mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 16:33:02 +00:00
84157efa5a
against instead of directly #including the C file and replace the many extern declarations by a proper header file. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24262 b3059339-0415-0410-9bf9-f77b7e298cf2
448 lines
15 KiB
C
448 lines
15 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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#include "mp_msg.h"
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#include "help_mp.h"
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#include "stream/stream.h"
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#include "libmpdemux/demuxer.h"
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#include "codec-cfg.h"
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#include "libmpdemux/stheader.h"
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#include "dec_audio.h"
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#include "ad.h"
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#include "libaf/af_format.h"
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#include "libaf/af.h"
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#ifdef HAVE_MALLOC_H
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#include <malloc.h>
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#endif
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#ifdef DYNAMIC_PLUGINS
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#include <dlfcn.h>
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#endif
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#ifdef USE_FAKE_MONO
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int fakemono=0;
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#endif
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/* used for ac3surround decoder - set using -channels option */
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int audio_output_channels = 2;
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af_cfg_t af_cfg = {1, NULL}; // Configuration for audio filters
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void afm_help(void){
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int i;
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mp_msg(MSGT_DECAUDIO,MSGL_INFO,MSGTR_AvailableAudioFm);
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_DRIVERS\n");
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mp_msg(MSGT_DECAUDIO,MSGL_INFO," afm: info: (comment)\n");
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for (i=0; mpcodecs_ad_drivers[i] != NULL; i++)
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if(mpcodecs_ad_drivers[i]->info->comment && mpcodecs_ad_drivers[i]->info->comment[0])
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mp_msg(MSGT_DECAUDIO,MSGL_INFO,"%9s %s (%s)\n",
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mpcodecs_ad_drivers[i]->info->short_name,
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mpcodecs_ad_drivers[i]->info->name,
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mpcodecs_ad_drivers[i]->info->comment);
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else
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mp_msg(MSGT_DECAUDIO,MSGL_INFO,"%9s %s\n",
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mpcodecs_ad_drivers[i]->info->short_name,
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mpcodecs_ad_drivers[i]->info->name);
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}
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int init_audio_codec(sh_audio_t *sh_audio)
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{
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if ((af_cfg.force & AF_INIT_FORMAT_MASK) == AF_INIT_FLOAT) {
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int fmt = AF_FORMAT_FLOAT_NE;
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if (sh_audio->ad_driver->control(sh_audio, ADCTRL_QUERY_FORMAT,
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&fmt) == CONTROL_TRUE) {
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sh_audio->sample_format = fmt;
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sh_audio->samplesize = 4;
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}
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}
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if(!sh_audio->ad_driver->preinit(sh_audio))
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{
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mp_msg(MSGT_DECAUDIO,MSGL_ERR,MSGTR_ADecoderPreinitFailed);
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return 0;
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}
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/* allocate audio in buffer: */
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if(sh_audio->audio_in_minsize>0){
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sh_audio->a_in_buffer_size=sh_audio->audio_in_minsize;
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mp_msg(MSGT_DECAUDIO,MSGL_V,MSGTR_AllocatingBytesForInputBuffer,
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sh_audio->a_in_buffer_size);
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sh_audio->a_in_buffer=memalign(16,sh_audio->a_in_buffer_size);
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memset(sh_audio->a_in_buffer,0,sh_audio->a_in_buffer_size);
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sh_audio->a_in_buffer_len=0;
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}
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/* allocate audio out buffer: */
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sh_audio->a_buffer_size=sh_audio->audio_out_minsize+MAX_OUTBURST; /* worst case calc.*/
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mp_msg(MSGT_DECAUDIO,MSGL_V,MSGTR_AllocatingBytesForOutputBuffer,
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sh_audio->audio_out_minsize,MAX_OUTBURST,sh_audio->a_buffer_size);
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sh_audio->a_buffer=memalign(16,sh_audio->a_buffer_size);
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if(!sh_audio->a_buffer){
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mp_msg(MSGT_DECAUDIO,MSGL_ERR,MSGTR_CantAllocAudioBuf);
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return 0;
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}
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memset(sh_audio->a_buffer,0,sh_audio->a_buffer_size);
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sh_audio->a_buffer_len=0;
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if(!sh_audio->ad_driver->init(sh_audio)){
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mp_msg(MSGT_DECAUDIO,MSGL_WARN,MSGTR_ADecoderInitFailed);
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uninit_audio(sh_audio); // free buffers
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return 0;
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}
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sh_audio->inited=1;
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if(!sh_audio->channels || !sh_audio->samplerate){
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mp_msg(MSGT_DECAUDIO,MSGL_WARN,MSGTR_UnknownAudio);
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uninit_audio(sh_audio); // free buffers
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return 0;
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}
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if(!sh_audio->o_bps)
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sh_audio->o_bps=sh_audio->channels*sh_audio->samplerate*sh_audio->samplesize;
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mp_msg(MSGT_DECAUDIO,MSGL_INFO,"AUDIO: %d Hz, %d ch, %s, %3.1f kbit/%3.2f%% (ratio: %d->%d)\n",
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sh_audio->samplerate,sh_audio->channels,
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af_fmt2str_short(sh_audio->sample_format),
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sh_audio->i_bps*8*0.001,((float)sh_audio->i_bps/sh_audio->o_bps)*100.0,
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sh_audio->i_bps,sh_audio->o_bps);
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mp_msg(MSGT_IDENTIFY,MSGL_INFO,"ID_AUDIO_BITRATE=%d\nID_AUDIO_RATE=%d\n"
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"ID_AUDIO_NCH=%d\n", sh_audio->i_bps*8, sh_audio->samplerate,
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sh_audio->channels );
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sh_audio->a_out_buffer_size=sh_audio->a_buffer_size;
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sh_audio->a_out_buffer=sh_audio->a_buffer;
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sh_audio->a_out_buffer_len=sh_audio->a_buffer_len;
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return 1;
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}
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int init_audio(sh_audio_t *sh_audio,char* codecname,char* afm,int status){
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unsigned int orig_fourcc=sh_audio->wf?sh_audio->wf->wFormatTag:0;
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int force = 0;
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if (codecname && codecname[0] == '+') {
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codecname = &codecname[1];
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force = 1;
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}
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sh_audio->codec=NULL;
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while(1){
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ad_functions_t* mpadec;
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int i;
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sh_audio->ad_driver = 0;
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// restore original fourcc:
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if(sh_audio->wf) sh_audio->wf->wFormatTag=i=orig_fourcc;
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if(!(sh_audio->codec=find_audio_codec(sh_audio->format,
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sh_audio->wf?(&i):NULL, sh_audio->codec, force) )) break;
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if(sh_audio->wf) sh_audio->wf->wFormatTag=i;
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// ok we found one codec
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if(sh_audio->codec->flags&CODECS_FLAG_SELECTED) continue; // already tried & failed
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if(codecname && strcmp(sh_audio->codec->name,codecname)) continue; // -ac
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if(afm && strcmp(sh_audio->codec->drv,afm)) continue; // afm doesn't match
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if(!force && sh_audio->codec->status<status) continue; // too unstable
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sh_audio->codec->flags|=CODECS_FLAG_SELECTED; // tagging it
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// ok, it matches all rules, let's find the driver!
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for (i=0; mpcodecs_ad_drivers[i] != NULL; i++)
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if(!strcmp(mpcodecs_ad_drivers[i]->info->short_name,sh_audio->codec->drv)) break;
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mpadec=mpcodecs_ad_drivers[i];
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#ifdef DYNAMIC_PLUGINS
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if (!mpadec)
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{
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/* try to open shared decoder plugin */
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int buf_len;
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char *buf;
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ad_functions_t *funcs_sym;
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ad_info_t *info_sym;
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buf_len = strlen(MPLAYER_LIBDIR)+strlen(sh_audio->codec->drv)+16;
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buf = malloc(buf_len);
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if (!buf)
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break;
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snprintf(buf, buf_len, "%s/mplayer/ad_%s.so", MPLAYER_LIBDIR, sh_audio->codec->drv);
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mp_msg(MSGT_DECAUDIO, MSGL_DBG2, "Trying to open external plugin: %s\n", buf);
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sh_audio->dec_handle = dlopen(buf, RTLD_LAZY);
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if (!sh_audio->dec_handle)
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break;
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snprintf(buf, buf_len, "mpcodecs_ad_%s", sh_audio->codec->drv);
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funcs_sym = dlsym(sh_audio->dec_handle, buf);
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if (!funcs_sym || !funcs_sym->info || !funcs_sym->preinit ||
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!funcs_sym->init || !funcs_sym->uninit || !funcs_sym->control ||
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!funcs_sym->decode_audio)
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break;
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info_sym = funcs_sym->info;
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if (strcmp(info_sym->short_name, sh_audio->codec->drv))
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break;
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free(buf);
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mpadec = funcs_sym;
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mp_msg(MSGT_DECAUDIO, MSGL_V, "Using external decoder plugin (%s/mplayer/ad_%s.so)!\n",
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MPLAYER_LIBDIR, sh_audio->codec->drv);
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}
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#endif
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if(!mpadec){ // driver not available (==compiled in)
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mp_msg(MSGT_DECAUDIO,MSGL_ERR,MSGTR_AudioCodecFamilyNotAvailableStr,
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sh_audio->codec->name, sh_audio->codec->drv);
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continue;
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}
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// it's available, let's try to init!
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// init()
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mp_msg(MSGT_DECAUDIO,MSGL_INFO,MSGTR_OpeningAudioDecoder,mpadec->info->short_name,mpadec->info->name);
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sh_audio->ad_driver = mpadec;
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if(!init_audio_codec(sh_audio)){
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mp_msg(MSGT_DECAUDIO,MSGL_INFO,MSGTR_ADecoderInitFailed);
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continue; // try next...
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}
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// Yeah! We got it!
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return 1;
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}
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return 0;
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}
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int init_best_audio_codec(sh_audio_t *sh_audio,char** audio_codec_list,char** audio_fm_list){
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char* ac_l_default[2]={"",(char*)NULL};
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// hack:
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if(!audio_codec_list) audio_codec_list=ac_l_default;
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// Go through the codec.conf and find the best codec...
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sh_audio->inited=0;
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codecs_reset_selection(1);
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while(!sh_audio->inited && *audio_codec_list){
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char* audio_codec=*(audio_codec_list++);
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if(audio_codec[0]){
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if(audio_codec[0]=='-'){
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// disable this codec:
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select_codec(audio_codec+1,1);
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} else {
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// forced codec by name:
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mp_msg(MSGT_DECAUDIO,MSGL_INFO,MSGTR_ForcedAudioCodec,audio_codec);
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init_audio(sh_audio,audio_codec,NULL,-1);
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}
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} else {
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int status;
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// try in stability order: UNTESTED, WORKING, BUGGY. never try CRASHING.
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if(audio_fm_list){
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char** fmlist=audio_fm_list;
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// try first the preferred codec families:
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while(!sh_audio->inited && *fmlist){
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char* audio_fm=*(fmlist++);
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mp_msg(MSGT_DECAUDIO,MSGL_INFO,MSGTR_TryForceAudioFmtStr,audio_fm);
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for(status=CODECS_STATUS__MAX;status>=CODECS_STATUS__MIN;--status)
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if(init_audio(sh_audio,NULL,audio_fm,status)) break;
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}
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}
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if(!sh_audio->inited)
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for(status=CODECS_STATUS__MAX;status>=CODECS_STATUS__MIN;--status)
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if(init_audio(sh_audio,NULL,NULL,status)) break;
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}
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}
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if(!sh_audio->inited){
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mp_msg(MSGT_DECAUDIO,MSGL_ERR,MSGTR_CantFindAudioCodec,sh_audio->format);
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mp_msg(MSGT_DECAUDIO,MSGL_HINT, MSGTR_RTFMCodecs);
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return 0; // failed
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}
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mp_msg(MSGT_DECAUDIO,MSGL_INFO,MSGTR_SelectedAudioCodec,
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sh_audio->codec->name,sh_audio->codec->drv,sh_audio->codec->info);
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return 1; // success
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}
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void uninit_audio(sh_audio_t *sh_audio)
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{
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if(sh_audio->afilter){
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mp_msg(MSGT_DECAUDIO,MSGL_V,"Uninit audio filters...\n");
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af_uninit(sh_audio->afilter);
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free(sh_audio->afilter);
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sh_audio->afilter=NULL;
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}
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if(sh_audio->inited){
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mp_msg(MSGT_DECAUDIO,MSGL_V,MSGTR_UninitAudioStr,sh_audio->codec->drv);
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sh_audio->ad_driver->uninit(sh_audio);
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#ifdef DYNAMIC_PLUGINS
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if (sh_audio->dec_handle)
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dlclose(sh_audio->dec_handle);
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#endif
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sh_audio->inited=0;
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}
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if(sh_audio->a_out_buffer!=sh_audio->a_buffer) free(sh_audio->a_out_buffer);
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sh_audio->a_out_buffer=NULL;
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sh_audio->a_out_buffer_size=0;
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if(sh_audio->a_buffer) free(sh_audio->a_buffer);
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sh_audio->a_buffer=NULL;
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if(sh_audio->a_in_buffer) free(sh_audio->a_in_buffer);
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sh_audio->a_in_buffer=NULL;
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}
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/* Init audio filters */
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int preinit_audio_filters(sh_audio_t *sh_audio,
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int in_samplerate, int in_channels, int in_format,
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int* out_samplerate, int* out_channels, int* out_format){
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return init_audio_filters(sh_audio, in_samplerate, in_channels, in_format,
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out_samplerate, out_channels, out_format, 0, 0);
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}
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/* Init audio filters */
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int init_audio_filters(sh_audio_t *sh_audio,
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int in_samplerate, int in_channels, int in_format,
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int *out_samplerate, int *out_channels, int *out_format,
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int out_minsize, int out_maxsize){
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af_stream_t* afs=sh_audio->afilter;
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if(!afs){
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afs = malloc(sizeof(af_stream_t));
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memset(afs,0,sizeof(af_stream_t));
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}
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// input format: same as codec's output format:
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afs->input.rate = in_samplerate;
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afs->input.nch = in_channels;
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afs->input.format = in_format;
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af_fix_parameters(&(afs->input));
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// output format: same as ao driver's input format (if missing, fallback to input)
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afs->output.rate = *out_samplerate;
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afs->output.nch = *out_channels;
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afs->output.format = *out_format;
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af_fix_parameters(&(afs->output));
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// filter config:
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memcpy(&afs->cfg,&af_cfg,sizeof(af_cfg_t));
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mp_msg(MSGT_DECAUDIO, MSGL_V, MSGTR_BuildingAudioFilterChain,
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afs->input.rate,afs->input.nch,af_fmt2str_short(afs->input.format),
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afs->output.rate,afs->output.nch,af_fmt2str_short(afs->output.format));
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// let's autoprobe it!
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if(0 != af_init(afs)){
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sh_audio->afilter=NULL;
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free(afs);
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return 0; // failed :(
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}
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*out_samplerate=afs->output.rate;
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*out_channels=afs->output.nch;
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*out_format=afs->output.format;
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if (out_maxsize || out_minsize) {
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// allocate the a_out_* buffers:
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if(out_maxsize<out_minsize) out_maxsize=out_minsize;
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if(out_maxsize<8192) out_maxsize=MAX_OUTBURST; // not sure this is ok
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sh_audio->a_out_buffer_size=out_maxsize;
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if (sh_audio->a_out_buffer != sh_audio->a_buffer)
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free(sh_audio->a_out_buffer);
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sh_audio->a_out_buffer=memalign(16,sh_audio->a_out_buffer_size);
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memset(sh_audio->a_out_buffer,0,sh_audio->a_out_buffer_size);
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sh_audio->a_out_buffer_len=0;
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}
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// ok!
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sh_audio->afilter=(void*)afs;
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return 1;
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}
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int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen)
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{
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int declen;
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af_data_t afd; // filter input
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af_data_t* pafd; // filter output
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ad_functions_t* mpadec = sh_audio->ad_driver;
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if(!sh_audio->inited) return -1; // no codec
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if(!sh_audio->afilter){
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// no filter, just decode:
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// FIXME: don't drop initial decoded data in a_buffer!
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return mpadec->decode_audio(sh_audio,buf,minlen,maxlen);
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}
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// declen=af_inputlen(sh_audio->afilter,minlen);
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declen=af_calc_insize_constrained(sh_audio->afilter,minlen,maxlen,
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sh_audio->a_buffer_size-sh_audio->audio_out_minsize);
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mp_msg(MSGT_DECAUDIO,MSGL_DBG2,"\ndecaudio: minlen=%d maxlen=%d declen=%d (max=%d)\n",
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minlen, maxlen, declen, sh_audio->a_buffer_size);
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if(declen<=0) return -1; // error!
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// limit declen to buffer size: - DONE by af_calc_insize_constrained
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// if(declen>sh_audio->a_buffer_size) declen=sh_audio->a_buffer_size;
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// decode if needed:
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while(declen>sh_audio->a_buffer_len){
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int len=declen-sh_audio->a_buffer_len;
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int maxlen=sh_audio->a_buffer_size-sh_audio->a_buffer_len;
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mp_msg(MSGT_DECAUDIO,MSGL_DBG2,"decaudio: decoding %d bytes, max: %d (%d)\n",
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len, maxlen, sh_audio->audio_out_minsize);
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// When a decoder sets audio_out_minsize that should guarantee it can
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// write up to audio_out_minsize bytes at a time until total >= minlen
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// without checking maxlen. Thus maxlen must be at least minlen +
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// audio_out_minsize. Check that to guard against buffer overflows.
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if (maxlen < len + sh_audio->audio_out_minsize)
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break;
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// not enough decoded data waiting, decode 'len' bytes more:
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len=mpadec->decode_audio(sh_audio,
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sh_audio->a_buffer+sh_audio->a_buffer_len, len, maxlen);
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if(len<=0) break; // EOF?
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sh_audio->a_buffer_len+=len;
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}
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if(declen>sh_audio->a_buffer_len)
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declen=sh_audio->a_buffer_len; // still no enough data (EOF) :(
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// round to whole samples:
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// declen/=sh_audio->samplesize*sh_audio->channels;
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// declen*=sh_audio->samplesize*sh_audio->channels;
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// run the filters:
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afd.audio=sh_audio->a_buffer;
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afd.len=declen;
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afd.rate=sh_audio->samplerate;
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afd.nch=sh_audio->channels;
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afd.format=sh_audio->sample_format;
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af_fix_parameters(&afd);
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//pafd=&afd;
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// printf("\nAF: %d --> ",declen);
|
|
pafd=af_play(sh_audio->afilter,&afd);
|
|
// printf("%d \n",pafd->len);
|
|
|
|
if(!pafd) return -1; // error
|
|
|
|
mp_msg(MSGT_DECAUDIO,MSGL_DBG2,"decaudio: declen=%d out=%d (max %d)\n",
|
|
declen, pafd->len, maxlen);
|
|
|
|
// copy filter==>out:
|
|
if(maxlen < pafd->len) {
|
|
af_stream_t *afs = sh_audio->afilter;
|
|
maxlen -= maxlen % (afs->output.nch * afs->output.bps);
|
|
mp_msg(MSGT_DECAUDIO,MSGL_WARN,"%i bytes of audio data lost due to buffer overflow, len = %i\n", pafd->len - maxlen,pafd->len);
|
|
}
|
|
else
|
|
maxlen=pafd->len;
|
|
memmove(buf, pafd->audio, maxlen);
|
|
|
|
// remove processed data from decoder buffer:
|
|
sh_audio->a_buffer_len-=declen;
|
|
if(sh_audio->a_buffer_len>0)
|
|
memmove(sh_audio->a_buffer, sh_audio->a_buffer+declen, sh_audio->a_buffer_len);
|
|
|
|
return maxlen;
|
|
}
|
|
|
|
void resync_audio_stream(sh_audio_t *sh_audio)
|
|
{
|
|
sh_audio->a_in_buffer_len=0; // clear audio input buffer
|
|
if(!sh_audio->inited) return;
|
|
sh_audio->ad_driver->control(sh_audio,ADCTRL_RESYNC_STREAM,NULL);
|
|
}
|
|
|
|
void skip_audio_frame(sh_audio_t *sh_audio)
|
|
{
|
|
if(!sh_audio->inited) return;
|
|
if(sh_audio->ad_driver->control(sh_audio,ADCTRL_SKIP_FRAME,NULL)==CONTROL_TRUE) return;
|
|
// default skip code:
|
|
ds_fill_buffer(sh_audio->ds); // skip block
|
|
}
|