On Wed, Jul 13, 2016 at 07:22:52PM +0800, Steven Liu wrote: > 2016-07-13 18:28 GMT+08:00 Michael Niedermayer <mich...@niedermayer.cc>: > > > On Wed, Jun 29, 2016 at 01:07:13AM +0200, Hendrik Leppkes wrote: > > > On Wed, Jun 29, 2016 at 12:30 AM, Steven Liu <lingjiujia...@gmail.com> > > wrote: > > > > > > > > > > > > 2016-06-29 0:16 GMT+08:00 Hendrik Leppkes <h.lepp...@gmail.com>: > > > >> > > > >> On Tue, Jun 28, 2016 at 3:29 PM, Steven Liu <lingjiujia...@gmail.com> > > > >> wrote: > > > >> > before patched: > > > >> > [root@localhost ffmpeg]# ./ffmpeg_g -re -i /root/facebook.mp4 -c > > copy -f > > > >> > hls -v verbose -y aaaa.m3u8 > > > >> > ffmpeg version N-80779-gb18d6c5 Copyright (c) 2000-2016 the FFmpeg > > > >> > developers > > > >> > > > >> > > > >> The way I see it, the auto bsf from the mpegts muxer should already > > > >> cover this without changes? > > > > > > > > > > > > add the hls_check_bitstream into hls format and call the hls->avf to > > call > > > > the mpegtsenc's check_bitstream, > > > > don't do this operation, it won't call the mpegtsenc's > > check_bitstream, > > > > look at the message bellow: > > > > > > > > > > This is the wrong approach to fixing this however, it should be > > > understood first why its not doing this transparently right now. > > > hlsenc uses the mpegts muxer like one would use any other muxer, so > > > why does autobsf not get used? > > > > > > If we understand that, maybe it can be fixed in a more generic way, > > > and not end up in ugly hacks in hlsenc. > > > > The issue is that hlsenc does call ff_write_chained() which causes > > av_write_frame() instead of av_interleaved_write_frame() to be used, > > bypassing the current auto bsf code > > > > Using av_interleaved_write_frame() would, i assume introduce a delay > > > > The patch doesnt work either, for example this: > > ./ffmpeg -i matrixbench_mpeg2.mpg -i > > fate-suite/sub/MovText_capability_tester.mp4 -f hls file.m3u8 > > > > segfaults > > > > > Hi Michael, > > Can you upload the matrixbench_mpeg2.mpg and > fate-suite/sub/MovText_capability_tester.mp4? Let me test and fix it! >
http://samples.ffmpeg.org/benchmark/testsuite1/matrixbench_mpeg2.mpg http://fate-suite.ffmpeg.org/sub/MovText_capability_tester.mp4 [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB I know you won't believe me, but the highest form of Human Excellence is to question oneself and others. -- Socrates
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