[FFmpeg-trac] #8102(avformat:new): FFmpeg selects unavailable HLS stream
FFmpeg
trac at avcodec.org
Wed Aug 28 11:35:44 EEST 2019
#8102: FFmpeg selects unavailable HLS stream
-----------------------------------+----------------------------------
Reporter: jaylinski | Type: defect
Status: new | Priority: normal
Component: avformat | Version: 4.2
Keywords: hls | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-----------------------------------+----------------------------------
== Summary of the bug: ==
FFmpeg can handle HLS streams (https://tools.ietf.org/html/rfc8216) via
m3u8 files.
A master file contains info on available streams and can look like this:
{{{
#EXTM3U
#EXT-X-INDEPENDENT-SEGMENTS
#EXT-X-STREAM-INF:CLOSED-CAPTIONS=NONE,BANDWIDTH=644706,AVERAGE-
BANDWIDTH=556000,RESOLUTION=640x360,FRAME-
RATE=24.000,CODECS="avc1.64081E,mp4a.40.2"
../1426858145/playlist.m3u8
#EXT-X-STREAM-INF:CLOSED-CAPTIONS=NONE,BANDWIDTH=13172611,AVERAGE-
BANDWIDTH=4557000,RESOLUTION=1920x1080,FRAME-RATE=24.000,VIDEO-
RANGE="SDR",CODECS="av01.0.13M.08.0.111.01.01.01.0,mp4a.40.2"
../1436130848/playlist.m3u8
#EXT-X-STREAM-INF:CLOSED-CAPTIONS=NONE,BANDWIDTH=6066970,AVERAGE-
BANDWIDTH=4992000,RESOLUTION=1920x1080,FRAME-
RATE=24.000,CODECS="avc1.640828,mp4a.40.2"
../1426858148/playlist.m3u8
}}}
Even though the HLS specification says that all proposed streams must be
available, a proposed stream can become unavailable (eg when the HLS
server has an issue).
In case of the example above, FFmpeg selects the av1 encoded stream. (I am
aware that AV1 decoding has to be enabled with libaom or libdav1d). But
the segments from the m3u8 file will return 404 HTTP errors, because the
Vimeo HLS server can not yet handle av1 encoded videos. This results in
FFmpeg stopping the playback.
Microsoft Edge handles this differently and can play the HLS stream, by
not switching to unavailable streams.
== How to reproduce: ==
1. Open https://player.vimeo.com/video/351678382/config
2. Copy the HLS master playlist referenced in the JSON (request > files >
hls > cdns > xxx > url)
3. Open the HLS master playlist with ffplay
== Debug log: ==
{{{
ffplay https://183skyfiregce-
vimeo.akamaized.net/exp\=1566984057\~acl\=%2F351678382%2F%2A\~hmac\=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1426858145,1436119658,1436130849,1436130848,1436119661,1436119657,1426858149,1426858148,1426858147,1426858146/master.m3u8
ffplay version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2003-2019 the FFmpeg
developers
built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1
--toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
--incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping
--enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
--enable-libcdio --enable-libflite --enable-libfontconfig --enable-
libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-
libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt
--enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg
--enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex
--enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis
--enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265
--enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi
--enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-
libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint
--enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1426858145/playlist.m3u8'
for reading
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/playlist.m3u8'
for reading
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436130849/playlist.m3u8'
for reading
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436130848/playlist.m3u8'
for reading
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119661/playlist.m3u8'
for reading
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119657/playlist.m3u8'
for reading
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1426858149/playlist.m3u8'
for reading
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1426858148/playlist.m3u8'
for reading
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1426858147/playlist.m3u8'
for reading
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1426858146/playlist.m3u8'
for reading
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1426858145/chop/segment-1.ts'
for reading
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-1.ts'
for reading
[https @ 0x7f0560440760] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-2.ts'
for reading
[https @ 0x7f0560a87aa0] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-3.ts'
for reading
[https @ 0x7f0560803f60] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-4.ts'
for reading
[https @ 0x7f0560815580] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-5.ts'
for reading
[https @ 0x7f0560825040] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-6.ts'
for reading
[https @ 0x7f0560770300] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-7.ts'
for reading
[https @ 0x7f05608d8860] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-8.ts'
for reading
[https @ 0x7f0560836700] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-9.ts'
for reading
[https @ 0x7f0560449040] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-10.ts'
for reading
[https @ 0x7f05609842e0] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-11.ts'
for reading
[https @ 0x7f05609ab600] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-12.ts'
for reading
[https @ 0x7f05609cd040] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-13.ts'
for reading
[https @ 0x7f0560a768e0] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-14.ts'
for reading
[https @ 0x7f0560752e60] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-15.ts'
for reading
[https @ 0x7f05608f5320] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-16.ts'
for reading
[https @ 0x7f0560737200] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-17.ts'
for reading
[https @ 0x7f0560a17ee0] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-18.ts'
for reading
[https @ 0x7f05608f48a0] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-19.ts'
for reading
[https @ 0x7f0560449040] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-20.ts'
for reading
[https @ 0x7f056085c200] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-21.ts'
for reading
[https @ 0x7f05607e84c0] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-22.ts'
for reading
[https @ 0x7f0560904c40] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-23.ts'
for reading
[https @ 0x7f0560904e60] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-24.ts'
for reading
[https @ 0x7f0560738140] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-25.ts'
for reading
[https @ 0x7f05607fae00] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Opening 'https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-26.ts'
for reading
[https @ 0x7f0560707b80] HTTP error 404 Not Found sq= 0B f=0/0
[hls,applehttp @ 0x7f0560000b80] Failed to open segment of playlist 1
[hls,applehttp @ 0x7f0560000b80] Error when loading first segment 'https
://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1436119658/chop/segment-1.ts'
https://183skyfiregce-
vimeo.akamaized.net/exp=1566984057~acl=%2F351678382%2F%2A~hmac=ffc5dc761c7011181bea093b31615e6c9900a7bb1d29ab9e930037c103ab48b7/351678382/video/1426858145,1436119658,1436130849,1436130848,1436119661,1436119657,1426858149,1426858148,1426858147,1426858146/master.m3u8:
Invalid data found when processing input
}}}
I also reproduced the problem with the current 4.2 release.
== Possible fix: ==
Check if a stream returns a 2xx HTTP status code before selecting it.
I guess this has to be done somewhere in
https://github.com/FFmpeg/FFmpeg/blob/release/4.2/libavformat/hls.c. If
you can point me to the right line, I'll try to submit a fix.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8102>
FFmpeg <https://ffmpeg.org>
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