#1981: mpegtsraw open of multicast stream may hang
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Reporter: Krieger | Owner:
Type: defect | Status: closed
Priority: normal | Component: avformat
Version: git-master | Resolution:
Keywords: mpegtsraw | needs_more_info
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by jhowe321):
Replying to [comment:2 cehoyos]:
> Please reopen if you can provide a backtrace.
Here's one on Windows, multiple branches. Occurs < 5% of the time. Cannot
reproduce on Linux.
{{{
avformat-57.dll!ff_poll(pollfd * fds, unsigned long numfds, int
timeout) Line 314 C Symbols loaded.
avformat-57.dll!ff_network_wait_fd(int fd, int write) Line 79 C
Symbols loaded.
avformat-57.dll!udp_read(URLContext * h, unsigned char * buf, int
size) Line 1069 C Symbols loaded.
avformat-57.dll!retry_transfer_wrapper(URLContext * h, unsigned
char * buf, int size, int size_min, int(*)(URLContext *, unsigned char *,
int) transfer_func) Line 376 C Symbols loaded.
avformat-57.dll!ffurl_read(URLContext * h, unsigned char * buf,
int size) Line 410 C Symbols loaded.
avformat-57.dll!fill_buffer(AVIOContext * s) Line 573 C
Symbols loaded.
avformat-57.dll!avio_read(AVIOContext * s, unsigned char * buf,
int size) Line 668 C Symbols loaded.
avformat-57.dll!read_packet(AVFormatContext * s, unsigned char *
buf, int raw_packet_size, const unsigned char * * data) Line 2454 C
Symbols loaded.
avformat-57.dll!mpegts_read_header(AVFormatContext * s) Line 2700
C Symbols loaded.
avformat-57.dll!avformat_open_input(AVFormatContext * * ps, const
char * filename, AVInputFormat * fmt, AVDictionary * * options) Line 595
C Symbols loaded.
}}}
libavformat/os_support.c
{{{
if (timeout < 0) {
rc = select(n, &read_set, &write_set, &exception_set, NULL);
} else {
struct timeval tv;
tv.tv_sec = timeout / 1000;
tv.tv_usec = 1000 * (timeout % 1000);
---> rc = select(n, &read_set, &write_set, &exception_set,
&tv);
}
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/1981#comment:3>
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