diff options
Diffstat (limited to 'src/pulse/stream.c')
| -rw-r--r-- | src/pulse/stream.c | 238 |
1 files changed, 119 insertions, 119 deletions
diff --git a/src/pulse/stream.c b/src/pulse/stream.c index 180cd096..009eb3cf 100644 --- a/src/pulse/stream.c +++ b/src/pulse/stream.c @@ -2,17 +2,17 @@ /*** This file is part of PulseAudio. - + 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 @@ -43,7 +43,7 @@ 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); @@ -76,7 +76,7 @@ pa_stream *pa_stream_new(pa_context *c, const char *name, const pa_sample_spec * 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++; @@ -99,11 +99,11 @@ pa_stream *pa_stream_new(pa_context *c, const char *name, const pa_sample_spec * 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; @@ -143,7 +143,7 @@ void pa_stream_unref(pa_stream *s) { pa_stream* pa_stream_ref(pa_stream *s) { assert(s); assert(s->ref >= 1); - + s->ref++; return s; } @@ -151,14 +151,14 @@ pa_stream* pa_stream_ref(pa_stream *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; } @@ -167,17 +167,17 @@ uint32_t pa_stream_get_index(pa_stream *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; @@ -192,24 +192,24 @@ void pa_stream_set_state(pa_stream *s, pa_stream_state_t st) { /* 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; } @@ -220,20 +220,20 @@ void pa_command_stream_killed(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED 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; @@ -248,27 +248,27 @@ void pa_command_request(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32 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); } @@ -288,13 +288,13 @@ void pa_command_overflow_or_underflow(pa_pdispatch *pd, uint32_t command, PA_GCC 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; @@ -319,11 +319,11 @@ static void request_auto_timing_update(pa_stream *s, int force) { 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))) { @@ -341,32 +341,32 @@ 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); } @@ -382,17 +382,17 @@ static void auto_timing_update_callback(PA_GCC_UNUSED pa_mainloop_api *m, PA_GCC 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; } @@ -429,9 +429,9 @@ void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED if (s->direction == PA_STREAM_RECORD) { assert(!s->record_memblockq); - + s->record_memblockq = pa_memblockq_new( - 0, + 0, s->buffer_attr.maxlength, 0, pa_frame_size(&s->sample_spec), @@ -444,7 +444,7 @@ void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED 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; @@ -473,13 +473,13 @@ static int create_stream( 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| @@ -493,10 +493,10 @@ static int create_stream( s->direction = direction; s->flags = flags; - + if (sync_stream) s->syncid = sync_stream->syncid; - + if (attr) s->buffer_attr = *attr; else { @@ -515,7 +515,7 @@ static int create_stream( 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, @@ -526,7 +526,7 @@ static int create_stream( 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; @@ -540,7 +540,7 @@ static int create_stream( 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); @@ -549,7 +549,7 @@ static int create_stream( 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; } @@ -561,10 +561,10 @@ int pa_stream_connect_playback( 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); } @@ -573,7 +573,7 @@ int pa_stream_connect_record( const char *dev, const pa_buffer_attr *attr, pa_stream_flags_t flags) { - + assert(s); assert(s->ref >= 1); @@ -587,9 +587,9 @@ int pa_stream_write( void (*free_cb)(void *p), int64_t offset, pa_seek_mode_t seek) { - + pa_memchunk chunk; - + assert(s); assert(s->ref >= 1); assert(data); @@ -602,29 +602,29 @@ int pa_stream_write( if (length <= 0) return 0; - if (free_cb) + if (free_cb) chunk.memblock = pa_memblock_new_user(s->context->mempool, (void*) data, length, free_cb, 1); else { chunk.memblock = pa_memblock_new(s->context->mempool, length); 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; @@ -635,10 +635,10 @@ int pa_stream_write( } 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; @@ -652,7 +652,7 @@ int pa_stream_write( if (!s->timing_info_valid || s->timing_info.write_index_corrupt) request_auto_timing_update(s, 1); } - + return 0; } @@ -664,7 +664,7 @@ int pa_stream_peek(pa_stream *s, const void **data, size_t *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) { @@ -686,13 +686,13 @@ int pa_stream_drop(pa_stream *s) { 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; @@ -707,7 +707,7 @@ size_t pa_stream_writable_size(pa_stream *s) { 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; } @@ -725,7 +725,7 @@ pa_operation * pa_stream_drain(pa_stream *s, pa_stream_success_cb_t cb, void *us pa_operation *o; pa_tagstruct *t; uint32_t tag; - + assert(s); assert(s->ref >= 1); @@ -746,7 +746,7 @@ static void stream_get_timing_info_callback(pa_pdispatch *pd, uint32_t command, pa_operation *o = userdata; struct timeval local, remote, now; pa_timing_info *i; - + assert(pd); assert(o); @@ -756,7 +756,7 @@ static void stream_get_timing_info_callback(pa_pdispatch *pd, uint32_t command, 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; @@ -777,21 +777,21 @@ static void stream_get_timing_info_callback(pa_pdispatch *pd, uint32_t command, !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 { @@ -816,7 +816,7 @@ static void stream_get_timing_info_callback(pa_pdispatch *pd, uint32_t command, 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) { @@ -851,21 +851,21 @@ static void stream_get_timing_info_callback(pa_pdispatch *pd, uint32_t command, 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; } @@ -873,12 +873,12 @@ static void stream_get_timing_info_callback(pa_pdispatch *pd, uint32_t command, 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); @@ -891,29 +891,29 @@ pa_operation* pa_stream_update_timing_info(pa_stream *s, pa_stream_success_cb_t 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); @@ -926,15 +926,15 @@ pa_operation* pa_stream_update_timing_info(pa_stream *s, pa_stream_success_cb_t 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); @@ -961,7 +961,7 @@ finish: int pa_stream_disconnect(pa_stream *s) { pa_tagstruct *t; uint32_t tag; - + assert(s); assert(s->ref >= 1); @@ -1010,7 +1010,7 @@ void pa_stream_set_state_callback(pa_stream *s, pa_stream_notify_cb_t cb, void * 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; } @@ -1018,7 +1018,7 @@ void pa_stream_set_overflow_callback(pa_stream *s, pa_stream_notify_cb_t cb, voi 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; } @@ -1026,7 +1026,7 @@ void pa_stream_set_underflow_callback(pa_stream *s, pa_stream_notify_cb_t cb, vo 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; } @@ -1034,14 +1034,14 @@ void pa_stream_set_latency_update_callback(pa_stream *s, pa_stream_notify_cb_t c 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; @@ -1066,15 +1066,15 @@ pa_operation* pa_stream_cork(pa_stream *s, int b, pa_stream_success_cb_t cb, voi 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( @@ -1096,12 +1096,12 @@ static pa_operation* stream_send_simple_command(pa_stream *s, uint32_t command, 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); @@ -1114,26 +1114,26 @@ static pa_operation* stream_send_simple_command(pa_stream *s, uint32_t command, 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) + 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; } @@ -1151,13 +1151,13 @@ pa_operation* pa_stream_prebuf(pa_stream *s, pa_stream_success_cb_t cb, void *us 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; } @@ -1165,7 +1165,7 @@ pa_operation* pa_stream_set_name(pa_stream *s, const char *name, pa_stream_succe pa_operation *o; pa_tagstruct *t; uint32_t tag; - + assert(s); assert(s->ref >= 1); assert(name); @@ -1213,7 +1213,7 @@ int pa_stream_get_time(pa_stream *s, pa_usec_t *r_usec) { * 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 */ @@ -1222,7 +1222,7 @@ int pa_stream_get_time(pa_stream *s, pa_usec_t *r_usec) { 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 */ @@ -1231,10 +1231,10 @@ int pa_stream_get_time(pa_stream *s, pa_usec_t *r_usec) { 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) @@ -1269,18 +1269,18 @@ int pa_stream_get_time(pa_stream *s, pa_usec_t *r_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) + if (a >= b) return a-b; else { if (negative && s->direction == PA_STREAM_RECORD) { @@ -1305,7 +1305,7 @@ int pa_stream_get_latency(pa_stream *s, pa_usec_t *r_usec, int *negative) { 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; @@ -1316,7 +1316,7 @@ int pa_stream_get_latency(pa_stream *s, pa_usec_t *r_usec, int *negative) { if (cindex < 0) cindex = 0; - + c = pa_bytes_to_usec(cindex, &s->sample_spec); if (s->direction == PA_STREAM_PLAYBACK) |