mirror of
https://git.ffmpeg.org/ffmpeg.git
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eee5fa0808
This commit adds a decoder for the frequency-domain part of USAC. What works: - Mono - Stereo (no prediction) - Stereo (mid/side coding) - Stereo (complex prediction) What's left: - SBR - Speech coding Known issues: - Desync with certain sequences - Preroll crossover missing (shouldn't matter, bitrate adaptation only)
38 lines
1.4 KiB
C
38 lines
1.4 KiB
C
/*
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* Copyright (c) 2024 Lynne <dev@lynne.ee>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_AAC_AACDEC_USAC_H
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#define AVCODEC_AAC_AACDEC_USAC_H
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#include "aacdec.h"
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#include "libavcodec/get_bits.h"
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int ff_aac_usac_config_decode(AACDecContext *ac, AVCodecContext *avctx,
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GetBitContext *gb, OutputConfiguration *oc,
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int channel_config);
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int ff_aac_usac_reset_state(AACDecContext *ac, OutputConfiguration *oc);
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int ff_aac_usac_decode_frame(AVCodecContext *avctx, AACDecContext *ac,
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GetBitContext *gb, int *got_frame_ptr);
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#endif /* AVCODEC_AAC_AACDEC_USAC_H */
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