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get rid of MAX_STREAMS limit in RTSP 

Originally committed as revision 24752 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2010-08-09 23:00:13 +00:00
parent dfdb353cd5
commit be73ba2fa4
2 changed files with 16 additions and 5 deletions
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15
libavformat/rtsp.c
View File

@ -1611,12 +1611,18 @@ redirect:
static int rtsp_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
RTSPState *rt = s->priv_data;
int ret;
ret = ff_rtsp_connect(s);
if (ret)
return ret;
rt->real_setup_cache = av_mallocz(2 * s->nb_streams * sizeof(*rt->real_setup_cache));
if (!rt->real_setup_cache)
return AVERROR(ENOMEM);
rt->real_setup = rt->real_setup_cache + s->nb_streams * sizeof(*rt->real_setup);
if (ap->initial_pause) {
/* do not start immediately */
} else {
@ -1835,13 +1841,12 @@ static int rtsp_read_packet(AVFormatContext *s, AVPacket *pkt)
if (rt->server_type == RTSP_SERVER_REAL) {
int i;
enum AVDiscard cache[MAX_STREAMS];
for (i = 0; i < s->nb_streams; i++)
cache[i] = s->streams[i]->discard;
rt->real_setup[i] = s->streams[i]->discard;
if (!rt->need_subscription) {
if (memcmp (cache, rt->real_setup_cache,
if (memcmp (rt->real_setup, rt->real_setup_cache,
sizeof(enum AVDiscard) * s->nb_streams)) {
snprintf(cmd, sizeof(cmd),
"Unsubscribe: %s\r\n",
@ -1857,7 +1862,7 @@ static int rtsp_read_packet(AVFormatContext *s, AVPacket *pkt)
if (rt->need_subscription) {
int r, rule_nr, first = 1;
memcpy(rt->real_setup_cache, cache,
memcpy(rt->real_setup_cache, rt->real_setup,
sizeof(enum AVDiscard) * s->nb_streams);
rt->last_subscription[0] = 0;
@ -1969,6 +1974,8 @@ static int rtsp_read_close(AVFormatContext *s)
ff_rtsp_close_streams(s);
ff_rtsp_close_connections(s);
ff_network_close();
rt->real_setup = NULL;
av_freep(&rt->real_setup_cache);
return 0;
}

6
libavformat/rtsp.h
View File

@ -267,7 +267,11 @@ typedef struct RTSPState {
/** stream setup during the last frame read. This is used to detect if
* we need to subscribe or unsubscribe to any new streams. */
enum AVDiscard real_setup_cache[MAX_STREAMS];
enum AVDiscard *real_setup_cache;
/** current stream setup. This is a temporary buffer used to compare
* current setup to previous frame setup. */
enum AVDiscard *real_setup;
/** the last value of the "SET_PARAMETER Subscribe:" RTSP command.
* this is used to send the same "Unsubscribe:" if stream setup changed,