audio.h

Go to the documentation of this file.

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is libguac.
 *
 * The Initial Developer of the Original Code is
 * Michael Jumper.
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef __GUAC_AUDIO_H
#define __GUAC_AUDIO_H

#include <guacamole/client.h>
#include <guacamole/stream.h>

typedef struct guac_audio_stream guac_audio_stream;

typedef void guac_audio_encoder_begin_handler(guac_audio_stream* audio);

typedef void guac_audio_encoder_end_handler(guac_audio_stream* audio);

typedef void guac_audio_encoder_write_handler(guac_audio_stream* audio,
        const unsigned char* pcm_data, int length);

typedef struct guac_audio_encoder {

    const char* mimetype;

    guac_audio_encoder_begin_handler* begin_handler;

    guac_audio_encoder_write_handler* write_handler;

    guac_audio_encoder_end_handler* end_handler;

} guac_audio_encoder;

struct guac_audio_stream {

    unsigned char* pcm_data;

    int used;

    int length;

    unsigned char* encoded_data;

    int encoded_data_used;

    int encoded_data_length;

    guac_audio_encoder* encoder;

    guac_client* client;

    guac_stream* stream;

    int rate;

    int channels;

    int bps;

    int pcm_bytes_written;

    void* data;

};

guac_audio_stream* guac_audio_stream_alloc(guac_client* client,
        guac_audio_encoder* encoder);

void guac_audio_stream_free(guac_audio_stream* stream);

void guac_audio_stream_begin(guac_audio_stream* stream, int rate, int channels, int bps);

void guac_audio_stream_end(guac_audio_stream* stream);

void guac_audio_stream_write_pcm(guac_audio_stream* stream,
        const unsigned char* data, int length);

void guac_audio_stream_flush(guac_audio_stream* stream);

void guac_audio_stream_write_encoded(guac_audio_stream* audio,
        const unsigned char* data, int length);

#endif