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rtpengine
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TT#101653 retire always-transcode flag

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Change-Id: I845c4b2f811c2945c9015cdf4570036f3a26b81f
pull/1134/head
Richard Fuchs 5 years ago
parent 336cb5b280
commit 71d02ff486
4 changed files with 48 additions and 39 deletions
Show Stats Download Patch File Download Diff File

23
daemon/call_interfaces.c
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@ -810,8 +810,9 @@ static void call_ng_flags_flags(struct sdp_ng_flags *out, str *s, void *dummy) {
case CSH_LOOKUP("original-sendrecv"):
out->original_sendrecv = 1;
break;
case CSH_LOOKUP("always-transcode"):
out->always_transcode = 1;
case CSH_LOOKUP("always-transcode"):;
static const str str_all = STR_CONST_INIT("all");
call_ng_flags_str_ht(out, (str *) &str_all, &out->codec_accept);
break;
case CSH_LOOKUP("asymmetric-codecs"):
out->asymmetric_codecs = 1;
@ -862,20 +863,20 @@ static void call_ng_flags_flags(struct sdp_ng_flags *out, str *s, void *dummy) {
if (call_ng_flags_prefix(out, s, "codec-mask-", call_ng_flags_str_ht,
&out->codec_mask))
return;
if (call_ng_flags_prefix(out, s, "codec-set-", call_ng_flags_str_ht_split,
&out->codec_set))
return;
if (call_ng_flags_prefix(out, s, "codec-accept-", call_ng_flags_str_ht,
&out->codec_accept))
return;
if (call_ng_flags_prefix(out, s, "codec-consume-", call_ng_flags_str_ht,
&out->codec_consume))
return;
if (call_ng_flags_prefix(out, s, "T38-", ng_t38_option, NULL))
return;
if (call_ng_flags_prefix(out, s, "T.38-", ng_t38_option, NULL))
return;
}
if (call_ng_flags_prefix(out, s, "codec-set-", call_ng_flags_str_ht_split,
&out->codec_set))
return;
if (call_ng_flags_prefix(out, s, "codec-accept-", call_ng_flags_str_ht,
&out->codec_accept))
return;
if (call_ng_flags_prefix(out, s, "codec-consume-", call_ng_flags_str_ht,
&out->codec_consume))
return;
#endif
ilog(LOG_WARN, "Unknown flag encountered: '" STR_FORMAT "'",

24
daemon/codec.c
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@ -523,7 +523,7 @@ static void __check_send_codecs(struct call_media *receiver, struct call_media *
// even if the receiver can receive the same codec that the sink can
// send, we might still have it configured as a transcoder due to
// always-transcode in the offer
// force accepted codec in the offer
struct codec_handler *ch_recv =
g_hash_table_lookup(sink->codec_handlers, GINT_TO_POINTER(recv_pt->payload_type));
if (!ch_recv)
@ -1310,7 +1310,7 @@ void codec_handlers_update(struct call_media *receiver, struct call_media *sink,
// do we need to detect PCM DTMF tones?
int pcm_dtmf_detect = 0;
if ((MEDIA_ISSET(sink, TRANSCODE) || (flags && flags->always_transcode))
if ((MEDIA_ISSET(sink, TRANSCODE) || (sink_transcoding & 0x2))
&& dtmf_payload_type != -1
&& dtmf_pt && (!reverse_dtmf_pt || reverse_dtmf_pt->for_transcoding ||
!g_hash_table_lookup(receiver->codecs_send, &dtmf_payload_type)))
@ -1364,11 +1364,11 @@ void codec_handlers_update(struct call_media *receiver, struct call_media *sink,
GQueue *dest_codecs = NULL;
if (pref_dest_codec->for_transcoding) {
// with always-transcode, we still accept DTMF payloads if possible
// with force accepted codec, we still accept DTMF payloads if possible
if (pt->codec_def && pt->codec_def->supplemental)
dest_codecs = g_hash_table_lookup(sink->codec_names_send, &pt->encoding);
}
else if (!flags || !flags->always_transcode) {
else {
// we ignore output codec matches if we must transcode supp codecs
if ((dtmf_pt_match == 1 || cn_pt_match == 1) && MEDIA_ISSET(sink, TRANSCODE))
;
@ -1377,11 +1377,6 @@ void codec_handlers_update(struct call_media *receiver, struct call_media *sink,
else
dest_codecs = g_hash_table_lookup(sink->codec_names_send, &pt->encoding);
}
else if (flags->always_transcode) {
// with always-transcode, we still accept DTMF payloads if possible
if (pt->codec_def && pt->codec_def->supplemental)
dest_codecs = g_hash_table_lookup(sink->codec_names_send, &pt->encoding);
}
if (dest_codecs) {
// the sink supports this codec - check offered formats
dest_pt = NULL;
@ -3284,7 +3279,7 @@ void codec_rtp_payload_types(struct call_media *media, struct call_media *other_
static const str str_full = STR_CONST_INIT("full");
GHashTable *stripped = g_hash_table_new_full(str_case_hash, str_case_equal, free, __payload_queue_free);
GHashTable *masked = g_hash_table_new_full(str_case_hash, str_case_equal, free, __payload_queue_free);
int strip_all = 0, mask_all = 0, consume_all = 0;
int strip_all = 0, mask_all = 0, consume_all = 0, accept_all = 0;
// start fresh
if (!proto_is_rtp(other_media->protocol) && proto_is_rtp(media->protocol) && flags->opmode == OP_OFFER) {
@ -3317,6 +3312,8 @@ void codec_rtp_payload_types(struct call_media *media, struct call_media *other_
consume_all = 1;
else if (flags->codec_consume && g_hash_table_lookup(flags->codec_consume, &str_full))
consume_all = 2;
if (flags->codec_accept && g_hash_table_lookup(flags->codec_accept, &str_all))
accept_all = 1;
__ht_merge(&flags->codec_except, flags->codec_consume);
__ht_merge(&flags->codec_except, flags->codec_accept);
@ -3350,6 +3347,11 @@ void codec_rtp_payload_types(struct call_media *media, struct call_media *other_
#ifdef WITH_TRANSCODING
codec_touched(pt, media);
#endif
// special case for handling of the legacy always-transcode flag (= accept-all)
// in combination with codec-mask
if (accept_all)
pt->for_transcoding = 1;
GQueue *q = g_hash_table_lookup_queue_new(masked, str_dup(&pt->encoding), free);
g_queue_push_tail(q, __rtp_payload_type_copy(pt));
q = g_hash_table_lookup_queue_new(masked, str_dup(&pt->encoding_with_params), free);
@ -3369,7 +3371,7 @@ void codec_rtp_payload_types(struct call_media *media, struct call_media *other_
g_queue_push_tail(q, __rtp_payload_type_copy(pt));
__rtp_payload_type_add_send(other_media, pt);
}
else if (__codec_ht_except(0, flags->codec_accept, NULL, pt)) {
else if (__codec_ht_except(accept_all, flags->codec_accept, NULL, pt)) {
ilog(LOG_DEBUG, "Accepting codec '" STR_FORMAT "'",
STR_FMT(&pt->encoding_with_params));
#ifdef WITH_TRANSCODING

1
include/call_interfaces.h
Unescape View File

@ -91,7 +91,6 @@ struct sdp_ng_flags {
record_call:1,
loop_protect:1,
original_sendrecv:1,
always_transcode:1,
asymmetric_codecs:1,
symmetric_codecs:1,
single_codec:1,

39
t/transcode-test.c
Unescape View File

@ -39,10 +39,20 @@ static struct call_media *media_A;
static struct call_media *media_B;
struct call_monologue ml_A;
struct call_monologue ml_B;
static GQueue rtp_types;
static GQueue rtp_types = G_QUEUE_INIT;
#define start() __start(__FILE__, __LINE__)
static void __init(void) {
g_queue_clear(&rtp_types);
memset(&flags, 0, sizeof(flags));
flags.codec_strip = g_hash_table_new_full(str_case_hash, str_case_equal, free, NULL);
flags.codec_mask = g_hash_table_new_full(str_case_hash, str_case_equal, free, NULL);
flags.codec_except = g_hash_table_new_full(str_case_hash, str_case_equal, free, NULL);
flags.codec_set = g_hash_table_new_full(str_case_hash, str_case_equal, free, free);
flags.codec_consume = g_hash_table_new_full(str_case_hash, str_case_equal, free, NULL);
flags.codec_accept = g_hash_table_new_full(str_case_hash, str_case_equal, free, NULL);
}
static void __start(const char *file, int line) {
printf("running test %s:%i\n", file, line);
rtp_ts_ht = g_hash_table_new(g_direct_hash, g_direct_equal);
@ -53,7 +63,6 @@ static void __start(const char *file, int line) {
call.ssrc_hash = create_ssrc_hash_call();
call.tags = g_hash_table_new(g_str_hash, g_str_equal);
str_init(&call.callid, "test-call");
flags = (struct sdp_ng_flags) {0,};
bencode_buffer_init(&call.buffer);
media_A = call_media_new(&call); // originator
media_B = call_media_new(&call); // output destination
@ -65,13 +74,7 @@ static void __start(const char *file, int line) {
str_init(&ml_B.tag, "tag_B");
media_B->monologue = &ml_B;
media_B->protocol = &transport_protocols[PROTO_RTP_AVP];
g_queue_init(&rtp_types); // parsed from received SDP
flags.codec_strip = g_hash_table_new_full(str_case_hash, str_case_equal, free, NULL);
flags.codec_mask = g_hash_table_new_full(str_case_hash, str_case_equal, free, NULL);
flags.codec_except = g_hash_table_new_full(str_case_hash, str_case_equal, free, NULL);
flags.codec_set = g_hash_table_new_full(str_case_hash, str_case_equal, free, free);
flags.codec_consume = g_hash_table_new_full(str_case_hash, str_case_equal, free, NULL);
flags.codec_accept = g_hash_table_new_full(str_case_hash, str_case_equal, free, NULL);
__init();
}
#define transcode(codec) g_queue_push_tail(&flags.codec_transcode, sdup(#codec))
@ -94,6 +97,12 @@ static void codec_set(char *c) {
}
#endif
static void __ht_set(GHashTable *h, char *x) {
str *d = sdup(x);
g_hash_table_insert(h, d, d);
}
#define ht_set(ht, s) __ht_set(flags.ht, #s)
#define sdp_pt_fmt(num, codec, clockrate, fmt) \
__sdp_pt_fmt(num, (str) STR_CONST_INIT(#codec), clockrate, (str) STR_CONST_INIT(#codec "/" #clockrate), \
(str) STR_CONST_INIT(fmt))
@ -114,8 +123,7 @@ static void offer(void) {
codec_rtp_payload_types(media_B, media_A, &rtp_types, &flags);
codec_handlers_update(media_B, media_A, &flags, NULL);
codec_tracker_finish(media_B);
g_queue_clear(&rtp_types);
memset(&flags, 0, sizeof(flags));
__init();
}
static void answer(void) {
@ -125,8 +133,7 @@ static void answer(void) {
codec_rtp_payload_types(media_A, media_B, &rtp_types, &flags);
codec_handlers_update(media_A, media_B, &flags, NULL);
codec_tracker_finish(media_A);
g_queue_clear(&rtp_types);
memset(&flags, 0, sizeof(flags));
__init();
}
#define expect(side, dir, codecs) \
@ -412,7 +419,7 @@ int main(void) {
// plain with two offered and two answered + always-transcode one way
start();
flags.always_transcode = 1;
ht_set(codec_accept, all);
sdp_pt(0, PCMU, 8000);
sdp_pt(8, PCMA, 8000);
offer();
@ -435,7 +442,7 @@ int main(void) {
// plain with two offered and two answered + always-transcode both ways
start();
flags.always_transcode = 1;
ht_set(codec_accept, all);
sdp_pt(0, PCMU, 8000);
sdp_pt(8, PCMA, 8000);
offer();
@ -443,7 +450,7 @@ int main(void) {
expect(A, send, "0/PCMU/8000 8/PCMA/8000");
expect(B, recv, "0/PCMU/8000 8/PCMA/8000");
expect(B, send, "");
flags.always_transcode = 1;
ht_set(codec_accept, all);
sdp_pt(0, PCMU, 8000);
sdp_pt(8, PCMA, 8000);
answer();

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