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mirror of https://github.com/mpv-player/mpv synced 2025-01-09 01:36:25 +01:00
mpv/libmpcodecs/ad_mp3lib.c
Uoti Urpala b0986b3760 Merge svn changes up to r30463
Note that r30455 is wrong, that commit does not in fact change the
default behavior as claimed in the commit message. It only breaks
"-af-adv force=0", which was already pretty much useless though.
2010-03-09 18:59:15 +02:00

101 lines
2.4 KiB
C

/*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "config.h"
#include "ad_internal.h"
#include "ad_mp3lib.h"
static const ad_info_t info =
{
"MPEG layer-2, layer-3",
"mp3lib",
"Nick Kurshev",
"mpg123",
"Optimized to MMX/SSE/3Dnow!"
};
LIBAD_EXTERN(mp3lib)
#include "mp3lib/mp3.h"
extern int fakemono;
static sh_audio_t* dec_audio_sh=NULL;
// MP3 decoder buffer callback:
int mplayer_audio_read(char *buf,int size){
return demux_read_data(dec_audio_sh->ds,buf,size);
}
static int preinit(sh_audio_t *sh)
{
sh->audio_out_minsize=32*36*2*2; //4608;
return 1;
}
static int init(sh_audio_t *sh)
{
// MPEG Audio:
dec_audio_sh=sh; // save sh_audio for the callback:
// MP3_Init(fakemono,mplayer_accel,&mplayer_audio_read); // TODO!!!
#ifdef CONFIG_FAKE_MONO
MP3_Init(fakemono);
#else
MP3_Init();
#endif
MP3_samplerate=MP3_channels=0;
sh->a_buffer_len=MP3_DecodeFrame(sh->a_buffer,-1);
if(!sh->a_buffer_len) return 0; // unsupported layer/format
sh->channels=2; // hack
sh->samplesize=2;
sh->samplerate=MP3_samplerate;
sh->i_bps=MP3_bitrate*(1000/8);
MP3_PrintHeader();
return 1;
}
static void uninit(sh_audio_t *sh)
{
}
static int control(sh_audio_t *sh,int cmd,void* arg, ...)
{
switch(cmd)
{
case ADCTRL_RESYNC_STREAM:
MP3_DecodeFrame(NULL,-2); // resync
MP3_DecodeFrame(NULL,-2); // resync
MP3_DecodeFrame(NULL,-2); // resync
return CONTROL_TRUE;
case ADCTRL_SKIP_FRAME:
MP3_DecodeFrame(NULL,-2); // skip MPEG frame
return CONTROL_TRUE;
}
return CONTROL_UNKNOWN;
}
static int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen)
{
return MP3_DecodeFrame(buf,-1);
}