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-rw-r--r--src/gst/gstpipewiresink.c924
1 files changed, 924 insertions, 0 deletions
diff --git a/src/gst/gstpipewiresink.c b/src/gst/gstpipewiresink.c
new file mode 100644
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+++ b/src/gst/gstpipewiresink.c
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+/* GStreamer
+ *
+ * Copyright © 2018 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * SECTION:element-pipewiresink
+ *
+ * <refsect2>
+ * <title>Example launch line</title>
+ * |[
+ * gst-launch -v videotestsrc ! pipewiresink
+ * ]| Sends a test video source to PipeWire
+ * </refsect2>
+ */
+
+#define PW_ENABLE_DEPRECATED
+
+#include "config.h"
+#include "gstpipewiresink.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/socket.h>
+
+#include <spa/pod/builder.h>
+#include <spa/utils/result.h>
+
+#include <gst/video/video.h>
+
+#include "gstpipewireformat.h"
+
+GST_DEBUG_CATEGORY_STATIC (pipewire_sink_debug);
+#define GST_CAT_DEFAULT pipewire_sink_debug
+
+#define DEFAULT_PROP_MODE GST_PIPEWIRE_SINK_MODE_DEFAULT
+
+#define MIN_BUFFERS 8u
+
+enum
+{
+ PROP_0,
+ PROP_PATH,
+ PROP_TARGET_OBJECT,
+ PROP_CLIENT_NAME,
+ PROP_CLIENT_PROPERTIES,
+ PROP_STREAM_PROPERTIES,
+ PROP_MODE,
+ PROP_FD
+};
+
+GType
+gst_pipewire_sink_mode_get_type (void)
+{
+ static gsize mode_type = 0;
+ static const GEnumValue mode[] = {
+ {GST_PIPEWIRE_SINK_MODE_DEFAULT, "GST_PIPEWIRE_SINK_MODE_DEFAULT", "default"},
+ {GST_PIPEWIRE_SINK_MODE_RENDER, "GST_PIPEWIRE_SINK_MODE_RENDER", "render"},
+ {GST_PIPEWIRE_SINK_MODE_PROVIDE, "GST_PIPEWIRE_SINK_MODE_PROVIDE", "provide"},
+ {0, NULL, NULL},
+ };
+
+ if (g_once_init_enter (&mode_type)) {
+ GType tmp =
+ g_enum_register_static ("GstPipeWireSinkMode", mode);
+ g_once_init_leave (&mode_type, tmp);
+ }
+
+ return (GType) mode_type;
+}
+
+
+static GstStaticPadTemplate gst_pipewire_sink_template =
+GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS_ANY
+ );
+
+#define gst_pipewire_sink_parent_class parent_class
+G_DEFINE_TYPE (GstPipeWireSink, gst_pipewire_sink, GST_TYPE_BASE_SINK);
+
+static void gst_pipewire_sink_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_pipewire_sink_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+static GstStateChangeReturn
+gst_pipewire_sink_change_state (GstElement * element, GstStateChange transition);
+
+static gboolean gst_pipewire_sink_setcaps (GstBaseSink * bsink, GstCaps * caps);
+static GstCaps *gst_pipewire_sink_sink_fixate (GstBaseSink * bsink,
+ GstCaps * caps);
+
+static GstFlowReturn gst_pipewire_sink_render (GstBaseSink * psink,
+ GstBuffer * buffer);
+static gboolean gst_pipewire_sink_start (GstBaseSink * basesink);
+static gboolean gst_pipewire_sink_stop (GstBaseSink * basesink);
+
+static void
+gst_pipewire_sink_finalize (GObject * object)
+{
+ GstPipeWireSink *pwsink = GST_PIPEWIRE_SINK (object);
+
+ g_object_unref (pwsink->pool);
+
+ if (pwsink->stream_properties)
+ gst_structure_free (pwsink->stream_properties);
+ if (pwsink->client_properties)
+ gst_structure_free (pwsink->client_properties);
+ g_free (pwsink->path);
+ g_free (pwsink->target_object);
+ g_free (pwsink->client_name);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static gboolean
+gst_pipewire_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
+{
+ GstPipeWireSink *pwsink = GST_PIPEWIRE_SINK (bsink);
+
+ gst_query_add_allocation_pool (query, GST_BUFFER_POOL_CAST (pwsink->pool), 0, 0, 0);
+ return TRUE;
+}
+
+static void
+gst_pipewire_sink_class_init (GstPipeWireSinkClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+ GstBaseSinkClass *gstbasesink_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+ gstbasesink_class = (GstBaseSinkClass *) klass;
+
+ gobject_class->finalize = gst_pipewire_sink_finalize;
+ gobject_class->set_property = gst_pipewire_sink_set_property;
+ gobject_class->get_property = gst_pipewire_sink_get_property;
+
+ g_object_class_install_property (gobject_class,
+ PROP_PATH,
+ g_param_spec_string ("path",
+ "Path",
+ "The sink path to connect to (NULL = default)",
+ NULL,
+ G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS |
+ G_PARAM_DEPRECATED));
+
+ g_object_class_install_property (gobject_class,
+ PROP_TARGET_OBJECT,
+ g_param_spec_string ("target-object",
+ "Target object",
+ "The sink name/serial to connect to (NULL = default)",
+ NULL,
+ G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class,
+ PROP_CLIENT_NAME,
+ g_param_spec_string ("client-name",
+ "Client Name",
+ "The client name to use (NULL = default)",
+ NULL,
+ G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class,
+ PROP_CLIENT_PROPERTIES,
+ g_param_spec_boxed ("client-properties",
+ "Client properties",
+ "List of PipeWire client properties",
+ GST_TYPE_STRUCTURE,
+ G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class,
+ PROP_STREAM_PROPERTIES,
+ g_param_spec_boxed ("stream-properties",
+ "Stream properties",
+ "List of PipeWire stream properties",
+ GST_TYPE_STRUCTURE,
+ G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class,
+ PROP_MODE,
+ g_param_spec_enum ("mode",
+ "Mode",
+ "The mode to operate in",
+ GST_TYPE_PIPEWIRE_SINK_MODE,
+ DEFAULT_PROP_MODE,
+ G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS));
+
+ g_object_class_install_property (gobject_class,
+ PROP_FD,
+ g_param_spec_int ("fd",
+ "Fd",
+ "The fd to connect with",
+ -1, G_MAXINT, -1,
+ G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS));
+
+ gstelement_class->change_state = gst_pipewire_sink_change_state;
+
+ gst_element_class_set_static_metadata (gstelement_class,
+ "PipeWire sink", "Sink/Video",
+ "Send video to PipeWire", "Wim Taymans <wim.taymans@gmail.com>");
+
+ gst_element_class_add_pad_template (gstelement_class,
+ gst_static_pad_template_get (&gst_pipewire_sink_template));
+
+ gstbasesink_class->set_caps = gst_pipewire_sink_setcaps;
+ gstbasesink_class->fixate = gst_pipewire_sink_sink_fixate;
+ gstbasesink_class->propose_allocation = gst_pipewire_sink_propose_allocation;
+ gstbasesink_class->start = gst_pipewire_sink_start;
+ gstbasesink_class->stop = gst_pipewire_sink_stop;
+ gstbasesink_class->render = gst_pipewire_sink_render;
+
+ GST_DEBUG_CATEGORY_INIT (pipewire_sink_debug, "pipewiresink", 0,
+ "PipeWire Sink");
+}
+
+static void
+pool_activated (GstPipeWirePool *pool, GstPipeWireSink *sink)
+{
+ GstStructure *config;
+ GstCaps *caps;
+ guint size;
+ guint min_buffers;
+ guint max_buffers;
+ const struct spa_pod *port_params[3];
+ struct spa_pod_builder b = { NULL };
+ uint8_t buffer[1024];
+ struct spa_pod_frame f;
+
+ config = gst_buffer_pool_get_config (GST_BUFFER_POOL (pool));
+ gst_buffer_pool_config_get_params (config, &caps, &size, &min_buffers, &max_buffers);
+
+ spa_pod_builder_init (&b, buffer, sizeof (buffer));
+ spa_pod_builder_push_object (&b, &f, SPA_TYPE_OBJECT_ParamBuffers, SPA_PARAM_Buffers);
+ if (size == 0)
+ spa_pod_builder_add (&b,
+ SPA_PARAM_BUFFERS_size, SPA_POD_CHOICE_RANGE_Int(0, 0, INT32_MAX),
+ 0);
+ else
+ spa_pod_builder_add (&b,
+ SPA_PARAM_BUFFERS_size, SPA_POD_CHOICE_RANGE_Int(size, size, INT32_MAX),
+ 0);
+
+ spa_pod_builder_add (&b,
+ SPA_PARAM_BUFFERS_stride, SPA_POD_CHOICE_RANGE_Int(0, 0, INT32_MAX),
+ SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(
+ SPA_MAX(MIN_BUFFERS, min_buffers),
+ SPA_MAX(MIN_BUFFERS, min_buffers),
+ max_buffers ? max_buffers : INT32_MAX),
+ SPA_PARAM_BUFFERS_dataType, SPA_POD_CHOICE_FLAGS_Int(
+ (1<<SPA_DATA_MemFd) |
+ (1<<SPA_DATA_MemPtr)),
+ 0);
+ port_params[0] = spa_pod_builder_pop (&b, &f);
+
+ port_params[1] = spa_pod_builder_add_object (&b,
+ SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta,
+ SPA_PARAM_META_type, SPA_POD_Int(SPA_META_Header),
+ SPA_PARAM_META_size, SPA_POD_Int(sizeof (struct spa_meta_header)));
+
+ port_params[2] = spa_pod_builder_add_object (&b,
+ SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta,
+ SPA_PARAM_META_type, SPA_POD_Int(SPA_META_VideoCrop),
+ SPA_PARAM_META_size, SPA_POD_Int(sizeof (struct spa_meta_region)));
+
+ pw_thread_loop_lock (sink->core->loop);
+ pw_stream_update_params (sink->stream, port_params, 3);
+ pw_thread_loop_unlock (sink->core->loop);
+}
+
+static void
+gst_pipewire_sink_init (GstPipeWireSink * sink)
+{
+ sink->pool = gst_pipewire_pool_new ();
+ sink->client_name = g_strdup(pw_get_client_name());
+ sink->mode = DEFAULT_PROP_MODE;
+ sink->fd = -1;
+
+ g_signal_connect (sink->pool, "activated", G_CALLBACK (pool_activated), sink);
+}
+
+static GstCaps *
+gst_pipewire_sink_sink_fixate (GstBaseSink * bsink, GstCaps * caps)
+{
+ GstStructure *structure;
+
+ caps = gst_caps_make_writable (caps);
+
+ structure = gst_caps_get_structure (caps, 0);
+
+ if (gst_structure_has_name (structure, "video/x-raw")) {
+ gst_structure_fixate_field_nearest_int (structure, "width", 320);
+ gst_structure_fixate_field_nearest_int (structure, "height", 240);
+ gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1);
+
+ if (gst_structure_has_field (structure, "pixel-aspect-ratio"))
+ gst_structure_fixate_field_nearest_fraction (structure,
+ "pixel-aspect-ratio", 1, 1);
+ else
+ gst_structure_set (structure, "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1,
+ NULL);
+
+ if (gst_structure_has_field (structure, "colorimetry"))
+ gst_structure_fixate_field_string (structure, "colorimetry", "bt601");
+ if (gst_structure_has_field (structure, "chroma-site"))
+ gst_structure_fixate_field_string (structure, "chroma-site", "mpeg2");
+
+ if (gst_structure_has_field (structure, "interlace-mode"))
+ gst_structure_fixate_field_string (structure, "interlace-mode",
+ "progressive");
+ else
+ gst_structure_set (structure, "interlace-mode", G_TYPE_STRING,
+ "progressive", NULL);
+ } else if (gst_structure_has_name (structure, "audio/x-raw")) {
+ gst_structure_fixate_field_string (structure, "format", "S16LE");
+ gst_structure_fixate_field_nearest_int (structure, "channels", 2);
+ gst_structure_fixate_field_nearest_int (structure, "rate", 44100);
+ } else if (gst_structure_has_name (structure, "audio/mpeg")) {
+ gst_structure_fixate_field_string (structure, "format", "Encoded");
+ gst_structure_fixate_field_nearest_int (structure, "channels", 2);
+ gst_structure_fixate_field_nearest_int (structure, "rate", 44100);
+ } else if (gst_structure_has_name (structure, "audio/x-flac")) {
+ gst_structure_fixate_field_string (structure, "format", "Encoded");
+ gst_structure_fixate_field_nearest_int (structure, "channels", 2);
+ gst_structure_fixate_field_nearest_int (structure, "rate", 44100);
+ }
+
+ caps = GST_BASE_SINK_CLASS (parent_class)->fixate (bsink, caps);
+
+ return caps;
+}
+
+static void
+gst_pipewire_sink_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstPipeWireSink *pwsink = GST_PIPEWIRE_SINK (object);
+
+ switch (prop_id) {
+ case PROP_PATH:
+ g_free (pwsink->path);
+ pwsink->path = g_value_dup_string (value);
+ break;
+
+ case PROP_TARGET_OBJECT:
+ g_free (pwsink->target_object);
+ pwsink->target_object = g_value_dup_string (value);
+ break;
+
+ case PROP_CLIENT_NAME:
+ g_free (pwsink->client_name);
+ pwsink->client_name = g_value_dup_string (value);
+ break;
+
+ case PROP_CLIENT_PROPERTIES:
+ if (pwsink->client_properties)
+ gst_structure_free (pwsink->client_properties);
+ pwsink->client_properties =
+ gst_structure_copy (gst_value_get_structure (value));
+ break;
+
+ case PROP_STREAM_PROPERTIES:
+ if (pwsink->stream_properties)
+ gst_structure_free (pwsink->stream_properties);
+ pwsink->stream_properties =
+ gst_structure_copy (gst_value_get_structure (value));
+ break;
+
+ case PROP_MODE:
+ pwsink->mode = g_value_get_enum (value);
+ break;
+
+ case PROP_FD:
+ pwsink->fd = g_value_get_int (value);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_pipewire_sink_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstPipeWireSink *pwsink = GST_PIPEWIRE_SINK (object);
+
+ switch (prop_id) {
+ case PROP_PATH:
+ g_value_set_string (value, pwsink->path);
+ break;
+
+ case PROP_TARGET_OBJECT:
+ g_value_set_string (value, pwsink->target_object);
+ break;
+
+ case PROP_CLIENT_NAME:
+ g_value_set_string (value, pwsink->client_name);
+ break;
+
+ case PROP_CLIENT_PROPERTIES:
+ gst_value_set_structure (value, pwsink->client_properties);
+ break;
+
+ case PROP_STREAM_PROPERTIES:
+ gst_value_set_structure (value, pwsink->stream_properties);
+ break;
+
+ case PROP_MODE:
+ g_value_set_enum (value, pwsink->mode);
+ break;
+
+ case PROP_FD:
+ g_value_set_int (value, pwsink->fd);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+on_add_buffer (void *_data, struct pw_buffer *b)
+{
+ GstPipeWireSink *pwsink = _data;
+ gst_pipewire_pool_wrap_buffer (pwsink->pool, b);
+}
+
+static void
+on_remove_buffer (void *_data, struct pw_buffer *b)
+{
+ GstPipeWireSink *pwsink = _data;
+ GstPipeWirePoolData *data = b->user_data;
+
+ GST_LOG_OBJECT (pwsink, "remove buffer");
+
+ gst_buffer_unref (data->buf);
+}
+
+static void
+do_send_buffer (GstPipeWireSink *pwsink, GstBuffer *buffer)
+{
+ GstPipeWirePoolData *data;
+ gboolean res;
+ guint i;
+ struct spa_buffer *b;
+
+ data = gst_pipewire_pool_get_data(buffer);
+
+ b = data->b->buffer;
+
+ if (data->header) {
+ data->header->seq = GST_BUFFER_OFFSET (buffer);
+ data->header->pts = GST_BUFFER_PTS (buffer);
+ data->header->dts_offset = GST_BUFFER_DTS (buffer);
+ }
+ if (data->crop) {
+ GstVideoCropMeta *meta = gst_buffer_get_video_crop_meta (buffer);
+ if (meta) {
+ data->crop->region.position.x = meta->x;
+ data->crop->region.position.y = meta->y;
+ data->crop->region.size.width = meta->width;
+ data->crop->region.size.height = meta->width;
+ }
+ }
+ for (i = 0; i < b->n_datas; i++) {
+ struct spa_data *d = &b->datas[i];
+ GstMemory *mem = gst_buffer_peek_memory (buffer, i);
+ d->chunk->offset = mem->offset;
+ d->chunk->size = mem->size;
+ d->chunk->stride = 0;
+ }
+
+ if ((res = pw_stream_queue_buffer (pwsink->stream, data->b)) < 0) {
+ g_warning ("can't send buffer %s", spa_strerror(res));
+ }
+}
+
+
+static void
+on_process (void *data)
+{
+ GstPipeWireSink *pwsink = data;
+ GST_DEBUG ("signal");
+ g_cond_signal (&pwsink->pool->cond);
+}
+
+static void
+on_state_changed (void *data, enum pw_stream_state old, enum pw_stream_state state, const char *error)
+{
+ GstPipeWireSink *pwsink = data;
+
+ GST_DEBUG ("got stream state %d", state);
+
+ switch (state) {
+ case PW_STREAM_STATE_UNCONNECTED:
+ case PW_STREAM_STATE_CONNECTING:
+ case PW_STREAM_STATE_PAUSED:
+ break;
+ case PW_STREAM_STATE_STREAMING:
+ if (pw_stream_is_driving (pwsink->stream))
+ pw_stream_trigger_process (pwsink->stream);
+ break;
+ case PW_STREAM_STATE_ERROR:
+ GST_ELEMENT_ERROR (pwsink, RESOURCE, FAILED,
+ ("stream error: %s", error), (NULL));
+ break;
+ }
+ pw_thread_loop_signal (pwsink->core->loop, FALSE);
+}
+
+static void
+on_param_changed (void *data, uint32_t id, const struct spa_pod *param)
+{
+ GstPipeWireSink *pwsink = data;
+
+ if (param == NULL || id != SPA_PARAM_Format)
+ return;
+
+ if (gst_buffer_pool_is_active (GST_BUFFER_POOL_CAST (pwsink->pool)))
+ pool_activated (pwsink->pool, pwsink);
+}
+
+static gboolean
+gst_pipewire_sink_setcaps (GstBaseSink * bsink, GstCaps * caps)
+{
+ GstPipeWireSink *pwsink;
+ GPtrArray *possible;
+ enum pw_stream_state state;
+ const char *error = NULL;
+ gboolean res = FALSE;
+ GstStructure *config;
+ guint size;
+ guint min_buffers;
+ guint max_buffers;
+ struct timespec abstime;
+
+ pwsink = GST_PIPEWIRE_SINK (bsink);
+
+ possible = gst_caps_to_format_all (caps, SPA_PARAM_EnumFormat);
+
+ pw_thread_loop_lock (pwsink->core->loop);
+ state = pw_stream_get_state (pwsink->stream, &error);
+
+ if (state == PW_STREAM_STATE_ERROR)
+ goto start_error;
+
+ if (state == PW_STREAM_STATE_UNCONNECTED) {
+ enum pw_stream_flags flags = 0;
+ uint32_t target_id;
+
+ if (pwsink->mode != GST_PIPEWIRE_SINK_MODE_PROVIDE)
+ flags |= PW_STREAM_FLAG_AUTOCONNECT;
+ else
+ flags |= PW_STREAM_FLAG_DRIVER;
+
+ target_id = pwsink->path ? (uint32_t)atoi(pwsink->path) : PW_ID_ANY;
+
+ if (pwsink->target_object) {
+ struct spa_dict_item items[2] = {
+ SPA_DICT_ITEM_INIT(PW_KEY_TARGET_OBJECT, pwsink->target_object),
+ /* XXX deprecated but the portal and some example apps only
+ * provide the object id */
+ SPA_DICT_ITEM_INIT(PW_KEY_NODE_TARGET, NULL),
+ };
+ struct spa_dict dict = SPA_DICT_INIT_ARRAY(items);
+ uint64_t serial;
+
+ /* If target.object is a name, set it also to node.target */
+ if (spa_atou64(pwsink->target_object, &serial, 0)) {
+ dict.n_items = 1;
+ } else {
+ target_id = PW_ID_ANY;
+ items[1].value = pwsink->target_object;
+ }
+
+ pw_stream_update_properties (pwsink->stream, &dict);
+ }
+
+ pw_stream_connect (pwsink->stream,
+ PW_DIRECTION_OUTPUT,
+ target_id,
+ flags,
+ (const struct spa_pod **) possible->pdata,
+ possible->len);
+
+ pw_thread_loop_get_time (pwsink->core->loop, &abstime,
+ GST_PIPEWIRE_DEFAULT_TIMEOUT * SPA_NSEC_PER_SEC);
+
+ while (TRUE) {
+ state = pw_stream_get_state (pwsink->stream, &error);
+
+ if (state >= PW_STREAM_STATE_PAUSED)
+ break;
+
+ if (state == PW_STREAM_STATE_ERROR)
+ goto start_error;
+
+ if (pw_thread_loop_timed_wait_full (pwsink->core->loop, &abstime) < 0) {
+ error = "timeout";
+ goto start_error;
+ }
+ }
+ }
+ res = TRUE;
+
+ config = gst_buffer_pool_get_config (GST_BUFFER_POOL_CAST (pwsink->pool));
+ gst_buffer_pool_config_get_params (config, NULL, &size, &min_buffers, &max_buffers);
+ gst_buffer_pool_config_set_params (config, caps, size, min_buffers, max_buffers);
+ gst_buffer_pool_set_config (GST_BUFFER_POOL_CAST (pwsink->pool), config);
+
+ pw_thread_loop_unlock (pwsink->core->loop);
+
+ pwsink->negotiated = res;
+
+ return res;
+
+start_error:
+ {
+ GST_ERROR ("could not start stream: %s", error);
+ pw_thread_loop_unlock (pwsink->core->loop);
+ g_ptr_array_unref (possible);
+ return FALSE;
+ }
+}
+
+static GstFlowReturn
+gst_pipewire_sink_render (GstBaseSink * bsink, GstBuffer * buffer)
+{
+ GstPipeWireSink *pwsink;
+ GstFlowReturn res = GST_FLOW_OK;
+ const char *error = NULL;
+ gboolean unref_buffer = FALSE;
+
+ pwsink = GST_PIPEWIRE_SINK (bsink);
+
+ if (!pwsink->negotiated)
+ goto not_negotiated;
+
+ if (buffer->pool != GST_BUFFER_POOL_CAST (pwsink->pool) &&
+ !gst_buffer_pool_is_active (GST_BUFFER_POOL_CAST (pwsink->pool))) {
+ GstStructure *config;
+ GstCaps *caps;
+ guint size, min_buffers, max_buffers;
+
+ config = gst_buffer_pool_get_config (GST_BUFFER_POOL_CAST (pwsink->pool));
+ gst_buffer_pool_config_get_params (config, &caps, &size, &min_buffers, &max_buffers);
+
+ size = (size == 0) ? gst_buffer_get_size (buffer) : size;
+
+ gst_buffer_pool_config_set_params (config, caps, size, min_buffers, max_buffers);
+ gst_buffer_pool_set_config (GST_BUFFER_POOL_CAST (pwsink->pool), config);
+
+ gst_buffer_pool_set_active (GST_BUFFER_POOL_CAST (pwsink->pool), TRUE);
+ }
+
+ pw_thread_loop_lock (pwsink->core->loop);
+ if (pw_stream_get_state (pwsink->stream, &error) != PW_STREAM_STATE_STREAMING)
+ goto done_unlock;
+
+ if (buffer->pool != GST_BUFFER_POOL_CAST (pwsink->pool)) {
+ GstBuffer *b = NULL;
+ GstMapInfo info = { 0, };
+ GstBufferPoolAcquireParams params = { 0, };
+
+ pw_thread_loop_unlock (pwsink->core->loop);
+
+ if ((res = gst_buffer_pool_acquire_buffer (GST_BUFFER_POOL_CAST (pwsink->pool), &b, &params)) != GST_FLOW_OK)
+ goto done;
+
+ gst_buffer_map (b, &info, GST_MAP_WRITE);
+ gst_buffer_extract (buffer, 0, info.data, info.maxsize);
+ gst_buffer_unmap (b, &info);
+ gst_buffer_resize (b, 0, gst_buffer_get_size (buffer));
+ buffer = b;
+ unref_buffer = TRUE;
+
+ pw_thread_loop_lock (pwsink->core->loop);
+ if (pw_stream_get_state (pwsink->stream, &error) != PW_STREAM_STATE_STREAMING)
+ goto done_unlock;
+ }
+
+ GST_DEBUG ("push buffer");
+ do_send_buffer (pwsink, buffer);
+ if (unref_buffer)
+ gst_buffer_unref (buffer);
+
+ if (pw_stream_is_driving (pwsink->stream))
+ pw_stream_trigger_process (pwsink->stream);
+
+done_unlock:
+ pw_thread_loop_unlock (pwsink->core->loop);
+done:
+ return res;
+
+not_negotiated:
+ {
+ return GST_FLOW_NOT_NEGOTIATED;
+ }
+}
+
+static gboolean
+copy_properties (GQuark field_id,
+ const GValue *value,
+ gpointer user_data)
+{
+ struct pw_properties *properties = user_data;
+ GValue dst = { 0 };
+
+ if (g_value_type_transformable (G_VALUE_TYPE(value), G_TYPE_STRING)) {
+ g_value_init(&dst, G_TYPE_STRING);
+ if (g_value_transform(value, &dst)) {
+ pw_properties_set (properties,
+ g_quark_to_string (field_id),
+ g_value_get_string (&dst));
+ }
+ g_value_unset(&dst);
+ }
+ return TRUE;
+}
+
+static const struct pw_stream_events stream_events = {
+ PW_VERSION_STREAM_EVENTS,
+ .state_changed = on_state_changed,
+ .param_changed = on_param_changed,
+ .add_buffer = on_add_buffer,
+ .remove_buffer = on_remove_buffer,
+ .process = on_process,
+};
+
+static gboolean
+gst_pipewire_sink_start (GstBaseSink * basesink)
+{
+ GstPipeWireSink *pwsink = GST_PIPEWIRE_SINK (basesink);
+ struct pw_properties *props;
+
+ pwsink->negotiated = FALSE;
+
+ pw_thread_loop_lock (pwsink->core->loop);
+
+ props = pw_properties_new (NULL, NULL);
+ if (pwsink->client_name) {
+ pw_properties_set (props, PW_KEY_NODE_NAME, pwsink->client_name);
+ pw_properties_set (props, PW_KEY_NODE_DESCRIPTION, pwsink->client_name);
+ }
+ if (pwsink->stream_properties) {
+ gst_structure_foreach (pwsink->stream_properties, copy_properties, props);
+ }
+
+ if ((pwsink->stream = pw_stream_new (pwsink->core->core, pwsink->client_name, props)) == NULL)
+ goto no_stream;
+
+ pwsink->pool->stream = pwsink->stream;
+
+ pw_stream_add_listener(pwsink->stream,
+ &pwsink->stream_listener,
+ &stream_events,
+ pwsink);
+
+ pw_thread_loop_unlock (pwsink->core->loop);
+
+ return TRUE;
+
+no_stream:
+ {
+ GST_ELEMENT_ERROR (pwsink, RESOURCE, FAILED, ("can't create stream"), (NULL));
+ pw_thread_loop_unlock (pwsink->core->loop);
+ return FALSE;
+ }
+}
+
+static gboolean
+gst_pipewire_sink_stop (GstBaseSink * basesink)
+{
+ GstPipeWireSink *pwsink = GST_PIPEWIRE_SINK (basesink);
+
+ pw_thread_loop_lock (pwsink->core->loop);
+ if (pwsink->stream) {
+ pw_stream_destroy (pwsink->stream);
+ pwsink->stream = NULL;
+ pwsink->pool->stream = NULL;
+ }
+ pw_thread_loop_unlock (pwsink->core->loop);
+
+ pwsink->negotiated = FALSE;
+
+ return TRUE;
+}
+
+static gboolean
+gst_pipewire_sink_open (GstPipeWireSink * pwsink)
+{
+ struct pw_properties *props;
+
+ GST_DEBUG_OBJECT (pwsink, "open");
+
+ pwsink->core = gst_pipewire_core_get(pwsink->fd);
+ if (pwsink->core == NULL)
+ goto connect_error;
+
+ pw_thread_loop_lock (pwsink->core->loop);
+
+ props = pw_properties_new (NULL, NULL);
+ if (pwsink->client_properties) {
+ gst_structure_foreach (pwsink->client_properties, copy_properties, props);
+ pw_core_update_properties (pwsink->core->core, &props->dict);
+ }
+ pw_properties_free(props);
+ pw_thread_loop_unlock (pwsink->core->loop);
+
+ return TRUE;
+
+ /* ERRORS */
+connect_error:
+ {
+ GST_ELEMENT_ERROR (pwsink, RESOURCE, FAILED,
+ ("Failed to connect"), (NULL));
+ return FALSE;
+ }
+}
+
+static gboolean
+gst_pipewire_sink_close (GstPipeWireSink * pwsink)
+{
+ pw_thread_loop_lock (pwsink->core->loop);
+ if (pwsink->stream) {
+ pw_stream_destroy (pwsink->stream);
+ pwsink->stream = NULL;
+ }
+ pw_thread_loop_unlock (pwsink->core->loop);
+
+ if (pwsink->core) {
+ gst_pipewire_core_release (pwsink->core);
+ pwsink->core = NULL;
+ }
+ return TRUE;
+}
+
+static GstStateChangeReturn
+gst_pipewire_sink_change_state (GstElement * element, GstStateChange transition)
+{
+ GstStateChangeReturn ret;
+ GstPipeWireSink *this = GST_PIPEWIRE_SINK_CAST (element);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_NULL_TO_READY:
+ if (!gst_pipewire_sink_open (this))
+ goto open_failed;
+ break;
+ case GST_STATE_CHANGE_READY_TO_PAUSED:
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
+ /* uncork and start play */
+ pw_thread_loop_lock (this->core->loop);
+ pw_stream_set_active(this->stream, true);
+ pw_thread_loop_unlock (this->core->loop);
+ gst_buffer_pool_set_flushing(GST_BUFFER_POOL_CAST(this->pool), FALSE);
+ break;
+ case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
+ /* stop play ASAP by corking */
+ pw_thread_loop_lock (this->core->loop);
+ pw_stream_set_active(this->stream, false);
+ pw_thread_loop_unlock (this->core->loop);
+ gst_buffer_pool_set_flushing(GST_BUFFER_POOL_CAST(this->pool), TRUE);
+ break;
+ default:
+ break;
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ gst_buffer_pool_set_active(GST_BUFFER_POOL_CAST(this->pool), FALSE);
+ break;
+ case GST_STATE_CHANGE_READY_TO_NULL:
+ gst_pipewire_sink_close (this);
+ break;
+ default:
+ break;
+ }
+ return ret;
+
+ /* ERRORS */
+open_failed:
+ {
+ return GST_STATE_CHANGE_FAILURE;
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 09:37:29 +0000