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-rw-r--r--audio/gstavdtpsink.c1355
1 files changed, 1355 insertions, 0 deletions
diff --git a/audio/gstavdtpsink.c b/audio/gstavdtpsink.c
new file mode 100644
index 00000000..c956ecbd
--- /dev/null
+++ b/audio/gstavdtpsink.c
@@ -0,0 +1,1355 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2004-2007 Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ * This library 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 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <unistd.h>
+#include <sys/un.h>
+#include <sys/socket.h>
+#include <fcntl.h>
+#include <pthread.h>
+
+#include <netinet/in.h>
+
+#include <bluetooth/bluetooth.h>
+
+#include <gst/rtp/gstrtpbuffer.h>
+
+#include "ipc.h"
+#include "rtp.h"
+#include "gstsbcutil.h"
+
+#include "gstavdtpsink.h"
+
+GST_DEBUG_CATEGORY_STATIC(avdtp_sink_debug);
+#define GST_CAT_DEFAULT avdtp_sink_debug
+
+#define BUFFER_SIZE 2048
+#define TEMPLATE_MAX_BITPOOL 64
+#define CRC_PROTECTED 1
+#define CRC_UNPROTECTED 0
+
+#define GST_AVDTP_SINK_MUTEX_LOCK(s) G_STMT_START { \
+ g_mutex_lock (s->sink_lock); \
+ } G_STMT_END
+
+#define GST_AVDTP_SINK_MUTEX_UNLOCK(s) G_STMT_START { \
+ g_mutex_unlock (s->sink_lock); \
+ } G_STMT_END
+
+
+struct bluetooth_data {
+ struct bt_getcapabilities_rsp caps; /* Bluetooth device caps */
+ guint link_mtu;
+
+ gchar buffer[BUFFER_SIZE]; /* Codec transfer buffer */
+};
+
+#define IS_SBC(n) (strcmp((n), "audio/x-sbc") == 0)
+#define IS_MPEG(n) (strcmp((n), "audio/mpeg") == 0)
+
+enum {
+ PROP_0,
+ PROP_DEVICE,
+};
+
+GST_BOILERPLATE(GstAvdtpSink, gst_avdtp_sink, GstBaseSink,
+ GST_TYPE_BASE_SINK);
+
+static const GstElementDetails avdtp_sink_details =
+ GST_ELEMENT_DETAILS("Bluetooth AVDTP sink",
+ "Sink/Audio",
+ "Plays audio to an A2DP device",
+ "Marcel Holtmann <marcel@holtmann.org>");
+
+static GstStaticPadTemplate avdtp_sink_factory =
+ GST_STATIC_PAD_TEMPLATE("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
+ GST_STATIC_CAPS("application/x-rtp, "
+ "media = (string) \"audio\", "
+ "encoding-name = (string) \"SBC\";"
+ "application/x-rtp, "
+ "media = (string) \"audio\", "
+ "payload = (int) "
+ GST_RTP_PAYLOAD_MPA_STRING ", "
+ "clock-rate = (int) 90000; "
+ "application/x-rtp, "
+ "media = (string) \"audio\", "
+ "payload = (int) "
+ GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
+ "clock-rate = (int) 90000, "
+ "encoding-name = (string) \"MPA\""
+ ));
+
+static GIOError gst_avdtp_sink_audioservice_send(GstAvdtpSink *self,
+ const bt_audio_msg_header_t *msg);
+static GIOError gst_avdtp_sink_audioservice_expect(
+ GstAvdtpSink *self,
+ bt_audio_msg_header_t *outmsg,
+ int expected_type);
+
+
+static void gst_avdtp_sink_base_init(gpointer g_class)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS(g_class);
+
+ gst_element_class_add_pad_template(element_class,
+ gst_static_pad_template_get(&avdtp_sink_factory));
+
+ gst_element_class_set_details(element_class, &avdtp_sink_details);
+}
+
+static gboolean gst_avdtp_sink_stop(GstBaseSink *basesink)
+{
+ GstAvdtpSink *self = GST_AVDTP_SINK(basesink);
+
+ GST_INFO_OBJECT(self, "stop");
+
+ if (self->watch_id != 0) {
+ g_source_remove(self->watch_id);
+ self->watch_id = 0;
+ }
+
+ if (self->server) {
+ bt_audio_service_close(g_io_channel_unix_get_fd(self->server));
+ g_io_channel_unref(self->server);
+ self->server = NULL;
+ }
+
+ if (self->stream) {
+ g_io_channel_flush(self->stream, NULL);
+ g_io_channel_close(self->stream);
+ g_io_channel_unref(self->stream);
+ self->stream = NULL;
+ }
+
+ if (self->data) {
+ g_free(self->data);
+ self->data = NULL;
+ }
+
+ if (self->stream_caps) {
+ gst_caps_unref(self->stream_caps);
+ self->stream_caps = NULL;
+ }
+
+ if (self->dev_caps) {
+ gst_caps_unref(self->dev_caps);
+ self->dev_caps = NULL;
+ }
+
+ return TRUE;
+}
+
+static void gst_avdtp_sink_finalize(GObject *object)
+{
+ GstAvdtpSink *self = GST_AVDTP_SINK(object);
+
+ if (self->data)
+ gst_avdtp_sink_stop(GST_BASE_SINK(self));
+
+ if (self->device)
+ g_free(self->device);
+
+ g_mutex_free(self->sink_lock);
+
+ G_OBJECT_CLASS(parent_class)->finalize(object);
+}
+
+static void gst_avdtp_sink_set_property(GObject *object, guint prop_id,
+ const GValue *value, GParamSpec *pspec)
+{
+ GstAvdtpSink *sink = GST_AVDTP_SINK(object);
+
+ switch (prop_id) {
+ case PROP_DEVICE:
+ if (sink->device)
+ g_free(sink->device);
+ sink->device = g_value_dup_string(value);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+ break;
+ }
+}
+
+static void gst_avdtp_sink_get_property(GObject *object, guint prop_id,
+ GValue *value, GParamSpec *pspec)
+{
+ GstAvdtpSink *sink = GST_AVDTP_SINK(object);
+
+ switch (prop_id) {
+ case PROP_DEVICE:
+ g_value_set_string(value, sink->device);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+ break;
+ }
+}
+
+static gint gst_avdtp_sink_bluetooth_recvmsg_fd(GstAvdtpSink *sink)
+{
+ int err, ret;
+
+ ret = bt_audio_service_get_data_fd(
+ g_io_channel_unix_get_fd(sink->server));
+
+ if (ret < 0) {
+ err = errno;
+ GST_ERROR_OBJECT(sink, "Unable to receive fd: %s (%d)",
+ strerror(err), err);
+ return -err;
+ }
+
+ sink->stream = g_io_channel_unix_new(ret);
+ GST_DEBUG_OBJECT(sink, "stream_fd=%d", ret);
+
+ return 0;
+}
+
+static gboolean gst_avdtp_sink_init_pkt_conf(GstAvdtpSink *sink,
+ GstCaps *caps,
+ sbc_capabilities_t *pkt)
+{
+ sbc_capabilities_t *cfg = &sink->data->caps.sbc_capabilities;
+ const GValue *value = NULL;
+ const char *pref, *name;
+ gint rate, subbands, blocks;
+ GstStructure *structure = gst_caps_get_structure(caps, 0);
+
+ name = gst_structure_get_name(structure);
+ /* FIXME only sbc supported here, should suport mp3 */
+ if (!(IS_SBC(name))) {
+ GST_ERROR_OBJECT(sink, "Unsupported format %s", name);
+ return FALSE;
+ }
+
+ value = gst_structure_get_value(structure, "rate");
+ rate = g_value_get_int(value);
+ if (rate == 44100)
+ cfg->frequency = BT_SBC_SAMPLING_FREQ_44100;
+ else if (rate == 48000)
+ cfg->frequency = BT_SBC_SAMPLING_FREQ_48000;
+ else if (rate == 32000)
+ cfg->frequency = BT_SBC_SAMPLING_FREQ_32000;
+ else if (rate == 16000)
+ cfg->frequency = BT_SBC_SAMPLING_FREQ_16000;
+ else {
+ GST_ERROR_OBJECT(sink, "Invalid rate while setting caps");
+ return FALSE;
+ }
+
+ value = gst_structure_get_value(structure, "mode");
+ pref = g_value_get_string(value);
+ if (strcmp(pref, "auto") == 0)
+ cfg->channel_mode = BT_A2DP_CHANNEL_MODE_AUTO;
+ else if (strcmp(pref, "mono") == 0)
+ cfg->channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
+ else if (strcmp(pref, "dual") == 0)
+ cfg->channel_mode = BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL;
+ else if (strcmp(pref, "stereo") == 0)
+ cfg->channel_mode = BT_A2DP_CHANNEL_MODE_STEREO;
+ else if (strcmp(pref, "joint") == 0)
+ cfg->channel_mode = BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
+ else {
+ GST_ERROR_OBJECT(sink, "Invalid mode %s", pref);
+ return FALSE;
+ }
+
+ value = gst_structure_get_value(structure, "allocation");
+ pref = g_value_get_string(value);
+ if (strcmp(pref, "auto") == 0)
+ cfg->allocation_method = BT_A2DP_ALLOCATION_AUTO;
+ else if (strcmp(pref, "loudness") == 0)
+ cfg->allocation_method = BT_A2DP_ALLOCATION_LOUDNESS;
+ else if (strcmp(pref, "snr") == 0)
+ cfg->allocation_method = BT_A2DP_ALLOCATION_SNR;
+ else {
+ GST_ERROR_OBJECT(sink, "Invalid allocation: %s", pref);
+ return FALSE;
+ }
+
+ value = gst_structure_get_value(structure, "subbands");
+ subbands = g_value_get_int(value);
+ if (subbands == 8)
+ cfg->subbands = BT_A2DP_SUBBANDS_8;
+ else if (subbands == 4)
+ cfg->subbands = BT_A2DP_SUBBANDS_4;
+ else {
+ GST_ERROR_OBJECT(sink, "Invalid subbands %d", subbands);
+ return FALSE;
+ }
+
+ value = gst_structure_get_value(structure, "blocks");
+ blocks = g_value_get_int(value);
+ if (blocks == 16)
+ cfg->block_length = BT_A2DP_BLOCK_LENGTH_16;
+ else if (blocks == 12)
+ cfg->block_length = BT_A2DP_BLOCK_LENGTH_12;
+ else if (blocks == 8)
+ cfg->block_length = BT_A2DP_BLOCK_LENGTH_8;
+ else if (blocks == 4)
+ cfg->block_length = BT_A2DP_BLOCK_LENGTH_4;
+ else {
+ GST_ERROR_OBJECT(sink, "Invalid blocks %d", blocks);
+ return FALSE;
+ }
+
+ value = gst_structure_get_value(structure, "bitpool");
+ cfg->max_bitpool = cfg->min_bitpool = g_value_get_int(value);
+
+ memcpy(pkt, cfg, sizeof(*pkt));
+
+ return TRUE;
+}
+
+static gboolean gst_avdtp_sink_conf_recv_stream_fd(
+ GstAvdtpSink *self)
+{
+ struct bluetooth_data *data = self->data;
+ gint ret;
+ GIOError err;
+ GError *gerr = NULL;
+ GIOStatus status;
+ GIOFlags flags;
+ gsize read;
+
+ ret = gst_avdtp_sink_bluetooth_recvmsg_fd(self);
+ if (ret < 0)
+ return FALSE;
+
+ if (!self->stream) {
+ GST_ERROR_OBJECT(self, "Error while configuring device: "
+ "could not acquire audio socket");
+ return FALSE;
+ }
+
+ /* set stream socket to nonblock */
+ GST_LOG_OBJECT(self, "setting stream socket to nonblock");
+ flags = g_io_channel_get_flags(self->stream);
+ flags |= G_IO_FLAG_NONBLOCK;
+ status = g_io_channel_set_flags(self->stream, flags, &gerr);
+ if (status != G_IO_STATUS_NORMAL) {
+ if (gerr)
+ GST_WARNING_OBJECT(self, "Error while "
+ "setting server socket to nonblock: "
+ "%s", gerr->message);
+ else
+ GST_WARNING_OBJECT(self, "Error while "
+ "setting server "
+ "socket to nonblock");
+ }
+
+ /* It is possible there is some outstanding
+ data in the pipe - we have to empty it */
+ GST_LOG_OBJECT(self, "emptying stream pipe");
+ while (1) {
+ err = g_io_channel_read(self->stream, data->buffer,
+ (gsize) data->link_mtu,
+ &read);
+ if (err != G_IO_ERROR_NONE || read <= 0)
+ break;
+ }
+
+ /* set stream socket to block */
+ GST_LOG_OBJECT(self, "setting stream socket to block");
+ flags = g_io_channel_get_flags(self->stream);
+ flags &= ~G_IO_FLAG_NONBLOCK;
+ status = g_io_channel_set_flags(self->stream, flags, &gerr);
+ if (status != G_IO_STATUS_NORMAL) {
+ if (gerr)
+ GST_WARNING_OBJECT(self, "Error while "
+ "setting server socket to block:"
+ "%s", gerr->message);
+ else
+ GST_WARNING_OBJECT(self, "Error while "
+ "setting server "
+ "socket to block");
+ }
+
+ memset(data->buffer, 0, sizeof(data->buffer));
+
+ return TRUE;
+}
+
+static gboolean server_callback(GIOChannel *chan,
+ GIOCondition cond, gpointer data)
+{
+ GstAvdtpSink *sink;
+
+ if (cond & G_IO_HUP || cond & G_IO_NVAL)
+ return FALSE;
+ else if (cond & G_IO_ERR) {
+ sink = GST_AVDTP_SINK(data);
+ GST_WARNING_OBJECT(sink, "Untreated callback G_IO_ERR");
+ }
+
+ return TRUE;
+}
+
+static GstStructure *gst_avdtp_sink_parse_sbc_caps(
+ GstAvdtpSink *self, sbc_capabilities_t *sbc)
+{
+ GstStructure *structure;
+ GValue *value;
+ GValue *list;
+ gboolean mono, stereo;
+
+ structure = gst_structure_empty_new("audio/x-sbc");
+ value = g_value_init(g_new0(GValue, 1), G_TYPE_STRING);
+
+ /* mode */
+ list = g_value_init(g_new0(GValue, 1), GST_TYPE_LIST);
+ if (sbc->channel_mode == BT_A2DP_CHANNEL_MODE_AUTO) {
+ g_value_set_static_string(value, "joint");
+ gst_value_list_prepend_value(list, value);
+ g_value_set_static_string(value, "stereo");
+ gst_value_list_prepend_value(list, value);
+ g_value_set_static_string(value, "mono");
+ gst_value_list_prepend_value(list, value);
+ g_value_set_static_string(value, "dual");
+ gst_value_list_prepend_value(list, value);
+ } else {
+ if (sbc->channel_mode & BT_A2DP_CHANNEL_MODE_MONO) {
+ g_value_set_static_string(value, "mono");
+ gst_value_list_prepend_value(list, value);
+ }
+ if (sbc->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO) {
+ g_value_set_static_string(value, "stereo");
+ gst_value_list_prepend_value(list, value);
+ }
+ if (sbc->channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL) {
+ g_value_set_static_string(value, "dual");
+ gst_value_list_prepend_value(list, value);
+ }
+ if (sbc->channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO) {
+ g_value_set_static_string(value, "joint");
+ gst_value_list_prepend_value(list, value);
+ }
+ }
+ g_value_unset(value);
+ if (list) {
+ gst_structure_set_value(structure, "mode", list);
+ g_free(list);
+ list = NULL;
+ }
+
+ /* subbands */
+ list = g_value_init(g_new0(GValue, 1), GST_TYPE_LIST);
+ value = g_value_init(value, G_TYPE_INT);
+ if (sbc->subbands & BT_A2DP_SUBBANDS_4) {
+ g_value_set_int(value, 4);
+ gst_value_list_prepend_value(list, value);
+ }
+ if (sbc->subbands & BT_A2DP_SUBBANDS_8) {
+ g_value_set_int(value, 8);
+ gst_value_list_prepend_value(list, value);
+ }
+ g_value_unset(value);
+ if (list) {
+ gst_structure_set_value(structure, "subbands", list);
+ g_free(list);
+ list = NULL;
+ }
+
+ /* blocks */
+ value = g_value_init(value, G_TYPE_INT);
+ list = g_value_init(g_new0(GValue, 1), GST_TYPE_LIST);
+ if (sbc->block_length & BT_A2DP_BLOCK_LENGTH_16) {
+ g_value_set_int(value, 16);
+ gst_value_list_prepend_value(list, value);
+ }
+ if (sbc->block_length & BT_A2DP_BLOCK_LENGTH_12) {
+ g_value_set_int(value, 12);
+ gst_value_list_prepend_value(list, value);
+ }
+ if (sbc->block_length & BT_A2DP_BLOCK_LENGTH_8) {
+ g_value_set_int(value, 8);
+ gst_value_list_prepend_value(list, value);
+ }
+ if (sbc->block_length & BT_A2DP_BLOCK_LENGTH_4) {
+ g_value_set_int(value, 4);
+ gst_value_list_prepend_value(list, value);
+ }
+ g_value_unset(value);
+ if (list) {
+ gst_structure_set_value(structure, "blocks", list);
+ g_free(list);
+ list = NULL;
+ }
+
+ /* allocation */
+ g_value_init(value, G_TYPE_STRING);
+ list = g_value_init(g_new0(GValue,1), GST_TYPE_LIST);
+ if (sbc->allocation_method == BT_A2DP_ALLOCATION_AUTO) {
+ g_value_set_static_string(value, "loudness");
+ gst_value_list_prepend_value(list, value);
+ g_value_set_static_string(value, "snr");
+ gst_value_list_prepend_value(list, value);
+ } else {
+ if (sbc->allocation_method & BT_A2DP_ALLOCATION_LOUDNESS) {
+ g_value_set_static_string(value, "loudness");
+ gst_value_list_prepend_value(list, value);
+ }
+ if (sbc->allocation_method & BT_A2DP_ALLOCATION_SNR) {
+ g_value_set_static_string(value, "snr");
+ gst_value_list_prepend_value(list, value);
+ }
+ }
+ g_value_unset(value);
+ if (list) {
+ gst_structure_set_value(structure, "allocation", list);
+ g_free(list);
+ list = NULL;
+ }
+
+ /* rate */
+ g_value_init(value, G_TYPE_INT);
+ list = g_value_init(g_new0(GValue, 1), GST_TYPE_LIST);
+ if (sbc->frequency & BT_SBC_SAMPLING_FREQ_48000) {
+ g_value_set_int(value, 48000);
+ gst_value_list_prepend_value(list, value);
+ }
+ if (sbc->frequency & BT_SBC_SAMPLING_FREQ_44100) {
+ g_value_set_int(value, 44100);
+ gst_value_list_prepend_value(list, value);
+ }
+ if (sbc->frequency & BT_SBC_SAMPLING_FREQ_32000) {
+ g_value_set_int(value, 32000);
+ gst_value_list_prepend_value(list, value);
+ }
+ if (sbc->frequency & BT_SBC_SAMPLING_FREQ_16000) {
+ g_value_set_int(value, 16000);
+ gst_value_list_prepend_value(list, value);
+ }
+ g_value_unset(value);
+ if (list) {
+ gst_structure_set_value(structure, "rate", list);
+ g_free(list);
+ list = NULL;
+ }
+
+ /* bitpool */
+ value = g_value_init(value, GST_TYPE_INT_RANGE);
+ gst_value_set_int_range(value,
+ MIN(sbc->min_bitpool, TEMPLATE_MAX_BITPOOL),
+ MIN(sbc->max_bitpool, TEMPLATE_MAX_BITPOOL));
+ gst_structure_set_value(structure, "bitpool", value);
+ g_value_unset(value);
+
+ /* channels */
+ if (sbc->channel_mode == BT_A2DP_CHANNEL_MODE_AUTO) {
+ g_value_init(value, GST_TYPE_INT_RANGE);
+ gst_value_set_int_range(value, 1, 2);
+ } else {
+ mono = FALSE;
+ stereo = FALSE;
+ if (sbc->channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
+ mono = TRUE;
+ if ((sbc->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO) ||
+ (sbc->channel_mode &
+ BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL) ||
+ (sbc->channel_mode &
+ BT_A2DP_CHANNEL_MODE_JOINT_STEREO))
+ stereo = TRUE;
+
+ if (mono && stereo) {
+ g_value_init(value, GST_TYPE_INT_RANGE);
+ gst_value_set_int_range(value, 1, 2);
+ } else {
+ g_value_init(value, G_TYPE_INT);
+ if (mono)
+ g_value_set_int(value, 1);
+ else if (stereo)
+ g_value_set_int(value, 2);
+ else {
+ GST_ERROR_OBJECT(self,
+ "Unexpected number of channels");
+ g_value_set_int(value, 0);
+ }
+ }
+ }
+ gst_structure_set_value(structure, "channels", value);
+ g_free(value);
+
+ return structure;
+}
+
+static GstStructure *gst_avdtp_sink_parse_mpeg_caps(
+ GstAvdtpSink *self, mpeg_capabilities_t *mpeg)
+{
+ GstStructure *structure;
+ GValue *value;
+ GValue *list;
+ gboolean valid_layer = FALSE;
+ gboolean mono, stereo;
+
+ GST_LOG_OBJECT(self, "parsing mpeg caps");
+
+ structure = gst_structure_empty_new("audio/mpeg");
+ value = g_new0(GValue, 1);
+ g_value_init(value, G_TYPE_INT);
+
+ list = g_value_init(g_new0(GValue, 1), GST_TYPE_LIST);
+ g_value_set_int(value, 1);
+ gst_value_list_prepend_value(list, value);
+ g_value_set_int(value, 2);
+ gst_value_list_prepend_value(list, value);
+ gst_structure_set_value(structure, "mpegversion", list);
+ g_free(list);
+
+ /* layer */
+ GST_LOG_OBJECT(self, "setting mpeg layer");
+ list = g_value_init(g_new0(GValue, 1), GST_TYPE_LIST);
+ if (mpeg->layer & BT_MPEG_LAYER_1) {
+ g_value_set_int(value, 1);
+ gst_value_list_prepend_value(list, value);
+ valid_layer = TRUE;
+ }
+ if (mpeg->layer & BT_MPEG_LAYER_2) {
+ g_value_set_int(value, 2);
+ gst_value_list_prepend_value(list, value);
+ valid_layer = TRUE;
+ }
+ if (mpeg->layer & BT_MPEG_LAYER_3) {
+ g_value_set_int(value, 3);
+ gst_value_list_prepend_value(list, value);
+ valid_layer = TRUE;
+ }
+ if (list) {
+ gst_structure_set_value(structure, "layer", list);
+ g_free(list);
+ list = NULL;
+ }
+
+ if (!valid_layer) {
+ gst_structure_free(structure);
+ g_free(value);
+ return NULL;
+ }
+
+ /* rate */
+ GST_LOG_OBJECT(self, "setting mpeg rate");
+ list = g_value_init(g_new0(GValue, 1), GST_TYPE_LIST);
+ if (mpeg->frequency & BT_MPEG_SAMPLING_FREQ_48000) {
+ g_value_set_int(value, 48000);
+ gst_value_list_prepend_value(list, value);
+ }
+ if (mpeg->frequency & BT_MPEG_SAMPLING_FREQ_44100) {
+ g_value_set_int(value, 44100);
+ gst_value_list_prepend_value(list, value);
+ }
+ if (mpeg->frequency & BT_MPEG_SAMPLING_FREQ_32000) {
+ g_value_set_int(value, 32000);
+ gst_value_list_prepend_value(list, value);
+ }
+ if (mpeg->frequency & BT_MPEG_SAMPLING_FREQ_24000) {
+ g_value_set_int(value, 24000);
+ gst_value_list_prepend_value(list, value);
+ }
+ if (mpeg->frequency & BT_MPEG_SAMPLING_FREQ_22050) {
+ g_value_set_int(value, 22050);
+ gst_value_list_prepend_value(list, value);
+ }
+ if (mpeg->frequency & BT_MPEG_SAMPLING_FREQ_16000) {
+ g_value_set_int(value, 16000);
+ gst_value_list_prepend_value(list, value);
+ }
+ g_value_unset(value);
+ if (list) {
+ gst_structure_set_value(structure, "rate", list);
+ g_free(list);
+ list = NULL;
+ }
+
+ /* channels */
+ GST_LOG_OBJECT(self, "setting mpeg channels");
+ mono = FALSE;
+ stereo = FALSE;
+ if (mpeg->channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
+ mono = TRUE;
+ if ((mpeg->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO) ||
+ (mpeg->channel_mode &
+ BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL) ||
+ (mpeg->channel_mode &
+ BT_A2DP_CHANNEL_MODE_JOINT_STEREO))
+ stereo = TRUE;
+
+ if (mono && stereo) {
+ g_value_init(value, GST_TYPE_INT_RANGE);
+ gst_value_set_int_range(value, 1, 2);
+ } else {
+ g_value_init(value, G_TYPE_INT);
+ if (mono)
+ g_value_set_int(value, 1);
+ else if (stereo)
+ g_value_set_int(value, 2);
+ else {
+ GST_ERROR_OBJECT(self,
+ "Unexpected number of channels");
+ g_value_set_int(value, 0);
+ }
+ }
+ gst_structure_set_value(structure, "channels", value);
+ g_free(value);
+
+ return structure;
+}
+
+static gboolean gst_avdtp_sink_update_caps(GstAvdtpSink *self)
+{
+ sbc_capabilities_t *sbc = &self->data->caps.sbc_capabilities;
+ mpeg_capabilities_t *mpeg = &self->data->caps.mpeg_capabilities;
+ GstStructure *sbc_structure;
+ GstStructure *mpeg_structure;
+ gchar *tmp;
+
+ GST_LOG_OBJECT(self, "updating device caps");
+
+ sbc_structure = gst_avdtp_sink_parse_sbc_caps(self, sbc);
+ mpeg_structure = gst_avdtp_sink_parse_mpeg_caps(self, mpeg);
+
+ if (self->dev_caps != NULL)
+ gst_caps_unref(self->dev_caps);
+ self->dev_caps = gst_caps_new_full(sbc_structure, NULL);
+ if (mpeg_structure != NULL)
+ gst_caps_append_structure(self->dev_caps, mpeg_structure);
+
+ tmp = gst_caps_to_string(self->dev_caps);
+ GST_DEBUG_OBJECT(self, "Device capabilities: %s", tmp);
+ g_free(tmp);
+
+ return TRUE;
+}
+
+static gboolean gst_avdtp_sink_get_capabilities(GstAvdtpSink *self)
+{
+ gchar *buf[BT_AUDIO_IPC_PACKET_SIZE];
+ struct bt_getcapabilities_req *req = (void *) buf;
+ struct bt_getcapabilities_rsp *rsp = (void *) buf;
+ GIOError io_error;
+
+ memset(req, 0, BT_AUDIO_IPC_PACKET_SIZE);
+
+ req->h.msg_type = BT_GETCAPABILITIES_REQ;
+ if (self->device == NULL)
+ return FALSE;
+ strncpy(req->device, self->device, 18);
+
+ io_error = gst_avdtp_sink_audioservice_send(self, &req->h);
+ if (io_error != G_IO_ERROR_NONE) {
+ GST_ERROR_OBJECT(self, "Error while asking device caps");
+ return FALSE;
+ }
+
+ io_error = gst_avdtp_sink_audioservice_expect(self,
+ &rsp->rsp_h.msg_h, BT_GETCAPABILITIES_RSP);
+ if (io_error != G_IO_ERROR_NONE) {
+ GST_ERROR_OBJECT(self, "Error while getting device caps");
+ return FALSE;
+ }
+
+ if (rsp->rsp_h.posix_errno != 0) {
+ GST_ERROR_OBJECT(self, "BT_GETCAPABILITIES failed : %s(%d)",
+ strerror(rsp->rsp_h.posix_errno),
+ rsp->rsp_h.posix_errno);
+ return FALSE;
+ }
+
+ memcpy(&self->data->caps, rsp, sizeof(*rsp));
+ if (!gst_avdtp_sink_update_caps(self)) {
+ GST_WARNING_OBJECT(self, "failed to update capabilities");
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static gint gst_avdtp_sink_get_channel_mode(const gchar *mode)
+{
+ if (strcmp(mode, "stereo") == 0)
+ return BT_A2DP_CHANNEL_MODE_STEREO;
+ else if (strcmp(mode, "joint") == 0)
+ return BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
+ else if (strcmp(mode, "dual") == 0)
+ return BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL;
+ else if (strcmp(mode, "mono") == 0)
+ return BT_A2DP_CHANNEL_MODE_MONO;
+ else
+ return -1;
+}
+
+static void gst_avdtp_sink_tag(const GstTagList *taglist,
+ const gchar* tag, gpointer user_data)
+{
+ gboolean crc;
+ gchar *channel_mode = NULL;
+ GstAvdtpSink *self = GST_AVDTP_SINK(user_data);
+
+ if (strcmp(tag, "has-crc") == 0) {
+
+ if (!gst_tag_list_get_boolean(taglist, tag, &crc)) {
+ GST_WARNING_OBJECT(self, "failed to get crc tag");
+ self->mpeg_stream_changed = TRUE;
+ }
+
+ gst_avdtp_sink_set_crc(self, crc);
+
+ } else if (strcmp(tag, "channel-mode") == 0) {
+
+ if (!gst_tag_list_get_string(taglist, tag, &channel_mode)) {
+ GST_WARNING_OBJECT(self,
+ "failed to get channel-mode tag");
+ self->mpeg_stream_changed = TRUE;
+ }
+
+ self->channel_mode = gst_avdtp_sink_get_channel_mode(
+ channel_mode);
+ if (self->channel_mode == -1)
+ GST_WARNING_OBJECT(self, "Received invalid channel "
+ "mode: %s", channel_mode);
+ g_free(channel_mode);
+
+ } else
+ GST_DEBUG_OBJECT(self, "received unused tag: %s", tag);
+}
+
+static gboolean gst_avdtp_sink_event(GstBaseSink *basesink,
+ GstEvent *event)
+{
+ GstAvdtpSink *self = GST_AVDTP_SINK(basesink);
+ GstTagList *taglist = NULL;
+
+ if (GST_EVENT_TYPE(event) == GST_EVENT_TAG) {
+ /* we check the tags, mp3 has tags that are importants and
+ * are outside caps */
+ gst_event_parse_tag(event, &taglist);
+ gst_tag_list_foreach(taglist, gst_avdtp_sink_tag, self);
+ }
+
+ return TRUE;
+}
+
+static gboolean gst_avdtp_sink_start(GstBaseSink *basesink)
+{
+ GstAvdtpSink *self = GST_AVDTP_SINK(basesink);
+ gint sk;
+ gint err;
+
+ GST_INFO_OBJECT(self, "start");
+
+ self->watch_id = 0;
+
+ sk = bt_audio_service_open();
+ if (sk <= 0) {
+ err = errno;
+ GST_ERROR_OBJECT(self, "Cannot open connection to bt "
+ "audio service: %s %d", strerror(err), err);
+ goto failed;
+ }
+
+ self->server = g_io_channel_unix_new(sk);
+ self->watch_id = g_io_add_watch(self->server, G_IO_HUP | G_IO_ERR |
+ G_IO_NVAL, server_callback, self);
+
+ self->data = g_new0(struct bluetooth_data, 1);
+ memset(self->data, 0, sizeof(struct bluetooth_data));
+
+ self->stream = NULL;
+ self->stream_caps = NULL;
+ self->mp3_using_crc = -1;
+ self->channel_mode = -1;
+ self->mpeg_stream_changed = FALSE;
+
+ if (!gst_avdtp_sink_get_capabilities(self)) {
+ GST_ERROR_OBJECT(self, "failed to get capabilities "
+ "from device");
+ goto failed;
+ }
+
+ return TRUE;
+
+failed:
+ bt_audio_service_close(sk);
+ return FALSE;
+}
+
+static gboolean gst_avdtp_sink_stream_start(GstAvdtpSink *self)
+{
+ gchar buf[BT_AUDIO_IPC_PACKET_SIZE];
+ struct bt_streamstart_req *req = (void *) buf;
+ struct bt_streamstart_rsp *rsp = (void *) buf;
+ struct bt_streamfd_ind *ind = (void*) buf;
+ GIOError io_error;
+
+ GST_DEBUG_OBJECT(self, "stream start");
+
+ memset (req, 0, sizeof(buf));
+ req->h.msg_type = BT_STREAMSTART_REQ;
+
+ io_error = gst_avdtp_sink_audioservice_send(self, &req->h);
+ if (io_error != G_IO_ERROR_NONE) {
+ GST_ERROR_OBJECT(self, "Error ocurred while sending "
+ "start packet");
+ return FALSE;
+ }
+
+ GST_DEBUG_OBJECT(self, "stream start packet sent");
+
+ io_error = gst_avdtp_sink_audioservice_expect(self,
+ &rsp->rsp_h.msg_h, BT_STREAMSTART_RSP);
+ if (io_error != G_IO_ERROR_NONE) {
+ GST_ERROR_OBJECT(self, "Error while stream "
+ "start confirmation");
+ return FALSE;
+ }
+
+ if (rsp->rsp_h.posix_errno != 0) {
+ GST_ERROR_OBJECT(self, "BT_STREAMSTART_RSP failed : %s(%d)",
+ strerror(rsp->rsp_h.posix_errno),
+ rsp->rsp_h.posix_errno);
+ return FALSE;
+ }
+
+ GST_DEBUG_OBJECT(self, "stream started");
+
+ io_error = gst_avdtp_sink_audioservice_expect(self, &ind->h,
+ BT_STREAMFD_IND);
+ if (io_error != G_IO_ERROR_NONE) {
+ GST_ERROR_OBJECT(self, "Error while receiving "
+ "stream filedescriptor");
+ return FALSE;
+ }
+
+ if (!gst_avdtp_sink_conf_recv_stream_fd(self))
+ return FALSE;
+
+ return TRUE;
+}
+
+static gboolean gst_avdtp_sink_init_mp3_pkt_conf(
+ GstAvdtpSink *self, GstCaps *caps,
+ mpeg_capabilities_t *pkt)
+{
+ const GValue *value = NULL;
+ gint rate, layer;
+ GstStructure *structure = gst_caps_get_structure(caps, 0);
+
+ /* layer */
+ value = gst_structure_get_value(structure, "layer");
+ layer = g_value_get_int(value);
+ if (layer == 1)
+ pkt->layer = BT_MPEG_LAYER_1;
+ else if (layer == 2)
+ pkt->layer = BT_MPEG_LAYER_2;
+ else if (layer == 3)
+ pkt->layer = BT_MPEG_LAYER_3;
+ else {
+ GST_ERROR_OBJECT(self, "Unexpected layer: %d", layer);
+ return FALSE;
+ }
+
+ /* crc */
+ if (self->mp3_using_crc != -1)
+ pkt->crc = self->mp3_using_crc;
+ else {
+ GST_ERROR_OBJECT(self, "No info about crc was received, "
+ " can't proceed");
+ return FALSE;
+ }
+
+ /* channel mode */
+ if (self->channel_mode != -1)
+ pkt->channel_mode = self->channel_mode;
+ else {
+ GST_ERROR_OBJECT(self, "No info about channel mode "
+ "received, can't proceed");
+ return FALSE;
+ }
+
+ /* mpf - we will only use the mandatory one */
+ pkt->mpf = 0;
+
+ value = gst_structure_get_value(structure, "rate");
+ rate = g_value_get_int(value);
+ if (rate == 44100)
+ pkt->frequency = BT_MPEG_SAMPLING_FREQ_44100;
+ else if (rate == 48000)
+ pkt->frequency = BT_MPEG_SAMPLING_FREQ_48000;
+ else if (rate == 32000)
+ pkt->frequency = BT_MPEG_SAMPLING_FREQ_32000;
+ else if (rate == 24000)
+ pkt->frequency = BT_MPEG_SAMPLING_FREQ_24000;
+ else if (rate == 22050)
+ pkt->frequency = BT_MPEG_SAMPLING_FREQ_22050;
+ else if (rate == 16000)
+ pkt->frequency = BT_MPEG_SAMPLING_FREQ_16000;
+ else {
+ GST_ERROR_OBJECT(self, "Invalid rate while setting caps");
+ return FALSE;
+ }
+
+ /* vbr - we always say its vbr, we don't have how to know it */
+ pkt->bitrate = 0x8000;
+
+ /* bitrate - we don't set anything, its vbr */
+ /* FIXME - is this right? */
+
+ return TRUE;
+}
+
+static gboolean gst_avdtp_sink_configure(GstAvdtpSink *self,
+ GstCaps *caps)
+{
+ gchar buf[BT_AUDIO_IPC_PACKET_SIZE];
+ struct bt_setconfiguration_req *req = (void *) buf;
+ struct bt_setconfiguration_rsp *rsp = (void *) buf;
+ gboolean ret;
+ GIOError io_error;
+ gchar *temp;
+ GstStructure *structure;
+
+ temp = gst_caps_to_string(caps);
+ GST_DEBUG_OBJECT(self, "configuring device with caps: %s", temp);
+ g_free(temp);
+
+ memset (req, 0, sizeof(buf));
+ req->h.msg_type = BT_SETCONFIGURATION_REQ;
+ req->access_mode = BT_CAPABILITIES_ACCESS_MODE_WRITE;
+ strncpy(req->device, self->device, 18);
+ structure = gst_caps_get_structure(caps, 0);
+
+ if (gst_structure_has_name(structure, "audio/x-sbc"))
+ ret = gst_avdtp_sink_init_pkt_conf(self, caps,
+ &req->sbc_capabilities);
+ else if (gst_structure_has_name(structure, "audio/mpeg"))
+ ret = gst_avdtp_sink_init_mp3_pkt_conf(self, caps,
+ &req->mpeg_capabilities);
+ else
+ ret = FALSE;
+
+ if (!ret) {
+ GST_ERROR_OBJECT(self, "Couldn't parse caps "
+ "to packet configuration");
+ return FALSE;
+ }
+
+ io_error = gst_avdtp_sink_audioservice_send(self, &req->h);
+ if (io_error != G_IO_ERROR_NONE) {
+ GST_ERROR_OBJECT(self, "Error ocurred while sending "
+ "configurarion packet");
+ return FALSE;
+ }
+
+ GST_DEBUG_OBJECT(self, "configuration packet sent");
+
+ io_error = gst_avdtp_sink_audioservice_expect(self,
+ &rsp->rsp_h.msg_h, BT_SETCONFIGURATION_RSP);
+ if (io_error != G_IO_ERROR_NONE) {
+ GST_ERROR_OBJECT(self, "Error while receiving device "
+ "confirmation");
+ return FALSE;
+ }
+
+ if (rsp->rsp_h.posix_errno != 0) {
+ GST_ERROR_OBJECT(self, "BT_SETCONFIGURATION_RSP failed : "
+ "%s(%d)",
+ strerror(rsp->rsp_h.posix_errno),
+ rsp->rsp_h.posix_errno);
+ return FALSE;
+ }
+
+ self->data->link_mtu = rsp->link_mtu;
+ GST_DEBUG_OBJECT(self, "configuration set");
+
+ return TRUE;
+}
+
+static GstFlowReturn gst_avdtp_sink_preroll(GstBaseSink *basesink,
+ GstBuffer *buffer)
+{
+ GstAvdtpSink *sink = GST_AVDTP_SINK(basesink);
+ gboolean ret;
+
+ GST_AVDTP_SINK_MUTEX_LOCK(sink);
+
+ ret = gst_avdtp_sink_stream_start(sink);
+
+ GST_AVDTP_SINK_MUTEX_UNLOCK(sink);
+
+ if (!ret)
+ return GST_FLOW_ERROR;
+
+ return GST_FLOW_OK;
+}
+
+static GstFlowReturn gst_avdtp_sink_render(GstBaseSink *basesink,
+ GstBuffer *buffer)
+{
+ GstAvdtpSink *self = GST_AVDTP_SINK(basesink);
+ gsize ret;
+ GIOError err;
+
+ err = g_io_channel_write(self->stream, (gchar*)GST_BUFFER_DATA(buffer),
+ (gsize)(GST_BUFFER_SIZE(buffer)), &ret);
+
+ if (err != G_IO_ERROR_NONE) {
+ GST_ERROR_OBJECT(self, "Error while writting to socket: %d %s",
+ errno, strerror(errno));
+ return GST_FLOW_ERROR;
+ }
+
+ return GST_FLOW_OK;
+}
+
+static gboolean gst_avdtp_sink_unlock(GstBaseSink *basesink)
+{
+ GstAvdtpSink *self = GST_AVDTP_SINK(basesink);
+
+ if (self->stream != NULL)
+ g_io_channel_flush (self->stream, NULL);
+
+ return TRUE;
+}
+
+static GstFlowReturn gst_avdtp_sink_buffer_alloc(GstBaseSink *basesink,
+ guint64 offset, guint size, GstCaps* caps,
+ GstBuffer **buf)
+{
+ GstAvdtpSink *self = GST_AVDTP_SINK(basesink);
+
+ *buf = gst_buffer_new_and_alloc(size);
+ if (!(*buf)) {
+ GST_ERROR_OBJECT(self, "buffer allocation failed");
+ return GST_FLOW_ERROR;
+ }
+
+ gst_buffer_set_caps(*buf, caps);
+
+ GST_BUFFER_OFFSET(*buf) = offset;
+
+ return GST_FLOW_OK;
+}
+
+static void gst_avdtp_sink_class_init(GstAvdtpSinkClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS(klass);
+ GstBaseSinkClass *basesink_class = GST_BASE_SINK_CLASS(klass);
+
+ parent_class = g_type_class_peek_parent(klass);
+
+ object_class->finalize = GST_DEBUG_FUNCPTR(
+ gst_avdtp_sink_finalize);
+ object_class->set_property = GST_DEBUG_FUNCPTR(
+ gst_avdtp_sink_set_property);
+ object_class->get_property = GST_DEBUG_FUNCPTR(
+ gst_avdtp_sink_get_property);
+
+ basesink_class->start = GST_DEBUG_FUNCPTR(gst_avdtp_sink_start);
+ basesink_class->stop = GST_DEBUG_FUNCPTR(gst_avdtp_sink_stop);
+ basesink_class->render = GST_DEBUG_FUNCPTR(
+ gst_avdtp_sink_render);
+ basesink_class->preroll = GST_DEBUG_FUNCPTR(
+ gst_avdtp_sink_preroll);
+ basesink_class->unlock = GST_DEBUG_FUNCPTR(
+ gst_avdtp_sink_unlock);
+ basesink_class->event = GST_DEBUG_FUNCPTR(
+ gst_avdtp_sink_event);
+
+ basesink_class->buffer_alloc =
+ GST_DEBUG_FUNCPTR(gst_avdtp_sink_buffer_alloc);
+
+ g_object_class_install_property(object_class, PROP_DEVICE,
+ g_param_spec_string("device", "Device",
+ "Bluetooth remote device address",
+ NULL, G_PARAM_READWRITE));
+
+ GST_DEBUG_CATEGORY_INIT(avdtp_sink_debug, "a2dpsendersink", 0,
+ "A2DP sink element");
+}
+
+static void gst_avdtp_sink_init(GstAvdtpSink *self,
+ GstAvdtpSinkClass *klass)
+{
+ self->device = NULL;
+ self->data = NULL;
+
+ self->stream = NULL;
+
+ self->dev_caps = NULL;
+
+ self->sink_lock = g_mutex_new();
+}
+
+static GIOError gst_avdtp_sink_audioservice_send(
+ GstAvdtpSink *self,
+ const bt_audio_msg_header_t *msg)
+{
+ GIOError error;
+ gsize written;
+
+ error = g_io_channel_write(self->server, (const gchar*) msg,
+ BT_AUDIO_IPC_PACKET_SIZE, &written);
+ if (error != G_IO_ERROR_NONE)
+ GST_ERROR_OBJECT(self, "Error sending data to audio service:"
+ " %s(%d)", strerror(errno), errno);
+
+ return error;
+}
+
+static GIOError gst_avdtp_sink_audioservice_recv(
+ GstAvdtpSink *self,
+ bt_audio_msg_header_t *inmsg)
+{
+ GIOError status;
+ gsize bytes_read;
+ const char *type;
+
+ status = g_io_channel_read(self->server, (gchar*) inmsg,
+ BT_AUDIO_IPC_PACKET_SIZE, &bytes_read);
+ if (status != G_IO_ERROR_NONE) {
+ GST_ERROR_OBJECT(self, "Error receiving data from "
+ "audio service");
+ return status;
+ }
+
+ type = bt_audio_strmsg(inmsg->msg_type);
+ if (!type) {
+ status = G_IO_ERROR_INVAL;
+ GST_ERROR_OBJECT(self, "Bogus message type %d "
+ "received from audio service",
+ inmsg->msg_type);
+ }
+
+ return status;
+}
+
+static GIOError gst_avdtp_sink_audioservice_expect(
+ GstAvdtpSink *self, bt_audio_msg_header_t *outmsg,
+ int expected_type)
+{
+ GIOError status;
+
+ status = gst_avdtp_sink_audioservice_recv(self, outmsg);
+ if (status != G_IO_ERROR_NONE)
+ return status;
+
+ if (outmsg->msg_type != expected_type)
+ status = G_IO_ERROR_INVAL;
+
+ return status;
+}
+
+gboolean gst_avdtp_sink_plugin_init (GstPlugin * plugin)
+{
+ return gst_element_register (plugin, "avdtpsink",
+ GST_RANK_NONE, GST_TYPE_AVDTP_SINK);
+}
+
+
+/* public functions */
+GstCaps *gst_avdtp_sink_get_device_caps(GstAvdtpSink *sink)
+{
+ if (sink->dev_caps == NULL)
+ return NULL;
+
+ return gst_caps_copy(sink->dev_caps);
+}
+
+gboolean gst_avdtp_sink_set_device_caps(GstAvdtpSink *self,
+ GstCaps *caps)
+{
+ gboolean ret;
+
+ GST_DEBUG_OBJECT(self, "setting device caps");
+ GST_AVDTP_SINK_MUTEX_LOCK(self);
+ ret = gst_avdtp_sink_configure(self, caps);
+
+ if (self->stream_caps)
+ gst_caps_unref(self->stream_caps);
+ self->stream_caps = gst_caps_ref(caps);
+
+ GST_AVDTP_SINK_MUTEX_UNLOCK(self);
+
+ return ret;
+}
+
+guint gst_avdtp_sink_get_link_mtu(GstAvdtpSink *sink)
+{
+ return sink->data->link_mtu;
+}
+
+void gst_avdtp_sink_set_device(GstAvdtpSink *self, const gchar* dev)
+{
+ if (self->device != NULL)
+ g_free(self->device);
+
+ GST_LOG_OBJECT(self, "Setting device: %s", dev);
+ self->device = g_strdup(dev);
+}
+
+gchar *gst_avdtp_sink_get_device(GstAvdtpSink *self)
+{
+ return g_strdup(self->device);
+}
+
+void gst_avdtp_sink_set_crc(GstAvdtpSink *self, gboolean crc)
+{
+ gint new_crc;
+
+ new_crc = crc ? CRC_PROTECTED : CRC_UNPROTECTED;
+
+ /* test if we already received a different crc */
+ if (self->mp3_using_crc != -1 && new_crc != self->mp3_using_crc) {
+ GST_ERROR_OBJECT(self, "crc changed during stream");
+ /* FIXME test this, its not being used anywhere */
+ self->mpeg_stream_changed = TRUE;
+ return;
+ }
+ self->mp3_using_crc = new_crc;
+
+}
+
+void gst_avdtp_sink_set_channel_mode(GstAvdtpSink *self,
+ const gchar *mode)
+{
+ gint new_mode;
+
+ new_mode = gst_avdtp_sink_get_channel_mode(mode);
+
+ if (self->channel_mode != -1 && new_mode != self->channel_mode) {
+ GST_ERROR_OBJECT(self, "channel mode changed during stream");
+ self->mpeg_stream_changed = TRUE;
+ }
+
+ self->channel_mode = new_mode;
+ if (self->channel_mode == -1)
+ GST_WARNING_OBJECT(self, "Received invalid channel "
+ "mode: %s", mode);
+}
+
+