Module: libav Branch: master Commit: 3b2e8d1d216f74eae73409ecc3b48396a932d256
Author: Martin Storsjö <[email protected]> Committer: Martin Storsjö <[email protected]> Date: Fri Apr 3 18:08:07 2009 +0300 rtpenc: Allow including a SDES/CNAME block in RTCP SR packets Signed-off-by: Martin Storsjö <[email protected]> --- libavformat/rtpenc.c | 17 +++++++++++++++++ libavformat/rtpenc.h | 1 + 2 files changed, 18 insertions(+), 0 deletions(-) diff --git a/libavformat/rtpenc.c b/libavformat/rtpenc.c index babb2bb..0f5307d 100644 --- a/libavformat/rtpenc.c +++ b/libavformat/rtpenc.c @@ -34,6 +34,7 @@ static const AVOption options[] = { FF_RTP_FLAG_OPTS(RTPMuxContext, flags), { "payload_type", "Specify RTP payload type", offsetof(RTPMuxContext, payload_type), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, 127, AV_OPT_FLAG_ENCODING_PARAM }, { "ssrc", "Stream identifier", offsetof(RTPMuxContext, ssrc), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM }, + { "cname", "CNAME to include in RTCP SR packets", offsetof(RTPMuxContext, cname), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_ENCODING_PARAM }, { NULL }, }; @@ -271,6 +272,22 @@ static void rtcp_send_sr(AVFormatContext *s1, int64_t ntp_time) avio_wb32(s1->pb, rtp_ts); avio_wb32(s1->pb, s->packet_count); avio_wb32(s1->pb, s->octet_count); + + if (s->cname) { + int len = FFMIN(strlen(s->cname), 255); + avio_w8(s1->pb, (RTP_VERSION << 6) + 1); + avio_w8(s1->pb, RTCP_SDES); + avio_wb16(s1->pb, (7 + len + 3) / 4); /* length in words - 1 */ + + avio_wb32(s1->pb, s->ssrc); + avio_w8(s1->pb, 0x01); /* CNAME */ + avio_w8(s1->pb, len); + avio_write(s1->pb, s->cname, len); + avio_w8(s1->pb, 0); /* END */ + for (len = (7 + len) % 4; len % 4; len++) + avio_w8(s1->pb, 0); + } + avio_flush(s1->pb); } diff --git a/libavformat/rtpenc.h b/libavformat/rtpenc.h index 5fd0b9c..f797348 100644 --- a/libavformat/rtpenc.h +++ b/libavformat/rtpenc.h @@ -30,6 +30,7 @@ struct RTPMuxContext { AVStream *st; int payload_type; uint32_t ssrc; + const char *cname; uint16_t seq; uint32_t timestamp; uint32_t base_timestamp; _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
