117 lines
3.4 KiB
C
117 lines
3.4 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) 2010
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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 <guacamole/protocol.h>
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#include <guacamole/client.h>
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#include <guacamole/stream.h>
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#include "audio.h"
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audio_stream* audio_stream_alloc(guac_client* client, audio_encoder* encoder) {
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/* Allocate stream */
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audio_stream* audio = (audio_stream*) malloc(sizeof(audio_stream));
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audio->client = client;
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/* Reset buffer stats */
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audio->used = 0;
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audio->length = 0x40000;
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/* Allocate buffer */
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audio->pcm_data = malloc(sizeof(int) * audio->length);
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/* Assign encoder */
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audio->encoder = encoder;
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audio->stream = guac_client_alloc_stream(client);
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return audio;
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}
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void audio_stream_begin(audio_stream* audio) {
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audio->encoder->begin_handler(audio);
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}
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void audio_stream_end(audio_stream* audio) {
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audio_stream_flush(audio);
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audio->encoder->end_handler(audio);
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}
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void audio_stream_free(audio_stream* audio) {
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free(audio->pcm_data);
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free(audio);
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}
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void audio_stream_write_pcm(audio_stream* audio, const int* data, int length) {
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/* Resize audio buffer if necessary */
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if (length > audio->length) {
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/* Resize to double provided length */
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audio->length = length*2;
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audio->pcm_data = realloc(audio, sizeof(int) * audio->length);
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}
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/* Flush if necessary */
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if (audio->used + length > audio->length)
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audio_stream_flush(audio);
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/* Append to buffer */
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memcpy(&(audio->pcm_data[audio->used]), data, sizeof(int) * length);
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audio->used += length;
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}
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void audio_stream_flush(audio_stream* audio) {
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/* If data in buffer */
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if (audio->used != 0) {
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/* Write data */
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audio->encoder->write_handler(audio,
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audio->pcm_data, audio->used);
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/* Reset buffer */
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audio->used = 0;
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}
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}
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