static void gst_pulsesrc_destroy_context (GstPulseSrc * pulsesrc) { gst_pulsesrc_destroy_stream (pulsesrc); if (pulsesrc->context) { pa_context_disconnect (pulsesrc->context); pa_context_unref (pulsesrc->context); pulsesrc->context = NULL; } }
static gboolean gst_pulsesrc_unprepare (GstAudioSrc * asrc) { GstPulseSrc *pulsesrc = GST_PULSESRC_CAST (asrc); pa_threaded_mainloop_lock (pulsesrc->mainloop); gst_pulsesrc_destroy_stream (pulsesrc); pa_threaded_mainloop_unlock (pulsesrc->mainloop); pulsesrc->read_buffer = NULL; pulsesrc->read_buffer_length = 0; return TRUE; }
static void gst_pulsesrc_destroy_context (GstPulseSrc * pulsesrc) { gst_pulsesrc_destroy_stream (pulsesrc); if (pulsesrc->context) { pa_context_disconnect (pulsesrc->context); /* Make sure we don't get any further callbacks */ pa_context_set_state_callback (pulsesrc->context, NULL, NULL); pa_context_set_subscribe_callback (pulsesrc->context, NULL, NULL); pa_context_unref (pulsesrc->context); pulsesrc->context = NULL; } }
static gboolean gst_pulsesrc_prepare (GstAudioSrc * asrc, GstRingBufferSpec * spec) { pa_buffer_attr wanted; const pa_buffer_attr *actual; GstPulseSrc *pulsesrc = GST_PULSESRC_CAST (asrc); pa_threaded_mainloop_lock (pulsesrc->mainloop); wanted.maxlength = -1; wanted.tlength = -1; wanted.prebuf = 0; wanted.minreq = -1; wanted.fragsize = spec->segsize; GST_INFO_OBJECT (pulsesrc, "maxlength: %d", wanted.maxlength); GST_INFO_OBJECT (pulsesrc, "tlength: %d", wanted.tlength); GST_INFO_OBJECT (pulsesrc, "prebuf: %d", wanted.prebuf); GST_INFO_OBJECT (pulsesrc, "minreq: %d", wanted.minreq); GST_INFO_OBJECT (pulsesrc, "fragsize: %d", wanted.fragsize); if (pa_stream_connect_record (pulsesrc->stream, pulsesrc->device, &wanted, PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE | PA_STREAM_NOT_MONOTONOUS | #ifdef HAVE_PULSE_0_9_11 PA_STREAM_ADJUST_LATENCY | #endif PA_STREAM_START_CORKED) < 0) { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, FAILED, ("Failed to connect stream: %s", pa_strerror (pa_context_errno (pulsesrc->context))), (NULL)); goto unlock_and_fail; } pulsesrc->corked = TRUE; for (;;) { pa_stream_state_t state; state = pa_stream_get_state (pulsesrc->stream); if (!PA_STREAM_IS_GOOD (state)) { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, FAILED, ("Failed to connect stream: %s", pa_strerror (pa_context_errno (pulsesrc->context))), (NULL)); goto unlock_and_fail; } if (state == PA_STREAM_READY) break; /* Wait until the stream is ready */ pa_threaded_mainloop_wait (pulsesrc->mainloop); } /* get the actual buffering properties now */ actual = pa_stream_get_buffer_attr (pulsesrc->stream); GST_INFO_OBJECT (pulsesrc, "maxlength: %d", actual->maxlength); GST_INFO_OBJECT (pulsesrc, "tlength: %d (wanted: %d)", actual->tlength, wanted.tlength); GST_INFO_OBJECT (pulsesrc, "prebuf: %d", actual->prebuf); GST_INFO_OBJECT (pulsesrc, "minreq: %d (wanted %d)", actual->minreq, wanted.minreq); GST_INFO_OBJECT (pulsesrc, "fragsize: %d (wanted %d)", actual->fragsize, wanted.fragsize); if (actual->fragsize >= wanted.fragsize) { spec->segsize = actual->fragsize; } else { spec->segsize = actual->fragsize * (wanted.fragsize / actual->fragsize); } spec->segtotal = actual->maxlength / spec->segsize; pa_threaded_mainloop_unlock (pulsesrc->mainloop); return TRUE; unlock_and_fail: { gst_pulsesrc_destroy_stream (pulsesrc); pa_threaded_mainloop_unlock (pulsesrc->mainloop); return FALSE; } }
static gboolean gst_pulsesrc_create_stream (GstPulseSrc * pulsesrc, GstCaps * caps) { pa_channel_map channel_map; GstStructure *s; gboolean need_channel_layout = FALSE; GstRingBufferSpec spec; const gchar *name; memset (&spec, 0, sizeof (GstRingBufferSpec)); spec.latency_time = GST_SECOND; if (!gst_ring_buffer_parse_caps (&spec, caps)) { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, SETTINGS, ("Can't parse caps."), (NULL)); goto fail; } /* Keep the refcount of the caps at 1 to make them writable */ gst_caps_unref (spec.caps); if (!gst_pulse_fill_sample_spec (&spec, &pulsesrc->sample_spec)) { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, SETTINGS, ("Invalid sample specification."), (NULL)); goto fail; } pa_threaded_mainloop_lock (pulsesrc->mainloop); if (!pulsesrc->context) { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, FAILED, ("Bad context"), (NULL)); goto unlock_and_fail; } s = gst_caps_get_structure (caps, 0); if (!gst_structure_has_field (s, "channel-layout") || !gst_pulse_gst_to_channel_map (&channel_map, &spec)) { if (spec.channels == 1) pa_channel_map_init_mono (&channel_map); else if (spec.channels == 2) pa_channel_map_init_stereo (&channel_map); else need_channel_layout = TRUE; } name = "Record Stream"; if (pulsesrc->proplist) { if (!(pulsesrc->stream = pa_stream_new_with_proplist (pulsesrc->context, name, &pulsesrc->sample_spec, (need_channel_layout) ? NULL : &channel_map, pulsesrc->proplist))) { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, FAILED, ("Failed to create stream: %s", pa_strerror (pa_context_errno (pulsesrc->context))), (NULL)); goto unlock_and_fail; } } else if (!(pulsesrc->stream = pa_stream_new (pulsesrc->context, name, &pulsesrc->sample_spec, (need_channel_layout) ? NULL : &channel_map))) { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, FAILED, ("Failed to create stream: %s", pa_strerror (pa_context_errno (pulsesrc->context))), (NULL)); goto unlock_and_fail; } if (need_channel_layout) { const pa_channel_map *m = pa_stream_get_channel_map (pulsesrc->stream); gst_pulse_channel_map_to_gst (m, &spec); caps = spec.caps; } GST_DEBUG_OBJECT (pulsesrc, "Caps are %" GST_PTR_FORMAT, caps); pa_stream_set_state_callback (pulsesrc->stream, gst_pulsesrc_stream_state_cb, pulsesrc); pa_stream_set_read_callback (pulsesrc->stream, gst_pulsesrc_stream_request_cb, pulsesrc); pa_stream_set_underflow_callback (pulsesrc->stream, gst_pulsesrc_stream_underflow_cb, pulsesrc); pa_stream_set_overflow_callback (pulsesrc->stream, gst_pulsesrc_stream_overflow_cb, pulsesrc); pa_stream_set_latency_update_callback (pulsesrc->stream, gst_pulsesrc_stream_latency_update_cb, pulsesrc); pa_threaded_mainloop_unlock (pulsesrc->mainloop); return TRUE; unlock_and_fail: gst_pulsesrc_destroy_stream (pulsesrc); pa_threaded_mainloop_unlock (pulsesrc->mainloop); fail: return FALSE; }
static gboolean gst_pulsesrc_prepare (GstAudioSrc * asrc, GstAudioRingBufferSpec * spec) { pa_buffer_attr wanted; const pa_buffer_attr *actual; GstPulseSrc *pulsesrc = GST_PULSESRC_CAST (asrc); pa_stream_flags_t flags; pa_operation *o; GstAudioClock *clock; pa_threaded_mainloop_lock (pulsesrc->mainloop); { GstAudioRingBufferSpec s = *spec; const pa_channel_map *m; m = pa_stream_get_channel_map (pulsesrc->stream); gst_pulse_channel_map_to_gst (m, &s); gst_audio_ring_buffer_set_channel_positions (GST_AUDIO_BASE_SRC (pulsesrc)->ringbuffer, s.info.position); } /* enable event notifications */ GST_LOG_OBJECT (pulsesrc, "subscribing to context events"); if (!(o = pa_context_subscribe (pulsesrc->context, PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT, NULL, NULL))) { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, FAILED, ("pa_context_subscribe() failed: %s", pa_strerror (pa_context_errno (pulsesrc->context))), (NULL)); goto unlock_and_fail; } pa_operation_unref (o); wanted.maxlength = -1; wanted.tlength = -1; wanted.prebuf = 0; wanted.minreq = -1; wanted.fragsize = spec->segsize; GST_INFO_OBJECT (pulsesrc, "maxlength: %d", wanted.maxlength); GST_INFO_OBJECT (pulsesrc, "tlength: %d", wanted.tlength); GST_INFO_OBJECT (pulsesrc, "prebuf: %d", wanted.prebuf); GST_INFO_OBJECT (pulsesrc, "minreq: %d", wanted.minreq); GST_INFO_OBJECT (pulsesrc, "fragsize: %d", wanted.fragsize); flags = PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE | PA_STREAM_NOT_MONOTONIC | PA_STREAM_ADJUST_LATENCY | PA_STREAM_START_CORKED; if (pulsesrc->mute_set && pulsesrc->mute) flags |= PA_STREAM_START_MUTED; if (pa_stream_connect_record (pulsesrc->stream, pulsesrc->device, &wanted, flags) < 0) { goto connect_failed; } /* our clock will now start from 0 again */ clock = GST_AUDIO_CLOCK (GST_AUDIO_BASE_SRC (pulsesrc)->clock); gst_audio_clock_reset (clock, 0); pulsesrc->corked = TRUE; for (;;) { pa_stream_state_t state; state = pa_stream_get_state (pulsesrc->stream); if (!PA_STREAM_IS_GOOD (state)) goto stream_is_bad; if (state == PA_STREAM_READY) break; /* Wait until the stream is ready */ pa_threaded_mainloop_wait (pulsesrc->mainloop); } pulsesrc->stream_connected = TRUE; /* store the source output index so it can be accessed via a property */ pulsesrc->source_output_idx = pa_stream_get_index (pulsesrc->stream); g_object_notify (G_OBJECT (pulsesrc), "source-output-index"); if (pulsesrc->volume_set) { gst_pulsesrc_set_stream_volume (pulsesrc, pulsesrc->volume); pulsesrc->volume_set = FALSE; } /* get the actual buffering properties now */ actual = pa_stream_get_buffer_attr (pulsesrc->stream); GST_INFO_OBJECT (pulsesrc, "maxlength: %d", actual->maxlength); GST_INFO_OBJECT (pulsesrc, "tlength: %d (wanted: %d)", actual->tlength, wanted.tlength); GST_INFO_OBJECT (pulsesrc, "prebuf: %d", actual->prebuf); GST_INFO_OBJECT (pulsesrc, "minreq: %d (wanted %d)", actual->minreq, wanted.minreq); GST_INFO_OBJECT (pulsesrc, "fragsize: %d (wanted %d)", actual->fragsize, wanted.fragsize); if (actual->fragsize >= wanted.fragsize) { spec->segsize = actual->fragsize; } else { spec->segsize = actual->fragsize * (wanted.fragsize / actual->fragsize); } spec->segtotal = actual->maxlength / spec->segsize; if (!pulsesrc->paused) { GST_DEBUG_OBJECT (pulsesrc, "uncorking because we are playing"); gst_pulsesrc_set_corked (pulsesrc, FALSE, FALSE); } pa_threaded_mainloop_unlock (pulsesrc->mainloop); return TRUE; /* ERRORS */ connect_failed: { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, FAILED, ("Failed to connect stream: %s", pa_strerror (pa_context_errno (pulsesrc->context))), (NULL)); goto unlock_and_fail; } stream_is_bad: { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, FAILED, ("Failed to connect stream: %s", pa_strerror (pa_context_errno (pulsesrc->context))), (NULL)); goto unlock_and_fail; } unlock_and_fail: { gst_pulsesrc_destroy_stream (pulsesrc); pa_threaded_mainloop_unlock (pulsesrc->mainloop); return FALSE; } }
static gboolean gst_pulsesrc_create_stream (GstPulseSrc * pulsesrc, GstCaps ** caps) { pa_channel_map channel_map; const pa_channel_map *m; GstStructure *s; gboolean need_channel_layout = FALSE; GstAudioRingBufferSpec spec; const gchar *name; s = gst_caps_get_structure (*caps, 0); gst_structure_get_int (s, "channels", &spec.info.channels); if (!gst_structure_has_field (s, "channel-mask")) { if (spec.info.channels == 1) { pa_channel_map_init_mono (&channel_map); } else if (spec.info.channels == 2) { gst_structure_set (s, "channel-mask", GST_TYPE_BITMASK, GST_AUDIO_CHANNEL_POSITION_MASK (FRONT_LEFT) | GST_AUDIO_CHANNEL_POSITION_MASK (FRONT_RIGHT), NULL); pa_channel_map_init_stereo (&channel_map); } else { need_channel_layout = TRUE; gst_structure_set (s, "channel-mask", GST_TYPE_BITMASK, G_GUINT64_CONSTANT (0), NULL); } } memset (&spec, 0, sizeof (GstAudioRingBufferSpec)); spec.latency_time = GST_SECOND; if (!gst_audio_ring_buffer_parse_caps (&spec, *caps)) goto invalid_caps; /* Keep the refcount of the caps at 1 to make them writable */ gst_caps_unref (spec.caps); if (!need_channel_layout && !gst_pulse_gst_to_channel_map (&channel_map, &spec)) { need_channel_layout = TRUE; gst_structure_set (s, "channel-mask", GST_TYPE_BITMASK, G_GUINT64_CONSTANT (0), NULL); memset (spec.info.position, 0xff, sizeof (spec.info.position)); } if (!gst_pulse_fill_sample_spec (&spec, &pulsesrc->sample_spec)) goto invalid_spec; pa_threaded_mainloop_lock (pulsesrc->mainloop); if (!pulsesrc->context) goto bad_context; name = "Record Stream"; if (pulsesrc->proplist) { if (!(pulsesrc->stream = pa_stream_new_with_proplist (pulsesrc->context, name, &pulsesrc->sample_spec, (need_channel_layout) ? NULL : &channel_map, pulsesrc->proplist))) goto create_failed; } else if (!(pulsesrc->stream = pa_stream_new (pulsesrc->context, name, &pulsesrc->sample_spec, (need_channel_layout) ? NULL : &channel_map))) goto create_failed; m = pa_stream_get_channel_map (pulsesrc->stream); gst_pulse_channel_map_to_gst (m, &spec); gst_audio_channel_positions_to_valid_order (spec.info.position, spec.info.channels); gst_caps_unref (*caps); *caps = gst_audio_info_to_caps (&spec.info); GST_DEBUG_OBJECT (pulsesrc, "Caps are %" GST_PTR_FORMAT, *caps); pa_stream_set_state_callback (pulsesrc->stream, gst_pulsesrc_stream_state_cb, pulsesrc); pa_stream_set_read_callback (pulsesrc->stream, gst_pulsesrc_stream_request_cb, pulsesrc); pa_stream_set_underflow_callback (pulsesrc->stream, gst_pulsesrc_stream_underflow_cb, pulsesrc); pa_stream_set_overflow_callback (pulsesrc->stream, gst_pulsesrc_stream_overflow_cb, pulsesrc); pa_stream_set_latency_update_callback (pulsesrc->stream, gst_pulsesrc_stream_latency_update_cb, pulsesrc); pa_threaded_mainloop_unlock (pulsesrc->mainloop); return TRUE; /* ERRORS */ invalid_caps: { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, SETTINGS, ("Can't parse caps."), (NULL)); goto fail; } invalid_spec: { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, SETTINGS, ("Invalid sample specification."), (NULL)); goto fail; } bad_context: { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, FAILED, ("Bad context"), (NULL)); goto unlock_and_fail; } create_failed: { GST_ELEMENT_ERROR (pulsesrc, RESOURCE, FAILED, ("Failed to create stream: %s", pa_strerror (pa_context_errno (pulsesrc->context))), (NULL)); goto unlock_and_fail; } unlock_and_fail: { gst_pulsesrc_destroy_stream (pulsesrc); pa_threaded_mainloop_unlock (pulsesrc->mainloop); fail: return FALSE; } }