aacenc: allocate a larger buffer for the TNS LPC context

[ffmpeg] / libavcodec / aacenc.c

diff --git a/libavcodec/aacenc.c b/libavcodec/aacenc.c
index a32f0d415ed3d3647daa72fa848321e9d2f3af05..232eeda04fafd42101635d932f99d242a511f5a7 100644 (file)
--- a/libavcodec/aacenc.c
+++ b/libavcodec/aacenc.c
@@ -525,6 +525,9 @@ static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
             ics->swb_offset         = wi[ch].window_type[0] == EIGHT_SHORT_SEQUENCE ?
                                         ff_swb_offset_128 [s->samplerate_index]:
                                         ff_swb_offset_1024[s->samplerate_index];
+            ics->tns_max_bands      = wi[ch].window_type[0] == EIGHT_SHORT_SEQUENCE ?
+                                        ff_tns_max_bands_128 [s->samplerate_index]:
+                                        ff_tns_max_bands_1024[s->samplerate_index];
             clip_avoidance_factor = 0.0f;
             for (w = 0; w < ics->num_windows; w++)
                 ics->group_len[w] = wi[ch].grouping[w];
@@ -822,7 +825,7 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
         goto fail;
     s->psypp = ff_psy_preprocess_init(avctx);
     s->coder = &ff_aac_coders[s->options.aac_coder];
-    ff_lpc_init(&s->lpc, avctx->frame_size, MAX_LPC_ORDER, FF_LPC_TYPE_LEVINSON);
+    ff_lpc_init(&s->lpc, 2*avctx->frame_size, TNS_MAX_ORDER, FF_LPC_TYPE_LEVINSON);
 
     if (HAVE_MIPSDSPR1)
         ff_aac_coder_init_mips(s);