From f44ba092651aa75055e109e04b4164ea92ae7fdc Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Mon, 19 Jun 2006 21:53:48 +0000 Subject: big s/polyp/pulse/g git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1033 fefdeb5f-60dc-0310-8127-8f9354f1896f --- src/polyp/stream.c | 1366 ---------------------------------------------------- 1 file changed, 1366 deletions(-) delete mode 100644 src/polyp/stream.c (limited to 'src/polyp/stream.c') diff --git a/src/polyp/stream.c b/src/polyp/stream.c deleted file mode 100644 index 8927805e..00000000 --- a/src/polyp/stream.c +++ /dev/null @@ -1,1366 +0,0 @@ -/* $Id$ */ - -/*** - This file is part of polypaudio. - - polypaudio 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. - - polypaudio 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 polypaudio; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - USA. -***/ - -#ifdef HAVE_CONFIG_H -#include -#endif - -#include -#include -#include -#include - -#include -#include -#include - -#include -#include -#include - -#include "internal.h" - -#define LATENCY_IPOL_INTERVAL_USEC (100000L) - -pa_stream *pa_stream_new(pa_context *c, const char *name, const pa_sample_spec *ss, const pa_channel_map *map) { - pa_stream *s; - int i; - - assert(c); - - PA_CHECK_VALIDITY_RETURN_NULL(c, ss && pa_sample_spec_valid(ss), PA_ERR_INVALID); - PA_CHECK_VALIDITY_RETURN_NULL(c, !map || (pa_channel_map_valid(map) && map->channels == ss->channels), PA_ERR_INVALID); - - s = pa_xnew(pa_stream, 1); - s->ref = 1; - s->context = c; - s->mainloop = c->mainloop; - - 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->direction = PA_STREAM_NODIRECTION; - s->name = pa_xstrdup(name); - s->sample_spec = *ss; - s->flags = 0; - - if (map) - s->channel_map = *map; - else - pa_channel_map_init_auto(&s->channel_map, ss->channels, PA_CHANNEL_MAP_DEFAULT); - - s->channel = 0; - s->channel_valid = 0; - s->syncid = c->csyncid++; - s->device_index = PA_INVALID_INDEX; - s->requested_bytes = 0; - s->state = PA_STREAM_UNCONNECTED; - memset(&s->buffer_attr, 0, sizeof(s->buffer_attr)); - - s->peek_memchunk.index = 0; - s->peek_memchunk.length = 0; - s->peek_memchunk.memblock = NULL; - - s->record_memblockq = NULL; - - s->previous_time = 0; - s->timing_info_valid = 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->corked = 0; - - s->cached_time_valid = 0; - - s->auto_timing_update_event = NULL; - s->auto_timing_update_requested = 0; - - /* 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_free(pa_stream *s) { - assert(s && !s->context && !s->channel_valid); - - if (s->auto_timing_update_event) { - assert(s->mainloop); - s->mainloop->time_free(s->auto_timing_update_event); - } - - if (s->peek_memchunk.memblock) - pa_memblock_unref(s->peek_memchunk.memblock); - - if (s->record_memblockq) - pa_memblockq_free(s->record_memblockq); - - pa_xfree(s->name); - pa_xfree(s); -} - -void pa_stream_unref(pa_stream *s) { - assert(s); - assert(s->ref >= 1); - - if (--(s->ref) == 0) - stream_free(s); -} - -pa_stream* pa_stream_ref(pa_stream *s) { - assert(s); - assert(s->ref >= 1); - - s->ref++; - return s; -} - -pa_stream_state_t pa_stream_get_state(pa_stream *s) { - assert(s); - assert(s->ref >= 1); - - return s->state; -} - -pa_context* pa_stream_get_context(pa_stream *s) { - assert(s); - assert(s->ref >= 1); - - return s->context; -} - -uint32_t pa_stream_get_index(pa_stream *s) { - assert(s); - assert(s->ref >= 1); - - PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE, PA_INVALID_INDEX); - - return s->device_index; -} - -void pa_stream_set_state(pa_stream *s, pa_stream_state_t st) { - assert(s); - assert(s->ref >= 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) && s->context) { - - /* Detach from context */ - pa_operation *o, *n; - - /* 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); - - PA_LLIST_REMOVE(pa_stream, s->context->streams, s); - pa_stream_unref(s); - - s->channel = 0; - s->channel_valid = 0; - - s->context = NULL; - } - - pa_stream_unref(s); -} - -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; - - assert(pd); - assert(command == PA_COMMAND_PLAYBACK_STREAM_KILLED || command == PA_COMMAND_RECORD_STREAM_KILLED); - assert(t); - assert(c); - - 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; - - pa_context_set_error(c, PA_ERR_KILLED); - pa_stream_set_state(s, PA_STREAM_FAILED); - -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; - - assert(pd); - assert(command == PA_COMMAND_REQUEST); - assert(t); - assert(c); - - 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) { - 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; - - assert(pd); - assert(command == PA_COMMAND_OVERFLOW || command == PA_COMMAND_UNDERFLOW); - assert(t); - assert(c); - - 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) { - - 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 request_auto_timing_update(pa_stream *s, int force) { - struct timeval next; - assert(s); - - 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 = 1; - } - } - - pa_gettimeofday(&next); - pa_timeval_add(&next, LATENCY_IPOL_INTERVAL_USEC); - s->mainloop->time_restart(s->auto_timing_update_event, &next); -} - -static void invalidate_indexes(pa_stream *s, int r, int w) { - assert(s); - -/* 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 = 1; - -/* 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 = 1; - -/* pa_log("read_index invalidated"); */ - } - - if ((s->direction == PA_STREAM_PLAYBACK && r) || - (s->direction == PA_STREAM_RECORD && w)) - s->cached_time_valid = 0; - - request_auto_timing_update(s, 1); -} - -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_log("time event"); */ - - pa_stream_ref(s); - request_auto_timing_update(s, 0); - pa_stream_unref(s); -} - -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; - - assert(pd); - assert(s); - assert(s->state == PA_STREAM_CREATING); - - pa_stream_ref(s); - - if (command != PA_COMMAND_REPLY) { - if (pa_context_handle_error(s->context, command, t) < 0) - goto finish; - - pa_stream_set_state(s, PA_STREAM_FAILED); - goto finish; - } - - if (pa_tagstruct_getu32(t, &s->channel) < 0 || - ((s->direction != PA_STREAM_UPLOAD) && pa_tagstruct_getu32(t, &s->device_index) < 0) || - ((s->direction != PA_STREAM_RECORD) && pa_tagstruct_getu32(t, &s->requested_bytes) < 0)) { - pa_context_fail(s->context, PA_ERR_PROTOCOL); - goto finish; - } - - if (pa_context_get_server_protocol_version(s->context) >= 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 (!pa_tagstruct_eof(t)) { - pa_context_fail(s->context, PA_ERR_PROTOCOL); - goto finish; - } - - if (s->direction == PA_STREAM_RECORD) { - assert(!s->record_memblockq); - - s->record_memblockq = pa_memblockq_new( - 0, - s->buffer_attr.maxlength, - 0, - pa_frame_size(&s->sample_spec), - 1, - 0, - NULL, - s->context->memblock_stat); - } - - s->channel_valid = 1; - pa_dynarray_put((s->direction == PA_STREAM_RECORD) ? s->context->record_streams : s->context->playback_streams, s->channel, s); - - pa_stream_set_state(s, PA_STREAM_READY); - - if (s->direction != PA_STREAM_UPLOAD && - s->flags & PA_STREAM_AUTO_TIMING_UPDATE) { - struct timeval tv; - - pa_gettimeofday(&tv); - tv.tv_usec += LATENCY_IPOL_INTERVAL_USEC; /* every 100 ms */ - - 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, 1); - } - - if (s->requested_bytes > 0 && s->ref > 1 && s->write_callback) - s->write_callback(s, s->requested_bytes, s->write_userdata); - -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; - - assert(s); - assert(s->ref >= 1); - - PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_UNCONNECTED, PA_ERR_BADSTATE); - PA_CHECK_VALIDITY(s->context, !(flags & ~((direction != PA_STREAM_UPLOAD ? - PA_STREAM_START_CORKED| - PA_STREAM_INTERPOLATE_TIMING| - PA_STREAM_NOT_MONOTONOUS| - PA_STREAM_AUTO_TIMING_UPDATE : 0))), 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; - else { - /* half a second */ - s->buffer_attr.tlength = pa_bytes_per_second(&s->sample_spec)/2; - s->buffer_attr.maxlength = (s->buffer_attr.tlength*3)/2; - s->buffer_attr.minreq = s->buffer_attr.tlength/100; - s->buffer_attr.prebuf = s->buffer_attr.tlength - s->buffer_attr.minreq; - s->buffer_attr.fragsize = s->buffer_attr.tlength/100; - } - - 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); - - pa_tagstruct_put( - t, - PA_TAG_STRING, s->name, - 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); - - 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) { - - assert(s); - assert(s->ref >= 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) { - - assert(s); - assert(s->ref >= 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; - - assert(s); - assert(s->ref >= 1); - 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; - - if (free_cb) - chunk.memblock = pa_memblock_new_user((void*) data, length, free_cb, 1, s->context->memblock_stat); - else { - chunk.memblock = pa_memblock_new(length, s->context->memblock_stat); - memcpy(chunk.memblock->data, data, length); - } - - chunk.index = 0; - chunk.length = length; - - pa_pstream_send_memblock(s->context->pstream, s->channel, offset, seek, &chunk); - pa_memblock_unref(chunk.memblock); - - 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 = 0; - s->write_index_corrections[s->current_write_index_correction].absolute = 1; - 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 = 1; - } - - /* 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 = 0; - 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 = 1; - } - - if (!s->timing_info_valid || s->timing_info.write_index_corrupt) - request_auto_timing_update(s, 1); - } - - return 0; -} - -int pa_stream_peek(pa_stream *s, const void **data, size_t *length) { - assert(s); - assert(s->ref >= 1); - assert(data); - 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; - } - } - - *data = (const char*) s->peek_memchunk.memblock->data + s->peek_memchunk.index; - *length = s->peek_memchunk.length; - return 0; -} - -int pa_stream_drop(pa_stream *s) { - assert(s); - assert(s->ref >= 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, 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_memblock_unref(s->peek_memchunk.memblock); - s->peek_memchunk.length = 0; - s->peek_memchunk.index = 0; - s->peek_memchunk.memblock = NULL; - - return 0; -} - -size_t pa_stream_writable_size(pa_stream *s) { - assert(s); - assert(s->ref >= 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) { - assert(s); - assert(s->ref >= 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; - - assert(s); - assert(s->ref >= 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 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; - - assert(pd); - assert(o); - - 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 = 0; - i->write_index_corrupt = 0; - i->read_index_corrupt = 0; - -/* pa_log("timing update %u\n", tag); */ - - if (command != PA_COMMAND_REPLY) { - if (pa_context_handle_error(o->context, command, t) < 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, &i->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_tagstruct_eof(t)) { - pa_context_fail(o->context, PA_ERR_PROTOCOL); - goto finish; - - } else { - o->stream->timing_info_valid = 1; - - 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 = 1; - 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 = 0; - 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 = 1; - - if (tag < o->stream->write_index_not_before) - i->write_index_corrupt = 1; - - 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 = 1; - } 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 = 0; - } 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); - } - - o->stream->cached_time_valid = 0; - } - - o->stream->auto_timing_update_requested = 0; -/* 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 = 0; - } - } - - 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; - - assert(s); - assert(s->ref >= 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 */ - o->stream->current_write_index_correction = cidx; - o->stream->write_index_corrections[cidx].valid = 1; - o->stream->write_index_corrections[cidx].tag = tag; - o->stream->write_index_corrections[cidx].absolute = 0; - o->stream->write_index_corrections[cidx].value = 0; - o->stream->write_index_corrections[cidx].corrupt = 0; - } - -/* pa_log("requesting update %u\n", tag); */ - - 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; - - assert(pd); - assert(s); - assert(s->ref >= 1); - - pa_stream_ref(s); - - if (command != PA_COMMAND_REPLY) { - if (pa_context_handle_error(s->context, command, t) < 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; - - assert(s); - assert(s->ref >= 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) { - assert(s); - assert(s->ref >= 1); - - 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) { - assert(s); - assert(s->ref >= 1); - - 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) { - assert(s); - assert(s->ref >= 1); - - 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) { - assert(s); - assert(s->ref >= 1); - - 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) { - assert(s); - assert(s->ref >= 1); - - 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) { - assert(s); - assert(s->ref >= 1); - - s->latency_update_callback = cb; - s->latency_update_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; - - assert(pd); - assert(o); - assert(o->ref >= 1); - - if (!o->context) - goto finish; - - if (command != PA_COMMAND_REPLY) { - if (pa_context_handle_error(o->context, command, t) < 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; - - assert(s); - assert(s->ref >= 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->direction == PA_STREAM_PLAYBACK) - invalidate_indexes(s, 1, 0); - - 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; - - assert(s); - assert(s->ref >= 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_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 = 1; - - if (s->timing_info_valid) - s->timing_info.write_index_corrupt = 1; - - if (s->buffer_attr.prebuf > 0) - invalidate_indexes(s, 1, 0); - else - request_auto_timing_update(s, 1); - } else - invalidate_indexes(s, 0, 1); - } - - return o; -} - -pa_operation* pa_stream_prebuf(pa_stream *s, pa_stream_success_cb_t cb, void *userdata) { - pa_operation *o; - - 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, 1, 0); - - return o; -} - -pa_operation* pa_stream_trigger(pa_stream *s, pa_stream_success_cb_t cb, void *userdata) { - pa_operation *o; - - 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, 1, 0); - - 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_tagstruct *t; - uint32_t tag; - - assert(s); - assert(s->ref >= 1); - 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); - - 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 = 0; - - assert(s); - assert(s->ref >= 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->cached_time_valid) - /* We alredy calculated the time value for this timing info, so let's reuse it */ - usec = s->cached_time; - else { - 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) { - /* 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) { - /* 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; - } - } - - s->cached_time = usec; - s->cached_time_valid = 1; - } - - /* Interpolate if requested */ - if (s->flags & PA_STREAM_INTERPOLATE_TIMING) { - - /* We just add the time that passed since the latency info was - * current */ - if (!s->corked) { - struct timeval now; - usec += pa_timeval_diff(pa_gettimeofday(&now), &s->timing_info.timestamp); - } - } - - /* 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) { - assert(s); - assert(s->ref >= 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; - - assert(s); - assert(s->ref >= 1); - 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) { - assert(s); - assert(s->ref >= 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) { - assert(s); - assert(s->ref >= 1); - - return &s->sample_spec; -} - -const pa_channel_map* pa_stream_get_channel_map(pa_stream *s) { - assert(s); - assert(s->ref >= 1); - - return &s->channel_map; -} - -const pa_buffer_attr* pa_stream_get_buffer_attr(pa_stream *s) { - assert(s); - assert(s->ref >= 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, - pa_context_get_server_protocol_version(s->context) >= 9, PA_ERR_NODATA); - - return &s->buffer_attr; -} -- cgit