diff options
| author | Olle Johansson <oej@edvina.net> | 2007-02-16 13:35:44 +0000 |
|---|---|---|
| committer | Olle Johansson <oej@edvina.net> | 2007-02-16 13:35:44 +0000 |
| commit | ba32ee49d032edec3a6fc30c97cf6becee110546 (patch) | |
| tree | 896555baaa9bfecc19177b5773ace97b5092f7dc /include/asterisk/channel.h | |
| parent | 84d1cf37fe7bba58f15945fa36d54483883a639e (diff) | |
Adding Realtime Text support (T.140) to Asterisk
T.140/RFC 2793 is a live communication channel, originally
created for IP based text phones for hearing impaired.
Feels very much like the old Unix talk application.
This code is developed and disclaimed by John Martin of Aupix, UK.
Tested for interoperability by myself and Omnitor in Sweden,
the company that wrote most of the specifications.
A big thank you to everyone involved in this.
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@54838 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'include/asterisk/channel.h')
| -rw-r--r-- | include/asterisk/channel.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/asterisk/channel.h b/include/asterisk/channel.h index e9695940b..22a08120c 100644 --- a/include/asterisk/channel.h +++ b/include/asterisk/channel.h @@ -155,7 +155,7 @@ extern "C" { #include "asterisk/compiler.h" -#define AST_MAX_FDS 8 +#define AST_MAX_FDS 10 /* * We have AST_MAX_FDS file descriptors in a channel. * Some of them have a fixed use: @@ -297,6 +297,9 @@ struct ast_channel_tech { /*! \brief Write a frame, in standard format */ int (* const write_video)(struct ast_channel *chan, struct ast_frame *frame); + /*! \brief Write a text frame, in standard format */ + int (* const write_text)(struct ast_channel *chan, struct ast_frame *frame); + /*! \brief Find bridged channel */ struct ast_channel *(* const bridged_channel)(struct ast_channel *chan, struct ast_channel *bridge); @@ -888,6 +891,14 @@ int ast_write(struct ast_channel *chan, struct ast_frame *frame); */ int ast_write_video(struct ast_channel *chan, struct ast_frame *frame); +/*! \brief Write text frame to a channel + * This function writes the given frame to the indicated channel. + * \param chan destination channel of the frame + * \param frame frame that will be written + * \return It returns 1 on success, 0 if not implemented, and -1 on failure. + */ +int ast_write_text(struct ast_channel *chan, struct ast_frame *frame); + /*! \brief Send empty audio to prime a channel driver */ int ast_prod(struct ast_channel *chan); |