#define WMAPRO_BLOCK_MIN_BITS 6 ///< log2 of min block size
#define WMAPRO_BLOCK_MAX_BITS 13 ///< log2 of max block size
+#define WMAPRO_BLOCK_MIN_SIZE (1 << WMAPRO_BLOCK_MIN_BITS) ///< minimum block size
#define WMAPRO_BLOCK_MAX_SIZE (1 << WMAPRO_BLOCK_MAX_BITS) ///< maximum block size
#define WMAPRO_BLOCK_SIZES (WMAPRO_BLOCK_MAX_BITS - WMAPRO_BLOCK_MIN_BITS + 1) ///< possible block sizes
static VLC vec2_vlc; ///< 2 coefficients per symbol
static VLC vec1_vlc; ///< 1 coefficient per symbol
static VLC coef_vlc[2]; ///< coefficient run length vlc codes
-static float sin64[33]; ///< sinus table for decorrelation
+static float sin64[33]; ///< sine table for decorrelation
/**
* @brief frame specific decoder context for a single channel
return AVERROR_INVALIDDATA;
}
+ if (s->min_samples_per_subframe < WMAPRO_BLOCK_MIN_SIZE) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid minimum block size %i\n",
+ s->max_num_subframes);
+ return AVERROR_INVALIDDATA;
+ }
+
if (s->avctx->sample_rate <= 0) {
av_log(avctx, AV_LOG_ERROR, "invalid sample rate\n");
return AVERROR_INVALIDDATA;
for (x = 0; x < num_possible_block_sizes; x++) {
int v = 0;
while (s->sfb_offsets[x][v + 1] << x < offset)
- ++v;
+ if (++v >= MAX_BANDS)
+ return AVERROR_INVALIDDATA;
s->sf_offsets[i][x][b] = v;
}
}
1.0 / (1 << (WMAPRO_BLOCK_MIN_BITS + i - 1))
/ (1 << (s->bits_per_sample - 1)));
- /** init MDCT windows: simple sinus window */
+ /** init MDCT windows: simple sine window */
for (i = 0; i < WMAPRO_BLOCK_SIZES; i++) {
const int win_idx = WMAPRO_BLOCK_MAX_BITS - i;
ff_init_ff_sine_windows(win_idx);
if (get_bits1(&s->gb)) {
avpriv_request_sample(s->avctx,
"Unknown channel transform type");
+ return AVERROR_PATCHWELCOME;
}
} else {
chgroup->transform = 1;
cur_subwoofer_cutoff = s->subwoofer_cutoffs[s->table_idx];
/** configure the decoder for the current subframe */
+ offset += s->samples_per_frame >> 1;
+
for (i = 0; i < s->channels_for_cur_subframe; i++) {
int c = s->channel_indexes_for_cur_subframe[i];
- s->channel[c].coeffs = &s->channel[c].out[(s->samples_per_frame >> 1)
- + offset];
+ s->channel[c].coeffs = &s->channel[c].out[offset];
}
s->subframe_len = subframe_len;
for (i = 0; i < s->channels_for_cur_subframe; i++) {
int c = s->channel_indexes_for_cur_subframe[i];
int num_vec_coeffs = get_bits(&s->gb, num_bits) << 2;
- if (num_vec_coeffs > WMAPRO_BLOCK_MAX_SIZE) {
+ if (num_vec_coeffs + offset > FF_ARRAY_ELEMS(s->channel[c].out)) {
av_log(s->avctx, AV_LOG_ERROR, "num_vec_coeffs %d is too large\n", num_vec_coeffs);
return AVERROR_INVALIDDATA;
}