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Merge commit '4f56e773fe8a554b8c2662650aaf799c2ece2721'
* commit '4f56e773fe8a554b8c2662650aaf799c2ece2721': x86: ac3: Fix HAVE_MMXEXT condition to only refer to external assembly rtpenc: Start the sequence numbers from a random offset Conflicts: libavformat/version.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
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73b59cc1ba
@ -35,6 +35,7 @@ static const AVOption options[] = {
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{ "payload_type", "Specify RTP payload type", offsetof(RTPMuxContext, payload_type), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, 127, AV_OPT_FLAG_ENCODING_PARAM },
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{ "ssrc", "Stream identifier", offsetof(RTPMuxContext, ssrc), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
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{ "cname", "CNAME to include in RTCP SR packets", offsetof(RTPMuxContext, cname), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_ENCODING_PARAM },
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{ "seq", "Starting sequence number", offsetof(RTPMuxContext, seq), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 65535, AV_OPT_FLAG_ENCODING_PARAM },
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{ NULL },
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};
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@ -124,6 +125,13 @@ static int rtp_write_header(AVFormatContext *s1)
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/* Round the NTP time to whole milliseconds. */
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s->first_rtcp_ntp_time = (s1->start_time_realtime / 1000) * 1000 +
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NTP_OFFSET_US;
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// Pick a random sequence start number, but in the lower end of the
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// available range, so that any wraparound doesn't happen immediately.
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// (Immediate wraparound would be an issue for SRTP.)
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if (s->seq < 0)
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s->seq = av_get_random_seed() & 0x0fff;
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else
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s->seq &= 0xffff; // Use the given parameter, wrapped to the right interval
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if (s1->packet_size) {
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if (s1->pb->max_packet_size)
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@ -309,7 +317,7 @@ void ff_rtp_send_data(AVFormatContext *s1, const uint8_t *buf1, int len, int m)
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avio_write(s1->pb, buf1, len);
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avio_flush(s1->pb);
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s->seq++;
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s->seq = (s->seq + 1) & 0xffff;
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s->octet_count += len;
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s->packet_count++;
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}
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@ -31,7 +31,7 @@ struct RTPMuxContext {
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int payload_type;
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uint32_t ssrc;
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const char *cname;
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uint16_t seq;
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int seq;
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uint32_t timestamp;
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uint32_t base_timestamp;
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uint32_t cur_timestamp;
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@ -31,7 +31,7 @@
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#define LIBAVFORMAT_VERSION_MAJOR 54
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#define LIBAVFORMAT_VERSION_MINOR 61
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#define LIBAVFORMAT_VERSION_MICRO 102
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#define LIBAVFORMAT_VERSION_MICRO 103
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#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
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LIBAVFORMAT_VERSION_MINOR, \
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