Make sure the WHIP protocol performs the SDP offer/answer
exchange with the WebRTC peer over HTTP.
Signed-off-by: Steven Liu <l...@chinaffmpeg.org>
---
libavformat/whip.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libavformat/whip.c b/libavformat/whip.c
index ce06a66bc4..b78ad27858 100644
--- a/libavformat/whip.c
+++ b/libavformat/whip.c
@@ -732,10 +732,18 @@ static int exchange_sdp(AVFormatContext *s)
URLContext *whip_uc = NULL;
AVDictionary *opts = NULL;
char *hex_data = NULL;
+ const char *proto_name = avio_find_protocol_name(s->url);
/* To prevent a crash during cleanup, always initialize it. */
av_bprint_init(&bp, 1, MAX_SDP_SIZE);
+ if (!av_strstart(proto_name, "http", NULL)) {
+ av_log(whip, AV_LOG_ERROR, "WHIP: Protocol %s is not supported by RTC,
choose http, url is %s\n",
+ proto_name, s->url);
+ ret = AVERROR(EINVAL);
+ goto end;
+ }
+
if (!whip->sdp_offer || !strlen(whip->sdp_offer)) {
av_log(whip, AV_LOG_ERROR, "WHIP: No offer to exchange\n");
ret = AVERROR(EINVAL);
--
2.39.3 (Apple Git-146)
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