mirror of https://github.com/mpv-player/mpv
85 lines
1.8 KiB
C
85 lines
1.8 KiB
C
#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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#ifdef USE_MP3LIB
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#include "ad_internal.h"
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static ad_info_t info =
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{
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"MPEG layer-2, layer-3",
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"mp3lib",
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"Nick Kurshev",
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"mpg123",
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"Optimized to MMX/SSE/3Dnow!"
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};
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LIBAD_EXTERN(mp3lib)
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#include "../mp3lib/mp3.h"
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extern int fakemono;
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static sh_audio_t* dec_audio_sh=NULL;
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// MP3 decoder buffer callback:
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int mplayer_audio_read(char *buf,int size){
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return demux_read_data(dec_audio_sh->ds,buf,size);
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}
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static int preinit(sh_audio_t *sh)
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{
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sh->audio_out_minsize=32*36*2*2; //4608;
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return 1;
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}
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static int init(sh_audio_t *sh)
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{
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// MPEG Audio:
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dec_audio_sh=sh; // save sh_audio for the callback:
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// MP3_Init(fakemono,mplayer_accel,&mplayer_audio_read); // TODO!!!
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#ifdef USE_FAKE_MONO
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MP3_Init(fakemono);
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#else
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MP3_Init();
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#endif
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MP3_samplerate=MP3_channels=0;
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MP3_DecodeFrame(NULL,-2); // FIXME: skip the first frame (often trashed)
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sh->a_buffer_len=MP3_DecodeFrame(sh->a_buffer,-1);
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if(!sh->a_buffer_len) return 0; // unsupported layer/format
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sh->channels=2; // hack
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sh->samplesize=2;
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sh->samplerate=MP3_samplerate;
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sh->i_bps=MP3_bitrate*(1000/8);
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MP3_PrintHeader();
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return 1;
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}
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static void uninit(sh_audio_t *sh)
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{
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}
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static int control(sh_audio_t *sh,int cmd,void* arg, ...)
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{
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switch(cmd)
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{
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case ADCTRL_RESYNC_STREAM:
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MP3_DecodeFrame(NULL,-2); // resync
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MP3_DecodeFrame(NULL,-2); // resync
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MP3_DecodeFrame(NULL,-2); // resync
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return CONTROL_TRUE;
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case ADCTRL_SKIP_FRAME:
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MP3_DecodeFrame(NULL,-2); // skip MPEG frame
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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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static int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen)
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{
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return MP3_DecodeFrame(buf,-1);
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}
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#endif
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