int32_t *quant_cof_buffer; ///< contains all quantized parcor coefficients
int32_t **lpc_cof; ///< coefficients of the direct form prediction filter for a channel
int32_t *lpc_cof_buffer; ///< contains all coefficients of the direct form prediction filter
+ int32_t *lpc_cof_reversed_buffer; ///< temporary buffer to set up a reversed versio of lpc_cof_buffer
ALSChannelData **chan_data; ///< channel data for multi-channel correlation
ALSChannelData *chan_data_buffer; ///< contains channel data for all channels
int *reverted_channels; ///< stores a flag for each reverted channel
int32_t *lpc_cof = bd->lpc_cof;
int32_t *raw_samples = bd->raw_samples;
int32_t *raw_samples_end = bd->raw_samples + bd->block_length;
- int32_t lpc_cof_reversed[opt_order];
+ int32_t *lpc_cof_reversed = ctx->lpc_cof_reversed_buffer;
// reverse long-term prediction
if (*bd->use_ltp) {
av_freep(&ctx->lpc_cof);
av_freep(&ctx->quant_cof_buffer);
av_freep(&ctx->lpc_cof_buffer);
+ av_freep(&ctx->lpc_cof_reversed_buffer);
av_freep(&ctx->prev_raw_samples);
av_freep(&ctx->raw_samples);
av_freep(&ctx->raw_buffer);
num_buffers * sconf->max_order);
ctx->lpc_cof_buffer = av_malloc(sizeof(*ctx->lpc_cof_buffer) *
num_buffers * sconf->max_order);
+ ctx->lpc_cof_reversed_buffer = av_malloc(sizeof(*ctx->lpc_cof_buffer) *
+ sconf->max_order);
if (!ctx->quant_cof || !ctx->lpc_cof ||
- !ctx->quant_cof_buffer || !ctx->lpc_cof_buffer) {
+ !ctx->quant_cof_buffer || !ctx->lpc_cof_buffer ||
+ !ctx->lpc_cof_reversed_buffer) {
av_log(avctx, AV_LOG_ERROR, "Allocating buffer memory failed.\n");
return AVERROR(ENOMEM);
}