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media: Add experimental support for RTCP feedback.

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This change adds experimental support for providing RTCP
feedback information to codec modules so they can dynamically
change themselves based on conditions.

ASTERISK-26584

Change-Id: Ifd6aa77fb4a7ff546c6025900fc2baf332c31857
This commit is contained in:
Lorenzo Miniero
2016-11-29 16:31:21 +01:00
parent 31268e0a28
commit 1061539b75
9 changed files with 151 additions and 2 deletions
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23
res/res_rtp_asterisk.c
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@@ -4320,6 +4320,29 @@ static struct ast_frame *ast_rtcp_read(struct ast_rtp_instance *instance)
rtcp_report,
message_blob);
ast_json_unref(message_blob);
/* Return an AST_FRAME_RTCP frame with the ast_rtp_rtcp_report
* object as a its data */
rtp->f.frametype = AST_FRAME_RTCP;
rtp->f.data.ptr = rtp->rawdata + AST_FRIENDLY_OFFSET;
memcpy(rtp->f.data.ptr, rtcp_report, sizeof(struct ast_rtp_rtcp_report));
rtp->f.datalen = sizeof(struct ast_rtp_rtcp_report);
if (rc > 0) {
/* There's always a single report block stored, here */
struct ast_rtp_rtcp_report *rtcp_report2;
report_block = rtp->f.data.ptr + rtp->f.datalen + sizeof(struct ast_rtp_rtcp_report_block *);
memcpy(report_block, rtcp_report->report_block[report_counter-1], sizeof(struct ast_rtp_rtcp_report_block));
rtcp_report2 = (struct ast_rtp_rtcp_report *)rtp->f.data.ptr;
rtcp_report2->report_block[report_counter-1] = report_block;
rtp->f.datalen += sizeof(struct ast_rtp_rtcp_report_block);
}
rtp->f.offset = AST_FRIENDLY_OFFSET;
rtp->f.samples = 0;
rtp->f.mallocd = 0;
rtp->f.delivery.tv_sec = 0;
rtp->f.delivery.tv_usec = 0;
rtp->f.src = "RTP";
f = &rtp->f;
break;
case RTCP_PT_FUR:
/* Handle RTCP FIR as FUR */