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53 lines
2.2 KiB

--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -2380,6 +2380,8 @@ static int sdp_read_header(AVFormatContext *s)
int size, i, err;
char *content;
char url[MAX_URL_SIZE];
+ const char *p, *sp="", *sources="", *sp2, *sources2;
+ char sources_buf[1024];
if (!ff_network_init())
return AVERROR(EIO);
@@ -2408,6 +2410,16 @@ static int sdp_read_header(AVFormatContext *s)
av_freep(&content);
if (err) goto fail;
+ /* Search for sources= tag in original URL for rtp protocol only */
+ if (strncmp(s->url, "rtp://", 6) == 0) {
+ p = strchr(s->url, '?');
+ if (p && av_find_info_tag(sources_buf, sizeof(sources_buf), "sources", p)) {
+ /* av_log(s, AV_LOG_VERBOSE, "sdp_read_header found sources %s\n", sources_buf); */
+ sp = sources_buf;
+ sources = "&sources=";
+ }
+ }
+
/* open each RTP stream */
for (i = 0; i < rt->nb_rtsp_streams; i++) {
char namebuf[50];
@@ -2425,12 +2437,22 @@ static int sdp_read_header(AVFormatContext *s)
av_dict_free(&opts);
goto fail;
}
+
+ /* Prepare to add sources to the url to be opened.
+ Otherwise the join to the source specific muliticast will be missing */
+ sources2 = sources;
+ sp2 = sp;
+ /* ignore sources from original URL, when sources are already set in rtsp_st */
+ if (rtsp_st->nb_include_source_addrs > 0)
+ sources2 = sp2 = "";
+
ff_url_join(url, sizeof(url), "rtp", NULL,
namebuf, rtsp_st->sdp_port,
- "?localport=%d&ttl=%d&connect=%d&write_to_source=%d",
+ "?localport=%d&ttl=%d&connect=%d&write_to_source=%d%s%s",
rtsp_st->sdp_port, rtsp_st->sdp_ttl,
rt->rtsp_flags & RTSP_FLAG_FILTER_SRC ? 1 : 0,
- rt->rtsp_flags & RTSP_FLAG_RTCP_TO_SOURCE ? 1 : 0);
+ rt->rtsp_flags & RTSP_FLAG_RTCP_TO_SOURCE ? 1 : 0,
+ sources2, sp2);
append_source_addrs(url, sizeof(url), "sources",
rtsp_st->nb_include_source_addrs,