*/
#include "libavutil/mathematics.h"
+#include "libavutil/avstring.h"
#include "libavcodec/get_bits.h"
#include "avformat.h"
#include "mpegts.h"
#include "url.h"
#include <unistd.h>
-#include <strings.h>
#include "network.h"
#include "rtpdec.h"
RTPDynamicProtocolHandler *handler;
for (handler = RTPFirstDynamicPayloadHandler;
handler; handler = handler->next)
- if (!strcasecmp(name, handler->enc_name) &&
+ if (!av_strcasecmp(name, handler->enc_name) &&
codec_type == handler->codec_type)
return handler;
return NULL;
static int rtcp_parse_packet(RTPDemuxContext *s, const unsigned char *buf, int len)
{
int payload_len;
- while (len >= 2) {
+ while (len >= 4) {
+ payload_len = FFMIN(len, (AV_RB16(buf + 2) + 1) * 4);
+
switch (buf[1]) {
case RTCP_SR:
- if (len < 16) {
+ if (payload_len < 20) {
av_log(NULL, AV_LOG_ERROR, "Invalid length for RTCP SR packet\n");
return AVERROR_INVALIDDATA;
}
- payload_len = (AV_RB16(buf + 2) + 1) * 4;
s->last_rtcp_ntp_time = AV_RB64(buf + 8);
s->last_rtcp_timestamp = AV_RB32(buf + 16);
s->rtcp_ts_offset = s->last_rtcp_timestamp - s->base_timestamp;
}
- buf += payload_len;
- len -= payload_len;
break;
case RTCP_BYE:
return -RTCP_BYE;
- default:
- return -1;
}
+
+ buf += payload_len;
+ len -= payload_len;
}
return -1;
}
return 1;
}
-int rtp_check_and_send_back_rr(RTPDemuxContext *s, int count)
+int ff_rtp_check_and_send_back_rr(RTPDemuxContext *s, int count)
{
AVIOContext *pb;
uint8_t *buf;
return 0;
}
-void rtp_send_punch_packets(URLContext* rtp_handle)
+void ff_rtp_send_punch_packets(URLContext* rtp_handle)
{
AVIOContext *pb;
uint8_t *buf;
* MPEG2TS streams to indicate that they should be demuxed inside the
* rtp demux (otherwise CODEC_ID_MPEG2TS packets are returned)
*/
-RTPDemuxContext *rtp_parse_open(AVFormatContext *s1, AVStream *st, URLContext *rtpc, int payload_type, int queue_size)
+RTPDemuxContext *ff_rtp_parse_open(AVFormatContext *s1, AVStream *st, URLContext *rtpc, int payload_type, int queue_size)
{
RTPDemuxContext *s;
}
void
-rtp_parse_set_dynamic_protocol(RTPDemuxContext *s, PayloadContext *ctx,
- RTPDynamicProtocolHandler *handler)
+ff_rtp_parse_set_dynamic_protocol(RTPDemuxContext *s, PayloadContext *ctx,
+ RTPDynamicProtocolHandler *handler)
{
s->dynamic_protocol_context = ctx;
s->parse_packet = handler->parse_packet;
{
if (pkt->pts != AV_NOPTS_VALUE || pkt->dts != AV_NOPTS_VALUE)
return; /* Timestamp already set by depacketizer */
- if (s->last_rtcp_ntp_time != AV_NOPTS_VALUE && timestamp != RTP_NOTS_VALUE) {
+ if (timestamp == RTP_NOTS_VALUE)
+ return;
+
+ if (s->last_rtcp_ntp_time != AV_NOPTS_VALUE && s->ic->nb_streams > 1) {
int64_t addend;
int delta_timestamp;
delta_timestamp;
return;
}
- if (timestamp == RTP_NOTS_VALUE)
- return;
+
if (!s->base_timestamp)
s->base_timestamp = timestamp;
- pkt->pts = s->range_start_offset + timestamp - s->base_timestamp;
+ /* assume that the difference is INT32_MIN < x < INT32_MAX, but allow the first timestamp to exceed INT32_MAX */
+ if (!s->timestamp)
+ s->unwrapped_timestamp += timestamp;
+ else
+ s->unwrapped_timestamp += (int32_t)(timestamp - s->timestamp);
+ s->timestamp = timestamp;
+ pkt->pts = s->unwrapped_timestamp + s->range_start_offset - s->base_timestamp;
}
static int rtp_parse_packet_internal(RTPDemuxContext *s, AVPacket *pkt,
* @return 0 if a packet is returned, 1 if a packet is returned and more can follow
* (use buf as NULL to read the next). -1 if no packet (error or no more packet).
*/
-int rtp_parse_packet(RTPDemuxContext *s, AVPacket *pkt,
- uint8_t **bufptr, int len)
+int ff_rtp_parse_packet(RTPDemuxContext *s, AVPacket *pkt,
+ uint8_t **bufptr, int len)
{
int rv = rtp_parse_one_packet(s, pkt, bufptr, len);
s->prev_ret = rv;
return rv ? rv : has_next_packet(s);
}
-void rtp_parse_close(RTPDemuxContext *s)
+void ff_rtp_parse_close(RTPDemuxContext *s)
{
ff_rtp_reset_packet_queue(s);
if (!strcmp(ff_rtp_enc_name(s->payload_type), "MP2T")) {