зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1221580 - Update libcubeb to revision 7d00ea6705. r=kinetik,achronop
MozReview-Commit-ID: 8q8Va6I2hru --HG-- extra : rebase_source : bbc96137fdd4469d57fe99f41ad1baa97e05d468
This commit is contained in:
Paul Adenot
Родитель
611b41a2e4
Коммит
8ad630e34b
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@ -25,8 +25,15 @@ typedef enum {
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* Create a resampler to adapt the requested sample rate into something that
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* is accepted by the audio backend.
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* @param stream A cubeb_stream instance supplied to the data callback.
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* @param params Used to calculate bytes per frame and buffer size for resampling.
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* @param target_rate The sampling rate after resampling.
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* @param input_params Used to calculate bytes per frame and buffer size for
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* resampling of the input side of the stream. NULL if input should not be
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* resampled.
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* @param output_params Used to calculate bytes per frame and buffer size for
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* resampling of the output side of the stream. NULL if output should not be
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* resampled.
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* @param target_rate The sampling rate after resampling for the input side of
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* the stream, and/or the sampling rate prior to resampling of the output side
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* of the stream.
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* @param callback A callback to request data for resampling.
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* @param user_ptr User data supplied to the data callback.
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* @param quality Quality of the resampler.
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@ -47,8 +54,8 @@ cubeb_resampler * cubeb_resampler_create(cubeb_stream * stream,
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* @param input_buffer A buffer of input samples
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* @param input_frame_count The size of the buffer. Returns the number of frames
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* consumed.
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* @param buffer The buffer to be filled.
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* @param frames_needed Number of frames that should be produced.
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* @param output_buffer The buffer to be filled.
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* @param output_frames_needed Number of frames that should be produced.
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* @retval Number of frames that are actually produced.
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* @retval CUBEB_ERROR on error.
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*/
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@ -4,6 +4,7 @@
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* This program is made available under an ISC-style license. See the
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* accompanying file LICENSE for details.
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*/
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#include <inttypes.h>
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#include <math.h>
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#include <poll.h>
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#include <pthread.h>
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@ -32,14 +33,19 @@ struct cubeb_stream {
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pthread_t th; /* to run real-time audio i/o */
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pthread_mutex_t mtx; /* protects hdl and pos */
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struct sio_hdl *hdl; /* link us to sndio */
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int mode; /* bitmap of SIO_{PLAY,REC} */
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int active; /* cubec_start() called */
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int conv; /* need float->s16 conversion */
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unsigned char *buf; /* data is prepared here */
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unsigned int nfr; /* number of frames in buf */
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unsigned int bpf; /* bytes per frame */
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unsigned char *rbuf; /* rec data consumed from here */
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unsigned char *pbuf; /* play data is prepared here */
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unsigned int nfr; /* number of frames in ibuf and obuf */
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unsigned int rbpf; /* rec bytes per frame */
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unsigned int pbpf; /* play bytes per frame */
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unsigned int rchan; /* number of rec channels */
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unsigned int pchan; /* number of play channels */
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uint64_t rdpos; /* frame number Joe hears right now */
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uint64_t wrpos; /* number of written frames */
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unsigned int nblks; /* number of blocks in the buffer */
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uint64_t hwpos; /* frame number Joe hears right now */
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uint64_t swpos; /* number of frames produced/consumed */
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cubeb_data_callback data_cb; /* cb to preapare data */
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cubeb_state_callback state_cb; /* cb to notify about state changes */
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void *arg; /* user arg to {data,state}_cb */
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@ -62,12 +68,24 @@ float_to_s16(void *ptr, long nsamp)
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}
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}
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static void
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s16_to_float(void *ptr, long nsamp)
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{
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int16_t *src = ptr;
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float *dst = ptr;
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src += nsamp;
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dst += nsamp;
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while (nsamp-- > 0)
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*(--dst) = (1. / 32768) * *(--src);
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}
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static void
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sndio_onmove(void *arg, int delta)
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{
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cubeb_stream *s = (cubeb_stream *)arg;
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s->rdpos += delta * s->bpf;
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s->hwpos += delta;
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}
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static void *
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@ -76,8 +94,8 @@ sndio_mainloop(void *arg)
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#define MAXFDS 8
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struct pollfd pfds[MAXFDS];
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cubeb_stream *s = arg;
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int n, nfds, revents, state = CUBEB_STATE_STARTED;
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size_t start = 0, end = 0;
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int n, eof = 0, prime, nfds, events, revents, state = CUBEB_STATE_STARTED;
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size_t pstart = 0, pend = 0, rstart = 0, rend = 0;
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long nfr;
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DPR("sndio_mainloop()\n");
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@ -89,35 +107,82 @@ sndio_mainloop(void *arg)
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}
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DPR("sndio_mainloop(), started\n");
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start = end = s->nfr;
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if (s->mode & SIO_PLAY) {
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pstart = pend = s->nfr * s->pbpf;
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prime = s->nblks;
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if (s->mode & SIO_REC) {
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memset(s->rbuf, 0, s->nfr * s->rbpf);
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rstart = rend = s->nfr * s->rbpf;
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}
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} else {
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prime = 0;
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rstart = 0;
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rend = s->nfr * s->rbpf;
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}
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for (;;) {
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if (!s->active) {
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DPR("sndio_mainloop() stopped\n");
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state = CUBEB_STATE_STOPPED;
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break;
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}
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if (start == end) {
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if (end < s->nfr) {
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/* do we have a complete block? */
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if ((!(s->mode & SIO_PLAY) || pstart == pend) &&
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(!(s->mode & SIO_REC) || rstart == rend)) {
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if (eof) {
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DPR("sndio_mainloop() drained\n");
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state = CUBEB_STATE_DRAINED;
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break;
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}
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if ((s->mode & SIO_REC) && s->conv)
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s16_to_float(s->rbuf, s->nfr * s->rchan);
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/* invoke call-back, it returns less that s->nfr if done */
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pthread_mutex_unlock(&s->mtx);
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nfr = s->data_cb(s, s->arg, NULL, s->buf, s->nfr);
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nfr = s->data_cb(s, s->arg, s->rbuf, s->pbuf, s->nfr);
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pthread_mutex_lock(&s->mtx);
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if (nfr < 0) {
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DPR("sndio_mainloop() cb err\n");
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state = CUBEB_STATE_ERROR;
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break;
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}
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if (s->conv)
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float_to_s16(s->buf, nfr * s->pchan);
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start = 0;
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end = nfr * s->bpf;
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s->swpos += nfr;
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/* was this last call-back invocation (aka end-of-stream) ? */
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if (nfr < s->nfr) {
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if (!(s->mode & SIO_PLAY) || nfr == 0) {
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state = CUBEB_STATE_DRAINED;
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break;
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}
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/* need to write (aka drain) the partial play block we got */
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pend = nfr * s->pbpf;
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eof = 1;
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}
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if (prime > 0)
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prime--;
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if ((s->mode & SIO_PLAY) && s->conv)
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float_to_s16(s->pbuf, nfr * s->pchan);
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if (s->mode & SIO_REC)
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rstart = 0;
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if (s->mode & SIO_PLAY)
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pstart = 0;
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}
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if (end == 0)
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continue;
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nfds = sio_pollfd(s->hdl, pfds, POLLOUT);
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events = 0;
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if ((s->mode & SIO_REC) && rstart < rend && prime == 0)
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events |= POLLIN;
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if ((s->mode & SIO_PLAY) && pstart < pend)
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events |= POLLOUT;
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nfds = sio_pollfd(s->hdl, pfds, events);
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if (nfds > 0) {
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pthread_mutex_unlock(&s->mtx);
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n = poll(pfds, nfds, -1);
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@ -125,22 +190,40 @@ sndio_mainloop(void *arg)
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if (n < 0)
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continue;
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}
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revents = sio_revents(s->hdl, pfds);
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if (revents & POLLHUP)
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if (revents & POLLHUP) {
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state = CUBEB_STATE_ERROR;
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break;
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}
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if (revents & POLLOUT) {
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n = sio_write(s->hdl, s->buf + start, end - start);
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if (n == 0) {
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n = sio_write(s->hdl, s->pbuf + pstart, pend - pstart);
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if (n == 0 && sio_eof(s->hdl)) {
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DPR("sndio_mainloop() werr\n");
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state = CUBEB_STATE_ERROR;
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break;
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}
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s->wrpos += n;
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start += n;
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pstart += n;
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}
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if (revents & POLLIN) {
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n = sio_read(s->hdl, s->rbuf + rstart, rend - rstart);
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if (n == 0 && sio_eof(s->hdl)) {
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DPR("sndio_mainloop() rerr\n");
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state = CUBEB_STATE_ERROR;
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break;
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}
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rstart += n;
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}
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/* skip rec block, if not recording (yet) */
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if (prime > 0 && (s->mode & SIO_REC))
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rstart = rend;
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}
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sio_stop(s->hdl);
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s->rdpos = s->wrpos;
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s->hwpos = s->swpos;
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pthread_mutex_unlock(&s->mtx);
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s->state_cb(s, s->arg, state);
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return NULL;
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@ -184,29 +267,41 @@ sndio_stream_init(cubeb * context,
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{
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cubeb_stream *s;
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struct sio_par wpar, rpar;
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DPR("sndio_stream_init(%s)\n", stream_name);
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size_t size;
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cubeb_sample_format format;
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int rate;
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size_t bps;
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assert(!input_stream_params && "not supported.");
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if (input_device || output_device) {
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/* Device selection not yet implemented. */
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return CUBEB_ERROR_DEVICE_UNAVAILABLE;
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}
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DPR("sndio_stream_init(%s)\n", stream_name);
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s = malloc(sizeof(cubeb_stream));
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if (s == NULL)
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return CUBEB_ERROR;
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memset(s, 0, sizeof(cubeb_stream));
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s->mode = 0;
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if (input_stream_params) {
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s->mode |= SIO_REC;
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format = input_stream_params->format;
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rate = input_stream_params->rate;
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}
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if (output_stream_params) {
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s->mode |= SIO_PLAY;
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format = output_stream_params->format;
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rate = output_stream_params->rate;
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}
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if (s->mode == 0) {
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DPR("sndio_stream_init(), neither playing nor recording\n");
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goto err;
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}
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s->context = context;
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s->hdl = sio_open(NULL, SIO_PLAY, 1);
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s->hdl = sio_open(NULL, s->mode, 1);
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if (s->hdl == NULL) {
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free(s);
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DPR("sndio_stream_init(), sio_open() failed\n");
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return CUBEB_ERROR;
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goto err;
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}
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sio_initpar(&wpar);
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wpar.sig = 1;
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wpar.bits = 16;
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switch (output_stream_params->format) {
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switch (format) {
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case CUBEB_SAMPLE_S16LE:
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wpar.le = 1;
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break;
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@ -217,56 +312,70 @@ sndio_stream_init(cubeb * context,
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wpar.le = SIO_LE_NATIVE;
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break;
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default:
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sio_close(s->hdl);
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free(s);
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DPR("sndio_stream_init() unsupported format\n");
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return CUBEB_ERROR_INVALID_FORMAT;
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goto err;
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}
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wpar.rate = output_stream_params->rate;
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wpar.pchan = output_stream_params->channels;
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wpar.rate = rate;
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if (s->mode & SIO_REC)
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wpar.rchan = input_stream_params->channels;
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if (s->mode & SIO_PLAY)
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wpar.pchan = output_stream_params->channels;
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wpar.appbufsz = latency_frames;
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if (!sio_setpar(s->hdl, &wpar) || !sio_getpar(s->hdl, &rpar)) {
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sio_close(s->hdl);
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free(s);
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DPR("sndio_stream_init(), sio_setpar() failed\n");
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return CUBEB_ERROR;
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goto err;
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}
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if (rpar.bits != wpar.bits || rpar.le != wpar.le ||
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rpar.sig != wpar.sig || rpar.rate != wpar.rate ||
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rpar.pchan != wpar.pchan) {
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sio_close(s->hdl);
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free(s);
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((s->mode & SIO_REC) && rpar.rchan != wpar.rchan) ||
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((s->mode & SIO_PLAY) && rpar.pchan != wpar.pchan)) {
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DPR("sndio_stream_init() unsupported params\n");
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return CUBEB_ERROR_INVALID_FORMAT;
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goto err;
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}
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sio_onmove(s->hdl, sndio_onmove, s);
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s->active = 0;
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s->nfr = rpar.round;
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s->bpf = rpar.bps * rpar.pchan;
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s->rbpf = rpar.bps * rpar.rchan;
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s->pbpf = rpar.bps * rpar.pchan;
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s->rchan = rpar.rchan;
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s->pchan = rpar.pchan;
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s->nblks = rpar.bufsz / rpar.round;
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s->data_cb = data_callback;
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s->state_cb = state_callback;
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s->arg = user_ptr;
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s->mtx = (pthread_mutex_t)PTHREAD_MUTEX_INITIALIZER;
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s->rdpos = s->wrpos = 0;
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if (output_stream_params->format == CUBEB_SAMPLE_FLOAT32LE) {
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s->hwpos = s->swpos = 0;
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if (format == CUBEB_SAMPLE_FLOAT32LE) {
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s->conv = 1;
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size = rpar.round * rpar.pchan * sizeof(float);
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bps = sizeof(float);
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} else {
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s->conv = 0;
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size = rpar.round * rpar.pchan * rpar.bps;
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bps = rpar.bps;
|
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}
|
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s->buf = malloc(size);
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if (s->buf == NULL) {
|
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sio_close(s->hdl);
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free(s);
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return CUBEB_ERROR;
|
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if (s->mode & SIO_PLAY) {
|
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s->pbuf = malloc(bps * rpar.pchan * rpar.round);
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if (s->pbuf == NULL)
|
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goto err;
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}
|
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if (s->mode & SIO_REC) {
|
||||
s->rbuf = malloc(bps * rpar.rchan * rpar.round);
|
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if (s->rbuf == NULL)
|
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goto err;
|
||||
}
|
||||
*stream = s;
|
||||
DPR("sndio_stream_init() end, ok\n");
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(void)context;
|
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(void)stream_name;
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||||
return CUBEB_OK;
|
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err:
|
||||
if (s->hdl)
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sio_close(s->hdl);
|
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if (s->pbuf)
|
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free(s->pbuf);
|
||||
if (s->rbuf)
|
||||
free(s->pbuf);
|
||||
free(s);
|
||||
return CUBEB_ERROR;
|
||||
}
|
||||
|
||||
static int
|
||||
|
|
@ -282,16 +391,21 @@ sndio_get_max_channel_count(cubeb * ctx, uint32_t * max_channels)
|
|||
static int
|
||||
sndio_get_preferred_sample_rate(cubeb * ctx, uint32_t * rate)
|
||||
{
|
||||
// XXX Not yet implemented.
|
||||
*rate = 44100;
|
||||
|
||||
/*
|
||||
* We've no device-independent prefered rate; any rate will work if
|
||||
* sndiod is running. If it isn't, 48kHz is what is most likely to
|
||||
* work as most (but not all) devices support it.
|
||||
*/
|
||||
*rate = 48000;
|
||||
return CUBEB_OK;
|
||||
}
|
||||
|
||||
static int
|
||||
sndio_get_min_latency(cubeb * ctx, cubeb_stream_params params, uint32_t * latency_frames)
|
||||
{
|
||||
// XXX Not yet implemented.
|
||||
/*
|
||||
* We've no device-independent minimum latency.
|
||||
*/
|
||||
*latency_frames = 2048;
|
||||
|
||||
return CUBEB_OK;
|
||||
|
|
@ -302,6 +416,10 @@ sndio_stream_destroy(cubeb_stream *s)
|
|||
{
|
||||
DPR("sndio_stream_destroy()\n");
|
||||
sio_close(s->hdl);
|
||||
if (s->mode & SIO_PLAY)
|
||||
free(s->pbuf);
|
||||
if (s->mode & SIO_REC)
|
||||
free(s->rbuf);
|
||||
free(s);
|
||||
}
|
||||
|
||||
|
|
@ -337,8 +455,8 @@ static int
|
|||
sndio_stream_get_position(cubeb_stream *s, uint64_t *p)
|
||||
{
|
||||
pthread_mutex_lock(&s->mtx);
|
||||
DPR("sndio_stream_get_position() %lld\n", s->rdpos);
|
||||
*p = s->rdpos / s->bpf;
|
||||
DPR("sndio_stream_get_position() %" PRId64 "\n", s->hwpos);
|
||||
*p = s->hwpos;
|
||||
pthread_mutex_unlock(&s->mtx);
|
||||
return CUBEB_OK;
|
||||
}
|
||||
|
|
@ -358,7 +476,47 @@ sndio_stream_get_latency(cubeb_stream * stm, uint32_t * latency)
|
|||
{
|
||||
// http://www.openbsd.org/cgi-bin/man.cgi?query=sio_open
|
||||
// in the "Measuring the latency and buffers usage" paragraph.
|
||||
*latency = (stm->wrpos - stm->rdpos) / stm->bpf;
|
||||
*latency = stm->swpos - stm->hwpos;
|
||||
return CUBEB_OK;
|
||||
}
|
||||
|
||||
static int
|
||||
sndio_enumerate_devices(cubeb *context, cubeb_device_type type,
|
||||
cubeb_device_collection *collection)
|
||||
{
|
||||
static char dev[] = SIO_DEVANY;
|
||||
cubeb_device_info *device;
|
||||
|
||||
device = malloc(sizeof(cubeb_device_info));
|
||||
if (device == NULL)
|
||||
return CUBEB_ERROR;
|
||||
|
||||
device->devid = dev; /* passed to stream_init() */
|
||||
device->device_id = dev; /* printable in UI */
|
||||
device->friendly_name = dev; /* same, but friendly */
|
||||
device->group_id = dev; /* actual device if full-duplex */
|
||||
device->vendor_name = NULL; /* may be NULL */
|
||||
device->type = type; /* Input/Output */
|
||||
device->state = CUBEB_DEVICE_STATE_ENABLED;
|
||||
device->preferred = CUBEB_DEVICE_PREF_ALL;
|
||||
device->format = CUBEB_DEVICE_FMT_S16NE;
|
||||
device->default_format = CUBEB_DEVICE_FMT_S16NE;
|
||||
device->max_channels = 16;
|
||||
device->default_rate = 48000;
|
||||
device->min_rate = 4000;
|
||||
device->max_rate = 192000;
|
||||
device->latency_lo = 480;
|
||||
device->latency_hi = 9600;
|
||||
collection->device = device;
|
||||
collection->count = 1;
|
||||
return CUBEB_OK;
|
||||
}
|
||||
|
||||
static int
|
||||
sndio_device_collection_destroy(cubeb * context,
|
||||
cubeb_device_collection * collection)
|
||||
{
|
||||
free(collection->device);
|
||||
return CUBEB_OK;
|
||||
}
|
||||
|
||||
|
|
@ -369,8 +527,8 @@ static struct cubeb_ops const sndio_ops = {
|
|||
.get_min_latency = sndio_get_min_latency,
|
||||
.get_preferred_sample_rate = sndio_get_preferred_sample_rate,
|
||||
.get_preferred_channel_layout = NULL,
|
||||
.enumerate_devices = NULL,
|
||||
.device_collection_destroy = NULL,
|
||||
.enumerate_devices = sndio_enumerate_devices,
|
||||
.device_collection_destroy = sndio_device_collection_destroy,
|
||||
.destroy = sndio_destroy,
|
||||
.stream_init = sndio_stream_init,
|
||||
.stream_destroy = sndio_stream_destroy,
|
||||
|
|
|
|||
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