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 "libmpdemux/aviprint.h"
  26 #include "loader/wineacm.h"
  27
  28 #include "ad_internal.h"
  29 #include "osdep/timer.h"
  30
  31 static const ad_info_t info =
  32 {
  33         "Win32/ACM decoders",
  34         "acm",
  35         "A'rpi",
  36         "A'rpi & Alex",
  37         ""
  38 };
  39
  40 LIBAD_EXTERN(acm)
  41
  42 typedef struct {
  43     WAVEFORMATEX *o_wf;
  44     HACMSTREAM handle;
  45 } acm_context_t;
  46
  47 static int init(sh_audio_t *sh_audio)
  48 {
  49     int ret=decode_audio(sh_audio,sh_audio->a_buffer,4096,sh_audio->a_buffer_size);
  50     if(ret<0){
  51         mp_msg(MSGT_DECAUDIO,MSGL_INFO,"ACM decoding error: %d\n",ret);
  52         return 0;
  53     }
  54     sh_audio->a_buffer_len=ret;
  55   return 1;
  56 }
  57
  58 static int preinit(sh_audio_t *sh_audio)
  59 {
  60     HRESULT ret;
  61     WAVEFORMATEX *in_fmt = sh_audio->wf;
  62     DWORD srcsize = 0;
  63     acm_context_t *priv;
  64
  65     priv = malloc(sizeof(acm_context_t));
  66     if (!priv)
  67         return 0;
  68     sh_audio->context = priv;
  69
  70     mp_msg(MSGT_WIN32, MSGL_V, "======= Win32 (ACM) AUDIO Codec init =======\n");
  71
  72 //    priv->handle = NULL;
  73
  74     priv->o_wf = malloc(sizeof(*priv->o_wf));
  75     if (!priv->o_wf)
  76     {
  77         mp_tmsg(MSGT_DECAUDIO,MSGL_ERR,"Could not load/initialize Win32/ACM audio codec (missing DLL file?).\n");
  78         return 0;
  79     }
  80
  81     priv->o_wf->nChannels = in_fmt->nChannels;
  82     priv->o_wf->nSamplesPerSec = in_fmt->nSamplesPerSec;
  83     priv->o_wf->nAvgBytesPerSec = 2*in_fmt->nSamplesPerSec*in_fmt->nChannels;
  84     priv->o_wf->wFormatTag = WAVE_FORMAT_PCM;
  85     priv->o_wf->nBlockAlign = 2*in_fmt->nChannels;
  86     priv->o_wf->wBitsPerSample = 16;
  87 //    priv->o_wf->wBitsPerSample = inf_fmt->wBitsPerSample;
  88     priv->o_wf->cbSize = 0;
  89
  90     if ( mp_msg_test(MSGT_DECAUDIO,MSGL_V) )
  91     {
  92         mp_msg(MSGT_DECAUDIO, MSGL_V, "Input format:\n");
  93         print_wave_header(in_fmt, MSGL_V);
  94         mp_msg(MSGT_DECAUDIO, MSGL_V, "Output format:\n");
  95         print_wave_header(priv->o_wf, MSGL_V);
  96     }
  97
  98     MSACM_RegisterDriver((const char *)sh_audio->codec->dll, in_fmt->wFormatTag, 0);
  99     ret = acmStreamOpen(&priv->handle, (HACMDRIVER)NULL, in_fmt,
 100                         priv->o_wf, NULL, 0, 0, 0);
 101     if (ret)
 102     {
 103         if (ret == ACMERR_NOTPOSSIBLE)
 104             mp_msg(MSGT_WIN32, MSGL_ERR, "ACM_Decoder: Unappropriate audio format\n");
 105         else
 106             mp_msg(MSGT_WIN32, MSGL_ERR, "ACM_Decoder: acmStreamOpen error: %d\n",
 107                 (int)ret);
 108         mp_tmsg(MSGT_DECAUDIO,MSGL_ERR,"Could not load/initialize Win32/ACM audio codec (missing DLL file?).\n");
 109         return 0;
 110     }
 111     mp_msg(MSGT_WIN32, MSGL_V, "Audio codec opened OK! ;-)\n");
 112
 113     acmStreamSize(priv->handle, in_fmt->nBlockAlign, &srcsize, ACM_STREAMSIZEF_SOURCE);
 114     //if ( mp_msg_test(MSGT_DECAUDIO,MSGL_V) ) printf("Audio ACM output buffer min. size: %ld (reported by codec)\n", srcsize);
 115     srcsize *= 2;
 116     //if (srcsize < MAX_OUTBURST) srcsize = MAX_OUTBURST;
 117     if (!srcsize)
 118     {
 119         mp_msg(MSGT_WIN32, MSGL_WARN, "Warning! ACM codec reports srcsize=0\n");
 120         srcsize = 16384;
 121     }
 122     // limit srcsize to 4-16kb
 123     //while(srcsize && srcsize<4096) srcsize*=2;
 124     //while(srcsize>16384) srcsize/=2;
 125     sh_audio->audio_out_minsize=srcsize; // audio output min. size
 126     mp_msg(MSGT_WIN32,MSGL_V,"Audio ACM output buffer min. size: %ld\n",srcsize);
 127
 128     acmStreamSize(priv->handle, srcsize, &srcsize, ACM_STREAMSIZEF_DESTINATION);
 129 //    if(srcsize<in_fmt->nBlockAlign) srcsize=in_fmt->nBlockAlign;
 130
 131     if (!srcsize)
 132     {
 133         mp_msg(MSGT_WIN32, MSGL_WARN, "Warning! ACM codec reports srcsize=0\n");
 134         srcsize = 2*in_fmt->nBlockAlign;
 135     }
 136
 137     mp_msg(MSGT_WIN32,MSGL_V,"Audio ACM input buffer min. size: %ld\n",srcsize);
 138
 139     sh_audio->audio_in_minsize=2*srcsize; // audio input min. size
 140
 141     sh_audio->i_bps=sh_audio->wf->nAvgBytesPerSec;
 142     sh_audio->channels=priv->o_wf->nChannels;
 143     sh_audio->samplerate=priv->o_wf->nSamplesPerSec;
 144     sh_audio->samplesize=2;
 145
 146     mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: Win32/ACM audio codec init OK!\n");
 147     return 1;
 148 }
 149
 150 static void uninit(sh_audio_t *sh)
 151 {
 152     HRESULT ret;
 153     acm_context_t *priv = sh->context;
 154
 155 retry:
 156     ret = acmStreamClose(priv->handle, 0);
 157
 158     if (ret)
 159     switch(ret)
 160     {
 161         case ACMERR_BUSY:
 162         case ACMERR_CANCELED:
 163             mp_msg(MSGT_WIN32, MSGL_DBG2, "ACM_Decoder: stream busy, waiting..\n");
 164             usec_sleep(100000000);
 165             goto retry;
 166         case ACMERR_UNPREPARED:
 167         case ACMERR_NOTPOSSIBLE:
 168             return;
 169         default:
 170             mp_msg(MSGT_WIN32, MSGL_WARN, "ACM_Decoder: unknown error occurred: %ld\n", ret);
 171             return;
 172     }
 173
 174     MSACM_UnregisterAllDrivers();
 175
 176     free(priv->o_wf);
 177     free(priv);
 178 }
 179
 180 static int control(sh_audio_t *sh_audio,int cmd,void* arg, ...)
 181 {
 182   int skip;
 183     switch(cmd)
 184     {
 185       case ADCTRL_SKIP_FRAME:
 186                     skip=sh_audio->wf->nBlockAlign;
 187                     if(skip<16){
 188                       skip=(sh_audio->wf->nAvgBytesPerSec/16)&(~7);
 189                       if(skip<16) skip=16;
 190                     }
 191                     demux_read_data(sh_audio->ds,NULL,skip);
 192           return CONTROL_TRUE;
 193     }
 194   return CONTROL_UNKNOWN;
 195 }
 196
 197 static int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen)
 198 {
 199     ACMSTREAMHEADER ash;
 200     HRESULT hr;
 201     DWORD srcsize=0;
 202     DWORD len=minlen;
 203     acm_context_t *priv = sh_audio->context;
 204
 205     acmStreamSize(priv->handle, len, &srcsize, ACM_STREAMSIZEF_DESTINATION);
 206     mp_msg(MSGT_WIN32,MSGL_DBG3,"acm says: srcsize=%ld  (buffsize=%d)  out_size=%ld\n",srcsize,sh_audio->a_in_buffer_size,len);
 207
 208     if(srcsize<sh_audio->wf->nBlockAlign){
 209        srcsize=sh_audio->wf->nBlockAlign;
 210        acmStreamSize(priv->handle, srcsize, &len, ACM_STREAMSIZEF_SOURCE);
 211        if(len>maxlen) len=maxlen;
 212     }
 213
 214 //    if(srcsize==0) srcsize=((WAVEFORMATEX *)&sh_audio->o_wf_ext)->nBlockAlign;
 215     if(srcsize>sh_audio->a_in_buffer_size) srcsize=sh_audio->a_in_buffer_size; // !!!!!!
 216     if(sh_audio->a_in_buffer_len<srcsize){
 217       sh_audio->a_in_buffer_len+=
 218         demux_read_data(sh_audio->ds,&sh_audio->a_in_buffer[sh_audio->a_in_buffer_len],
 219         srcsize-sh_audio->a_in_buffer_len);
 220     }
 221     mp_msg(MSGT_WIN32,MSGL_DBG3,"acm convert %d -> %ld bytes\n",sh_audio->a_in_buffer_len,len);
 222     memset(&ash, 0, sizeof(ash));
 223     ash.cbStruct=sizeof(ash);
 224     ash.fdwStatus=0;
 225     ash.dwUser=0;
 226     ash.pbSrc=sh_audio->a_in_buffer;
 227     ash.cbSrcLength=sh_audio->a_in_buffer_len;
 228     ash.pbDst=buf;
 229     ash.cbDstLength=len;
 230     hr=acmStreamPrepareHeader(priv->handle,&ash,0);
 231     if(hr){
 232       mp_msg(MSGT_WIN32,MSGL_V,"ACM_Decoder: acmStreamPrepareHeader error %d\n",(int)hr);
 233       return -1;
 234     }
 235     hr=acmStreamConvert(priv->handle,&ash,0);
 236     if(hr){
 237       mp_msg(MSGT_WIN32,MSGL_DBG2,"ACM_Decoder: acmStreamConvert error %d\n",(int)hr);
 238       switch(hr)
 239       {
 240         case ACMERR_NOTPOSSIBLE:
 241         case ACMERR_UNPREPARED:
 242             mp_msg(MSGT_WIN32, MSGL_DBG2, "ACM_Decoder: acmStreamConvert error: probarly not initialized!\n");
 243       }
 244 //      return -1;
 245     }
 246     mp_msg(MSGT_WIN32,MSGL_DBG2,"acm converted %ld -> %ld\n",ash.cbSrcLengthUsed,ash.cbDstLengthUsed);
 247     if(ash.cbSrcLengthUsed>=sh_audio->a_in_buffer_len){
 248       sh_audio->a_in_buffer_len=0;
 249     } else {
 250       sh_audio->a_in_buffer_len-=ash.cbSrcLengthUsed;
 251       memcpy(sh_audio->a_in_buffer,&sh_audio->a_in_buffer[ash.cbSrcLengthUsed],sh_audio->a_in_buffer_len);
 252     }
 253     len=ash.cbDstLengthUsed;
 254     hr=acmStreamUnprepareHeader(priv->handle,&ash,0);
 255     if(hr){
 256       mp_msg(MSGT_WIN32,MSGL_V,"ACM_Decoder: acmStreamUnprepareHeader error %d\n",(int)hr);
 257     }
 258     return len;
 259 }