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Patch by Zhi-Qiang Lei. See also http://sourceforge.net/p/cmusphinx/bugs/389/ git-svn-id: svn+ssh://svn.code.sf.net/p/cmusphinx/code/trunk/sphinxbase@12610 94700074-3cef-4d97-a70e-9c8c206c02f5
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nshmyrev
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Sep 23, 2014
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| #include <config.h> | ||
| #include <stdlib.h> | ||
| #include <stdio.h> | ||
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| #include "ad.h" | ||
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| ad_rec_t * | ||
| ad_open_dev(const char * dev, int32 samples_per_sec) | ||
| { | ||
| ad_rec_t * handle = malloc(sizeof(ad_rec_t)); | ||
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| if (handle == NULL) { | ||
| fprintf(stderr, "%s\n", "failed to allocate memory"); | ||
| abort(); | ||
| } | ||
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| handle -> device = alcCaptureOpenDevice(dev, samples_per_sec, AL_FORMAT_MONO16, samples_per_sec * 10); | ||
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| if (handle -> device == NULL) { | ||
| free(handle); | ||
| fprintf(stderr, "%s\n", "failed to open capture device"); | ||
| abort(); | ||
| } | ||
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| return handle; | ||
| } | ||
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| ad_rec_t * | ||
| ad_open_sps(int32 samples_per_sec) | ||
| { | ||
| return ad_open_dev(NULL, samples_per_sec); | ||
| } | ||
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| ad_rec_t * | ||
| ad_open(void) | ||
| { | ||
| return ad_open_sps(DEFAULT_SAMPLES_PER_SEC); | ||
| } | ||
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| int32 | ||
| ad_start_rec(ad_rec_t * r) | ||
| { | ||
| alcCaptureStart(r -> device); | ||
| return 0; | ||
| } | ||
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| int32 | ||
| ad_stop_rec(ad_rec_t * r) | ||
| { | ||
| alcCaptureStop(r -> device); | ||
| return 0; | ||
| } | ||
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| int32 | ||
| ad_read(ad_rec_t * r, int16 * buf, int32 max) | ||
| { | ||
| ALCint number; | ||
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| alcGetIntegerv(r -> device, ALC_CAPTURE_SAMPLES, sizeof(number), &number); | ||
| if (number >= 0) { | ||
| number = (number < max ? number : max); | ||
| alcCaptureSamples(r -> device, buf, number); | ||
| } | ||
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| return number; | ||
| } | ||
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| int32 | ||
| ad_close(ad_rec_t * r) | ||
| { | ||
| ALCboolean isClosed; | ||
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| isClosed = alcCaptureCloseDevice(r -> device); | ||
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| if (isClosed) { | ||
| return 0; | ||
| } else { | ||
| return -1; | ||
| } | ||
| } |
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