On Tue, 26 Dec 2017 05:26:34 +0000 Aman Gupta <ffm...@tmm1.net> wrote:
> On Mon, Dec 25, 2017 at 7:55 PM Aman Gupta <ffm...@tmm1.net> wrote: > > > On Mon, Dec 25, 2017 at 6:29 PM wm4 <nfx...@googlemail.com> wrote: > > > >> On Tue, 26 Dec 2017 02:14:11 +0000 > >> Aman Gupta <ffm...@tmm1.net> wrote: > >> > >> > On Mon, Dec 25, 2017 at 1:03 PM Michael Niedermayer > >> <mich...@niedermayer.cc> > >> > wrote: > >> > > >> > > On Mon, Dec 25, 2017 at 06:08:11PM +0000, Aman Gupta wrote: > >> > > > On Mon, Dec 25, 2017 at 9:58 AM Michael Niedermayer > >> > > <mich...@niedermayer.cc> > >> > > > wrote: > >> > > > > >> > > > > On Fri, Dec 22, 2017 at 11:00:34PM +0000, Aman Gupta wrote: > >> > > > > > ffmpeg | branch: master | Aman Gupta <a...@tmm1.net> | Wed > >> Oct 4 > >> > > > > 14:52:52 2017 -0700| [b7d6c0cd48dac7869b9e6803e2d47d05a4fa373b] | > >> > > > > committer: Aman Gupta > >> > > > > > > >> > > > > > avformat/hls: add http_persistent option > >> > > > > > > >> > > > > > 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 <a...@tmm1.net> > >> > > > > > Signed-off-by: Anssi Hannula <anssi.hann...@iki.fi> > >> > > > > > > >> > > > > > > > >> > > > > > >> > > > >> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b7d6c0cd48dac7869b9e6803e2d47d05a4fa373b > >> > >> > > > > > --- > >> > > > > > > >> > > > > > doc/demuxers.texi | 4 ++++ > >> > > > > > libavformat/hls.c | 72 > >> > > > > +++++++++++++++++++++++++++++++++++++++++++++++++++---- > >> > > > > > 2 files changed, 72 insertions(+), 4 deletions(-) > >> > > > > > >> > > > > This causes ffmpeg to infinite loop with simplehttpd.py > >> > > > > >> > > > > >> > > > Is that the same as SimpleHTTPServer.py? > >> > > > > >> > > > Sounds like it doesn't support persistent connections, but also > >> isn't > >> > > > returning "Connection: close" in the response. > >> > > > > >> > > > I can investigate if you tell me where to find that httpd server. > >> > > > >> > > Iam not sure where i got it from or its original source but it > >> matches the > >> > > source here: > >> > > > >> > > > >> > > > >> https://www.linuxjournal.com/content/tech-tip-really-simple-http-server-python > >> > >> > > >> > > >> > Thanks. > >> > > >> > I was able to reproduce the issue. It appears to be because the simple > >> http > >> > server is quite too simple, and can only handle one request at a time. > >> The > >> > http_multiple option tries to make a second request before the first is > >> > completed, causing a deadlock. > >> > > >> > I guess we could disable http_multiple by default... > >> > > >> > Aman > >> > > >> > < > >> https://www.linuxjournal.com/content/tech-tip-really-simple-http-server-python > >> > >> > > >> > >> So I hear this causes some infinite loop. Could this be made adaptive? > > > > > > I guess we could detect if the server is http/1.1 with the first request > > and only make multiple connections if it is. > > > > I sent a new patchset which only enables http_multiple for http/1.1 servers. > > I tested with simplehttpd.py and it works as expected. Probably an OK workaround for now. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
