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Adding spport for T.140 RED - Simple RTP redundancy to prevent packet loss in text stream

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Work sponsored by Omnitor AB, Stockholm, Sweden (http://www.omnitor.se)



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@116237 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Olle Johansson
2008-05-14 13:37:07 +00:00
parent 47bf217ee8
commit bb386c84e7
7 changed files with 295 additions and 14 deletions
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8
include/asterisk/frame.h
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@@ -274,8 +274,12 @@ extern struct ast_frame ast_null_frame;
/*! MPEG4 Video */
#define AST_FORMAT_MP4_VIDEO (1 << 22)
#define AST_FORMAT_VIDEO_MASK (((1 << 25)-1) & ~(AST_FORMAT_AUDIO_MASK))
/*! T.140 Text format - ITU T.140, RFC 4351*/
#define AST_FORMAT_T140 (1 << 25)
/*! T.140 Text format - ITU T.140, RFC 4103 */
#define AST_FORMAT_T140 (1 << 26)
/*! T.140 RED Text format RFC 4103 */
#define AST_FORMAT_T140RED (1 << 27)
/*! Maximum text mask */
#define AST_FORMAT_MAX_TEXT (1 << 28))
#define AST_FORMAT_TEXT_MASK (((1 << 30)-1) & ~(AST_FORMAT_AUDIO_MASK) & ~(AST_FORMAT_VIDEO_MASK))
enum ast_control_frame_type {