diff options
author | James Almer <jamrial@gmail.com> | 2019-05-04 21:15:50 +0300 |
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committer | James Almer <jamrial@gmail.com> | 2019-05-07 23:30:19 +0300 |
commit | 109b0d7c0f29462b6937df47e64a06f65b69bfbf (patch) | |
tree | 305e24339cf2e73c7410266cc572d1ba896729ad /libavcodec/mlp_parse.h | |
parent | a0328f05dc02e61e8173f981cd578d0a36d7c0fc (diff) |
avcodec/mlp_parser: split off shared code to its own file
Signed-off-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavcodec/mlp_parse.h')
-rw-r--r-- | libavcodec/mlp_parse.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/libavcodec/mlp_parse.h b/libavcodec/mlp_parse.h new file mode 100644 index 0000000000..c6025d1a18 --- /dev/null +++ b/libavcodec/mlp_parse.h @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2007 Ian Caulfield + * + * 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_MLP_PARSE_H +#define AVCODEC_MLP_PARSE_H + +#include "get_bits.h" + +typedef struct MLPHeaderInfo +{ + int stream_type; ///< 0xBB for MLP, 0xBA for TrueHD + int header_size; ///< Size of the major sync header, in bytes + + int group1_bits; ///< The bit depth of the first substream + int group2_bits; ///< Bit depth of the second substream (MLP only) + + int group1_samplerate; ///< Sample rate of first substream + int group2_samplerate; ///< Sample rate of second substream (MLP only) + + int channel_arrangement; + + int channel_modifier_thd_stream0; ///< Channel modifier for substream 0 of TrueHD streams ("2-channel presentation") + int channel_modifier_thd_stream1; ///< Channel modifier for substream 1 of TrueHD streams ("6-channel presentation") + int channel_modifier_thd_stream2; ///< Channel modifier for substream 2 of TrueHD streams ("8-channel presentation") + + int channels_mlp; ///< Channel count for MLP streams + int channels_thd_stream1; ///< Channel count for substream 1 of TrueHD streams ("6-channel presentation") + int channels_thd_stream2; ///< Channel count for substream 2 of TrueHD streams ("8-channel presentation") + uint64_t channel_layout_mlp; ///< Channel layout for MLP streams + uint64_t channel_layout_thd_stream1; ///< Channel layout for substream 1 of TrueHD streams ("6-channel presentation") + uint64_t channel_layout_thd_stream2; ///< Channel layout for substream 2 of TrueHD streams ("8-channel presentation") + + int access_unit_size; ///< Number of samples per coded frame + int access_unit_size_pow2; ///< Next power of two above number of samples per frame + + int is_vbr; ///< Stream is VBR instead of CBR + int peak_bitrate; ///< Peak bitrate for VBR, actual bitrate (==peak) for CBR + + int num_substreams; ///< Number of substreams within stream +} MLPHeaderInfo; + + +int ff_mlp_read_major_sync(void *log, MLPHeaderInfo *mh, GetBitContext *gb); + +#endif /* AVCODEC_MLP_PARSE_H */ |