/*
* WavPack lossless audio decoder
* Copyright (c) 2006,2011 Konstantin Shishkov
+ * Copyright (c) 2020 David Bryant
*
* This file is part of FFmpeg.
*
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/buffer.h"
#include "libavutil/channel_layout.h"
#define BITSTREAM_READER_LE
#include "thread.h"
#include "unary.h"
#include "wavpack.h"
+#include "dsd.h"
/**
* @file
* WavPack lossless audio decoder
*/
-typedef struct SavedContext {
- int offset;
- int size;
- int bits_used;
- uint32_t crc;
-} SavedContext;
+#define DSD_BYTE_READY(low,high) (!(((low) ^ (high)) & 0xff000000))
+
+#define PTABLE_BITS 8
+#define PTABLE_BINS (1<<PTABLE_BITS)
+#define PTABLE_MASK (PTABLE_BINS-1)
+
+#define UP 0x010000fe
+#define DOWN 0x00010000
+#define DECAY 8
+
+#define PRECISION 20
+#define VALUE_ONE (1 << PRECISION)
+#define PRECISION_USE 12
+
+#define RATE_S 20
+
+#define MAX_HISTORY_BITS 5
+#define MAX_HISTORY_BINS (1 << MAX_HISTORY_BITS)
+#define MAX_BIN_BYTES 1280 // for value_lookup, per bin (2k - 512 - 256)
+
+typedef enum {
+ MODULATION_PCM, // pulse code modulation
+ MODULATION_DSD // pulse density modulation (aka DSD)
+} Modulation;
typedef struct WavpackFrameContext {
AVCodecContext *avctx;
int got_extra_bits;
uint32_t crc_extra_bits;
GetBitContext gb_extra_bits;
- int data_size; // in bits
int samples;
int terms;
Decorr decorr[MAX_TERMS];
int float_shift;
int float_max_exp;
WvChannel ch[2];
- int pos;
- SavedContext sc, extra_sc;
+
+ GetByteContext gbyte;
+ int ptable [PTABLE_BINS];
+ uint8_t value_lookup_buffer[MAX_HISTORY_BINS*MAX_BIN_BYTES];
+ uint16_t summed_probabilities[MAX_HISTORY_BINS][256];
+ uint8_t probabilities[MAX_HISTORY_BINS][256];
+ uint8_t *value_lookup[MAX_HISTORY_BINS];
} WavpackFrameContext;
#define WV_MAX_FRAME_DECODERS 14
int block;
int samples;
int ch_offset;
+
+ AVFrame *frame;
+ ThreadFrame curr_frame, prev_frame;
+ Modulation modulation;
+
+ AVBufferRef *dsd_ref;
+ DSDContext *dsdctx;
+ int dsd_channels;
} WavpackContext;
#define LEVEL_DECAY(a) (((a) + 0x80) >> 8)
return value.f;
}
-static void wv_reset_saved_context(WavpackFrameContext *s)
-{
- s->pos = 0;
- s->sc.crc = s->extra_sc.crc = 0xFFFFFFFF;
-}
-
static inline int wv_check_crc(WavpackFrameContext *s, uint32_t crc,
uint32_t crc_extra_bits)
{
return 0;
}
+static void init_ptable(int *table, int rate_i, int rate_s)
+{
+ int value = 0x808000, rate = rate_i << 8;
+
+ for (int c = (rate + 128) >> 8; c--;)
+ value += (DOWN - value) >> DECAY;
+
+ for (int i = 0; i < PTABLE_BINS/2; i++) {
+ table[i] = value;
+ table[PTABLE_BINS-1-i] = 0x100ffff - value;
+
+ if (value > 0x010000) {
+ rate += (rate * rate_s + 128) >> 8;
+
+ for (int c = (rate + 64) >> 7; c--;)
+ value += (DOWN - value) >> DECAY;
+ }
+ }
+}
+
+typedef struct {
+ int32_t value, fltr0, fltr1, fltr2, fltr3, fltr4, fltr5, fltr6, factor;
+ unsigned int byte;
+} DSDfilters;
+
+static int wv_unpack_dsd_high(WavpackFrameContext *s, uint8_t *dst_left, uint8_t *dst_right)
+{
+ uint32_t checksum = 0xFFFFFFFF;
+ uint8_t *dst_l = dst_left, *dst_r = dst_right;
+ int total_samples = s->samples, stereo = dst_r ? 1 : 0;
+ DSDfilters filters[2], *sp = filters;
+ int rate_i, rate_s;
+ uint32_t low, high, value;
+
+ if (bytestream2_get_bytes_left(&s->gbyte) < (stereo ? 20 : 13))
+ return AVERROR_INVALIDDATA;
+
+ rate_i = bytestream2_get_byte(&s->gbyte);
+ rate_s = bytestream2_get_byte(&s->gbyte);
+
+ if (rate_s != RATE_S)
+ return AVERROR_INVALIDDATA;
+
+ init_ptable(s->ptable, rate_i, rate_s);
+
+ for (int channel = 0; channel < stereo + 1; channel++) {
+ DSDfilters *sp = filters + channel;
+
+ sp->fltr1 = bytestream2_get_byte(&s->gbyte) << (PRECISION - 8);
+ sp->fltr2 = bytestream2_get_byte(&s->gbyte) << (PRECISION - 8);
+ sp->fltr3 = bytestream2_get_byte(&s->gbyte) << (PRECISION - 8);
+ sp->fltr4 = bytestream2_get_byte(&s->gbyte) << (PRECISION - 8);
+ sp->fltr5 = bytestream2_get_byte(&s->gbyte) << (PRECISION - 8);
+ sp->fltr6 = 0;
+ sp->factor = bytestream2_get_byte(&s->gbyte) & 0xff;
+ sp->factor |= (bytestream2_get_byte(&s->gbyte) << 8) & 0xff00;
+ sp->factor = (int32_t)((uint32_t)sp->factor << 16) >> 16;
+ }
+
+ value = bytestream2_get_be32(&s->gbyte);
+ high = 0xffffffff;
+ low = 0x0;
+
+ while (total_samples--) {
+ int bitcount = 8;
+
+ sp[0].value = sp[0].fltr1 - sp[0].fltr5 + ((sp[0].fltr6 * sp[0].factor) >> 2);
+
+ if (stereo)
+ sp[1].value = sp[1].fltr1 - sp[1].fltr5 + ((sp[1].fltr6 * sp[1].factor) >> 2);
+
+ while (bitcount--) {
+ int32_t *pp = s->ptable + ((sp[0].value >> (PRECISION - PRECISION_USE)) & PTABLE_MASK);
+ uint32_t split = low + ((high - low) >> 8) * (*pp >> 16);
+
+ if (value <= split) {
+ high = split;
+ *pp += (UP - *pp) >> DECAY;
+ sp[0].fltr0 = -1;
+ } else {
+ low = split + 1;
+ *pp += (DOWN - *pp) >> DECAY;
+ sp[0].fltr0 = 0;
+ }
+
+ while (DSD_BYTE_READY(high, low) && bytestream2_get_bytes_left(&s->gbyte)) {
+ value = (value << 8) | bytestream2_get_byte(&s->gbyte);
+ high = (high << 8) | 0xff;
+ low <<= 8;
+ }
+
+ sp[0].value += sp[0].fltr6 * 8;
+ sp[0].byte = (sp[0].byte << 1) | (sp[0].fltr0 & 1);
+ sp[0].factor += (((sp[0].value ^ sp[0].fltr0) >> 31) | 1) &
+ ((sp[0].value ^ (sp[0].value - (sp[0].fltr6 * 16))) >> 31);
+ sp[0].fltr1 += ((sp[0].fltr0 & VALUE_ONE) - sp[0].fltr1) >> 6;
+ sp[0].fltr2 += ((sp[0].fltr0 & VALUE_ONE) - sp[0].fltr2) >> 4;
+ sp[0].fltr3 += (sp[0].fltr2 - sp[0].fltr3) >> 4;
+ sp[0].fltr4 += (sp[0].fltr3 - sp[0].fltr4) >> 4;
+ sp[0].value = (sp[0].fltr4 - sp[0].fltr5) >> 4;
+ sp[0].fltr5 += sp[0].value;
+ sp[0].fltr6 += (sp[0].value - sp[0].fltr6) >> 3;
+ sp[0].value = sp[0].fltr1 - sp[0].fltr5 + ((sp[0].fltr6 * sp[0].factor) >> 2);
+
+ if (!stereo)
+ continue;
+
+ pp = s->ptable + ((sp[1].value >> (PRECISION - PRECISION_USE)) & PTABLE_MASK);
+ split = low + ((high - low) >> 8) * (*pp >> 16);
+
+ if (value <= split) {
+ high = split;
+ *pp += (UP - *pp) >> DECAY;
+ sp[1].fltr0 = -1;
+ } else {
+ low = split + 1;
+ *pp += (DOWN - *pp) >> DECAY;
+ sp[1].fltr0 = 0;
+ }
+
+ while (DSD_BYTE_READY(high, low) && bytestream2_get_bytes_left(&s->gbyte)) {
+ value = (value << 8) | bytestream2_get_byte(&s->gbyte);
+ high = (high << 8) | 0xff;
+ low <<= 8;
+ }
+
+ sp[1].value += sp[1].fltr6 * 8;
+ sp[1].byte = (sp[1].byte << 1) | (sp[1].fltr0 & 1);
+ sp[1].factor += (((sp[1].value ^ sp[1].fltr0) >> 31) | 1) &
+ ((sp[1].value ^ (sp[1].value - (sp[1].fltr6 * 16))) >> 31);
+ sp[1].fltr1 += ((sp[1].fltr0 & VALUE_ONE) - sp[1].fltr1) >> 6;
+ sp[1].fltr2 += ((sp[1].fltr0 & VALUE_ONE) - sp[1].fltr2) >> 4;
+ sp[1].fltr3 += (sp[1].fltr2 - sp[1].fltr3) >> 4;
+ sp[1].fltr4 += (sp[1].fltr3 - sp[1].fltr4) >> 4;
+ sp[1].value = (sp[1].fltr4 - sp[1].fltr5) >> 4;
+ sp[1].fltr5 += sp[1].value;
+ sp[1].fltr6 += (sp[1].value - sp[1].fltr6) >> 3;
+ sp[1].value = sp[1].fltr1 - sp[1].fltr5 + ((sp[1].fltr6 * sp[1].factor) >> 2);
+ }
+
+ checksum += (checksum << 1) + (*dst_l = sp[0].byte & 0xff);
+ sp[0].factor -= (sp[0].factor + 512) >> 10;
+ dst_l += 4;
+
+ if (stereo) {
+ checksum += (checksum << 1) + (*dst_r = filters[1].byte & 0xff);
+ filters[1].factor -= (filters[1].factor + 512) >> 10;
+ dst_r += 4;
+ }
+ }
+
+ if (wv_check_crc(s, checksum, 0)) {
+ if (s->avctx->err_recognition & AV_EF_CRCCHECK)
+ return AVERROR_INVALIDDATA;
+
+ memset(dst_left, 0x69, s->samples * 4);
+
+ if (dst_r)
+ memset(dst_right, 0x69, s->samples * 4);
+ }
+
+ return 0;
+}
+
+static int wv_unpack_dsd_fast(WavpackFrameContext *s, uint8_t *dst_left, uint8_t *dst_right)
+{
+ uint8_t *dst_l = dst_left, *dst_r = dst_right;
+ uint8_t history_bits, max_probability;
+ int total_summed_probabilities = 0;
+ int total_samples = s->samples;
+ uint8_t *vlb = s->value_lookup_buffer;
+ int history_bins, p0, p1, chan;
+ uint32_t checksum = 0xFFFFFFFF;
+ uint32_t low, high, value;
+
+ if (!bytestream2_get_bytes_left(&s->gbyte))
+ return AVERROR_INVALIDDATA;
+
+ history_bits = bytestream2_get_byte(&s->gbyte);
+
+ if (!bytestream2_get_bytes_left(&s->gbyte) || history_bits > MAX_HISTORY_BITS)
+ return AVERROR_INVALIDDATA;
+
+ history_bins = 1 << history_bits;
+ max_probability = bytestream2_get_byte(&s->gbyte);
+
+ if (max_probability < 0xff) {
+ uint8_t *outptr = (uint8_t *)s->probabilities;
+ uint8_t *outend = outptr + sizeof(*s->probabilities) * history_bins;
+
+ while (outptr < outend && bytestream2_get_bytes_left(&s->gbyte)) {
+ int code = bytestream2_get_byte(&s->gbyte);
+
+ if (code > max_probability) {
+ int zcount = code - max_probability;
+
+ while (outptr < outend && zcount--)
+ *outptr++ = 0;
+ } else if (code) {
+ *outptr++ = code;
+ }
+ else {
+ break;
+ }
+ }
+
+ if (outptr < outend ||
+ (bytestream2_get_bytes_left(&s->gbyte) && bytestream2_get_byte(&s->gbyte)))
+ return AVERROR_INVALIDDATA;
+ } else if (bytestream2_get_bytes_left(&s->gbyte) > (int)sizeof(*s->probabilities) * history_bins) {
+ bytestream2_get_buffer(&s->gbyte, (uint8_t *)s->probabilities,
+ sizeof(*s->probabilities) * history_bins);
+ } else {
+ return AVERROR_INVALIDDATA;
+ }
+
+ for (p0 = 0; p0 < history_bins; p0++) {
+ int32_t sum_values = 0;
+
+ for (int i = 0; i < 256; i++)
+ s->summed_probabilities[p0][i] = sum_values += s->probabilities[p0][i];
+
+ if (sum_values) {
+ total_summed_probabilities += sum_values;
+
+ if (total_summed_probabilities > history_bins * MAX_BIN_BYTES)
+ return AVERROR_INVALIDDATA;
+
+ s->value_lookup[p0] = vlb;
+
+ for (int i = 0; i < 256; i++) {
+ int c = s->probabilities[p0][i];
+
+ while (c--)
+ *vlb++ = i;
+ }
+ }
+ }
+
+ if (bytestream2_get_bytes_left(&s->gbyte) < 4)
+ return AVERROR_INVALIDDATA;
+
+ chan = p0 = p1 = 0;
+ low = 0; high = 0xffffffff;
+ value = bytestream2_get_be32(&s->gbyte);
+
+ if (dst_r)
+ total_samples *= 2;
+
+ while (total_samples--) {
+ unsigned int mult, index, code;
+
+ if (!s->summed_probabilities[p0][255])
+ return AVERROR_INVALIDDATA;
+
+ mult = (high - low) / s->summed_probabilities[p0][255];
+
+ if (!mult) {
+ if (bytestream2_get_bytes_left(&s->gbyte) >= 4)
+ value = bytestream2_get_be32(&s->gbyte);
+
+ low = 0;
+ high = 0xffffffff;
+ mult = high / s->summed_probabilities[p0][255];
+
+ if (!mult)
+ return AVERROR_INVALIDDATA;
+ }
+
+ index = (value - low) / mult;
+
+ if (index >= s->summed_probabilities[p0][255])
+ return AVERROR_INVALIDDATA;
+
+ if (!dst_r) {
+ if ((*dst_l = code = s->value_lookup[p0][index]))
+ low += s->summed_probabilities[p0][code-1] * mult;
+
+ dst_l += 4;
+ } else {
+ if ((code = s->value_lookup[p0][index]))
+ low += s->summed_probabilities[p0][code-1] * mult;
+
+ if (chan) {
+ *dst_r = code;
+ dst_r += 4;
+ }
+ else {
+ *dst_l = code;
+ dst_l += 4;
+ }
+
+ chan ^= 1;
+ }
+
+ high = low + s->probabilities[p0][code] * mult - 1;
+ checksum += (checksum << 1) + code;
+
+ if (!dst_r) {
+ p0 = code & (history_bins-1);
+ } else {
+ p0 = p1;
+ p1 = code & (history_bins-1);
+ }
+
+ while (DSD_BYTE_READY(high, low) && bytestream2_get_bytes_left(&s->gbyte)) {
+ value = (value << 8) | bytestream2_get_byte(&s->gbyte);
+ high = (high << 8) | 0xff;
+ low <<= 8;
+ }
+ }
+
+ if (wv_check_crc(s, checksum, 0)) {
+ if (s->avctx->err_recognition & AV_EF_CRCCHECK)
+ return AVERROR_INVALIDDATA;
+
+ memset(dst_left, 0x69, s->samples * 4);
+
+ if (dst_r)
+ memset(dst_right, 0x69, s->samples * 4);
+ }
+
+ return 0;
+}
+
+static int wv_unpack_dsd_copy(WavpackFrameContext *s, uint8_t *dst_left, uint8_t *dst_right)
+{
+ uint8_t *dst_l = dst_left, *dst_r = dst_right;
+ int total_samples = s->samples;
+ uint32_t checksum = 0xFFFFFFFF;
+
+ if (bytestream2_get_bytes_left(&s->gbyte) != total_samples * (dst_r ? 2 : 1))
+ return AVERROR_INVALIDDATA;
+
+ while (total_samples--) {
+ checksum += (checksum << 1) + (*dst_l = bytestream2_get_byte(&s->gbyte));
+ dst_l += 4;
+
+ if (dst_r) {
+ checksum += (checksum << 1) + (*dst_r = bytestream2_get_byte(&s->gbyte));
+ dst_r += 4;
+ }
+ }
+
+ if (wv_check_crc(s, checksum, 0)) {
+ if (s->avctx->err_recognition & AV_EF_CRCCHECK)
+ return AVERROR_INVALIDDATA;
+
+ memset(dst_left, 0x69, s->samples * 4);
+
+ if (dst_r)
+ memset(dst_right, 0x69, s->samples * 4);
+ }
+
+ return 0;
+}
+
static inline int wv_unpack_stereo(WavpackFrameContext *s, GetBitContext *gb,
void *dst_l, void *dst_r, const int type)
{
int i, j, count = 0;
int last, t;
int A, B, L, L2, R, R2;
- int pos = s->pos;
- uint32_t crc = s->sc.crc;
- uint32_t crc_extra_bits = s->extra_sc.crc;
+ int pos = 0;
+ uint32_t crc = 0xFFFFFFFF;
+ uint32_t crc_extra_bits = 0xFFFFFFFF;
int16_t *dst16_l = dst_l;
int16_t *dst16_r = dst_r;
int32_t *dst32_l = dst_l;
count++;
} while (!last && count < s->samples);
- wv_reset_saved_context(s);
-
if (last && count < s->samples) {
int size = av_get_bytes_per_sample(type);
memset((uint8_t*)dst_l + count*size, 0, (s->samples-count)*size);
int i, j, count = 0;
int last, t;
int A, S, T;
- int pos = s->pos;
- uint32_t crc = s->sc.crc;
- uint32_t crc_extra_bits = s->extra_sc.crc;
+ int pos = 0;
+ uint32_t crc = 0xFFFFFFFF;
+ uint32_t crc_extra_bits = 0xFFFFFFFF;
int16_t *dst16 = dst;
int32_t *dst32 = dst;
float *dstfl = dst;
count++;
} while (!last && count < s->samples);
- wv_reset_saved_context(s);
-
if (last && count < s->samples) {
int size = av_get_bytes_per_sample(type);
memset((uint8_t*)dst + count*size, 0, (s->samples-count)*size);
return -1;
c->fdec_num++;
c->fdec[c->fdec_num - 1]->avctx = c->avctx;
- wv_reset_saved_context(c->fdec[c->fdec_num - 1]);
+
+ return 0;
+}
+
+static int wv_dsd_reset(WavpackContext *s, int channels)
+{
+ int i;
+
+ s->dsdctx = NULL;
+ s->dsd_channels = 0;
+ av_buffer_unref(&s->dsd_ref);
+
+ if (!channels)
+ return 0;
+
+ if (channels > INT_MAX / sizeof(*s->dsdctx))
+ return AVERROR(EINVAL);
+
+ s->dsd_ref = av_buffer_allocz(channels * sizeof(*s->dsdctx));
+ if (!s->dsd_ref)
+ return AVERROR(ENOMEM);
+ s->dsdctx = (DSDContext*)s->dsd_ref->data;
+ s->dsd_channels = channels;
+
+ for (i = 0; i < channels; i++)
+ memset(s->dsdctx[i].buf, 0x69, sizeof(s->dsdctx[i].buf));
return 0;
}
#if HAVE_THREADS
-static int init_thread_copy(AVCodecContext *avctx)
+static int update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
{
- WavpackContext *s = avctx->priv_data;
- s->avctx = avctx;
+ WavpackContext *fsrc = src->priv_data;
+ WavpackContext *fdst = dst->priv_data;
+ int ret;
+
+ if (dst == src)
+ return 0;
+
+ ff_thread_release_buffer(dst, &fdst->curr_frame);
+ if (fsrc->curr_frame.f->data[0]) {
+ if ((ret = ff_thread_ref_frame(&fdst->curr_frame, &fsrc->curr_frame)) < 0)
+ return ret;
+ }
+
+ fdst->dsdctx = NULL;
+ fdst->dsd_channels = 0;
+ ret = av_buffer_replace(&fdst->dsd_ref, fsrc->dsd_ref);
+ if (ret < 0)
+ return ret;
+ if (fsrc->dsd_ref) {
+ fdst->dsdctx = (DSDContext*)fdst->dsd_ref->data;
+ fdst->dsd_channels = fsrc->dsd_channels;
+ }
+
return 0;
}
#endif
s->fdec_num = 0;
+ s->curr_frame.f = av_frame_alloc();
+ s->prev_frame.f = av_frame_alloc();
+
+ if (!s->curr_frame.f || !s->prev_frame.f)
+ return AVERROR(ENOMEM);
+
+ ff_init_dsd_data();
+
return 0;
}
static av_cold int wavpack_decode_end(AVCodecContext *avctx)
{
WavpackContext *s = avctx->priv_data;
- int i;
- for (i = 0; i < s->fdec_num; i++)
+ for (int i = 0; i < s->fdec_num; i++)
av_freep(&s->fdec[i]);
s->fdec_num = 0;
+ ff_thread_release_buffer(avctx, &s->curr_frame);
+ av_frame_free(&s->curr_frame.f);
+
+ ff_thread_release_buffer(avctx, &s->prev_frame);
+ av_frame_free(&s->prev_frame.f);
+
+ av_buffer_unref(&s->dsd_ref);
+
return 0;
}
static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
- AVFrame *frame, const uint8_t *buf, int buf_size)
+ const uint8_t *buf, int buf_size)
{
WavpackContext *wc = avctx->priv_data;
- ThreadFrame tframe = { .f = frame };
WavpackFrameContext *s;
GetByteContext gb;
+ enum AVSampleFormat sample_fmt;
void *samples_l = NULL, *samples_r = NULL;
int ret;
int got_terms = 0, got_weights = 0, got_samples = 0,
- got_entropy = 0, got_bs = 0, got_float = 0, got_hybrid = 0;
+ got_entropy = 0, got_pcm = 0, got_float = 0, got_hybrid = 0;
+ int got_dsd = 0;
int i, j, id, size, ssize, weights, t;
- int bpp, chan = 0, chmask = 0, orig_bpp, sample_rate = 0;
+ int bpp, chan = 0, orig_bpp, sample_rate = 0, rate_x = 1, dsd_mode = 0;
int multiblock;
+ uint64_t chmask = 0;
if (block_no >= wc->fdec_num && wv_alloc_frame_context(wc) < 0) {
av_log(avctx, AV_LOG_ERROR, "Error creating frame decode context\n");
return AVERROR_INVALIDDATA;
}
s->frame_flags = bytestream2_get_le32(&gb);
- bpp = av_get_bytes_per_sample(avctx->sample_fmt);
+
+ if (s->frame_flags & (WV_FLOAT_DATA | WV_DSD_DATA))
+ sample_fmt = AV_SAMPLE_FMT_FLTP;
+ else if ((s->frame_flags & 0x03) <= 1)
+ sample_fmt = AV_SAMPLE_FMT_S16P;
+ else
+ sample_fmt = AV_SAMPLE_FMT_S32P;
+
+ if (wc->ch_offset && avctx->sample_fmt != sample_fmt)
+ return AVERROR_INVALIDDATA;
+
+ bpp = av_get_bytes_per_sample(sample_fmt);
orig_bpp = ((s->frame_flags & 0x03) + 1) << 3;
multiblock = (s->frame_flags & WV_SINGLE_BLOCK) != WV_SINGLE_BLOCK;
while (bytestream2_get_bytes_left(&gb)) {
id = bytestream2_get_byte(&gb);
size = bytestream2_get_byte(&gb);
- if (id & WP_IDF_LONG) {
- size |= (bytestream2_get_byte(&gb)) << 8;
- size |= (bytestream2_get_byte(&gb)) << 16;
- }
+ if (id & WP_IDF_LONG)
+ size |= (bytestream2_get_le16u(&gb)) << 8;
size <<= 1; // size is specified in words
ssize = size;
if (id & WP_IDF_ODD)
bytestream2_skip(&gb, 1);
break;
case WP_ID_DATA:
- s->sc.offset = bytestream2_tell(&gb);
- s->sc.size = size * 8;
if ((ret = init_get_bits8(&s->gb, gb.buffer, size)) < 0)
return ret;
- s->data_size = size * 8;
bytestream2_skip(&gb, size);
- got_bs = 1;
+ got_pcm = 1;
+ break;
+ case WP_ID_DSD_DATA:
+ if (size < 2) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid DSD_DATA, size = %i\n",
+ size);
+ bytestream2_skip(&gb, ssize);
+ continue;
+ }
+ rate_x = bytestream2_get_byte(&gb);
+ if (rate_x > 30)
+ return AVERROR_INVALIDDATA;
+ rate_x = 1 << rate_x;
+ dsd_mode = bytestream2_get_byte(&gb);
+ if (dsd_mode && dsd_mode != 1 && dsd_mode != 3) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid DSD encoding mode: %d\n",
+ dsd_mode);
+ return AVERROR_INVALIDDATA;
+ }
+ bytestream2_init(&s->gbyte, gb.buffer, size-2);
+ bytestream2_skip(&gb, size-2);
+ got_dsd = 1;
break;
case WP_ID_EXTRABITS:
if (size <= 4) {
bytestream2_skip(&gb, size);
continue;
}
- s->extra_sc.offset = bytestream2_tell(&gb);
- s->extra_sc.size = size * 8;
if ((ret = init_get_bits8(&s->gb_extra_bits, gb.buffer, size)) < 0)
return ret;
s->crc_extra_bits = get_bits_long(&s->gb_extra_bits, 32);
bytestream2_skip(&gb, 1);
}
- if (!got_terms) {
- av_log(avctx, AV_LOG_ERROR, "No block with decorrelation terms\n");
- return AVERROR_INVALIDDATA;
- }
- if (!got_weights) {
- av_log(avctx, AV_LOG_ERROR, "No block with decorrelation weights\n");
- return AVERROR_INVALIDDATA;
- }
- if (!got_samples) {
- av_log(avctx, AV_LOG_ERROR, "No block with decorrelation samples\n");
- return AVERROR_INVALIDDATA;
- }
- if (!got_entropy) {
- av_log(avctx, AV_LOG_ERROR, "No block with entropy info\n");
- return AVERROR_INVALIDDATA;
- }
- if (s->hybrid && !got_hybrid) {
- av_log(avctx, AV_LOG_ERROR, "Hybrid config not found\n");
- return AVERROR_INVALIDDATA;
+ if (got_pcm) {
+ if (!got_terms) {
+ av_log(avctx, AV_LOG_ERROR, "No block with decorrelation terms\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (!got_weights) {
+ av_log(avctx, AV_LOG_ERROR, "No block with decorrelation weights\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (!got_samples) {
+ av_log(avctx, AV_LOG_ERROR, "No block with decorrelation samples\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (!got_entropy) {
+ av_log(avctx, AV_LOG_ERROR, "No block with entropy info\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (s->hybrid && !got_hybrid) {
+ av_log(avctx, AV_LOG_ERROR, "Hybrid config not found\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (!got_float && sample_fmt == AV_SAMPLE_FMT_FLTP) {
+ av_log(avctx, AV_LOG_ERROR, "Float information not found\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (s->got_extra_bits && sample_fmt != AV_SAMPLE_FMT_FLTP) {
+ const int size = get_bits_left(&s->gb_extra_bits);
+ const int wanted = s->samples * s->extra_bits << s->stereo_in;
+ if (size < wanted) {
+ av_log(avctx, AV_LOG_ERROR, "Too small EXTRABITS\n");
+ s->got_extra_bits = 0;
+ }
+ }
}
- if (!got_bs) {
+
+ if (!got_pcm && !got_dsd) {
av_log(avctx, AV_LOG_ERROR, "Packed samples not found\n");
return AVERROR_INVALIDDATA;
}
- if (!got_float && avctx->sample_fmt == AV_SAMPLE_FMT_FLTP) {
- av_log(avctx, AV_LOG_ERROR, "Float information not found\n");
- return AVERROR_INVALIDDATA;
- }
- if (s->got_extra_bits && avctx->sample_fmt != AV_SAMPLE_FMT_FLTP) {
- const int size = get_bits_left(&s->gb_extra_bits);
- const int wanted = s->samples * s->extra_bits << s->stereo_in;
- if (size < wanted) {
- av_log(avctx, AV_LOG_ERROR, "Too small EXTRABITS\n");
- s->got_extra_bits = 0;
- }
+
+ if ((got_pcm && wc->modulation != MODULATION_PCM) ||
+ (got_dsd && wc->modulation != MODULATION_DSD)) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid PCM/DSD mix encountered\n");
+ return AVERROR_INVALIDDATA;
}
if (!wc->ch_offset) {
+ int new_channels = avctx->channels;
+ uint64_t new_chmask = avctx->channel_layout;
+ int new_samplerate;
int sr = (s->frame_flags >> 23) & 0xf;
if (sr == 0xf) {
if (!sample_rate) {
av_log(avctx, AV_LOG_ERROR, "Custom sample rate missing.\n");
return AVERROR_INVALIDDATA;
}
- avctx->sample_rate = sample_rate;
+ new_samplerate = sample_rate;
} else
- avctx->sample_rate = wv_rates[sr];
+ new_samplerate = wv_rates[sr];
+
+ if (new_samplerate * (uint64_t)rate_x > INT_MAX)
+ return AVERROR_INVALIDDATA;
+ new_samplerate *= rate_x;
if (multiblock) {
if (chan)
- avctx->channels = chan;
+ new_channels = chan;
if (chmask)
- avctx->channel_layout = chmask;
+ new_chmask = chmask;
} else {
- avctx->channels = s->stereo ? 2 : 1;
- avctx->channel_layout = s->stereo ? AV_CH_LAYOUT_STEREO :
- AV_CH_LAYOUT_MONO;
+ new_channels = s->stereo ? 2 : 1;
+ new_chmask = s->stereo ? AV_CH_LAYOUT_STEREO :
+ AV_CH_LAYOUT_MONO;
}
+ if (new_chmask &&
+ av_get_channel_layout_nb_channels(new_chmask) != new_channels) {
+ av_log(avctx, AV_LOG_ERROR, "Channel mask does not match the channel count\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ /* clear DSD state if stream properties change */
+ if (new_channels != wc->dsd_channels ||
+ new_chmask != avctx->channel_layout ||
+ new_samplerate != avctx->sample_rate ||
+ !!got_dsd != !!wc->dsdctx) {
+ ret = wv_dsd_reset(wc, got_dsd ? new_channels : 0);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Error reinitializing the DSD context\n");
+ return ret;
+ }
+ ff_thread_release_buffer(avctx, &wc->curr_frame);
+ }
+ avctx->channels = new_channels;
+ avctx->channel_layout = new_chmask;
+ avctx->sample_rate = new_samplerate;
+ avctx->sample_fmt = sample_fmt;
+ avctx->bits_per_raw_sample = orig_bpp;
+
+ ff_thread_release_buffer(avctx, &wc->prev_frame);
+ FFSWAP(ThreadFrame, wc->curr_frame, wc->prev_frame);
+
/* get output buffer */
- frame->nb_samples = s->samples + 1;
- if ((ret = ff_thread_get_buffer(avctx, &tframe, 0)) < 0)
+ wc->curr_frame.f->nb_samples = s->samples;
+ if ((ret = ff_thread_get_buffer(avctx, &wc->curr_frame, AV_GET_BUFFER_FLAG_REF)) < 0)
return ret;
- frame->nb_samples = s->samples;
+
+ wc->frame = wc->curr_frame.f;
+ ff_thread_finish_setup(avctx);
}
if (wc->ch_offset + s->stereo >= avctx->channels) {
return ((avctx->err_recognition & AV_EF_EXPLODE) || !wc->ch_offset) ? AVERROR_INVALIDDATA : 0;
}
- samples_l = frame->extended_data[wc->ch_offset];
+ samples_l = wc->frame->extended_data[wc->ch_offset];
if (s->stereo)
- samples_r = frame->extended_data[wc->ch_offset + 1];
+ samples_r = wc->frame->extended_data[wc->ch_offset + 1];
wc->ch_offset += 1 + s->stereo;
if (s->stereo_in) {
- ret = wv_unpack_stereo(s, &s->gb, samples_l, samples_r, avctx->sample_fmt);
+ if (got_dsd) {
+ if (dsd_mode == 3) {
+ ret = wv_unpack_dsd_high(s, samples_l, samples_r);
+ } else if (dsd_mode == 1) {
+ ret = wv_unpack_dsd_fast(s, samples_l, samples_r);
+ } else {
+ ret = wv_unpack_dsd_copy(s, samples_l, samples_r);
+ }
+ } else {
+ ret = wv_unpack_stereo(s, &s->gb, samples_l, samples_r, avctx->sample_fmt);
+ }
if (ret < 0)
return ret;
} else {
- ret = wv_unpack_mono(s, &s->gb, samples_l, avctx->sample_fmt);
+ if (got_dsd) {
+ if (dsd_mode == 3) {
+ ret = wv_unpack_dsd_high(s, samples_l, NULL);
+ } else if (dsd_mode == 1) {
+ ret = wv_unpack_dsd_fast(s, samples_l, NULL);
+ } else {
+ ret = wv_unpack_dsd_copy(s, samples_l, NULL);
+ }
+ } else {
+ ret = wv_unpack_mono(s, &s->gb, samples_l, avctx->sample_fmt);
+ }
if (ret < 0)
return ret;
static void wavpack_decode_flush(AVCodecContext *avctx)
{
WavpackContext *s = avctx->priv_data;
- int i;
- for (i = 0; i < s->fdec_num; i++)
- wv_reset_saved_context(s->fdec[i]);
+ wv_dsd_reset(s, 0);
+}
+
+static int dsd_channel(AVCodecContext *avctx, void *frmptr, int jobnr, int threadnr)
+{
+ WavpackContext *s = avctx->priv_data;
+ AVFrame *frame = frmptr;
+
+ ff_dsd2pcm_translate (&s->dsdctx [jobnr], s->samples, 0,
+ (uint8_t *)frame->extended_data[jobnr], 4,
+ (float *)frame->extended_data[jobnr], 1);
+
+ return 0;
}
static int wavpack_decode_frame(AVCodecContext *avctx, void *data,
WavpackContext *s = avctx->priv_data;
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
- AVFrame *frame = data;
int frame_size, ret, frame_flags;
if (avpkt->size <= WV_HEADER_SIZE)
return AVERROR_INVALIDDATA;
+ s->frame = NULL;
s->block = 0;
s->ch_offset = 0;
return AVERROR_INVALIDDATA;
}
- if (frame_flags & 0x80) {
- avctx->sample_fmt = AV_SAMPLE_FMT_FLTP;
- } else if ((frame_flags & 0x03) <= 1) {
- avctx->sample_fmt = AV_SAMPLE_FMT_S16P;
- } else {
- avctx->sample_fmt = AV_SAMPLE_FMT_S32P;
- avctx->bits_per_raw_sample = ((frame_flags & 0x03) + 1) << 3;
- }
+ s->modulation = (frame_flags & WV_DSD_DATA) ? MODULATION_DSD : MODULATION_PCM;
- while (buf_size > 0) {
- if (buf_size <= WV_HEADER_SIZE)
- break;
+ while (buf_size > WV_HEADER_SIZE) {
frame_size = AV_RL32(buf + 4) - 12;
buf += 20;
buf_size -= 20;
av_log(avctx, AV_LOG_ERROR,
"Block %d has invalid size (size %d vs. %d bytes left)\n",
s->block, frame_size, buf_size);
- wavpack_decode_flush(avctx);
- return AVERROR_INVALIDDATA;
- }
- if ((ret = wavpack_decode_block(avctx, s->block,
- frame, buf, frame_size)) < 0) {
- wavpack_decode_flush(avctx);
- return ret;
+ ret = AVERROR_INVALIDDATA;
+ goto error;
}
+ if ((ret = wavpack_decode_block(avctx, s->block, buf, frame_size)) < 0)
+ goto error;
s->block++;
buf += frame_size;
buf_size -= frame_size;
if (s->ch_offset != avctx->channels) {
av_log(avctx, AV_LOG_ERROR, "Not enough channels coded in a packet.\n");
- return AVERROR_INVALIDDATA;
+ ret = AVERROR_INVALIDDATA;
+ goto error;
}
+ ff_thread_await_progress(&s->prev_frame, INT_MAX, 0);
+ ff_thread_release_buffer(avctx, &s->prev_frame);
+
+ if (s->modulation == MODULATION_DSD)
+ avctx->execute2(avctx, dsd_channel, s->frame, NULL, avctx->channels);
+
+ ff_thread_report_progress(&s->curr_frame, INT_MAX, 0);
+
+ if ((ret = av_frame_ref(data, s->frame)) < 0)
+ return ret;
+
*got_frame_ptr = 1;
return avpkt->size;
+
+error:
+ if (s->frame) {
+ ff_thread_await_progress(&s->prev_frame, INT_MAX, 0);
+ ff_thread_release_buffer(avctx, &s->prev_frame);
+ ff_thread_report_progress(&s->curr_frame, INT_MAX, 0);
+ }
+
+ return ret;
}
-AVCodec ff_wavpack_decoder = {
+const AVCodec ff_wavpack_decoder = {
.name = "wavpack",
.long_name = NULL_IF_CONFIG_SMALL("WavPack"),
.type = AVMEDIA_TYPE_AUDIO,
.close = wavpack_decode_end,
.decode = wavpack_decode_frame,
.flush = wavpack_decode_flush,
- .init_thread_copy = ONLY_IF_THREADS_ENABLED(init_thread_copy),
- .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
+ .update_thread_context = ONLY_IF_THREADS_ENABLED(update_thread_context),
+ .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS |
+ AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_CHANNEL_CONF,
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
+ FF_CODEC_CAP_ALLOCATE_PROGRESS,
};
projects / ffmpeg / blobdiff