libmpcodecs/ad_acm.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <unistd.h>
  22
  23 #include "config.h"
  24 #include "mp_msg.h"
  25 #include "help_mp.h"
  26 #include "libmpdemux/aviprint.h"
  27 #include "loader/wineacm.h"
  28
  29 #include "ad_internal.h"
  30 #include "osdep/timer.h"
  31
  32 static const ad_info_t info =
  33 {
  34         "Win32/ACM decoders",
  35         "acm",
  36         "A'rpi",
  37         "A'rpi & Alex",
  38         ""
  39 };
  40
  41 LIBAD_EXTERN(acm)
  42
  43 typedef struct {
  44     WAVEFORMATEX *o_wf;
  45     HACMSTREAM handle;
  46 } acm_context_t;
  47
  48 static int init(sh_audio_t *sh_audio)
  49 {
  50     int ret=decode_audio(sh_audio,sh_audio->a_buffer,4096,sh_audio->a_buffer_size);
  51     if(ret<0){
  52         mp_msg(MSGT_DECAUDIO,MSGL_INFO,"ACM decoding error: %d\n",ret);
  53         return 0;
  54     }
  55     sh_audio->a_buffer_len=ret;
  56   return 1;
  57 }
  58
  59 static int preinit(sh_audio_t *sh_audio)
  60 {
  61     HRESULT ret;
  62     WAVEFORMATEX *in_fmt = sh_audio->wf;
  63     DWORD srcsize = 0;
  64     acm_context_t *priv;
  65
  66     priv = malloc(sizeof(acm_context_t));
  67     if (!priv)
  68         return 0;
  69     sh_audio->context = priv;
  70
  71     mp_msg(MSGT_WIN32, MSGL_V, "======= Win32 (ACM) AUDIO Codec init =======\n");
  72
  73 //    priv->handle = NULL;
  74
  75     priv->o_wf = malloc(sizeof(WAVEFORMATEX));
  76     if (!priv->o_wf)
  77     {
  78         mp_tmsg(MSGT_DECAUDIO,MSGL_ERR,"Could not load/initialize Win32/ACM audio codec (missing DLL file?).\n");
  79         return 0;
  80     }
  81
  82     priv->o_wf->nChannels = in_fmt->nChannels;
  83     priv->o_wf->nSamplesPerSec = in_fmt->nSamplesPerSec;
  84     priv->o_wf->nAvgBytesPerSec = 2*in_fmt->nSamplesPerSec*in_fmt->nChannels;
  85     priv->o_wf->wFormatTag = WAVE_FORMAT_PCM;
  86     priv->o_wf->nBlockAlign = 2*in_fmt->nChannels;
  87     priv->o_wf->wBitsPerSample = 16;
  88 //    priv->o_wf->wBitsPerSample = inf_fmt->wBitsPerSample;
  89     priv->o_wf->cbSize = 0;
  90
  91     if ( mp_msg_test(MSGT_DECAUDIO,MSGL_V) )
  92     {
  93         mp_msg(MSGT_DECAUDIO, MSGL_V, "Input format:\n");
  94         print_wave_header(in_fmt, MSGL_V);
  95         mp_msg(MSGT_DECAUDIO, MSGL_V, "Output format:\n");
  96         print_wave_header(priv->o_wf, MSGL_V);
  97     }
  98
  99     MSACM_RegisterDriver((const char *)sh_audio->codec->dll, in_fmt->wFormatTag, 0);
 100     ret = acmStreamOpen(&priv->handle, (HACMDRIVER)NULL, in_fmt,
 101                         priv->o_wf, NULL, 0, 0, 0);
 102     if (ret)
 103     {
 104         if (ret == ACMERR_NOTPOSSIBLE)
 105             mp_msg(MSGT_WIN32, MSGL_ERR, "ACM_Decoder: Unappropriate audio format\n");
 106         else
 107             mp_msg(MSGT_WIN32, MSGL_ERR, "ACM_Decoder: acmStreamOpen error: %d\n",
 108                 (int)ret);
 109         mp_tmsg(MSGT_DECAUDIO,MSGL_ERR,"Could not load/initialize Win32/ACM audio codec (missing DLL file?).\n");
 110         return 0;
 111     }
 112     mp_msg(MSGT_WIN32, MSGL_V, "Audio codec opened OK! ;-)\n");
 113
 114     acmStreamSize(priv->handle, in_fmt->nBlockAlign, &srcsize, ACM_STREAMSIZEF_SOURCE);
 115     //if ( mp_msg_test(MSGT_DECAUDIO,MSGL_V) ) printf("Audio ACM output buffer min. size: %ld (reported by codec)\n", srcsize);
 116     srcsize *= 2;
 117     //if (srcsize < MAX_OUTBURST) srcsize = MAX_OUTBURST;
 118     if (!srcsize)
 119     {
 120         mp_msg(MSGT_WIN32, MSGL_WARN, "Warning! ACM codec reports srcsize=0\n");
 121         srcsize = 16384;
 122     }
 123     // limit srcsize to 4-16kb
 124     //while(srcsize && srcsize<4096) srcsize*=2;
 125     //while(srcsize>16384) srcsize/=2;
 126     sh_audio->audio_out_minsize=srcsize; // audio output min. size
 127     mp_msg(MSGT_WIN32,MSGL_V,"Audio ACM output buffer min. size: %ld\n",srcsize);
 128
 129     acmStreamSize(priv->handle, srcsize, &srcsize, ACM_STREAMSIZEF_DESTINATION);
 130 //    if(srcsize<in_fmt->nBlockAlign) srcsize=in_fmt->nBlockAlign;
 131
 132     if (!srcsize)
 133     {
 134         mp_msg(MSGT_WIN32, MSGL_WARN, "Warning! ACM codec reports srcsize=0\n");
 135         srcsize = 2*in_fmt->nBlockAlign;
 136     }
 137
 138     mp_msg(MSGT_WIN32,MSGL_V,"Audio ACM input buffer min. size: %ld\n",srcsize);
 139
 140     sh_audio->audio_in_minsize=2*srcsize; // audio input min. size
 141
 142     sh_audio->i_bps=sh_audio->wf->nAvgBytesPerSec;
 143     sh_audio->channels=priv->o_wf->nChannels;
 144     sh_audio->samplerate=priv->o_wf->nSamplesPerSec;
 145     sh_audio->samplesize=2;
 146
 147     mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: Win32/ACM audio codec init OK!\n");
 148     return 1;
 149 }
 150
 151 static void uninit(sh_audio_t *sh)
 152 {
 153     HRESULT ret;
 154     acm_context_t *priv = sh->context;
 155
 156 retry:
 157     ret = acmStreamClose(priv->handle, 0);
 158
 159     if (ret)
 160     switch(ret)
 161     {
 162         case ACMERR_BUSY:
 163         case ACMERR_CANCELED:
 164             mp_msg(MSGT_WIN32, MSGL_DBG2, "ACM_Decoder: stream busy, waiting..\n");
 165             usec_sleep(100000000);
 166             goto retry;
 167         case ACMERR_UNPREPARED:
 168         case ACMERR_NOTPOSSIBLE:
 169             return;
 170         default:
 171             mp_msg(MSGT_WIN32, MSGL_WARN, "ACM_Decoder: unknown error occurred: %ld\n", ret);
 172             return;
 173     }
 174
 175     MSACM_UnregisterAllDrivers();
 176
 177     free(priv->o_wf);
 178     free(priv);
 179 }
 180
 181 static int control(sh_audio_t *sh_audio,int cmd,void* arg, ...)
 182 {
 183   int skip;
 184     switch(cmd)
 185     {
 186       case ADCTRL_SKIP_FRAME:
 187                     skip=sh_audio->wf->nBlockAlign;
 188                     if(skip<16){
 189                       skip=(sh_audio->wf->nAvgBytesPerSec/16)&(~7);
 190                       if(skip<16) skip=16;
 191                     }
 192                     demux_read_data(sh_audio->ds,NULL,skip);
 193           return CONTROL_TRUE;
 194     }
 195   return CONTROL_UNKNOWN;
 196 }
 197
 198 static int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen)
 199 {
 200     ACMSTREAMHEADER ash;
 201     HRESULT hr;
 202     DWORD srcsize=0;
 203     DWORD len=minlen;
 204     acm_context_t *priv = sh_audio->context;
 205
 206     acmStreamSize(priv->handle, len, &srcsize, ACM_STREAMSIZEF_DESTINATION);
 207     mp_msg(MSGT_WIN32,MSGL_DBG3,"acm says: srcsize=%ld  (buffsize=%d)  out_size=%ld\n",srcsize,sh_audio->a_in_buffer_size,len);
 208
 209     if(srcsize<sh_audio->wf->nBlockAlign){
 210        srcsize=sh_audio->wf->nBlockAlign;
 211        acmStreamSize(priv->handle, srcsize, &len, ACM_STREAMSIZEF_SOURCE);
 212        if(len>maxlen) len=maxlen;
 213     }
 214
 215 //    if(srcsize==0) srcsize=((WAVEFORMATEX *)&sh_audio->o_wf_ext)->nBlockAlign;
 216     if(srcsize>sh_audio->a_in_buffer_size) srcsize=sh_audio->a_in_buffer_size; // !!!!!!
 217     if(sh_audio->a_in_buffer_len<srcsize){
 218       sh_audio->a_in_buffer_len+=
 219         demux_read_data(sh_audio->ds,&sh_audio->a_in_buffer[sh_audio->a_in_buffer_len],
 220         srcsize-sh_audio->a_in_buffer_len);
 221     }
 222     mp_msg(MSGT_WIN32,MSGL_DBG3,"acm convert %d -> %ld bytes\n",sh_audio->a_in_buffer_len,len);
 223     memset(&ash, 0, sizeof(ash));
 224     ash.cbStruct=sizeof(ash);
 225     ash.fdwStatus=0;
 226     ash.dwUser=0;
 227     ash.pbSrc=sh_audio->a_in_buffer;
 228     ash.cbSrcLength=sh_audio->a_in_buffer_len;
 229     ash.pbDst=buf;
 230     ash.cbDstLength=len;
 231     hr=acmStreamPrepareHeader(priv->handle,&ash,0);
 232     if(hr){
 233       mp_msg(MSGT_WIN32,MSGL_V,"ACM_Decoder: acmStreamPrepareHeader error %d\n",(int)hr);
 234       return -1;
 235     }
 236     hr=acmStreamConvert(priv->handle,&ash,0);
 237     if(hr){
 238       mp_msg(MSGT_WIN32,MSGL_DBG2,"ACM_Decoder: acmStreamConvert error %d\n",(int)hr);
 239       switch(hr)
 240       {
 241         case ACMERR_NOTPOSSIBLE:
 242         case ACMERR_UNPREPARED:
 243             mp_msg(MSGT_WIN32, MSGL_DBG2, "ACM_Decoder: acmStreamConvert error: probarly not initialized!\n");
 244       }
 245 //      return -1;
 246     }
 247     mp_msg(MSGT_WIN32,MSGL_DBG2,"acm converted %ld -> %ld\n",ash.cbSrcLengthUsed,ash.cbDstLengthUsed);
 248     if(ash.cbSrcLengthUsed>=sh_audio->a_in_buffer_len){
 249       sh_audio->a_in_buffer_len=0;
 250     } else {
 251       sh_audio->a_in_buffer_len-=ash.cbSrcLengthUsed;
 252       memcpy(sh_audio->a_in_buffer,&sh_audio->a_in_buffer[ash.cbSrcLengthUsed],sh_audio->a_in_buffer_len);
 253     }
 254     len=ash.cbDstLengthUsed;
 255     hr=acmStreamUnprepareHeader(priv->handle,&ash,0);
 256     if(hr){
 257       mp_msg(MSGT_WIN32,MSGL_V,"ACM_Decoder: acmStreamUnprepareHeader error %d\n",(int)hr);
 258     }
 259     return len;
 260 }