[Asterisk-code-review] AST-2019-005 - translate: Don't assume all frames will have a src. (...asterisk[17])

[Friendly Automation]

Hello Joshua Colp,

I'd like you to do a code review. Please visit

    https://gerrit.asterisk.org/c/asterisk/+/12838

to review the following change.


Change subject: AST-2019-005 - translate: Don't assume all frames will have a src.
......................................................................

AST-2019-005 - translate: Don't assume all frames will have a src.

This change removes the assumption that a frame will always have
a src set on it. This assumption is incorrect.

Given a scenario where an RTP packet is received with no payload
the resulting audio frame will have no samples. If this frame goes
through a signed linear translation path an interpolated frame can
be created (if generic packet loss concealment is enabled) that has
minimal data on it, including no src. If this frame is given to a
translation path a crash will occur due to the lack of src.

ASTERISK-28499

Change-Id: I024d10dd98207eb8a6b35b59880bcdf1090538f8
---
M main/translate.c
1 file changed, 1 insertion(+), 1 deletion(-)



  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/38/12838/1

diff --git a/main/translate.c b/main/translate.c
index fe46460..5542107 100644
--- a/main/translate.c
+++ b/main/translate.c
@@ -403,7 +403,7 @@
 
 	if (f->samples == 0) {
 		/* Do not log empty audio frame */
-		if (strcasecmp(f->src, "ast_prod")) {
+		if (!f->src || strcasecmp(f->src, "ast_prod")) {
 			ast_log(LOG_WARNING, "no samples for %s\n", pvt->t->name);
 		}
 	}

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Gerrit-Project: asterisk
Gerrit-Branch: 17
Gerrit-Change-Id: I024d10dd98207eb8a6b35b59880bcdf1090538f8
Gerrit-Change-Number: 12838
Gerrit-PatchSet: 1
Gerrit-Owner: Friendly Automation
Gerrit-Reviewer: Joshua Colp <jcolp at digium.com>
Gerrit-MessageType: newchange
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