mirror of
https://github.com/mpv-player/mpv
synced 2025-01-20 22:40:52 +00:00
Remove MPlayer native 14_4 and 28_8 codecs (they are in lavc)
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17152 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
rtognimp
parent
817b489d60
commit
81d2a7031c
@ -2121,13 +2121,6 @@ audiocodec ffcook
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driver ffmpeg
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dll "cook"
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audiocodec mpra1428
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info "RealAudio 1.0 / 2.0 native decoder"
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status working
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format 0x345F3431 ; "14_4"
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; format 0x385F3832 ; "28_8" ; broken after demuxer changes
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driver ra1428
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audiocodec ra144
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info "RealAudio 1.0"
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status working
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@ -15,7 +15,6 @@ AUDIO_SRCS_NAT=ad_alaw.c \
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ad_msadpcm.c \
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ad_msgsm.c \
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ad_pcm.c \
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ad_ra1428.c \
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AUDIO_SRCS_OPT=ad_acm.c \
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ad_dmo.c \
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@ -157,9 +156,7 @@ ENCODER_SRCS=ae.c \
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ve_xvid4.c \
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ve_xvid.c \
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NATIVE_SRCS=native/decode144.c \
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native/decode288.c \
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native/minilzo.c \
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NATIVE_SRCS=native/minilzo.c \
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native/nuppelvideo.c \
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native/RTjpegN.c \
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native/xa_gsm.c \
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@ -38,7 +38,6 @@ extern ad_functions_t mpcodecs_ad_libmad;
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extern ad_functions_t mpcodecs_ad_realaud;
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extern ad_functions_t mpcodecs_ad_libdv;
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extern ad_functions_t mpcodecs_ad_qtaudio;
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extern ad_functions_t mpcodecs_ad_ra1428;
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extern ad_functions_t mpcodecs_ad_twin;
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extern ad_functions_t mpcodecs_ad_libmusepack;
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@ -91,7 +90,6 @@ ad_functions_t* mpcodecs_ad_drivers[] =
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#ifdef HAVE_LIBDV095
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&mpcodecs_ad_libdv,
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#endif
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&mpcodecs_ad_ra1428,
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#ifdef HAVE_MUSEPACK
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&mpcodecs_ad_libmusepack,
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#endif
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@ -1,147 +0,0 @@
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// SAMPLE audio decoder - you can use this file as template when creating new codec!
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "config.h"
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#include "ad_internal.h"
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static ad_info_t info = {
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"RealAudio 1.0 and 2.0 native decoder",
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"ra1428",
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"Roberto Togni",
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"http://www.honeypot.net/audio",
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"Decoders taken from a public domain Amiga player"
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};
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LIBAD_EXTERN(ra1428)
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#include "native/common1428.h"
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static int preinit(sh_audio_t *sh) {
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sh->samplerate=sh->wf->nSamplesPerSec;
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sh->samplesize=sh->wf->wBitsPerSample/8;
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sh->channels=sh->wf->nChannels;
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sh->sample_format=AF_FORMAT_S16_LE;
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switch (sh->format) {
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case mmioFOURCC('1','4','_','4'):
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mp_msg(MSGT_DECAUDIO,MSGL_INFO,"[ra1428] RealAudio 1.0 (14_4)\n");
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sh->i_bps=1800;
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break;
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case mmioFOURCC('2','8','_','8'):
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mp_msg(MSGT_DECAUDIO,MSGL_INFO,"[ra1428] RealAudio 2.0 (28_8)\n");
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sh->i_bps=1200;
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break;
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default:
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mp_msg(MSGT_DECAUDIO,MSGL_ERR,"[ra1428] Unhandled format in preinit: %x\n", sh->format);
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return 0;
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}
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sh->audio_out_minsize=128000; // no idea how to get... :(
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sh->audio_in_minsize=((short*)(sh->wf+1))[1]*sh->wf->nBlockAlign;
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return 1; // return values: 1=OK 0=ERROR
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}
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static int init(sh_audio_t *sh) {
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switch (sh->format) {
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case mmioFOURCC('1','4','_','4'):
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sh->context = init_144();
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break;
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case mmioFOURCC('2','8','_','8'):
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sh->context = init_288();
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break;
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default:
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mp_msg(MSGT_DECAUDIO,MSGL_ERR,"[ra1428] Unhandled format in init: %x\n", sh->format);
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return 0;
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}
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return 1; // return values: 1=OK 0=ERROR
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}
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static void uninit(sh_audio_t *sh) {
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switch (sh->format) {
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case mmioFOURCC('1','4','_','4'):
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free_144((Real_144*)sh->context);
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break;
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case mmioFOURCC('2','8','_','8'):
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free_288((Real_288*)sh->context);
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break;
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default:
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mp_msg(MSGT_DECAUDIO,MSGL_ERR,"[ra1428] Unhandled format in uninit: %x\n", sh->format);
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return;
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}
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}
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static int decode_audio(sh_audio_t *sh,unsigned char *buf,int minlen,int maxlen) {
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int w=sh->wf->nBlockAlign;
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int h=((short*)(sh->wf+1))[1];
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int cfs=((short*)(sh->wf+1))[3];
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int i,j;
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if(sh->a_in_buffer_len<=0){
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switch (sh->format) {
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case mmioFOURCC('1','4','_','4'):
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demux_read_data(sh->ds, sh->a_in_buffer, sh->wf->nBlockAlign);
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sh->a_in_buffer_size=
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sh->a_in_buffer_len=sh->wf->nBlockAlign;
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break;
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case mmioFOURCC('2','8','_','8'):
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for (j = 0; j < h; j++)
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for (i = 0; i < h/2; i++)
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demux_read_data(sh->ds, sh->a_in_buffer+i*2*w+j*cfs, cfs);
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sh->a_in_buffer_size=
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sh->a_in_buffer_len=sh->wf->nBlockAlign*h;
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break;
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default:
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mp_msg(MSGT_DECAUDIO,MSGL_ERR,"[ra1428] Unhandled format in decode_audio: %x\n", sh->format);
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return 0;
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}
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}
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switch (sh->format) {
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case mmioFOURCC('1','4','_','4'):
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decode_144((Real_144*)sh->context,sh->a_in_buffer+sh->a_in_buffer_size-sh->a_in_buffer_len,(signed short*)buf);
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break;
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case mmioFOURCC('2','8','_','8'):
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decode_288((Real_288*)sh->context,sh->a_in_buffer+sh->a_in_buffer_size-sh->a_in_buffer_len,(signed short*)buf);
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break;
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default:
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mp_msg(MSGT_DECAUDIO,MSGL_ERR,"[ra1428] Unhandled format in init: %x\n", sh->format);
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return 0;
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}
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sh->a_in_buffer_len-=cfs;
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return AUDIOBLOCK*2; // return value: number of _bytes_ written to output buffer,
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// or -1 for EOF (or uncorrectable error)
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}
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static int control(sh_audio_t *sh,int cmd,void* arg, ...){
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// various optional functions you MAY implement:
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switch(cmd){
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case ADCTRL_RESYNC_STREAM:
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// it is called once after seeking, to resync.
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// Note: sh_audio->a_in_buffer_len=0; is done _before_ this call!
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// ...
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return CONTROL_TRUE;
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case ADCTRL_SKIP_FRAME:
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// it is called to skip (jump over) small amount (1/10 sec or 1 frame)
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// of audio data - used to sync audio to video after seeking
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// if you don't return CONTROL_TRUE, it will defaults to:
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// ds_fill_buffer(sh_audio->ds); // skip 1 demux packet
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// ...
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return CONTROL_TRUE;
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}
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return CONTROL_UNKNOWN;
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}
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@ -1,34 +0,0 @@
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#ifndef COMMON_H
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#define COMMON_H
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <math.h>
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#define DATABLOCK1 20 /* size of 14.4 input block in bytes */
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#define DATABLOCK2 38 /* size of 28.8 input block in bytes */
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#define DATACHUNK1 1440 /* size of 14.4 input chunk in bytes */
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#define DATACHUNK2 2736 /* size of 28.8 input chunk in bytes */
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#define AUDIOBLOCK 160 /* size of output block in 16-bit words (320 bytes) */
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//#define AUDIOBUFFER 11520 /* size of output buffer in 16-bit words (23040 bytes) */
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#define AUDIOBUFFER 12288 /* size of output buffer in 16-bit words (24576 bytes) */
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typedef void Real_144;
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typedef void Real_288;
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typedef void Real_dnet;
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/* common prototypes */
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Real_144 *init_144 (void);
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Real_288 *init_288 (void);
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Real_dnet *init_dnet (void);
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void free_144 (Real_144 *global);
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void free_288 (Real_288 *global);
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void free_dnet (Real_dnet *global);
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void deinterleave (unsigned char *in, unsigned char *out, unsigned int size);
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void swapbytes (unsigned char *in, unsigned char *out, unsigned int len);
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void decode_144 (Real_144 *global, unsigned char *source, signed short *target);
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void decode_288 (Real_288 *global, unsigned char *in, signed short *out);
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int decode_dnet (Real_dnet *global, unsigned char *in, signed short *out, int *freq, int chans);
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#endif /* !COMMON_H */
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@ -1,437 +0,0 @@
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#include "common1428.h"
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#include "decode144.h"
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#include "tables144.h"
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/* Initialize internal variable structure */
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Real_144 *init_144(void)
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{
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Real_internal *glob;
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if ((glob=malloc(sizeof(Real_internal))))
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memset(glob,0,sizeof(Real_internal));
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glob->resetflag=1;
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glob->swapbuf1=glob->swapb1a;
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glob->swapbuf2=glob->swapb2a;
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glob->swapbuf1alt=glob->swapb1b;
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glob->swapbuf2alt=glob->swapb2b;
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memcpy(glob->wavtable1,wavtable1,sizeof(wavtable1));
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memcpy(glob->wavtable2,wavtable2,sizeof(wavtable2));
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return (Real_144 *)glob;
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}
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/* Free internal variable structure */
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void free_144(Real_144 *global)
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{
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if (!global) return;
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free(global);
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}
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/* Uncompress one block (20 bytes -> 160*2 bytes) */
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void decode_144(Real_144 *global, unsigned char *source, signed short *target)
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{
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unsigned int a,b,c;
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long s;
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signed short *shptr;
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unsigned int *lptr,*temp;
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const short **dptr;
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Real_internal *glob;
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if (!global) return;
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glob = (Real_internal *)global;
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unpack_input(source,glob->unpacked);
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glob->iptr=glob->unpacked;
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glob->val=decodetable[0][(*(glob->iptr++))<<1];
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dptr=decodetable+1;
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lptr=glob->swapbuf1;
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while (lptr<glob->swapbuf1+10)
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*(lptr++)=(*(dptr++))[(*(glob->iptr++))<<1];
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do_voice(glob->swapbuf1,glob->swapbuf2);
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a=t_sqrt(glob->val*glob->oldval)>>12;
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for (c=0;c<NBLOCKS;c++) {
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if (c==(NBLOCKS-1)) {
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dec1(glob,glob->swapbuf1,glob->swapbuf2,3,glob->val);
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} else {
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if (c*2==(NBLOCKS-2)) {
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if (glob->oldval<glob->val) {
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dec2(glob,glob->swapbuf1,glob->swapbuf2,3,a,glob->swapbuf2alt,c);
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} else {
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dec2(glob,glob->swapbuf1alt,glob->swapbuf2alt,3,a,glob->swapbuf2,c);
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}
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} else {
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if (c*2<(NBLOCKS-2)) {
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dec2(glob,glob->swapbuf1alt,glob->swapbuf2alt,3,glob->oldval,glob->swapbuf2,c);
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} else {
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dec2(glob,glob->swapbuf1,glob->swapbuf2,3,glob->val,glob->swapbuf2alt,c);
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}
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}
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}
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}
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/* do output */
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for (b=0,c=0;c<4;c++) {
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glob->gval=glob->gbuf1[c*2];
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glob->gsp=glob->gbuf2+b;
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do_output_subblock(glob,glob->resetflag);
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glob->resetflag=0;
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shptr=glob->output_buffer;
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while (shptr<glob->output_buffer+BLOCKSIZE) {
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s=*(shptr++)<<2;
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*target=s;
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if (s>32767) *target=32767;
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if (s<-32767) *target=-32768;
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target++;
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}
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b+=30;
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}
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glob->oldval=glob->val;
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temp=glob->swapbuf1alt;
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glob->swapbuf1alt=glob->swapbuf1;
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glob->swapbuf1=temp;
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temp=glob->swapbuf2alt;
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glob->swapbuf2alt=glob->swapbuf2;
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glob->swapbuf2=temp;
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}
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/* lookup square roots in table */
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static int t_sqrt(unsigned int x)
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{
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int s=0;
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while (x>0xfff) { s++; x=x>>2; }
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return (sqrt_table[x]<<s)<<2;
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}
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/* do 'voice' */
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static void do_voice(int *a1, int *a2)
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{
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int buffer[10];
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int *b1,*b2;
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int x,y;
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int *ptr,*tmp;
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b1=buffer;
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b2=a2;
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for (x=0;x<10;x++) {
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b1[x]=(*a1)<<4;
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if(x>0) {
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ptr=b2+x;
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for (y=0;y<=x-1;y++)
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b1[y]=(((*a1)*(*(--ptr)))>>12)+b2[y];
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}
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tmp=b1;
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b1=b2;
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b2=tmp;
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a1++;
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}
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ptr=a2+10;
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while (ptr>a2) (*a2++)>>=4;
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}
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/* do quarter-block output */
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static void do_output_subblock(Real_internal *glob, int x)
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{
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int a,b,c,d,e,f,g;
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if (x==1) memset(glob->buffer,0,20);
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if ((*glob->iptr)==0) a=0;
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else a=(*glob->iptr)+HALFBLOCK-1;
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glob->iptr++;
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b=*(glob->iptr++);
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c=*(glob->iptr++);
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d=*(glob->iptr++);
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if (a) rotate_block(glob->buffer_2,glob->buffer_a,a);
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memcpy(glob->buffer_b,etable1+b*BLOCKSIZE,BLOCKSIZE*2);
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e=((ftable1[b]>>4)*glob->gval)>>8;
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memcpy(glob->buffer_c,etable2+c*BLOCKSIZE,BLOCKSIZE*2);
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f=((ftable2[c]>>4)*glob->gval)>>8;
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if (a) g=irms(glob->buffer_a,glob->gval)>>12;
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else g=0;
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add_wav(glob,d,a,g,e,f,glob->buffer_a,glob->buffer_b,glob->buffer_c,glob->buffer_d);
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memmove(glob->buffer_2,glob->buffer_2+BLOCKSIZE,(BUFFERSIZE-BLOCKSIZE)*2);
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memcpy(glob->buffer_2+BUFFERSIZE-BLOCKSIZE,glob->buffer_d,BLOCKSIZE*2);
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final(glob,glob->gsp,glob->buffer_d,glob->output_buffer,glob->buffer,BLOCKSIZE);
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}
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/* rotate block */
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static void rotate_block(short *source, short *target, int offset)
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{
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short *end;
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short *ptr1;
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short *ptr2;
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short *ptr3;
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ptr2=source+BUFFERSIZE;
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ptr3=ptr1=ptr2-offset;
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end=target+BLOCKSIZE;
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while (target<end) {
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*(target++)=*(ptr3++);
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if (ptr3==ptr2) ptr3=ptr1;
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}
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}
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/* inverse root mean square */
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static int irms(short *data, int factor)
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{
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short *p1,*p2;
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unsigned int sum;
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p2=(p1=data)+BLOCKSIZE;
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for (sum=0;p2>p1;p1++) sum+=(*p1)*(*p1);
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if (sum==0) return 0; /* OOPS - division by zero */
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return (0x20000000/(t_sqrt(sum)>>8))*factor;
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}
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/* multiply/add wavetable */
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static void add_wav(Real_internal *glob, int n, int f, int m1, int m2, int m3, short *s1, short *s2, short *s3, short *dest)
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{
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int a,b,c;
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int x;
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short *ptr,*ptr2;
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ptr=glob->wavtable1+n*9;
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ptr2=glob->wavtable2+n*9;
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if (f!=0) {
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a=((*ptr)*m1)>>((*ptr2)+1);
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} else {
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a=0;
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}
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ptr++;ptr2++;
|
||||
b=((*ptr)*m2)>>((*ptr2)+1);
|
||||
ptr++;ptr2++;
|
||||
c=((*ptr)*m3)>>((*ptr2)+1);
|
||||
ptr2=(ptr=dest)+BLOCKSIZE;
|
||||
if (f!=0)
|
||||
while (ptr<ptr2)
|
||||
*(ptr++)=((*(s1++))*a+(*(s2++))*b+(*(s3++))*c)>>12;
|
||||
else
|
||||
while (ptr<ptr2)
|
||||
*(ptr++)=((*(s2++))*b+(*(s3++))*c)>>12;
|
||||
}
|
||||
|
||||
|
||||
static void final(Real_internal *glob, short *i1, short *i2, void *out, int *statbuf, int len)
|
||||
{
|
||||
int x,sum;
|
||||
int buffer[10];
|
||||
short *ptr;
|
||||
short *ptr2;
|
||||
|
||||
memcpy(glob->work,statbuf,20);
|
||||
memcpy(glob->work+10,i2,len*2);
|
||||
|
||||
buffer[9]=i1[0];
|
||||
buffer[8]=i1[1];
|
||||
buffer[7]=i1[2];
|
||||
buffer[6]=i1[3];
|
||||
buffer[5]=i1[4];
|
||||
buffer[4]=i1[5];
|
||||
buffer[3]=i1[6];
|
||||
buffer[2]=i1[7];
|
||||
buffer[1]=i1[8];
|
||||
buffer[0]=i1[9];
|
||||
|
||||
ptr2=(ptr=glob->work)+len;
|
||||
while (ptr<ptr2) {
|
||||
for(sum=0,x=0;x<=9;x++)
|
||||
sum+=buffer[x]*(ptr[x]);
|
||||
sum=sum>>12;
|
||||
x=ptr[10]-sum;
|
||||
if (x<-32768 || x>32767)
|
||||
{
|
||||
memset(out,0,len*2);
|
||||
memset(statbuf,0,20);
|
||||
return;
|
||||
}
|
||||
ptr[10]=x;
|
||||
ptr++;
|
||||
}
|
||||
memcpy(out,ptr+10-len,len*2);
|
||||
memcpy(statbuf,ptr,20);
|
||||
}
|
||||
|
||||
/* Decode 20-byte input */
|
||||
static void unpack_input(unsigned char *input, unsigned int *output)
|
||||
{
|
||||
unsigned int outbuffer[28];
|
||||
unsigned short inbuffer[10];
|
||||
unsigned int x;
|
||||
unsigned int *ptr;
|
||||
|
||||
/* fix endianness */
|
||||
for (x=0;x<20;x+=2)
|
||||
inbuffer[x/2]=(input[x]<<8)+input[x+1];
|
||||
|
||||
/* unpack */
|
||||
ptr=outbuffer;
|
||||
*(ptr++)=27;
|
||||
*(ptr++)=(inbuffer[0]>>10)&0x3f;
|
||||
*(ptr++)=(inbuffer[0]>>5)&0x1f;
|
||||
*(ptr++)=inbuffer[0]&0x1f;
|
||||
*(ptr++)=(inbuffer[1]>>12)&0xf;
|
||||
*(ptr++)=(inbuffer[1]>>8)&0xf;
|
||||
*(ptr++)=(inbuffer[1]>>5)&7;
|
||||
*(ptr++)=(inbuffer[1]>>2)&7;
|
||||
*(ptr++)=((inbuffer[1]<<1)&6)|((inbuffer[2]>>15)&1);
|
||||
*(ptr++)=(inbuffer[2]>>12)&7;
|
||||
*(ptr++)=(inbuffer[2]>>10)&3;
|
||||
*(ptr++)=(inbuffer[2]>>5)&0x1f;
|
||||
*(ptr++)=((inbuffer[2]<<2)&0x7c)|((inbuffer[3]>>14)&3);
|
||||
*(ptr++)=(inbuffer[3]>>6)&0xff;
|
||||
*(ptr++)=((inbuffer[3]<<1)&0x7e)|((inbuffer[4]>>15)&1);
|
||||
*(ptr++)=(inbuffer[4]>>8)&0x7f;
|
||||
*(ptr++)=(inbuffer[4]>>1)&0x7f;
|
||||
*(ptr++)=((inbuffer[4]<<7)&0x80)|((inbuffer[5]>>9)&0x7f);
|
||||
*(ptr++)=(inbuffer[5]>>2)&0x7f;
|
||||
*(ptr++)=((inbuffer[5]<<5)&0x60)|((inbuffer[6]>>11)&0x1f);
|
||||
*(ptr++)=(inbuffer[6]>>4)&0x7f;
|
||||
*(ptr++)=((inbuffer[6]<<4)&0xf0)|((inbuffer[7]>>12)&0xf);
|
||||
*(ptr++)=(inbuffer[7]>>5)&0x7f;
|
||||
*(ptr++)=((inbuffer[7]<<2)&0x7c)|((inbuffer[8]>>14)&3);
|
||||
*(ptr++)=(inbuffer[8]>>7)&0x7f;
|
||||
*(ptr++)=((inbuffer[8]<<1)&0xfe)|((inbuffer[9]>>15)&1);
|
||||
*(ptr++)=(inbuffer[9]>>8)&0x7f;
|
||||
*(ptr++)=(inbuffer[9]>>1)&0x7f;
|
||||
|
||||
*(output++)=outbuffer[11];
|
||||
for (x=1;x<11;*(output++)=outbuffer[x++]);
|
||||
ptr=outbuffer+12;
|
||||
for (x=0;x<16;x+=4)
|
||||
{
|
||||
*(output++)=ptr[x];
|
||||
*(output++)=ptr[x+2];
|
||||
*(output++)=ptr[x+3];
|
||||
*(output++)=ptr[x+1];
|
||||
}
|
||||
}
|
||||
|
||||
static unsigned int rms(int *data, int f)
|
||||
{
|
||||
int *c;
|
||||
int x;
|
||||
int d;
|
||||
unsigned int res;
|
||||
int b;
|
||||
|
||||
c=data;
|
||||
b=0;
|
||||
res=0x10000;
|
||||
for (x=0;x<10;x++)
|
||||
{
|
||||
res=(((0x1000000-(*c)*(*c))>>12)*res)>>12;
|
||||
if (res==0) return 0;
|
||||
if (res<=0x3fff)
|
||||
{
|
||||
while (res<=0x3fff)
|
||||
{
|
||||
b++;
|
||||
res<<=2;
|
||||
}
|
||||
} else {
|
||||
if (res>0x10000)
|
||||
return 0; /* We're screwed, might as well go out with a bang. :P */
|
||||
}
|
||||
c++;
|
||||
}
|
||||
if (res>0) res=t_sqrt(res);
|
||||
|
||||
res>>=(b+10);
|
||||
res=(res*f)>>10;
|
||||
return res;
|
||||
}
|
||||
|
||||
static void dec1(Real_internal *glob, int *data, int *inp, int n, int f)
|
||||
{
|
||||
short *ptr,*end;
|
||||
|
||||
*(glob->decptr++)=rms(data,f);
|
||||
glob->decptr++;
|
||||
end=(ptr=glob->decsp)+(n*10);
|
||||
while (ptr<end) *(ptr++)=*(inp++);
|
||||
}
|
||||
|
||||
static void dec2(Real_internal *glob, int *data, int *inp, int n, int f, int *inp2, int l)
|
||||
{
|
||||
unsigned int *ptr1,*ptr2;
|
||||
int work[10];
|
||||
int a,b;
|
||||
int x;
|
||||
int result;
|
||||
|
||||
if(l+1<NBLOCKS/2) a=NBLOCKS-(l+1);
|
||||
else a=l+1;
|
||||
b=NBLOCKS-a;
|
||||
if (l==0)
|
||||
{
|
||||
glob->decsp=glob->sptr=glob->gbuf2;
|
||||
glob->decptr=glob->gbuf1;
|
||||
}
|
||||
ptr1=inp;
|
||||
ptr2=inp2;
|
||||
for (x=0;x<10*n;x++)
|
||||
*(glob->sptr++)=(a*(*ptr1++)+b*(*ptr2++))>>2;
|
||||
result=eq(glob,glob->decsp,work);
|
||||
if (result==1)
|
||||
{
|
||||
dec1(glob,data,inp,n,f);
|
||||
} else {
|
||||
*(glob->decptr++)=rms(work,f);
|
||||
glob->decptr++;
|
||||
}
|
||||
glob->decsp+=n*10;
|
||||
}
|
||||
|
||||
|
||||
static int eq(Real_internal *glob, short *in, int *target)
|
||||
{
|
||||
int retval;
|
||||
int a;
|
||||
int b;
|
||||
int c;
|
||||
unsigned int u;
|
||||
short *sptr;
|
||||
int *ptr1,*ptr2,*ptr3;
|
||||
int *bp1,*bp2,*temp;
|
||||
|
||||
retval=0;
|
||||
bp1=glob->buffer1;
|
||||
bp2=glob->buffer2;
|
||||
ptr2=(ptr3=glob->buffer2)+9;
|
||||
sptr=in;
|
||||
while (ptr2>=ptr3)
|
||||
*(ptr3++)=*(sptr++);
|
||||
|
||||
target+=9;
|
||||
a=bp2[9];
|
||||
*target=a;
|
||||
if (a+0x1000>0x1fff)
|
||||
return 0; /* We're screwed, might as well go out with a bang. :P */
|
||||
c=8;u=a;
|
||||
while (c>=0)
|
||||
{
|
||||
if (u==0x1000) u++;
|
||||
if (u==0xfffff000) u--;
|
||||
b=0x1000-((u*u)>>12);
|
||||
if (b==0) b++;
|
||||
ptr2=bp1;
|
||||
ptr1=(ptr3=bp2)+c;
|
||||
for (u=0;u<=c;u++)
|
||||
*(ptr2++)=((*(ptr3++)-(((*target)*(*(ptr1--)))>>12))*(0x1000000/b))>>12;
|
||||
*(--target)=u=bp1[(c--)];
|
||||
if ((u+0x1000)>0x1fff) retval=1;
|
||||
temp=bp2;
|
||||
bp2=bp1;
|
||||
bp1=temp;
|
||||
}
|
||||
return retval;
|
||||
}
|
||||
@ -1,64 +0,0 @@
|
||||
#ifndef DECODE144_H
|
||||
#define DECODE144_H
|
||||
|
||||
/* internal globals */
|
||||
typedef struct {
|
||||
unsigned int resetflag, val, oldval;
|
||||
unsigned int unpacked[28]; /* buffer for unpacked input */
|
||||
unsigned int *iptr; /* pointer to current input (from unpacked) */
|
||||
unsigned int gval;
|
||||
unsigned short *gsp;
|
||||
unsigned int gbuf1[8];
|
||||
unsigned short gbuf2[120];
|
||||
signed short output_buffer[40];
|
||||
unsigned int *decptr; /* decoder ptr */
|
||||
signed short *decsp;
|
||||
|
||||
/* the swapped buffers */
|
||||
unsigned int swapb1a[10];
|
||||
unsigned int swapb2a[10];
|
||||
unsigned int swapb1b[10];
|
||||
unsigned int swapb2b[10];
|
||||
unsigned int *swapbuf1;
|
||||
unsigned int *swapbuf2;
|
||||
unsigned int *swapbuf1alt;
|
||||
unsigned int *swapbuf2alt;
|
||||
|
||||
unsigned int buffer[5];
|
||||
unsigned short int buffer_2[148];
|
||||
unsigned short int buffer_a[40];
|
||||
unsigned short int buffer_b[40];
|
||||
unsigned short int buffer_c[40];
|
||||
unsigned short int buffer_d[40];
|
||||
|
||||
unsigned short int work[50];
|
||||
unsigned short *sptr;
|
||||
|
||||
int buffer1[10];
|
||||
int buffer2[10];
|
||||
|
||||
signed short wavtable1[2304];
|
||||
unsigned short wavtable2[2304];
|
||||
} Real_internal;
|
||||
|
||||
/* consts */
|
||||
#define NBLOCKS 4 /* number of segments within a block */
|
||||
#define BLOCKSIZE 40 /* (quarter) block size in 16-bit words (80 bytes) */
|
||||
#define HALFBLOCK 20 /* BLOCKSIZE/2 */
|
||||
#define BUFFERSIZE 146 /* for do_output */
|
||||
|
||||
/* prototypes */
|
||||
static int t_sqrt (unsigned int x);
|
||||
static void do_voice (int *a1, int *a2);
|
||||
static void do_output_subblock (Real_internal *glob, int x);
|
||||
static void rotate_block (short *source, short *target, int offset);
|
||||
static int irms (short *data, int factor);
|
||||
static void add_wav (Real_internal *glob, int n, int f, int m1, int m2, int m3, short *s1, short *s2, short *s3, short *dest);
|
||||
static void final (Real_internal *glob, short *i1, short *i2, void *out, int *statbuf, int len);
|
||||
static void unpack_input (unsigned char *input, unsigned int *output);
|
||||
static unsigned int rms (int *data, int f);
|
||||
static void dec1 (Real_internal *glob, int *data, int *inp, int n, int f);
|
||||
static void dec2 (Real_internal *glob, int *data, int *inp, int n, int f, int *inp2, int l);
|
||||
static int eq (Real_internal *glob, short *in, int *target);
|
||||
|
||||
#endif /* !DECODE144_H */
|
||||
@ -1,217 +0,0 @@
|
||||
#include "common1428.h"
|
||||
#include "decode288.h"
|
||||
#include "tables288.h"
|
||||
|
||||
/* Initialize internal variable structure */
|
||||
Real_288 *init_288(void)
|
||||
{
|
||||
Real_internal *glob;
|
||||
|
||||
if ((glob=malloc(sizeof(Real_internal))))
|
||||
memset(glob,0,sizeof(Real_internal));
|
||||
|
||||
return (Real_288 *)glob;
|
||||
}
|
||||
|
||||
/* Free internal variable structure */
|
||||
void free_288(Real_288 *global)
|
||||
{
|
||||
if (!global) return;
|
||||
free(global);
|
||||
}
|
||||
|
||||
/* Unlike the 14.4 format, 28.8 blocks are interleaved */
|
||||
/* to dilute the effects of transmission errors */
|
||||
void deinterleave(unsigned char *in, unsigned char *out, unsigned int size)
|
||||
{
|
||||
unsigned int x=0,y=0,z=0;
|
||||
if (size>=38) z=size-38;
|
||||
else return;
|
||||
|
||||
while (x<=z)
|
||||
{
|
||||
memcpy(out+y,in+x,38);
|
||||
x+=38;y+=456;
|
||||
if (y>z) y-=z;
|
||||
}
|
||||
}
|
||||
|
||||
/* Decode a block (celp) */
|
||||
void decode_288(Real_288 *global, unsigned char *in, signed short int *out)
|
||||
{
|
||||
int x,y;
|
||||
unsigned short int buffer[32];
|
||||
Real_internal *glob;
|
||||
|
||||
if (!global) return;
|
||||
glob = (Real_internal *)global;
|
||||
|
||||
unpack(buffer,in,32);
|
||||
for (x=0;x<32;x++)
|
||||
{
|
||||
glob->phasep=(glob->phase=x&7)*5;
|
||||
decode(glob,buffer[x]);
|
||||
for (y=0;y<5;*(out++)=8*glob->output[glob->phasep+(y++)]);
|
||||
if (glob->phase==3) update(glob);
|
||||
}
|
||||
}
|
||||
|
||||
/* initial decode */
|
||||
static void unpack(unsigned short *tgt, unsigned char *src, int len)
|
||||
{
|
||||
int x,y,z;
|
||||
int n,temp;
|
||||
int buffer[38];
|
||||
|
||||
for (x=0;x<len;tgt[x++]=0)
|
||||
buffer[x]=9+(x&1);
|
||||
|
||||
for (x=y=z=0;x<38;x++) {
|
||||
n=buffer[y]-z;
|
||||
temp=src[x];
|
||||
if (n<8) temp&=255>>(8-n);
|
||||
tgt[y]+=temp<<z;
|
||||
if (n<=8) {
|
||||
tgt[++y]+=src[x]>>n;
|
||||
z=8-n;
|
||||
} else z+=8;
|
||||
}
|
||||
}
|
||||
|
||||
static void update(Real_internal *glob)
|
||||
{
|
||||
int x,y;
|
||||
float buffer1[40],temp1[37];
|
||||
float buffer2[8],temp2[11];
|
||||
|
||||
for (x=0,y=glob->phasep+5;x<40;buffer1[x++]=glob->output[(y++)%40]);
|
||||
co(36,40,35,buffer1,temp1,glob->st1a,glob->st1b,table1);
|
||||
if (pred(temp1,glob->st1,36))
|
||||
colmult(glob->pr1,glob->st1,table1a,36);
|
||||
|
||||
for (x=0,y=glob->phase+1;x<8;buffer2[x++]=glob->history[(y++)%8]);
|
||||
co(10,8,20,buffer2,temp2,glob->st2a,glob->st2b,table2);
|
||||
if (pred(temp2,glob->st2,10))
|
||||
colmult(glob->pr2,glob->st2,table2a,10);
|
||||
}
|
||||
|
||||
/* Decode and produce output */
|
||||
static void decode(Real_internal *glob, unsigned int input)
|
||||
{
|
||||
unsigned int x,y;
|
||||
float f;
|
||||
double sum,sumsum;
|
||||
float *p1,*p2;
|
||||
float buffer[5];
|
||||
const float *table;
|
||||
|
||||
for (x=36;x--;glob->sb[x+5]=glob->sb[x]);
|
||||
for (x=5;x--;) {
|
||||
p1=glob->sb+x;p2=glob->pr1;
|
||||
for (sum=0,y=36;y--;sum-=(*(++p1))*(*(p2++)));
|
||||
glob->sb[x]=sum;
|
||||
}
|
||||
|
||||
f=amptable[input&7];
|
||||
table=codetable+(input>>3)*5;
|
||||
|
||||
/* convert log and do rms */
|
||||
for (sum=32,x=10;x--;sum-=glob->pr2[x]*glob->lhist[x]);
|
||||
if (sum<0) sum=0; else if (sum>60) sum=60;
|
||||
|
||||
sumsum=exp(sum*0.1151292546497)*f; /* pow(10.0,sum/20)*f */
|
||||
for (sum=0,x=5;x--;) { buffer[x]=table[x]*sumsum; sum+=buffer[x]*buffer[x]; }
|
||||
if ((sum/=5)<1) sum=1;
|
||||
|
||||
/* shift and store */
|
||||
for (x=10;--x;glob->lhist[x]=glob->lhist[x-1]);
|
||||
*glob->lhist=glob->history[glob->phase]=10*log10(sum)-32;
|
||||
|
||||
for (x=1;x<5;x++) for (y=x;y--;buffer[x]-=glob->pr1[x-y-1]*buffer[y]);
|
||||
|
||||
/* output */
|
||||
for (x=0;x<5;x++) {
|
||||
f=glob->sb[4-x]+buffer[x];
|
||||
if (f>4095) f=4095; else if (f<-4095) f=-4095;
|
||||
glob->output[glob->phasep+x]=glob->sb[4-x]=f;
|
||||
}
|
||||
}
|
||||
|
||||
/* column multiply */
|
||||
static void colmult(float *tgt, float *m1, const float *m2, int n)
|
||||
{
|
||||
while (n--)
|
||||
*(tgt++)=(*(m1++))*(*(m2++));
|
||||
}
|
||||
|
||||
static int pred(float *in, float *tgt, int n)
|
||||
{
|
||||
int x,y;
|
||||
float *p1,*p2;
|
||||
double f0,f1,f2;
|
||||
float temp;
|
||||
|
||||
if (in[n]==0) return 0;
|
||||
if ((f0=*in)<=0) return 0;
|
||||
|
||||
for (x=1;;x++) {
|
||||
if (n<x) return 1;
|
||||
|
||||
p1=in+x;
|
||||
p2=tgt;
|
||||
f1=*(p1--);
|
||||
for (y=x;--y;f1+=(*(p1--))*(*(p2++)));
|
||||
|
||||
p1=tgt+x-1;
|
||||
p2=tgt;
|
||||
*(p1--)=f2=-f1/f0;
|
||||
for (y=x>>1;y--;) {
|
||||
temp=*p2+*p1*f2;
|
||||
*(p1--)+=*p2*f2;
|
||||
*(p2++)=temp;
|
||||
}
|
||||
if ((f0+=f1*f2)<0) return 0;
|
||||
}
|
||||
}
|
||||
|
||||
static void co(int n, int i, int j, float *in, float *out, float *st1, float *st2, const float *table)
|
||||
{
|
||||
int a,b,c;
|
||||
unsigned int x;
|
||||
float *fp,*fp2;
|
||||
float buffer1[37];
|
||||
float buffer2[37];
|
||||
float work[111];
|
||||
|
||||
/* rotate and multiply */
|
||||
c=(b=(a=n+i)+j)-i;
|
||||
fp=st1+i;
|
||||
for (x=0;x<b;x++) {
|
||||
if (x==c) fp=in;
|
||||
work[x]=*(table++)*(*(st1++)=*(fp++));
|
||||
}
|
||||
|
||||
prodsum(buffer1,work+n,i,n);
|
||||
prodsum(buffer2,work+a,j,n);
|
||||
|
||||
for (x=0;x<=n;x++) {
|
||||
*st2=*st2*(0.5625)+buffer1[x];
|
||||
out[x]=*(st2++)+buffer2[x];
|
||||
}
|
||||
*out*=1.00390625; /* to prevent clipping */
|
||||
}
|
||||
|
||||
/* product sum (lsf) */
|
||||
static void prodsum(float *tgt, float *src, int len, int n)
|
||||
{
|
||||
unsigned int x;
|
||||
float *p1,*p2;
|
||||
double sum;
|
||||
|
||||
while (n>=0)
|
||||
{
|
||||
p1=(p2=src)-n;
|
||||
for (sum=0,x=len;x--;sum+=(*p1++)*(*p2++));
|
||||
tgt[n--]=sum;
|
||||
}
|
||||
}
|
||||
@ -1,27 +0,0 @@
|
||||
#ifndef DECODE288_H
|
||||
#define DECODE288_H
|
||||
|
||||
/* internal globals */
|
||||
typedef struct {
|
||||
float history[8];
|
||||
float output[40];
|
||||
float pr1[36];
|
||||
float pr2[10];
|
||||
int phase, phasep;
|
||||
|
||||
float st1a[111],st1b[37],st1[37];
|
||||
float st2a[38],st2b[11],st2[11];
|
||||
float sb[41];
|
||||
float lhist[10];
|
||||
} Real_internal;
|
||||
|
||||
/* prototypes */
|
||||
static void unpack (unsigned short *tgt, unsigned char *src, int len);
|
||||
static void decode (Real_internal *internal, unsigned int input);
|
||||
static void update (Real_internal *internal);
|
||||
static void colmult (float *tgt, float *m1, const float *m2, int n);
|
||||
static int pred (float *in, float *tgt, int n);
|
||||
static void co (int n, int i, int j, float *in, float *out, float *st1, float *st2, const float *table);
|
||||
static void prodsum (float *tgt, float *src, int len, int n);
|
||||
|
||||
#endif /* !DECODE288_H */
|
||||
Loading…
Reference in New Issue
Block a user