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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#ifdef USE_WIN32DLL
#include "wineacm.h"
#include "ad_internal.h"
static ad_info_t info =
{
"Win32/ACM decoders",
"acm",
"A'rpi",
"A'rpi & Alex",
""
};
LIBAD_EXTERN(acm)
typedef struct {
WAVEFORMATEX *o_wf;
HACMSTREAM handle;
} acm_context_t;
static int init(sh_audio_t *sh_audio)
{
int ret=decode_audio(sh_audio,sh_audio->a_buffer,4096,sh_audio->a_buffer_size);
if(ret<0){
mp_msg(MSGT_DECAUDIO,MSGL_INFO,"ACM decoding error: %d\n",ret);
return 0;
}
sh_audio->a_buffer_len=ret;
return 1;
}
extern void print_wave_header(WAVEFORMATEX *h);
static int preinit(sh_audio_t *sh_audio)
{
HRESULT ret;
WAVEFORMATEX *in_fmt = sh_audio->wf;
DWORD srcsize = 0;
acm_context_t *priv;
priv = malloc(sizeof(acm_context_t));
if (!priv)
return 0;
sh_audio->context = priv;
mp_msg(MSGT_WIN32, MSGL_V, "======= Win32 (ACM) AUDIO Codec init =======\n");
// priv->handle = NULL;
priv->o_wf = malloc(sizeof(WAVEFORMATEX));
if (!priv->o_wf)
{
mp_msg(MSGT_DECAUDIO,MSGL_ERR,MSGTR_ACMiniterror);
return 0;
}
priv->o_wf->nChannels = in_fmt->nChannels;
priv->o_wf->nSamplesPerSec = in_fmt->nSamplesPerSec;
priv->o_wf->nAvgBytesPerSec = 2*in_fmt->nSamplesPerSec*in_fmt->nChannels;
priv->o_wf->wFormatTag = WAVE_FORMAT_PCM;
priv->o_wf->nBlockAlign = 2*in_fmt->nChannels;
priv->o_wf->wBitsPerSample = 16;
// priv->o_wf->wBitsPerSample = inf_fmt->wBitsPerSample;
priv->o_wf->cbSize = 0;
if (verbose>0)
{
mp_msg(MSGT_DECAUDIO, MSGL_V, "Input format:\n");
print_wave_header(in_fmt);
mp_msg(MSGT_DECAUDIO, MSGL_V, "Output format:\n");
print_wave_header(priv->o_wf);
}
MSACM_RegisterDriver((const char *)sh_audio->codec->dll, in_fmt->wFormatTag, 0);
ret = acmStreamOpen(&priv->handle, (HACMDRIVER)NULL, in_fmt,
priv->o_wf, NULL, 0, 0, 0);
if (ret)
{
if (ret == ACMERR_NOTPOSSIBLE)
mp_msg(MSGT_WIN32, MSGL_ERR, "ACM_Decoder: Unappropriate audio format\n");
else
mp_msg(MSGT_WIN32, MSGL_ERR, "ACM_Decoder: acmStreamOpen error: %d\n",
(int)ret);
mp_msg(MSGT_DECAUDIO,MSGL_ERR,MSGTR_ACMiniterror);
return 0;
}
mp_msg(MSGT_WIN32, MSGL_V, "Audio codec opened OK! ;-)\n");
acmStreamSize(priv->handle, in_fmt->nBlockAlign, &srcsize, ACM_STREAMSIZEF_SOURCE);
//if (verbose) printf("Audio ACM output buffer min. size: %ld (reported by codec)\n", srcsize);
srcsize *= 2;
//if (srcsize < MAX_OUTBURST) srcsize = MAX_OUTBURST;
if (!srcsize)
{
mp_msg(MSGT_WIN32, MSGL_WARN, "Warning! ACM codec reports srcsize=0\n");
srcsize = 16384;
}
// limit srcsize to 4-16kb
//while(srcsize && srcsize<4096) srcsize*=2;
//while(srcsize>16384) srcsize/=2;
sh_audio->audio_out_minsize=srcsize; // audio output min. size
mp_msg(MSGT_WIN32,MSGL_V,"Audio ACM output buffer min. size: %ld\n",srcsize);
acmStreamSize(priv->handle, srcsize, &srcsize, ACM_STREAMSIZEF_DESTINATION);
// if(srcsize<in_fmt->nBlockAlign) srcsize=in_fmt->nBlockAlign;
if (!srcsize)
{
mp_msg(MSGT_WIN32, MSGL_WARN, "Warning! ACM codec reports srcsize=0\n");
srcsize = 2*in_fmt->nBlockAlign;
}
mp_msg(MSGT_WIN32,MSGL_V,"Audio ACM input buffer min. size: %ld\n",srcsize);
sh_audio->audio_in_minsize=2*srcsize; // audio input min. size
sh_audio->i_bps=sh_audio->wf->nAvgBytesPerSec;
sh_audio->channels=priv->o_wf->nChannels;
sh_audio->samplerate=priv->o_wf->nSamplesPerSec;
sh_audio->samplesize=2;
mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: Win32/ACM audio codec init OK!\n");
return 1;
}
static void uninit(sh_audio_t *sh)
{
HRESULT ret;
acm_context_t *priv = sh->context;
ret = acmStreamClose(priv->handle, 0);
if (ret)
switch(ret)
{
case ACMERR_BUSY:
case ACMERR_CANCELED:
mp_msg(MSGT_WIN32, MSGL_DBG2, "ACM_Decoder: stream busy, waiting..\n");
sleep(100);
return(uninit(sh));
case ACMERR_UNPREPARED:
case ACMERR_NOTPOSSIBLE:
return;
default:
mp_msg(MSGT_WIN32, MSGL_WARN, "ACM_Decoder: unknown error occurred: %d\n", ret);
return;
}
MSACM_UnregisterAllDrivers();
free(priv->o_wf);
free(priv);
}
static int control(sh_audio_t *sh_audio,int cmd,void* arg, ...)
{
int skip;
switch(cmd)
{
case ADCTRL_SKIP_FRAME:
skip=sh_audio->wf->nBlockAlign;
if(skip<16){
skip=(sh_audio->wf->nAvgBytesPerSec/16)&(~7);
if(skip<16) skip=16;
}
demux_read_data(sh_audio->ds,NULL,skip);
return CONTROL_TRUE;
}
return CONTROL_UNKNOWN;
}
static int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen)
{
ACMSTREAMHEADER ash;
HRESULT hr;
DWORD srcsize=0;
DWORD len=minlen;
acm_context_t *priv = sh_audio->context;
acmStreamSize(priv->handle, len, &srcsize, ACM_STREAMSIZEF_DESTINATION);
mp_msg(MSGT_WIN32,MSGL_DBG3,"acm says: srcsize=%ld (buffsize=%d) out_size=%d\n",srcsize,sh_audio->a_in_buffer_size,len);
if(srcsize<sh_audio->wf->nBlockAlign){
srcsize=sh_audio->wf->nBlockAlign;
acmStreamSize(priv->handle, srcsize, &len, ACM_STREAMSIZEF_SOURCE);
if(len>maxlen) len=maxlen;
}
// if(srcsize==0) srcsize=((WAVEFORMATEX *)&sh_audio->o_wf_ext)->nBlockAlign;
if(srcsize>sh_audio->a_in_buffer_size) srcsize=sh_audio->a_in_buffer_size; // !!!!!!
if(sh_audio->a_in_buffer_len<srcsize){
sh_audio->a_in_buffer_len+=
demux_read_data(sh_audio->ds,&sh_audio->a_in_buffer[sh_audio->a_in_buffer_len],
srcsize-sh_audio->a_in_buffer_len);
}
mp_msg(MSGT_WIN32,MSGL_DBG3,"acm convert %d -> %d bytes\n",sh_audio->a_in_buffer_len,len);
memset(&ash, 0, sizeof(ash));
ash.cbStruct=sizeof(ash);
ash.fdwStatus=0;
ash.dwUser=0;
ash.pbSrc=sh_audio->a_in_buffer;
ash.cbSrcLength=sh_audio->a_in_buffer_len;
ash.pbDst=buf;
ash.cbDstLength=len;
hr=acmStreamPrepareHeader(priv->handle,&ash,0);
if(hr){
mp_msg(MSGT_WIN32,MSGL_V,"ACM_Decoder: acmStreamPrepareHeader error %d\n",(int)hr);
return -1;
}
hr=acmStreamConvert(priv->handle,&ash,0);
if(hr){
mp_msg(MSGT_WIN32,MSGL_DBG2,"ACM_Decoder: acmStreamConvert error %d\n",(int)hr);
switch(hr)
{
case ACMERR_NOTPOSSIBLE:
case ACMERR_UNPREPARED:
mp_msg(MSGT_WIN32, MSGL_DBG2, "ACM_Decoder: acmStreamConvert error: probarly not initialized!\n");
}
// return -1;
}
mp_msg(MSGT_WIN32,MSGL_DBG2,"acm converted %d -> %d\n",ash.cbSrcLengthUsed,ash.cbDstLengthUsed);
if(ash.cbSrcLengthUsed>=sh_audio->a_in_buffer_len){
sh_audio->a_in_buffer_len=0;
} else {
sh_audio->a_in_buffer_len-=ash.cbSrcLengthUsed;
memcpy(sh_audio->a_in_buffer,&sh_audio->a_in_buffer[ash.cbSrcLengthUsed],sh_audio->a_in_buffer_len);
}
len=ash.cbDstLengthUsed;
hr=acmStreamUnprepareHeader(priv->handle,&ash,0);
if(hr){
mp_msg(MSGT_WIN32,MSGL_V,"ACM_Decoder: acmStreamUnprepareHeader error %d\n",(int)hr);
}
return len;
}
#endif
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