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rtpenc: Simplify code by introducing a macro for rescaling NTP timestamps

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Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2013-01-09 18:55:52 +02:00
parent 45dd1ae1b3
commit 2e814d0329
2 changed files with 4 additions and 2 deletions
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3
libavformat/rtp.h
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@ -23,6 +23,7 @@
#include "libavformat/avformat.h"
#include "libavcodec/avcodec.h"
#include "libavutil/mathematics.h"
/**
* Return the payload type for a given stream used in the given format context.
@ -109,4 +110,6 @@ enum RTCPType {
#define RTP_PT_IS_RTCP(x) (((x) >= RTCP_FIR && (x) <= RTCP_IJ) || \
((x) >= RTCP_SR && (x) <= RTCP_TOKEN))
#define NTP_TO_RTP_FORMAT(x) av_rescale((x), INT64_C(1) << 32, 1000000)
#endif /* AVFORMAT_RTP_H */

3
libavformat/rtpenc.c
View File

@ -273,8 +273,7 @@ static void rtcp_send_sr(AVFormatContext *s1, int64_t ntp_time)
avio_w8(s1->pb, RTCP_SR);
avio_wb16(s1->pb, 6); /* length in words - 1 */
avio_wb32(s1->pb, s->ssrc);
avio_wb32(s1->pb, ntp_time / 1000000);
avio_wb32(s1->pb, ((ntp_time % 1000000) << 32) / 1000000);
avio_wb64(s1->pb, NTP_TO_RTP_FORMAT(ntp_time));
avio_wb32(s1->pb, rtp_ts);
avio_wb32(s1->pb, s->packet_count);
avio_wb32(s1->pb, s->octet_count);