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