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Commit Graph

86 Commits

Author SHA1 Message Date
James Almer
762c2b5dcd Merge commit '9b4c3f5aadf54ffd2a6e15746b1fd736379883c4'
* commit '9b4c3f5aadf54ffd2a6e15746b1fd736379883c4':
  network: Add RFC 8305 style "Happy Eyeballs"/"Fast Fallback" helper function

Merged-by: James Almer <jamrial@gmail.com>
2018-09-11 13:54:30 -03:00
Martin Storsjö
9b4c3f5aad network: Add RFC 8305 style "Happy Eyeballs"/"Fast Fallback" helper function
For cases with dual stack (IPv4 + IPv6) connectivity, but where one
stack potentially is less reliable, strive to trying to connect over
both protocols in parallel, using whichever address connected first.

In cases with a hostname resolving to multiple IPv4 and IPv6
addresses, the current connection mechanism would try all addresses
in the order returned by getaddrinfo (with all IPv6 addresses ordered
before the IPv4 addresses normally). If connection attempts to the
IPv6 addresses return quickly with an error, this was no problem, but
if they were unsuccessful leading up to timeouts, the connection process
would have to wait for timeouts on all IPv6 target addresses before
attempting any IPv4 address.

Similar to what RFC 8305 suggests, reorder the list of addresses to
try connecting to, interleaving address families. After starting one
connection attempt, start another one in parallel after a small delay
(200 ms as suggested by the RFC).

For cases with unreliable IPv6 but reliable IPv4, this should make
connection attempts work as reliably as with plain IPv4, with only an
extra 200 ms of connection delay.

Signed-off-by: Martin Storsjö <martin@martin.st>
2018-08-31 12:26:51 +03:00
Jun Zhao
d428ef0ea5 lavf/network: add a ff_log_net_error function.
add a ff_log_net_error function for error log.

Signed-off-by: Jun Zhao <mypopydev@gmail.com>
2018-08-18 16:16:11 +08:00
Jun Zhao
1655e1096e lavf/network: fix doxygen comments.
Signed-off-by: Jun Zhao <mypopydev@gmail.com>
2018-05-10 19:02:53 +08:00
wm4
631c56a8e4 avformat: make avformat_network_init() explicitly optional
It was sort of optional before - if you didn't call it, networking was
initialized on demand, and an ugly warning was logged. Also, the doxygen
comments threatened that it would be made strictly required one day.

Make it explicitly optional. I would prefer to deprecate it fully, but
there might still be legitimate reasons to use this. But the average
user won't need it.

This is needed only for two reasons: to initialize TLS libraries like
OpenSSL and GnuTLS, and winsock.

OpenSSL and GnuTLS were already silently initialized on demand if the
global network init function was not called. They also have various
thread-safety acrobatics, which make concurrent initialization within
libavformat safe. In addition, the libraries are moving towards making
their global init functions safe, which removes all need for central
global init. In particular, GnuTLS 3.5.16 and OpenSSL 1.1.0g have been
found to have safe init functions. In all cases, they use internal
reference counters to avoid that the global uninit functions interfere
with concurrent uses of the library by other API users who called global
init.

winsock should be thread-safe as well, and maintains an internal
reference counter as well.

Since we still support ancient TLS libraries, which do not have this
fixed, and since it's unknown whether winsock and GnuTLS
reinitialization is costly in any way, don't deprecate the libavformat
functions yet.
2018-01-16 12:57:04 +01:00
Rostislav Pehlivanov
9396ed0f29 libavformat: unexpose the ff_inet_aton function
Used only by ffserver.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
2018-01-06 18:34:39 +00:00
wm4
8a108bdea0 http: block while waiting for reconnecting
It makes no sense to return an error after the first reconnect, and then
somehow resume the next time it's called. Usually this will lead to
demuxer errors. Make reconnecting block instead, until it has either
successfully reconnected, or given up.

Also make the wait reasonably interruptible. Since there is no mechanism
for this in the API, polling is the best we can do. This behaves roughly
the same as other interruptible network functions in libavformat.

(The original code would work if it returned AVERROR(EAGAIN) or so,
which would make retry_transfer_wrapper() repeat the read call. But I
think having an explicit loop for this is better anyway.)

I also snuck in a fix for reconnect_at_eof. It has to check for
AVERROR_EOF, not 0.
2018-01-04 15:07:55 +01:00
Aman Gupta
80bb81a8f3 avformat/tcp: add option to enable TCP_NODELAY
This can reduce latency and increase throughput, particularly on high
latency networks.

Signed-off-by: Aman Gupta <aman@tmm1.net>
Reviewed-by: Jeyapal, Karthick <kjeyapal@akamai.com>
2017-11-17 10:48:55 -08:00
Stephan Holljes
cf6c871bee lavf/network: split ff_listen_bind into ff_listen and ff_accept
Signed-off-by: Stephan Holljes <klaxa1337@googlemail.com>
2015-08-01 00:58:31 +02:00
Michael Niedermayer
7620d48f2e avformat/network: Check for av_malloc* failures in ff_tls_init()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-02-03 02:21:55 +01:00
Michael Niedermayer
b76d6132e3 avformat/network: move sockaddr_union after sockaddr_storage compatibility code
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-09-16 01:19:53 +02:00
Michael Niedermayer
8c1dc1f6ed avformat/network: add union for avoiding strict aliassing violations with sockaddr*
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-09-15 13:31:00 +02:00
Michael Niedermayer
08a110ca87 Merge commit '6ee1cb5740e7490151db7dcec7e20ceaf8a2fe1f'
* commit '6ee1cb5740e7490151db7dcec7e20ceaf8a2fe1f':
  libavformat: use MSG_NOSIGNAL when applicable

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-25 13:27:21 +02:00
Rémi Denis-Courmont
6ee1cb5740 libavformat: use MSG_NOSIGNAL when applicable
If the remote end of a connection oriented socket hangs up, generating
an EPIPE error is preferable over an unhandled SIGPIPE signal.

Signed-off-by: Martin Storsjö <martin@martin.st>
2014-08-25 10:49:14 +03:00
Michael Niedermayer
77274d5c79 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  network.h: Add #endif comments to improve readability

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-01-07 13:16:55 +01:00
Diego Biurrun
9997cee04d network.h: Add #endif comments to improve readability 2014-01-06 21:16:54 +01:00
Michael Niedermayer
296eaa84b9 Merge commit '9d5ec50ead97e088d77317e77b18cef06cb3d053'
* commit '9d5ec50ead97e088d77317e77b18cef06cb3d053':
  ff_socket: put out-of-line and fallback to fcntl() for close-on-exec

Conflicts:
	libavformat/network.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-10 10:18:18 +02:00
Rémi Denis-Courmont
9d5ec50ead ff_socket: put out-of-line and fallback to fcntl() for close-on-exec
This supports non-Linux systems (SOCK_CLOEXEC is non-standard) and
older Linux kernels to the extent possible.

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-08-09 11:26:50 +03:00
Michael Niedermayer
89efaabc99 Merge commit 'abe5268c3328bf0e8fcfb7dc6e231b8920177c3a'
* commit 'abe5268c3328bf0e8fcfb7dc6e231b8920177c3a':
  tcp: Use a different log message and level if there's more addresses to try

Conflicts:
	libavformat/tcp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-06 17:53:01 +02:00
Michael Niedermayer
2539767206 Merge commit 'bb9378251a167ef0116f263912e57f715c1e02ac'
* commit 'bb9378251a167ef0116f263912e57f715c1e02ac':
  network: Use SOCK_CLOEXEC when available

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-06 15:40:05 +02:00
Martin Storsjö
abe5268c33 tcp: Use a different log message and level if there's more addresses to try
This lowers the level of warnings printed if trying to connect
to a host name that provides both v6 and v4 addresses but the
service only is available on the v4 address (often occurring for
'localhost', with servers that aren't v6-aware).

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-08-06 10:39:39 +03:00
Luca Barbato
bb9378251a network: Use SOCK_CLOEXEC when available 2013-08-05 16:13:36 +02:00
Andrey Utkin
1e85b5e077 ff_network_wait_fd_timeout(): check for interrupt before operation
Reviewed-by: Lukasz M <lukasz.m.luki@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-07-12 21:27:27 +02:00
Michael Niedermayer
84f77f8423 Merge commit 'ec7c51c7868d3ccc66b5cc38bf126258b94f086c'
* commit 'ec7c51c7868d3ccc66b5cc38bf126258b94f086c':
  avf: move ff_http_match_no_proxy to network

Conflicts:
	libavformat/internal.h
	libavformat/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-06-16 23:45:42 +02:00
Luca Barbato
ec7c51c786 avf: move ff_http_match_no_proxy to network
It is only used by network protocols.
2013-06-16 14:41:00 +02:00
Michael Niedermayer
82070b01b8 Merge commit '9835abb6d63fb07613994ae90e72fef758149408'
* commit '9835abb6d63fb07613994ae90e72fef758149408':
  network: uniform ff_listen_bind and ff_listen_connect

Conflicts:
	libavformat/network.c
	libavformat/tcp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-06-05 11:56:56 +02:00
Luca Barbato
9835abb6d6 network: uniform ff_listen_bind and ff_listen_connect
Document the functions and have both use a millisecond timeout and
check for interrupt.
2013-06-04 14:56:52 +02:00
Michael Niedermayer
54ddbb477b Merge remote-tracking branch 'qatar/master'
* qatar/master:
  network: factor out connect-listening code

Conflicts:
	libavformat/network.h
	libavformat/tcp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-06-02 11:02:02 +02:00
Michael Niedermayer
4d4f5911d3 Merge commit '28306e6d620c109ddd672f7243adfbc2bbb3b18f'
* commit '28306e6d620c109ddd672f7243adfbc2bbb3b18f':
  network: factor out bind-listening code
  use my full first name instead of short one in copyrights

Conflicts:
	libavformat/tcp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-06-02 10:30:35 +02:00
Luca Barbato
f849a77e67 network: factor out connect-listening code
Introduce ff_listen_connect, to be shared with the other
non-tcp network protocols.
2013-06-01 15:29:53 +02:00
Luca Barbato
28306e6d62 network: factor out bind-listening code
Introduce ff_listen_bind, to be shared with the other non-tcp
network protocols.
2013-06-01 15:29:53 +02:00
Michael Niedermayer
2dbc93455c Merge commit '80521c1997a23e148edf89e11b939ab8646297ca'
* commit '80521c1997a23e148edf89e11b939ab8646297ca':
  build: allow targets to specify extra objects to link with executables
  swscale: avoid pointless use of compound literals
  libm: add fallbacks for various single-precision functions
  network: use getservbyport() only if available
  network: add fallbacks for INADDR_LOOPBACK and INET_ADDRSTRLEN
  Include sys/time.h before sys/resource.h

Conflicts:
	Makefile
	configure
	libavutil/libm.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-24 12:53:26 +02:00
Mans Rullgard
da0d0ae9a4 network: add fallbacks for INADDR_LOOPBACK and INET_ADDRSTRLEN
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-10-23 12:00:21 +01:00
Michael Niedermayer
d6e87190fd Merge commit 'a25d912dca9cd553440167e0476c47581359c0fc'
* commit 'a25d912dca9cd553440167e0476c47581359c0fc':
  avcodec_encode_audio(): fix invalid free
  pcm-mpeg: correct bitrate calculation
  ffv1: K&R formatting cosmetics
  fate: Add rangecoder test
  network: #include stdint.h in network.h
  nut: export codec_tag provided by rawvideo
  avserver: move avserver-specific code from ffmdec.c to avserver.c

Conflicts:
	ffserver.c
	libavcodec/ffv1.c
	libavformat/ffmdec.c
	libavformat/nutenc.c
	tests/ref/lavfi/crop
	tests/ref/lavfi/crop_scale
	tests/ref/lavfi/crop_scale_vflip
	tests/ref/lavfi/crop_vflip
	tests/ref/lavfi/null
	tests/ref/lavfi/pixdesc
	tests/ref/lavfi/pixfmts_copy
	tests/ref/lavfi/pixfmts_crop
	tests/ref/lavfi/pixfmts_hflip
	tests/ref/lavfi/pixfmts_null
	tests/ref/lavfi/pixfmts_pad
	tests/ref/lavfi/pixfmts_scale
	tests/ref/lavfi/pixfmts_vflip
	tests/ref/lavfi/scale200
	tests/ref/lavfi/scale500
	tests/ref/lavfi/vflip
	tests/ref/lavfi/vflip_crop
	tests/ref/lavfi/vflip_vflip

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-17 14:17:55 +02:00
Mans Rullgard
1fbaabefc4 network: #include stdint.h in network.h
This header uses various types provided by stdint.h without
explicitly including it.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-10-16 14:45:29 +01:00
Andrey Utkin
d2b18c8f5b Introduce ff_network_wait_fd_timeout()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-09 17:17:05 +02:00
Michael Niedermayer
9db747b2a3 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  rtmp: rtmp_parse_result() add case for video and audio packets to avoid undesired debug output.
  configure: Move the getaddrinfo function check into the network block
  configure: Remove an unused 'have' item
  mpeg: remove disabled code
  libfdk-aac: Check if cutoff value is valid
  network: Always use our version of gai_strerror on windows
  network: Undefine existing gai_strerror definitions
  network: Extend the fallback gai_strerror implementation to handle more error codes

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-16 20:45:41 +02:00
Martin Storsjö
9e4b04f8b9 network: Always use our version of gai_strerror on windows
Even if linking directly to getaddrinfo, use our version of
gai_strerror instead of the system's version. Microsoft explicitly
documents that their version of gai_strerror is thread-unsafe.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-15 21:41:38 +03:00
Martin Storsjö
c98e2053f5 network: Undefine existing gai_strerror definitions
This avoids warnings if there already exists a definition.

This is the case on windows, where the getaddrinfo isn't available
and linked to (and we use our fallbacks instead, which actually
try to use the proper getaddrinfo version if found at runtime),
but gai_strerror still exists as a define.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-15 21:41:28 +03:00
Martin Storsjö
2ca6e9bb47 network: Extend the fallback gai_strerror implementation to handle more error codes
This is useful if a proper getaddrinfo is loaded dynamically on
windows, while using the fallback implementation of gai_strerror.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-15 21:21:59 +03:00
Michael Niedermayer
b536e2facf Merge remote-tracking branch 'qatar/master'
* qatar/master:
  avconv: add an assert to silence an uninitialized variable warning.
  avconv: shut up an uninitialized variable warning.
  avfiltergraph: shut up uninitialized variable warning.
  af_join: initialize a variable to shut up gcc warning.
  amix: fix format specifier for AVFilterLink.sample_rate.
  lavfi: make filters less verbose.
  mpc8: read APE tags.
  lavr: x86: fix ff_conv_fltp_to_flt_6ch function prototypes
  libm: provide fallback definition for cbrtf() using powf()
  network: Don't redefine error codes if they already exist in errno.h
  configure: Check for sys/time.h
  network: Include unistd.h from network.h
  avconv: don't include vsrc_buffer.h, which doesn't exist anymore
  lavfi: reorder AVFilterLink fields.
  lavfi: reorder AVFilterContext fields.
  lavfi: reorder AVFilter fields.
  lavfi: reorder AVFilterBufferRef fields.
  lavfi: reorder AVFilterBuffer fields.

Conflicts:
	configure
	libavcodec/v210dec.h
	libavfilter/asrc_anullsrc.c
	libavfilter/avfilter.h
	libavfilter/buffersrc.c
	libavfilter/src_movie.c
	libavfilter/vf_aspect.c
	libavfilter/vf_crop.c
	libavfilter/vf_drawbox.c
	libavfilter/vf_fade.c
	libavfilter/vf_overlay.c
	libavfilter/vf_pad.c
	libavfilter/vf_scale.c
	libavfilter/vsrc_color.c
	libavformat/network.h
	libavutil/libm.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-06-27 01:58:09 +02:00
Ronald S. Bultje
4b1b1449d9 network: Don't redefine error codes if they already exist in errno.h
Since the errno.h values don't match the error codes that winsock
returns, map the winsock error codes to the errno ones, to make
sure explicit checks against AVERROR(x) match.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-06-26 17:22:21 +03:00
Martin Storsjö
39dba5aa1b network: Include unistd.h from network.h
This heaader is required for close() for sockets in network
code. For winsock, the equivalent function is defined in the
winsock2.h header.

This avoids having the HAVE_UNISTD_H in all files dealing with
raw sockets.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-06-26 17:22:21 +03:00
Michael Niedermayer
4da42ebe44 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  MS Screen 1 decoder
  aacdec: Fix popping channel layouts.
  av_gettime: support Win32 without gettimeofday()
  Use av_gettime() in various places
  Move av_gettime() to libavutil
  dct-test: use emms_c() from libavutil instead of duplicating it
  mov: fix operator precedence bug
  mathematics.h: remove a couple of math defines
  Remove unnecessary inclusions of [sys/]time.h
  lavf: remove unnecessary inclusions of unistd.h
  bfin: libswscale: add const where appropriate to fix warnings
  bfin: libswscale: remove unnecessary #includes
  udp: Properly check for invalid sockets
  tcp: Check the return value from getsockopt
  network: Use av_strerror for getting error messages
  udp: Properly print error from getnameinfo
  mmst: Use AVUNERROR() to convert error codes to the right range for strerror
  network: Pass pointers of the right type to get/setsockopt/ioctlsocket on windows
  rtmp: Reduce the number of idle posts sent by sleeping 50ms

Conflicts:
	Changelog
	configure
	libavcodec/aacdec.c
	libavcodec/allcodecs.c
	libavcodec/avcodec.h
	libavcodec/dct-test.c
	libavcodec/version.h
	libavformat/riff.c
	libavformat/udp.c
	libavutil/Makefile
	libswscale/bfin/yuv2rgb_bfin.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-06-20 20:47:46 +02:00
Martin Storsjö
561687696f network: Pass pointers of the right type to get/setsockopt/ioctlsocket on windows
This avoids warnings.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-06-19 20:22:47 +03:00
Vincent Torri
ed3c0fe85d Remove some warnings when compiling with mingw (mingw-w64, 32 bits)
Reviewed-by: Ramiro Polla <ramiro.polla@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-03 19:51:13 +01:00
Michael Niedermayer
0bd42ae72c Merge remote-tracking branch 'qatar/master'
* qatar/master:
  avformat: Avoid a warning about mixed declarations and code
  BMV demuxer and decoder
  matroskaenc: Make sure the seekhead struct is freed even on seek failure
  mpeg12enc: Remove write-only variables.
  mpeg12enc: Don't set up run-level info for level 0.
  msmpeg4: Don't set up run-level info for level 0.
  avformat: Warn about using network functions without calling avformat_network_init
  avformat: Revise wording
  rdt: Set AVFMT_NOFILE on ff_rdt_demuxer
  rdt: Check the return value of avformat_open
  rtsp: Discard the dynamic handler, if it has an alloc function which failed
  dsputil: use cpuflags in x86 versions of vector_clip_int32()

Conflicts:
	libavcodec/avcodec.h
	libavcodec/version.h
	libavformat/Makefile
	libavformat/allformats.c
	libavformat/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-08 02:03:14 +01:00
Martin Storsjö
ce145690b6 avformat: Warn about using network functions without calling avformat_network_init
This is to make developers aware of the fact that they will
start using the new init function at some point.

Signed-off-by: Martin Storsjö <martin@martin.st>
2011-11-07 19:29:33 +02:00
Michael Niedermayer
d8cab5c26b Merge remote-tracking branch 'qatar/master'
* qatar/master:
  http: Remove the custom function for disabling chunked posts
  rtsp: Disable chunked http post through AVOptions
  movdec: Set frame_size for AMR
  h264_weight: remove duplication functions.
  swscale: align vertical filtersize by 2 on x86.
  libavfilter: reindent.
  matroskadec: empty blocks are in fact valid.
  avfilter: don't abort() on zero-size allocations.
  h264: improve calculation of codec delay.
  movenc: Set a correct packet size for AMR-NB mode 15, "no data"
  avformat: Add functions for doing global network initialization
  avformat: Add the https protocol
  avformat: Add the tls protocol, using OpenSSL or gnutls
  avformat: Initialize gnutls in ff_tls_init()
  w32threads: Wrap the mutex functions in inline functions returning int
  configure: Allow linking to the gnutls library
  avformat: Add ff_tls_init()/deinit() that initialize OpenSSL
  configure: Allow linking to openssl
  avcodec: Allow locking and unlocking an avformat specific mutex
  avformat: Split out functions from network.h to a new file, network.c

Conflicts:
	Changelog
	configure
	doc/APIchanges
	libavcodec/internal.h
	libavcodec/version.h
	libavfilter/formats.c
	libavformat/matroskadec.c
	libavformat/mov.c
	libavformat/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-06 02:23:34 +01:00
Martin Storsjö
48e59ad8e7 avformat: Add ff_tls_init()/deinit() that initialize OpenSSL
If the application hasn't set up mutex callbacks, we set up
our own using pthreads (or w32pthreads).

Signed-off-by: Martin Storsjö <martin@martin.st>
2011-11-05 12:08:59 +02:00