From b48397e7b84864f2d4c70361a4c4bed93e826753 Mon Sep 17 00:00:00 2001
From: Lynne <dev@lynne.ee>
Date: Sun, 2 Aug 2020 22:45:00 +0200
Subject: [PATCH] mpegaudiodec_template: disable CRC checking for layers 1 and
2
Layers 1 and 2 use lengths in bits which are not a multiple of 8,
and our CRC works on a per-byte basis.
---
libavcodec/mpegaudiodec_template.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/mpegaudiodec_template.c b/libavcodec/mpegaudiodec_template.c
index 3d7e3ba4f2..f03d7bc275 100644
--- a/libavcodec/mpegaudiodec_template.c
+++ b/libavcodec/mpegaudiodec_template.c
@@ -1566,7 +1566,7 @@ static int mp_decode_frame(MPADecodeContext *s, OUT_INT **samples,
init_get_bits(&s->gb, buf + HEADER_SIZE, (buf_size - HEADER_SIZE) * 8);
- if (s->error_protection) {
+ if (s->error_protection && s->layer == 3) {
uint16_t crc = get_bits(&s->gb, 16);
if (s->err_recognition & AV_EF_CRCCHECK) {
const int sec_len = s->lsf ? ((s->nb_channels == 1) ? 9 : 17) :