141 lines
4.2 KiB
C
141 lines
4.2 KiB
C
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is libguac-client-rdp.
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*
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* The Initial Developer of the Original Code is
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* Michael Jumper.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include <stdlib.h>
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#include <string.h>
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#include <freerdp/constants.h>
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#include <freerdp/types.h>
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#include <freerdp/utils/memory.h>
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#include <freerdp/utils/stream.h>
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#include <freerdp/utils/svc_plugin.h>
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#include <guacamole/client.h>
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#include "audio.h"
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#include "rdpsnd_service.h"
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#include "rdpsnd_messages.h"
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/* Define service, associate with "rdpsnd" channel */
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DEFINE_SVC_PLUGIN(guac_rdpsnd, "rdpsnd",
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CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP)
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/*
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* Service Handlers
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*/
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void guac_rdpsnd_process_connect(rdpSvcPlugin* plugin) {
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/* Get audio stream from plugin */
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audio_stream* audio = (audio_stream*)
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plugin->channel_entry_points.pExtendedData;
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/* Update every 10 ms */
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plugin->interval_ms = 10;
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/* Log that sound has been loaded */
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guac_client_log_info(audio->client, "guac_rdpsnd connected.");
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}
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void guac_rdpsnd_process_terminate(rdpSvcPlugin* plugin) {
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xfree(plugin);
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}
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void guac_rdpsnd_process_event(rdpSvcPlugin* plugin, RDP_EVENT* event) {
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freerdp_event_free(event);
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}
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void guac_rdpsnd_process_receive(rdpSvcPlugin* plugin,
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STREAM* input_stream) {
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guac_rdpsndPlugin* rdpsnd = (guac_rdpsndPlugin*) plugin;
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guac_rdpsnd_pdu_header header;
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/* Get audio stream from plugin */
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audio_stream* audio = (audio_stream*)
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plugin->channel_entry_points.pExtendedData;
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/* Read RDPSND PDU header */
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stream_read_uint8(input_stream, header.message_type);
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stream_seek_uint8(input_stream);
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stream_read_uint16(input_stream, header.body_size);
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/*
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* If next PDU is SNDWAVE (due to receiving WaveInfo PDU previously),
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* ignore the header and parse as a Wave PDU.
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*/
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if (rdpsnd->next_pdu_is_wave) {
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guac_rdpsnd_wave_handler(rdpsnd, audio, input_stream, &header);
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return;
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}
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/* Dispatch message to standard handlers */
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switch (header.message_type) {
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/* Server Audio Formats and Version PDU */
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case SNDC_FORMATS:
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guac_rdpsnd_formats_handler(rdpsnd, audio,
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input_stream, &header);
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break;
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/* Training PDU */
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case SNDC_TRAINING:
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guac_rdpsnd_training_handler(rdpsnd, audio,
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input_stream, &header);
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break;
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/* WaveInfo PDU */
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case SNDC_WAVE:
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guac_rdpsnd_wave_info_handler(rdpsnd, audio,
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input_stream, &header);
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break;
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/* Close PDU */
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case SNDC_CLOSE:
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guac_rdpsnd_close_handler(rdpsnd, audio,
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input_stream, &header);
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break;
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}
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}
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