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srtpdec: Simplify checking the unprotect error

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Introduce an err label to jump to. Avoid logging two warnings per
failure.
This commit is contained in:
Jan Alexander Steffens (heftig) 2019-03-15 11:13:14 +01:00
parent 34eaeb17f2
commit 24b0e3e55f
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GPG key ID: DE5E0C5F25941CA5
1 changed files with 33 additions and 34 deletions
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67
ext/srtp/gstsrtpdec.c
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@ -1382,48 +1382,47 @@ unprotect:
#endif
}
if (err != srtp_err_status_ok) {
GST_WARNING_OBJECT (pad,
"Unable to unprotect buffer (unprotect failed code %d)", err);
/* Signal user depending on type of error */
switch (err) {
case srtp_err_status_key_expired:
/* Update stream */
if (find_stream_by_ssrc (filter, ssrc)) {
GST_OBJECT_UNLOCK (filter);
if (request_key_with_signal (filter, ssrc, SIGNAL_HARD_LIMIT)) {
GST_OBJECT_LOCK (filter);
goto unprotect;
} else {
GST_OBJECT_LOCK (filter);
GST_WARNING_OBJECT (filter, "Hard limit reached, no new key, "
"dropping");
}
/* Signal user depending on type of error */
switch (err) {
case srtp_err_status_ok:
/* success! */
break;
case srtp_err_status_key_expired:
/* Update stream */
if (find_stream_by_ssrc (filter, ssrc)) {
GST_OBJECT_UNLOCK (filter);
if (request_key_with_signal (filter, ssrc, SIGNAL_HARD_LIMIT)) {
GST_OBJECT_LOCK (filter);
goto unprotect;
} else {
GST_WARNING_OBJECT (filter, "Could not find matching stream, "
GST_OBJECT_LOCK (filter);
GST_WARNING_OBJECT (filter, "Hard limit reached, no new key, "
"dropping");
}
break;
case srtp_err_status_auth_fail:
GST_WARNING_OBJECT (filter, "Error authentication packet, dropping");
break;
case srtp_err_status_cipher_fail:
GST_WARNING_OBJECT (filter, "Error while decrypting packet, dropping");
break;
default:
GST_WARNING_OBJECT (filter, "Other error, dropping");
break;
}
gst_buffer_unmap (buf, &map);
return FALSE;
} else {
GST_WARNING_OBJECT (filter, "Could not find matching stream, "
"dropping");
}
goto err;
case srtp_err_status_auth_fail:
GST_WARNING_OBJECT (filter, "Error authentication packet, dropping");
goto err;
case srtp_err_status_cipher_fail:
GST_WARNING_OBJECT (filter, "Error while decrypting packet, dropping");
goto err;
default:
GST_WARNING_OBJECT (pad,
"Unable to unprotect buffer (unprotect failed code %d)", err);
goto err;
}
gst_buffer_unmap (buf, &map);
gst_buffer_set_size (buf, size);
return TRUE;
err:
gst_buffer_unmap (buf, &map);
return FALSE;
}
static GstFlowReturn