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- /*
- * Copyright (C) 2016 foo86
- *
- * This file is part of FFmpeg.
- *
- * 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.
- *
- * 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- #ifndef AVCODEC_DCA_EXSS_H
- #define AVCODEC_DCA_EXSS_H
- #include "libavutil/common.h"
- #include "avcodec.h"
- #include "get_bits.h"
- typedef struct DCAExssAsset {
- int asset_offset; ///< Offset to asset data from start of substream
- int asset_size; ///< Size of encoded asset data
- int asset_index; ///< Audio asset identifier
- int pcm_bit_res; ///< PCM bit resolution
- int max_sample_rate; ///< Maximum sample rate
- int nchannels_total; ///< Total number of channels
- int one_to_one_map_ch_to_spkr; ///< One to one channel to speaker mapping flag
- int embedded_stereo; ///< Embedded stereo flag
- int embedded_6ch; ///< Embedded 6 channels flag
- int spkr_mask_enabled; ///< Speaker mask enabled flag
- int spkr_mask; ///< Loudspeaker activity mask
- int representation_type; ///< Representation type
- int coding_mode; ///< Coding mode for the asset
- int extension_mask; ///< Coding components used in asset
- int core_offset; ///< Offset to core component from start of substream
- int core_size; ///< Size of core component in extension substream
- int xbr_offset; ///< Offset to XBR extension from start of substream
- int xbr_size; ///< Size of XBR extension in extension substream
- int xxch_offset; ///< Offset to XXCH extension from start of substream
- int xxch_size; ///< Size of XXCH extension in extension substream
- int x96_offset; ///< Offset to X96 extension from start of substream
- int x96_size; ///< Size of X96 extension in extension substream
- int lbr_offset; ///< Offset to LBR component from start of substream
- int lbr_size; ///< Size of LBR component in extension substream
- int xll_offset; ///< Offset to XLL data from start of substream
- int xll_size; ///< Size of XLL data in extension substream
- int xll_sync_present; ///< XLL sync word present flag
- int xll_delay_nframes; ///< Initial XLL decoding delay in frames
- int xll_sync_offset; ///< Number of bytes offset to XLL sync
- int hd_stream_id; ///< DTS-HD stream ID
- } DCAExssAsset;
- typedef struct DCAExssParser {
- AVCodecContext *avctx;
- GetBitContext gb;
- int exss_index; ///< Extension substream index
- int exss_size_nbits; ///< Number of bits for extension substream size
- int exss_size; ///< Number of bytes of extension substream
- int static_fields_present; ///< Per stream static fields presence flag
- int npresents; ///< Number of defined audio presentations
- int nassets; ///< Number of audio assets in extension substream
- int mix_metadata_enabled; ///< Mixing metadata enable flag
- int nmixoutconfigs; ///< Number of mixing configurations
- int nmixoutchs[4]; ///< Speaker layout mask for mixer output channels
- DCAExssAsset assets[1]; ///< Audio asset descriptors
- } DCAExssParser;
- int ff_dca_exss_parse(DCAExssParser *s, const uint8_t *data, int size);
- #endif
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