diff options
Diffstat (limited to 'src/pulse/stream.c')
| -rw-r--r-- | src/pulse/stream.c | 2258 |
1 files changed, 2258 insertions, 0 deletions
diff --git a/src/pulse/stream.c b/src/pulse/stream.c new file mode 100644 index 00000000..3bee7a05 --- /dev/null +++ b/src/pulse/stream.c @@ -0,0 +1,2258 @@ +/*** + This file is part of PulseAudio. + + Copyright 2004-2006 Lennart Poettering + Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> +#include <stdio.h> +#include <string.h> + +#include <pulse/def.h> +#include <pulse/timeval.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/pstream-util.h> +#include <pulsecore/log.h> +#include <pulsecore/hashmap.h> +#include <pulsecore/macro.h> +#include <pulsecore/rtclock.h> + +#include "internal.h" + +#define LATENCY_IPOL_INTERVAL_USEC (333*PA_USEC_PER_MSEC) + +#define SMOOTHER_ADJUST_TIME (1000*PA_USEC_PER_MSEC) +#define SMOOTHER_HISTORY_TIME (5000*PA_USEC_PER_MSEC) +#define SMOOTHER_MIN_HISTORY (4) + +pa_stream *pa_stream_new(pa_context *c, const char *name, const pa_sample_spec *ss, const pa_channel_map *map) { + return pa_stream_new_with_proplist(c, name, ss, map, NULL); +} + +static void reset_callbacks(pa_stream *s) { + s->read_callback = NULL; + s->read_userdata = NULL; + s->write_callback = NULL; + s->write_userdata = NULL; + s->state_callback = NULL; + s->state_userdata = NULL; + s->overflow_callback = NULL; + s->overflow_userdata = NULL; + s->underflow_callback = NULL; + s->underflow_userdata = NULL; + s->latency_update_callback = NULL; + s->latency_update_userdata = NULL; + s->moved_callback = NULL; + s->moved_userdata = NULL; + s->suspended_callback = NULL; + s->suspended_userdata = NULL; + s->started_callback = NULL; + s->started_userdata = NULL; +} + +pa_stream *pa_stream_new_with_proplist( + pa_context *c, + const char *name, + const pa_sample_spec *ss, + const pa_channel_map *map, + pa_proplist *p) { + + pa_stream *s; + int i; + pa_channel_map tmap; + + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(c, ss && pa_sample_spec_valid(ss), PA_ERR_INVALID); + PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 12 || (ss->format != PA_SAMPLE_S32LE || ss->format != PA_SAMPLE_S32NE), PA_ERR_NOTSUPPORTED); + PA_CHECK_VALIDITY_RETURN_NULL(c, !map || (pa_channel_map_valid(map) && map->channels == ss->channels), PA_ERR_INVALID); + PA_CHECK_VALIDITY_RETURN_NULL(c, name || (p && pa_proplist_contains(p, PA_PROP_MEDIA_NAME)), PA_ERR_INVALID); + + if (!map) + PA_CHECK_VALIDITY_RETURN_NULL(c, map = pa_channel_map_init_auto(&tmap, ss->channels, PA_CHANNEL_MAP_DEFAULT), PA_ERR_INVALID); + + s = pa_xnew(pa_stream, 1); + PA_REFCNT_INIT(s); + s->context = c; + s->mainloop = c->mainloop; + + s->direction = PA_STREAM_NODIRECTION; + s->state = PA_STREAM_UNCONNECTED; + s->flags = 0; + + s->sample_spec = *ss; + s->channel_map = *map; + + s->direct_on_input = PA_INVALID_INDEX; + + s->proplist = p ? pa_proplist_copy(p) : pa_proplist_new(); + if (name) + pa_proplist_sets(s->proplist, PA_PROP_MEDIA_NAME, name); + + s->channel = 0; + s->channel_valid = FALSE; + s->syncid = c->csyncid++; + s->stream_index = PA_INVALID_INDEX; + + s->requested_bytes = 0; + memset(&s->buffer_attr, 0, sizeof(s->buffer_attr)); + + s->device_index = PA_INVALID_INDEX; + s->device_name = NULL; + s->suspended = FALSE; + + pa_memchunk_reset(&s->peek_memchunk); + s->peek_data = NULL; + + s->record_memblockq = NULL; + + s->corked = FALSE; + + memset(&s->timing_info, 0, sizeof(s->timing_info)); + s->timing_info_valid = FALSE; + + s->previous_time = 0; + + s->read_index_not_before = 0; + s->write_index_not_before = 0; + for (i = 0; i < PA_MAX_WRITE_INDEX_CORRECTIONS; i++) + s->write_index_corrections[i].valid = 0; + s->current_write_index_correction = 0; + + s->auto_timing_update_event = NULL; + s->auto_timing_update_requested = FALSE; + + reset_callbacks(s); + + s->smoother = NULL; + + /* Refcounting is strictly one-way: from the "bigger" to the "smaller" object. */ + PA_LLIST_PREPEND(pa_stream, c->streams, s); + pa_stream_ref(s); + + return s; +} + +static void stream_unlink(pa_stream *s) { + pa_operation *o, *n; + pa_assert(s); + + if (!s->context) + return; + + /* Detach from context */ + + /* Unref all operatio object that point to us */ + for (o = s->context->operations; o; o = n) { + n = o->next; + + if (o->stream == s) + pa_operation_cancel(o); + } + + /* Drop all outstanding replies for this stream */ + if (s->context->pdispatch) + pa_pdispatch_unregister_reply(s->context->pdispatch, s); + + if (s->channel_valid) { + pa_dynarray_put((s->direction == PA_STREAM_PLAYBACK) ? s->context->playback_streams : s->context->record_streams, s->channel, NULL); + s->channel = 0; + s->channel_valid = FALSE; + } + + PA_LLIST_REMOVE(pa_stream, s->context->streams, s); + pa_stream_unref(s); + + s->context = NULL; + + if (s->auto_timing_update_event) { + pa_assert(s->mainloop); + s->mainloop->time_free(s->auto_timing_update_event); + } + + reset_callbacks(s); +} + +static void stream_free(pa_stream *s) { + pa_assert(s); + + stream_unlink(s); + + if (s->peek_memchunk.memblock) { + if (s->peek_data) + pa_memblock_release(s->peek_memchunk.memblock); + pa_memblock_unref(s->peek_memchunk.memblock); + } + + if (s->record_memblockq) + pa_memblockq_free(s->record_memblockq); + + if (s->proplist) + pa_proplist_free(s->proplist); + + if (s->smoother) + pa_smoother_free(s->smoother); + + pa_xfree(s->device_name); + pa_xfree(s); +} + +void pa_stream_unref(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + if (PA_REFCNT_DEC(s) <= 0) + stream_free(s); +} + +pa_stream* pa_stream_ref(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_REFCNT_INC(s); + return s; +} + +pa_stream_state_t pa_stream_get_state(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + return s->state; +} + +pa_context* pa_stream_get_context(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + return s->context; +} + +uint32_t pa_stream_get_index(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE, PA_INVALID_INDEX); + + return s->stream_index; +} + +void pa_stream_set_state(pa_stream *s, pa_stream_state_t st) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + if (s->state == st) + return; + + pa_stream_ref(s); + + s->state = st; + + if (s->state_callback) + s->state_callback(s, s->state_userdata); + + if ((st == PA_STREAM_FAILED || st == PA_STREAM_TERMINATED)) + stream_unlink(s); + + pa_stream_unref(s); +} + +static void request_auto_timing_update(pa_stream *s, pa_bool_t force) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + if (!(s->flags & PA_STREAM_AUTO_TIMING_UPDATE)) + return; + + if (s->state == PA_STREAM_READY && + (force || !s->auto_timing_update_requested)) { + pa_operation *o; + +/* pa_log("automatically requesting new timing data"); */ + + if ((o = pa_stream_update_timing_info(s, NULL, NULL))) { + pa_operation_unref(o); + s->auto_timing_update_requested = TRUE; + } + } + + if (s->auto_timing_update_event) { + struct timeval next; + pa_gettimeofday(&next); + pa_timeval_add(&next, LATENCY_IPOL_INTERVAL_USEC); + s->mainloop->time_restart(s->auto_timing_update_event, &next); + } +} + +void pa_command_stream_killed(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_context *c = userdata; + pa_stream *s; + uint32_t channel; + + pa_assert(pd); + pa_assert(command == PA_COMMAND_PLAYBACK_STREAM_KILLED || command == PA_COMMAND_RECORD_STREAM_KILLED); + pa_assert(t); + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + + pa_context_ref(c); + + if (pa_tagstruct_getu32(t, &channel) < 0 || + !pa_tagstruct_eof(t)) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + + if (!(s = pa_dynarray_get(command == PA_COMMAND_PLAYBACK_STREAM_KILLED ? c->playback_streams : c->record_streams, channel))) + goto finish; + + if (s->state != PA_STREAM_READY) + goto finish; + + pa_context_set_error(c, PA_ERR_KILLED); + pa_stream_set_state(s, PA_STREAM_FAILED); + +finish: + pa_context_unref(c); +} + +void pa_command_stream_moved(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_context *c = userdata; + pa_stream *s; + uint32_t channel; + const char *dn; + pa_bool_t suspended; + uint32_t di; + pa_usec_t usec; + uint32_t maxlength = 0, fragsize = 0, minreq = 0, tlength = 0, prebuf = 0; + + pa_assert(pd); + pa_assert(command == PA_COMMAND_PLAYBACK_STREAM_MOVED || command == PA_COMMAND_RECORD_STREAM_MOVED); + pa_assert(t); + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + + pa_context_ref(c); + + if (c->version < 12) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + + if (pa_tagstruct_getu32(t, &channel) < 0 || + pa_tagstruct_getu32(t, &di) < 0 || + pa_tagstruct_gets(t, &dn) < 0 || + pa_tagstruct_get_boolean(t, &suspended) < 0) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + + if (c->version >= 13) { + + if (command == PA_COMMAND_RECORD_STREAM_MOVED) { + if (pa_tagstruct_getu32(t, &maxlength) < 0 || + pa_tagstruct_getu32(t, &fragsize) < 0 || + pa_tagstruct_get_usec(t, &usec) < 0) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + } else { + if (pa_tagstruct_getu32(t, &maxlength) < 0 || + pa_tagstruct_getu32(t, &tlength) < 0 || + pa_tagstruct_getu32(t, &prebuf) < 0 || + pa_tagstruct_getu32(t, &minreq) < 0 || + pa_tagstruct_get_usec(t, &usec) < 0) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + } + } + + if (!pa_tagstruct_eof(t)) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + + if (!dn || di == PA_INVALID_INDEX) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + + if (!(s = pa_dynarray_get(command == PA_COMMAND_PLAYBACK_STREAM_MOVED ? c->playback_streams : c->record_streams, channel))) + goto finish; + + if (s->state != PA_STREAM_READY) + goto finish; + + if (c->version >= 13) { + if (s->direction == PA_STREAM_RECORD) + s->timing_info.configured_source_usec = usec; + else + s->timing_info.configured_sink_usec = usec; + + s->buffer_attr.maxlength = maxlength; + s->buffer_attr.fragsize = fragsize; + s->buffer_attr.tlength = tlength; + s->buffer_attr.prebuf = prebuf; + s->buffer_attr.minreq = minreq; + } + + pa_xfree(s->device_name); + s->device_name = pa_xstrdup(dn); + s->device_index = di; + + s->suspended = suspended; + + request_auto_timing_update(s, TRUE); + + if (s->moved_callback) + s->moved_callback(s, s->moved_userdata); + +finish: + pa_context_unref(c); +} + +void pa_command_stream_suspended(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_context *c = userdata; + pa_stream *s; + uint32_t channel; + pa_bool_t suspended; + + pa_assert(pd); + pa_assert(command == PA_COMMAND_PLAYBACK_STREAM_SUSPENDED || command == PA_COMMAND_RECORD_STREAM_SUSPENDED); + pa_assert(t); + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + + pa_context_ref(c); + + if (c->version < 12) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + + if (pa_tagstruct_getu32(t, &channel) < 0 || + pa_tagstruct_get_boolean(t, &suspended) < 0 || + !pa_tagstruct_eof(t)) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + + if (!(s = pa_dynarray_get(command == PA_COMMAND_PLAYBACK_STREAM_SUSPENDED ? c->playback_streams : c->record_streams, channel))) + goto finish; + + if (s->state != PA_STREAM_READY) + goto finish; + + s->suspended = suspended; + + if (s->smoother) { + pa_usec_t x = pa_rtclock_usec(); + + if (s->timing_info_valid) + x -= s->timing_info.transport_usec; + + if (s->suspended || s->corked) + pa_smoother_pause(s->smoother, x); + else + pa_smoother_resume(s->smoother, x); + } + + request_auto_timing_update(s, TRUE); + + if (s->suspended_callback) + s->suspended_callback(s, s->suspended_userdata); + +finish: + pa_context_unref(c); +} + +void pa_command_stream_started(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_context *c = userdata; + pa_stream *s; + uint32_t channel; + + pa_assert(pd); + pa_assert(command == PA_COMMAND_STARTED); + pa_assert(t); + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + + pa_context_ref(c); + + if (c->version < 13) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + + if (pa_tagstruct_getu32(t, &channel) < 0 || + !pa_tagstruct_eof(t)) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + + if (!(s = pa_dynarray_get(c->playback_streams, channel))) + goto finish; + + if (s->state != PA_STREAM_READY) + goto finish; + + request_auto_timing_update(s, TRUE); + + if (s->started_callback) + s->started_callback(s, s->suspended_userdata); + +finish: + pa_context_unref(c); +} + +void pa_command_request(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_stream *s; + pa_context *c = userdata; + uint32_t bytes, channel; + + pa_assert(pd); + pa_assert(command == PA_COMMAND_REQUEST); + pa_assert(t); + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + + pa_context_ref(c); + + if (pa_tagstruct_getu32(t, &channel) < 0 || + pa_tagstruct_getu32(t, &bytes) < 0 || + !pa_tagstruct_eof(t)) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + + if (!(s = pa_dynarray_get(c->playback_streams, channel))) + goto finish; + + if (s->state != PA_STREAM_READY) + goto finish; + + s->requested_bytes += bytes; + + if (s->requested_bytes > 0 && s->write_callback) + s->write_callback(s, s->requested_bytes, s->write_userdata); + +finish: + pa_context_unref(c); +} + +void pa_command_overflow_or_underflow(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_stream *s; + pa_context *c = userdata; + uint32_t channel; + + pa_assert(pd); + pa_assert(command == PA_COMMAND_OVERFLOW || command == PA_COMMAND_UNDERFLOW); + pa_assert(t); + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + + pa_context_ref(c); + + if (pa_tagstruct_getu32(t, &channel) < 0 || + !pa_tagstruct_eof(t)) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + + if (!(s = pa_dynarray_get(c->playback_streams, channel))) + goto finish; + + if (s->state != PA_STREAM_READY) + goto finish; + + if (s->smoother) + if (s->direction == PA_STREAM_PLAYBACK && s->buffer_attr.prebuf > 0) { + pa_usec_t x = pa_rtclock_usec(); + + if (s->timing_info_valid) + x -= s->timing_info.transport_usec; + + pa_smoother_pause(s->smoother, x); + } + + request_auto_timing_update(s, TRUE); + + if (s->state == PA_STREAM_READY) { + + if (command == PA_COMMAND_OVERFLOW) { + if (s->overflow_callback) + s->overflow_callback(s, s->overflow_userdata); + } else if (command == PA_COMMAND_UNDERFLOW) { + if (s->underflow_callback) + s->underflow_callback(s, s->underflow_userdata); + } + } + + finish: + pa_context_unref(c); +} + +static void invalidate_indexes(pa_stream *s, pa_bool_t r, pa_bool_t w) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + +/* pa_log("invalidate r:%u w:%u tag:%u", r, w, s->context->ctag); */ + + if (s->state != PA_STREAM_READY) + return; + + if (w) { + s->write_index_not_before = s->context->ctag; + + if (s->timing_info_valid) + s->timing_info.write_index_corrupt = TRUE; + +/* pa_log("write_index invalidated"); */ + } + + if (r) { + s->read_index_not_before = s->context->ctag; + + if (s->timing_info_valid) + s->timing_info.read_index_corrupt = TRUE; + +/* pa_log("read_index invalidated"); */ + } + + request_auto_timing_update(s, TRUE); +} + +static void auto_timing_update_callback(PA_GCC_UNUSED pa_mainloop_api *m, PA_GCC_UNUSED pa_time_event *e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) { + pa_stream *s = userdata; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + pa_stream_ref(s); + request_auto_timing_update(s, FALSE); + pa_stream_unref(s); +} + +static void create_stream_complete(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + pa_assert(s->state == PA_STREAM_CREATING); + + pa_stream_set_state(s, PA_STREAM_READY); + + if (s->requested_bytes > 0 && s->write_callback) + s->write_callback(s, s->requested_bytes, s->write_userdata); + + if (s->flags & PA_STREAM_AUTO_TIMING_UPDATE) { + struct timeval tv; + pa_gettimeofday(&tv); + tv.tv_usec += LATENCY_IPOL_INTERVAL_USEC; /* every 100 ms */ + pa_assert(!s->auto_timing_update_event); + s->auto_timing_update_event = s->mainloop->time_new(s->mainloop, &tv, &auto_timing_update_callback, s); + + request_auto_timing_update(s, TRUE); + } +} + +static void automatic_buffer_attr(pa_stream *s, pa_buffer_attr *attr, const pa_sample_spec *ss) { + pa_assert(s); + pa_assert(attr); + pa_assert(ss); + + if (s->context->version >= 13) + return; + + /* Version older than 0.9.10 didn't do server side buffer_attr + * selection, hence we have to fake it on the client side */ + + if (!attr->maxlength <= 0) + attr->maxlength = 4*1024*1024; /* 4MB is the maximum queue length PulseAudio <= 0.9.9 supported. */ + + if (!attr->tlength <= 0) + attr->tlength = pa_bytes_per_second(ss)*2; /* 2s of buffering */ + + if (!attr->minreq <= 0) + attr->minreq = (2*attr->tlength)/10; /* Ask for more data when there are only 200ms left in the playback buffer */ + + if (!attr->prebuf) + attr->prebuf = attr->tlength; /* Start to play only when the playback is fully filled up once */ + + if (!attr->fragsize) + attr->fragsize = attr->tlength; /* Pass data to the app only when the buffer is filled up once */ +} + +void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_stream *s = userdata; + + pa_assert(pd); + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + pa_assert(s->state == PA_STREAM_CREATING); + + pa_stream_ref(s); + + if (command != PA_COMMAND_REPLY) { + if (pa_context_handle_error(s->context, command, t, FALSE) < 0) + goto finish; + + pa_stream_set_state(s, PA_STREAM_FAILED); + goto finish; + } + + if (pa_tagstruct_getu32(t, &s->channel) < 0 || + s->channel == PA_INVALID_INDEX || + ((s->direction != PA_STREAM_UPLOAD) && (pa_tagstruct_getu32(t, &s->stream_index) < 0 || s->stream_index == PA_INVALID_INDEX)) || + ((s->direction != PA_STREAM_RECORD) && pa_tagstruct_getu32(t, &s->requested_bytes) < 0)) { + pa_context_fail(s->context, PA_ERR_PROTOCOL); + goto finish; + } + + if (s->context->version >= 9) { + if (s->direction == PA_STREAM_PLAYBACK) { + if (pa_tagstruct_getu32(t, &s->buffer_attr.maxlength) < 0 || + pa_tagstruct_getu32(t, &s->buffer_attr.tlength) < 0 || + pa_tagstruct_getu32(t, &s->buffer_attr.prebuf) < 0 || + pa_tagstruct_getu32(t, &s->buffer_attr.minreq) < 0) { + pa_context_fail(s->context, PA_ERR_PROTOCOL); + goto finish; + } + } else if (s->direction == PA_STREAM_RECORD) { + if (pa_tagstruct_getu32(t, &s->buffer_attr.maxlength) < 0 || + pa_tagstruct_getu32(t, &s->buffer_attr.fragsize) < 0) { + pa_context_fail(s->context, PA_ERR_PROTOCOL); + goto finish; + } + } + } + + if (s->context->version >= 12 && s->direction != PA_STREAM_UPLOAD) { + pa_sample_spec ss; + pa_channel_map cm; + const char *dn = NULL; + pa_bool_t suspended; + + if (pa_tagstruct_get_sample_spec(t, &ss) < 0 || + pa_tagstruct_get_channel_map(t, &cm) < 0 || + pa_tagstruct_getu32(t, &s->device_index) < 0 || + pa_tagstruct_gets(t, &dn) < 0 || + pa_tagstruct_get_boolean(t, &suspended) < 0) { + pa_context_fail(s->context, PA_ERR_PROTOCOL); + goto finish; + } + + if (!dn || s->device_index == PA_INVALID_INDEX || + ss.channels != cm.channels || + !pa_channel_map_valid(&cm) || + !pa_sample_spec_valid(&ss) || + (!(s->flags & PA_STREAM_FIX_FORMAT) && ss.format != s->sample_spec.format) || + (!(s->flags & PA_STREAM_FIX_RATE) && ss.rate != s->sample_spec.rate) || + (!(s->flags & PA_STREAM_FIX_CHANNELS) && !pa_channel_map_equal(&cm, &s->channel_map))) { + pa_context_fail(s->context, PA_ERR_PROTOCOL); + goto finish; + } + + pa_xfree(s->device_name); + s->device_name = pa_xstrdup(dn); + s->suspended = suspended; + + s->channel_map = cm; + s->sample_spec = ss; + } + + if (s->context->version >= 13 && s->direction != PA_STREAM_UPLOAD) { + pa_usec_t usec; + + if (pa_tagstruct_get_usec(t, &usec) < 0) { + pa_context_fail(s->context, PA_ERR_PROTOCOL); + goto finish; + } + + if (s->direction == PA_STREAM_RECORD) + s->timing_info.configured_source_usec = usec; + else + s->timing_info.configured_sink_usec = usec; + } + + if (!pa_tagstruct_eof(t)) { + pa_context_fail(s->context, PA_ERR_PROTOCOL); + goto finish; + } + + if (s->direction == PA_STREAM_RECORD) { + pa_assert(!s->record_memblockq); + + s->record_memblockq = pa_memblockq_new( + 0, + s->buffer_attr.maxlength, + 0, + pa_frame_size(&s->sample_spec), + 1, + 0, + 0, + NULL); + } + + s->channel_valid = TRUE; + pa_dynarray_put((s->direction == PA_STREAM_RECORD) ? s->context->record_streams : s->context->playback_streams, s->channel, s); + + create_stream_complete(s); + +finish: + pa_stream_unref(s); +} + +static int create_stream( + pa_stream_direction_t direction, + pa_stream *s, + const char *dev, + const pa_buffer_attr *attr, + pa_stream_flags_t flags, + const pa_cvolume *volume, + pa_stream *sync_stream) { + + pa_tagstruct *t; + uint32_t tag; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + pa_assert(direction == PA_STREAM_PLAYBACK || direction == PA_STREAM_RECORD); + + PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_UNCONNECTED, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->direct_on_input == PA_INVALID_INDEX || direction == PA_STREAM_RECORD, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, !(flags & ~(PA_STREAM_START_CORKED| + PA_STREAM_INTERPOLATE_TIMING| + PA_STREAM_NOT_MONOTONOUS| + PA_STREAM_AUTO_TIMING_UPDATE| + PA_STREAM_NO_REMAP_CHANNELS| + PA_STREAM_NO_REMIX_CHANNELS| + PA_STREAM_FIX_FORMAT| + PA_STREAM_FIX_RATE| + PA_STREAM_FIX_CHANNELS| + PA_STREAM_DONT_MOVE| + PA_STREAM_VARIABLE_RATE| + PA_STREAM_PEAK_DETECT| + PA_STREAM_START_MUTED| + PA_STREAM_ADJUST_LATENCY)), PA_ERR_INVALID); + + PA_CHECK_VALIDITY(s->context, s->context->version >= 12 || !(flags & PA_STREAM_VARIABLE_RATE), PA_ERR_NOTSUPPORTED); + PA_CHECK_VALIDITY(s->context, s->context->version >= 13 || !(flags & PA_STREAM_PEAK_DETECT), PA_ERR_NOTSUPPORTED); + /* Althought some of the other flags are not supported on older + * version, we don't check for them here, because it doesn't hurt + * when they are passed but actually not supported. This makes + * client development easier */ + + PA_CHECK_VALIDITY(s->context, direction == PA_STREAM_PLAYBACK || !(flags & (PA_STREAM_START_MUTED)), PA_ERR_INVALID); + PA_CHECK_VALIDITY(s->context, direction == PA_STREAM_RECORD || !(flags & (PA_STREAM_PEAK_DETECT)), PA_ERR_INVALID); + PA_CHECK_VALIDITY(s->context, !volume || volume->channels == s->sample_spec.channels, PA_ERR_INVALID); + PA_CHECK_VALIDITY(s->context, !sync_stream || (direction == PA_STREAM_PLAYBACK && sync_stream->direction == PA_STREAM_PLAYBACK), PA_ERR_INVALID); + + pa_stream_ref(s); + + s->direction = direction; + s->flags = flags; + + if (sync_stream) + s->syncid = sync_stream->syncid; + + if (attr) + s->buffer_attr = *attr; + automatic_buffer_attr(s, &s->buffer_attr, &s->sample_spec); + + if (flags & PA_STREAM_INTERPOLATE_TIMING) { + pa_usec_t x; + + if (s->smoother) + pa_smoother_free(s->smoother); + + s->smoother = pa_smoother_new(SMOOTHER_ADJUST_TIME, SMOOTHER_HISTORY_TIME, !(flags & PA_STREAM_NOT_MONOTONOUS), SMOOTHER_MIN_HISTORY); + + x = pa_rtclock_usec(); + pa_smoother_set_time_offset(s->smoother, x); + pa_smoother_pause(s->smoother, x); + } + + if (!dev) + dev = s->direction == PA_STREAM_PLAYBACK ? s->context->conf->default_sink : s->context->conf->default_source; + + t = pa_tagstruct_command( + s->context, + s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_CREATE_PLAYBACK_STREAM : PA_COMMAND_CREATE_RECORD_STREAM, + &tag); + + if (s->context->version < 13) + pa_tagstruct_puts(t, pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME)); + + pa_tagstruct_put( + t, + PA_TAG_SAMPLE_SPEC, &s->sample_spec, + PA_TAG_CHANNEL_MAP, &s->channel_map, + PA_TAG_U32, PA_INVALID_INDEX, + PA_TAG_STRING, dev, + PA_TAG_U32, s->buffer_attr.maxlength, + PA_TAG_BOOLEAN, !!(flags & PA_STREAM_START_CORKED), + PA_TAG_INVALID); + + if (s->direction == PA_STREAM_PLAYBACK) { + pa_cvolume cv; + + pa_tagstruct_put( + t, + PA_TAG_U32, s->buffer_attr.tlength, + PA_TAG_U32, s->buffer_attr.prebuf, + PA_TAG_U32, s->buffer_attr.minreq, + PA_TAG_U32, s->syncid, + PA_TAG_INVALID); + + if (!volume) + volume = pa_cvolume_reset(&cv, s->sample_spec.channels); + + pa_tagstruct_put_cvolume(t, volume); + } else + pa_tagstruct_putu32(t, s->buffer_attr.fragsize); + + if (s->context->version >= 12) { + pa_tagstruct_put( + t, + PA_TAG_BOOLEAN, flags & PA_STREAM_NO_REMAP_CHANNELS, + PA_TAG_BOOLEAN, flags & PA_STREAM_NO_REMIX_CHANNELS, + PA_TAG_BOOLEAN, flags & PA_STREAM_FIX_FORMAT, + PA_TAG_BOOLEAN, flags & PA_STREAM_FIX_RATE, + PA_TAG_BOOLEAN, flags & PA_STREAM_FIX_CHANNELS, + PA_TAG_BOOLEAN, flags & PA_STREAM_DONT_MOVE, + PA_TAG_BOOLEAN, flags & PA_STREAM_VARIABLE_RATE, + PA_TAG_INVALID); + } + + if (s->context->version >= 13) { + + if (s->direction == PA_STREAM_PLAYBACK) + pa_tagstruct_put_boolean(t, flags & PA_STREAM_START_MUTED); + else + pa_tagstruct_put_boolean(t, flags & PA_STREAM_PEAK_DETECT); + + pa_tagstruct_put( + t, + PA_TAG_BOOLEAN, flags & PA_STREAM_ADJUST_LATENCY, + PA_TAG_PROPLIST, s->proplist, + PA_TAG_INVALID); + + if (s->direction == PA_STREAM_RECORD) + pa_tagstruct_putu32(t, s->direct_on_input); + } + + pa_pstream_send_tagstruct(s->context->pstream, t); + pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_create_stream_callback, s, NULL); + + pa_stream_set_state(s, PA_STREAM_CREATING); + + pa_stream_unref(s); + return 0; +} + +int pa_stream_connect_playback( + pa_stream *s, + const char *dev, + const pa_buffer_attr *attr, + pa_stream_flags_t flags, + pa_cvolume *volume, + pa_stream *sync_stream) { + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + return create_stream(PA_STREAM_PLAYBACK, s, dev, attr, flags, volume, sync_stream); +} + +int pa_stream_connect_record( + pa_stream *s, + const char *dev, + const pa_buffer_attr *attr, + pa_stream_flags_t flags) { + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + return create_stream(PA_STREAM_RECORD, s, dev, attr, flags, NULL, NULL); +} + +int pa_stream_write( + pa_stream *s, + const void *data, + size_t length, + void (*free_cb)(void *p), + int64_t offset, + pa_seek_mode_t seek) { + + pa_memchunk chunk; + pa_seek_mode_t t_seek; + int64_t t_offset; + size_t t_length; + const void *t_data; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + pa_assert(data); + + PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->direction == PA_STREAM_PLAYBACK || s->direction == PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, seek <= PA_SEEK_RELATIVE_END, PA_ERR_INVALID); + PA_CHECK_VALIDITY(s->context, s->direction == PA_STREAM_PLAYBACK || (seek == PA_SEEK_RELATIVE && offset == 0), PA_ERR_INVALID); + + if (length <= 0) + return 0; + + t_seek = seek; + t_offset = offset; + t_length = length; + t_data = data; + + while (t_length > 0) { + + chunk.index = 0; + + if (free_cb && !pa_pstream_get_shm(s->context->pstream)) { + chunk.memblock = pa_memblock_new_user(s->context->mempool, (void*) t_data, t_length, free_cb, 1); + chunk.length = t_length; + } else { + void *d; + + chunk.length = PA_MIN(t_length, pa_mempool_block_size_max(s->context->mempool)); + chunk.memblock = pa_memblock_new(s->context->mempool, chunk.length); + + d = pa_memblock_acquire(chunk.memblock); + memcpy(d, t_data, chunk.length); + pa_memblock_release(chunk.memblock); + } + + pa_pstream_send_memblock(s->context->pstream, s->channel, t_offset, t_seek, &chunk); + + t_offset = 0; + t_seek = PA_SEEK_RELATIVE; + + t_data = (const uint8_t*) t_data + chunk.length; + t_length -= chunk.length; + + pa_memblock_unref(chunk.memblock); + } + + if (free_cb && pa_pstream_get_shm(s->context->pstream)) + free_cb((void*) data); + + if (length < s->requested_bytes) + s->requested_bytes -= length; + else + s->requested_bytes = 0; + + if (s->direction == PA_STREAM_PLAYBACK) { + + /* Update latency request correction */ + if (s->write_index_corrections[s->current_write_index_correction].valid) { + + if (seek == PA_SEEK_ABSOLUTE) { + s->write_index_corrections[s->current_write_index_correction].corrupt = FALSE; + s->write_index_corrections[s->current_write_index_correction].absolute = TRUE; + s->write_index_corrections[s->current_write_index_correction].value = offset + length; + } else if (seek == PA_SEEK_RELATIVE) { + if (!s->write_index_corrections[s->current_write_index_correction].corrupt) + s->write_index_corrections[s->current_write_index_correction].value += offset + length; + } else + s->write_index_corrections[s->current_write_index_correction].corrupt = TRUE; + } + + /* Update the write index in the already available latency data */ + if (s->timing_info_valid) { + + if (seek == PA_SEEK_ABSOLUTE) { + s->timing_info.write_index_corrupt = FALSE; + s->timing_info.write_index = offset + length; + } else if (seek == PA_SEEK_RELATIVE) { + if (!s->timing_info.write_index_corrupt) + s->timing_info.write_index += offset + length; + } else + s->timing_info.write_index_corrupt = TRUE; + } + + if (!s->timing_info_valid || s->timing_info.write_index_corrupt) + request_auto_timing_update(s, TRUE); + } + + return 0; +} + +int pa_stream_peek(pa_stream *s, const void **data, size_t *length) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + pa_assert(data); + pa_assert(length); + + PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->direction == PA_STREAM_RECORD, PA_ERR_BADSTATE); + + if (!s->peek_memchunk.memblock) { + + if (pa_memblockq_peek(s->record_memblockq, &s->peek_memchunk) < 0) { + *data = NULL; + *length = 0; + return 0; + } + + s->peek_data = pa_memblock_acquire(s->peek_memchunk.memblock); + } + + pa_assert(s->peek_data); + *data = (uint8_t*) s->peek_data + s->peek_memchunk.index; + *length = s->peek_memchunk.length; + return 0; +} + +int pa_stream_drop(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->direction == PA_STREAM_RECORD, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->peek_memchunk.memblock, PA_ERR_BADSTATE); + + pa_memblockq_drop(s->record_memblockq, s->peek_memchunk.length); + + /* Fix the simulated local read index */ + if (s->timing_info_valid && !s->timing_info.read_index_corrupt) + s->timing_info.read_index += s->peek_memchunk.length; + + pa_assert(s->peek_data); + pa_memblock_release(s->peek_memchunk.memblock); + pa_memblock_unref(s->peek_memchunk.memblock); + pa_memchunk_reset(&s->peek_memchunk); + + return 0; +} + +size_t pa_stream_writable_size(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE, (size_t) -1); + PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->direction != PA_STREAM_RECORD, PA_ERR_BADSTATE, (size_t) -1); + + return s->requested_bytes; +} + +size_t pa_stream_readable_size(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE, (size_t) -1); + PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->direction == PA_STREAM_RECORD, PA_ERR_BADSTATE, (size_t) -1); + + return pa_memblockq_get_length(s->record_memblockq); +} + +pa_operation * pa_stream_drain(pa_stream *s, pa_stream_success_cb_t cb, void *userdata) { + pa_operation *o; + pa_tagstruct *t; + uint32_t tag; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction == PA_STREAM_PLAYBACK, PA_ERR_BADSTATE); + + o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command(s->context, PA_COMMAND_DRAIN_PLAYBACK_STREAM, &tag); + pa_tagstruct_putu32(t, s->channel); + pa_pstream_send_tagstruct(s->context->pstream, t); + pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + return o; +} + +static pa_usec_t calc_time(pa_stream *s, pa_bool_t ignore_transport) { + pa_usec_t usec; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + pa_assert(s->state == PA_STREAM_READY); + pa_assert(s->direction != PA_STREAM_UPLOAD); + pa_assert(s->timing_info_valid); + pa_assert(s->direction != PA_STREAM_PLAYBACK || !s->timing_info.read_index_corrupt); + pa_assert(s->direction != PA_STREAM_RECORD || !s->timing_info.write_index_corrupt); + + if (s->direction == PA_STREAM_PLAYBACK) { + /* The last byte that was written into the output device + * had this time value associated */ + usec = pa_bytes_to_usec(s->timing_info.read_index < 0 ? 0 : (uint64_t) s->timing_info.read_index, &s->sample_spec); + + if (!s->corked && !s->suspended) { + + if (!ignore_transport) + /* Because the latency info took a little time to come + * to us, we assume that the real output time is actually + * a little ahead */ + usec += s->timing_info.transport_usec; + + /* However, the output device usually maintains a buffer + too, hence the real sample currently played is a little + back */ + if (s->timing_info.sink_usec >= usec) + usec = 0; + else + usec -= s->timing_info.sink_usec; + } + + } else if (s->direction == PA_STREAM_RECORD) { + /* The last byte written into the server side queue had + * this time value associated */ + usec = pa_bytes_to_usec(s->timing_info.write_index < 0 ? 0 : (uint64_t) s->timing_info.write_index, &s->sample_spec); + + if (!s->corked && !s->suspended) { + + if (!ignore_transport) + /* Add transport latency */ + usec += s->timing_info.transport_usec; + + /* Add latency of data in device buffer */ + usec += s->timing_info.source_usec; + + /* If this is a monitor source, we need to correct the + * time by the playback device buffer */ + if (s->timing_info.sink_usec >= usec) + usec = 0; + else + usec -= s->timing_info.sink_usec; + } + } + + return usec; +} + +static void stream_get_timing_info_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_operation *o = userdata; + struct timeval local, remote, now; + pa_timing_info *i; + pa_bool_t playing = FALSE; + uint64_t underrun_for = 0, playing_for = 0; + + pa_assert(pd); + pa_assert(o); + pa_assert(PA_REFCNT_VALUE(o) >= 1); + + if (!o->context || !o->stream) + goto finish; + + i = &o->stream->timing_info; + +/* pa_log("pre corrupt w:%u r:%u\n", !o->stream->timing_info_valid || i->write_index_corrupt,!o->stream->timing_info_valid || i->read_index_corrupt); */ + + o->stream->timing_info_valid = FALSE; + i->write_index_corrupt = FALSE; + i->read_index_corrupt = FALSE; + +/* pa_log("timing update %u\n", tag); */ + + if (command != PA_COMMAND_REPLY) { + if (pa_context_handle_error(o->context, command, t, FALSE) < 0) + goto finish; + + } else { + + if (pa_tagstruct_get_usec(t, &i->sink_usec) < 0 || + pa_tagstruct_get_usec(t, &i->source_usec) < 0 || + pa_tagstruct_get_boolean(t, &playing) < 0 || + pa_tagstruct_get_timeval(t, &local) < 0 || + pa_tagstruct_get_timeval(t, &remote) < 0 || + pa_tagstruct_gets64(t, &i->write_index) < 0 || + pa_tagstruct_gets64(t, &i->read_index) < 0) { + + pa_context_fail(o->context, PA_ERR_PROTOCOL); + goto finish; + } + + if (o->context->version >= 13 && + o->stream->direction == PA_STREAM_PLAYBACK) + if (pa_tagstruct_getu64(t, &underrun_for) < 0 || + pa_tagstruct_getu64(t, &playing_for) < 0) { + + pa_context_fail(o->context, PA_ERR_PROTOCOL); + goto finish; + } + + + if (!pa_tagstruct_eof(t)) { + pa_context_fail(o->context, PA_ERR_PROTOCOL); + goto finish; + } + + o->stream->timing_info_valid = TRUE; + i->playing = (int) playing; + i->since_underrun = playing ? playing_for : underrun_for; + + pa_gettimeofday(&now); + + /* Calculcate timestamps */ + if (pa_timeval_cmp(&local, &remote) <= 0 && pa_timeval_cmp(&remote, &now) <= 0) { + /* local and remote seem to have synchronized clocks */ + + if (o->stream->direction == PA_STREAM_PLAYBACK) + i->transport_usec = pa_timeval_diff(&remote, &local); + else + i->transport_usec = pa_timeval_diff(&now, &remote); + + i->synchronized_clocks = TRUE; + i->timestamp = remote; + } else { + /* clocks are not synchronized, let's estimate latency then */ + i->transport_usec = pa_timeval_diff(&now, &local)/2; + i->synchronized_clocks = FALSE; + i->timestamp = local; + pa_timeval_add(&i->timestamp, i->transport_usec); + } + + /* Invalidate read and write indexes if necessary */ + if (tag < o->stream->read_index_not_before) + i->read_index_corrupt = TRUE; + + if (tag < o->stream->write_index_not_before) + i->write_index_corrupt = TRUE; + + if (o->stream->direction == PA_STREAM_PLAYBACK) { + /* Write index correction */ + + int n, j; + uint32_t ctag = tag; + + /* Go through the saved correction values and add up the total correction.*/ + + for (n = 0, j = o->stream->current_write_index_correction+1; + n < PA_MAX_WRITE_INDEX_CORRECTIONS; + n++, j = (j + 1) % PA_MAX_WRITE_INDEX_CORRECTIONS) { + + /* Step over invalid data or out-of-date data */ + if (!o->stream->write_index_corrections[j].valid || + o->stream->write_index_corrections[j].tag < ctag) + continue; + + /* Make sure that everything is in order */ + ctag = o->stream->write_index_corrections[j].tag+1; + + /* Now fix the write index */ + if (o->stream->write_index_corrections[j].corrupt) { + /* A corrupting seek was made */ + i->write_index = 0; + i->write_index_corrupt = TRUE; + } else if (o->stream->write_index_corrections[j].absolute) { + /* An absolute seek was made */ + i->write_index = o->stream->write_index_corrections[j].value; + i->write_index_corrupt = FALSE; + } else if (!i->write_index_corrupt) { + /* A relative seek was made */ + i->write_index += o->stream->write_index_corrections[j].value; + } + } + } + + if (o->stream->direction == PA_STREAM_RECORD) { + /* Read index correction */ + + if (!i->read_index_corrupt) + i->read_index -= pa_memblockq_get_length(o->stream->record_memblockq); + } + +/* pa_log("post corrupt w:%u r:%u\n", i->write_index_corrupt || !o->stream->timing_info_valid, i->read_index_corrupt || !o->stream->timing_info_valid); */ + + /* Clear old correction entries */ + if (o->stream->direction == PA_STREAM_PLAYBACK) { + int n; + + for (n = 0; n < PA_MAX_WRITE_INDEX_CORRECTIONS; n++) { + if (!o->stream->write_index_corrections[n].valid) + continue; + + if (o->stream->write_index_corrections[n].tag <= tag) + o->stream->write_index_corrections[n].valid = FALSE; + } + } + + /* Update smoother */ + if (o->stream->smoother) { + pa_usec_t u, x; + + u = x = pa_rtclock_usec() - i->transport_usec; + + if (o->stream->direction == PA_STREAM_PLAYBACK && + o->context->version >= 13) { + pa_usec_t su; + + /* If we weren't playing then it will take some time + * until the audio will actually come out through the + * speakers. Since we follow that timing here, we need + * to try to fix this up */ + + su = pa_bytes_to_usec(i->since_underrun, &o->stream->sample_spec); + + if (su < i->sink_usec) + x += i->sink_usec - su; + } + + if (!i->playing) + pa_smoother_pause(o->stream->smoother, x); + + /* Update the smoother */ + if ((o->stream->direction == PA_STREAM_PLAYBACK && !i->read_index_corrupt) || + (o->stream->direction == PA_STREAM_RECORD && !i->write_index_corrupt)) + pa_smoother_put(o->stream->smoother, u, calc_time(o->stream, TRUE)); + + if (i->playing) + pa_smoother_resume(o->stream->smoother, x); + } + } + + o->stream->auto_timing_update_requested = FALSE; + + if (o->stream->latency_update_callback) + o->stream->latency_update_callback(o->stream, o->stream->latency_update_userdata); + + if (o->callback && o->stream && o->stream->state == PA_STREAM_READY) { + pa_stream_success_cb_t cb = (pa_stream_success_cb_t) o->callback; + cb(o->stream, o->stream->timing_info_valid, o->userdata); + } + +finish: + + pa_operation_done(o); + pa_operation_unref(o); +} + +pa_operation* pa_stream_update_timing_info(pa_stream *s, pa_stream_success_cb_t cb, void *userdata) { + uint32_t tag; + pa_operation *o; + pa_tagstruct *t; + struct timeval now; + int cidx = 0; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + + if (s->direction == PA_STREAM_PLAYBACK) { + /* Find a place to store the write_index correction data for this entry */ + cidx = (s->current_write_index_correction + 1) % PA_MAX_WRITE_INDEX_CORRECTIONS; + + /* Check if we could allocate a correction slot. If not, there are too many outstanding queries */ + PA_CHECK_VALIDITY_RETURN_NULL(s->context, !s->write_index_corrections[cidx].valid, PA_ERR_INTERNAL); + } + o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command( + s->context, + s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_GET_PLAYBACK_LATENCY : PA_COMMAND_GET_RECORD_LATENCY, + &tag); + pa_tagstruct_putu32(t, s->channel); + pa_tagstruct_put_timeval(t, pa_gettimeofday(&now)); + + pa_pstream_send_tagstruct(s->context->pstream, t); + pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, stream_get_timing_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + if (s->direction == PA_STREAM_PLAYBACK) { + /* Fill in initial correction data */ + + s->current_write_index_correction = cidx; + + s->write_index_corrections[cidx].valid = TRUE; + s->write_index_corrections[cidx].absolute = FALSE; + s->write_index_corrections[cidx].corrupt = FALSE; + s->write_index_corrections[cidx].tag = tag; + s->write_index_corrections[cidx].value = 0; + } + + return o; +} + +void pa_stream_disconnect_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_stream *s = userdata; + + pa_assert(pd); + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + pa_stream_ref(s); + + if (command != PA_COMMAND_REPLY) { + if (pa_context_handle_error(s->context, command, t, FALSE) < 0) + goto finish; + + pa_stream_set_state(s, PA_STREAM_FAILED); + goto finish; + } else if (!pa_tagstruct_eof(t)) { + pa_context_fail(s->context, PA_ERR_PROTOCOL); + goto finish; + } + + pa_stream_set_state(s, PA_STREAM_TERMINATED); + +finish: + pa_stream_unref(s); +} + +int pa_stream_disconnect(pa_stream *s) { + pa_tagstruct *t; + uint32_t tag; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY(s->context, s->channel_valid, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->context->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); + + pa_stream_ref(s); + + t = pa_tagstruct_command( + s->context, + s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_DELETE_PLAYBACK_STREAM : + (s->direction == PA_STREAM_RECORD ? PA_COMMAND_DELETE_RECORD_STREAM : PA_COMMAND_DELETE_UPLOAD_STREAM), + &tag); + pa_tagstruct_putu32(t, s->channel); + pa_pstream_send_tagstruct(s->context->pstream, t); + pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_disconnect_callback, s, NULL); + + pa_stream_unref(s); + return 0; +} + +void pa_stream_set_read_callback(pa_stream *s, pa_stream_request_cb_t cb, void *userdata) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED) + return; + + s->read_callback = cb; + s->read_userdata = userdata; +} + +void pa_stream_set_write_callback(pa_stream *s, pa_stream_request_cb_t cb, void *userdata) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED) + return; + + s->write_callback = cb; + s->write_userdata = userdata; +} + +void pa_stream_set_state_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED) + return; + + s->state_callback = cb; + s->state_userdata = userdata; +} + +void pa_stream_set_overflow_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED) + return; + + s->overflow_callback = cb; + s->overflow_userdata = userdata; +} + +void pa_stream_set_underflow_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED) + return; + + s->underflow_callback = cb; + s->underflow_userdata = userdata; +} + +void pa_stream_set_latency_update_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED) + return; + + s->latency_update_callback = cb; + s->latency_update_userdata = userdata; +} + +void pa_stream_set_moved_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED) + return; + + s->moved_callback = cb; + s->moved_userdata = userdata; +} + +void pa_stream_set_suspended_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED) + return; + + s->suspended_callback = cb; + s->suspended_userdata = userdata; +} + +void pa_stream_set_started_callback(pa_stream *s, pa_stream_notify_cb_t cb, void *userdata) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + if (s->state == PA_STREAM_TERMINATED || s->state == PA_STREAM_FAILED) + return; + + s->started_callback = cb; + s->started_userdata = userdata; +} + +void pa_stream_simple_ack_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_operation *o = userdata; + int success = 1; + + pa_assert(pd); + pa_assert(o); + pa_assert(PA_REFCNT_VALUE(o) >= 1); + + if (!o->context) + goto finish; + + if (command != PA_COMMAND_REPLY) { + if (pa_context_handle_error(o->context, command, t, FALSE) < 0) + goto finish; + + success = 0; + } else if (!pa_tagstruct_eof(t)) { + pa_context_fail(o->context, PA_ERR_PROTOCOL); + goto finish; + } + + if (o->callback) { + pa_stream_success_cb_t cb = (pa_stream_success_cb_t) o->callback; + cb(o->stream, success, o->userdata); + } + +finish: + pa_operation_done(o); + pa_operation_unref(o); +} + +pa_operation* pa_stream_cork(pa_stream *s, int b, pa_stream_success_cb_t cb, void *userdata) { + pa_operation *o; + pa_tagstruct *t; + uint32_t tag; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + + s->corked = b; + + o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command( + s->context, + s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_CORK_PLAYBACK_STREAM : PA_COMMAND_CORK_RECORD_STREAM, + &tag); + pa_tagstruct_putu32(t, s->channel); + pa_tagstruct_put_boolean(t, !!b); + pa_pstream_send_tagstruct(s->context->pstream, t); + pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + if (s->smoother) { + pa_usec_t x = pa_rtclock_usec(); + + if (s->timing_info_valid) + x += s->timing_info.transport_usec; + + if (s->suspended || s->corked) + pa_smoother_pause(s->smoother, x); + } + + if (s->direction == PA_STREAM_PLAYBACK) + invalidate_indexes(s, TRUE, FALSE); + + return o; +} + +static pa_operation* stream_send_simple_command(pa_stream *s, uint32_t command, pa_stream_success_cb_t cb, void *userdata) { + pa_tagstruct *t; + pa_operation *o; + uint32_t tag; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + + o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command(s->context, command, &tag); + pa_tagstruct_putu32(t, s->channel); + pa_pstream_send_tagstruct(s->context->pstream, t); + pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + return o; +} + +pa_operation* pa_stream_flush(pa_stream *s, pa_stream_success_cb_t cb, void *userdata) { + pa_operation *o; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + + if ((o = stream_send_simple_command(s, s->direction == PA_STREAM_PLAYBACK ? PA_COMMAND_FLUSH_PLAYBACK_STREAM : PA_COMMAND_FLUSH_RECORD_STREAM, cb, userdata))) { + + if (s->direction == PA_STREAM_PLAYBACK) { + if (s->write_index_corrections[s->current_write_index_correction].valid) + s->write_index_corrections[s->current_write_index_correction].corrupt = TRUE; + + if (s->timing_info_valid) + s->timing_info.write_index_corrupt = TRUE; + + if (s->buffer_attr.prebuf > 0) + invalidate_indexes(s, TRUE, FALSE); + else + request_auto_timing_update(s, TRUE); + + if (s->smoother && s->buffer_attr.prebuf > 0) { + pa_usec_t x = pa_rtclock_usec(); + + if (s->timing_info_valid) + x += s->timing_info.transport_usec; + + pa_smoother_pause(s->smoother, x); + } + + } else + invalidate_indexes(s, FALSE, TRUE); + } + + return o; +} + +pa_operation* pa_stream_prebuf(pa_stream *s, pa_stream_success_cb_t cb, void *userdata) { + pa_operation *o; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction == PA_STREAM_PLAYBACK, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->buffer_attr.prebuf > 0, PA_ERR_BADSTATE); + + if ((o = stream_send_simple_command(s, PA_COMMAND_PREBUF_PLAYBACK_STREAM, cb, userdata))) + invalidate_indexes(s, TRUE, FALSE); + + return o; +} + +pa_operation* pa_stream_trigger(pa_stream *s, pa_stream_success_cb_t cb, void *userdata) { + pa_operation *o; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction == PA_STREAM_PLAYBACK, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->buffer_attr.prebuf > 0, PA_ERR_BADSTATE); + + if ((o = stream_send_simple_command(s, PA_COMMAND_TRIGGER_PLAYBACK_STREAM, cb, userdata))) + invalidate_indexes(s, TRUE, FALSE); + + return o; +} + +pa_operation* pa_stream_set_name(pa_stream *s, const char *name, pa_stream_success_cb_t cb, void *userdata) { + pa_operation *o; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + pa_assert(name); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + + if (s->context->version >= 13) { + pa_proplist *p = pa_proplist_new(); + + pa_proplist_sets(p, PA_PROP_APPLICATION_NAME, name); + o = pa_stream_proplist_update(s, PA_UPDATE_REPLACE, p, cb, userdata); + pa_proplist_free(p); + } else { + pa_tagstruct *t; + uint32_t tag; + + o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata); + t = pa_tagstruct_command( + s->context, + s->direction == PA_STREAM_RECORD ? PA_COMMAND_SET_RECORD_STREAM_NAME : PA_COMMAND_SET_PLAYBACK_STREAM_NAME, + &tag); + pa_tagstruct_putu32(t, s->channel); + pa_tagstruct_puts(t, name); + pa_pstream_send_tagstruct(s->context->pstream, t); + pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + } + + return o; +} + +int pa_stream_get_time(pa_stream *s, pa_usec_t *r_usec) { + pa_usec_t usec; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->timing_info_valid, PA_ERR_NODATA); + PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_PLAYBACK || !s->timing_info.read_index_corrupt, PA_ERR_NODATA); + PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_RECORD || !s->timing_info.write_index_corrupt, PA_ERR_NODATA); + + if (s->smoother) + usec = pa_smoother_get(s->smoother, pa_rtclock_usec()); + else + usec = calc_time(s, FALSE); + + /* Make sure the time runs monotonically */ + if (!(s->flags & PA_STREAM_NOT_MONOTONOUS)) { + if (usec < s->previous_time) + usec = s->previous_time; + else + s->previous_time = usec; + } + + if (r_usec) + *r_usec = usec; + + return 0; +} + +static pa_usec_t time_counter_diff(pa_stream *s, pa_usec_t a, pa_usec_t b, int *negative) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + if (negative) + *negative = 0; + + if (a >= b) + return a-b; + else { + if (negative && s->direction == PA_STREAM_RECORD) { + *negative = 1; + return b-a; + } else + return 0; + } +} + +int pa_stream_get_latency(pa_stream *s, pa_usec_t *r_usec, int *negative) { + pa_usec_t t, c; + int r; + int64_t cindex; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + pa_assert(r_usec); + + PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->timing_info_valid, PA_ERR_NODATA); + PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_PLAYBACK || !s->timing_info.write_index_corrupt, PA_ERR_NODATA); + PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_RECORD || !s->timing_info.read_index_corrupt, PA_ERR_NODATA); + + if ((r = pa_stream_get_time(s, &t)) < 0) + return r; + + if (s->direction == PA_STREAM_PLAYBACK) + cindex = s->timing_info.write_index; + else + cindex = s->timing_info.read_index; + + if (cindex < 0) + cindex = 0; + + c = pa_bytes_to_usec(cindex, &s->sample_spec); + + if (s->direction == PA_STREAM_PLAYBACK) + *r_usec = time_counter_diff(s, c, t, negative); + else + *r_usec = time_counter_diff(s, t, c, negative); + + return 0; +} + +const pa_timing_info* pa_stream_get_timing_info(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->timing_info_valid, PA_ERR_BADSTATE); + + return &s->timing_info; +} + +const pa_sample_spec* pa_stream_get_sample_spec(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + return &s->sample_spec; +} + +const pa_channel_map* pa_stream_get_channel_map(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + return &s->channel_map; +} + +const pa_buffer_attr* pa_stream_get_buffer_attr(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 9, PA_ERR_NOTSUPPORTED); + + return &s->buffer_attr; +} + +static void stream_set_buffer_attr_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_operation *o = userdata; + int success = 1; + + pa_assert(pd); + pa_assert(o); + pa_assert(PA_REFCNT_VALUE(o) >= 1); + + if (!o->context) + goto finish; + + if (command != PA_COMMAND_REPLY) { + if (pa_context_handle_error(o->context, command, t, FALSE) < 0) + goto finish; + + success = 0; + } else { + + if (o->stream->direction == PA_STREAM_PLAYBACK) { + if (pa_tagstruct_getu32(t, &o->stream->buffer_attr.maxlength) < 0 || + pa_tagstruct_getu32(t, &o->stream->buffer_attr.tlength) < 0 || + pa_tagstruct_getu32(t, &o->stream->buffer_attr.prebuf) < 0 || + pa_tagstruct_getu32(t, &o->stream->buffer_attr.minreq) < 0) { + pa_context_fail(o->context, PA_ERR_PROTOCOL); + goto finish; + } + } else if (o->stream->direction == PA_STREAM_RECORD) { + if (pa_tagstruct_getu32(t, &o->stream->buffer_attr.maxlength) < 0 || + pa_tagstruct_getu32(t, &o->stream->buffer_attr.fragsize) < 0) { + pa_context_fail(o->context, PA_ERR_PROTOCOL); + goto finish; + } + } + + if (!pa_tagstruct_eof(t)) { + pa_context_fail(o->context, PA_ERR_PROTOCOL); + goto finish; + } + } + + if (o->callback) { + pa_stream_success_cb_t cb = (pa_stream_success_cb_t) o->callback; + cb(o->stream, success, o->userdata); + } + +finish: + pa_operation_done(o); + pa_operation_unref(o); +} + + +pa_operation* pa_stream_set_buffer_attr(pa_stream *s, const pa_buffer_attr *attr, pa_stream_success_cb_t cb, void *userdata) { + pa_operation *o; + pa_tagstruct *t; + uint32_t tag; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + pa_assert(attr); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED); + + o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command( + s->context, + s->direction == PA_STREAM_RECORD ? PA_COMMAND_SET_RECORD_STREAM_BUFFER_ATTR : PA_COMMAND_SET_PLAYBACK_STREAM_BUFFER_ATTR, + &tag); + pa_tagstruct_putu32(t, s->channel); + + pa_tagstruct_putu32(t, attr->maxlength); + + if (s->direction == PA_STREAM_PLAYBACK) + pa_tagstruct_put( + t, + PA_TAG_U32, attr->tlength, + PA_TAG_U32, attr->prebuf, + PA_TAG_U32, attr->minreq, + PA_TAG_INVALID); + else + pa_tagstruct_putu32(t, attr->fragsize); + + if (s->context->version >= 13) + pa_tagstruct_put_boolean(t, !!(s->flags & PA_STREAM_ADJUST_LATENCY)); + + pa_pstream_send_tagstruct(s->context->pstream, t); + pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, stream_set_buffer_attr_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + return o; +} + +uint32_t pa_stream_get_device_index(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE, PA_INVALID_INDEX); + PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE, PA_INVALID_INDEX); + PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED, PA_INVALID_INDEX); + PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->device_index != PA_INVALID_INDEX, PA_ERR_BADSTATE, PA_INVALID_INDEX); + + return s->device_index; +} + +const char *pa_stream_get_device_name(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->device_name, PA_ERR_BADSTATE); + + return s->device_name; +} + +int pa_stream_is_suspended(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED); + + return s->suspended; +} + +int pa_stream_is_corked(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + + return s->corked; +} + +static void stream_update_sample_rate_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_operation *o = userdata; + int success = 1; + + pa_assert(pd); + pa_assert(o); + pa_assert(PA_REFCNT_VALUE(o) >= 1); + + if (!o->context) + goto finish; + + if (command != PA_COMMAND_REPLY) { + if (pa_context_handle_error(o->context, command, t, FALSE) < 0) + goto finish; + + success = 0; + } else { + + if (!pa_tagstruct_eof(t)) { + pa_context_fail(o->context, PA_ERR_PROTOCOL); + goto finish; + } + } + + o->stream->sample_spec.rate = PA_PTR_TO_UINT(o->private); + pa_assert(pa_sample_spec_valid(&o->stream->sample_spec)); + + if (o->callback) { + pa_stream_success_cb_t cb = (pa_stream_success_cb_t) o->callback; + cb(o->stream, success, o->userdata); + } + +finish: + pa_operation_done(o); + pa_operation_unref(o); +} + + +pa_operation *pa_stream_update_sample_rate(pa_stream *s, uint32_t rate, pa_stream_success_cb_t cb, void *userdata) { + pa_operation *o; + pa_tagstruct *t; + uint32_t tag; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, rate > 0 && rate <= PA_RATE_MAX, PA_ERR_INVALID); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->flags & PA_STREAM_VARIABLE_RATE, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 12, PA_ERR_NOTSUPPORTED); + + o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata); + o->private = PA_UINT_TO_PTR(rate); + + t = pa_tagstruct_command( + s->context, + s->direction == PA_STREAM_RECORD ? PA_COMMAND_UPDATE_RECORD_STREAM_SAMPLE_RATE : PA_COMMAND_UPDATE_PLAYBACK_STREAM_SAMPLE_RATE, + &tag); + pa_tagstruct_putu32(t, s->channel); + pa_tagstruct_putu32(t, rate); + + pa_pstream_send_tagstruct(s->context->pstream, t); + pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, stream_update_sample_rate_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + return o; +} + +pa_operation *pa_stream_proplist_update(pa_stream *s, pa_update_mode_t mode, pa_proplist *p, pa_stream_success_cb_t cb, void *userdata) { + pa_operation *o; + pa_tagstruct *t; + uint32_t tag; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, mode == PA_UPDATE_SET || mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE, PA_ERR_INVALID); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 13, PA_ERR_NOTSUPPORTED); + + o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command( + s->context, + s->direction == PA_STREAM_RECORD ? PA_COMMAND_UPDATE_RECORD_STREAM_PROPLIST : PA_COMMAND_UPDATE_PLAYBACK_STREAM_PROPLIST, + &tag); + pa_tagstruct_putu32(t, s->channel); + pa_tagstruct_putu32(t, (uint32_t) mode); + pa_tagstruct_put_proplist(t, p); + + pa_pstream_send_tagstruct(s->context->pstream, t); + pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + /* Please note that we don't update s->proplist here, because we + * don't export that field */ + + return o; +} + +pa_operation *pa_stream_proplist_remove(pa_stream *s, const char *const keys[], pa_stream_success_cb_t cb, void *userdata) { + pa_operation *o; + pa_tagstruct *t; + uint32_t tag; + const char * const*k; + + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(s->context, keys && keys[0], PA_ERR_INVALID); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->direction != PA_STREAM_UPLOAD, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 13, PA_ERR_NOTSUPPORTED); + + o = pa_operation_new(s->context, s, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command( + s->context, + s->direction == PA_STREAM_RECORD ? PA_COMMAND_REMOVE_RECORD_STREAM_PROPLIST : PA_COMMAND_REMOVE_PLAYBACK_STREAM_PROPLIST, + &tag); + pa_tagstruct_putu32(t, s->channel); + + for (k = keys; *k; k++) + pa_tagstruct_puts(t, *k); + + pa_tagstruct_puts(t, NULL); + + pa_pstream_send_tagstruct(s->context->pstream, t); + pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + /* Please note that we don't update s->proplist here, because we + * don't export that field */ + + return o; +} + +int pa_stream_set_monitor_stream(pa_stream *s, uint32_t sink_input_idx) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY(s->context, sink_input_idx != PA_INVALID_INDEX, PA_ERR_INVALID); + PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_UNCONNECTED, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(s->context, s->context->version >= 13, PA_ERR_NOTSUPPORTED); + + s->direct_on_input = sink_input_idx; + + return 0; +} + +uint32_t pa_stream_get_monitor_stream(pa_stream *s) { + pa_assert(s); + pa_assert(PA_REFCNT_VALUE(s) >= 1); + + PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->direct_on_input != PA_INVALID_INDEX, PA_ERR_BADSTATE, PA_INVALID_INDEX); + PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->context->version >= 13, PA_ERR_NOTSUPPORTED, PA_INVALID_INDEX); + + return s->direct_on_input; +} |