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/*
The mediastreamer library aims at providing modular media processing and I/O
for linphone, but also for any telephony application.
Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.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 Street, Fifth Floor, Boston, MA 02111-1307 USA
*/
#ifndef MSCODEC_H
#define MSCODEC_H
#include "msfilter.h"
struct _MSCodecInfo
{
MSFilterInfo info;
MSFilterNewFunc encoder;
MSFilterNewFunc decoder;
gint fr_size; /* size in char of the uncompressed frame */
gint dt_size; /* size in char of the compressed frame */
gint bitrate; /* the minimum bit rate in bits/second */
gint rate; /*frequency */
gint pt; /* the payload type number associated with this codec*/
gchar *description; /* a rtpmap field to describe the codec */
guint is_usable:1; /* linphone set this flag to remember if it can use this codec considering the total bandwidth*/
guint is_selected:1; /* linphone (user) set this flag if he allows this codec to be used*/
};
typedef struct _MSCodecInfo MSCodecInfo;
MSFilter * ms_encoder_new(gchar *name);
MSFilter * ms_decoder_new(gchar *name);
MSFilter * ms_encoder_new_with_pt(gint pt);
MSFilter * ms_decoder_new_with_pt(gint pt);
MSFilter * ms_encoder_new_with_string_id(gchar *id);
MSFilter * ms_decoder_new_with_string_id(gchar *id);
/* return 0 if codec can be used with bandwidth, -1 else*/
int ms_codec_is_usable(MSCodecInfo *codec,double bandwidth);
GList * ms_codec_get_all_audio();
GList * ms_codec_get_all_video();
MSCodecInfo * ms_audio_codec_info_get(gchar *name);
MSCodecInfo * ms_video_codec_info_get(gchar *name);
/* register all statically linked codecs */
void ms_codec_register_all();
#define MS_CODEC_INFO(codinfo) ((MSCodecInfo*)codinfo)
#endif
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