This improves network throughput of the hls demuxer by avoiding
the latency introduced by downloading segments one at a time.
The problem is particularly noticable over high-latency network
connections: for instance, if RTT is 250ms, there will a 250ms idle
period between when one segment response is read and the next one
starts.
The obvious solution to this is to use HTTP pipelining, where a
second request can be sent (on the persistent http/1.1 connection)
before the first response is fully read. Unfortunately the way the
http protocol is implemented in avformat makes implementing pipleining
very complex.
Instead, this commit simulates pipelining using two separate persistent
http connections. This has the advantage of working independently of
the http_persistent option, and can be used with http/1.0 servers as
well. The pair of connections is swapped every time a new segment starts
downloading, and a request for the next segment is sent on the secondary
connection right away. This means the second response will be ready and
waiting by the time the current response is fully read.
Signed-off-by: Aman Gupta <aman@tmm1.net>
Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
This teaches the HLS demuxer to use the HTTP protocols
multiple_requests=1 option, to take advantage of "Connection:
Keep-Alive" when downloading playlists and segments from the HLS server.
With the new option, you can avoid TCP connection and TLS negotiation
overhead, which is particularly beneficial when streaming via a
high-latency internet connection.
Similar to the http_persistent option recently implemented in hlsenc.c
Signed-off-by: Aman Gupta <aman@tmm1.net>
Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
This mimics logging that was added in 53e0d5d724 for security
purposes.
Signed-off-by: Aman Gupta <aman@tmm1.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This will prevent improper use of ff_http_do_new_request() if the user
tries to send a request for a different host to a previously connected
persistent http/1.1 connection.
Signed-off-by: Aman Gupta <aman@tmm1.net>
Signed-off-by: Karthick J <kjeyapal@akamai.com>
Also, do not overread input if linesize > width, or linesize is not divisible
by 8, and use the proper rounded width/height for MAFD calculation.
Signed-off-by: Marton Balint <cus@passwd.hu>
This speeds up the filter, and also fixes scene change detection score which is
reduced based on the difference of the current MAFD to the preivous MAFD.
Obviously if we compare two frames twice, the difference will be 0...
Signed-off-by: Marton Balint <cus@passwd.hu>
- normalize score to [0..100] instead of [0..85]
- change the default score to 8.2 to roughly keep existing behaviour
- take into account bit depth
- do not truncate to integer
Signed-off-by: Marton Balint <cus@passwd.hu>
This is pretty much a requirement for any codec that handles modern
codecs like h264, but it was missing. Potentially could lead to issues
like missing frames at the end of a stream.
Tested-by: Jorge Ramirez <jorge.ramirez-ortiz@linaro.org>
Give a debug message when query attribute get VA_ATTRIB_NOT_SUPPORTED,
it's will help to trace and debug some issue.
Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>
Check fread return value to fix build warning as "ignoring
return value of ‘fread’"
Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
At least on Android the vp9 decoder/encoder needs $libm_extralibs
to successfully link, it was missing in the check_lib calls for vp9
Signed-off-by: Felix Matouschek <felix@matouschek.org>
Signed-off-by: James Almer <jamrial@gmail.com>
This check is not needed for any supported version of libtls
and causes issues with static builds (libtls links to -lssl -lcrypto).
Signed-off-by: sfan5 <sfan5@live.de>
Signed-off-by: James Almer <jamrial@gmail.com>
This was not accounted for during merge and is required due to
the refactor in commit 93ccba96df.
Signed-off-by: sfan5 <sfan5@live.de>
Signed-off-by: James Almer <jamrial@gmail.com>
Aman Gupta
Paul B Mahol
Karthick J
Marton Balint
Michael Niedermayer
wm4
James Almer
Steven Liu
Sasi Inguva
sfan5
Stefan Pöschel
Jun Zhao
Felix Matouschek
Martin Vignali