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authorJonathan Campbell <jonathan@castus.tv>2016-09-03 03:34:01 -0700
committerMichael Niedermayer <michael@niedermayer.cc>2017-01-22 02:29:16 +0100
commitd5d474aea53822642f0465825f8a94cb2327e1e6 (patch)
treedc60310bade6ffa810181eb0f0ec92dc41241cdf /libavcodec/ac3dec.h
parent76c5a69e26afbfdfc5b6f538594ea12efa31fc9a (diff)
downloadffmpeg-d5d474aea53822642f0465825f8a94cb2327e1e6.tar.gz
avcodec/ac3dec: add consistent noise generation option.
use av_lfg_init_from_data() to seed AC-3 dithering from the AC-3 frame data to make it consistent given the same AC-3 frame, if option is set. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/ac3dec.h')
-rw-r--r--libavcodec/ac3dec.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/ac3dec.h b/libavcodec/ac3dec.h
index 6cd67c0f21..495e9a69a1 100644
--- a/libavcodec/ac3dec.h
+++ b/libavcodec/ac3dec.h
@@ -177,6 +177,10 @@ typedef struct AC3DecodeContext {
int end_freq[AC3_MAX_CHANNELS]; ///< end frequency bin (endmant)
///@}
+///@name Consistent noise generation
+ int consistent_noise_generation; ///< seed noise generation with AC-3 frame on decode
+///@}
+
///@name Rematrixing
int num_rematrixing_bands; ///< number of rematrixing bands (nrematbnd)
int rematrixing_flags[4]; ///< rematrixing flags (rematflg)