mirror of
https://github.com/FFmpeg/FFmpeg.git
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790f793844
There are lots of files that don't need it: The number of object files that actually need it went down from 2011 to 884 here. Keep it for external users in order to not cause breakages. Also improve the other headers a bit while just at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2989 lines
96 KiB
C
2989 lines
96 KiB
C
/*
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* WavPack lossless audio encoder
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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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#define BITSTREAM_WRITER_LE
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#include "libavutil/channel_layout.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/mem.h"
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#include "libavutil/opt.h"
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#include "avcodec.h"
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#include "codec_internal.h"
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#include "encode.h"
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#include "put_bits.h"
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#include "bytestream.h"
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#include "wavpackenc.h"
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#include "wavpack.h"
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#define UPDATE_WEIGHT(weight, delta, source, result) \
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if ((source) && (result)) { \
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int32_t s = (int32_t) ((source) ^ (result)) >> 31; \
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weight = ((delta) ^ s) + ((weight) - s); \
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}
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#define APPLY_WEIGHT_F(weight, sample) ((((((sample) & 0xffff) * (weight)) >> 9) + \
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((((sample) & ~0xffff) >> 9) * (weight)) + 1) >> 1)
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#define APPLY_WEIGHT_I(weight, sample) (((weight) * (sample) + 512) >> 10)
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#define APPLY_WEIGHT(weight, sample) ((sample) != (short) (sample) ? \
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APPLY_WEIGHT_F(weight, sample) : APPLY_WEIGHT_I (weight, sample))
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#define CLEAR(destin) memset(&destin, 0, sizeof(destin));
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#define SHIFT_LSB 13
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#define SHIFT_MASK (0x1FU << SHIFT_LSB)
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#define MAG_LSB 18
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#define MAG_MASK (0x1FU << MAG_LSB)
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#define SRATE_LSB 23
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#define SRATE_MASK (0xFU << SRATE_LSB)
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#define EXTRA_TRY_DELTAS 1
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#define EXTRA_ADJUST_DELTAS 2
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#define EXTRA_SORT_FIRST 4
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#define EXTRA_BRANCHES 8
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#define EXTRA_SORT_LAST 16
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typedef struct WavPackExtraInfo {
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struct Decorr dps[MAX_TERMS];
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int nterms, log_limit, gt16bit;
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uint32_t best_bits;
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} WavPackExtraInfo;
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typedef struct WavPackWords {
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int pend_data, holding_one, zeros_acc;
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int holding_zero, pend_count;
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WvChannel c[2];
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} WavPackWords;
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typedef struct WavPackEncodeContext {
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AVClass *class;
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AVCodecContext *avctx;
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PutBitContext pb;
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int block_samples;
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int buffer_size;
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int sample_index;
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int stereo, stereo_in;
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int ch_offset;
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int32_t *samples[2];
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int samples_size[2];
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int32_t *sampleptrs[MAX_TERMS+2][2];
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int sampleptrs_size[MAX_TERMS+2][2];
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int32_t *temp_buffer[2][2];
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int temp_buffer_size[2][2];
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int32_t *best_buffer[2];
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int best_buffer_size[2];
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int32_t *js_left, *js_right;
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int js_left_size, js_right_size;
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int32_t *orig_l, *orig_r;
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int orig_l_size, orig_r_size;
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unsigned extra_flags;
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int optimize_mono;
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int decorr_filter;
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int joint;
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int num_branches;
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uint32_t flags;
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uint32_t crc_x;
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WavPackWords w;
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uint8_t int32_sent_bits, int32_zeros, int32_ones, int32_dups;
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uint8_t float_flags, float_shift, float_max_exp, max_exp;
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int32_t shifted_ones, shifted_zeros, shifted_both;
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int32_t false_zeros, neg_zeros, ordata;
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int num_terms, shift, joint_stereo, false_stereo;
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int num_decorrs, num_passes, best_decorr, mask_decorr;
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struct Decorr decorr_passes[MAX_TERMS];
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const WavPackDecorrSpec *decorr_specs;
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float delta_decay;
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} WavPackEncodeContext;
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static av_cold int wavpack_encode_init(AVCodecContext *avctx)
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{
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WavPackEncodeContext *s = avctx->priv_data;
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s->avctx = avctx;
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if (avctx->ch_layout.nb_channels > 255) {
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av_log(avctx, AV_LOG_ERROR, "Invalid channel count: %d\n", avctx->ch_layout.nb_channels);
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return AVERROR(EINVAL);
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}
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if (!avctx->frame_size) {
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int block_samples;
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if (!(avctx->sample_rate & 1))
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block_samples = avctx->sample_rate / 2;
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else
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block_samples = avctx->sample_rate;
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while (block_samples * avctx->ch_layout.nb_channels > WV_MAX_SAMPLES)
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block_samples /= 2;
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while (block_samples * avctx->ch_layout.nb_channels < 40000)
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block_samples *= 2;
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avctx->frame_size = block_samples;
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} else if (avctx->frame_size && (avctx->frame_size < 128 ||
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avctx->frame_size > WV_MAX_SAMPLES)) {
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av_log(avctx, AV_LOG_ERROR, "invalid block size: %d\n", avctx->frame_size);
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return AVERROR(EINVAL);
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}
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if (avctx->compression_level != FF_COMPRESSION_DEFAULT) {
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if (avctx->compression_level >= 3) {
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s->decorr_filter = 3;
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s->num_passes = 9;
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if (avctx->compression_level >= 8) {
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s->num_branches = 4;
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s->extra_flags = EXTRA_TRY_DELTAS|EXTRA_ADJUST_DELTAS|EXTRA_SORT_FIRST|EXTRA_SORT_LAST|EXTRA_BRANCHES;
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} else if (avctx->compression_level >= 7) {
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s->num_branches = 3;
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s->extra_flags = EXTRA_TRY_DELTAS|EXTRA_ADJUST_DELTAS|EXTRA_SORT_FIRST|EXTRA_BRANCHES;
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} else if (avctx->compression_level >= 6) {
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s->num_branches = 2;
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s->extra_flags = EXTRA_TRY_DELTAS|EXTRA_ADJUST_DELTAS|EXTRA_SORT_FIRST|EXTRA_BRANCHES;
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} else if (avctx->compression_level >= 5) {
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s->num_branches = 1;
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s->extra_flags = EXTRA_TRY_DELTAS|EXTRA_ADJUST_DELTAS|EXTRA_SORT_FIRST|EXTRA_BRANCHES;
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} else if (avctx->compression_level >= 4) {
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s->num_branches = 1;
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s->extra_flags = EXTRA_TRY_DELTAS|EXTRA_ADJUST_DELTAS|EXTRA_BRANCHES;
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}
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} else if (avctx->compression_level == 2) {
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s->decorr_filter = 2;
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s->num_passes = 4;
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} else if (avctx->compression_level == 1) {
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s->decorr_filter = 1;
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s->num_passes = 2;
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} else if (avctx->compression_level < 1) {
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s->decorr_filter = 0;
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s->num_passes = 0;
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}
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}
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s->num_decorrs = decorr_filter_sizes[s->decorr_filter];
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s->decorr_specs = decorr_filters[s->decorr_filter];
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s->delta_decay = 2.0;
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return 0;
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}
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static void shift_mono(int32_t *samples, int nb_samples, int shift)
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{
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int i;
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for (i = 0; i < nb_samples; i++)
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samples[i] >>= shift;
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}
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static void shift_stereo(int32_t *left, int32_t *right,
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int nb_samples, int shift)
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{
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int i;
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for (i = 0; i < nb_samples; i++) {
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left [i] >>= shift;
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right[i] >>= shift;
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}
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}
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#define FLOAT_SHIFT_ONES 1
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#define FLOAT_SHIFT_SAME 2
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#define FLOAT_SHIFT_SENT 4
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#define FLOAT_ZEROS_SENT 8
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#define FLOAT_NEG_ZEROS 0x10
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#define FLOAT_EXCEPTIONS 0x20
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#define get_mantissa(f) ((f) & 0x7fffff)
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#define get_exponent(f) (((f) >> 23) & 0xff)
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#define get_sign(f) (((f) >> 31) & 0x1)
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static void process_float(WavPackEncodeContext *s, int32_t *sample)
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{
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int32_t shift_count, value, f = *sample;
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if (get_exponent(f) == 255) {
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s->float_flags |= FLOAT_EXCEPTIONS;
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value = 0x1000000;
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shift_count = 0;
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} else if (get_exponent(f)) {
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shift_count = s->max_exp - get_exponent(f);
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value = 0x800000 + get_mantissa(f);
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} else {
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shift_count = s->max_exp ? s->max_exp - 1 : 0;
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value = get_mantissa(f);
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}
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if (shift_count < 25)
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value >>= shift_count;
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else
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value = 0;
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if (!value) {
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if (get_exponent(f) || get_mantissa(f))
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s->false_zeros++;
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else if (get_sign(f))
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s->neg_zeros++;
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} else if (shift_count) {
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int32_t mask = (1 << shift_count) - 1;
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if (!(get_mantissa(f) & mask))
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s->shifted_zeros++;
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else if ((get_mantissa(f) & mask) == mask)
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s->shifted_ones++;
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else
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s->shifted_both++;
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}
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s->ordata |= value;
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*sample = get_sign(f) ? -value : value;
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}
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static int scan_float(WavPackEncodeContext *s,
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int32_t *samples_l, int32_t *samples_r,
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int nb_samples)
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{
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uint32_t crc = 0xffffffffu;
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int i;
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s->shifted_ones = s->shifted_zeros = s->shifted_both = s->ordata = 0;
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s->float_shift = s->float_flags = 0;
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s->false_zeros = s->neg_zeros = 0;
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s->max_exp = 0;
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if (s->flags & WV_MONO_DATA) {
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for (i = 0; i < nb_samples; i++) {
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int32_t f = samples_l[i];
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crc = crc * 27 + get_mantissa(f) * 9 + get_exponent(f) * 3 + get_sign(f);
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if (get_exponent(f) > s->max_exp && get_exponent(f) < 255)
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s->max_exp = get_exponent(f);
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}
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} else {
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for (i = 0; i < nb_samples; i++) {
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int32_t f;
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f = samples_l[i];
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crc = crc * 27 + get_mantissa(f) * 9 + get_exponent(f) * 3 + get_sign(f);
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if (get_exponent(f) > s->max_exp && get_exponent(f) < 255)
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s->max_exp = get_exponent(f);
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f = samples_r[i];
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crc = crc * 27 + get_mantissa(f) * 9 + get_exponent(f) * 3 + get_sign(f);
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if (get_exponent(f) > s->max_exp && get_exponent(f) < 255)
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s->max_exp = get_exponent(f);
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}
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}
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s->crc_x = crc;
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if (s->flags & WV_MONO_DATA) {
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for (i = 0; i < nb_samples; i++)
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process_float(s, &samples_l[i]);
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} else {
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for (i = 0; i < nb_samples; i++) {
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process_float(s, &samples_l[i]);
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process_float(s, &samples_r[i]);
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}
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}
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s->float_max_exp = s->max_exp;
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if (s->shifted_both)
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s->float_flags |= FLOAT_SHIFT_SENT;
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else if (s->shifted_ones && !s->shifted_zeros)
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s->float_flags |= FLOAT_SHIFT_ONES;
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else if (s->shifted_ones && s->shifted_zeros)
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s->float_flags |= FLOAT_SHIFT_SAME;
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else if (s->ordata && !(s->ordata & 1)) {
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do {
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s->float_shift++;
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s->ordata >>= 1;
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} while (!(s->ordata & 1));
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if (s->flags & WV_MONO_DATA)
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shift_mono(samples_l, nb_samples, s->float_shift);
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else
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shift_stereo(samples_l, samples_r, nb_samples, s->float_shift);
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}
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s->flags &= ~MAG_MASK;
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while (s->ordata) {
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s->flags += 1 << MAG_LSB;
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s->ordata >>= 1;
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}
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if (s->false_zeros || s->neg_zeros)
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s->float_flags |= FLOAT_ZEROS_SENT;
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if (s->neg_zeros)
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s->float_flags |= FLOAT_NEG_ZEROS;
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return s->float_flags & (FLOAT_EXCEPTIONS | FLOAT_ZEROS_SENT |
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FLOAT_SHIFT_SENT | FLOAT_SHIFT_SAME);
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}
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static void scan_int23(WavPackEncodeContext *s,
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int32_t *samples_l, int32_t *samples_r,
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int nb_samples)
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{
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uint32_t magdata = 0, ordata = 0, xordata = 0, anddata = ~0;
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int i, total_shift = 0;
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s->int32_sent_bits = s->int32_zeros = s->int32_ones = s->int32_dups = 0;
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if (s->flags & WV_MONO_DATA) {
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for (i = 0; i < nb_samples; i++) {
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int32_t M = samples_l[i];
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magdata |= (M < 0) ? ~M : M;
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xordata |= M ^ -(M & 1);
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anddata &= M;
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ordata |= M;
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if ((ordata & 1) && !(anddata & 1) && (xordata & 2))
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return;
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}
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} else {
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for (i = 0; i < nb_samples; i++) {
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int32_t L = samples_l[i];
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int32_t R = samples_r[i];
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magdata |= (L < 0) ? ~L : L;
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magdata |= (R < 0) ? ~R : R;
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xordata |= L ^ -(L & 1);
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xordata |= R ^ -(R & 1);
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anddata &= L & R;
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ordata |= L | R;
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if ((ordata & 1) && !(anddata & 1) && (xordata & 2))
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return;
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}
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}
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s->flags &= ~MAG_MASK;
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while (magdata) {
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s->flags += 1 << MAG_LSB;
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magdata >>= 1;
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}
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if (!(s->flags & MAG_MASK))
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return;
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if (!(ordata & 1)) {
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do {
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s->flags -= 1 << MAG_LSB;
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s->int32_zeros++;
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total_shift++;
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ordata >>= 1;
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} while (!(ordata & 1));
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} else if (anddata & 1) {
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do {
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s->flags -= 1 << MAG_LSB;
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s->int32_ones++;
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total_shift++;
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anddata >>= 1;
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} while (anddata & 1);
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} else if (!(xordata & 2)) {
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do {
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s->flags -= 1 << MAG_LSB;
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s->int32_dups++;
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total_shift++;
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xordata >>= 1;
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} while (!(xordata & 2));
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}
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if (total_shift) {
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s->flags |= WV_INT32_DATA;
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if (s->flags & WV_MONO_DATA)
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shift_mono(samples_l, nb_samples, total_shift);
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else
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shift_stereo(samples_l, samples_r, nb_samples, total_shift);
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}
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}
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static int scan_int32(WavPackEncodeContext *s,
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int32_t *samples_l, int32_t *samples_r,
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int nb_samples)
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{
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uint32_t magdata = 0, ordata = 0, xordata = 0, anddata = ~0;
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uint32_t crc = 0xffffffffu;
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int i, total_shift = 0;
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s->int32_sent_bits = s->int32_zeros = s->int32_ones = s->int32_dups = 0;
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if (s->flags & WV_MONO_DATA) {
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for (i = 0; i < nb_samples; i++) {
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int32_t M = samples_l[i];
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crc = crc * 9 + (M & 0xffff) * 3 + ((M >> 16) & 0xffff);
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magdata |= (M < 0) ? ~M : M;
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xordata |= M ^ -(M & 1);
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anddata &= M;
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ordata |= M;
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}
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} else {
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for (i = 0; i < nb_samples; i++) {
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int32_t L = samples_l[i];
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int32_t R = samples_r[i];
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crc = crc * 9 + (L & 0xffff) * 3 + ((L >> 16) & 0xffff);
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crc = crc * 9 + (R & 0xffff) * 3 + ((R >> 16) & 0xffff);
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magdata |= (L < 0) ? ~L : L;
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magdata |= (R < 0) ? ~R : R;
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xordata |= L ^ -(L & 1);
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xordata |= R ^ -(R & 1);
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anddata &= L & R;
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ordata |= L | R;
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}
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}
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s->crc_x = crc;
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|
s->flags &= ~MAG_MASK;
|
|
|
|
while (magdata) {
|
|
s->flags += 1 << MAG_LSB;
|
|
magdata >>= 1;
|
|
}
|
|
|
|
if (!((s->flags & MAG_MASK) >> MAG_LSB)) {
|
|
s->flags &= ~WV_INT32_DATA;
|
|
return 0;
|
|
}
|
|
|
|
if (!(ordata & 1))
|
|
do {
|
|
s->flags -= 1 << MAG_LSB;
|
|
s->int32_zeros++;
|
|
total_shift++;
|
|
ordata >>= 1;
|
|
} while (!(ordata & 1));
|
|
else if (anddata & 1)
|
|
do {
|
|
s->flags -= 1 << MAG_LSB;
|
|
s->int32_ones++;
|
|
total_shift++;
|
|
anddata >>= 1;
|
|
} while (anddata & 1);
|
|
else if (!(xordata & 2))
|
|
do {
|
|
s->flags -= 1 << MAG_LSB;
|
|
s->int32_dups++;
|
|
total_shift++;
|
|
xordata >>= 1;
|
|
} while (!(xordata & 2));
|
|
|
|
if (((s->flags & MAG_MASK) >> MAG_LSB) > 23) {
|
|
s->int32_sent_bits = (uint8_t)(((s->flags & MAG_MASK) >> MAG_LSB) - 23);
|
|
total_shift += s->int32_sent_bits;
|
|
s->flags &= ~MAG_MASK;
|
|
s->flags += 23 << MAG_LSB;
|
|
}
|
|
|
|
if (total_shift) {
|
|
s->flags |= WV_INT32_DATA;
|
|
|
|
if (s->flags & WV_MONO_DATA)
|
|
shift_mono(samples_l, nb_samples, total_shift);
|
|
else
|
|
shift_stereo(samples_l, samples_r, nb_samples, total_shift);
|
|
}
|
|
|
|
return s->int32_sent_bits;
|
|
}
|
|
|
|
static int8_t store_weight(int weight)
|
|
{
|
|
weight = av_clip(weight, -1024, 1024);
|
|
if (weight > 0)
|
|
weight -= (weight + 64) >> 7;
|
|
|
|
return (weight + 4) >> 3;
|
|
}
|
|
|
|
static int restore_weight(int8_t weight)
|
|
{
|
|
int result = 8 * weight;
|
|
|
|
if (result > 0)
|
|
result += (result + 64) >> 7;
|
|
|
|
return result;
|
|
}
|
|
|
|
static int log2s(int32_t value)
|
|
{
|
|
return (value < 0) ? -wp_log2(-value) : wp_log2(value);
|
|
}
|
|
|
|
static void decorr_mono(int32_t *in_samples, int32_t *out_samples,
|
|
int nb_samples, struct Decorr *dpp, int dir)
|
|
{
|
|
int m = 0, i;
|
|
|
|
dpp->sumA = 0;
|
|
|
|
if (dir < 0) {
|
|
out_samples += (nb_samples - 1);
|
|
in_samples += (nb_samples - 1);
|
|
}
|
|
|
|
dpp->weightA = restore_weight(store_weight(dpp->weightA));
|
|
|
|
for (i = 0; i < MAX_TERM; i++)
|
|
dpp->samplesA[i] = wp_exp2(log2s(dpp->samplesA[i]));
|
|
|
|
if (dpp->value > MAX_TERM) {
|
|
while (nb_samples--) {
|
|
int32_t left, sam_A;
|
|
|
|
sam_A = ((3 - (dpp->value & 1)) * dpp->samplesA[0] - dpp->samplesA[1]) >> !(dpp->value & 1);
|
|
|
|
dpp->samplesA[1] = dpp->samplesA[0];
|
|
dpp->samplesA[0] = left = in_samples[0];
|
|
|
|
left -= APPLY_WEIGHT(dpp->weightA, sam_A);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam_A, left);
|
|
dpp->sumA += dpp->weightA;
|
|
out_samples[0] = left;
|
|
in_samples += dir;
|
|
out_samples += dir;
|
|
}
|
|
} else if (dpp->value > 0) {
|
|
while (nb_samples--) {
|
|
int k = (m + dpp->value) & (MAX_TERM - 1);
|
|
int32_t left, sam_A;
|
|
|
|
sam_A = dpp->samplesA[m];
|
|
dpp->samplesA[k] = left = in_samples[0];
|
|
m = (m + 1) & (MAX_TERM - 1);
|
|
|
|
left -= APPLY_WEIGHT(dpp->weightA, sam_A);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam_A, left);
|
|
dpp->sumA += dpp->weightA;
|
|
out_samples[0] = left;
|
|
in_samples += dir;
|
|
out_samples += dir;
|
|
}
|
|
}
|
|
|
|
if (m && dpp->value > 0 && dpp->value <= MAX_TERM) {
|
|
int32_t temp_A[MAX_TERM];
|
|
|
|
memcpy(temp_A, dpp->samplesA, sizeof(dpp->samplesA));
|
|
|
|
for (i = 0; i < MAX_TERM; i++) {
|
|
dpp->samplesA[i] = temp_A[m];
|
|
m = (m + 1) & (MAX_TERM - 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void reverse_mono_decorr(struct Decorr *dpp)
|
|
{
|
|
if (dpp->value > MAX_TERM) {
|
|
int32_t sam_A;
|
|
|
|
if (dpp->value & 1)
|
|
sam_A = 2 * dpp->samplesA[0] - dpp->samplesA[1];
|
|
else
|
|
sam_A = (3 * dpp->samplesA[0] - dpp->samplesA[1]) >> 1;
|
|
|
|
dpp->samplesA[1] = dpp->samplesA[0];
|
|
dpp->samplesA[0] = sam_A;
|
|
|
|
if (dpp->value & 1)
|
|
sam_A = 2 * dpp->samplesA[0] - dpp->samplesA[1];
|
|
else
|
|
sam_A = (3 * dpp->samplesA[0] - dpp->samplesA[1]) >> 1;
|
|
|
|
dpp->samplesA[1] = sam_A;
|
|
} else if (dpp->value > 1) {
|
|
int i, j, k;
|
|
|
|
for (i = 0, j = dpp->value - 1, k = 0; k < dpp->value / 2; i++, j--, k++) {
|
|
i &= (MAX_TERM - 1);
|
|
j &= (MAX_TERM - 1);
|
|
dpp->samplesA[i] ^= dpp->samplesA[j];
|
|
dpp->samplesA[j] ^= dpp->samplesA[i];
|
|
dpp->samplesA[i] ^= dpp->samplesA[j];
|
|
}
|
|
}
|
|
}
|
|
|
|
#define count_bits(av) ((av) ? 32 - ff_clz(av) : 0)
|
|
|
|
static uint32_t log2sample(uint32_t v, int limit, uint32_t *result)
|
|
{
|
|
uint32_t dbits = count_bits(v);
|
|
|
|
if ((v += v >> 9) < (1 << 8)) {
|
|
*result += (dbits << 8) + ff_wp_log2_table[(v << (9 - dbits)) & 0xff];
|
|
} else {
|
|
*result += dbits = (dbits << 8) + ff_wp_log2_table[(v >> (dbits - 9)) & 0xff];
|
|
|
|
if (limit && dbits >= limit)
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static uint32_t log2mono(int32_t *samples, int nb_samples, int limit)
|
|
{
|
|
uint32_t result = 0;
|
|
while (nb_samples--) {
|
|
if (log2sample(abs(*samples++), limit, &result))
|
|
return UINT32_MAX;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static uint32_t log2stereo(int32_t *samples_l, int32_t *samples_r,
|
|
int nb_samples, int limit)
|
|
{
|
|
uint32_t result = 0;
|
|
while (nb_samples--) {
|
|
if (log2sample(abs(*samples_l++), limit, &result) ||
|
|
log2sample(abs(*samples_r++), limit, &result))
|
|
return UINT32_MAX;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static void decorr_mono_buffer(int32_t *samples, int32_t *outsamples,
|
|
int nb_samples, struct Decorr *dpp,
|
|
int tindex)
|
|
{
|
|
struct Decorr dp, *dppi = dpp + tindex;
|
|
int delta = dppi->delta, pre_delta, term = dppi->value;
|
|
|
|
if (delta == 7)
|
|
pre_delta = 7;
|
|
else if (delta < 2)
|
|
pre_delta = 3;
|
|
else
|
|
pre_delta = delta + 1;
|
|
|
|
CLEAR(dp);
|
|
dp.value = term;
|
|
dp.delta = pre_delta;
|
|
decorr_mono(samples, outsamples, FFMIN(2048, nb_samples), &dp, -1);
|
|
dp.delta = delta;
|
|
|
|
if (tindex == 0)
|
|
reverse_mono_decorr(&dp);
|
|
else
|
|
CLEAR(dp.samplesA);
|
|
|
|
memcpy(dppi->samplesA, dp.samplesA, sizeof(dp.samplesA));
|
|
dppi->weightA = dp.weightA;
|
|
|
|
if (delta == 0) {
|
|
dp.delta = 1;
|
|
decorr_mono(samples, outsamples, nb_samples, &dp, 1);
|
|
dp.delta = 0;
|
|
memcpy(dp.samplesA, dppi->samplesA, sizeof(dp.samplesA));
|
|
dppi->weightA = dp.weightA = dp.sumA / nb_samples;
|
|
}
|
|
|
|
decorr_mono(samples, outsamples, nb_samples, &dp, 1);
|
|
}
|
|
|
|
static void recurse_mono(WavPackEncodeContext *s, WavPackExtraInfo *info,
|
|
int depth, int delta, uint32_t input_bits)
|
|
{
|
|
int term, branches = s->num_branches - depth;
|
|
int32_t *samples, *outsamples;
|
|
uint32_t term_bits[22], bits;
|
|
|
|
if (branches < 1 || depth + 1 == info->nterms)
|
|
branches = 1;
|
|
|
|
CLEAR(term_bits);
|
|
samples = s->sampleptrs[depth][0];
|
|
outsamples = s->sampleptrs[depth + 1][0];
|
|
|
|
for (term = 1; term <= 18; term++) {
|
|
if (term == 17 && branches == 1 && depth + 1 < info->nterms)
|
|
continue;
|
|
|
|
if (term > 8 && term < 17)
|
|
continue;
|
|
|
|
if (!s->extra_flags && (term > 4 && term < 17))
|
|
continue;
|
|
|
|
info->dps[depth].value = term;
|
|
info->dps[depth].delta = delta;
|
|
decorr_mono_buffer(samples, outsamples, s->block_samples, info->dps, depth);
|
|
bits = log2mono(outsamples, s->block_samples, info->log_limit);
|
|
|
|
if (bits < info->best_bits) {
|
|
info->best_bits = bits;
|
|
CLEAR(s->decorr_passes);
|
|
memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * (depth + 1));
|
|
memcpy(s->sampleptrs[info->nterms + 1][0],
|
|
s->sampleptrs[depth + 1][0], s->block_samples * 4);
|
|
}
|
|
|
|
term_bits[term + 3] = bits;
|
|
}
|
|
|
|
while (depth + 1 < info->nterms && branches--) {
|
|
uint32_t local_best_bits = input_bits;
|
|
int best_term = 0, i;
|
|
|
|
for (i = 0; i < 22; i++)
|
|
if (term_bits[i] && term_bits[i] < local_best_bits) {
|
|
local_best_bits = term_bits[i];
|
|
best_term = i - 3;
|
|
}
|
|
|
|
if (!best_term)
|
|
break;
|
|
|
|
term_bits[best_term + 3] = 0;
|
|
|
|
info->dps[depth].value = best_term;
|
|
info->dps[depth].delta = delta;
|
|
decorr_mono_buffer(samples, outsamples, s->block_samples, info->dps, depth);
|
|
|
|
recurse_mono(s, info, depth + 1, delta, local_best_bits);
|
|
}
|
|
}
|
|
|
|
static void sort_mono(WavPackEncodeContext *s, WavPackExtraInfo *info)
|
|
{
|
|
int reversed = 1;
|
|
uint32_t bits;
|
|
|
|
while (reversed) {
|
|
int ri, i;
|
|
|
|
memcpy(info->dps, s->decorr_passes, sizeof(s->decorr_passes));
|
|
reversed = 0;
|
|
|
|
for (ri = 0; ri < info->nterms && s->decorr_passes[ri].value; ri++) {
|
|
|
|
if (ri + 1 >= info->nterms || !s->decorr_passes[ri+1].value)
|
|
break;
|
|
|
|
if (s->decorr_passes[ri].value == s->decorr_passes[ri+1].value) {
|
|
decorr_mono_buffer(s->sampleptrs[ri][0], s->sampleptrs[ri+1][0],
|
|
s->block_samples, info->dps, ri);
|
|
continue;
|
|
}
|
|
|
|
info->dps[ri ] = s->decorr_passes[ri+1];
|
|
info->dps[ri+1] = s->decorr_passes[ri ];
|
|
|
|
for (i = ri; i < info->nterms && s->decorr_passes[i].value; i++)
|
|
decorr_mono_buffer(s->sampleptrs[i][0], s->sampleptrs[i+1][0],
|
|
s->block_samples, info->dps, i);
|
|
|
|
bits = log2mono(s->sampleptrs[i][0], s->block_samples, info->log_limit);
|
|
if (bits < info->best_bits) {
|
|
reversed = 1;
|
|
info->best_bits = bits;
|
|
CLEAR(s->decorr_passes);
|
|
memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * i);
|
|
memcpy(s->sampleptrs[info->nterms + 1][0], s->sampleptrs[i][0],
|
|
s->block_samples * 4);
|
|
} else {
|
|
info->dps[ri ] = s->decorr_passes[ri];
|
|
info->dps[ri+1] = s->decorr_passes[ri+1];
|
|
decorr_mono_buffer(s->sampleptrs[ri][0], s->sampleptrs[ri+1][0],
|
|
s->block_samples, info->dps, ri);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void delta_mono(WavPackEncodeContext *s, WavPackExtraInfo *info)
|
|
{
|
|
int lower = 0, delta, d;
|
|
uint32_t bits;
|
|
|
|
if (!s->decorr_passes[0].value)
|
|
return;
|
|
delta = s->decorr_passes[0].delta;
|
|
|
|
for (d = delta - 1; d >= 0; d--) {
|
|
int i;
|
|
|
|
for (i = 0; i < info->nterms && s->decorr_passes[i].value; i++) {
|
|
info->dps[i].value = s->decorr_passes[i].value;
|
|
info->dps[i].delta = d;
|
|
decorr_mono_buffer(s->sampleptrs[i][0], s->sampleptrs[i+1][0],
|
|
s->block_samples, info->dps, i);
|
|
}
|
|
|
|
bits = log2mono(s->sampleptrs[i][0], s->block_samples, info->log_limit);
|
|
if (bits >= info->best_bits)
|
|
break;
|
|
|
|
lower = 1;
|
|
info->best_bits = bits;
|
|
CLEAR(s->decorr_passes);
|
|
memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * i);
|
|
memcpy(s->sampleptrs[info->nterms + 1][0], s->sampleptrs[i][0],
|
|
s->block_samples * 4);
|
|
}
|
|
|
|
for (d = delta + 1; !lower && d <= 7; d++) {
|
|
int i;
|
|
|
|
for (i = 0; i < info->nterms && s->decorr_passes[i].value; i++) {
|
|
info->dps[i].value = s->decorr_passes[i].value;
|
|
info->dps[i].delta = d;
|
|
decorr_mono_buffer(s->sampleptrs[i][0], s->sampleptrs[i+1][0],
|
|
s->block_samples, info->dps, i);
|
|
}
|
|
|
|
bits = log2mono(s->sampleptrs[i][0], s->block_samples, info->log_limit);
|
|
if (bits >= info->best_bits)
|
|
break;
|
|
|
|
info->best_bits = bits;
|
|
CLEAR(s->decorr_passes);
|
|
memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * i);
|
|
memcpy(s->sampleptrs[info->nterms + 1][0], s->sampleptrs[i][0],
|
|
s->block_samples * 4);
|
|
}
|
|
}
|
|
|
|
static int allocate_buffers2(WavPackEncodeContext *s, int nterms)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < nterms + 2; i++) {
|
|
av_fast_padded_malloc(&s->sampleptrs[i][0], &s->sampleptrs_size[i][0],
|
|
s->block_samples * 4);
|
|
if (!s->sampleptrs[i][0])
|
|
return AVERROR(ENOMEM);
|
|
if (!(s->flags & WV_MONO_DATA)) {
|
|
av_fast_padded_malloc(&s->sampleptrs[i][1], &s->sampleptrs_size[i][1],
|
|
s->block_samples * 4);
|
|
if (!s->sampleptrs[i][1])
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int allocate_buffers(WavPackEncodeContext *s)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
av_fast_padded_malloc(&s->best_buffer[0], &s->best_buffer_size[0],
|
|
s->block_samples * 4);
|
|
if (!s->best_buffer[0])
|
|
return AVERROR(ENOMEM);
|
|
|
|
av_fast_padded_malloc(&s->temp_buffer[i][0], &s->temp_buffer_size[i][0],
|
|
s->block_samples * 4);
|
|
if (!s->temp_buffer[i][0])
|
|
return AVERROR(ENOMEM);
|
|
if (!(s->flags & WV_MONO_DATA)) {
|
|
av_fast_padded_malloc(&s->best_buffer[1], &s->best_buffer_size[1],
|
|
s->block_samples * 4);
|
|
if (!s->best_buffer[1])
|
|
return AVERROR(ENOMEM);
|
|
|
|
av_fast_padded_malloc(&s->temp_buffer[i][1], &s->temp_buffer_size[i][1],
|
|
s->block_samples * 4);
|
|
if (!s->temp_buffer[i][1])
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void analyze_mono(WavPackEncodeContext *s, int32_t *samples, int do_samples)
|
|
{
|
|
WavPackExtraInfo info;
|
|
int i;
|
|
|
|
info.log_limit = (((s->flags & MAG_MASK) >> MAG_LSB) + 4) * 256;
|
|
info.log_limit = FFMIN(6912, info.log_limit);
|
|
|
|
info.nterms = s->num_terms;
|
|
|
|
if (allocate_buffers2(s, s->num_terms))
|
|
return;
|
|
|
|
memcpy(info.dps, s->decorr_passes, sizeof(info.dps));
|
|
memcpy(s->sampleptrs[0][0], samples, s->block_samples * 4);
|
|
|
|
for (i = 0; i < info.nterms && info.dps[i].value; i++)
|
|
decorr_mono(s->sampleptrs[i][0], s->sampleptrs[i + 1][0],
|
|
s->block_samples, info.dps + i, 1);
|
|
|
|
info.best_bits = log2mono(s->sampleptrs[info.nterms][0], s->block_samples, 0) * 1;
|
|
memcpy(s->sampleptrs[info.nterms + 1][0], s->sampleptrs[i][0], s->block_samples * 4);
|
|
|
|
if (s->extra_flags & EXTRA_BRANCHES)
|
|
recurse_mono(s, &info, 0, (int) floor(s->delta_decay + 0.5),
|
|
log2mono(s->sampleptrs[0][0], s->block_samples, 0));
|
|
|
|
if (s->extra_flags & EXTRA_SORT_FIRST)
|
|
sort_mono(s, &info);
|
|
|
|
if (s->extra_flags & EXTRA_TRY_DELTAS) {
|
|
delta_mono(s, &info);
|
|
|
|
if ((s->extra_flags & EXTRA_ADJUST_DELTAS) && s->decorr_passes[0].value)
|
|
s->delta_decay = (float)((s->delta_decay * 2.0 + s->decorr_passes[0].delta) / 3.0);
|
|
else
|
|
s->delta_decay = 2.0;
|
|
}
|
|
|
|
if (s->extra_flags & EXTRA_SORT_LAST)
|
|
sort_mono(s, &info);
|
|
|
|
if (do_samples)
|
|
memcpy(samples, s->sampleptrs[info.nterms + 1][0], s->block_samples * 4);
|
|
|
|
for (i = 0; i < info.nterms; i++)
|
|
if (!s->decorr_passes[i].value)
|
|
break;
|
|
|
|
s->num_terms = i;
|
|
}
|
|
|
|
static void scan_word(WavPackEncodeContext *s, WvChannel *c,
|
|
int32_t *samples, int nb_samples, int dir)
|
|
{
|
|
if (dir < 0)
|
|
samples += nb_samples - 1;
|
|
|
|
while (nb_samples--) {
|
|
uint32_t low, value = labs(samples[0]);
|
|
|
|
if (value < GET_MED(0)) {
|
|
DEC_MED(0);
|
|
} else {
|
|
low = GET_MED(0);
|
|
INC_MED(0);
|
|
|
|
if (value - low < GET_MED(1)) {
|
|
DEC_MED(1);
|
|
} else {
|
|
low += GET_MED(1);
|
|
INC_MED(1);
|
|
|
|
if (value - low < GET_MED(2)) {
|
|
DEC_MED(2);
|
|
} else {
|
|
INC_MED(2);
|
|
}
|
|
}
|
|
}
|
|
samples += dir;
|
|
}
|
|
}
|
|
|
|
static int wv_mono(WavPackEncodeContext *s, int32_t *samples,
|
|
int no_history, int do_samples)
|
|
{
|
|
struct Decorr temp_decorr_pass, save_decorr_passes[MAX_TERMS] = {{0}};
|
|
int nb_samples = s->block_samples;
|
|
int buf_size = sizeof(int32_t) * nb_samples;
|
|
uint32_t best_size = UINT32_MAX, size;
|
|
int log_limit, pi, i, ret;
|
|
|
|
for (i = 0; i < nb_samples; i++)
|
|
if (samples[i])
|
|
break;
|
|
|
|
if (i == nb_samples) {
|
|
CLEAR(s->decorr_passes);
|
|
CLEAR(s->w);
|
|
s->num_terms = 0;
|
|
return 0;
|
|
}
|
|
|
|
log_limit = (((s->flags & MAG_MASK) >> MAG_LSB) + 4) * 256;
|
|
log_limit = FFMIN(6912, log_limit);
|
|
|
|
if ((ret = allocate_buffers(s)) < 0)
|
|
return ret;
|
|
|
|
if (no_history || s->num_passes >= 7)
|
|
s->best_decorr = s->mask_decorr = 0;
|
|
|
|
for (pi = 0; pi < s->num_passes;) {
|
|
const WavPackDecorrSpec *wpds;
|
|
int nterms, c, j;
|
|
|
|
if (!pi) {
|
|
c = s->best_decorr;
|
|
} else {
|
|
if (s->mask_decorr == 0)
|
|
c = 0;
|
|
else
|
|
c = (s->best_decorr & (s->mask_decorr - 1)) | s->mask_decorr;
|
|
|
|
if (c == s->best_decorr) {
|
|
s->mask_decorr = s->mask_decorr ? ((s->mask_decorr << 1) & (s->num_decorrs - 1)) : 1;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
wpds = &s->decorr_specs[c];
|
|
nterms = decorr_filter_nterms[s->decorr_filter];
|
|
|
|
while (1) {
|
|
memcpy(s->temp_buffer[0][0], samples, buf_size);
|
|
CLEAR(save_decorr_passes);
|
|
|
|
for (j = 0; j < nterms; j++) {
|
|
CLEAR(temp_decorr_pass);
|
|
temp_decorr_pass.delta = wpds->delta;
|
|
temp_decorr_pass.value = wpds->terms[j];
|
|
|
|
if (temp_decorr_pass.value < 0)
|
|
temp_decorr_pass.value = 1;
|
|
|
|
decorr_mono(s->temp_buffer[j&1][0], s->temp_buffer[~j&1][0],
|
|
FFMIN(nb_samples, 2048), &temp_decorr_pass, -1);
|
|
|
|
if (j) {
|
|
CLEAR(temp_decorr_pass.samplesA);
|
|
} else {
|
|
reverse_mono_decorr(&temp_decorr_pass);
|
|
}
|
|
|
|
memcpy(save_decorr_passes + j, &temp_decorr_pass, sizeof(struct Decorr));
|
|
decorr_mono(s->temp_buffer[j&1][0], s->temp_buffer[~j&1][0],
|
|
nb_samples, &temp_decorr_pass, 1);
|
|
}
|
|
|
|
size = log2mono(s->temp_buffer[j&1][0], nb_samples, log_limit);
|
|
if (size != UINT32_MAX || !nterms)
|
|
break;
|
|
nterms >>= 1;
|
|
}
|
|
|
|
if (size < best_size) {
|
|
memcpy(s->best_buffer[0], s->temp_buffer[j&1][0], buf_size);
|
|
memcpy(s->decorr_passes, save_decorr_passes, sizeof(struct Decorr) * MAX_TERMS);
|
|
s->num_terms = nterms;
|
|
s->best_decorr = c;
|
|
best_size = size;
|
|
}
|
|
|
|
if (pi++)
|
|
s->mask_decorr = s->mask_decorr ? ((s->mask_decorr << 1) & (s->num_decorrs - 1)) : 1;
|
|
}
|
|
|
|
if (s->extra_flags)
|
|
analyze_mono(s, samples, do_samples);
|
|
else if (do_samples)
|
|
memcpy(samples, s->best_buffer[0], buf_size);
|
|
|
|
if (no_history || s->extra_flags) {
|
|
CLEAR(s->w);
|
|
scan_word(s, &s->w.c[0], s->best_buffer[0], nb_samples, -1);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void decorr_stereo(int32_t *in_left, int32_t *in_right,
|
|
int32_t *out_left, int32_t *out_right,
|
|
int nb_samples, struct Decorr *dpp, int dir)
|
|
{
|
|
int m = 0, i;
|
|
|
|
dpp->sumA = dpp->sumB = 0;
|
|
|
|
if (dir < 0) {
|
|
out_left += nb_samples - 1;
|
|
out_right += nb_samples - 1;
|
|
in_left += nb_samples - 1;
|
|
in_right += nb_samples - 1;
|
|
}
|
|
|
|
dpp->weightA = restore_weight(store_weight(dpp->weightA));
|
|
dpp->weightB = restore_weight(store_weight(dpp->weightB));
|
|
|
|
for (i = 0; i < MAX_TERM; i++) {
|
|
dpp->samplesA[i] = wp_exp2(log2s(dpp->samplesA[i]));
|
|
dpp->samplesB[i] = wp_exp2(log2s(dpp->samplesB[i]));
|
|
}
|
|
|
|
switch (dpp->value) {
|
|
case 2:
|
|
while (nb_samples--) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = dpp->samplesA[0];
|
|
dpp->samplesA[0] = dpp->samplesA[1];
|
|
out_left[0] = tmp = (dpp->samplesA[1] = in_left[0]) - APPLY_WEIGHT(dpp->weightA, sam);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
|
|
dpp->sumA += dpp->weightA;
|
|
|
|
sam = dpp->samplesB[0];
|
|
dpp->samplesB[0] = dpp->samplesB[1];
|
|
out_right[0] = tmp = (dpp->samplesB[1] = in_right[0]) - APPLY_WEIGHT(dpp->weightB, sam);
|
|
UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
|
|
dpp->sumB += dpp->weightB;
|
|
|
|
in_left += dir;
|
|
out_left += dir;
|
|
in_right += dir;
|
|
out_right += dir;
|
|
}
|
|
break;
|
|
case 17:
|
|
while (nb_samples--) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = 2 * dpp->samplesA[0] - dpp->samplesA[1];
|
|
dpp->samplesA[1] = dpp->samplesA[0];
|
|
out_left[0] = tmp = (dpp->samplesA[0] = in_left[0]) - APPLY_WEIGHT(dpp->weightA, sam);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
|
|
dpp->sumA += dpp->weightA;
|
|
|
|
sam = 2 * dpp->samplesB[0] - dpp->samplesB[1];
|
|
dpp->samplesB[1] = dpp->samplesB[0];
|
|
out_right[0] = tmp = (dpp->samplesB[0] = in_right[0]) - APPLY_WEIGHT (dpp->weightB, sam);
|
|
UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
|
|
dpp->sumB += dpp->weightB;
|
|
|
|
in_left += dir;
|
|
out_left += dir;
|
|
in_right += dir;
|
|
out_right += dir;
|
|
}
|
|
break;
|
|
case 18:
|
|
while (nb_samples--) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = dpp->samplesA[0] + ((dpp->samplesA[0] - dpp->samplesA[1]) >> 1);
|
|
dpp->samplesA[1] = dpp->samplesA[0];
|
|
out_left[0] = tmp = (dpp->samplesA[0] = in_left[0]) - APPLY_WEIGHT(dpp->weightA, sam);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
|
|
dpp->sumA += dpp->weightA;
|
|
|
|
sam = dpp->samplesB[0] + ((dpp->samplesB[0] - dpp->samplesB[1]) >> 1);
|
|
dpp->samplesB[1] = dpp->samplesB[0];
|
|
out_right[0] = tmp = (dpp->samplesB[0] = in_right[0]) - APPLY_WEIGHT(dpp->weightB, sam);
|
|
UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
|
|
dpp->sumB += dpp->weightB;
|
|
|
|
in_left += dir;
|
|
out_left += dir;
|
|
in_right += dir;
|
|
out_right += dir;
|
|
}
|
|
break;
|
|
default: {
|
|
int k = dpp->value & (MAX_TERM - 1);
|
|
|
|
while (nb_samples--) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = dpp->samplesA[m];
|
|
out_left[0] = tmp = (dpp->samplesA[k] = in_left[0]) - APPLY_WEIGHT(dpp->weightA, sam);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
|
|
dpp->sumA += dpp->weightA;
|
|
|
|
sam = dpp->samplesB[m];
|
|
out_right[0] = tmp = (dpp->samplesB[k] = in_right[0]) - APPLY_WEIGHT(dpp->weightB, sam);
|
|
UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
|
|
dpp->sumB += dpp->weightB;
|
|
|
|
in_left += dir;
|
|
out_left += dir;
|
|
in_right += dir;
|
|
out_right += dir;
|
|
m = (m + 1) & (MAX_TERM - 1);
|
|
k = (k + 1) & (MAX_TERM - 1);
|
|
}
|
|
|
|
if (m) {
|
|
int32_t temp_A[MAX_TERM], temp_B[MAX_TERM];
|
|
int k;
|
|
|
|
memcpy(temp_A, dpp->samplesA, sizeof(dpp->samplesA));
|
|
memcpy(temp_B, dpp->samplesB, sizeof(dpp->samplesB));
|
|
|
|
for (k = 0; k < MAX_TERM; k++) {
|
|
dpp->samplesA[k] = temp_A[m];
|
|
dpp->samplesB[k] = temp_B[m];
|
|
m = (m + 1) & (MAX_TERM - 1);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case -1:
|
|
while (nb_samples--) {
|
|
int32_t sam_A, sam_B, tmp;
|
|
|
|
sam_A = dpp->samplesA[0];
|
|
out_left[0] = tmp = (sam_B = in_left[0]) - APPLY_WEIGHT(dpp->weightA, sam_A);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
|
|
dpp->sumA += dpp->weightA;
|
|
|
|
out_right[0] = tmp = (dpp->samplesA[0] = in_right[0]) - APPLY_WEIGHT(dpp->weightB, sam_B);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
|
|
dpp->sumB += dpp->weightB;
|
|
|
|
in_left += dir;
|
|
out_left += dir;
|
|
in_right += dir;
|
|
out_right += dir;
|
|
}
|
|
break;
|
|
case -2:
|
|
while (nb_samples--) {
|
|
int32_t sam_A, sam_B, tmp;
|
|
|
|
sam_B = dpp->samplesB[0];
|
|
out_right[0] = tmp = (sam_A = in_right[0]) - APPLY_WEIGHT(dpp->weightB, sam_B);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
|
|
dpp->sumB += dpp->weightB;
|
|
|
|
out_left[0] = tmp = (dpp->samplesB[0] = in_left[0]) - APPLY_WEIGHT(dpp->weightA, sam_A);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
|
|
dpp->sumA += dpp->weightA;
|
|
|
|
in_left += dir;
|
|
out_left += dir;
|
|
in_right += dir;
|
|
out_right += dir;
|
|
}
|
|
break;
|
|
case -3:
|
|
while (nb_samples--) {
|
|
int32_t sam_A, sam_B, tmp;
|
|
|
|
sam_A = dpp->samplesA[0];
|
|
sam_B = dpp->samplesB[0];
|
|
|
|
dpp->samplesA[0] = tmp = in_right[0];
|
|
out_right[0] = tmp -= APPLY_WEIGHT(dpp->weightB, sam_B);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
|
|
dpp->sumB += dpp->weightB;
|
|
|
|
dpp->samplesB[0] = tmp = in_left[0];
|
|
out_left[0] = tmp -= APPLY_WEIGHT(dpp->weightA, sam_A);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
|
|
dpp->sumA += dpp->weightA;
|
|
|
|
in_left += dir;
|
|
out_left += dir;
|
|
in_right += dir;
|
|
out_right += dir;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void reverse_decorr(struct Decorr *dpp)
|
|
{
|
|
if (dpp->value > MAX_TERM) {
|
|
int32_t sam_A, sam_B;
|
|
|
|
if (dpp->value & 1) {
|
|
sam_A = 2 * dpp->samplesA[0] - dpp->samplesA[1];
|
|
sam_B = 2 * dpp->samplesB[0] - dpp->samplesB[1];
|
|
} else {
|
|
sam_A = (3 * dpp->samplesA[0] - dpp->samplesA[1]) >> 1;
|
|
sam_B = (3 * dpp->samplesB[0] - dpp->samplesB[1]) >> 1;
|
|
}
|
|
|
|
dpp->samplesA[1] = dpp->samplesA[0];
|
|
dpp->samplesB[1] = dpp->samplesB[0];
|
|
dpp->samplesA[0] = sam_A;
|
|
dpp->samplesB[0] = sam_B;
|
|
|
|
if (dpp->value & 1) {
|
|
sam_A = 2 * dpp->samplesA[0] - dpp->samplesA[1];
|
|
sam_B = 2 * dpp->samplesB[0] - dpp->samplesB[1];
|
|
} else {
|
|
sam_A = (3 * dpp->samplesA[0] - dpp->samplesA[1]) >> 1;
|
|
sam_B = (3 * dpp->samplesB[0] - dpp->samplesB[1]) >> 1;
|
|
}
|
|
|
|
dpp->samplesA[1] = sam_A;
|
|
dpp->samplesB[1] = sam_B;
|
|
} else if (dpp->value > 1) {
|
|
int i, j, k;
|
|
|
|
for (i = 0, j = dpp->value - 1, k = 0; k < dpp->value / 2; i++, j--, k++) {
|
|
i &= (MAX_TERM - 1);
|
|
j &= (MAX_TERM - 1);
|
|
dpp->samplesA[i] ^= dpp->samplesA[j];
|
|
dpp->samplesA[j] ^= dpp->samplesA[i];
|
|
dpp->samplesA[i] ^= dpp->samplesA[j];
|
|
dpp->samplesB[i] ^= dpp->samplesB[j];
|
|
dpp->samplesB[j] ^= dpp->samplesB[i];
|
|
dpp->samplesB[i] ^= dpp->samplesB[j];
|
|
}
|
|
}
|
|
}
|
|
|
|
static void decorr_stereo_quick(int32_t *in_left, int32_t *in_right,
|
|
int32_t *out_left, int32_t *out_right,
|
|
int nb_samples, struct Decorr *dpp)
|
|
{
|
|
int m = 0, i;
|
|
|
|
dpp->weightA = restore_weight(store_weight(dpp->weightA));
|
|
dpp->weightB = restore_weight(store_weight(dpp->weightB));
|
|
|
|
for (i = 0; i < MAX_TERM; i++) {
|
|
dpp->samplesA[i] = wp_exp2(log2s(dpp->samplesA[i]));
|
|
dpp->samplesB[i] = wp_exp2(log2s(dpp->samplesB[i]));
|
|
}
|
|
|
|
switch (dpp->value) {
|
|
case 2:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = dpp->samplesA[0];
|
|
dpp->samplesA[0] = dpp->samplesA[1];
|
|
out_left[i] = tmp = (dpp->samplesA[1] = in_left[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
|
|
|
|
sam = dpp->samplesB[0];
|
|
dpp->samplesB[0] = dpp->samplesB[1];
|
|
out_right[i] = tmp = (dpp->samplesB[1] = in_right[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
|
|
UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
|
|
}
|
|
break;
|
|
case 17:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = 2 * dpp->samplesA[0] - dpp->samplesA[1];
|
|
dpp->samplesA[1] = dpp->samplesA[0];
|
|
out_left[i] = tmp = (dpp->samplesA[0] = in_left[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
|
|
|
|
sam = 2 * dpp->samplesB[0] - dpp->samplesB[1];
|
|
dpp->samplesB[1] = dpp->samplesB[0];
|
|
out_right[i] = tmp = (dpp->samplesB[0] = in_right[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
|
|
UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
|
|
}
|
|
break;
|
|
case 18:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = dpp->samplesA[0] + ((dpp->samplesA[0] - dpp->samplesA[1]) >> 1);
|
|
dpp->samplesA[1] = dpp->samplesA[0];
|
|
out_left[i] = tmp = (dpp->samplesA[0] = in_left[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
|
|
|
|
sam = dpp->samplesB[0] + ((dpp->samplesB[0] - dpp->samplesB[1]) >> 1);
|
|
dpp->samplesB[1] = dpp->samplesB[0];
|
|
out_right[i] = tmp = (dpp->samplesB[0] = in_right[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
|
|
UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
|
|
}
|
|
break;
|
|
default: {
|
|
int k = dpp->value & (MAX_TERM - 1);
|
|
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = dpp->samplesA[m];
|
|
out_left[i] = tmp = (dpp->samplesA[k] = in_left[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
|
|
|
|
sam = dpp->samplesB[m];
|
|
out_right[i] = tmp = (dpp->samplesB[k] = in_right[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
|
|
UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
|
|
|
|
m = (m + 1) & (MAX_TERM - 1);
|
|
k = (k + 1) & (MAX_TERM - 1);
|
|
}
|
|
|
|
if (m) {
|
|
int32_t temp_A[MAX_TERM], temp_B[MAX_TERM];
|
|
int k;
|
|
|
|
memcpy(temp_A, dpp->samplesA, sizeof(dpp->samplesA));
|
|
memcpy(temp_B, dpp->samplesB, sizeof(dpp->samplesB));
|
|
|
|
for (k = 0; k < MAX_TERM; k++) {
|
|
dpp->samplesA[k] = temp_A[m];
|
|
dpp->samplesB[k] = temp_B[m];
|
|
m = (m + 1) & (MAX_TERM - 1);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case -1:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam_A, sam_B, tmp;
|
|
|
|
sam_A = dpp->samplesA[0];
|
|
out_left[i] = tmp = (sam_B = in_left[i]) - APPLY_WEIGHT_I(dpp->weightA, sam_A);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
|
|
|
|
out_right[i] = tmp = (dpp->samplesA[0] = in_right[i]) - APPLY_WEIGHT_I(dpp->weightB, sam_B);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
|
|
}
|
|
break;
|
|
case -2:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam_A, sam_B, tmp;
|
|
|
|
sam_B = dpp->samplesB[0];
|
|
out_right[i] = tmp = (sam_A = in_right[i]) - APPLY_WEIGHT_I(dpp->weightB, sam_B);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
|
|
|
|
out_left[i] = tmp = (dpp->samplesB[0] = in_left[i]) - APPLY_WEIGHT_I(dpp->weightA, sam_A);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
|
|
}
|
|
break;
|
|
case -3:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam_A, sam_B, tmp;
|
|
|
|
sam_A = dpp->samplesA[0];
|
|
sam_B = dpp->samplesB[0];
|
|
|
|
dpp->samplesA[0] = tmp = in_right[i];
|
|
out_right[i] = tmp -= APPLY_WEIGHT_I(dpp->weightB, sam_B);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
|
|
|
|
dpp->samplesB[0] = tmp = in_left[i];
|
|
out_left[i] = tmp -= APPLY_WEIGHT_I(dpp->weightA, sam_A);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void decorr_stereo_buffer(WavPackExtraInfo *info,
|
|
int32_t *in_left, int32_t *in_right,
|
|
int32_t *out_left, int32_t *out_right,
|
|
int nb_samples, int tindex)
|
|
{
|
|
struct Decorr dp = {0}, *dppi = info->dps + tindex;
|
|
int delta = dppi->delta, pre_delta;
|
|
int term = dppi->value;
|
|
|
|
if (delta == 7)
|
|
pre_delta = 7;
|
|
else if (delta < 2)
|
|
pre_delta = 3;
|
|
else
|
|
pre_delta = delta + 1;
|
|
|
|
dp.value = term;
|
|
dp.delta = pre_delta;
|
|
decorr_stereo(in_left, in_right, out_left, out_right,
|
|
FFMIN(2048, nb_samples), &dp, -1);
|
|
dp.delta = delta;
|
|
|
|
if (tindex == 0) {
|
|
reverse_decorr(&dp);
|
|
} else {
|
|
CLEAR(dp.samplesA);
|
|
CLEAR(dp.samplesB);
|
|
}
|
|
|
|
memcpy(dppi->samplesA, dp.samplesA, sizeof(dp.samplesA));
|
|
memcpy(dppi->samplesB, dp.samplesB, sizeof(dp.samplesB));
|
|
dppi->weightA = dp.weightA;
|
|
dppi->weightB = dp.weightB;
|
|
|
|
if (delta == 0) {
|
|
dp.delta = 1;
|
|
decorr_stereo(in_left, in_right, out_left, out_right, nb_samples, &dp, 1);
|
|
dp.delta = 0;
|
|
memcpy(dp.samplesA, dppi->samplesA, sizeof(dp.samplesA));
|
|
memcpy(dp.samplesB, dppi->samplesB, sizeof(dp.samplesB));
|
|
dppi->weightA = dp.weightA = dp.sumA / nb_samples;
|
|
dppi->weightB = dp.weightB = dp.sumB / nb_samples;
|
|
}
|
|
|
|
if (info->gt16bit)
|
|
decorr_stereo(in_left, in_right, out_left, out_right,
|
|
nb_samples, &dp, 1);
|
|
else
|
|
decorr_stereo_quick(in_left, in_right, out_left, out_right,
|
|
nb_samples, &dp);
|
|
}
|
|
|
|
static void sort_stereo(WavPackEncodeContext *s, WavPackExtraInfo *info)
|
|
{
|
|
int reversed = 1;
|
|
uint32_t bits;
|
|
|
|
while (reversed) {
|
|
int ri, i;
|
|
|
|
memcpy(info->dps, s->decorr_passes, sizeof(s->decorr_passes));
|
|
reversed = 0;
|
|
|
|
for (ri = 0; ri < info->nterms && s->decorr_passes[ri].value; ri++) {
|
|
|
|
if (ri + 1 >= info->nterms || !s->decorr_passes[ri+1].value)
|
|
break;
|
|
|
|
if (s->decorr_passes[ri].value == s->decorr_passes[ri+1].value) {
|
|
decorr_stereo_buffer(info,
|
|
s->sampleptrs[ri ][0], s->sampleptrs[ri ][1],
|
|
s->sampleptrs[ri+1][0], s->sampleptrs[ri+1][1],
|
|
s->block_samples, ri);
|
|
continue;
|
|
}
|
|
|
|
info->dps[ri ] = s->decorr_passes[ri+1];
|
|
info->dps[ri+1] = s->decorr_passes[ri ];
|
|
|
|
for (i = ri; i < info->nterms && s->decorr_passes[i].value; i++)
|
|
decorr_stereo_buffer(info,
|
|
s->sampleptrs[i ][0], s->sampleptrs[i ][1],
|
|
s->sampleptrs[i+1][0], s->sampleptrs[i+1][1],
|
|
s->block_samples, i);
|
|
|
|
bits = log2stereo(s->sampleptrs[i][0], s->sampleptrs[i][1],
|
|
s->block_samples, info->log_limit);
|
|
|
|
if (bits < info->best_bits) {
|
|
reversed = 1;
|
|
info->best_bits = bits;
|
|
CLEAR(s->decorr_passes);
|
|
memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * i);
|
|
memcpy(s->sampleptrs[info->nterms + 1][0],
|
|
s->sampleptrs[i][0], s->block_samples * 4);
|
|
memcpy(s->sampleptrs[info->nterms + 1][1],
|
|
s->sampleptrs[i][1], s->block_samples * 4);
|
|
} else {
|
|
info->dps[ri ] = s->decorr_passes[ri ];
|
|
info->dps[ri+1] = s->decorr_passes[ri+1];
|
|
decorr_stereo_buffer(info,
|
|
s->sampleptrs[ri ][0], s->sampleptrs[ri ][1],
|
|
s->sampleptrs[ri+1][0], s->sampleptrs[ri+1][1],
|
|
s->block_samples, ri);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void delta_stereo(WavPackEncodeContext *s, WavPackExtraInfo *info)
|
|
{
|
|
int lower = 0, delta, d, i;
|
|
uint32_t bits;
|
|
|
|
if (!s->decorr_passes[0].value)
|
|
return;
|
|
delta = s->decorr_passes[0].delta;
|
|
|
|
for (d = delta - 1; d >= 0; d--) {
|
|
for (i = 0; i < info->nterms && s->decorr_passes[i].value; i++) {
|
|
info->dps[i].value = s->decorr_passes[i].value;
|
|
info->dps[i].delta = d;
|
|
decorr_stereo_buffer(info,
|
|
s->sampleptrs[i ][0], s->sampleptrs[i ][1],
|
|
s->sampleptrs[i+1][0], s->sampleptrs[i+1][1],
|
|
s->block_samples, i);
|
|
}
|
|
|
|
bits = log2stereo(s->sampleptrs[i][0], s->sampleptrs[i][1],
|
|
s->block_samples, info->log_limit);
|
|
if (bits >= info->best_bits)
|
|
break;
|
|
lower = 1;
|
|
info->best_bits = bits;
|
|
CLEAR(s->decorr_passes);
|
|
memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * i);
|
|
memcpy(s->sampleptrs[info->nterms + 1][0], s->sampleptrs[i][0],
|
|
s->block_samples * 4);
|
|
memcpy(s->sampleptrs[info->nterms + 1][1], s->sampleptrs[i][1],
|
|
s->block_samples * 4);
|
|
}
|
|
|
|
for (d = delta + 1; !lower && d <= 7; d++) {
|
|
for (i = 0; i < info->nterms && s->decorr_passes[i].value; i++) {
|
|
info->dps[i].value = s->decorr_passes[i].value;
|
|
info->dps[i].delta = d;
|
|
decorr_stereo_buffer(info,
|
|
s->sampleptrs[i ][0], s->sampleptrs[i ][1],
|
|
s->sampleptrs[i+1][0], s->sampleptrs[i+1][1],
|
|
s->block_samples, i);
|
|
}
|
|
|
|
bits = log2stereo(s->sampleptrs[i][0], s->sampleptrs[i][1],
|
|
s->block_samples, info->log_limit);
|
|
|
|
if (bits < info->best_bits) {
|
|
info->best_bits = bits;
|
|
CLEAR(s->decorr_passes);
|
|
memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * i);
|
|
memcpy(s->sampleptrs[info->nterms + 1][0],
|
|
s->sampleptrs[i][0], s->block_samples * 4);
|
|
memcpy(s->sampleptrs[info->nterms + 1][1],
|
|
s->sampleptrs[i][1], s->block_samples * 4);
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void recurse_stereo(WavPackEncodeContext *s, WavPackExtraInfo *info,
|
|
int depth, int delta, uint32_t input_bits)
|
|
{
|
|
int term, branches = s->num_branches - depth;
|
|
int32_t *in_left, *in_right, *out_left, *out_right;
|
|
uint32_t term_bits[22], bits;
|
|
|
|
if (branches < 1 || depth + 1 == info->nterms)
|
|
branches = 1;
|
|
|
|
CLEAR(term_bits);
|
|
in_left = s->sampleptrs[depth ][0];
|
|
in_right = s->sampleptrs[depth ][1];
|
|
out_left = s->sampleptrs[depth + 1][0];
|
|
out_right = s->sampleptrs[depth + 1][1];
|
|
|
|
for (term = -3; term <= 18; term++) {
|
|
if (!term || (term > 8 && term < 17))
|
|
continue;
|
|
|
|
if (term == 17 && branches == 1 && depth + 1 < info->nterms)
|
|
continue;
|
|
|
|
if (term == -1 || term == -2)
|
|
if (!(s->flags & WV_CROSS_DECORR))
|
|
continue;
|
|
|
|
if (!s->extra_flags && (term > 4 && term < 17))
|
|
continue;
|
|
|
|
info->dps[depth].value = term;
|
|
info->dps[depth].delta = delta;
|
|
decorr_stereo_buffer(info, in_left, in_right, out_left, out_right,
|
|
s->block_samples, depth);
|
|
bits = log2stereo(out_left, out_right, s->block_samples, info->log_limit);
|
|
|
|
if (bits < info->best_bits) {
|
|
info->best_bits = bits;
|
|
CLEAR(s->decorr_passes);
|
|
memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * (depth + 1));
|
|
memcpy(s->sampleptrs[info->nterms + 1][0], s->sampleptrs[depth + 1][0],
|
|
s->block_samples * 4);
|
|
memcpy(s->sampleptrs[info->nterms + 1][1], s->sampleptrs[depth + 1][1],
|
|
s->block_samples * 4);
|
|
}
|
|
|
|
term_bits[term + 3] = bits;
|
|
}
|
|
|
|
while (depth + 1 < info->nterms && branches--) {
|
|
uint32_t local_best_bits = input_bits;
|
|
int best_term = 0, i;
|
|
|
|
for (i = 0; i < 22; i++)
|
|
if (term_bits[i] && term_bits[i] < local_best_bits) {
|
|
local_best_bits = term_bits[i];
|
|
best_term = i - 3;
|
|
}
|
|
|
|
if (!best_term)
|
|
break;
|
|
|
|
term_bits[best_term + 3] = 0;
|
|
|
|
info->dps[depth].value = best_term;
|
|
info->dps[depth].delta = delta;
|
|
decorr_stereo_buffer(info, in_left, in_right, out_left, out_right,
|
|
s->block_samples, depth);
|
|
|
|
recurse_stereo(s, info, depth + 1, delta, local_best_bits);
|
|
}
|
|
}
|
|
|
|
static void analyze_stereo(WavPackEncodeContext *s,
|
|
int32_t *in_left, int32_t *in_right,
|
|
int do_samples)
|
|
{
|
|
WavPackExtraInfo info;
|
|
int i;
|
|
|
|
info.gt16bit = ((s->flags & MAG_MASK) >> MAG_LSB) >= 16;
|
|
|
|
info.log_limit = (((s->flags & MAG_MASK) >> MAG_LSB) + 4) * 256;
|
|
info.log_limit = FFMIN(6912, info.log_limit);
|
|
|
|
info.nterms = s->num_terms;
|
|
|
|
if (allocate_buffers2(s, s->num_terms))
|
|
return;
|
|
|
|
memcpy(info.dps, s->decorr_passes, sizeof(info.dps));
|
|
memcpy(s->sampleptrs[0][0], in_left, s->block_samples * 4);
|
|
memcpy(s->sampleptrs[0][1], in_right, s->block_samples * 4);
|
|
|
|
for (i = 0; i < info.nterms && info.dps[i].value; i++)
|
|
if (info.gt16bit)
|
|
decorr_stereo(s->sampleptrs[i ][0], s->sampleptrs[i ][1],
|
|
s->sampleptrs[i + 1][0], s->sampleptrs[i + 1][1],
|
|
s->block_samples, info.dps + i, 1);
|
|
else
|
|
decorr_stereo_quick(s->sampleptrs[i ][0], s->sampleptrs[i ][1],
|
|
s->sampleptrs[i + 1][0], s->sampleptrs[i + 1][1],
|
|
s->block_samples, info.dps + i);
|
|
|
|
info.best_bits = log2stereo(s->sampleptrs[info.nterms][0], s->sampleptrs[info.nterms][1],
|
|
s->block_samples, 0);
|
|
|
|
memcpy(s->sampleptrs[info.nterms + 1][0], s->sampleptrs[i][0], s->block_samples * 4);
|
|
memcpy(s->sampleptrs[info.nterms + 1][1], s->sampleptrs[i][1], s->block_samples * 4);
|
|
|
|
if (s->extra_flags & EXTRA_BRANCHES)
|
|
recurse_stereo(s, &info, 0, (int) floor(s->delta_decay + 0.5),
|
|
log2stereo(s->sampleptrs[0][0], s->sampleptrs[0][1],
|
|
s->block_samples, 0));
|
|
|
|
if (s->extra_flags & EXTRA_SORT_FIRST)
|
|
sort_stereo(s, &info);
|
|
|
|
if (s->extra_flags & EXTRA_TRY_DELTAS) {
|
|
delta_stereo(s, &info);
|
|
|
|
if ((s->extra_flags & EXTRA_ADJUST_DELTAS) && s->decorr_passes[0].value)
|
|
s->delta_decay = (float)((s->delta_decay * 2.0 + s->decorr_passes[0].delta) / 3.0);
|
|
else
|
|
s->delta_decay = 2.0;
|
|
}
|
|
|
|
if (s->extra_flags & EXTRA_SORT_LAST)
|
|
sort_stereo(s, &info);
|
|
|
|
if (do_samples) {
|
|
memcpy(in_left, s->sampleptrs[info.nterms + 1][0], s->block_samples * 4);
|
|
memcpy(in_right, s->sampleptrs[info.nterms + 1][1], s->block_samples * 4);
|
|
}
|
|
|
|
for (i = 0; i < info.nterms; i++)
|
|
if (!s->decorr_passes[i].value)
|
|
break;
|
|
|
|
s->num_terms = i;
|
|
}
|
|
|
|
static int wv_stereo(WavPackEncodeContext *s,
|
|
int32_t *samples_l, int32_t *samples_r,
|
|
int no_history, int do_samples)
|
|
{
|
|
struct Decorr temp_decorr_pass, save_decorr_passes[MAX_TERMS] = {{0}};
|
|
int nb_samples = s->block_samples, ret;
|
|
int buf_size = sizeof(int32_t) * nb_samples;
|
|
int log_limit, force_js = 0, force_ts = 0, got_js = 0, pi, i;
|
|
uint32_t best_size = UINT32_MAX, size;
|
|
|
|
for (i = 0; i < nb_samples; i++)
|
|
if (samples_l[i] || samples_r[i])
|
|
break;
|
|
|
|
if (i == nb_samples) {
|
|
s->flags &= ~((uint32_t) WV_JOINT_STEREO);
|
|
CLEAR(s->decorr_passes);
|
|
CLEAR(s->w);
|
|
s->num_terms = 0;
|
|
return 0;
|
|
}
|
|
|
|
log_limit = (((s->flags & MAG_MASK) >> MAG_LSB) + 4) * 256;
|
|
log_limit = FFMIN(6912, log_limit);
|
|
|
|
if (s->joint != -1) {
|
|
force_js = s->joint;
|
|
force_ts = !s->joint;
|
|
}
|
|
|
|
if ((ret = allocate_buffers(s)) < 0)
|
|
return ret;
|
|
|
|
if (no_history || s->num_passes >= 7)
|
|
s->best_decorr = s->mask_decorr = 0;
|
|
|
|
for (pi = 0; pi < s->num_passes;) {
|
|
const WavPackDecorrSpec *wpds;
|
|
int nterms, c, j;
|
|
|
|
if (!pi)
|
|
c = s->best_decorr;
|
|
else {
|
|
if (s->mask_decorr == 0)
|
|
c = 0;
|
|
else
|
|
c = (s->best_decorr & (s->mask_decorr - 1)) | s->mask_decorr;
|
|
|
|
if (c == s->best_decorr) {
|
|
s->mask_decorr = s->mask_decorr ? ((s->mask_decorr << 1) & (s->num_decorrs - 1)) : 1;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
wpds = &s->decorr_specs[c];
|
|
nterms = decorr_filter_nterms[s->decorr_filter];
|
|
|
|
while (1) {
|
|
if (force_js || (wpds->joint_stereo && !force_ts)) {
|
|
if (!got_js) {
|
|
av_fast_padded_malloc(&s->js_left, &s->js_left_size, buf_size);
|
|
av_fast_padded_malloc(&s->js_right, &s->js_right_size, buf_size);
|
|
memcpy(s->js_left, samples_l, buf_size);
|
|
memcpy(s->js_right, samples_r, buf_size);
|
|
|
|
for (i = 0; i < nb_samples; i++)
|
|
s->js_right[i] += ((s->js_left[i] -= s->js_right[i]) >> 1);
|
|
got_js = 1;
|
|
}
|
|
|
|
memcpy(s->temp_buffer[0][0], s->js_left, buf_size);
|
|
memcpy(s->temp_buffer[0][1], s->js_right, buf_size);
|
|
} else {
|
|
memcpy(s->temp_buffer[0][0], samples_l, buf_size);
|
|
memcpy(s->temp_buffer[0][1], samples_r, buf_size);
|
|
}
|
|
|
|
CLEAR(save_decorr_passes);
|
|
|
|
for (j = 0; j < nterms; j++) {
|
|
CLEAR(temp_decorr_pass);
|
|
temp_decorr_pass.delta = wpds->delta;
|
|
temp_decorr_pass.value = wpds->terms[j];
|
|
|
|
if (temp_decorr_pass.value < 0 && !(s->flags & WV_CROSS_DECORR))
|
|
temp_decorr_pass.value = -3;
|
|
|
|
decorr_stereo(s->temp_buffer[ j&1][0], s->temp_buffer[ j&1][1],
|
|
s->temp_buffer[~j&1][0], s->temp_buffer[~j&1][1],
|
|
FFMIN(2048, nb_samples), &temp_decorr_pass, -1);
|
|
|
|
if (j) {
|
|
CLEAR(temp_decorr_pass.samplesA);
|
|
CLEAR(temp_decorr_pass.samplesB);
|
|
} else {
|
|
reverse_decorr(&temp_decorr_pass);
|
|
}
|
|
|
|
memcpy(save_decorr_passes + j, &temp_decorr_pass, sizeof(struct Decorr));
|
|
|
|
if (((s->flags & MAG_MASK) >> MAG_LSB) >= 16)
|
|
decorr_stereo(s->temp_buffer[ j&1][0], s->temp_buffer[ j&1][1],
|
|
s->temp_buffer[~j&1][0], s->temp_buffer[~j&1][1],
|
|
nb_samples, &temp_decorr_pass, 1);
|
|
else
|
|
decorr_stereo_quick(s->temp_buffer[ j&1][0], s->temp_buffer[ j&1][1],
|
|
s->temp_buffer[~j&1][0], s->temp_buffer[~j&1][1],
|
|
nb_samples, &temp_decorr_pass);
|
|
}
|
|
|
|
size = log2stereo(s->temp_buffer[j&1][0], s->temp_buffer[j&1][1],
|
|
nb_samples, log_limit);
|
|
if (size != UINT32_MAX || !nterms)
|
|
break;
|
|
nterms >>= 1;
|
|
}
|
|
|
|
if (size < best_size) {
|
|
memcpy(s->best_buffer[0], s->temp_buffer[j&1][0], buf_size);
|
|
memcpy(s->best_buffer[1], s->temp_buffer[j&1][1], buf_size);
|
|
memcpy(s->decorr_passes, save_decorr_passes, sizeof(struct Decorr) * MAX_TERMS);
|
|
s->num_terms = nterms;
|
|
s->best_decorr = c;
|
|
best_size = size;
|
|
}
|
|
|
|
if (pi++)
|
|
s->mask_decorr = s->mask_decorr ? ((s->mask_decorr << 1) & (s->num_decorrs - 1)) : 1;
|
|
}
|
|
|
|
if (force_js || (s->decorr_specs[s->best_decorr].joint_stereo && !force_ts))
|
|
s->flags |= WV_JOINT_STEREO;
|
|
else
|
|
s->flags &= ~((uint32_t) WV_JOINT_STEREO);
|
|
|
|
if (s->extra_flags) {
|
|
if (s->flags & WV_JOINT_STEREO) {
|
|
analyze_stereo(s, s->js_left, s->js_right, do_samples);
|
|
|
|
if (do_samples) {
|
|
memcpy(samples_l, s->js_left, buf_size);
|
|
memcpy(samples_r, s->js_right, buf_size);
|
|
}
|
|
} else
|
|
analyze_stereo(s, samples_l, samples_r, do_samples);
|
|
} else if (do_samples) {
|
|
memcpy(samples_l, s->best_buffer[0], buf_size);
|
|
memcpy(samples_r, s->best_buffer[1], buf_size);
|
|
}
|
|
|
|
if (s->extra_flags || no_history ||
|
|
s->joint_stereo != s->decorr_specs[s->best_decorr].joint_stereo) {
|
|
s->joint_stereo = s->decorr_specs[s->best_decorr].joint_stereo;
|
|
CLEAR(s->w);
|
|
scan_word(s, &s->w.c[0], s->best_buffer[0], nb_samples, -1);
|
|
scan_word(s, &s->w.c[1], s->best_buffer[1], nb_samples, -1);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void encode_flush(WavPackEncodeContext *s)
|
|
{
|
|
WavPackWords *w = &s->w;
|
|
PutBitContext *pb = &s->pb;
|
|
|
|
if (w->zeros_acc) {
|
|
int cbits = count_bits(w->zeros_acc);
|
|
|
|
do {
|
|
if (cbits > 31) {
|
|
put_bits(pb, 31, 0x7FFFFFFF);
|
|
cbits -= 31;
|
|
} else {
|
|
put_bits(pb, cbits, (1 << cbits) - 1);
|
|
cbits = 0;
|
|
}
|
|
} while (cbits);
|
|
|
|
put_bits(pb, 1, 0);
|
|
|
|
while (w->zeros_acc > 1) {
|
|
put_bits(pb, 1, w->zeros_acc & 1);
|
|
w->zeros_acc >>= 1;
|
|
}
|
|
|
|
w->zeros_acc = 0;
|
|
}
|
|
|
|
if (w->holding_one) {
|
|
if (w->holding_one >= 16) {
|
|
int cbits;
|
|
|
|
put_bits(pb, 16, (1 << 16) - 1);
|
|
put_bits(pb, 1, 0);
|
|
w->holding_one -= 16;
|
|
cbits = count_bits(w->holding_one);
|
|
|
|
do {
|
|
if (cbits > 31) {
|
|
put_bits(pb, 31, 0x7FFFFFFF);
|
|
cbits -= 31;
|
|
} else {
|
|
put_bits(pb, cbits, (1 << cbits) - 1);
|
|
cbits = 0;
|
|
}
|
|
} while (cbits);
|
|
|
|
put_bits(pb, 1, 0);
|
|
|
|
while (w->holding_one > 1) {
|
|
put_bits(pb, 1, w->holding_one & 1);
|
|
w->holding_one >>= 1;
|
|
}
|
|
|
|
w->holding_zero = 0;
|
|
} else {
|
|
put_bits(pb, w->holding_one, (1 << w->holding_one) - 1);
|
|
}
|
|
|
|
w->holding_one = 0;
|
|
}
|
|
|
|
if (w->holding_zero) {
|
|
put_bits(pb, 1, 0);
|
|
w->holding_zero = 0;
|
|
}
|
|
|
|
if (w->pend_count) {
|
|
put_bits(pb, w->pend_count, w->pend_data);
|
|
w->pend_data = w->pend_count = 0;
|
|
}
|
|
}
|
|
|
|
static void wavpack_encode_sample(WavPackEncodeContext *s, WvChannel *c, int32_t sample)
|
|
{
|
|
WavPackWords *w = &s->w;
|
|
uint32_t ones_count, low, high;
|
|
int sign = sample < 0;
|
|
|
|
if (s->w.c[0].median[0] < 2 && !s->w.holding_zero && s->w.c[1].median[0] < 2) {
|
|
if (w->zeros_acc) {
|
|
if (sample)
|
|
encode_flush(s);
|
|
else {
|
|
w->zeros_acc++;
|
|
return;
|
|
}
|
|
} else if (sample) {
|
|
put_bits(&s->pb, 1, 0);
|
|
} else {
|
|
CLEAR(s->w.c[0].median);
|
|
CLEAR(s->w.c[1].median);
|
|
w->zeros_acc = 1;
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (sign)
|
|
sample = ~sample;
|
|
|
|
if (sample < (int32_t) GET_MED(0)) {
|
|
ones_count = low = 0;
|
|
high = GET_MED(0) - 1;
|
|
DEC_MED(0);
|
|
} else {
|
|
low = GET_MED(0);
|
|
INC_MED(0);
|
|
|
|
if (sample - low < GET_MED(1)) {
|
|
ones_count = 1;
|
|
high = low + GET_MED(1) - 1;
|
|
DEC_MED(1);
|
|
} else {
|
|
low += GET_MED(1);
|
|
INC_MED(1);
|
|
|
|
if (sample - low < GET_MED(2)) {
|
|
ones_count = 2;
|
|
high = low + GET_MED(2) - 1;
|
|
DEC_MED(2);
|
|
} else {
|
|
ones_count = 2 + (sample - low) / GET_MED(2);
|
|
low += (ones_count - 2) * GET_MED(2);
|
|
high = low + GET_MED(2) - 1;
|
|
INC_MED(2);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (w->holding_zero) {
|
|
if (ones_count)
|
|
w->holding_one++;
|
|
|
|
encode_flush(s);
|
|
|
|
if (ones_count) {
|
|
w->holding_zero = 1;
|
|
ones_count--;
|
|
} else
|
|
w->holding_zero = 0;
|
|
} else
|
|
w->holding_zero = 1;
|
|
|
|
w->holding_one = ones_count * 2;
|
|
|
|
if (high != low) {
|
|
uint32_t maxcode = high - low, code = sample - low;
|
|
int bitcount = count_bits(maxcode);
|
|
uint32_t extras = (1 << bitcount) - maxcode - 1;
|
|
|
|
if (code < extras) {
|
|
w->pend_data |= code << w->pend_count;
|
|
w->pend_count += bitcount - 1;
|
|
} else {
|
|
w->pend_data |= ((code + extras) >> 1) << w->pend_count;
|
|
w->pend_count += bitcount - 1;
|
|
w->pend_data |= ((code + extras) & 1) << w->pend_count++;
|
|
}
|
|
}
|
|
|
|
w->pend_data |= ((int32_t) sign << w->pend_count++);
|
|
|
|
if (!w->holding_zero)
|
|
encode_flush(s);
|
|
}
|
|
|
|
static void pack_int32(WavPackEncodeContext *s,
|
|
int32_t *samples_l, int32_t *samples_r,
|
|
int nb_samples)
|
|
{
|
|
const int sent_bits = s->int32_sent_bits;
|
|
PutBitContext *pb = &s->pb;
|
|
int i, pre_shift;
|
|
|
|
pre_shift = s->int32_zeros + s->int32_ones + s->int32_dups;
|
|
|
|
if (!sent_bits)
|
|
return;
|
|
|
|
if (s->flags & WV_MONO_DATA) {
|
|
for (i = 0; i < nb_samples; i++) {
|
|
put_sbits(pb, sent_bits, samples_l[i] >> pre_shift);
|
|
}
|
|
} else {
|
|
for (i = 0; i < nb_samples; i++) {
|
|
put_sbits(pb, sent_bits, samples_l[i] >> pre_shift);
|
|
put_sbits(pb, sent_bits, samples_r[i] >> pre_shift);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void pack_float_sample(WavPackEncodeContext *s, int32_t *sample)
|
|
{
|
|
const int max_exp = s->float_max_exp;
|
|
PutBitContext *pb = &s->pb;
|
|
int32_t value, shift_count;
|
|
|
|
if (get_exponent(*sample) == 255) {
|
|
if (get_mantissa(*sample)) {
|
|
put_bits(pb, 1, 1);
|
|
put_bits(pb, 23, get_mantissa(*sample));
|
|
} else {
|
|
put_bits(pb, 1, 0);
|
|
}
|
|
|
|
value = 0x1000000;
|
|
shift_count = 0;
|
|
} else if (get_exponent(*sample)) {
|
|
shift_count = max_exp - get_exponent(*sample);
|
|
value = 0x800000 + get_mantissa(*sample);
|
|
} else {
|
|
shift_count = max_exp ? max_exp - 1 : 0;
|
|
value = get_mantissa(*sample);
|
|
}
|
|
|
|
if (shift_count < 25)
|
|
value >>= shift_count;
|
|
else
|
|
value = 0;
|
|
|
|
if (!value) {
|
|
if (s->float_flags & FLOAT_ZEROS_SENT) {
|
|
if (get_exponent(*sample) || get_mantissa(*sample)) {
|
|
put_bits(pb, 1, 1);
|
|
put_bits(pb, 23, get_mantissa(*sample));
|
|
|
|
if (max_exp >= 25)
|
|
put_bits(pb, 8, get_exponent(*sample));
|
|
|
|
put_bits(pb, 1, get_sign(*sample));
|
|
} else {
|
|
put_bits(pb, 1, 0);
|
|
|
|
if (s->float_flags & FLOAT_NEG_ZEROS)
|
|
put_bits(pb, 1, get_sign(*sample));
|
|
}
|
|
}
|
|
} else if (shift_count) {
|
|
if (s->float_flags & FLOAT_SHIFT_SENT) {
|
|
put_sbits(pb, shift_count, get_mantissa(*sample));
|
|
} else if (s->float_flags & FLOAT_SHIFT_SAME) {
|
|
put_bits(pb, 1, get_mantissa(*sample) & 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void pack_float(WavPackEncodeContext *s,
|
|
int32_t *samples_l, int32_t *samples_r,
|
|
int nb_samples)
|
|
{
|
|
int i;
|
|
|
|
if (s->flags & WV_MONO_DATA) {
|
|
for (i = 0; i < nb_samples; i++)
|
|
pack_float_sample(s, &samples_l[i]);
|
|
} else {
|
|
for (i = 0; i < nb_samples; i++) {
|
|
pack_float_sample(s, &samples_l[i]);
|
|
pack_float_sample(s, &samples_r[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void decorr_stereo_pass2(struct Decorr *dpp,
|
|
int32_t *samples_l, int32_t *samples_r,
|
|
int nb_samples)
|
|
{
|
|
int i, m, k;
|
|
|
|
switch (dpp->value) {
|
|
case 17:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = 2 * dpp->samplesA[0] - dpp->samplesA[1];
|
|
dpp->samplesA[1] = dpp->samplesA[0];
|
|
samples_l[i] = tmp = (dpp->samplesA[0] = samples_l[i]) - APPLY_WEIGHT(dpp->weightA, sam);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
|
|
|
|
sam = 2 * dpp->samplesB[0] - dpp->samplesB[1];
|
|
dpp->samplesB[1] = dpp->samplesB[0];
|
|
samples_r[i] = tmp = (dpp->samplesB[0] = samples_r[i]) - APPLY_WEIGHT(dpp->weightB, sam);
|
|
UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
|
|
}
|
|
break;
|
|
case 18:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = dpp->samplesA[0] + ((dpp->samplesA[0] - dpp->samplesA[1]) >> 1);
|
|
dpp->samplesA[1] = dpp->samplesA[0];
|
|
samples_l[i] = tmp = (dpp->samplesA[0] = samples_l[i]) - APPLY_WEIGHT(dpp->weightA, sam);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
|
|
|
|
sam = dpp->samplesB[0] + ((dpp->samplesB[0] - dpp->samplesB[1]) >> 1);
|
|
dpp->samplesB[1] = dpp->samplesB[0];
|
|
samples_r[i] = tmp = (dpp->samplesB[0] = samples_r[i]) - APPLY_WEIGHT(dpp->weightB, sam);
|
|
UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
|
|
}
|
|
break;
|
|
default:
|
|
for (m = 0, k = dpp->value & (MAX_TERM - 1), i = 0; i < nb_samples; i++) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = dpp->samplesA[m];
|
|
samples_l[i] = tmp = (dpp->samplesA[k] = samples_l[i]) - APPLY_WEIGHT(dpp->weightA, sam);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
|
|
|
|
sam = dpp->samplesB[m];
|
|
samples_r[i] = tmp = (dpp->samplesB[k] = samples_r[i]) - APPLY_WEIGHT(dpp->weightB, sam);
|
|
UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
|
|
|
|
m = (m + 1) & (MAX_TERM - 1);
|
|
k = (k + 1) & (MAX_TERM - 1);
|
|
}
|
|
if (m) {
|
|
int32_t temp_A[MAX_TERM], temp_B[MAX_TERM];
|
|
|
|
memcpy(temp_A, dpp->samplesA, sizeof (dpp->samplesA));
|
|
memcpy(temp_B, dpp->samplesB, sizeof (dpp->samplesB));
|
|
|
|
for (k = 0; k < MAX_TERM; k++) {
|
|
dpp->samplesA[k] = temp_A[m];
|
|
dpp->samplesB[k] = temp_B[m];
|
|
m = (m + 1) & (MAX_TERM - 1);
|
|
}
|
|
}
|
|
break;
|
|
case -1:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam_A, sam_B, tmp;
|
|
|
|
sam_A = dpp->samplesA[0];
|
|
samples_l[i] = tmp = (sam_B = samples_l[i]) - APPLY_WEIGHT(dpp->weightA, sam_A);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
|
|
|
|
samples_r[i] = tmp = (dpp->samplesA[0] = samples_r[i]) - APPLY_WEIGHT(dpp->weightB, sam_B);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
|
|
}
|
|
break;
|
|
case -2:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam_A, sam_B, tmp;
|
|
|
|
sam_B = dpp->samplesB[0];
|
|
samples_r[i] = tmp = (sam_A = samples_r[i]) - APPLY_WEIGHT(dpp->weightB, sam_B);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
|
|
|
|
samples_l[i] = tmp = (dpp->samplesB[0] = samples_l[i]) - APPLY_WEIGHT(dpp->weightA, sam_A);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
|
|
}
|
|
break;
|
|
case -3:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam_A, sam_B, tmp;
|
|
|
|
sam_A = dpp->samplesA[0];
|
|
sam_B = dpp->samplesB[0];
|
|
|
|
dpp->samplesA[0] = tmp = samples_r[i];
|
|
samples_r[i] = tmp -= APPLY_WEIGHT(dpp->weightB, sam_B);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
|
|
|
|
dpp->samplesB[0] = tmp = samples_l[i];
|
|
samples_l[i] = tmp -= APPLY_WEIGHT(dpp->weightA, sam_A);
|
|
UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
#define update_weight_d2(weight, delta, source, result) \
|
|
if (source && result) \
|
|
weight -= (((source ^ result) >> 29) & 4) - 2;
|
|
|
|
#define update_weight_clip_d2(weight, delta, source, result) \
|
|
if (source && result) { \
|
|
const int32_t s = (source ^ result) >> 31; \
|
|
if ((weight = (weight ^ s) + (2 - s)) > 1024) weight = 1024; \
|
|
weight = (weight ^ s) - s; \
|
|
}
|
|
|
|
static void decorr_stereo_pass_id2(struct Decorr *dpp,
|
|
int32_t *samples_l, int32_t *samples_r,
|
|
int nb_samples)
|
|
{
|
|
int i, m, k;
|
|
|
|
switch (dpp->value) {
|
|
case 17:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = 2 * dpp->samplesA[0] - dpp->samplesA[1];
|
|
dpp->samplesA[1] = dpp->samplesA[0];
|
|
samples_l[i] = tmp = (dpp->samplesA[0] = samples_l[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
|
|
update_weight_d2(dpp->weightA, dpp->delta, sam, tmp);
|
|
|
|
sam = 2 * dpp->samplesB[0] - dpp->samplesB[1];
|
|
dpp->samplesB[1] = dpp->samplesB[0];
|
|
samples_r[i] = tmp = (dpp->samplesB[0] = samples_r[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
|
|
update_weight_d2(dpp->weightB, dpp->delta, sam, tmp);
|
|
}
|
|
break;
|
|
case 18:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = dpp->samplesA[0] + ((dpp->samplesA[0] - dpp->samplesA[1]) >> 1);
|
|
dpp->samplesA[1] = dpp->samplesA[0];
|
|
samples_l[i] = tmp = (dpp->samplesA[0] = samples_l[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
|
|
update_weight_d2(dpp->weightA, dpp->delta, sam, tmp);
|
|
|
|
sam = dpp->samplesB[0] + ((dpp->samplesB[0] - dpp->samplesB[1]) >> 1);
|
|
dpp->samplesB[1] = dpp->samplesB[0];
|
|
samples_r[i] = tmp = (dpp->samplesB[0] = samples_r[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
|
|
update_weight_d2(dpp->weightB, dpp->delta, sam, tmp);
|
|
}
|
|
break;
|
|
default:
|
|
for (m = 0, k = dpp->value & (MAX_TERM - 1), i = 0; i < nb_samples; i++) {
|
|
int32_t sam, tmp;
|
|
|
|
sam = dpp->samplesA[m];
|
|
samples_l[i] = tmp = (dpp->samplesA[k] = samples_l[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
|
|
update_weight_d2(dpp->weightA, dpp->delta, sam, tmp);
|
|
|
|
sam = dpp->samplesB[m];
|
|
samples_r[i] = tmp = (dpp->samplesB[k] = samples_r[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
|
|
update_weight_d2(dpp->weightB, dpp->delta, sam, tmp);
|
|
|
|
m = (m + 1) & (MAX_TERM - 1);
|
|
k = (k + 1) & (MAX_TERM - 1);
|
|
}
|
|
|
|
if (m) {
|
|
int32_t temp_A[MAX_TERM], temp_B[MAX_TERM];
|
|
|
|
memcpy(temp_A, dpp->samplesA, sizeof(dpp->samplesA));
|
|
memcpy(temp_B, dpp->samplesB, sizeof(dpp->samplesB));
|
|
|
|
for (k = 0; k < MAX_TERM; k++) {
|
|
dpp->samplesA[k] = temp_A[m];
|
|
dpp->samplesB[k] = temp_B[m];
|
|
m = (m + 1) & (MAX_TERM - 1);
|
|
}
|
|
}
|
|
break;
|
|
case -1:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam_A, sam_B, tmp;
|
|
|
|
sam_A = dpp->samplesA[0];
|
|
samples_l[i] = tmp = (sam_B = samples_l[i]) - APPLY_WEIGHT_I(dpp->weightA, sam_A);
|
|
update_weight_clip_d2(dpp->weightA, dpp->delta, sam_A, tmp);
|
|
|
|
samples_r[i] = tmp = (dpp->samplesA[0] = samples_r[i]) - APPLY_WEIGHT_I(dpp->weightB, sam_B);
|
|
update_weight_clip_d2(dpp->weightB, dpp->delta, sam_B, tmp);
|
|
}
|
|
break;
|
|
case -2:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam_A, sam_B, tmp;
|
|
|
|
sam_B = dpp->samplesB[0];
|
|
samples_r[i] = tmp = (sam_A = samples_r[i]) - APPLY_WEIGHT_I(dpp->weightB, sam_B);
|
|
update_weight_clip_d2(dpp->weightB, dpp->delta, sam_B, tmp);
|
|
|
|
samples_l[i] = tmp = (dpp->samplesB[0] = samples_l[i]) - APPLY_WEIGHT_I(dpp->weightA, sam_A);
|
|
update_weight_clip_d2(dpp->weightA, dpp->delta, sam_A, tmp);
|
|
}
|
|
break;
|
|
case -3:
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t sam_A, sam_B, tmp;
|
|
|
|
sam_A = dpp->samplesA[0];
|
|
sam_B = dpp->samplesB[0];
|
|
|
|
dpp->samplesA[0] = tmp = samples_r[i];
|
|
samples_r[i] = tmp -= APPLY_WEIGHT_I(dpp->weightB, sam_B);
|
|
update_weight_clip_d2(dpp->weightB, dpp->delta, sam_B, tmp);
|
|
|
|
dpp->samplesB[0] = tmp = samples_l[i];
|
|
samples_l[i] = tmp -= APPLY_WEIGHT_I(dpp->weightA, sam_A);
|
|
update_weight_clip_d2(dpp->weightA, dpp->delta, sam_A, tmp);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void put_metadata_block(PutByteContext *pb, int flags, int size)
|
|
{
|
|
if (size & 1)
|
|
flags |= WP_IDF_ODD;
|
|
|
|
bytestream2_put_byte(pb, flags);
|
|
bytestream2_put_byte(pb, (size + 1) >> 1);
|
|
}
|
|
|
|
static int wavpack_encode_block(WavPackEncodeContext *s,
|
|
int32_t *samples_l, int32_t *samples_r,
|
|
uint8_t *out, int out_size)
|
|
{
|
|
int block_size, start, end, data_size, tcount, temp, m = 0;
|
|
int i, j, ret = 0, got_extra = 0, nb_samples = s->block_samples;
|
|
uint32_t crc = 0xffffffffu;
|
|
struct Decorr *dpp;
|
|
PutByteContext pb;
|
|
|
|
if (s->flags & WV_MONO_DATA) {
|
|
CLEAR(s->w);
|
|
}
|
|
if (!(s->flags & WV_MONO) && s->optimize_mono) {
|
|
int32_t lor = 0, diff = 0;
|
|
|
|
for (i = 0; i < nb_samples; i++) {
|
|
lor |= samples_l[i] | samples_r[i];
|
|
diff |= samples_l[i] - samples_r[i];
|
|
|
|
if (lor && diff)
|
|
break;
|
|
}
|
|
|
|
if (i == nb_samples && lor && !diff) {
|
|
s->flags &= ~(WV_JOINT_STEREO | WV_CROSS_DECORR);
|
|
s->flags |= WV_FALSE_STEREO;
|
|
|
|
if (!s->false_stereo) {
|
|
s->false_stereo = 1;
|
|
s->num_terms = 0;
|
|
CLEAR(s->w);
|
|
}
|
|
} else if (s->false_stereo) {
|
|
s->false_stereo = 0;
|
|
s->num_terms = 0;
|
|
CLEAR(s->w);
|
|
}
|
|
}
|
|
|
|
if (s->flags & SHIFT_MASK) {
|
|
int shift = (s->flags & SHIFT_MASK) >> SHIFT_LSB;
|
|
int mag = (s->flags & MAG_MASK) >> MAG_LSB;
|
|
|
|
if (s->flags & WV_MONO_DATA)
|
|
shift_mono(samples_l, nb_samples, shift);
|
|
else
|
|
shift_stereo(samples_l, samples_r, nb_samples, shift);
|
|
|
|
if ((mag -= shift) < 0)
|
|
s->flags &= ~MAG_MASK;
|
|
else
|
|
s->flags -= (1 << MAG_LSB) * shift;
|
|
}
|
|
|
|
if ((s->flags & WV_FLOAT_DATA) || (s->flags & MAG_MASK) >> MAG_LSB >= 24) {
|
|
av_fast_padded_malloc(&s->orig_l, &s->orig_l_size, sizeof(int32_t) * nb_samples);
|
|
memcpy(s->orig_l, samples_l, sizeof(int32_t) * nb_samples);
|
|
if (!(s->flags & WV_MONO_DATA)) {
|
|
av_fast_padded_malloc(&s->orig_r, &s->orig_r_size, sizeof(int32_t) * nb_samples);
|
|
memcpy(s->orig_r, samples_r, sizeof(int32_t) * nb_samples);
|
|
}
|
|
|
|
if (s->flags & WV_FLOAT_DATA)
|
|
got_extra = scan_float(s, samples_l, samples_r, nb_samples);
|
|
else
|
|
got_extra = scan_int32(s, samples_l, samples_r, nb_samples);
|
|
s->num_terms = 0;
|
|
} else {
|
|
scan_int23(s, samples_l, samples_r, nb_samples);
|
|
if (s->shift != s->int32_zeros + s->int32_ones + s->int32_dups) {
|
|
s->shift = s->int32_zeros + s->int32_ones + s->int32_dups;
|
|
s->num_terms = 0;
|
|
}
|
|
}
|
|
|
|
if (!s->num_passes && !s->num_terms) {
|
|
s->num_passes = 1;
|
|
|
|
if (s->flags & WV_MONO_DATA)
|
|
ret = wv_mono(s, samples_l, 1, 0);
|
|
else
|
|
ret = wv_stereo(s, samples_l, samples_r, 1, 0);
|
|
|
|
s->num_passes = 0;
|
|
}
|
|
if (s->flags & WV_MONO_DATA) {
|
|
for (i = 0; i < nb_samples; i++)
|
|
crc += (crc << 1) + samples_l[i];
|
|
|
|
if (s->num_passes)
|
|
ret = wv_mono(s, samples_l, !s->num_terms, 1);
|
|
} else {
|
|
for (i = 0; i < nb_samples; i++)
|
|
crc += (crc << 3) + ((uint32_t)samples_l[i] << 1) + samples_l[i] + samples_r[i];
|
|
|
|
if (s->num_passes)
|
|
ret = wv_stereo(s, samples_l, samples_r, !s->num_terms, 1);
|
|
}
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (!s->ch_offset)
|
|
s->flags |= WV_INITIAL_BLOCK;
|
|
|
|
s->ch_offset += 1 + !(s->flags & WV_MONO);
|
|
|
|
if (s->ch_offset == s->avctx->ch_layout.nb_channels)
|
|
s->flags |= WV_FINAL_BLOCK;
|
|
|
|
bytestream2_init_writer(&pb, out, out_size);
|
|
bytestream2_put_le32(&pb, MKTAG('w', 'v', 'p', 'k'));
|
|
bytestream2_put_le32(&pb, 0);
|
|
bytestream2_put_le16(&pb, 0x410);
|
|
bytestream2_put_le16(&pb, 0);
|
|
bytestream2_put_le32(&pb, 0);
|
|
bytestream2_put_le32(&pb, s->sample_index);
|
|
bytestream2_put_le32(&pb, nb_samples);
|
|
bytestream2_put_le32(&pb, s->flags);
|
|
bytestream2_put_le32(&pb, crc);
|
|
|
|
if (s->flags & WV_INITIAL_BLOCK &&
|
|
s->avctx->ch_layout.order == AV_CHANNEL_ORDER_NATIVE &&
|
|
s->avctx->ch_layout.u.mask != AV_CH_LAYOUT_MONO &&
|
|
s->avctx->ch_layout.u.mask != AV_CH_LAYOUT_STEREO) {
|
|
put_metadata_block(&pb, WP_ID_CHANINFO, 5);
|
|
bytestream2_put_byte(&pb, s->avctx->ch_layout.nb_channels);
|
|
if (s->avctx->ch_layout.u.mask >> 32)
|
|
bytestream2_put_le32(&pb, 0);
|
|
else
|
|
bytestream2_put_le32(&pb, s->avctx->ch_layout.u.mask);
|
|
bytestream2_put_byte(&pb, 0);
|
|
} else if (s->flags & WV_INITIAL_BLOCK &&
|
|
s->avctx->ch_layout.order == AV_CHANNEL_ORDER_UNSPEC) {
|
|
put_metadata_block(&pb, WP_ID_CHANINFO, 5);
|
|
bytestream2_put_byte(&pb, s->avctx->ch_layout.nb_channels);
|
|
bytestream2_put_le32(&pb, 0);
|
|
bytestream2_put_byte(&pb, 0);
|
|
}
|
|
|
|
if ((s->flags & SRATE_MASK) == SRATE_MASK) {
|
|
put_metadata_block(&pb, WP_ID_SAMPLE_RATE, 3);
|
|
bytestream2_put_le24(&pb, s->avctx->sample_rate);
|
|
bytestream2_put_byte(&pb, 0);
|
|
}
|
|
|
|
put_metadata_block(&pb, WP_ID_DECTERMS, s->num_terms);
|
|
for (i = 0; i < s->num_terms; i++) {
|
|
struct Decorr *dpp = &s->decorr_passes[i];
|
|
bytestream2_put_byte(&pb, ((dpp->value + 5) & 0x1f) | ((dpp->delta << 5) & 0xe0));
|
|
}
|
|
if (s->num_terms & 1)
|
|
bytestream2_put_byte(&pb, 0);
|
|
|
|
#define WRITE_DECWEIGHT(type) do { \
|
|
temp = store_weight(type); \
|
|
bytestream2_put_byte(&pb, temp); \
|
|
type = restore_weight(temp); \
|
|
} while (0)
|
|
|
|
bytestream2_put_byte(&pb, WP_ID_DECWEIGHTS);
|
|
bytestream2_put_byte(&pb, 0);
|
|
start = bytestream2_tell_p(&pb);
|
|
for (i = s->num_terms - 1; i >= 0; --i) {
|
|
struct Decorr *dpp = &s->decorr_passes[i];
|
|
|
|
if (store_weight(dpp->weightA) ||
|
|
(!(s->flags & WV_MONO_DATA) && store_weight(dpp->weightB)))
|
|
break;
|
|
}
|
|
tcount = i + 1;
|
|
for (i = 0; i < s->num_terms; i++) {
|
|
struct Decorr *dpp = &s->decorr_passes[i];
|
|
if (i < tcount) {
|
|
WRITE_DECWEIGHT(dpp->weightA);
|
|
if (!(s->flags & WV_MONO_DATA))
|
|
WRITE_DECWEIGHT(dpp->weightB);
|
|
} else {
|
|
dpp->weightA = dpp->weightB = 0;
|
|
}
|
|
}
|
|
end = bytestream2_tell_p(&pb);
|
|
out[start - 2] = WP_ID_DECWEIGHTS | (((end - start) & 1) ? WP_IDF_ODD: 0);
|
|
out[start - 1] = (end - start + 1) >> 1;
|
|
if ((end - start) & 1)
|
|
bytestream2_put_byte(&pb, 0);
|
|
|
|
#define WRITE_DECSAMPLE(type) do { \
|
|
temp = log2s(type); \
|
|
type = wp_exp2(temp); \
|
|
bytestream2_put_le16(&pb, temp); \
|
|
} while (0)
|
|
|
|
bytestream2_put_byte(&pb, WP_ID_DECSAMPLES);
|
|
bytestream2_put_byte(&pb, 0);
|
|
start = bytestream2_tell_p(&pb);
|
|
for (i = 0; i < s->num_terms; i++) {
|
|
struct Decorr *dpp = &s->decorr_passes[i];
|
|
if (i == 0) {
|
|
if (dpp->value > MAX_TERM) {
|
|
WRITE_DECSAMPLE(dpp->samplesA[0]);
|
|
WRITE_DECSAMPLE(dpp->samplesA[1]);
|
|
if (!(s->flags & WV_MONO_DATA)) {
|
|
WRITE_DECSAMPLE(dpp->samplesB[0]);
|
|
WRITE_DECSAMPLE(dpp->samplesB[1]);
|
|
}
|
|
} else if (dpp->value < 0) {
|
|
WRITE_DECSAMPLE(dpp->samplesA[0]);
|
|
WRITE_DECSAMPLE(dpp->samplesB[0]);
|
|
} else {
|
|
for (j = 0; j < dpp->value; j++) {
|
|
WRITE_DECSAMPLE(dpp->samplesA[j]);
|
|
if (!(s->flags & WV_MONO_DATA))
|
|
WRITE_DECSAMPLE(dpp->samplesB[j]);
|
|
}
|
|
}
|
|
} else {
|
|
CLEAR(dpp->samplesA);
|
|
CLEAR(dpp->samplesB);
|
|
}
|
|
}
|
|
end = bytestream2_tell_p(&pb);
|
|
out[start - 1] = (end - start) >> 1;
|
|
|
|
#define WRITE_CHAN_ENTROPY(chan) do { \
|
|
for (i = 0; i < 3; i++) { \
|
|
temp = wp_log2(s->w.c[chan].median[i]); \
|
|
bytestream2_put_le16(&pb, temp); \
|
|
s->w.c[chan].median[i] = wp_exp2(temp); \
|
|
} \
|
|
} while (0)
|
|
|
|
put_metadata_block(&pb, WP_ID_ENTROPY, 6 * (1 + (!(s->flags & WV_MONO_DATA))));
|
|
WRITE_CHAN_ENTROPY(0);
|
|
if (!(s->flags & WV_MONO_DATA))
|
|
WRITE_CHAN_ENTROPY(1);
|
|
|
|
if (s->flags & WV_FLOAT_DATA) {
|
|
put_metadata_block(&pb, WP_ID_FLOATINFO, 4);
|
|
bytestream2_put_byte(&pb, s->float_flags);
|
|
bytestream2_put_byte(&pb, s->float_shift);
|
|
bytestream2_put_byte(&pb, s->float_max_exp);
|
|
bytestream2_put_byte(&pb, 127);
|
|
}
|
|
|
|
if (s->flags & WV_INT32_DATA) {
|
|
put_metadata_block(&pb, WP_ID_INT32INFO, 4);
|
|
bytestream2_put_byte(&pb, s->int32_sent_bits);
|
|
bytestream2_put_byte(&pb, s->int32_zeros);
|
|
bytestream2_put_byte(&pb, s->int32_ones);
|
|
bytestream2_put_byte(&pb, s->int32_dups);
|
|
}
|
|
|
|
if (s->flags & WV_MONO_DATA && !s->num_passes) {
|
|
for (i = 0; i < nb_samples; i++) {
|
|
int32_t code = samples_l[i];
|
|
|
|
for (tcount = s->num_terms, dpp = s->decorr_passes; tcount--; dpp++) {
|
|
int32_t sam;
|
|
|
|
if (dpp->value > MAX_TERM) {
|
|
if (dpp->value & 1)
|
|
sam = 2 * dpp->samplesA[0] - dpp->samplesA[1];
|
|
else
|
|
sam = (3 * dpp->samplesA[0] - dpp->samplesA[1]) >> 1;
|
|
|
|
dpp->samplesA[1] = dpp->samplesA[0];
|
|
dpp->samplesA[0] = code;
|
|
} else {
|
|
sam = dpp->samplesA[m];
|
|
dpp->samplesA[(m + dpp->value) & (MAX_TERM - 1)] = code;
|
|
}
|
|
|
|
code -= APPLY_WEIGHT(dpp->weightA, sam);
|
|
UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, code);
|
|
}
|
|
|
|
m = (m + 1) & (MAX_TERM - 1);
|
|
samples_l[i] = code;
|
|
}
|
|
if (m) {
|
|
for (tcount = s->num_terms, dpp = s->decorr_passes; tcount--; dpp++)
|
|
if (dpp->value > 0 && dpp->value <= MAX_TERM) {
|
|
int32_t temp_A[MAX_TERM], temp_B[MAX_TERM];
|
|
int k;
|
|
|
|
memcpy(temp_A, dpp->samplesA, sizeof(dpp->samplesA));
|
|
memcpy(temp_B, dpp->samplesB, sizeof(dpp->samplesB));
|
|
|
|
for (k = 0; k < MAX_TERM; k++) {
|
|
dpp->samplesA[k] = temp_A[m];
|
|
dpp->samplesB[k] = temp_B[m];
|
|
m = (m + 1) & (MAX_TERM - 1);
|
|
}
|
|
}
|
|
}
|
|
} else if (!s->num_passes) {
|
|
if (s->flags & WV_JOINT_STEREO) {
|
|
for (i = 0; i < nb_samples; i++)
|
|
samples_r[i] += ((samples_l[i] -= samples_r[i]) >> 1);
|
|
}
|
|
|
|
for (i = 0; i < s->num_terms; i++) {
|
|
struct Decorr *dpp = &s->decorr_passes[i];
|
|
if (((s->flags & MAG_MASK) >> MAG_LSB) >= 16 || dpp->delta != 2)
|
|
decorr_stereo_pass2(dpp, samples_l, samples_r, nb_samples);
|
|
else
|
|
decorr_stereo_pass_id2(dpp, samples_l, samples_r, nb_samples);
|
|
}
|
|
}
|
|
|
|
bytestream2_put_byte(&pb, WP_ID_DATA | WP_IDF_LONG);
|
|
init_put_bits(&s->pb, pb.buffer + 3, bytestream2_get_bytes_left_p(&pb));
|
|
if (s->flags & WV_MONO_DATA) {
|
|
for (i = 0; i < nb_samples; i++)
|
|
wavpack_encode_sample(s, &s->w.c[0], s->samples[0][i]);
|
|
} else {
|
|
for (i = 0; i < nb_samples; i++) {
|
|
wavpack_encode_sample(s, &s->w.c[0], s->samples[0][i]);
|
|
wavpack_encode_sample(s, &s->w.c[1], s->samples[1][i]);
|
|
}
|
|
}
|
|
encode_flush(s);
|
|
flush_put_bits(&s->pb);
|
|
data_size = put_bytes_output(&s->pb);
|
|
bytestream2_put_le24(&pb, (data_size + 1) >> 1);
|
|
bytestream2_skip_p(&pb, data_size);
|
|
if (data_size & 1)
|
|
bytestream2_put_byte(&pb, 0);
|
|
|
|
if (got_extra) {
|
|
bytestream2_put_byte(&pb, WP_ID_EXTRABITS | WP_IDF_LONG);
|
|
init_put_bits(&s->pb, pb.buffer + 7, bytestream2_get_bytes_left_p(&pb));
|
|
if (s->flags & WV_FLOAT_DATA)
|
|
pack_float(s, s->orig_l, s->orig_r, nb_samples);
|
|
else
|
|
pack_int32(s, s->orig_l, s->orig_r, nb_samples);
|
|
flush_put_bits(&s->pb);
|
|
data_size = put_bytes_output(&s->pb);
|
|
bytestream2_put_le24(&pb, (data_size + 5) >> 1);
|
|
bytestream2_put_le32(&pb, s->crc_x);
|
|
bytestream2_skip_p(&pb, data_size);
|
|
if (data_size & 1)
|
|
bytestream2_put_byte(&pb, 0);
|
|
}
|
|
|
|
block_size = bytestream2_tell_p(&pb);
|
|
AV_WL32(out + 4, block_size - 8);
|
|
|
|
av_assert0(!bytestream2_get_eof(&pb));
|
|
|
|
return block_size;
|
|
}
|
|
|
|
static void fill_buffer(WavPackEncodeContext *s,
|
|
const int8_t *src, int32_t *dst,
|
|
int nb_samples)
|
|
{
|
|
int i;
|
|
|
|
#define COPY_SAMPLES(type, offset, shift) do { \
|
|
const type *sptr = (const type *)src; \
|
|
for (i = 0; i < nb_samples; i++) \
|
|
dst[i] = (sptr[i] - offset) >> shift; \
|
|
} while (0)
|
|
|
|
switch (s->avctx->sample_fmt) {
|
|
case AV_SAMPLE_FMT_U8P:
|
|
COPY_SAMPLES(uint8_t, 0x80, 0);
|
|
break;
|
|
case AV_SAMPLE_FMT_S16P:
|
|
COPY_SAMPLES(int16_t, 0, 0);
|
|
break;
|
|
case AV_SAMPLE_FMT_S32P:
|
|
if (s->avctx->bits_per_raw_sample <= 24) {
|
|
COPY_SAMPLES(int32_t, 0, 8);
|
|
break;
|
|
}
|
|
case AV_SAMPLE_FMT_FLTP:
|
|
memcpy(dst, src, nb_samples * 4);
|
|
}
|
|
}
|
|
|
|
static void set_samplerate(WavPackEncodeContext *s)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 15; i++) {
|
|
if (wv_rates[i] == s->avctx->sample_rate)
|
|
break;
|
|
}
|
|
|
|
s->flags = i << SRATE_LSB;
|
|
}
|
|
|
|
static int wavpack_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
|
|
const AVFrame *frame, int *got_packet_ptr)
|
|
{
|
|
WavPackEncodeContext *s = avctx->priv_data;
|
|
int buf_size, ret;
|
|
uint8_t *buf;
|
|
|
|
s->block_samples = frame->nb_samples;
|
|
av_fast_padded_malloc(&s->samples[0], &s->samples_size[0],
|
|
sizeof(int32_t) * s->block_samples);
|
|
if (!s->samples[0])
|
|
return AVERROR(ENOMEM);
|
|
if (avctx->ch_layout.nb_channels > 1) {
|
|
av_fast_padded_malloc(&s->samples[1], &s->samples_size[1],
|
|
sizeof(int32_t) * s->block_samples);
|
|
if (!s->samples[1])
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
buf_size = s->block_samples * avctx->ch_layout.nb_channels * 8
|
|
+ 200 * avctx->ch_layout.nb_channels /* for headers */;
|
|
if ((ret = ff_alloc_packet(avctx, avpkt, buf_size)) < 0)
|
|
return ret;
|
|
buf = avpkt->data;
|
|
|
|
for (s->ch_offset = 0; s->ch_offset < avctx->ch_layout.nb_channels;) {
|
|
set_samplerate(s);
|
|
|
|
switch (s->avctx->sample_fmt) {
|
|
case AV_SAMPLE_FMT_S16P: s->flags |= 1; break;
|
|
case AV_SAMPLE_FMT_S32P: s->flags |= 3 - (s->avctx->bits_per_raw_sample <= 24); break;
|
|
case AV_SAMPLE_FMT_FLTP: s->flags |= 3 | WV_FLOAT_DATA;
|
|
}
|
|
|
|
fill_buffer(s, frame->extended_data[s->ch_offset], s->samples[0], s->block_samples);
|
|
if (avctx->ch_layout.nb_channels - s->ch_offset == 1) {
|
|
s->flags |= WV_MONO;
|
|
} else {
|
|
s->flags |= WV_CROSS_DECORR;
|
|
fill_buffer(s, frame->extended_data[s->ch_offset + 1], s->samples[1], s->block_samples);
|
|
}
|
|
|
|
s->flags += (1 << MAG_LSB) * ((s->flags & 3) * 8 + 7);
|
|
|
|
if ((ret = wavpack_encode_block(s, s->samples[0], s->samples[1],
|
|
buf, buf_size)) < 0)
|
|
return ret;
|
|
|
|
buf += ret;
|
|
buf_size -= ret;
|
|
}
|
|
s->sample_index += frame->nb_samples;
|
|
|
|
avpkt->size = buf - avpkt->data;
|
|
*got_packet_ptr = 1;
|
|
return 0;
|
|
}
|
|
|
|
static av_cold int wavpack_encode_close(AVCodecContext *avctx)
|
|
{
|
|
WavPackEncodeContext *s = avctx->priv_data;
|
|
int i;
|
|
|
|
for (i = 0; i < MAX_TERMS + 2; i++) {
|
|
av_freep(&s->sampleptrs[i][0]);
|
|
av_freep(&s->sampleptrs[i][1]);
|
|
s->sampleptrs_size[i][0] = s->sampleptrs_size[i][1] = 0;
|
|
}
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
av_freep(&s->samples[i]);
|
|
s->samples_size[i] = 0;
|
|
|
|
av_freep(&s->best_buffer[i]);
|
|
s->best_buffer_size[i] = 0;
|
|
|
|
av_freep(&s->temp_buffer[i][0]);
|
|
av_freep(&s->temp_buffer[i][1]);
|
|
s->temp_buffer_size[i][0] = s->temp_buffer_size[i][1] = 0;
|
|
}
|
|
|
|
av_freep(&s->js_left);
|
|
av_freep(&s->js_right);
|
|
s->js_left_size = s->js_right_size = 0;
|
|
|
|
av_freep(&s->orig_l);
|
|
av_freep(&s->orig_r);
|
|
s->orig_l_size = s->orig_r_size = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(WavPackEncodeContext, x)
|
|
#define FLAGS AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM
|
|
static const AVOption options[] = {
|
|
{ "joint_stereo", "", OFFSET(joint), AV_OPT_TYPE_BOOL, {.i64=-1}, -1, 1, FLAGS },
|
|
{ "optimize_mono", "", OFFSET(optimize_mono), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
|
|
{ NULL },
|
|
};
|
|
|
|
static const AVClass wavpack_encoder_class = {
|
|
.class_name = "WavPack encoder",
|
|
.item_name = av_default_item_name,
|
|
.option = options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
const FFCodec ff_wavpack_encoder = {
|
|
.p.name = "wavpack",
|
|
CODEC_LONG_NAME("WavPack"),
|
|
.p.type = AVMEDIA_TYPE_AUDIO,
|
|
.p.id = AV_CODEC_ID_WAVPACK,
|
|
.p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_SMALL_LAST_FRAME |
|
|
AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
|
|
.priv_data_size = sizeof(WavPackEncodeContext),
|
|
.p.priv_class = &wavpack_encoder_class,
|
|
.init = wavpack_encode_init,
|
|
FF_CODEC_ENCODE_CB(wavpack_encode_frame),
|
|
.close = wavpack_encode_close,
|
|
.p.sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_U8P,
|
|
AV_SAMPLE_FMT_S16P,
|
|
AV_SAMPLE_FMT_S32P,
|
|
AV_SAMPLE_FMT_FLTP,
|
|
AV_SAMPLE_FMT_NONE },
|
|
};
|