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Remove access to rdt_data struct in functions called outside of the

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DynamicProtocol* context. Doing so could lead to problems if we're accessing
Real servers serving non-RDT data (or the other way around). Temporarily,
this patch adds a _subscribe2() function which will soon be removed in one
of the subsequent commits. OK'ed by Luca in "Realmedia patch" thread on ML.

Originally committed as revision 15483 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ronald S. Bultje 2008-09-30 13:23:33 +00:00
parent eee2cbff77
commit ab63fb0360
3 changed files with 16 additions and 8 deletions
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15
libavformat/rdt.c
View File

@ -234,15 +234,20 @@ ff_rdt_parse_packet(RTPDemuxContext *s, AVPacket *pkt,
}
void
ff_rdt_subscribe_rule (RTPDemuxContext *s, char *cmd, int size,
ff_rdt_subscribe_rule (char *cmd, int size,
int stream_nr, int rule_nr)
{
av_strlcatf(cmd, size, "stream=%d;rule=%d,stream=%d;rule=%d",
stream_nr, rule_nr * 2, stream_nr, rule_nr * 2 + 1);
}
void
ff_rdt_subscribe_rule2 (RTPDemuxContext *s, char *cmd, int size,
int stream_nr, int rule_nr)
{
rdt_data *rdt = s->dynamic_protocol_context;
av_strlcatf(cmd, size, "stream=%d;rule=%d,stream=%d;rule=%d",
stream_nr, rule_nr, stream_nr, rule_nr + 1);
rdt_load_mdpr(rdt, s->st, 0);
rdt_load_mdpr(rdt, s->st, rule_nr * 2);
}
static unsigned char *

6
libavformat/rdt.h
View File

@ -45,14 +45,16 @@ void av_register_rdt_dynamic_payload_handlers(void);
/**
* Add subscription information to Subscribe parameter string.
*
* @param s RDT context
* @param cmd string to write the subscription information into.
* @param size size of cmd.
* @param stream_nr stream number.
* @param rule_nr rule number to conform to.
*/
void ff_rdt_subscribe_rule(RTPDemuxContext *s, char *cmd, int size,
void ff_rdt_subscribe_rule(char *cmd, int size,
int stream_nr, int rule_nr);
// FIXME this will be removed ASAP
void ff_rdt_subscribe_rule2(RTPDemuxContext *s, char *cmd, int size,
int stream_nr, int rule_nr);
/**
* Parse RDT-style packet data (header + media data).

3
libavformat/rtsp.c
View File

@ -1324,7 +1324,8 @@ static int rtsp_read_packet(AVFormatContext *s,
s->filename);
for (i = 0; i < rt->nb_rtsp_streams; i++) {
if (i != 0) av_strlcat(cmd, ",", sizeof(cmd));
ff_rdt_subscribe_rule(
ff_rdt_subscribe_rule(cmd, sizeof(cmd), i, 0);
ff_rdt_subscribe_rule2(
rt->rtsp_streams[i]->rtp_ctx,
cmd, sizeof(cmd), i, 0);
}