#include <recog.h>
Data Fields | |
| boolean(* | ad_standby )(int, void *) |
| Pointer to function for device initialization (call once on startup). | |
| boolean(* | ad_begin )() |
| Pointer to function to open audio stream for capturing. | |
| boolean(* | ad_end )() |
| Pointer to function to close audio stream capturing. | |
| boolean(* | ad_resume )() |
| Pointer to function to begin / restart recording. | |
| boolean(* | ad_pause )() |
| Pointer to function to pause recording. | |
| int(* | ad_read )(SP16 *, int) |
| Pointer to function to read samples. | |
| int | thres |
| Input Level threshold (0-32767). | |
| int | noise_zerocross |
| Computed threshold of zerocross num in the cycle buffer. | |
| int | nc_max |
| Computed number of fragments for tail margin. | |
| boolean | adin_cut_on |
| TRUE if do input segmentation by silence. | |
| boolean | silence_cut_default |
| Device-dependent default value of adin_cut_on(). | |
| boolean | strip_flag |
| TRUE if skip invalid zero samples. | |
| boolean | enable_thread |
| TRUE if input device needs threading. | |
| boolean | need_zmean |
| TRUE if perform zmeansource. | |
| int | c_length |
| Computed length of cycle buffer for zero-cross, actually equals to head margin length. | |
| int | c_offset |
| Static data DC offset (obsolute, should be 0). | |
| SP16 * | swapbuf |
| Buffer for re-triggering in tail margin. | |
| int | sbsize |
| Size of swapbuf. | |
| int | sblen |
| Current length of swapbuf. | |
| int | rest_tail |
| Samples not processed yet in swap buffer. | |
| ZEROCROSS | zc |
| Work area for zero-cross computation. | |
| pthread_mutex_t | mutex |
| Lock primitive. | |
| SP16 * | speech |
| Unprocessed samples recorded by A/D-in thread. | |
| int | speechlen |
| Current length of speech. | |
| boolean | transfer_online |
| boolean | adinthread_buffer_overflowed |
| TRUE if buffer overflow occured in adin thread. | |
| boolean | ignore_speech_while_recog |
| TRUE if ignore speech input between call, while waiting recognition process. | |
| SP16 * | buffer |
| Temporary buffer to hold input samples. | |
| int | bpmax |
| Maximum length of buffer. | |
| int | bp |
| Current point to store the next data. | |
| int | current_len |
| Current length of stored samples. | |
| SP16 * | cbuf |
| Buffer for flushing cycle buffer just after detecting trigger. | |
| boolean | down_sample |
| TRUE if perform down sampling from 48kHz to 16kHz. | |
| SP16 * | buffer48 |
| Another temporary buffer to hold 48kHz inputs. | |
| int | io_rate |
| frequency rate (should be 3 always for 48/16 conversion | |
| boolean | is_valid_data |
| TRUE if we are now triggered. | |
| int | nc |
| count of current tail silence segments | |
| boolean | end_of_stream |
| TRUE if we have reached the end of stream. | |
| boolean | need_init |
| if TRUE, initialize buffer on startup | |
| DS_BUFFER * | ds |
| Filter buffer for 48-to-16 conversion. | |
| boolean | rehash |
| TRUE is want rehash at rewinding on decoder-based VAD. | |
Definition at line 319 of file recog.h.
1.5.4