[FFmpeg-trac] #2737(FFplay:new): There are discontinuous phenomenon in playing HLS stream when changing another bitrate stream
FFmpeg
trac at avcodec.org
Mon Jul 29 03:46:40 CEST 2013
#2737: There are discontinuous phenomenon in playing HLS stream when changing
another bitrate stream
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Reporter: felixyang_tw | Owner:
Type: enhancement | Status: new
Priority: normal | Component: FFplay
Version: git-master | Resolution:
Keywords: HLS | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by sinkers):
To assist with this ticket as I also have this issue please find console
output here along with a good online reference stream.
It should be noted that this reference stream contains alternate audio and
subtitle tracks neither of which seem to work with ffplay. Note I have
extensive experience with HLS and happy to help out here providing any
advice on how the player could be updated for this.
ffplay
https://devimages.apple.com.edgekey.net/streaming/examples/bipbop_16x9/bipbop_16x9_variant.m3u8
ffplay version N-54126-g8cdea50 Copyright (c) 2003-2013 the FFmpeg
developers
built on Jun 22 2013 19:20:40 with llvm-gcc 4.2.1 (LLVM build
2336.11.00)
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-
postproc --enable-libaacplus --enable-libcelt --enable-libfaac --enable-
libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-
amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-openssl
--enable-libopus --enable-libschroedinger --enable-libspeex --enable-
libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx
--enable-libx264 --enable-libxvid --prefix=/usr/local
libavutil 52. 37.101 / 52. 37.101
libavcodec 55. 16.100 / 55. 16.100
libavformat 55. 9.100 / 55. 9.100
libavdevice 55. 2.100 / 55. 2.100
libavfilter 3. 77.101 / 3. 77.101
libswscale 2. 3.100 / 2. 3.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 3.100 / 52. 3.100
It should also be noted that the startup for the playback is quite slow as
it appears ffplay parses all the variant playlists before starting
playback when it should just start playing on the first variant in the
list and then adapt based on network conditions or user input. Happy to
raise an additional ticket for this.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2737#comment:4>
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