| /* |
| 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., 59 Temple Place, Suite 330, 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 |