MT#58716 Move transcoding flag to media

Instead of using transcoding flag `_TRANSCODING`
on the monologue level, we have to use that on the media
level in order to properly reflect the level on which
transocding is being used, and also to be able to selectively
set this for specific media sessions.

Change-Id: I9a25dc7be24f80b2b6ada816448a67933c762d86

daemon/call.c

@@ -227,7 +227,7 @@ next:
 			media_update_stats(media);
 			ssrc_collect_metrics(media);
 		}
-		if (ML_ISSET(media->monologue, TRANSCODING))
+		if (MEDIA_ISSET(media, TRANSCODING))
 			hlp->transcoded_media++;
 	}
 
@@ -2795,10 +2795,10 @@ static void media_update_transcoding_flag(struct call_media *media) {
 	if (!media)
 		return;
 
-	ML_CLEAR(media->monologue, TRANSCODING);
+	MEDIA_CLEAR(media, TRANSCODING);
 
 	if (t_queue_find_custom(&media->media_subscribers, NULL, __sub_is_transcoding))
-		ML_SET(media->monologue, TRANSCODING);
+		MEDIA_SET(media, TRANSCODING);
 }
 
 /* called with call->master_lock held in W */

daemon/media_socket.c

@@ -1490,7 +1490,7 @@ static const char *kernelize_one(struct rtpengine_target_info *reti, GQueue *out
 
 	if (proto_is_rtp(media->protocol)) {
 		reti->rtp = 1;
-		if (!ML_ISSET(media->monologue, TRANSCODING)) {
+		if (!MEDIA_ISSET(media, TRANSCODING)) {
 			reti->rtcp_fw = 1;
 			if (media->protocol->avpf)
 				reti->rtcp_fb_fw = 1;

include/call.h

@@ -190,6 +190,7 @@ enum {
 #define MEDIA_FLAG_AUDIO_PLAYER			0x80000000
 #define MEDIA_FLAG_LEGACY_OSRTP			SHARED_FLAG_LEGACY_OSRTP
 #define MEDIA_FLAG_LEGACY_OSRTP_REV		SHARED_FLAG_LEGACY_OSRTP_REV
+#define MEDIA_FLAG_TRANSCODING			0x100000000LL
 
 /* struct call_monologue */
 #define ML_FLAG_REC_FORWARDING			0x00010000
@@ -197,7 +198,7 @@ enum {
 #define ML_FLAG_DTMF_INJECTION_ACTIVE		0x00040000
 #define ML_FLAG_DETECT_DTMF			0x00080000
 #define ML_FLAG_NO_RECORDING			0x00100000
-#define ML_FLAG_TRANSCODING			0x00200000
+/* unused					0x00200000 */
 #define ML_FLAG_BLOCK_SHORT			0x00400000
 #define ML_FLAG_BLOCK_MEDIA			0x00800000
 #define ML_FLAG_SILENCE_MEDIA			0x01000000

t/test-transcode.c

@@ -257,7 +257,7 @@ static void __packet_seq_ts(const char *file, int line, struct call_media *media
 		.sfd = &sfd,
 	};
 	// from __stream_ssrc()
-	if (!ML_ISSET(media->monologue, TRANSCODING))
+	if (!MEDIA_ISSET(media, TRANSCODING))
 		mp.ssrc_in->ssrc_map_out = ntohl(ssrc);
 	mp.ssrc_out = get_ssrc_ctx(mp.ssrc_in->ssrc_map_out, other_media->monologue->ssrc_hash, SSRC_DIR_OUTPUT, NULL);
 	payload_tracker_add(&mp.ssrc_in->tracker, pt_in & 0x7f);