Lines Matching refs:buffer
47 void *buffer; // main buffer
48 size_t buf_size; // main buffer size in frames
49 size_t frames_in; // number of frames in main buffer
50 void *wr_buf; // buffer for input conversions
51 size_t wr_buf_size; // size of conversion buffer in frames
52 size_t wr_frames_in; // number of frames in conversion buffer
53 void *wr_src_buf; // resampler input buf (either wr_buf or buffer used by write())
56 int32_t playback_delay; // playback buffer delay indicated by last write()
60 struct resampler_buffer_provider provider; // resampler buffer provider
65 struct resampler_buffer* buffer)
77 buffer->raw = NULL;
78 buffer->frame_count = 0;
82 buffer->frame_count = (buffer->frame_count > er->wr_frames_in) ? er->wr_frames_in : buffer->frame_count;
84 buffer->i16 = (int16_t *)er->wr_src_buf + (er->wr_buf_size - er->wr_frames_in) * er->rd_channel_count;
90 struct resampler_buffer* buffer)
101 er->wr_frames_in -= buffer->frame_count;
107 free(er->buffer);
108 er->buffer = NULL;
119 struct echo_reference_buffer *buffer)
130 if (buffer == NULL) {
137 LOGV("echo_reference_write() START trying to write %d frames", buffer->frame_count);
139 (int)buffer->time_stamp.tv_sec,
140 (int)buffer->time_stamp.tv_nsec, er->playback_delay);
142 //LOGV("echo_reference_write() %d frames", buffer->frame_count);
145 if ((buffer->time_stamp.tv_sec == 0) && (buffer->time_stamp.tv_nsec == 0) &&
162 er->wr_render_time.tv_sec = buffer->time_stamp.tv_sec;
163 er->wr_render_time.tv_nsec = buffer->time_stamp.tv_nsec;
165 er->playback_delay = buffer->delay_ns;
172 if (er->wr_buf_size < buffer->frame_count) {
173 er->wr_buf_size = buffer->frame_count;
174 //max buffer size is normally function of read sampling rate but as write sampling rate
179 inFrames = buffer->frame_count;
182 int16_t *src16 = (int16_t *)buffer->raw;
184 size_t frames = buffer->frame_count;
215 er->wr_src_buf = buffer->raw;
217 er->wr_frames_in = buffer->frame_count;
230 inFrames = buffer->frame_count;
231 srcBuf = buffer->raw;
235 LOGV("echo_reference_write() increasing buffer size from %d to %d",
238 er->buffer = realloc(er->buffer, er->buf_size * er->rd_frame_size);
240 memcpy((char *)er->buffer + er->frames_in * er->rd_frame_size,
259 #define MIN_DELAY_UPDATE_NS 62500 // delay jump threshold to update ref buffer
264 struct echo_reference_buffer *buffer)
274 if (buffer == NULL) {
280 LOGV("EchoReference::read() START, delayCapture:[%d],er->frames_in:[%d],buffer->frame_count:[%d]",
281 buffer->delay_ns, er->frames_in, buffer->frame_count);
290 memset(buffer->raw, 0, er->rd_frame_size * buffer->frame_count);
291 buffer->delay_ns = 0;
295 // LOGV("EchoReference::read() %d frames", buffer->frame_count);
298 if (er->frames_in < buffer->frame_count) {
299 uint32_t timeoutMs = (uint32_t)((1000 * buffer->frame_count) / er->rd_sampling_rate / 2);
306 if (er->frames_in < buffer->frame_count) {
308 " er->frames_in: %d, buffer->frame_count = %d",
309 timeoutMs, er->frames_in, buffer->frame_count);
310 buffer->frame_count = er->frames_in;
318 (buffer->time_stamp.tv_sec == 0 && buffer->time_stamp.tv_nsec == 0)) {
323 if (buffer->time_stamp.tv_nsec < er->wr_render_time.tv_nsec) {
324 tmp.tv_sec = buffer->time_stamp.tv_sec - er->wr_render_time.tv_sec - 1;
325 tmp.tv_nsec = 1000000000 + buffer->time_stamp.tv_nsec - er->wr_render_time.tv_nsec;
327 tmp.tv_sec = buffer->time_stamp.tv_sec - er->wr_render_time.tv_sec;
328 tmp.tv_nsec = buffer->time_stamp.tv_nsec - er->wr_render_time.tv_nsec;
332 int64_t expectedDelayNs = er->playback_delay + buffer->delay_ns - timeDiff;
335 expectedDelayNs, er->playback_delay, buffer->delay_ns, timeDiff);
353 er->buffer = realloc(er->buffer, er->frames_in * er->rd_frame_size);
354 LOGV("EchoReference::read: increasing buffer size to %d", er->buf_size);
358 memset((char *)er->buffer + previousFrameIn * er->rd_frame_size,
367 "framesInInt: [%d], offset:[%d], buffer->frame_count:[%d]",
368 previousFrameIn, framesInInt, offset, buffer->frame_count);
370 if (framesInInt < (int)buffer->frame_count) {
372 memset((char *)er->buffer + framesInInt * er->rd_frame_size,
373 0, (buffer->frame_count-framesInInt) * er->rd_frame_size);
374 LOGV("EchoReference::read: pushing [%d] zeros into ref buffer",
375 (buffer->frame_count-framesInInt));
379 framesInInt = buffer->frame_count;
382 memcpy(er->buffer, (char *)er->buffer + (offset * er->rd_frame_size),
384 LOGV("EchoReference::read: shifting ref buffer by [%d]",framesInInt);
395 expectedDelayNs, er->playback_delay, buffer->delay_ns, timeDiff);
399 memcpy(buffer->raw,
400 (char *)er->buffer,
401 buffer->frame_count * er->rd_frame_size);
403 er->frames_in -= buffer->frame_count;
404 memcpy(er->buffer,
405 (char *)er->buffer + buffer->frame_count * er->rd_frame_size,
408 // As the reference buffer is now time aligned to the microphone signal there is a zero delay
409 buffer->delay_ns = 0;
412 buffer->frame_count, er->frames_in);
