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| author | Jean-Francois Thibert <jfthibert@google.com> | 2014-08-26 19:16:06 -0400 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-08-27 14:31:39 +0200 |
| commit | 12df9b9a151026c4b382df8852fad38165b49f95 (patch) | |
| tree | 5b2f03eae9dc3e3eb44cdb0b1cd930a5d0e03012 /libavcodec/ac3dec.h | |
| parent | 7a67ab5cba8ed5509be5d058fe9e5612ef39d3b0 (diff) | |
| download | ffmpeg-12df9b9a151026c4b382df8852fad38165b49f95.tar.gz | |
Improved AC3 decoder level support (heavy drc, dialnorm)
Added support for AC3 heavy dynamic range compression used
to restrict the output range and added a setting to specify
the output target level and use the dialog normalization
field to apply it in the digital domain.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/ac3dec.h')
| -rw-r--r-- | libavcodec/ac3dec.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libavcodec/ac3dec.h b/libavcodec/ac3dec.h index 3ac44ee17e..a213bc0870 100644 --- a/libavcodec/ac3dec.h +++ b/libavcodec/ac3dec.h @@ -84,6 +84,9 @@ typedef struct AC3DecodeContext { int bitstream_mode; ///< bitstream mode (bsmod) int channel_mode; ///< channel mode (acmod) int lfe_on; ///< lfe channel in use + int dialog_normalization[2]; ///< dialog level in dBFS (dialnorm) + int compression_exists[2]; ///< compression field is valid for frame (compre) + int compression_gain[2]; ///< gain to apply for heavy compression (compr) int channel_map; ///< custom channel map int preferred_downmix; ///< Preferred 2-channel downmix mode (dmixmod) int center_mix_level; ///< Center mix level index @@ -103,6 +106,8 @@ typedef struct AC3DecodeContext { float ltrt_surround_mix_level; float loro_center_mix_level; float loro_surround_mix_level; + int target_level; ///< target level in dBFS + float level_gain[2]; ///@name Frame syntax parameters int snr_offset_strategy; ///< SNR offset strategy (snroffststr) @@ -161,6 +166,8 @@ typedef struct AC3DecodeContext { ///@name Dynamic range INTFLOAT dynamic_range[2]; ///< dynamic range INTFLOAT drc_scale; ///< percentage of dynamic range compression to be applied + int heavy_compression; ///< apply heavy compression + INTFLOAT heavy_dynamic_range[2]; ///< heavy dynamic range compression ///@} ///@name Bandwidth |