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-rw-r--r--libavformat/rtmppkt.c12
-rw-r--r--libavformat/rtmppkt.h3
2 files changed, 10 insertions, 5 deletions
diff --git a/libavformat/rtmppkt.c b/libavformat/rtmppkt.c
index b48493ba11..2eab1c13df 100644
--- a/libavformat/rtmppkt.c
+++ b/libavformat/rtmppkt.c
@@ -93,7 +93,7 @@ int ff_rtmp_packet_read(URLContext *h, RTMPPacket *p,
hdr >>= 6;
if (hdr == RTMP_PS_ONEBYTE) {
- timestamp = prev_pkt[channel_id].timestamp;
+ timestamp = prev_pkt[channel_id].ts_delta;
} else {
if (url_read_complete(h, buf, 3) != 3)
return AVERROR(EIO);
@@ -116,9 +116,10 @@ int ff_rtmp_packet_read(URLContext *h, RTMPPacket *p,
return AVERROR(EIO);
timestamp = AV_RB32(buf);
}
- if (hdr != RTMP_PS_TWELVEBYTES)
- timestamp += prev_pkt[channel_id].timestamp;
}
+ if (hdr != RTMP_PS_TWELVEBYTES)
+ timestamp += prev_pkt[channel_id].timestamp;
+
if (ff_rtmp_packet_create(p, channel_id, type, timestamp, data_size))
return -1;
p->extra = extra;
@@ -126,6 +127,7 @@ int ff_rtmp_packet_read(URLContext *h, RTMPPacket *p,
prev_pkt[channel_id].channel_id = channel_id;
prev_pkt[channel_id].type = type;
prev_pkt[channel_id].data_size = data_size;
+ prev_pkt[channel_id].ts_delta = timestamp - prev_pkt[channel_id].timestamp;
prev_pkt[channel_id].timestamp = timestamp;
prev_pkt[channel_id].extra = extra;
while (data_size > 0) {
@@ -151,6 +153,7 @@ int ff_rtmp_packet_write(URLContext *h, RTMPPacket *pkt,
uint8_t pkt_hdr[16], *p = pkt_hdr;
int mode = RTMP_PS_TWELVEBYTES;
int off = 0;
+ pkt->ts_delta = pkt->timestamp - prev_pkt[pkt->channel_id].timestamp;
//TODO: header compression
if (pkt->channel_id < 64) {
@@ -165,7 +168,7 @@ int ff_rtmp_packet_write(URLContext *h, RTMPPacket *pkt,
if (mode != RTMP_PS_ONEBYTE) {
uint32_t timestamp = pkt->timestamp;
if (mode != RTMP_PS_TWELVEBYTES)
- timestamp -= prev_pkt[pkt->channel_id].timestamp;
+ timestamp = pkt->ts_delta;
bytestream_put_be24(&p, timestamp >= 0xFFFFFF ? 0xFFFFFF : timestamp);
if (mode != RTMP_PS_FOURBYTES) {
bytestream_put_be24(&p, pkt->data_size);
@@ -200,6 +203,7 @@ int ff_rtmp_packet_create(RTMPPacket *pkt, int channel_id, RTMPPacketType type,
pkt->type = type;
pkt->timestamp = timestamp;
pkt->extra = 0;
+ pkt->ts_delta = 0;
return 0;
}
diff --git a/libavformat/rtmppkt.h b/libavformat/rtmppkt.h
index 2c4f92bbec..8be59078e6 100644
--- a/libavformat/rtmppkt.h
+++ b/libavformat/rtmppkt.h
@@ -75,7 +75,8 @@ enum RTMPPacketSize {
typedef struct RTMPPacket {
uint8_t channel_id; ///< RTMP channel ID (nothing to do with audio/video channels though)
RTMPPacketType type; ///< packet payload type
- uint32_t timestamp; ///< packet full timestamp or timestamp increment to the previous one in milliseconds (latter only for media packets)
+ uint32_t timestamp; ///< packet full timestamp
+ uint32_t ts_delta; ///< timestamp increment to the previous one in milliseconds (latter only for media packets)
uint32_t extra; ///< probably an additional channel ID used during streaming data
uint8_t *data; ///< packet payload
int data_size; ///< packet payload size