fix decoding of DolbyNet AC3

Originally committed as revision 10493 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago · 396a6ee50e
parent 1a3a0a79b6
commit 396a6ee50e
1 changed files with 2 additions and 2 deletions
--- a/libavcodec/ac3dec.c
+++ b/libavcodec/ac3dec.c
@ -947,8 +947,8 @@ static int ac3_parse_audio_block(AC3DecodeContext *ctx, int blk)

    /* bit allocation information */
    if (get_bits1(gb)) {
-        ctx->bit_alloc_params.sdecay = ff_sdecaytab[get_bits(gb, 2)];
-        ctx->bit_alloc_params.fdecay = ff_fdecaytab[get_bits(gb, 2)];
+        ctx->bit_alloc_params.sdecay = ff_sdecaytab[get_bits(gb, 2)] >> ctx->bit_alloc_params.halfratecod;
+        ctx->bit_alloc_params.fdecay = ff_fdecaytab[get_bits(gb, 2)] >> ctx->bit_alloc_params.halfratecod;
        ctx->bit_alloc_params.sgain  = ff_sgaintab[get_bits(gb, 2)];
        ctx->bit_alloc_params.dbknee = ff_dbkneetab[get_bits(gb, 2)];
        ctx->bit_alloc_params.floor  = ff_floortab[get_bits(gb, 3)];