From 14a9b80afbb0bddc216462b72156f14e032e1b5e Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Wed, 21 Nov 2007 01:30:40 +0000 Subject: - Check process name when dealing with PID files - Add new PA_STREAM_FIX_CHANNELS, FIX_RATE, FIX_FORMAT, DONT_MOVE, VARIABLE_RATES to pa_sream_flags_t adn implement it - Expose those flags in pacat - Add notifications about device suspend/resume to the protocol and expose them in libpulse - Allow changing of buffer_attr during playback - allow disabling for remixing globally - hookup polkit support git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@2067 fefdeb5f-60dc-0310-8127-8f9354f1896f --- src/pulse/stream.c | 436 +++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 424 insertions(+), 12 deletions(-) (limited to 'src/pulse/stream.c') diff --git a/src/pulse/stream.c b/src/pulse/stream.c index 47906a5c..92420825 100644 --- a/src/pulse/stream.c +++ b/src/pulse/stream.c @@ -51,6 +51,7 @@ pa_stream *pa_stream_new(pa_context *c, const char *name, const pa_sample_spec * 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); s = pa_xnew(pa_stream, 1); @@ -58,6 +59,8 @@ pa_stream *pa_stream_new(pa_context *c, const char *name, const pa_sample_spec * s->context = c; s->mainloop = c->mainloop; + s->buffer_attr_not_ready = s->timing_info_not_ready = FALSE; + s->read_callback = NULL; s->read_userdata = NULL; s->write_callback = NULL; @@ -70,6 +73,10 @@ pa_stream *pa_stream_new(pa_context *c, const char *name, const pa_sample_spec * 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->direction = PA_STREAM_NODIRECTION; s->name = pa_xstrdup(name); @@ -84,11 +91,17 @@ pa_stream *pa_stream_new(pa_context *c, const char *name, const pa_sample_spec * s->channel = 0; s->channel_valid = 0; s->syncid = c->csyncid++; - s->device_index = PA_INVALID_INDEX; + s->stream_index = PA_INVALID_INDEX; s->requested_bytes = 0; s->state = PA_STREAM_UNCONNECTED; + + s->manual_buffer_attr = FALSE; memset(&s->buffer_attr, 0, sizeof(s->buffer_attr)); + s->device_index = PA_INVALID_INDEX; + s->device_name = NULL; + s->suspended = FALSE; + s->peek_memchunk.index = 0; s->peek_memchunk.length = 0; s->peek_memchunk.memblock = NULL; @@ -139,6 +152,7 @@ static void stream_free(pa_stream *s) { pa_memblockq_free(s->record_memblockq); pa_xfree(s->name); + pa_xfree(s->device_name); pa_xfree(s); } @@ -178,7 +192,7 @@ uint32_t pa_stream_get_index(pa_stream *s) { PA_CHECK_VALIDITY_RETURN_ANY(s->context, s->state == PA_STREAM_READY, PA_ERR_BADSTATE, PA_INVALID_INDEX); - return s->device_index; + return s->stream_index; } void pa_stream_set_state(pa_stream *s, pa_stream_state_t st) { @@ -262,6 +276,95 @@ 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; + int suspended; + uint32_t di; + + 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_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; + + pa_xfree(s->device_name); + s->device_name = pa_xstrdup(dn); + s->device_index = di; + + s->suspended = suspended; + + 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; + int 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; + + s->suspended = suspended; + + if (s->suspended_callback) + s->suspended_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; @@ -412,6 +515,9 @@ static void create_stream_complete(pa_stream *s) { pa_assert(PA_REFCNT_VALUE(s) >= 1); pa_assert(s->state == PA_STREAM_CREATING); + if (s->buffer_attr_not_ready || s->timing_info_not_ready) + return; + pa_stream_set_state(s, PA_STREAM_READY); if (s->requested_bytes > 0 && s->write_callback) @@ -426,6 +532,17 @@ static void create_stream_complete(pa_stream *s) { } } +static void automatic_buffer_attr(pa_buffer_attr *attr, pa_sample_spec *ss) { + pa_assert(attr); + pa_assert(ss); + + attr->tlength = pa_bytes_per_second(ss)/2; + attr->maxlength = (attr->tlength*3)/2; + attr->minreq = attr->tlength/50; + attr->prebuf = attr->tlength - attr->minreq; + attr->fragsize = attr->tlength/50; +} + 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; @@ -445,13 +562,13 @@ void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED } 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_UPLOAD) && pa_tagstruct_getu32(t, &s->stream_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->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 || @@ -469,6 +586,58 @@ void pa_create_stream_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED } } + if (s->context->version >= 12) { + pa_sample_spec ss; + pa_channel_map cm; + const char *dn = NULL; + int 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; + + if (!s->manual_buffer_attr && pa_bytes_per_second(&ss) != pa_bytes_per_second(&s->sample_spec)) { + pa_buffer_attr attr; + pa_operation *o; + + automatic_buffer_attr(&attr, &ss); + + /* If we need to update the buffer metrics, we wait for + * the the OK for that call before we go to + * PA_STREAM_READY */ + + s->state = PA_STREAM_READY; + pa_assert_se(o = pa_stream_set_buffer_attr(s, &attr, NULL, NULL)); + pa_operation_unref(o); + s->state = PA_STREAM_CREATING; + + s->buffer_attr_not_ready = TRUE; + } + + s->channel_map = cm; + s->sample_spec = ss; + } + if (!pa_tagstruct_eof(t)) { pa_context_fail(s->context, PA_ERR_PROTOCOL); goto finish; @@ -491,15 +660,19 @@ 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); if (s->direction != PA_STREAM_UPLOAD && s->flags & PA_STREAM_AUTO_TIMING_UPDATE) { + /* If automatic timing updates are active, we wait for the * first timing update before going to PA_STREAM_READY * state */ + s->state = PA_STREAM_READY; request_auto_timing_update(s, 1); s->state = PA_STREAM_CREATING; - } else - create_stream_complete(s); + s->timing_info_not_ready = TRUE; + } + + create_stream_complete(s); finish: pa_stream_unref(s); @@ -525,7 +698,13 @@ static int create_stream( PA_STREAM_START_CORKED| PA_STREAM_INTERPOLATE_TIMING| PA_STREAM_NOT_MONOTONOUS| - PA_STREAM_AUTO_TIMING_UPDATE : 0))), PA_ERR_INVALID); + 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 : 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); @@ -537,15 +716,17 @@ static int create_stream( if (sync_stream) s->syncid = sync_stream->syncid; - if (attr) + if (attr) { s->buffer_attr = *attr; - else { + s->manual_buffer_attr = TRUE; + } else { /* half a second, with minimum request of 10 ms */ 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/50; s->buffer_attr.prebuf = s->buffer_attr.tlength - s->buffer_attr.minreq; s->buffer_attr.fragsize = s->buffer_attr.tlength/50; + s->manual_buffer_attr = FALSE; } if (!dev) @@ -585,6 +766,19 @@ static int create_stream( } else pa_tagstruct_putu32(t, s->buffer_attr.fragsize); + if (s->context->version >= 12 && s->direction != PA_STREAM_UPLOAD) { + 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); + } + pa_pstream_send_tagstruct(s->context->pstream, t); pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_create_stream_callback, s, NULL); @@ -921,8 +1115,10 @@ static void stream_get_timing_info_callback(pa_pdispatch *pd, uint32_t command, } /* First, let's complete the initialization, if necessary. */ - if (o->stream->state == PA_STREAM_CREATING) + if (o->stream->state == PA_STREAM_CREATING) { + o->stream->timing_info_not_ready = FALSE; create_stream_complete(o->stream); + } if (o->stream->latency_update_callback) o->stream->latency_update_callback(o->stream, o->stream->latency_update_userdata); @@ -1084,6 +1280,22 @@ void pa_stream_set_latency_update_callback(pa_stream *s, pa_stream_notify_cb_t c 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); + + 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); + + s->suspended_callback = cb; + s->suspended_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; @@ -1420,8 +1632,208 @@ const pa_buffer_attr* pa_stream_get_buffer_attr(pa_stream *s) { 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); + PA_CHECK_VALIDITY_RETURN_NULL(s->context, s->context->version >= 9, PA_ERR_NODATA); 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) < 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; + } + + o->stream->manual_buffer_attr = TRUE; + } + + if (o->stream->state == PA_STREAM_CREATING) { + o->stream->buffer_attr_not_ready = FALSE; + create_stream_complete(o->stream); + } + + 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); + + 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; +} + +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) < 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; + +} -- cgit