mirror of
https://github.com/FFmpeg/FFmpeg.git
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Split Musepack decoder into SV7 decoder and synth core
(for upcoming SV8 decoder) Originally committed as revision 10905 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov
parent
76c443c6d4
commit
24e649afe3
@ -114,7 +114,7 @@ OBJS-$(CONFIG_MP2_ENCODER) += mpegaudioenc.o mpegaudio.o mpegaudioda
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OBJS-$(CONFIG_MP3_DECODER) += mpegaudiodec.o mpegaudiodecheader.o mpegaudio.o mpegaudiodata.o
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OBJS-$(CONFIG_MP3_DECODER) += mpegaudiodec.o mpegaudiodecheader.o mpegaudio.o mpegaudiodata.o
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OBJS-$(CONFIG_MP3ADU_DECODER) += mpegaudiodec.o mpegaudiodecheader.o mpegaudio.o mpegaudiodata.o
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OBJS-$(CONFIG_MP3ADU_DECODER) += mpegaudiodec.o mpegaudiodecheader.o mpegaudio.o mpegaudiodata.o
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OBJS-$(CONFIG_MP3ON4_DECODER) += mpegaudiodec.o mpegaudiodecheader.o mpegaudio.o mpegaudiodata.o
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OBJS-$(CONFIG_MP3ON4_DECODER) += mpegaudiodec.o mpegaudiodecheader.o mpegaudio.o mpegaudiodata.o
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OBJS-$(CONFIG_MPC7_DECODER) += mpc.o mpegaudiodec.o mpegaudiodecheader.o mpegaudio.o mpegaudiodata.o
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OBJS-$(CONFIG_MPC7_DECODER) += mpc7.o mpc.o mpegaudiodec.o mpegaudiodecheader.o mpegaudio.o mpegaudiodata.o
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OBJS-$(CONFIG_MPEG1VIDEO_ENCODER) += mpeg12enc.o mpeg12data.o mpegvideo_enc.o motion_est.o ratecontrol.o
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OBJS-$(CONFIG_MPEG1VIDEO_ENCODER) += mpeg12enc.o mpeg12data.o mpegvideo_enc.o motion_est.o ratecontrol.o
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OBJS-$(CONFIG_MPEG2VIDEO_ENCODER) += mpeg12enc.o mpeg12data.o mpegvideo_enc.o motion_est.o ratecontrol.o
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OBJS-$(CONFIG_MPEG2VIDEO_ENCODER) += mpeg12enc.o mpeg12data.o mpegvideo_enc.o motion_est.o ratecontrol.o
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OBJS-$(CONFIG_MPEG4_DECODER) += h263dec.o h263.o
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OBJS-$(CONFIG_MPEG4_DECODER) += h263dec.o h263.o
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273
libavcodec/mpc.c
273
libavcodec/mpc.c
@ -1,5 +1,5 @@
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/*
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/*
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* Musepack decoder
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* Musepack decoder core
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* Copyright (c) 2006 Konstantin Shishkov
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* Copyright (c) 2006 Konstantin Shishkov
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*
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*
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* This file is part of FFmpeg.
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* This file is part of FFmpeg.
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@ -20,7 +20,7 @@
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*/
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*/
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/**
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/**
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* @file mpc.c Musepack decoder
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* @file mpc.c Musepack decoder core
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* MPEG Audio Layer 1/2 -like codec with frames of 1152 samples
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* MPEG Audio Layer 1/2 -like codec with frames of 1152 samples
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* divided into 32 subbands.
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* divided into 32 subbands.
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*/
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*/
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@ -35,108 +35,18 @@
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#endif
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#endif
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#include "mpegaudio.h"
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#include "mpegaudio.h"
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#include "mpc.h"
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#include "mpcdata.h"
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#include "mpcdata.h"
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#define BANDS 32
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#define SAMPLES_PER_BAND 36
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#define MPC_FRAME_SIZE (BANDS * SAMPLES_PER_BAND)
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static VLC scfi_vlc, dscf_vlc, hdr_vlc, quant_vlc[MPC7_QUANT_VLC_TABLES][2];
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static DECLARE_ALIGNED_16(MPA_INT, mpa_window[512]);
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static DECLARE_ALIGNED_16(MPA_INT, mpa_window[512]);
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typedef struct {
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void ff_mpc_init()
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DSPContext dsp;
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int IS, MSS, gapless;
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int lastframelen, bands;
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int oldDSCF[2][BANDS];
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AVRandomState rnd;
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int frames_to_skip;
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/* for synthesis */
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DECLARE_ALIGNED_16(MPA_INT, synth_buf[MPA_MAX_CHANNELS][512*2]);
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int synth_buf_offset[MPA_MAX_CHANNELS];
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DECLARE_ALIGNED_16(int32_t, sb_samples[MPA_MAX_CHANNELS][36][SBLIMIT]);
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} MPCContext;
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/** Subband structure - hold all variables for each subband */
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typedef struct {
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int msf; ///< mid-stereo flag
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int res[2];
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int scfi[2];
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int scf_idx[2][3];
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int Q[2];
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}Band;
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static int mpc7_decode_init(AVCodecContext * avctx)
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{
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{
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int i, j;
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MPCContext *c = avctx->priv_data;
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GetBitContext gb;
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uint8_t buf[16];
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static int vlc_inited = 0;
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if(avctx->extradata_size < 16){
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av_log(avctx, AV_LOG_ERROR, "Too small extradata size (%i)!\n", avctx->extradata_size);
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return -1;
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}
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memset(c->oldDSCF, 0, sizeof(c->oldDSCF));
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av_init_random(0xDEADBEEF, &c->rnd);
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dsputil_init(&c->dsp, avctx);
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c->dsp.bswap_buf(buf, avctx->extradata, 4);
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ff_mpa_synth_init(mpa_window);
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ff_mpa_synth_init(mpa_window);
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init_get_bits(&gb, buf, 128);
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c->IS = get_bits1(&gb);
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c->MSS = get_bits1(&gb);
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c->bands = get_bits(&gb, 6);
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if(c->bands >= BANDS){
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av_log(avctx, AV_LOG_ERROR, "Too many bands: %i\n", c->bands);
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return -1;
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}
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skip_bits(&gb, 88);
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c->gapless = get_bits1(&gb);
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c->lastframelen = get_bits(&gb, 11);
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av_log(avctx, AV_LOG_DEBUG, "IS: %d, MSS: %d, TG: %d, LFL: %d, bands: %d\n",
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c->IS, c->MSS, c->gapless, c->lastframelen, c->bands);
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c->frames_to_skip = 0;
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if(vlc_inited) return 0;
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av_log(avctx, AV_LOG_DEBUG, "Initing VLC\n");
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if(init_vlc(&scfi_vlc, MPC7_SCFI_BITS, MPC7_SCFI_SIZE,
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&mpc7_scfi[1], 2, 1,
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&mpc7_scfi[0], 2, 1, INIT_VLC_USE_STATIC)){
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av_log(avctx, AV_LOG_ERROR, "Cannot init SCFI VLC\n");
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return -1;
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}
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if(init_vlc(&dscf_vlc, MPC7_DSCF_BITS, MPC7_DSCF_SIZE,
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&mpc7_dscf[1], 2, 1,
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&mpc7_dscf[0], 2, 1, INIT_VLC_USE_STATIC)){
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av_log(avctx, AV_LOG_ERROR, "Cannot init DSCF VLC\n");
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return -1;
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}
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if(init_vlc(&hdr_vlc, MPC7_HDR_BITS, MPC7_HDR_SIZE,
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&mpc7_hdr[1], 2, 1,
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&mpc7_hdr[0], 2, 1, INIT_VLC_USE_STATIC)){
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av_log(avctx, AV_LOG_ERROR, "Cannot init HDR VLC\n");
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return -1;
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}
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for(i = 0; i < MPC7_QUANT_VLC_TABLES; i++){
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for(j = 0; j < 2; j++){
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if(init_vlc(&quant_vlc[i][j], 9, mpc7_quant_vlc_sizes[i],
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&mpc7_quant_vlc[i][j][1], 4, 2,
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&mpc7_quant_vlc[i][j][0], 4, 2, INIT_VLC_USE_STATIC)){
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av_log(avctx, AV_LOG_ERROR, "Cannot init QUANT VLC %i,%i\n",i,j);
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return -1;
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}
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}
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}
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vlc_inited = 1;
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return 0;
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}
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}
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/**
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/**
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* Process decoded Musepack data and produce PCM
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* Process decoded Musepack data and produce PCM
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* @todo make it available for MPC8 and MPC6
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*/
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*/
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static void mpc_synth(MPCContext *c, int16_t *out)
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static void mpc_synth(MPCContext *c, int16_t *out)
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{
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{
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@ -158,147 +68,29 @@ static void mpc_synth(MPCContext *c, int16_t *out)
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*out++=samples[i];
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*out++=samples[i];
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}
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}
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/**
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void ff_mpc_dequantize_and_synth(MPCContext * c, int maxband, void *data)
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* Fill samples for given subband
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*/
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static inline void idx_to_quant(MPCContext *c, GetBitContext *gb, int idx, int *dst)
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{
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{
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int i, i1, t;
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int i, j, ch;
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switch(idx){
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Band *bands = c->bands;
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case -1:
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for(i = 0; i < SAMPLES_PER_BAND; i++){
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*dst++ = (av_random(&c->rnd) & 0x3FC) - 510;
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}
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break;
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case 1:
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i1 = get_bits1(gb);
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for(i = 0; i < SAMPLES_PER_BAND/3; i++){
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t = get_vlc2(gb, quant_vlc[0][i1].table, 9, 2);
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*dst++ = mpc_idx30[t];
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*dst++ = mpc_idx31[t];
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*dst++ = mpc_idx32[t];
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}
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break;
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case 2:
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i1 = get_bits1(gb);
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for(i = 0; i < SAMPLES_PER_BAND/2; i++){
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t = get_vlc2(gb, quant_vlc[1][i1].table, 9, 2);
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*dst++ = mpc_idx50[t];
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*dst++ = mpc_idx51[t];
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}
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break;
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case 3: case 4: case 5: case 6: case 7:
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i1 = get_bits1(gb);
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for(i = 0; i < SAMPLES_PER_BAND; i++)
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*dst++ = get_vlc2(gb, quant_vlc[idx-1][i1].table, 9, 2) - mpc7_quant_vlc_off[idx-1];
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break;
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case 8: case 9: case 10: case 11: case 12:
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case 13: case 14: case 15: case 16: case 17:
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t = (1 << (idx - 2)) - 1;
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for(i = 0; i < SAMPLES_PER_BAND; i++)
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*dst++ = get_bits(gb, idx - 1) - t;
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break;
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default: // case 0 and -2..-17
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return;
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}
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}
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static int mpc7_decode_frame(AVCodecContext * avctx,
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void *data, int *data_size,
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uint8_t * buf, int buf_size)
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{
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MPCContext *c = avctx->priv_data;
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GetBitContext gb;
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uint8_t *bits;
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int i, j, ch, t;
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int mb = -1;
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Band bands[BANDS];
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int Q[2][MPC_FRAME_SIZE];
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int off;
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int off;
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float mul;
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float mul;
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int bits_used, bits_avail;
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memset(bands, 0, sizeof(bands));
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if(buf_size <= 4){
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av_log(avctx, AV_LOG_ERROR, "Too small buffer passed (%i bytes)\n", buf_size);
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}
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bits = av_malloc(((buf_size - 1) & ~3) + FF_INPUT_BUFFER_PADDING_SIZE);
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c->dsp.bswap_buf(bits, buf + 4, (buf_size - 4) >> 2);
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init_get_bits(&gb, bits, (buf_size - 4)* 8);
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skip_bits(&gb, buf[0]);
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/* read subband indexes */
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for(i = 0; i <= c->bands; i++){
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for(ch = 0; ch < 2; ch++){
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if(i) t = get_vlc2(&gb, hdr_vlc.table, MPC7_HDR_BITS, 1) - 5;
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if(!i || (t == 4)) bands[i].res[ch] = get_bits(&gb, 4);
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else bands[i].res[ch] = bands[i-1].res[ch] + t;
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}
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if(bands[i].res[0] || bands[i].res[1]){
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mb = i;
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if(c->MSS) bands[i].msf = get_bits1(&gb);
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}
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}
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/* get scale indexes coding method */
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for(i = 0; i <= mb; i++)
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for(ch = 0; ch < 2; ch++)
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if(bands[i].res[ch]) bands[i].scfi[ch] = get_vlc2(&gb, scfi_vlc.table, MPC7_SCFI_BITS, 1);
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/* get scale indexes */
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for(i = 0; i <= mb; i++){
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for(ch = 0; ch < 2; ch++){
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if(bands[i].res[ch]){
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bands[i].scf_idx[ch][2] = c->oldDSCF[ch][i];
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t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
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bands[i].scf_idx[ch][0] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][2] + t);
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switch(bands[i].scfi[ch]){
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case 0:
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t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
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bands[i].scf_idx[ch][1] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][0] + t);
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t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
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bands[i].scf_idx[ch][2] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][1] + t);
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break;
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case 1:
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t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
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bands[i].scf_idx[ch][1] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][0] + t);
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bands[i].scf_idx[ch][2] = bands[i].scf_idx[ch][1];
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break;
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case 2:
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bands[i].scf_idx[ch][1] = bands[i].scf_idx[ch][0];
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t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
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bands[i].scf_idx[ch][2] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][1] + t);
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break;
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case 3:
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bands[i].scf_idx[ch][2] = bands[i].scf_idx[ch][1] = bands[i].scf_idx[ch][0];
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break;
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}
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c->oldDSCF[ch][i] = bands[i].scf_idx[ch][2];
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}
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}
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}
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/* get quantizers */
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memset(Q, 0, sizeof(Q));
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off = 0;
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for(i = 0; i < BANDS; i++, off += SAMPLES_PER_BAND)
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for(ch = 0; ch < 2; ch++)
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idx_to_quant(c, &gb, bands[i].res[ch], Q[ch] + off);
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/* dequantize */
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/* dequantize */
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memset(c->sb_samples, 0, sizeof(c->sb_samples));
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memset(c->sb_samples, 0, sizeof(c->sb_samples));
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off = 0;
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off = 0;
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for(i = 0; i <= mb; i++, off += SAMPLES_PER_BAND){
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for(i = 0; i <= maxband; i++, off += SAMPLES_PER_BAND){
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for(ch = 0; ch < 2; ch++){
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for(ch = 0; ch < 2; ch++){
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if(bands[i].res[ch]){
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if(bands[i].res[ch]){
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j = 0;
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j = 0;
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mul = mpc_CC[bands[i].res[ch]] * mpc7_SCF[bands[i].scf_idx[ch][0]];
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mul = mpc_CC[bands[i].res[ch]] * mpc_SCF[bands[i].scf_idx[ch][0]];
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for(; j < 12; j++)
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for(; j < 12; j++)
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c->sb_samples[ch][j][i] = mul * Q[ch][j + off];
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c->sb_samples[ch][j][i] = mul * c->Q[ch][j + off];
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mul = mpc_CC[bands[i].res[ch]] * mpc7_SCF[bands[i].scf_idx[ch][1]];
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mul = mpc_CC[bands[i].res[ch]] * mpc_SCF[bands[i].scf_idx[ch][1]];
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for(; j < 24; j++)
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for(; j < 24; j++)
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c->sb_samples[ch][j][i] = mul * Q[ch][j + off];
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c->sb_samples[ch][j][i] = mul * c->Q[ch][j + off];
|
||||||
mul = mpc_CC[bands[i].res[ch]] * mpc7_SCF[bands[i].scf_idx[ch][2]];
|
mul = mpc_CC[bands[i].res[ch]] * mpc_SCF[bands[i].scf_idx[ch][2]];
|
||||||
for(; j < 36; j++)
|
for(; j < 36; j++)
|
||||||
c->sb_samples[ch][j][i] = mul * Q[ch][j + off];
|
c->sb_samples[ch][j][i] = mul * c->Q[ch][j + off];
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
if(bands[i].msf){
|
if(bands[i].msf){
|
||||||
@ -313,41 +105,4 @@ static int mpc7_decode_frame(AVCodecContext * avctx,
|
|||||||
}
|
}
|
||||||
|
|
||||||
mpc_synth(c, data);
|
mpc_synth(c, data);
|
||||||
|
|
||||||
av_free(bits);
|
|
||||||
|
|
||||||
bits_used = get_bits_count(&gb);
|
|
||||||
bits_avail = (buf_size - 4) * 8;
|
|
||||||
if(!buf[1] && ((bits_avail < bits_used) || (bits_used + 32 <= bits_avail))){
|
|
||||||
av_log(NULL,0, "Error decoding frame: used %i of %i bits\n", bits_used, bits_avail);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
if(c->frames_to_skip){
|
|
||||||
c->frames_to_skip--;
|
|
||||||
*data_size = 0;
|
|
||||||
return buf_size;
|
|
||||||
}
|
|
||||||
*data_size = (buf[1] ? c->lastframelen : MPC_FRAME_SIZE) * 4;
|
|
||||||
|
|
||||||
return buf_size;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static void mpc7_decode_flush(AVCodecContext *avctx)
|
|
||||||
{
|
|
||||||
MPCContext *c = avctx->priv_data;
|
|
||||||
|
|
||||||
memset(c->oldDSCF, 0, sizeof(c->oldDSCF));
|
|
||||||
c->frames_to_skip = 32;
|
|
||||||
}
|
|
||||||
|
|
||||||
AVCodec mpc7_decoder = {
|
|
||||||
"mpc sv7",
|
|
||||||
CODEC_TYPE_AUDIO,
|
|
||||||
CODEC_ID_MUSEPACK7,
|
|
||||||
sizeof(MPCContext),
|
|
||||||
mpc7_decode_init,
|
|
||||||
NULL,
|
|
||||||
NULL,
|
|
||||||
mpc7_decode_frame,
|
|
||||||
.flush = mpc7_decode_flush,
|
|
||||||
};
|
|
||||||
|
|||||||
80
libavcodec/mpc.h
Normal file
80
libavcodec/mpc.h
Normal file
@ -0,0 +1,80 @@
|
|||||||
|
/*
|
||||||
|
* Musepack decoder
|
||||||
|
* Copyright (c) 2006 Konstantin Shishkov
|
||||||
|
*
|
||||||
|
* This file is part of FFmpeg.
|
||||||
|
*
|
||||||
|
* FFmpeg is free software; you can redistribute it and/or
|
||||||
|
* modify it under the terms of the GNU Lesser General Public
|
||||||
|
* License as published by the Free Software Foundation; either
|
||||||
|
* version 2.1 of the License, or (at your option) any later version.
|
||||||
|
*
|
||||||
|
* FFmpeg is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
* Lesser General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Lesser General Public
|
||||||
|
* License along with FFmpeg; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @file mpc.h Musepack decoder
|
||||||
|
* MPEG Audio Layer 1/2 -like codec with frames of 1152 samples
|
||||||
|
* divided into 32 subbands.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef FFMPEG_MPC_H
|
||||||
|
#define FFMPEG_MPC_H
|
||||||
|
|
||||||
|
#include "avcodec.h"
|
||||||
|
#include "bitstream.h"
|
||||||
|
#include "dsputil.h"
|
||||||
|
#include "random.h"
|
||||||
|
|
||||||
|
#ifdef CONFIG_MPEGAUDIO_HP
|
||||||
|
#define USE_HIGHPRECISION
|
||||||
|
#endif
|
||||||
|
#include "mpegaudio.h"
|
||||||
|
|
||||||
|
#include "mpcdata.h"
|
||||||
|
|
||||||
|
#define BANDS 32
|
||||||
|
#define SAMPLES_PER_BAND 36
|
||||||
|
#define MPC_FRAME_SIZE (BANDS * SAMPLES_PER_BAND)
|
||||||
|
|
||||||
|
/** Subband structure - hold all variables for each subband */
|
||||||
|
typedef struct {
|
||||||
|
int msf; ///< mid-stereo flag
|
||||||
|
int res[2];
|
||||||
|
int scfi[2];
|
||||||
|
int scf_idx[2][3];
|
||||||
|
int Q[2];
|
||||||
|
}Band;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
DSPContext dsp;
|
||||||
|
GetBitContext gb;
|
||||||
|
int IS, MSS, gapless;
|
||||||
|
int lastframelen;
|
||||||
|
int maxbands, last_max_band;
|
||||||
|
int last_bits_used;
|
||||||
|
int oldDSCF[2][BANDS];
|
||||||
|
Band bands[BANDS];
|
||||||
|
int Q[2][MPC_FRAME_SIZE];
|
||||||
|
int cur_frame, frames;
|
||||||
|
uint8_t *bits;
|
||||||
|
int buf_size;
|
||||||
|
AVRandomState rnd;
|
||||||
|
int frames_to_skip;
|
||||||
|
/* for synthesis */
|
||||||
|
DECLARE_ALIGNED_16(MPA_INT, synth_buf[MPA_MAX_CHANNELS][512*2]);
|
||||||
|
int synth_buf_offset[MPA_MAX_CHANNELS];
|
||||||
|
DECLARE_ALIGNED_16(int32_t, sb_samples[MPA_MAX_CHANNELS][36][SBLIMIT]);
|
||||||
|
} MPCContext;
|
||||||
|
|
||||||
|
extern void ff_mpc_init();
|
||||||
|
extern void ff_mpc_dequantize_and_synth(MPCContext *c, int maxband, void *dst);
|
||||||
|
|
||||||
|
#endif /* FFMPEG_MPC_H */
|
||||||
276
libavcodec/mpc7.c
Normal file
276
libavcodec/mpc7.c
Normal file
@ -0,0 +1,276 @@
|
|||||||
|
/*
|
||||||
|
* Musepack SV7 decoder
|
||||||
|
* Copyright (c) 2006 Konstantin Shishkov
|
||||||
|
*
|
||||||
|
* This file is part of FFmpeg.
|
||||||
|
*
|
||||||
|
* FFmpeg is free software; you can redistribute it and/or
|
||||||
|
* modify it under the terms of the GNU Lesser General Public
|
||||||
|
* License as published by the Free Software Foundation; either
|
||||||
|
* version 2.1 of the License, or (at your option) any later version.
|
||||||
|
*
|
||||||
|
* FFmpeg is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
* Lesser General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Lesser General Public
|
||||||
|
* License along with FFmpeg; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @file mpc7.c Musepack SV7 decoder
|
||||||
|
* MPEG Audio Layer 1/2 -like codec with frames of 1152 samples
|
||||||
|
* divided into 32 subbands.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "avcodec.h"
|
||||||
|
#include "bitstream.h"
|
||||||
|
#include "dsputil.h"
|
||||||
|
#include "random.h"
|
||||||
|
|
||||||
|
#ifdef CONFIG_MPEGAUDIO_HP
|
||||||
|
#define USE_HIGHPRECISION
|
||||||
|
#endif
|
||||||
|
#include "mpegaudio.h"
|
||||||
|
|
||||||
|
#include "mpc.h"
|
||||||
|
#include "mpc7data.h"
|
||||||
|
|
||||||
|
#define BANDS 32
|
||||||
|
#define SAMPLES_PER_BAND 36
|
||||||
|
#define MPC_FRAME_SIZE (BANDS * SAMPLES_PER_BAND)
|
||||||
|
|
||||||
|
static VLC scfi_vlc, dscf_vlc, hdr_vlc, quant_vlc[MPC7_QUANT_VLC_TABLES][2];
|
||||||
|
|
||||||
|
static int mpc7_decode_init(AVCodecContext * avctx)
|
||||||
|
{
|
||||||
|
int i, j;
|
||||||
|
MPCContext *c = avctx->priv_data;
|
||||||
|
GetBitContext gb;
|
||||||
|
uint8_t buf[16];
|
||||||
|
static int vlc_inited = 0;
|
||||||
|
|
||||||
|
if(avctx->extradata_size < 16){
|
||||||
|
av_log(avctx, AV_LOG_ERROR, "Too small extradata size (%i)!\n", avctx->extradata_size);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
memset(c->oldDSCF, 0, sizeof(c->oldDSCF));
|
||||||
|
av_init_random(0xDEADBEEF, &c->rnd);
|
||||||
|
dsputil_init(&c->dsp, avctx);
|
||||||
|
c->dsp.bswap_buf(buf, avctx->extradata, 4);
|
||||||
|
ff_mpc_init();
|
||||||
|
init_get_bits(&gb, buf, 128);
|
||||||
|
|
||||||
|
c->IS = get_bits1(&gb);
|
||||||
|
c->MSS = get_bits1(&gb);
|
||||||
|
c->maxbands = get_bits(&gb, 6);
|
||||||
|
if(c->maxbands >= BANDS){
|
||||||
|
av_log(avctx, AV_LOG_ERROR, "Too many bands: %i\n", c->maxbands);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
skip_bits(&gb, 88);
|
||||||
|
c->gapless = get_bits1(&gb);
|
||||||
|
c->lastframelen = get_bits(&gb, 11);
|
||||||
|
av_log(avctx, AV_LOG_DEBUG, "IS: %d, MSS: %d, TG: %d, LFL: %d, bands: %d\n",
|
||||||
|
c->IS, c->MSS, c->gapless, c->lastframelen, c->maxbands);
|
||||||
|
c->frames_to_skip = 0;
|
||||||
|
|
||||||
|
if(vlc_inited) return 0;
|
||||||
|
av_log(avctx, AV_LOG_DEBUG, "Initing VLC\n");
|
||||||
|
if(init_vlc(&scfi_vlc, MPC7_SCFI_BITS, MPC7_SCFI_SIZE,
|
||||||
|
&mpc7_scfi[1], 2, 1,
|
||||||
|
&mpc7_scfi[0], 2, 1, INIT_VLC_USE_STATIC)){
|
||||||
|
av_log(avctx, AV_LOG_ERROR, "Cannot init SCFI VLC\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
if(init_vlc(&dscf_vlc, MPC7_DSCF_BITS, MPC7_DSCF_SIZE,
|
||||||
|
&mpc7_dscf[1], 2, 1,
|
||||||
|
&mpc7_dscf[0], 2, 1, INIT_VLC_USE_STATIC)){
|
||||||
|
av_log(avctx, AV_LOG_ERROR, "Cannot init DSCF VLC\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
if(init_vlc(&hdr_vlc, MPC7_HDR_BITS, MPC7_HDR_SIZE,
|
||||||
|
&mpc7_hdr[1], 2, 1,
|
||||||
|
&mpc7_hdr[0], 2, 1, INIT_VLC_USE_STATIC)){
|
||||||
|
av_log(avctx, AV_LOG_ERROR, "Cannot init HDR VLC\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
for(i = 0; i < MPC7_QUANT_VLC_TABLES; i++){
|
||||||
|
for(j = 0; j < 2; j++){
|
||||||
|
if(init_vlc(&quant_vlc[i][j], 9, mpc7_quant_vlc_sizes[i],
|
||||||
|
&mpc7_quant_vlc[i][j][1], 4, 2,
|
||||||
|
&mpc7_quant_vlc[i][j][0], 4, 2, INIT_VLC_USE_STATIC)){
|
||||||
|
av_log(avctx, AV_LOG_ERROR, "Cannot init QUANT VLC %i,%i\n",i,j);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
vlc_inited = 1;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Fill samples for given subband
|
||||||
|
*/
|
||||||
|
static inline void idx_to_quant(MPCContext *c, GetBitContext *gb, int idx, int *dst)
|
||||||
|
{
|
||||||
|
int i, i1, t;
|
||||||
|
switch(idx){
|
||||||
|
case -1:
|
||||||
|
for(i = 0; i < SAMPLES_PER_BAND; i++){
|
||||||
|
*dst++ = (av_random(&c->rnd) & 0x3FC) - 510;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 1:
|
||||||
|
i1 = get_bits1(gb);
|
||||||
|
for(i = 0; i < SAMPLES_PER_BAND/3; i++){
|
||||||
|
t = get_vlc2(gb, quant_vlc[0][i1].table, 9, 2);
|
||||||
|
*dst++ = mpc7_idx30[t];
|
||||||
|
*dst++ = mpc7_idx31[t];
|
||||||
|
*dst++ = mpc7_idx32[t];
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 2:
|
||||||
|
i1 = get_bits1(gb);
|
||||||
|
for(i = 0; i < SAMPLES_PER_BAND/2; i++){
|
||||||
|
t = get_vlc2(gb, quant_vlc[1][i1].table, 9, 2);
|
||||||
|
*dst++ = mpc7_idx50[t];
|
||||||
|
*dst++ = mpc7_idx51[t];
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 3: case 4: case 5: case 6: case 7:
|
||||||
|
i1 = get_bits1(gb);
|
||||||
|
for(i = 0; i < SAMPLES_PER_BAND; i++)
|
||||||
|
*dst++ = get_vlc2(gb, quant_vlc[idx-1][i1].table, 9, 2) - mpc7_quant_vlc_off[idx-1];
|
||||||
|
break;
|
||||||
|
case 8: case 9: case 10: case 11: case 12:
|
||||||
|
case 13: case 14: case 15: case 16: case 17:
|
||||||
|
t = (1 << (idx - 2)) - 1;
|
||||||
|
for(i = 0; i < SAMPLES_PER_BAND; i++)
|
||||||
|
*dst++ = get_bits(gb, idx - 1) - t;
|
||||||
|
break;
|
||||||
|
default: // case 0 and -2..-17
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static int mpc7_decode_frame(AVCodecContext * avctx,
|
||||||
|
void *data, int *data_size,
|
||||||
|
uint8_t * buf, int buf_size)
|
||||||
|
{
|
||||||
|
MPCContext *c = avctx->priv_data;
|
||||||
|
GetBitContext gb;
|
||||||
|
uint8_t *bits;
|
||||||
|
int i, ch, t;
|
||||||
|
int mb = -1;
|
||||||
|
Band *bands = c->bands;
|
||||||
|
int off;
|
||||||
|
int bits_used, bits_avail;
|
||||||
|
|
||||||
|
memset(bands, 0, sizeof(bands));
|
||||||
|
if(buf_size <= 4){
|
||||||
|
av_log(avctx, AV_LOG_ERROR, "Too small buffer passed (%i bytes)\n", buf_size);
|
||||||
|
}
|
||||||
|
|
||||||
|
bits = av_malloc(((buf_size - 1) & ~3) + FF_INPUT_BUFFER_PADDING_SIZE);
|
||||||
|
c->dsp.bswap_buf(bits, buf + 4, (buf_size - 4) >> 2);
|
||||||
|
init_get_bits(&gb, bits, (buf_size - 4)* 8);
|
||||||
|
skip_bits(&gb, buf[0]);
|
||||||
|
|
||||||
|
/* read subband indexes */
|
||||||
|
for(i = 0; i <= c->maxbands; i++){
|
||||||
|
for(ch = 0; ch < 2; ch++){
|
||||||
|
if(i) t = get_vlc2(&gb, hdr_vlc.table, MPC7_HDR_BITS, 1) - 5;
|
||||||
|
if(!i || (t == 4)) bands[i].res[ch] = get_bits(&gb, 4);
|
||||||
|
else bands[i].res[ch] = bands[i-1].res[ch] + t;
|
||||||
|
}
|
||||||
|
|
||||||
|
if(bands[i].res[0] || bands[i].res[1]){
|
||||||
|
mb = i;
|
||||||
|
if(c->MSS) bands[i].msf = get_bits1(&gb);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
/* get scale indexes coding method */
|
||||||
|
for(i = 0; i <= mb; i++)
|
||||||
|
for(ch = 0; ch < 2; ch++)
|
||||||
|
if(bands[i].res[ch]) bands[i].scfi[ch] = get_vlc2(&gb, scfi_vlc.table, MPC7_SCFI_BITS, 1);
|
||||||
|
/* get scale indexes */
|
||||||
|
for(i = 0; i <= mb; i++){
|
||||||
|
for(ch = 0; ch < 2; ch++){
|
||||||
|
if(bands[i].res[ch]){
|
||||||
|
bands[i].scf_idx[ch][2] = c->oldDSCF[ch][i];
|
||||||
|
t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
|
||||||
|
bands[i].scf_idx[ch][0] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][2] + t);
|
||||||
|
switch(bands[i].scfi[ch]){
|
||||||
|
case 0:
|
||||||
|
t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
|
||||||
|
bands[i].scf_idx[ch][1] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][0] + t);
|
||||||
|
t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
|
||||||
|
bands[i].scf_idx[ch][2] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][1] + t);
|
||||||
|
break;
|
||||||
|
case 1:
|
||||||
|
t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
|
||||||
|
bands[i].scf_idx[ch][1] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][0] + t);
|
||||||
|
bands[i].scf_idx[ch][2] = bands[i].scf_idx[ch][1];
|
||||||
|
break;
|
||||||
|
case 2:
|
||||||
|
bands[i].scf_idx[ch][1] = bands[i].scf_idx[ch][0];
|
||||||
|
t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
|
||||||
|
bands[i].scf_idx[ch][2] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][1] + t);
|
||||||
|
break;
|
||||||
|
case 3:
|
||||||
|
bands[i].scf_idx[ch][2] = bands[i].scf_idx[ch][1] = bands[i].scf_idx[ch][0];
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
c->oldDSCF[ch][i] = bands[i].scf_idx[ch][2];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
/* get quantizers */
|
||||||
|
memset(c->Q, 0, sizeof(c->Q));
|
||||||
|
off = 0;
|
||||||
|
for(i = 0; i < BANDS; i++, off += SAMPLES_PER_BAND)
|
||||||
|
for(ch = 0; ch < 2; ch++)
|
||||||
|
idx_to_quant(c, &gb, bands[i].res[ch], c->Q[ch] + off);
|
||||||
|
|
||||||
|
ff_mpc_dequantize_and_synth(c, mb, data);
|
||||||
|
|
||||||
|
av_free(bits);
|
||||||
|
|
||||||
|
bits_used = get_bits_count(&gb);
|
||||||
|
bits_avail = (buf_size - 4) * 8;
|
||||||
|
if(!buf[1] && ((bits_avail < bits_used) || (bits_used + 32 <= bits_avail))){
|
||||||
|
av_log(NULL,0, "Error decoding frame: used %i of %i bits\n", bits_used, bits_avail);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
if(c->frames_to_skip){
|
||||||
|
c->frames_to_skip--;
|
||||||
|
*data_size = 0;
|
||||||
|
return buf_size;
|
||||||
|
}
|
||||||
|
*data_size = (buf[1] ? c->lastframelen : MPC_FRAME_SIZE) * 4;
|
||||||
|
|
||||||
|
return buf_size;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void mpc7_decode_flush(AVCodecContext *avctx)
|
||||||
|
{
|
||||||
|
MPCContext *c = avctx->priv_data;
|
||||||
|
|
||||||
|
memset(c->oldDSCF, 0, sizeof(c->oldDSCF));
|
||||||
|
c->frames_to_skip = 32;
|
||||||
|
}
|
||||||
|
|
||||||
|
AVCodec mpc7_decoder = {
|
||||||
|
"mpc sv7",
|
||||||
|
CODEC_TYPE_AUDIO,
|
||||||
|
CODEC_ID_MUSEPACK7,
|
||||||
|
sizeof(MPCContext),
|
||||||
|
mpc7_decode_init,
|
||||||
|
NULL,
|
||||||
|
NULL,
|
||||||
|
mpc7_decode_frame,
|
||||||
|
.flush = mpc7_decode_flush,
|
||||||
|
};
|
||||||
171
libavcodec/mpc7data.h
Normal file
171
libavcodec/mpc7data.h
Normal file
@ -0,0 +1,171 @@
|
|||||||
|
/*
|
||||||
|
* Musepack decoder
|
||||||
|
* Copyright (c) 2006 Konstantin Shishkov
|
||||||
|
*
|
||||||
|
* This file is part of FFmpeg.
|
||||||
|
*
|
||||||
|
* FFmpeg is free software; you can redistribute it and/or
|
||||||
|
* modify it under the terms of the GNU Lesser General Public
|
||||||
|
* License as published by the Free Software Foundation; either
|
||||||
|
* version 2.1 of the License, or (at your option) any later version.
|
||||||
|
*
|
||||||
|
* FFmpeg is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
* Lesser General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Lesser General Public
|
||||||
|
* License along with FFmpeg; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef FFMPEG_MPC7DATA_H
|
||||||
|
#define FFMPEG_MPC7DATA_H
|
||||||
|
|
||||||
|
#include <stdint.h>
|
||||||
|
|
||||||
|
static const int8_t mpc7_idx30[] = { -1, 0, 1,-1, 0, 1,-1, 0, 1,-1, 0, 1,-1, 0, 1,-1, 0, 1,-1, 0, 1,-1, 0, 1,-1, 0, 1};
|
||||||
|
static const int8_t mpc7_idx31[] = { -1,-1,-1, 0, 0, 0, 1, 1, 1,-1,-1,-1, 0, 0, 0, 1, 1, 1,-1,-1,-1, 0, 0, 0, 1, 1, 1};
|
||||||
|
static const int8_t mpc7_idx32[] = { -1,-1,-1,-1,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1};
|
||||||
|
static const int8_t mpc7_idx50[] = { -2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2};
|
||||||
|
static const int8_t mpc7_idx51[] = { -2,-2,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2};
|
||||||
|
|
||||||
|
#define MPC7_SCFI_SIZE 4
|
||||||
|
#define MPC7_SCFI_BITS 3
|
||||||
|
static const uint8_t mpc7_scfi[MPC7_SCFI_SIZE * 2] = {
|
||||||
|
0x2, 3, 0x1, 1, 0x3, 3, 0x0, 2
|
||||||
|
};
|
||||||
|
|
||||||
|
#define MPC7_DSCF_SIZE 16
|
||||||
|
#define MPC7_DSCF_BITS 6
|
||||||
|
static const uint8_t mpc7_dscf[MPC7_DSCF_SIZE * 2] = {
|
||||||
|
0x20, 6, 0x04, 5, 0x11, 5, 0x1E, 5, 0x0D, 4, 0x00, 3, 0x03, 3, 0x09, 4,
|
||||||
|
0x05, 3, 0x02, 3, 0x0E, 4, 0x03, 4, 0x1F, 5, 0x05, 5, 0x21, 6, 0x0C, 4
|
||||||
|
};
|
||||||
|
|
||||||
|
#define MPC7_HDR_SIZE 10
|
||||||
|
#define MPC7_HDR_BITS 9
|
||||||
|
static const uint8_t mpc7_hdr[MPC7_HDR_SIZE * 2] = {
|
||||||
|
0x5C, 8, 0x2F, 7, 0x0A, 5, 0x04, 4, 0x00, 2,
|
||||||
|
0x01, 1, 0x03, 3, 0x16, 6, 0xBB, 9, 0xBA, 9
|
||||||
|
};
|
||||||
|
|
||||||
|
#define MPC7_QUANT_VLC_TABLES 7
|
||||||
|
static const uint8_t mpc7_quant_vlc_sizes[MPC7_QUANT_VLC_TABLES * 2] = {
|
||||||
|
27, 25, 7, 9, 15, 31, 63
|
||||||
|
};
|
||||||
|
|
||||||
|
static const uint8_t mpc7_quant_vlc_off[MPC7_QUANT_VLC_TABLES] = {
|
||||||
|
0, 0, 3, 4, 7, 15, 31
|
||||||
|
};
|
||||||
|
|
||||||
|
static const uint16_t mpc7_quant_vlc[MPC7_QUANT_VLC_TABLES][2][64 * 2] = {
|
||||||
|
{
|
||||||
|
{
|
||||||
|
0x0036, 6, 0x0009, 5, 0x0020, 6, 0x0005, 5, 0x000A, 4, 0x0007, 5,
|
||||||
|
0x0034, 6, 0x0000, 5, 0x0023, 6, 0x000A, 5, 0x0006, 4, 0x0004, 5,
|
||||||
|
0x000B, 4, 0x0007, 3, 0x000C, 4, 0x0003, 5, 0x0007, 4, 0x000B, 5,
|
||||||
|
0x0022, 6, 0x0001, 5, 0x0035, 6, 0x0006, 5, 0x0009, 4, 0x0002, 5,
|
||||||
|
0x0021, 6, 0x0008, 5, 0x0037, 6
|
||||||
|
},
|
||||||
|
{
|
||||||
|
0x0067, 8, 0x003E, 7, 0x00E1, 9, 0x0037, 7, 0x0003, 4, 0x0034, 7,
|
||||||
|
0x0065, 8, 0x003C, 7, 0x00E3, 9, 0x0018, 6, 0x0000, 4, 0x003D, 7,
|
||||||
|
0x0004, 4, 0x0001, 1, 0x0005, 4, 0x003F, 7, 0x0001, 4, 0x003B, 7,
|
||||||
|
0x00E2, 9, 0x0039, 7, 0x0064, 8, 0x0035, 7, 0x0002, 4, 0x0036, 7,
|
||||||
|
0x00E0, 9, 0x003A, 7, 0x0066, 8
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
{
|
||||||
|
0x0059, 7, 0x002F, 6, 0x000F, 5, 0x0000, 5, 0x005B, 7, 0x0004, 5,
|
||||||
|
0x0006, 4, 0x000D, 4, 0x0004, 4, 0x0005, 5, 0x0014, 5, 0x000C, 4,
|
||||||
|
0x0004, 3, 0x000F, 4, 0x000E, 5, 0x0003, 5, 0x0003, 4, 0x000E, 4,
|
||||||
|
0x0005, 4, 0x0001, 5, 0x005A, 7, 0x0002, 5, 0x0015, 5, 0x002E, 6,
|
||||||
|
0x0058, 7
|
||||||
|
},
|
||||||
|
{
|
||||||
|
0x0399, 10, 0x0071, 7, 0x0033, 6, 0x00E7, 8, 0x039A, 10, 0x0068, 7,
|
||||||
|
0x001E, 5, 0x0000, 3, 0x001D, 5, 0x0069, 7, 0x0032, 6, 0x0001, 3,
|
||||||
|
0x0002, 2, 0x0003, 3, 0x0031, 6, 0x006B, 7, 0x001B, 5, 0x0002, 3,
|
||||||
|
0x001F, 5, 0x0070, 7, 0x0398, 10, 0x006A, 7, 0x0030, 6, 0x0072, 7,
|
||||||
|
0x039B, 10
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
{
|
||||||
|
0x000C, 4, 0x0004, 3, 0x0000, 2, 0x0001, 2, 0x0007, 3, 0x0005, 3, 0x000D, 4
|
||||||
|
},
|
||||||
|
{
|
||||||
|
0x0004, 5, 0x0003, 4, 0x0002, 2, 0x0003, 2, 0x0001, 2, 0x0000, 3, 0x0005, 5
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
{
|
||||||
|
0x0005, 4, 0x0000, 3, 0x0004, 3, 0x0006, 3, 0x0007, 3, 0x0005, 3, 0x0003, 3, 0x0001, 3, 0x0004, 4
|
||||||
|
},
|
||||||
|
{
|
||||||
|
0x0009, 5, 0x000C, 4, 0x0003, 3, 0x0000, 2, 0x0002, 2, 0x0007, 3, 0x000D, 4, 0x0005, 4, 0x0008, 5
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
{
|
||||||
|
0x0039, 6, 0x0017, 5, 0x0008, 4, 0x000A, 4, 0x000D, 4, 0x0000, 3,
|
||||||
|
0x0002, 3, 0x0003, 3, 0x0001, 3, 0x000F, 4, 0x000C, 4, 0x0009, 4,
|
||||||
|
0x001D, 5, 0x0016, 5, 0x0038, 6,
|
||||||
|
},
|
||||||
|
{
|
||||||
|
0x00E5, 8, 0x0038, 6, 0x0007, 5, 0x0002, 4, 0x0000, 3, 0x0003, 3,
|
||||||
|
0x0005, 3, 0x0006, 3, 0x0004, 3, 0x0002, 3, 0x000F, 4, 0x001D, 5,
|
||||||
|
0x0006, 5, 0x0073, 7, 0x00E4, 8,
|
||||||
|
},
|
||||||
|
},
|
||||||
|
{
|
||||||
|
{
|
||||||
|
0x0041, 7, 0x0006, 6, 0x002C, 6, 0x002D, 6, 0x003B, 6, 0x000D, 5,
|
||||||
|
0x0011, 5, 0x0013, 5, 0x0017, 5, 0x0015, 5, 0x001A, 5, 0x001E, 5,
|
||||||
|
0x0000, 4, 0x0002, 4, 0x0005, 4, 0x0007, 4, 0x0003, 4, 0x0004, 4,
|
||||||
|
0x001F, 5, 0x001C, 5, 0x0019, 5, 0x001B, 5, 0x0018, 5, 0x0014, 5,
|
||||||
|
0x0012, 5, 0x000C, 5, 0x0002, 5, 0x003A, 6, 0x0021, 6, 0x0007, 6,
|
||||||
|
0x0040, 7
|
||||||
|
},
|
||||||
|
{
|
||||||
|
0x1948, 13, 0x194A, 13, 0x0328, 10, 0x0195, 9, 0x00CB, 8, 0x0066, 7,
|
||||||
|
0x0031, 6, 0x0009, 5, 0x000F, 5, 0x001F, 5, 0x0002, 4, 0x0006, 4,
|
||||||
|
0x0008, 4, 0x000B, 4, 0x000D, 4, 0x0000, 3, 0x000E, 4, 0x000A, 4,
|
||||||
|
0x0009, 4, 0x0005, 4, 0x0003, 4, 0x001E, 5, 0x000E, 5, 0x0008, 5,
|
||||||
|
0x0030, 6, 0x0067, 7, 0x00C9, 8, 0x00C8, 8, 0x0653, 11, 0x1949, 13,
|
||||||
|
0x194B, 13
|
||||||
|
}
|
||||||
|
},
|
||||||
|
{
|
||||||
|
{
|
||||||
|
0x0067, 8, 0x0099, 8, 0x00B5, 8, 0x00E9, 8, 0x0040, 7, 0x0041, 7,
|
||||||
|
0x004D, 7, 0x0051, 7, 0x005B, 7, 0x0071, 7, 0x0070, 7, 0x0018, 6,
|
||||||
|
0x001D, 6, 0x0023, 6, 0x0025, 6, 0x0029, 6, 0x002C, 6, 0x002E, 6,
|
||||||
|
0x0033, 6, 0x0031, 6, 0x0036, 6, 0x0037, 6, 0x0039, 6, 0x003C, 6,
|
||||||
|
0x0000, 5, 0x0002, 5, 0x000A, 5, 0x0005, 5, 0x0009, 5, 0x0006, 5,
|
||||||
|
0x000D, 5, 0x0007, 5, 0x000B, 5, 0x000F, 5, 0x0008, 5, 0x0004, 5,
|
||||||
|
0x0003, 5, 0x0001, 5, 0x003F, 6, 0x003E, 6, 0x003D, 6, 0x0035, 6,
|
||||||
|
0x003B, 6, 0x0034, 6, 0x0030, 6, 0x002F, 6, 0x002B, 6, 0x002A, 6,
|
||||||
|
0x0027, 6, 0x0024, 6, 0x0021, 6, 0x001C, 6, 0x0075, 7, 0x0065, 7,
|
||||||
|
0x0064, 7, 0x0050, 7, 0x0045, 7, 0x0044, 7, 0x0032, 7, 0x00E8, 8,
|
||||||
|
0x00B4, 8, 0x0098, 8, 0x0066, 8
|
||||||
|
},
|
||||||
|
{
|
||||||
|
0x37A4, 14, 0x37AD, 14, 0x37A6, 14, 0x37AE, 14, 0x0DEA, 12, 0x02F0, 10,
|
||||||
|
0x02F1, 10, 0x00A0, 9, 0x00A2, 9, 0x01BC, 9, 0x007A, 8, 0x00DF, 8,
|
||||||
|
0x003C, 7, 0x0049, 7, 0x006E, 7, 0x000E, 6, 0x0018, 6, 0x0019, 6,
|
||||||
|
0x0022, 6, 0x0025, 6, 0x0036, 6, 0x0003, 5, 0x0009, 5, 0x000B, 5,
|
||||||
|
0x0010, 5, 0x0013, 5, 0x0015, 5, 0x0018, 5, 0x001A, 5, 0x001D, 5,
|
||||||
|
0x001F, 5, 0x0002, 4, 0x0000, 4, 0x001E, 5, 0x001C, 5, 0x0019, 5,
|
||||||
|
0x0016, 5, 0x0014, 5, 0x000E, 5, 0x000D, 5, 0x0008, 5, 0x0006, 5,
|
||||||
|
0x0002, 5, 0x002E, 6, 0x0023, 6, 0x001F, 6, 0x0015, 6, 0x000F, 6,
|
||||||
|
0x005F, 7, 0x0048, 7, 0x0029, 7, 0x00BD, 8, 0x007B, 8, 0x0179, 9,
|
||||||
|
0x00A1, 9, 0x037B, 10, 0x0147, 10, 0x0146, 10, 0x0DE8, 12, 0x37AF, 14,
|
||||||
|
0x37A7, 14, 0x37AC, 14, 0x37A5, 14
|
||||||
|
}
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif /* FFMPEG_MPC7DATA_H */
|
||||||
@ -24,157 +24,13 @@
|
|||||||
|
|
||||||
#include <stdint.h>
|
#include <stdint.h>
|
||||||
|
|
||||||
static const int8_t mpc_idx30[] = { -1, 0, 1,-1, 0, 1,-1, 0, 1,-1, 0, 1,-1, 0, 1,-1, 0, 1,-1, 0, 1,-1, 0, 1,-1, 0, 1};
|
|
||||||
static const int8_t mpc_idx31[] = { -1,-1,-1, 0, 0, 0, 1, 1, 1,-1,-1,-1, 0, 0, 0, 1, 1, 1,-1,-1,-1, 0, 0, 0, 1, 1, 1};
|
|
||||||
static const int8_t mpc_idx32[] = { -1,-1,-1,-1,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1};
|
|
||||||
static const int8_t mpc_idx50[] = { -2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2};
|
|
||||||
static const int8_t mpc_idx51[] = { -2,-2,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2};
|
|
||||||
|
|
||||||
static const float mpc_CC[18] = {
|
static const float mpc_CC[18] = {
|
||||||
65536.0000, 21845.3333, 13107.2000, 9362.2857, 7281.7778, 4369.0667, 2114.0645,
|
65536.0000, 21845.3333, 13107.2000, 9362.2857, 7281.7778, 4369.0667, 2114.0645,
|
||||||
1040.2539, 516.0315, 257.0039, 128.2505, 64.0626, 32.0156, 16.0039, 8.0010,
|
1040.2539, 516.0315, 257.0039, 128.2505, 64.0626, 32.0156, 16.0039, 8.0010,
|
||||||
4.0002, 2.0001, 1.0000
|
4.0002, 2.0001, 1.0000
|
||||||
};
|
};
|
||||||
|
|
||||||
#define MPC7_SCFI_SIZE 4
|
static const float mpc_SCF[128] = {
|
||||||
#define MPC7_SCFI_BITS 3
|
|
||||||
static const uint8_t mpc7_scfi[MPC7_SCFI_SIZE * 2] = {
|
|
||||||
0x2, 3, 0x1, 1, 0x3, 3, 0x0, 2
|
|
||||||
};
|
|
||||||
|
|
||||||
#define MPC7_DSCF_SIZE 16
|
|
||||||
#define MPC7_DSCF_BITS 6
|
|
||||||
static const uint8_t mpc7_dscf[MPC7_DSCF_SIZE * 2] = {
|
|
||||||
0x20, 6, 0x04, 5, 0x11, 5, 0x1E, 5, 0x0D, 4, 0x00, 3, 0x03, 3, 0x09, 4,
|
|
||||||
0x05, 3, 0x02, 3, 0x0E, 4, 0x03, 4, 0x1F, 5, 0x05, 5, 0x21, 6, 0x0C, 4
|
|
||||||
};
|
|
||||||
|
|
||||||
#define MPC7_HDR_SIZE 10
|
|
||||||
#define MPC7_HDR_BITS 9
|
|
||||||
static const uint8_t mpc7_hdr[MPC7_HDR_SIZE * 2] = {
|
|
||||||
0x5C, 8, 0x2F, 7, 0x0A, 5, 0x04, 4, 0x00, 2,
|
|
||||||
0x01, 1, 0x03, 3, 0x16, 6, 0xBB, 9, 0xBA, 9
|
|
||||||
};
|
|
||||||
|
|
||||||
#define MPC7_QUANT_VLC_TABLES 7
|
|
||||||
static const uint8_t mpc7_quant_vlc_sizes[MPC7_QUANT_VLC_TABLES * 2] = {
|
|
||||||
27, 25, 7, 9, 15, 31, 63
|
|
||||||
};
|
|
||||||
|
|
||||||
static const uint8_t mpc7_quant_vlc_off[MPC7_QUANT_VLC_TABLES] = {
|
|
||||||
0, 0, 3, 4, 7, 15, 31
|
|
||||||
};
|
|
||||||
|
|
||||||
static const uint16_t mpc7_quant_vlc[MPC7_QUANT_VLC_TABLES][2][64 * 2] = {
|
|
||||||
{
|
|
||||||
{
|
|
||||||
0x0036, 6, 0x0009, 5, 0x0020, 6, 0x0005, 5, 0x000A, 4, 0x0007, 5,
|
|
||||||
0x0034, 6, 0x0000, 5, 0x0023, 6, 0x000A, 5, 0x0006, 4, 0x0004, 5,
|
|
||||||
0x000B, 4, 0x0007, 3, 0x000C, 4, 0x0003, 5, 0x0007, 4, 0x000B, 5,
|
|
||||||
0x0022, 6, 0x0001, 5, 0x0035, 6, 0x0006, 5, 0x0009, 4, 0x0002, 5,
|
|
||||||
0x0021, 6, 0x0008, 5, 0x0037, 6
|
|
||||||
},
|
|
||||||
{
|
|
||||||
0x0067, 8, 0x003E, 7, 0x00E1, 9, 0x0037, 7, 0x0003, 4, 0x0034, 7,
|
|
||||||
0x0065, 8, 0x003C, 7, 0x00E3, 9, 0x0018, 6, 0x0000, 4, 0x003D, 7,
|
|
||||||
0x0004, 4, 0x0001, 1, 0x0005, 4, 0x003F, 7, 0x0001, 4, 0x003B, 7,
|
|
||||||
0x00E2, 9, 0x0039, 7, 0x0064, 8, 0x0035, 7, 0x0002, 4, 0x0036, 7,
|
|
||||||
0x00E0, 9, 0x003A, 7, 0x0066, 8
|
|
||||||
}
|
|
||||||
},
|
|
||||||
{
|
|
||||||
{
|
|
||||||
0x0059, 7, 0x002F, 6, 0x000F, 5, 0x0000, 5, 0x005B, 7, 0x0004, 5,
|
|
||||||
0x0006, 4, 0x000D, 4, 0x0004, 4, 0x0005, 5, 0x0014, 5, 0x000C, 4,
|
|
||||||
0x0004, 3, 0x000F, 4, 0x000E, 5, 0x0003, 5, 0x0003, 4, 0x000E, 4,
|
|
||||||
0x0005, 4, 0x0001, 5, 0x005A, 7, 0x0002, 5, 0x0015, 5, 0x002E, 6,
|
|
||||||
0x0058, 7
|
|
||||||
},
|
|
||||||
{
|
|
||||||
0x0399, 10, 0x0071, 7, 0x0033, 6, 0x00E7, 8, 0x039A, 10, 0x0068, 7,
|
|
||||||
0x001E, 5, 0x0000, 3, 0x001D, 5, 0x0069, 7, 0x0032, 6, 0x0001, 3,
|
|
||||||
0x0002, 2, 0x0003, 3, 0x0031, 6, 0x006B, 7, 0x001B, 5, 0x0002, 3,
|
|
||||||
0x001F, 5, 0x0070, 7, 0x0398, 10, 0x006A, 7, 0x0030, 6, 0x0072, 7,
|
|
||||||
0x039B, 10
|
|
||||||
}
|
|
||||||
},
|
|
||||||
{
|
|
||||||
{
|
|
||||||
0x000C, 4, 0x0004, 3, 0x0000, 2, 0x0001, 2, 0x0007, 3, 0x0005, 3, 0x000D, 4
|
|
||||||
},
|
|
||||||
{
|
|
||||||
0x0004, 5, 0x0003, 4, 0x0002, 2, 0x0003, 2, 0x0001, 2, 0x0000, 3, 0x0005, 5
|
|
||||||
}
|
|
||||||
},
|
|
||||||
{
|
|
||||||
{
|
|
||||||
0x0005, 4, 0x0000, 3, 0x0004, 3, 0x0006, 3, 0x0007, 3, 0x0005, 3, 0x0003, 3, 0x0001, 3, 0x0004, 4
|
|
||||||
},
|
|
||||||
{
|
|
||||||
0x0009, 5, 0x000C, 4, 0x0003, 3, 0x0000, 2, 0x0002, 2, 0x0007, 3, 0x000D, 4, 0x0005, 4, 0x0008, 5
|
|
||||||
}
|
|
||||||
},
|
|
||||||
{
|
|
||||||
{
|
|
||||||
0x0039, 6, 0x0017, 5, 0x0008, 4, 0x000A, 4, 0x000D, 4, 0x0000, 3,
|
|
||||||
0x0002, 3, 0x0003, 3, 0x0001, 3, 0x000F, 4, 0x000C, 4, 0x0009, 4,
|
|
||||||
0x001D, 5, 0x0016, 5, 0x0038, 6,
|
|
||||||
},
|
|
||||||
{
|
|
||||||
0x00E5, 8, 0x0038, 6, 0x0007, 5, 0x0002, 4, 0x0000, 3, 0x0003, 3,
|
|
||||||
0x0005, 3, 0x0006, 3, 0x0004, 3, 0x0002, 3, 0x000F, 4, 0x001D, 5,
|
|
||||||
0x0006, 5, 0x0073, 7, 0x00E4, 8,
|
|
||||||
},
|
|
||||||
},
|
|
||||||
{
|
|
||||||
{
|
|
||||||
0x0041, 7, 0x0006, 6, 0x002C, 6, 0x002D, 6, 0x003B, 6, 0x000D, 5,
|
|
||||||
0x0011, 5, 0x0013, 5, 0x0017, 5, 0x0015, 5, 0x001A, 5, 0x001E, 5,
|
|
||||||
0x0000, 4, 0x0002, 4, 0x0005, 4, 0x0007, 4, 0x0003, 4, 0x0004, 4,
|
|
||||||
0x001F, 5, 0x001C, 5, 0x0019, 5, 0x001B, 5, 0x0018, 5, 0x0014, 5,
|
|
||||||
0x0012, 5, 0x000C, 5, 0x0002, 5, 0x003A, 6, 0x0021, 6, 0x0007, 6,
|
|
||||||
0x0040, 7
|
|
||||||
},
|
|
||||||
{
|
|
||||||
0x1948, 13, 0x194A, 13, 0x0328, 10, 0x0195, 9, 0x00CB, 8, 0x0066, 7,
|
|
||||||
0x0031, 6, 0x0009, 5, 0x000F, 5, 0x001F, 5, 0x0002, 4, 0x0006, 4,
|
|
||||||
0x0008, 4, 0x000B, 4, 0x000D, 4, 0x0000, 3, 0x000E, 4, 0x000A, 4,
|
|
||||||
0x0009, 4, 0x0005, 4, 0x0003, 4, 0x001E, 5, 0x000E, 5, 0x0008, 5,
|
|
||||||
0x0030, 6, 0x0067, 7, 0x00C9, 8, 0x00C8, 8, 0x0653, 11, 0x1949, 13,
|
|
||||||
0x194B, 13
|
|
||||||
}
|
|
||||||
},
|
|
||||||
{
|
|
||||||
{
|
|
||||||
0x0067, 8, 0x0099, 8, 0x00B5, 8, 0x00E9, 8, 0x0040, 7, 0x0041, 7,
|
|
||||||
0x004D, 7, 0x0051, 7, 0x005B, 7, 0x0071, 7, 0x0070, 7, 0x0018, 6,
|
|
||||||
0x001D, 6, 0x0023, 6, 0x0025, 6, 0x0029, 6, 0x002C, 6, 0x002E, 6,
|
|
||||||
0x0033, 6, 0x0031, 6, 0x0036, 6, 0x0037, 6, 0x0039, 6, 0x003C, 6,
|
|
||||||
0x0000, 5, 0x0002, 5, 0x000A, 5, 0x0005, 5, 0x0009, 5, 0x0006, 5,
|
|
||||||
0x000D, 5, 0x0007, 5, 0x000B, 5, 0x000F, 5, 0x0008, 5, 0x0004, 5,
|
|
||||||
0x0003, 5, 0x0001, 5, 0x003F, 6, 0x003E, 6, 0x003D, 6, 0x0035, 6,
|
|
||||||
0x003B, 6, 0x0034, 6, 0x0030, 6, 0x002F, 6, 0x002B, 6, 0x002A, 6,
|
|
||||||
0x0027, 6, 0x0024, 6, 0x0021, 6, 0x001C, 6, 0x0075, 7, 0x0065, 7,
|
|
||||||
0x0064, 7, 0x0050, 7, 0x0045, 7, 0x0044, 7, 0x0032, 7, 0x00E8, 8,
|
|
||||||
0x00B4, 8, 0x0098, 8, 0x0066, 8
|
|
||||||
},
|
|
||||||
{
|
|
||||||
0x37A4, 14, 0x37AD, 14, 0x37A6, 14, 0x37AE, 14, 0x0DEA, 12, 0x02F0, 10,
|
|
||||||
0x02F1, 10, 0x00A0, 9, 0x00A2, 9, 0x01BC, 9, 0x007A, 8, 0x00DF, 8,
|
|
||||||
0x003C, 7, 0x0049, 7, 0x006E, 7, 0x000E, 6, 0x0018, 6, 0x0019, 6,
|
|
||||||
0x0022, 6, 0x0025, 6, 0x0036, 6, 0x0003, 5, 0x0009, 5, 0x000B, 5,
|
|
||||||
0x0010, 5, 0x0013, 5, 0x0015, 5, 0x0018, 5, 0x001A, 5, 0x001D, 5,
|
|
||||||
0x001F, 5, 0x0002, 4, 0x0000, 4, 0x001E, 5, 0x001C, 5, 0x0019, 5,
|
|
||||||
0x0016, 5, 0x0014, 5, 0x000E, 5, 0x000D, 5, 0x0008, 5, 0x0006, 5,
|
|
||||||
0x0002, 5, 0x002E, 6, 0x0023, 6, 0x001F, 6, 0x0015, 6, 0x000F, 6,
|
|
||||||
0x005F, 7, 0x0048, 7, 0x0029, 7, 0x00BD, 8, 0x007B, 8, 0x0179, 9,
|
|
||||||
0x00A1, 9, 0x037B, 10, 0x0147, 10, 0x0146, 10, 0x0DE8, 12, 0x37AF, 14,
|
|
||||||
0x37A7, 14, 0x37AC, 14, 0x37A5, 14
|
|
||||||
}
|
|
||||||
}
|
|
||||||
};
|
|
||||||
|
|
||||||
static const float mpc7_SCF[128] = {
|
|
||||||
307.330047607421875000, 255.999984741210937500, 213.243041992187500000, 177.627334594726562500,
|
307.330047607421875000, 255.999984741210937500, 213.243041992187500000, 177.627334594726562500,
|
||||||
147.960128784179687500, 123.247924804687500000, 102.663139343261718750, 85.516410827636718750,
|
147.960128784179687500, 123.247924804687500000, 102.663139343261718750, 85.516410827636718750,
|
||||||
71.233520507812500000, 59.336143493652343750, 49.425861358642578125, 41.170787811279296875,
|
71.233520507812500000, 59.336143493652343750, 49.425861358642578125, 41.170787811279296875,
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user