1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
|
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "loader/wineacm.h"
#include "ad_internal.h"
#include "osdep/timer.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;
}
void print_wave_header(WAVEFORMATEX *h, int verbose_level);
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 ( mp_msg_test(MSGT_DECAUDIO,MSGL_V) )
{
mp_msg(MSGT_DECAUDIO, MSGL_V, "Input format:\n");
print_wave_header(in_fmt, MSGL_V);
mp_msg(MSGT_DECAUDIO, MSGL_V, "Output format:\n");
print_wave_header(priv->o_wf, MSGL_V);
}
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 ( mp_msg_test(MSGT_DECAUDIO,MSGL_V) ) 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;
retry:
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");
usec_sleep(100000000);
goto retry;
case ACMERR_UNPREPARED:
case ACMERR_NOTPOSSIBLE:
return;
default:
mp_msg(MSGT_WIN32, MSGL_WARN, "ACM_Decoder: unknown error occurred: %ld\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=%ld\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 -> %ld 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 %ld -> %ld\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;
}
|
