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update libavcodec/wmavoice.c.

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fix bug

Signed-off-by: ziyugao <gaoziyu0614@outlook.com>
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ziyugao 2024-09-23 08:06:48 +00:00 committed by Gitee
parent 5ace4c7119
commit 5f5423a066
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1 changed files with 5 additions and 0 deletions
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libavcodec/wmavoice.c
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@ -1493,6 +1493,8 @@ static int synth_frame(AVCodecContext *ctx, GetBitContext *gb, int frame_idx,
/* Parse frame type ("frame header"), see frame_descs */
int bd_idx = s->vbm_tree[get_vlc2(gb, frame_type_vlc.table, 6, 3)], block_nsamples;
pitch[0] = INT_MAX;
if (bd_idx < 0) {
av_log(ctx, AV_LOG_ERROR,
"Invalid frame type VLC code, skipping\n");
@ -1610,6 +1612,9 @@ static int synth_frame(AVCodecContext *ctx, GetBitContext *gb, int frame_idx,
double i_lsps[MAX_LSPS];
float lpcs[MAX_LSPS];
if(frame_descs[bd_idx].fcb_type >= FCB_TYPE_AW_PULSES && pitch[0] == INT_MAX)
return AVERROR_INVALIDDATA;
for (n = 0; n < s->lsps; n++) // LSF -> LSP
i_lsps[n] = cos(0.5 * (prev_lsps[n] + lsps[n]));
ff_acelp_lspd2lpc(i_lsps, lpcs, s->lsps >> 1);