Fix #8474 Write rtcp port attribute to sdp file when necessary. Signed-off-by: Jun Li <junli1...@gmail.com> --- libavformat/rtpproto.c | 11 +++++++++++ libavformat/rtpproto.h | 2 ++ libavformat/sdp.c | 12 ++++++++++-- 3 files changed, 23 insertions(+), 2 deletions(-)
diff --git a/libavformat/rtpproto.c b/libavformat/rtpproto.c index 1f0a82ac7e..81a39cc3de 100644 --- a/libavformat/rtpproto.c +++ b/libavformat/rtpproto.c @@ -524,6 +524,17 @@ int ff_rtp_get_local_rtp_port(URLContext *h) return ff_udp_get_local_port(s->rtp_hd); } +/** + * Return the remote rtcp port used by the RTP connection + * @param h media file context + * @return the remote port number + */ +int ff_rtp_get_remote_rtcp_port(URLContext *h) +{ + RTPContext *s = h->priv_data; + return s->rtcp_port; +} + /** * Return the local rtcp port used by the RTP connection * @param h media file context diff --git a/libavformat/rtpproto.h b/libavformat/rtpproto.h index 131aac5f3c..d42327ea5c 100644 --- a/libavformat/rtpproto.h +++ b/libavformat/rtpproto.h @@ -27,4 +27,6 @@ int ff_rtp_set_remote_url(URLContext *h, const char *uri); int ff_rtp_get_local_rtp_port(URLContext *h); +int ff_rtp_get_remote_rtcp_port(URLContext *h); + #endif /* AVFORMAT_RTPPROTO_H */ diff --git a/libavformat/sdp.c b/libavformat/sdp.c index 34e9839b67..c3c2909090 100644 --- a/libavformat/sdp.c +++ b/libavformat/sdp.c @@ -26,11 +26,13 @@ #include "libavutil/opt.h" #include "libavcodec/xiph.h" #include "libavcodec/mpeg4audio.h" +#include "avio_internal.h" #include "avformat.h" #include "internal.h" #include "avc.h" #include "hevc.h" #include "rtp.h" +#include "rtpproto.h" #if CONFIG_NETWORK #include "network.h" #endif @@ -480,10 +482,16 @@ static char *latm_context2config(AVFormatContext *s, AVCodecParameters *par) return config; } -static char *sdp_write_media_attributes(char *buff, int size, AVStream *st, int payload_type, AVFormatContext *fmt) +static char *sdp_write_media_attributes(char *buff, int size, AVStream *st, int payload_type, AVFormatContext *fmt, int port) { char *config = NULL; AVCodecParameters *p = st->codecpar; + URLContext* url_ctx = ffio_geturlcontext(fmt->pb); + if (url_ctx) { + int rtcp_port = ff_rtp_get_remote_rtcp_port(url_ctx); + if (rtcp_port > 0 && rtcp_port != port+1) + av_strlcatf(buff, size, "a=rtcp:%d\r\n", rtcp_port); + } switch (p->codec_id) { case AV_CODEC_ID_DIRAC: @@ -766,7 +774,7 @@ void ff_sdp_write_media(char *buff, int size, AVStream *st, int idx, av_strlcatf(buff, size, "b=AS:%"PRId64"\r\n", p->bit_rate / 1000); } - sdp_write_media_attributes(buff, size, st, payload_type, fmt); + sdp_write_media_attributes(buff, size, st, payload_type, fmt, port); } int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size) -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".