diff options
Diffstat (limited to 'libavcodec/ac3.h')
| -rw-r--r-- | libavcodec/ac3.h | 48 |
1 files changed, 44 insertions, 4 deletions
diff --git a/libavcodec/ac3.h b/libavcodec/ac3.h index 4ed8c2523b..fcb401c238 100644 --- a/libavcodec/ac3.h +++ b/libavcodec/ac3.h @@ -2,20 +2,20 @@ * Common code between the AC-3 encoder and decoder * Copyright (c) 2000, 2001, 2002 Fabrice Bellard * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -38,6 +38,8 @@ #define AC3_CRITICAL_BANDS 50 #define AC3_MAX_CPL_BANDS 18 +#include "libavutil/opt.h" +#include "avcodec.h" #include "ac3tab.h" /* exponent encoding strategy */ @@ -128,8 +130,46 @@ typedef enum { EAC3_FRAME_TYPE_RESERVED } EAC3FrameType; +/** + * Encoding Options used by AVOption. + */ +typedef struct AC3EncOptions { + /* AC-3 metadata options*/ + int dialogue_level; + int bitstream_mode; + float center_mix_level; + float surround_mix_level; + int dolby_surround_mode; + int audio_production_info; + int mixing_level; + int room_type; + int copyright; + int original; + int extended_bsi_1; + int preferred_stereo_downmix; + float ltrt_center_mix_level; + float ltrt_surround_mix_level; + float loro_center_mix_level; + float loro_surround_mix_level; + int extended_bsi_2; + int dolby_surround_ex_mode; + int dolby_headphone_mode; + int ad_converter_type; + + /* other encoding options */ + int allow_per_frame_metadata; + int stereo_rematrixing; +} AC3EncOptions; + + void ff_ac3_common_init(void); +extern const int64_t ff_ac3_channel_layouts[]; +extern const AVOption ff_ac3_options[]; + +extern AVCodec ff_ac3_float_encoder; +extern AVCodec ff_ac3_fixed_encoder; + /** * Calculate the log power-spectral density of the input signal. * This gives a rough estimate of signal power in the frequency domain by using |