root / audio / wavcapture.c @ 34b5d2c6
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1 | 87ecb68b | pbrook | #include "hw/hw.h" |
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2 | 83c9089e | Paolo Bonzini | #include "monitor/monitor.h" |
3 | 87ecb68b | pbrook | #include "audio.h" |
4 | 8ead62cf | bellard | |
5 | 8ead62cf | bellard | typedef struct { |
6 | b04df2a4 | Juan Quintela | FILE *f; |
7 | 8ead62cf | bellard | int bytes;
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8 | ec36b695 | bellard | char *path;
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9 | ec36b695 | bellard | int freq;
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10 | ec36b695 | bellard | int bits;
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11 | ec36b695 | bellard | int nchannels;
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12 | ec36b695 | bellard | CaptureVoiceOut *cap; |
13 | 8ead62cf | bellard | } WAVState; |
14 | 8ead62cf | bellard | |
15 | 8ead62cf | bellard | /* VICE code: Store number as little endian. */
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16 | 8ead62cf | bellard | static void le_store (uint8_t *buf, uint32_t val, int len) |
17 | 8ead62cf | bellard | { |
18 | 8ead62cf | bellard | int i;
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19 | 8ead62cf | bellard | for (i = 0; i < len; i++) { |
20 | 8ead62cf | bellard | buf[i] = (uint8_t) (val & 0xff);
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21 | 8ead62cf | bellard | val >>= 8;
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22 | 8ead62cf | bellard | } |
23 | 8ead62cf | bellard | } |
24 | 8ead62cf | bellard | |
25 | ec36b695 | bellard | static void wav_notify (void *opaque, audcnotification_e cmd) |
26 | 8ead62cf | bellard | { |
27 | ec36b695 | bellard | (void) opaque;
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28 | ec36b695 | bellard | (void) cmd;
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29 | ec36b695 | bellard | } |
30 | 8ead62cf | bellard | |
31 | ec36b695 | bellard | static void wav_destroy (void *opaque) |
32 | ec36b695 | bellard | { |
33 | ec36b695 | bellard | WAVState *wav = opaque; |
34 | ec36b695 | bellard | uint8_t rlen[4];
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35 | ec36b695 | bellard | uint8_t dlen[4];
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36 | ec36b695 | bellard | uint32_t datalen = wav->bytes; |
37 | ec36b695 | bellard | uint32_t rifflen = datalen + 36;
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38 | b04df2a4 | Juan Quintela | Monitor *mon = cur_mon; |
39 | 8ead62cf | bellard | |
40 | e84a4fed | bellard | if (wav->f) {
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41 | e84a4fed | bellard | le_store (rlen, rifflen, 4);
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42 | e84a4fed | bellard | le_store (dlen, datalen, 4);
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43 | f941aa25 | ths | |
44 | b04df2a4 | Juan Quintela | if (fseek (wav->f, 4, SEEK_SET)) { |
45 | b04df2a4 | Juan Quintela | monitor_printf (mon, "wav_destroy: rlen fseek failed\nReason: %s\n",
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46 | b04df2a4 | Juan Quintela | strerror (errno)); |
47 | b04df2a4 | Juan Quintela | goto doclose;
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48 | b04df2a4 | Juan Quintela | } |
49 | b04df2a4 | Juan Quintela | if (fwrite (rlen, 4, 1, wav->f) != 1) { |
50 | b04df2a4 | Juan Quintela | monitor_printf (mon, "wav_destroy: rlen fwrite failed\nReason %s\n",
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51 | b04df2a4 | Juan Quintela | strerror (errno)); |
52 | b04df2a4 | Juan Quintela | goto doclose;
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53 | b04df2a4 | Juan Quintela | } |
54 | b04df2a4 | Juan Quintela | if (fseek (wav->f, 32, SEEK_CUR)) { |
55 | b04df2a4 | Juan Quintela | monitor_printf (mon, "wav_destroy: dlen fseek failed\nReason %s\n",
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56 | b04df2a4 | Juan Quintela | strerror (errno)); |
57 | b04df2a4 | Juan Quintela | goto doclose;
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58 | b04df2a4 | Juan Quintela | } |
59 | b04df2a4 | Juan Quintela | if (fwrite (dlen, 1, 4, wav->f) != 4) { |
60 | b04df2a4 | Juan Quintela | monitor_printf (mon, "wav_destroy: dlen fwrite failed\nReason %s\n",
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61 | b04df2a4 | Juan Quintela | strerror (errno)); |
62 | b04df2a4 | Juan Quintela | goto doclose;
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63 | b04df2a4 | Juan Quintela | } |
64 | b04df2a4 | Juan Quintela | doclose:
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65 | b04df2a4 | Juan Quintela | if (fclose (wav->f)) {
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66 | b04df2a4 | Juan Quintela | fprintf (stderr, "wav_destroy: fclose failed: %s",
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67 | b04df2a4 | Juan Quintela | strerror (errno)); |
68 | b04df2a4 | Juan Quintela | } |
69 | 8ead62cf | bellard | } |
70 | f941aa25 | ths | |
71 | 7267c094 | Anthony Liguori | g_free (wav->path); |
72 | 8ead62cf | bellard | } |
73 | 8ead62cf | bellard | |
74 | ec36b695 | bellard | static void wav_capture (void *opaque, void *buf, int size) |
75 | 8ead62cf | bellard | { |
76 | 8ead62cf | bellard | WAVState *wav = opaque; |
77 | 8ead62cf | bellard | |
78 | b04df2a4 | Juan Quintela | if (fwrite (buf, size, 1, wav->f) != 1) { |
79 | b04df2a4 | Juan Quintela | monitor_printf (cur_mon, "wav_capture: fwrite error\nReason: %s",
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80 | b04df2a4 | Juan Quintela | strerror (errno)); |
81 | b04df2a4 | Juan Quintela | } |
82 | 8ead62cf | bellard | wav->bytes += size; |
83 | 8ead62cf | bellard | } |
84 | 8ead62cf | bellard | |
85 | ec36b695 | bellard | static void wav_capture_destroy (void *opaque) |
86 | ec36b695 | bellard | { |
87 | ec36b695 | bellard | WAVState *wav = opaque; |
88 | ec36b695 | bellard | |
89 | ec36b695 | bellard | AUD_del_capture (wav->cap, wav); |
90 | ec36b695 | bellard | } |
91 | ec36b695 | bellard | |
92 | ec36b695 | bellard | static void wav_capture_info (void *opaque) |
93 | ec36b695 | bellard | { |
94 | ec36b695 | bellard | WAVState *wav = opaque; |
95 | ec36b695 | bellard | char *path = wav->path;
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96 | ec36b695 | bellard | |
97 | b04df2a4 | Juan Quintela | monitor_printf (cur_mon, "Capturing audio(%d,%d,%d) to %s: %d bytes\n",
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98 | b04df2a4 | Juan Quintela | wav->freq, wav->bits, wav->nchannels, |
99 | b04df2a4 | Juan Quintela | path ? path : "<not available>", wav->bytes);
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100 | ec36b695 | bellard | } |
101 | ec36b695 | bellard | |
102 | ec36b695 | bellard | static struct capture_ops wav_capture_ops = { |
103 | ec36b695 | bellard | .destroy = wav_capture_destroy, |
104 | ec36b695 | bellard | .info = wav_capture_info |
105 | ec36b695 | bellard | }; |
106 | ec36b695 | bellard | |
107 | ec36b695 | bellard | int wav_start_capture (CaptureState *s, const char *path, int freq, |
108 | ec36b695 | bellard | int bits, int nchannels) |
109 | 8ead62cf | bellard | { |
110 | 376253ec | aliguori | Monitor *mon = cur_mon; |
111 | 8ead62cf | bellard | WAVState *wav; |
112 | 8ead62cf | bellard | uint8_t hdr[] = { |
113 | 8ead62cf | bellard | 0x52, 0x49, 0x46, 0x46, 0x00, 0x00, 0x00, 0x00, 0x57, 0x41, 0x56, |
114 | 8ead62cf | bellard | 0x45, 0x66, 0x6d, 0x74, 0x20, 0x10, 0x00, 0x00, 0x00, 0x01, 0x00, |
115 | 8ead62cf | bellard | 0x02, 0x00, 0x44, 0xac, 0x00, 0x00, 0x10, 0xb1, 0x02, 0x00, 0x04, |
116 | 8ead62cf | bellard | 0x00, 0x10, 0x00, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00 |
117 | 8ead62cf | bellard | }; |
118 | 1ea879e5 | malc | struct audsettings as;
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119 | 8ead62cf | bellard | struct audio_capture_ops ops;
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120 | ec36b695 | bellard | int stereo, bits16, shift;
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121 | ec36b695 | bellard | CaptureVoiceOut *cap; |
122 | ec36b695 | bellard | |
123 | ec36b695 | bellard | if (bits != 8 && bits != 16) { |
124 | b04df2a4 | Juan Quintela | monitor_printf (mon, "incorrect bit count %d, must be 8 or 16\n", bits);
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125 | ec36b695 | bellard | return -1; |
126 | ec36b695 | bellard | } |
127 | ec36b695 | bellard | |
128 | ec36b695 | bellard | if (nchannels != 1 && nchannels != 2) { |
129 | b04df2a4 | Juan Quintela | monitor_printf (mon, "incorrect channel count %d, must be 1 or 2\n",
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130 | b04df2a4 | Juan Quintela | nchannels); |
131 | ec36b695 | bellard | return -1; |
132 | ec36b695 | bellard | } |
133 | 8ead62cf | bellard | |
134 | ec36b695 | bellard | stereo = nchannels == 2;
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135 | ec36b695 | bellard | bits16 = bits == 16;
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136 | 8ead62cf | bellard | |
137 | 8ead62cf | bellard | as.freq = freq; |
138 | 8ead62cf | bellard | as.nchannels = 1 << stereo;
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139 | 8ead62cf | bellard | as.fmt = bits16 ? AUD_FMT_S16 : AUD_FMT_U8; |
140 | d929eba5 | bellard | as.endianness = 0;
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141 | 8ead62cf | bellard | |
142 | ec36b695 | bellard | ops.notify = wav_notify; |
143 | ec36b695 | bellard | ops.capture = wav_capture; |
144 | ec36b695 | bellard | ops.destroy = wav_destroy; |
145 | 8ead62cf | bellard | |
146 | 7267c094 | Anthony Liguori | wav = g_malloc0 (sizeof (*wav));
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147 | 8ead62cf | bellard | |
148 | 8ead62cf | bellard | shift = bits16 + stereo; |
149 | 8ead62cf | bellard | hdr[34] = bits16 ? 0x10 : 0x08; |
150 | 8ead62cf | bellard | |
151 | 8ead62cf | bellard | le_store (hdr + 22, as.nchannels, 2); |
152 | 8ead62cf | bellard | le_store (hdr + 24, freq, 4); |
153 | 8ead62cf | bellard | le_store (hdr + 28, freq << shift, 4); |
154 | 8ead62cf | bellard | le_store (hdr + 32, 1 << shift, 2); |
155 | 8ead62cf | bellard | |
156 | b04df2a4 | Juan Quintela | wav->f = fopen (path, "wb");
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157 | 8ead62cf | bellard | if (!wav->f) {
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158 | b04df2a4 | Juan Quintela | monitor_printf (mon, "Failed to open wave file `%s'\nReason: %s\n",
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159 | b04df2a4 | Juan Quintela | path, strerror (errno)); |
160 | 7267c094 | Anthony Liguori | g_free (wav); |
161 | ec36b695 | bellard | return -1; |
162 | 8ead62cf | bellard | } |
163 | 8ead62cf | bellard | |
164 | 7267c094 | Anthony Liguori | wav->path = g_strdup (path); |
165 | ec36b695 | bellard | wav->bits = bits; |
166 | ec36b695 | bellard | wav->nchannels = nchannels; |
167 | ec36b695 | bellard | wav->freq = freq; |
168 | ec36b695 | bellard | |
169 | b04df2a4 | Juan Quintela | if (fwrite (hdr, sizeof (hdr), 1, wav->f) != 1) { |
170 | b04df2a4 | Juan Quintela | monitor_printf (mon, "Failed to write header\nReason: %s\n",
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171 | b04df2a4 | Juan Quintela | strerror (errno)); |
172 | b04df2a4 | Juan Quintela | goto error_free;
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173 | b04df2a4 | Juan Quintela | } |
174 | ec36b695 | bellard | |
175 | 1a7dafce | malc | cap = AUD_add_capture (&as, &ops, wav); |
176 | ec36b695 | bellard | if (!cap) {
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177 | b04df2a4 | Juan Quintela | monitor_printf (mon, "Failed to add audio capture\n");
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178 | b04df2a4 | Juan Quintela | goto error_free;
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179 | ec36b695 | bellard | } |
180 | ec36b695 | bellard | |
181 | ec36b695 | bellard | wav->cap = cap; |
182 | ec36b695 | bellard | s->opaque = wav; |
183 | ec36b695 | bellard | s->ops = wav_capture_ops; |
184 | ec36b695 | bellard | return 0; |
185 | b04df2a4 | Juan Quintela | |
186 | b04df2a4 | Juan Quintela | error_free:
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187 | b04df2a4 | Juan Quintela | g_free (wav->path); |
188 | b04df2a4 | Juan Quintela | if (fclose (wav->f)) {
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189 | b04df2a4 | Juan Quintela | monitor_printf (mon, "Failed to close wave file\nReason: %s\n",
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190 | b04df2a4 | Juan Quintela | strerror (errno)); |
191 | b04df2a4 | Juan Quintela | } |
192 | b04df2a4 | Juan Quintela | g_free (wav); |
193 | b04df2a4 | Juan Quintela | return -1; |
194 | 8ead62cf | bellard | } |