coeffs_ch(s, CPL_CH, &m);
uncouple_channels(s);
got_cplchan = 1;
}
/* if any channel doesn't use dithering, zero appropriate coefficients */
if(!s->dither_all)
remove_dithering(s);
-
- return 0;
}
/**
/* unpack the transform coefficients
this also uncouples channels if coupling is in use. */
- if (get_transform_coeffs(s)) {
- av_log(s->avctx, AV_LOG_ERROR, "Error in routine get_transform_coeffs\n");
- return -1;
- }
+ get_transform_coeffs(s);
/* recover coefficients if rematrixing is in use */
if(s->channel_mode == AC3_CHMODE_STEREO)