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/* |
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* TAK decoder |
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* Copyright (c) 2012 Paul B Mahol |
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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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/** |
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* @file |
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* TAK (Tom's lossless Audio Kompressor) decoder |
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* @author Paul B Mahol |
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*/ |
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#include "libavutil/internal.h" |
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#include "libavutil/samplefmt.h" |
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#define BITSTREAM_READER_LE |
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#include "audiodsp.h" |
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#include "thread.h" |
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#include "avcodec.h" |
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#include "internal.h" |
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#include "unary.h" |
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#include "tak.h" |
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#include "takdsp.h" |
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#define MAX_SUBFRAMES 8 ///< max number of subframes per channel |
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#define MAX_PREDICTORS 256 |
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typedef struct MCDParam { |
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int8_t present; ///< decorrelation parameter availability for this channel |
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int8_t index; ///< index into array of decorrelation types |
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int8_t chan1; |
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int8_t chan2; |
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} MCDParam; |
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50 |
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typedef struct TAKDecContext { |
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AVCodecContext *avctx; ///< parent AVCodecContext |
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AudioDSPContext adsp; |
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TAKDSPContext tdsp; |
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TAKStreamInfo ti; |
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GetBitContext gb; ///< bitstream reader initialized to start at the current frame |
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int uval; |
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int nb_samples; ///< number of samples in the current frame |
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uint8_t *decode_buffer; |
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unsigned int decode_buffer_size; |
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int32_t *decoded[TAK_MAX_CHANNELS]; ///< decoded samples for each channel |
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int8_t lpc_mode[TAK_MAX_CHANNELS]; |
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int8_t sample_shift[TAK_MAX_CHANNELS]; ///< shift applied to every sample in the channel |
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int16_t predictors[MAX_PREDICTORS]; |
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int nb_subframes; ///< number of subframes in the current frame |
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int16_t subframe_len[MAX_SUBFRAMES]; ///< subframe length in samples |
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int subframe_scale; |
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int8_t dmode; ///< channel decorrelation type in the current frame |
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MCDParam mcdparams[TAK_MAX_CHANNELS]; ///< multichannel decorrelation parameters |
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int8_t coding_mode[128]; |
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DECLARE_ALIGNED(16, int16_t, filter)[MAX_PREDICTORS]; |
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DECLARE_ALIGNED(16, int16_t, residues)[544]; |
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} TAKDecContext; |
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static const int8_t mc_dmodes[] = { 1, 3, 4, 6, }; |
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static const uint16_t predictor_sizes[] = { |
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4, 8, 12, 16, 24, 32, 48, 64, 80, 96, 128, 160, 192, 224, 256, 0, |
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}; |
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static const struct CParam { |
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int init; |
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int escape; |
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int scale; |
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int aescape; |
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int bias; |
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} xcodes[50] = { |
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{ 0x01, 0x0000001, 0x0000001, 0x0000003, 0x0000008 }, |
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{ 0x02, 0x0000003, 0x0000001, 0x0000007, 0x0000006 }, |
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{ 0x03, 0x0000005, 0x0000002, 0x000000E, 0x000000D }, |
95 |
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{ 0x03, 0x0000003, 0x0000003, 0x000000D, 0x0000018 }, |
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{ 0x04, 0x000000B, 0x0000004, 0x000001C, 0x0000019 }, |
97 |
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{ 0x04, 0x0000006, 0x0000006, 0x000001A, 0x0000030 }, |
98 |
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{ 0x05, 0x0000016, 0x0000008, 0x0000038, 0x0000032 }, |
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{ 0x05, 0x000000C, 0x000000C, 0x0000034, 0x0000060 }, |
100 |
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{ 0x06, 0x000002C, 0x0000010, 0x0000070, 0x0000064 }, |
101 |
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{ 0x06, 0x0000018, 0x0000018, 0x0000068, 0x00000C0 }, |
102 |
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{ 0x07, 0x0000058, 0x0000020, 0x00000E0, 0x00000C8 }, |
103 |
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{ 0x07, 0x0000030, 0x0000030, 0x00000D0, 0x0000180 }, |
104 |
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{ 0x08, 0x00000B0, 0x0000040, 0x00001C0, 0x0000190 }, |
105 |
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{ 0x08, 0x0000060, 0x0000060, 0x00001A0, 0x0000300 }, |
106 |
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{ 0x09, 0x0000160, 0x0000080, 0x0000380, 0x0000320 }, |
107 |
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{ 0x09, 0x00000C0, 0x00000C0, 0x0000340, 0x0000600 }, |
108 |
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{ 0x0A, 0x00002C0, 0x0000100, 0x0000700, 0x0000640 }, |
109 |
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{ 0x0A, 0x0000180, 0x0000180, 0x0000680, 0x0000C00 }, |
110 |
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{ 0x0B, 0x0000580, 0x0000200, 0x0000E00, 0x0000C80 }, |
111 |
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{ 0x0B, 0x0000300, 0x0000300, 0x0000D00, 0x0001800 }, |
112 |
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{ 0x0C, 0x0000B00, 0x0000400, 0x0001C00, 0x0001900 }, |
113 |
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{ 0x0C, 0x0000600, 0x0000600, 0x0001A00, 0x0003000 }, |
114 |
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{ 0x0D, 0x0001600, 0x0000800, 0x0003800, 0x0003200 }, |
115 |
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{ 0x0D, 0x0000C00, 0x0000C00, 0x0003400, 0x0006000 }, |
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{ 0x0E, 0x0002C00, 0x0001000, 0x0007000, 0x0006400 }, |
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{ 0x0E, 0x0001800, 0x0001800, 0x0006800, 0x000C000 }, |
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{ 0x0F, 0x0005800, 0x0002000, 0x000E000, 0x000C800 }, |
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{ 0x0F, 0x0003000, 0x0003000, 0x000D000, 0x0018000 }, |
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{ 0x10, 0x000B000, 0x0004000, 0x001C000, 0x0019000 }, |
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{ 0x10, 0x0006000, 0x0006000, 0x001A000, 0x0030000 }, |
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{ 0x11, 0x0016000, 0x0008000, 0x0038000, 0x0032000 }, |
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{ 0x11, 0x000C000, 0x000C000, 0x0034000, 0x0060000 }, |
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{ 0x12, 0x002C000, 0x0010000, 0x0070000, 0x0064000 }, |
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{ 0x12, 0x0018000, 0x0018000, 0x0068000, 0x00C0000 }, |
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{ 0x13, 0x0058000, 0x0020000, 0x00E0000, 0x00C8000 }, |
127 |
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{ 0x13, 0x0030000, 0x0030000, 0x00D0000, 0x0180000 }, |
128 |
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{ 0x14, 0x00B0000, 0x0040000, 0x01C0000, 0x0190000 }, |
129 |
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{ 0x14, 0x0060000, 0x0060000, 0x01A0000, 0x0300000 }, |
130 |
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{ 0x15, 0x0160000, 0x0080000, 0x0380000, 0x0320000 }, |
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{ 0x15, 0x00C0000, 0x00C0000, 0x0340000, 0x0600000 }, |
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{ 0x16, 0x02C0000, 0x0100000, 0x0700000, 0x0640000 }, |
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{ 0x16, 0x0180000, 0x0180000, 0x0680000, 0x0C00000 }, |
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{ 0x17, 0x0580000, 0x0200000, 0x0E00000, 0x0C80000 }, |
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{ 0x17, 0x0300000, 0x0300000, 0x0D00000, 0x1800000 }, |
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{ 0x18, 0x0B00000, 0x0400000, 0x1C00000, 0x1900000 }, |
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{ 0x18, 0x0600000, 0x0600000, 0x1A00000, 0x3000000 }, |
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{ 0x19, 0x1600000, 0x0800000, 0x3800000, 0x3200000 }, |
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{ 0x19, 0x0C00000, 0x0C00000, 0x3400000, 0x6000000 }, |
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{ 0x1A, 0x2C00000, 0x1000000, 0x7000000, 0x6400000 }, |
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{ 0x1A, 0x1800000, 0x1800000, 0x6800000, 0xC000000 }, |
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}; |
143 |
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144 |
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static int set_bps_params(AVCodecContext *avctx) |
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{ |
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✗✓✗✗
|
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switch (avctx->bits_per_raw_sample) { |
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case 8: |
148 |
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avctx->sample_fmt = AV_SAMPLE_FMT_U8P; |
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break; |
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case 16: |
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avctx->sample_fmt = AV_SAMPLE_FMT_S16P; |
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break; |
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case 24: |
154 |
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avctx->sample_fmt = AV_SAMPLE_FMT_S32P; |
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break; |
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default: |
157 |
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av_log(avctx, AV_LOG_ERROR, "invalid/unsupported bits per sample: %d\n", |
158 |
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avctx->bits_per_raw_sample); |
159 |
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return AVERROR_INVALIDDATA; |
160 |
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} |
161 |
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162 |
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return 0; |
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} |
164 |
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165 |
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static void set_sample_rate_params(AVCodecContext *avctx) |
166 |
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{ |
167 |
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TAKDecContext *s = avctx->priv_data; |
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int shift; |
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✗✓ |
2 |
if (avctx->sample_rate < 11025) { |
171 |
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shift = 3; |
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✗✓ |
2 |
} else if (avctx->sample_rate < 22050) { |
173 |
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shift = 2; |
174 |
✗✓ |
2 |
} else if (avctx->sample_rate < 44100) { |
175 |
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shift = 1; |
176 |
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} else { |
177 |
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shift = 0; |
178 |
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} |
179 |
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s->uval = FFALIGN(avctx->sample_rate + 511LL >> 9, 4) << shift; |
180 |
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s->subframe_scale = FFALIGN(avctx->sample_rate + 511LL >> 9, 4) << 1; |
181 |
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} |
182 |
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183 |
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static av_cold int tak_decode_init(AVCodecContext *avctx) |
184 |
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{ |
185 |
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TAKDecContext *s = avctx->priv_data; |
186 |
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187 |
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ff_audiodsp_init(&s->adsp); |
188 |
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ff_takdsp_init(&s->tdsp); |
189 |
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190 |
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2 |
s->avctx = avctx; |
191 |
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2 |
avctx->bits_per_raw_sample = avctx->bits_per_coded_sample; |
192 |
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193 |
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2 |
set_sample_rate_params(avctx); |
194 |
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195 |
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2 |
return set_bps_params(avctx); |
196 |
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} |
197 |
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198 |
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122 |
static void decode_lpc(int32_t *coeffs, int mode, int length) |
199 |
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{ |
200 |
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int i; |
201 |
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202 |
✗✓ |
122 |
if (length < 2) |
203 |
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return; |
204 |
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205 |
✓✓ |
122 |
if (mode == 1) { |
206 |
|
115 |
unsigned a1 = *coeffs++; |
207 |
✓✓ |
420150 |
for (i = 0; i < length - 1 >> 1; i++) { |
208 |
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420035 |
*coeffs += a1; |
209 |
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420035 |
coeffs[1] += (unsigned)*coeffs; |
210 |
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420035 |
a1 = coeffs[1]; |
211 |
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420035 |
coeffs += 2; |
212 |
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} |
213 |
✓✓ |
115 |
if (length - 1 & 1) |
214 |
|
39 |
*coeffs += a1; |
215 |
✓✗ |
7 |
} else if (mode == 2) { |
216 |
|
7 |
unsigned a1 = coeffs[1]; |
217 |
|
7 |
unsigned a2 = a1 + *coeffs; |
218 |
|
7 |
coeffs[1] = a2; |
219 |
✓✗ |
7 |
if (length > 2) { |
220 |
|
7 |
coeffs += 2; |
221 |
✓✓ |
258 |
for (i = 0; i < length - 2 >> 1; i++) { |
222 |
|
251 |
unsigned a3 = *coeffs + a1; |
223 |
|
251 |
unsigned a4 = a3 + a2; |
224 |
|
251 |
*coeffs = a4; |
225 |
|
251 |
a1 = coeffs[1] + a3; |
226 |
|
251 |
a2 = a1 + a4; |
227 |
|
251 |
coeffs[1] = a2; |
228 |
|
251 |
coeffs += 2; |
229 |
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} |
230 |
✗✓ |
7 |
if (length & 1) |
231 |
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*coeffs += a1 + a2; |
232 |
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} |
233 |
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} else if (mode == 3) { |
234 |
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unsigned a1 = coeffs[1]; |
235 |
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unsigned a2 = a1 + *coeffs; |
236 |
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coeffs[1] = a2; |
237 |
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if (length > 2) { |
238 |
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unsigned a3 = coeffs[2]; |
239 |
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unsigned a4 = a3 + a1; |
240 |
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unsigned a5 = a4 + a2; |
241 |
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coeffs[2] = a5; |
242 |
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coeffs += 3; |
243 |
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for (i = 0; i < length - 3; i++) { |
244 |
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a3 += *coeffs; |
245 |
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a4 += a3; |
246 |
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a5 += a4; |
247 |
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*coeffs = a5; |
248 |
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coeffs++; |
249 |
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} |
250 |
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} |
251 |
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} |
252 |
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} |
253 |
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254 |
|
3930 |
static int decode_segment(TAKDecContext *s, int8_t mode, int32_t *decoded, int len) |
255 |
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{ |
256 |
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struct CParam code; |
257 |
|
3930 |
GetBitContext *gb = &s->gb; |
258 |
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int i; |
259 |
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|
260 |
✗✓ |
3930 |
if (!mode) { |
261 |
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memset(decoded, 0, len * sizeof(*decoded)); |
262 |
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return 0; |
263 |
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} |
264 |
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|
265 |
✗✓ |
3930 |
if (mode > FF_ARRAY_ELEMS(xcodes)) |
266 |
|
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return AVERROR_INVALIDDATA; |
267 |
|
3930 |
code = xcodes[mode - 1]; |
268 |
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|
269 |
✓✓ |
841754 |
for (i = 0; i < len; i++) { |
270 |
|
837824 |
unsigned x = get_bits_long(gb, code.init); |
271 |
✓✓✓✓
|
837824 |
if (x >= code.escape && get_bits1(gb)) { |
272 |
|
182416 |
x |= 1 << code.init; |
273 |
✓✓ |
182416 |
if (x >= code.aescape) { |
274 |
|
135064 |
unsigned scale = get_unary(gb, 1, 9); |
275 |
✓✓ |
135064 |
if (scale == 9) { |
276 |
|
164 |
int scale_bits = get_bits(gb, 3); |
277 |
✓✓ |
164 |
if (scale_bits > 0) { |
278 |
✗✓ |
109 |
if (scale_bits == 7) { |
279 |
|
|
scale_bits += get_bits(gb, 5); |
280 |
|
|
if (scale_bits > 29) |
281 |
|
|
return AVERROR_INVALIDDATA; |
282 |
|
|
} |
283 |
|
109 |
scale = get_bits_long(gb, scale_bits) + 1; |
284 |
|
109 |
x += code.scale * scale; |
285 |
|
|
} |
286 |
|
164 |
x += code.bias; |
287 |
|
|
} else |
288 |
|
134900 |
x += code.scale * scale - code.escape; |
289 |
|
|
} else |
290 |
|
47352 |
x -= code.escape; |
291 |
|
|
} |
292 |
|
837824 |
decoded[i] = (x >> 1) ^ -(x & 1); |
293 |
|
|
} |
294 |
|
|
|
295 |
|
3930 |
return 0; |
296 |
|
|
} |
297 |
|
|
|
298 |
|
341 |
static int decode_residues(TAKDecContext *s, int32_t *decoded, int length) |
299 |
|
|
{ |
300 |
|
341 |
GetBitContext *gb = &s->gb; |
301 |
|
|
int i, mode, ret; |
302 |
|
|
|
303 |
✗✓ |
341 |
if (length > s->nb_samples) |
304 |
|
|
return AVERROR_INVALIDDATA; |
305 |
|
|
|
306 |
✓✓ |
341 |
if (get_bits1(gb)) { |
307 |
|
|
int wlength, rval; |
308 |
|
|
|
309 |
|
250 |
wlength = length / s->uval; |
310 |
|
|
|
311 |
|
250 |
rval = length - (wlength * s->uval); |
312 |
|
|
|
313 |
✓✓ |
250 |
if (rval < s->uval / 2) |
314 |
|
209 |
rval += s->uval; |
315 |
|
|
else |
316 |
|
41 |
wlength++; |
317 |
|
|
|
318 |
✓✗✗✓
|
250 |
if (wlength <= 1 || wlength > 128) |
319 |
|
|
return AVERROR_INVALIDDATA; |
320 |
|
|
|
321 |
|
250 |
s->coding_mode[0] = mode = get_bits(gb, 6); |
322 |
|
|
|
323 |
✓✓ |
8926 |
for (i = 1; i < wlength; i++) { |
324 |
|
8676 |
int c = get_unary(gb, 1, 6); |
325 |
|
|
|
326 |
✗✓✓✓
✓ |
8676 |
switch (c) { |
327 |
|
|
case 6: |
328 |
|
|
mode = get_bits(gb, 6); |
329 |
|
|
break; |
330 |
|
238 |
case 5: |
331 |
|
|
case 4: |
332 |
|
|
case 3: { |
333 |
|
|
/* mode += sign ? (1 - c) : (c - 1) */ |
334 |
|
238 |
int sign = get_bits1(gb); |
335 |
|
238 |
mode += (-sign ^ (c - 1)) + sign; |
336 |
|
238 |
break; |
337 |
|
|
} |
338 |
|
1607 |
case 2: |
339 |
|
1607 |
mode++; |
340 |
|
1607 |
break; |
341 |
|
1744 |
case 1: |
342 |
|
1744 |
mode--; |
343 |
|
1744 |
break; |
344 |
|
|
} |
345 |
|
8676 |
s->coding_mode[i] = mode; |
346 |
|
|
} |
347 |
|
|
|
348 |
|
250 |
i = 0; |
349 |
✓✓ |
4089 |
while (i < wlength) { |
350 |
|
3839 |
int len = 0; |
351 |
|
|
|
352 |
|
3839 |
mode = s->coding_mode[i]; |
353 |
|
|
do { |
354 |
✓✓ |
8926 |
if (i >= wlength - 1) |
355 |
|
250 |
len += rval; |
356 |
|
|
else |
357 |
|
8676 |
len += s->uval; |
358 |
|
8926 |
i++; |
359 |
|
|
|
360 |
✓✓ |
8926 |
if (i == wlength) |
361 |
|
250 |
break; |
362 |
✓✓ |
8676 |
} while (s->coding_mode[i] == mode); |
363 |
|
|
|
364 |
✗✓ |
3839 |
if ((ret = decode_segment(s, mode, decoded, len)) < 0) |
365 |
|
|
return ret; |
366 |
|
3839 |
decoded += len; |
367 |
|
|
} |
368 |
|
|
} else { |
369 |
|
91 |
mode = get_bits(gb, 6); |
370 |
✗✓ |
91 |
if ((ret = decode_segment(s, mode, decoded, length)) < 0) |
371 |
|
|
return ret; |
372 |
|
|
} |
373 |
|
|
|
374 |
|
341 |
return 0; |
375 |
|
|
} |
376 |
|
|
|
377 |
|
376 |
static int get_bits_esc4(GetBitContext *gb) |
378 |
|
|
{ |
379 |
✓✓ |
376 |
if (get_bits1(gb)) |
380 |
|
25 |
return get_bits(gb, 4) + 1; |
381 |
|
|
else |
382 |
|
351 |
return 0; |
383 |
|
|
} |
384 |
|
|
|
385 |
|
265 |
static int decode_subframe(TAKDecContext *s, int32_t *decoded, |
386 |
|
|
int subframe_size, int prev_subframe_size) |
387 |
|
|
{ |
388 |
|
265 |
GetBitContext *gb = &s->gb; |
389 |
|
265 |
int x, y, i, j, ret = 0; |
390 |
|
|
int dshift, size, filter_quant, filter_order; |
391 |
|
|
int tfilter[MAX_PREDICTORS]; |
392 |
|
|
|
393 |
✗✓ |
265 |
if (!get_bits1(gb)) |
394 |
|
|
return decode_residues(s, decoded, subframe_size); |
395 |
|
|
|
396 |
|
265 |
filter_order = predictor_sizes[get_bits(gb, 4)]; |
397 |
|
|
|
398 |
✓✓✓✗
|
265 |
if (prev_subframe_size > 0 && get_bits1(gb)) { |
399 |
✗✓ |
189 |
if (filter_order > prev_subframe_size) |
400 |
|
|
return AVERROR_INVALIDDATA; |
401 |
|
|
|
402 |
|
189 |
decoded -= filter_order; |
403 |
|
189 |
subframe_size += filter_order; |
404 |
|
|
|
405 |
✗✓ |
189 |
if (filter_order > subframe_size) |
406 |
|
|
return AVERROR_INVALIDDATA; |
407 |
|
|
} else { |
408 |
|
|
int lpc_mode; |
409 |
|
|
|
410 |
✗✓ |
76 |
if (filter_order > subframe_size) |
411 |
|
|
return AVERROR_INVALIDDATA; |
412 |
|
|
|
413 |
|
76 |
lpc_mode = get_bits(gb, 2); |
414 |
✗✓ |
76 |
if (lpc_mode > 2) |
415 |
|
|
return AVERROR_INVALIDDATA; |
416 |
|
|
|
417 |
✗✓ |
76 |
if ((ret = decode_residues(s, decoded, filter_order)) < 0) |
418 |
|
|
return ret; |
419 |
|
|
|
420 |
✓✓ |
76 |
if (lpc_mode) |
421 |
|
46 |
decode_lpc(decoded, lpc_mode, filter_order); |
422 |
|
|
} |
423 |
|
|
|
424 |
|
265 |
dshift = get_bits_esc4(gb); |
425 |
|
265 |
size = get_bits1(gb) + 6; |
426 |
|
|
|
427 |
|
265 |
filter_quant = 10; |
428 |
✗✓ |
265 |
if (get_bits1(gb)) { |
429 |
|
|
filter_quant -= get_bits(gb, 3) + 1; |
430 |
|
|
if (filter_quant < 3) |
431 |
|
|
return AVERROR_INVALIDDATA; |
432 |
|
|
} |
433 |
|
|
|
434 |
|
265 |
s->predictors[0] = get_sbits(gb, 10); |
435 |
|
265 |
s->predictors[1] = get_sbits(gb, 10); |
436 |
|
265 |
s->predictors[2] = get_sbits(gb, size) * (1 << (10 - size)); |
437 |
|
265 |
s->predictors[3] = get_sbits(gb, size) * (1 << (10 - size)); |
438 |
✓✓ |
265 |
if (filter_order > 4) { |
439 |
|
242 |
int tmp = size - get_bits1(gb); |
440 |
|
|
|
441 |
✓✓ |
9054 |
for (i = 4; i < filter_order; i++) { |
442 |
✓✓ |
8812 |
if (!(i & 3)) |
443 |
|
2203 |
x = tmp - get_bits(gb, 2); |
444 |
|
8812 |
s->predictors[i] = get_sbits(gb, x) * (1 << (10 - size)); |
445 |
|
|
} |
446 |
|
|
} |
447 |
|
|
|
448 |
|
265 |
tfilter[0] = s->predictors[0] * 64; |
449 |
✓✓ |
9872 |
for (i = 1; i < filter_order; i++) { |
450 |
|
9607 |
uint32_t *p1 = &tfilter[0]; |
451 |
|
9607 |
uint32_t *p2 = &tfilter[i - 1]; |
452 |
|
|
|
453 |
✓✓ |
215679 |
for (j = 0; j < (i + 1) / 2; j++) { |
454 |
|
206072 |
x = *p1 + ((int32_t)(s->predictors[i] * *p2 + 256) >> 9); |
455 |
|
206072 |
*p2 += (int32_t)(s->predictors[i] * *p1 + 256) >> 9; |
456 |
|
206072 |
*p1++ = x; |
457 |
|
206072 |
p2--; |
458 |
|
|
} |
459 |
|
|
|
460 |
|
9607 |
tfilter[i] = s->predictors[i] * 64; |
461 |
|
|
} |
462 |
|
|
|
463 |
|
265 |
x = 1 << (32 - (15 - filter_quant)); |
464 |
|
265 |
y = 1 << ((15 - filter_quant) - 1); |
465 |
✓✓ |
5201 |
for (i = 0, j = filter_order - 1; i < filter_order / 2; i++, j--) { |
466 |
|
4936 |
s->filter[j] = x - ((tfilter[i] + y) >> (15 - filter_quant)); |
467 |
|
4936 |
s->filter[i] = x - ((tfilter[j] + y) >> (15 - filter_quant)); |
468 |
|
|
} |
469 |
|
|
|
470 |
✗✓ |
265 |
if ((ret = decode_residues(s, &decoded[filter_order], |
471 |
|
|
subframe_size - filter_order)) < 0) |
472 |
|
|
return ret; |
473 |
|
|
|
474 |
✓✓ |
10137 |
for (i = 0; i < filter_order; i++) |
475 |
|
9872 |
s->residues[i] = *decoded++ >> dshift; |
476 |
|
|
|
477 |
|
265 |
y = FF_ARRAY_ELEMS(s->residues) - filter_order; |
478 |
|
265 |
x = subframe_size - filter_order; |
479 |
✓✓ |
2113 |
while (x > 0) { |
480 |
|
1848 |
int tmp = FFMIN(y, x); |
481 |
|
|
|
482 |
✓✓ |
835784 |
for (i = 0; i < tmp; i++) { |
483 |
|
833936 |
int v = 1 << (filter_quant - 1); |
484 |
|
|
|
485 |
✓✓ |
833936 |
if (filter_order & -16) |
486 |
|
685736 |
v += (unsigned)s->adsp.scalarproduct_int16(&s->residues[i], s->filter, |
487 |
|
|
filter_order & -16); |
488 |
✓✓ |
1303584 |
for (j = filter_order & -16; j < filter_order; j += 4) { |
489 |
|
469648 |
v += s->residues[i + j + 3] * (unsigned)s->filter[j + 3] + |
490 |
|
469648 |
s->residues[i + j + 2] * (unsigned)s->filter[j + 2] + |
491 |
|
469648 |
s->residues[i + j + 1] * (unsigned)s->filter[j + 1] + |
492 |
|
469648 |
s->residues[i + j ] * (unsigned)s->filter[j ]; |
493 |
|
|
} |
494 |
|
833936 |
v = (av_clip_intp2(v >> filter_quant, 13) * (1 << dshift)) - (unsigned)*decoded; |
495 |
|
833936 |
*decoded++ = v; |
496 |
|
833936 |
s->residues[filter_order + i] = v >> dshift; |
497 |
|
|
} |
498 |
|
|
|
499 |
|
1848 |
x -= tmp; |
500 |
✓✓ |
1848 |
if (x > 0) |
501 |
|
1583 |
memcpy(s->residues, &s->residues[y], 2 * filter_order); |
502 |
|
|
} |
503 |
|
|
|
504 |
|
265 |
emms_c(); |
505 |
|
|
|
506 |
|
265 |
return 0; |
507 |
|
|
} |
508 |
|
|
|
509 |
|
76 |
static int decode_channel(TAKDecContext *s, int chan) |
510 |
|
|
{ |
511 |
|
76 |
AVCodecContext *avctx = s->avctx; |
512 |
|
76 |
GetBitContext *gb = &s->gb; |
513 |
|
76 |
int32_t *decoded = s->decoded[chan]; |
514 |
|
76 |
int left = s->nb_samples - 1; |
515 |
|
76 |
int i = 0, ret, prev = 0; |
516 |
|
|
|
517 |
|
76 |
s->sample_shift[chan] = get_bits_esc4(gb); |
518 |
✗✓ |
76 |
if (s->sample_shift[chan] >= avctx->bits_per_raw_sample) |
519 |
|
|
return AVERROR_INVALIDDATA; |
520 |
|
|
|
521 |
|
76 |
*decoded++ = get_sbits(gb, avctx->bits_per_raw_sample - s->sample_shift[chan]); |
522 |
|
76 |
s->lpc_mode[chan] = get_bits(gb, 2); |
523 |
|
76 |
s->nb_subframes = get_bits(gb, 3) + 1; |
524 |
|
|
|
525 |
✓✓ |
76 |
if (s->nb_subframes > 1) { |
526 |
✗✓ |
68 |
if (get_bits_left(gb) < (s->nb_subframes - 1) * 6) |
527 |
|
|
return AVERROR_INVALIDDATA; |
528 |
|
|
|
529 |
✓✓ |
257 |
for (; i < s->nb_subframes - 1; i++) { |
530 |
|
189 |
int v = get_bits(gb, 6); |
531 |
|
|
|
532 |
|
189 |
s->subframe_len[i] = (v - prev) * s->subframe_scale; |
533 |
✗✓ |
189 |
if (s->subframe_len[i] <= 0) |
534 |
|
|
return AVERROR_INVALIDDATA; |
535 |
|
|
|
536 |
|
189 |
left -= s->subframe_len[i]; |
537 |
|
189 |
prev = v; |
538 |
|
|
} |
539 |
|
|
|
540 |
✗✓ |
68 |
if (left <= 0) |
541 |
|
|
return AVERROR_INVALIDDATA; |
542 |
|
|
} |
543 |
|
76 |
s->subframe_len[i] = left; |
544 |
|
|
|
545 |
|
76 |
prev = 0; |
546 |
✓✓ |
341 |
for (i = 0; i < s->nb_subframes; i++) { |
547 |
✗✓ |
265 |
if ((ret = decode_subframe(s, decoded, s->subframe_len[i], prev)) < 0) |
548 |
|
|
return ret; |
549 |
|
265 |
decoded += s->subframe_len[i]; |
550 |
|
265 |
prev = s->subframe_len[i]; |
551 |
|
|
} |
552 |
|
|
|
553 |
|
76 |
return 0; |
554 |
|
|
} |
555 |
|
|
|
556 |
|
38 |
static int decorrelate(TAKDecContext *s, int c1, int c2, int length) |
557 |
|
|
{ |
558 |
|
38 |
GetBitContext *gb = &s->gb; |
559 |
✓✓ |
38 |
int32_t *p1 = s->decoded[c1] + (s->dmode > 5); |
560 |
✓✓ |
38 |
int32_t *p2 = s->decoded[c2] + (s->dmode > 5); |
561 |
|
38 |
int32_t bp1 = p1[0]; |
562 |
|
38 |
int32_t bp2 = p2[0]; |
563 |
|
|
int i; |
564 |
|
|
int dshift, dfactor; |
565 |
|
|
|
566 |
|
38 |
length += s->dmode < 6; |
567 |
|
|
|
568 |
✓✗✓✓
✓✓✓✗
|
38 |
switch (s->dmode) { |
569 |
|
1 |
case 1: /* left/side */ |
570 |
|
1 |
s->tdsp.decorrelate_ls(p1, p2, length); |
571 |
|
1 |
break; |
572 |
|
|
case 2: /* side/right */ |
573 |
|
|
s->tdsp.decorrelate_sr(p1, p2, length); |
574 |
|
|
break; |
575 |
|
2 |
case 3: /* side/mid */ |
576 |
|
2 |
s->tdsp.decorrelate_sm(p1, p2, length); |
577 |
|
2 |
break; |
578 |
|
3 |
case 4: /* side/left with scale factor */ |
579 |
|
3 |
FFSWAP(int32_t*, p1, p2); |
580 |
|
3 |
FFSWAP(int32_t, bp1, bp2); |
581 |
|
5 |
case 5: /* side/right with scale factor */ |
582 |
|
5 |
dshift = get_bits_esc4(gb); |
583 |
|
5 |
dfactor = get_sbits(gb, 10); |
584 |
|
5 |
s->tdsp.decorrelate_sf(p1, p2, length, dshift, dfactor); |
585 |
|
5 |
break; |
586 |
|
13 |
case 6: |
587 |
|
13 |
FFSWAP(int32_t*, p1, p2); |
588 |
|
30 |
case 7: { |
589 |
|
|
int length2, order_half, filter_order, dval1, dval2; |
590 |
|
|
int tmp, x, code_size; |
591 |
|
|
|
592 |
✗✓ |
30 |
if (length < 256) |
593 |
|
|
return AVERROR_INVALIDDATA; |
594 |
|
|
|
595 |
|
30 |
dshift = get_bits_esc4(gb); |
596 |
|
30 |
filter_order = 8 << get_bits1(gb); |
597 |
|
30 |
dval1 = get_bits1(gb); |
598 |
|
30 |
dval2 = get_bits1(gb); |
599 |
|
|
|
600 |
✓✓ |
366 |
for (i = 0; i < filter_order; i++) { |
601 |
✓✓ |
336 |
if (!(i & 3)) |
602 |
|
84 |
code_size = 14 - get_bits(gb, 3); |
603 |
|
336 |
s->filter[i] = get_sbits(gb, code_size); |
604 |
|
|
} |
605 |
|
|
|
606 |
|
30 |
order_half = filter_order / 2; |
607 |
|
30 |
length2 = length - (filter_order - 1); |
608 |
|
|
|
609 |
|
|
/* decorrelate beginning samples */ |
610 |
✓✓ |
30 |
if (dval1) { |
611 |
✓✓ |
141 |
for (i = 0; i < order_half; i++) { |
612 |
|
120 |
int32_t a = p1[i]; |
613 |
|
120 |
int32_t b = p2[i]; |
614 |
|
120 |
p1[i] = a + b; |
615 |
|
|
} |
616 |
|
|
} |
617 |
|
|
|
618 |
|
|
/* decorrelate ending samples */ |
619 |
✓✓ |
30 |
if (dval2) { |
620 |
✓✓ |
96 |
for (i = length2 + order_half; i < length; i++) { |
621 |
|
78 |
int32_t a = p1[i]; |
622 |
|
78 |
int32_t b = p2[i]; |
623 |
|
78 |
p1[i] = a + b; |
624 |
|
|
} |
625 |
|
|
} |
626 |
|
|
|
627 |
|
|
|
628 |
✓✓ |
366 |
for (i = 0; i < filter_order; i++) |
629 |
|
336 |
s->residues[i] = *p2++ >> dshift; |
630 |
|
|
|
631 |
|
30 |
p1 += order_half; |
632 |
|
30 |
x = FF_ARRAY_ELEMS(s->residues) - filter_order; |
633 |
✓✓ |
660 |
for (; length2 > 0; length2 -= tmp) { |
634 |
|
630 |
tmp = FFMIN(length2, x); |
635 |
|
|
|
636 |
✓✓ |
331014 |
for (i = 0; i < tmp - (tmp == length2); i++) |
637 |
|
330384 |
s->residues[filter_order + i] = *p2++ >> dshift; |
638 |
|
|
|
639 |
✓✓ |
331044 |
for (i = 0; i < tmp; i++) { |
640 |
|
330414 |
int v = 1 << 9; |
641 |
|
|
|
642 |
✓✓ |
330414 |
if (filter_order == 16) { |
643 |
|
132108 |
v += s->adsp.scalarproduct_int16(&s->residues[i], s->filter, |
644 |
|
|
filter_order); |
645 |
|
|
} else { |
646 |
|
198306 |
v += s->residues[i + 7] * s->filter[7] + |
647 |
|
198306 |
s->residues[i + 6] * s->filter[6] + |
648 |
|
198306 |
s->residues[i + 5] * s->filter[5] + |
649 |
|
198306 |
s->residues[i + 4] * s->filter[4] + |
650 |
|
198306 |
s->residues[i + 3] * s->filter[3] + |
651 |
|
198306 |
s->residues[i + 2] * s->filter[2] + |
652 |
|
198306 |
s->residues[i + 1] * s->filter[1] + |
653 |
|
198306 |
s->residues[i ] * s->filter[0]; |
654 |
|
|
} |
655 |
|
|
|
656 |
|
330414 |
v = av_clip_intp2(v >> 10, 13) * (1U << dshift) - *p1; |
657 |
|
330414 |
*p1++ = v; |
658 |
|
|
} |
659 |
|
|
|
660 |
|
630 |
memmove(s->residues, &s->residues[tmp], 2 * filter_order); |
661 |
|
|
} |
662 |
|
|
|
663 |
|
30 |
emms_c(); |
664 |
|
30 |
break; |
665 |
|
|
} |
666 |
|
|
} |
667 |
|
|
|
668 |
✓✗✓✓
|
38 |
if (s->dmode > 0 && s->dmode < 6) { |
669 |
|
8 |
p1[0] = bp1; |
670 |
|
8 |
p2[0] = bp2; |
671 |
|
|
} |
672 |
|
|
|
673 |
|
38 |
return 0; |
674 |
|
|
} |
675 |
|
|
|
676 |
|
38 |
static int tak_decode_frame(AVCodecContext *avctx, void *data, |
677 |
|
|
int *got_frame_ptr, AVPacket *pkt) |
678 |
|
|
{ |
679 |
|
38 |
TAKDecContext *s = avctx->priv_data; |
680 |
|
38 |
AVFrame *frame = data; |
681 |
|
38 |
ThreadFrame tframe = { .f = data }; |
682 |
|
38 |
GetBitContext *gb = &s->gb; |
683 |
|
|
int chan, i, ret, hsize; |
684 |
|
|
|
685 |
✗✓ |
38 |
if (pkt->size < TAK_MIN_FRAME_HEADER_BYTES) |
686 |
|
|
return AVERROR_INVALIDDATA; |
687 |
|
|
|
688 |
✗✓ |
38 |
if ((ret = init_get_bits8(gb, pkt->data, pkt->size)) < 0) |
689 |
|
|
return ret; |
690 |
|
|
|
691 |
✗✓ |
38 |
if ((ret = ff_tak_decode_frame_header(avctx, gb, &s->ti, 0)) < 0) |
692 |
|
|
return ret; |
693 |
|
|
|
694 |
|
38 |
hsize = get_bits_count(gb) / 8; |
695 |
✗✓ |
38 |
if (avctx->err_recognition & (AV_EF_CRCCHECK|AV_EF_COMPLIANT)) { |
696 |
|
|
if (ff_tak_check_crc(pkt->data, hsize)) { |
697 |
|
|
av_log(avctx, AV_LOG_ERROR, "CRC error\n"); |
698 |
|
|
if (avctx->err_recognition & AV_EF_EXPLODE) |
699 |
|
|
return AVERROR_INVALIDDATA; |
700 |
|
|
} |
701 |
|
|
} |
702 |
|
|
|
703 |
✗✓ |
38 |
if (s->ti.codec != TAK_CODEC_MONO_STEREO && |
704 |
|
|
s->ti.codec != TAK_CODEC_MULTICHANNEL) { |
705 |
|
|
avpriv_report_missing_feature(avctx, "TAK codec type %d", s->ti.codec); |
706 |
|
|
return AVERROR_PATCHWELCOME; |
707 |
|
|
} |
708 |
✗✓ |
38 |
if (s->ti.data_type) { |
709 |
|
|
av_log(avctx, AV_LOG_ERROR, |
710 |
|
|
"unsupported data type: %d\n", s->ti.data_type); |
711 |
|
|
return AVERROR_INVALIDDATA; |
712 |
|
|
} |
713 |
✓✗✗✓
|
38 |
if (s->ti.codec == TAK_CODEC_MONO_STEREO && s->ti.channels > 2) { |
714 |
|
|
av_log(avctx, AV_LOG_ERROR, |
715 |
|
|
"invalid number of channels: %d\n", s->ti.channels); |
716 |
|
|
return AVERROR_INVALIDDATA; |
717 |
|
|
} |
718 |
✗✓ |
38 |
if (s->ti.channels > 6) { |
719 |
|
|
av_log(avctx, AV_LOG_ERROR, |
720 |
|
|
"unsupported number of channels: %d\n", s->ti.channels); |
721 |
|
|
return AVERROR_INVALIDDATA; |
722 |
|
|
} |
723 |
|
|
|
724 |
✗✓ |
38 |
if (s->ti.frame_samples <= 0) { |
725 |
|
|
av_log(avctx, AV_LOG_ERROR, "unsupported/invalid number of samples\n"); |
726 |
|
|
return AVERROR_INVALIDDATA; |
727 |
|
|
} |
728 |
|
|
|
729 |
|
38 |
avctx->bits_per_raw_sample = s->ti.bps; |
730 |
✗✓ |
38 |
if ((ret = set_bps_params(avctx)) < 0) |
731 |
|
|
return ret; |
732 |
✗✓ |
38 |
if (s->ti.sample_rate != avctx->sample_rate) { |
733 |
|
|
avctx->sample_rate = s->ti.sample_rate; |
734 |
|
|
set_sample_rate_params(avctx); |
735 |
|
|
} |
736 |
✗✓ |
38 |
if (s->ti.ch_layout) |
737 |
|
|
avctx->channel_layout = s->ti.ch_layout; |
738 |
|
38 |
avctx->channels = s->ti.channels; |
739 |
|
|
|
740 |
|
76 |
s->nb_samples = s->ti.last_frame_samples ? s->ti.last_frame_samples |
741 |
✓✓ |
38 |
: s->ti.frame_samples; |
742 |
|
|
|
743 |
|
38 |
frame->nb_samples = s->nb_samples; |
744 |
✗✓ |
38 |
if ((ret = ff_thread_get_buffer(avctx, &tframe, 0)) < 0) |
745 |
|
|
return ret; |
746 |
|
38 |
ff_thread_finish_setup(avctx); |
747 |
|
|
|
748 |
✓✗ |
38 |
if (avctx->bits_per_raw_sample <= 16) { |
749 |
|
38 |
int buf_size = av_samples_get_buffer_size(NULL, avctx->channels, |
750 |
|
|
s->nb_samples, |
751 |
|
|
AV_SAMPLE_FMT_S32P, 0); |
752 |
✗✓ |
38 |
if (buf_size < 0) |
753 |
|
|
return buf_size; |
754 |
|
38 |
av_fast_malloc(&s->decode_buffer, &s->decode_buffer_size, buf_size); |
755 |
✗✓ |
38 |
if (!s->decode_buffer) |
756 |
|
|
return AVERROR(ENOMEM); |
757 |
|
38 |
ret = av_samples_fill_arrays((uint8_t **)s->decoded, NULL, |
758 |
|
38 |
s->decode_buffer, avctx->channels, |
759 |
|
|
s->nb_samples, AV_SAMPLE_FMT_S32P, 0); |
760 |
✗✓ |
38 |
if (ret < 0) |
761 |
|
|
return ret; |
762 |
|
|
} else { |
763 |
|
|
for (chan = 0; chan < avctx->channels; chan++) |
764 |
|
|
s->decoded[chan] = (int32_t *)frame->extended_data[chan]; |
765 |
|
|
} |
766 |
|
|
|
767 |
✗✓ |
38 |
if (s->nb_samples < 16) { |
768 |
|
|
for (chan = 0; chan < avctx->channels; chan++) { |
769 |
|
|
int32_t *decoded = s->decoded[chan]; |
770 |
|
|
for (i = 0; i < s->nb_samples; i++) |
771 |
|
|
decoded[i] = get_sbits(gb, avctx->bits_per_raw_sample); |
772 |
|
|
} |
773 |
|
|
} else { |
774 |
✓✗ |
38 |
if (s->ti.codec == TAK_CODEC_MONO_STEREO) { |
775 |
✓✓ |
114 |
for (chan = 0; chan < avctx->channels; chan++) |
776 |
✗✓ |
76 |
if (ret = decode_channel(s, chan)) |
777 |
|
|
return ret; |
778 |
|
|
|
779 |
✓✗ |
38 |
if (avctx->channels == 2) { |
780 |
|
38 |
s->nb_subframes = get_bits(gb, 1) + 1; |
781 |
✗✓ |
38 |
if (s->nb_subframes > 1) { |
782 |
|
|
s->subframe_len[1] = get_bits(gb, 6); |
783 |
|
|
} |
784 |
|
|
|
785 |
|
38 |
s->dmode = get_bits(gb, 3); |
786 |
✗✓ |
38 |
if (ret = decorrelate(s, 0, 1, s->nb_samples - 1)) |
787 |
|
|
return ret; |
788 |
|
|
} |
789 |
|
|
} else if (s->ti.codec == TAK_CODEC_MULTICHANNEL) { |
790 |
|
|
if (get_bits1(gb)) { |
791 |
|
|
int ch_mask = 0; |
792 |
|
|
|
793 |
|
|
chan = get_bits(gb, 4) + 1; |
794 |
|
|
if (chan > avctx->channels) |
795 |
|
|
return AVERROR_INVALIDDATA; |
796 |
|
|
|
797 |
|
|
for (i = 0; i < chan; i++) { |
798 |
|
|
int nbit = get_bits(gb, 4); |
799 |
|
|
|
800 |
|
|
if (nbit >= avctx->channels) |
801 |
|
|
return AVERROR_INVALIDDATA; |
802 |
|
|
|
803 |
|
|
if (ch_mask & 1 << nbit) |
804 |
|
|
return AVERROR_INVALIDDATA; |
805 |
|
|
|
806 |
|
|
s->mcdparams[i].present = get_bits1(gb); |
807 |
|
|
if (s->mcdparams[i].present) { |
808 |
|
|
s->mcdparams[i].index = get_bits(gb, 2); |
809 |
|
|
s->mcdparams[i].chan2 = get_bits(gb, 4); |
810 |
|
|
if (s->mcdparams[i].chan2 >= avctx->channels) { |
811 |
|
|
av_log(avctx, AV_LOG_ERROR, |
812 |
|
|
"invalid channel 2 (%d) for %d channel(s)\n", |
813 |
|
|
s->mcdparams[i].chan2, avctx->channels); |
814 |
|
|
return AVERROR_INVALIDDATA; |
815 |
|
|
} |
816 |
|
|
if (s->mcdparams[i].index == 1) { |
817 |
|
|
if ((nbit == s->mcdparams[i].chan2) || |
818 |
|
|
(ch_mask & 1 << s->mcdparams[i].chan2)) |
819 |
|
|
return AVERROR_INVALIDDATA; |
820 |
|
|
|
821 |
|
|
ch_mask |= 1 << s->mcdparams[i].chan2; |
822 |
|
|
} else if (!(ch_mask & 1 << s->mcdparams[i].chan2)) { |
823 |
|
|
return AVERROR_INVALIDDATA; |
824 |
|
|
} |
825 |
|
|
} |
826 |
|
|
s->mcdparams[i].chan1 = nbit; |
827 |
|
|
|
828 |
|
|
ch_mask |= 1 << nbit; |
829 |
|
|
} |
830 |
|
|
} else { |
831 |
|
|
chan = avctx->channels; |
832 |
|
|
for (i = 0; i < chan; i++) { |
833 |
|
|
s->mcdparams[i].present = 0; |
834 |
|
|
s->mcdparams[i].chan1 = i; |
835 |
|
|
} |
836 |
|
|
} |
837 |
|
|
|
838 |
|
|
for (i = 0; i < chan; i++) { |
839 |
|
|
if (s->mcdparams[i].present && s->mcdparams[i].index == 1) |
840 |
|
|
if (ret = decode_channel(s, s->mcdparams[i].chan2)) |
841 |
|
|
return ret; |
842 |
|
|
|
843 |
|
|
if (ret = decode_channel(s, s->mcdparams[i].chan1)) |
844 |
|
|
return ret; |
845 |
|
|
|
846 |
|
|
if (s->mcdparams[i].present) { |
847 |
|
|
s->dmode = mc_dmodes[s->mcdparams[i].index]; |
848 |
|
|
if (ret = decorrelate(s, |
849 |
|
|
s->mcdparams[i].chan2, |
850 |
|
|
s->mcdparams[i].chan1, |
851 |
|
|
s->nb_samples - 1)) |
852 |
|
|
return ret; |
853 |
|
|
} |
854 |
|
|
} |
855 |
|
|
} |
856 |
|
|
|
857 |
✓✓ |
114 |
for (chan = 0; chan < avctx->channels; chan++) { |
858 |
|
76 |
int32_t *decoded = s->decoded[chan]; |
859 |
|
|
|
860 |
✓✗ |
76 |
if (s->lpc_mode[chan]) |
861 |
|
76 |
decode_lpc(decoded, s->lpc_mode[chan], s->nb_samples); |
862 |
|
|
|
863 |
✗✓ |
76 |
if (s->sample_shift[chan] > 0) |
864 |
|
|
for (i = 0; i < s->nb_samples; i++) |
865 |
|
|
decoded[i] *= 1U << s->sample_shift[chan]; |
866 |
|
|
} |
867 |
|
|
} |
868 |
|
|
|
869 |
|
38 |
align_get_bits(gb); |
870 |
|
38 |
skip_bits(gb, 24); |
871 |
✗✓ |
38 |
if (get_bits_left(gb) < 0) |
872 |
|
|
av_log(avctx, AV_LOG_DEBUG, "overread\n"); |
873 |
✗✓ |
38 |
else if (get_bits_left(gb) > 0) |
874 |
|
|
av_log(avctx, AV_LOG_DEBUG, "underread\n"); |
875 |
|
|
|
876 |
✗✓ |
38 |
if (avctx->err_recognition & (AV_EF_CRCCHECK | AV_EF_COMPLIANT)) { |
877 |
|
|
if (ff_tak_check_crc(pkt->data + hsize, |
878 |
|
|
get_bits_count(gb) / 8 - hsize)) { |
879 |
|
|
av_log(avctx, AV_LOG_ERROR, "CRC error\n"); |
880 |
|
|
if (avctx->err_recognition & AV_EF_EXPLODE) |
881 |
|
|
return AVERROR_INVALIDDATA; |
882 |
|
|
} |
883 |
|
|
} |
884 |
|
|
|
885 |
|
|
/* convert to output buffer */ |
886 |
✗✓✗✗
|
38 |
switch (avctx->sample_fmt) { |
887 |
|
|
case AV_SAMPLE_FMT_U8P: |
888 |
|
|
for (chan = 0; chan < avctx->channels; chan++) { |
889 |
|
|
uint8_t *samples = (uint8_t *)frame->extended_data[chan]; |
890 |
|
|
int32_t *decoded = s->decoded[chan]; |
891 |
|
|
for (i = 0; i < s->nb_samples; i++) |
892 |
|
|
samples[i] = decoded[i] + 0x80U; |
893 |
|
|
} |
894 |
|
|
break; |
895 |
|
38 |
case AV_SAMPLE_FMT_S16P: |
896 |
✓✓ |
114 |
for (chan = 0; chan < avctx->channels; chan++) { |
897 |
|
76 |
int16_t *samples = (int16_t *)frame->extended_data[chan]; |
898 |
|
76 |
int32_t *decoded = s->decoded[chan]; |
899 |
✓✓ |
837976 |
for (i = 0; i < s->nb_samples; i++) |
900 |
|
837900 |
samples[i] = decoded[i]; |
901 |
|
|
} |
902 |
|
38 |
break; |
903 |
|
|
case AV_SAMPLE_FMT_S32P: |
904 |
|
|
for (chan = 0; chan < avctx->channels; chan++) { |
905 |
|
|
int32_t *samples = (int32_t *)frame->extended_data[chan]; |
906 |
|
|
for (i = 0; i < s->nb_samples; i++) |
907 |
|
|
samples[i] *= 1U << 8; |
908 |
|
|
} |
909 |
|
|
break; |
910 |
|
|
} |
911 |
|
|
|
912 |
|
38 |
*got_frame_ptr = 1; |
913 |
|
|
|
914 |
|
38 |
return pkt->size; |
915 |
|
|
} |
916 |
|
|
|
917 |
|
|
#if HAVE_THREADS |
918 |
|
|
static int update_thread_context(AVCodecContext *dst, |
919 |
|
|
const AVCodecContext *src) |
920 |
|
|
{ |
921 |
|
|
TAKDecContext *tsrc = src->priv_data; |
922 |
|
|
TAKDecContext *tdst = dst->priv_data; |
923 |
|
|
|
924 |
|
|
if (dst == src) |
925 |
|
|
return 0; |
926 |
|
|
memcpy(&tdst->ti, &tsrc->ti, sizeof(TAKStreamInfo)); |
927 |
|
|
return 0; |
928 |
|
|
} |
929 |
|
|
#endif |
930 |
|
|
|
931 |
|
2 |
static av_cold int tak_decode_close(AVCodecContext *avctx) |
932 |
|
|
{ |
933 |
|
2 |
TAKDecContext *s = avctx->priv_data; |
934 |
|
|
|
935 |
|
2 |
av_freep(&s->decode_buffer); |
936 |
|
|
|
937 |
|
2 |
return 0; |
938 |
|
|
} |
939 |
|
|
|
940 |
|
|
AVCodec ff_tak_decoder = { |
941 |
|
|
.name = "tak", |
942 |
|
|
.long_name = NULL_IF_CONFIG_SMALL("TAK (Tom's lossless Audio Kompressor)"), |
943 |
|
|
.type = AVMEDIA_TYPE_AUDIO, |
944 |
|
|
.id = AV_CODEC_ID_TAK, |
945 |
|
|
.priv_data_size = sizeof(TAKDecContext), |
946 |
|
|
.init = tak_decode_init, |
947 |
|
|
.close = tak_decode_close, |
948 |
|
|
.decode = tak_decode_frame, |
949 |
|
|
.update_thread_context = ONLY_IF_THREADS_ENABLED(update_thread_context), |
950 |
|
|
.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS, |
951 |
|
|
.sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_U8P, |
952 |
|
|
AV_SAMPLE_FMT_S16P, |
953 |
|
|
AV_SAMPLE_FMT_S32P, |
954 |
|
|
AV_SAMPLE_FMT_NONE }, |
955 |
|
|
}; |