Mpv: Streaming HLS Constantly Buffering

[evolutionxbox]

Related: #1077

mpv version and platform

macOS 10.13.2 (17C205)

mpv 0.27.2 (C) 2000-2017 mpv/MPlayer/mplayer2 projects
 built on Wed Feb 14 13:44:09 GMT 2018
ffmpeg library versions:
   libavutil       55.78.100
   libavcodec      57.107.100
   libavformat     57.83.100
   libswscale      4.8.100
   libavfilter     6.107.100
   libswresample   2.9.100
ffmpeg version: 3.4.2

Reproduction steps

Try to stream _chilledcow_'s music:
mpv https://www.youtube.com/watch\?v\=1Cs0qyG78qY -v -v -v

Expected behavior

Play stream without stopping.

Actual behavior

Stream plays for a second or two, but it then pauses for an indefinite period.
Verbose output shows that the stream is constantly buffering (on a 200MBps u/d connection).

[osc] rendering
[statusline] (Buffering) AV: 00:00:01 / 00:00:00 A-V:  0.000 Cache:  0s+2MB

Log file

[   0.005][v][cplayer] mpv 0.27.2 (C) 2000-2017 mpv/MPlayer/mplayer2 projects
[   0.005][v][cplayer]  built on Wed Feb 14 13:44:09 GMT 2018
[   0.005][v][cplayer] ffmpeg library versions:
[   0.005][v][cplayer]    libavutil       55.78.100
[   0.005][v][cplayer]    libavcodec      57.107.100
[   0.005][v][cplayer]    libavformat     57.83.100
[   0.005][v][cplayer]    libswscale      4.8.100
[   0.005][v][cplayer]    libavfilter     6.107.100
[   0.005][v][cplayer]    libswresample   2.9.100
[   0.005][v][cplayer] ffmpeg version: 3.4.2
[   0.005][v][cplayer] 
[   0.005][v][cplayer] Configuration: waf configure --prefix=/usr/local/Cellar/mpv/0.27.2 --enable-zsh-comp --enable-libmpv-shared --enable-html-build --enable-lua --confdir=/usr/local/etc/mpv --datadir=/usr/local/Cellar/mpv/0.27.2/share/mpv --mandir=/usr/local/Cellar/mpv/0.27.2/share/man --docdir=/usr/local/Cellar/mpv/0.27.2/share/doc/mpv --zshdir=/usr/local/Cellar/mpv/0.27.2/share/zsh/site-functions --enable-javascript
[   0.005][v][cplayer] List of enabled features: 51deb apple-remote asm atomics avutil-content-light-level avutil-icc-profile avutil-imgcpy-uc avutil-spherical bsd-fstatfs build-date cocoa coreaudio cplayer cplugins cuda-hwaccel debug-build encoding fchmod gl gl-cocoa glob glob-posix gnuc iconv is_ffmpeg javascript jpeg lcms2 libass libass-osd libav libavcodec libavdevice libdl libm libmpv-shared lua macos-touchbar nanosleep optimize osx-thread-name plain-gl posix posix-or-mingw posix-spawn pthreads shm stdatomic termios videotoolbox-gl videotoolbox-hwaccel videotoolbox-hwaccel-new zlib zsh-comp
[   0.005][v][cplayer] Command line options: 'https://www.youtube.com/watch?v=1Cs0qyG78qY' '-v' '-v' '-v' '--log-file=output.txt'
[   0.005][v][cplayer] mpv 0.27.2 (C) 2000-2017 mpv/MPlayer/mplayer2 projects
[   0.005][v][cplayer]  built on Wed Feb 14 13:44:09 GMT 2018
[   0.005][v][cplayer] ffmpeg library versions:
[   0.005][v][cplayer]    libavutil       55.78.100
[   0.005][v][cplayer]    libavcodec      57.107.100
[   0.005][v][cplayer]    libavformat     57.83.100
[   0.005][v][cplayer]    libswscale      4.8.100
[   0.005][v][cplayer]    libavfilter     6.107.100
[   0.006][v][cplayer]    libswresample   2.9.100
[   0.006][v][cplayer] ffmpeg version: 3.4.2
[   0.006][v][cplayer] 
[   0.006][v][cplayer] Configuration: waf configure --prefix=/usr/local/Cellar/mpv/0.27.2 --enable-zsh-comp --enable-libmpv-shared --enable-html-build --enable-lua --confdir=/usr/local/etc/mpv --datadir=/usr/local/Cellar/mpv/0.27.2/share/mpv --mandir=/usr/local/Cellar/mpv/0.27.2/share/man --docdir=/usr/local/Cellar/mpv/0.27.2/share/doc/mpv --zshdir=/usr/local/Cellar/mpv/0.27.2/share/zsh/site-functions --enable-javascript
[   0.006][v][cplayer] List of enabled features: 51deb apple-remote asm atomics avutil-content-light-level avutil-icc-profile avutil-imgcpy-uc avutil-spherical bsd-fstatfs build-date cocoa coreaudio cplayer cplugins cuda-hwaccel debug-build encoding fchmod gl gl-cocoa glob glob-posix gnuc iconv is_ffmpeg javascript jpeg lcms2 libass libass-osd libav libavcodec libavdevice libdl libm libmpv-shared lua macos-touchbar nanosleep optimize osx-thread-name plain-gl posix posix-or-mingw posix-spawn pthreads shm stdatomic termios videotoolbox-gl videotoolbox-hwaccel videotoolbox-hwaccel-new zlib zsh-comp
[   0.006][v][global] config path: '' -> '/Users/jonnevo/.config/mpv'
[   0.006][v][global] config path: 'encoding-profiles.conf' -/-> '/Users/jonnevo/.config/mpv/encoding-profiles.conf'
[   0.006][v][global] config path: 'encoding-profiles.conf' -/-> '/Users/jonnevo/.mpv/encoding-profiles.conf'
[   0.006][v][global] config path: 'encoding-profiles.conf' -/-> '/usr/local/bin/encoding-profiles.conf'
[   0.006][v][global] config path: 'encoding-profiles.conf' -> '/usr/local/etc/mpv/encoding-profiles.conf'
[   0.006][v][cplayer] Reading config file /usr/local/etc/mpv/encoding-profiles.conf
[   0.007][v][global] config path: 'mpv.conf' -/-> '/Users/jonnevo/.config/mpv/mpv.conf'
[   0.007][v][global] config path: 'config' -/-> '/Users/jonnevo/.config/mpv/config'
[   0.007][v][global] config path: 'mpv.conf' -/-> '/Users/jonnevo/.mpv/mpv.conf'
[   0.007][v][global] config path: 'config' -/-> '/Users/jonnevo/.mpv/config'
[   0.007][v][global] config path: 'mpv.conf' -/-> '/usr/local/bin/mpv.conf'
[   0.007][v][global] config path: 'config' -/-> '/usr/local/bin/config'
[   0.007][v][global] config path: 'mpv.conf' -/-> '/usr/local/etc/mpv/mpv.conf'
[   0.007][v][global] config path: 'config' -/-> '/usr/local/etc/mpv/config'
[   0.007][v][cplayer] Setting option 'v' = '' (flags = 8)
[   0.007][v][cplayer] Setting option 'v' = '' (flags = 8)
[   0.007][v][cplayer] Setting option 'v' = '' (flags = 8)
[   0.007][v][cplayer] Setting option 'log-file' = 'output.txt' (flags = 8)
[   0.010][v][global] config path: 'input.conf' -/-> '/Users/jonnevo/.config/mpv/input.conf'
[   0.010][v][global] config path: 'input.conf' -/-> '/Users/jonnevo/.mpv/input.conf'
[   0.010][v][global] config path: 'input.conf' -/-> '/usr/local/bin/input.conf'
[   0.010][v][global] config path: 'input.conf' -/-> '/usr/local/etc/mpv/input.conf'
[   0.010][v][global] user path: 'output.txt' -> 'output.txt'
[   0.010][v][osc] Loading lua script @osc.lua...
[   0.011][v][global] config path: 'scripts' -/-> '/Users/jonnevo/.config/mpv/scripts'
[   0.011][v][global] config path: 'scripts' -/-> '/Users/jonnevo/.mpv/scripts'
[   0.011][v][global] config path: 'scripts' -/-> '/usr/local/bin/scripts'
[   0.011][v][global] config path: 'scripts' -/-> '/usr/local/etc/mpv/scripts'
[   0.011][v][osc] loading mp.defaults
[   0.013][v][osc] loading @osc.lua
[   0.017][v][global] config path: 'lua-settings/osc.conf' -/-> '/Users/jonnevo/.config/mpv/lua-settings/osc.conf'
[   0.017][v][global] config path: 'lua-settings/osc.conf' -/-> '/Users/jonnevo/.mpv/lua-settings/osc.conf'
[   0.017][v][global] config path: 'lua-settings/osc.conf' -/-> '/usr/local/bin/lua-settings/osc.conf'
[   0.017][v][global] config path: 'lua-settings/osc.conf' -/-> '/usr/local/etc/mpv/lua-settings/osc.conf'
[   0.017][v][osc] lua-settings/osc.conf not found. 
[   0.017][v][cplayer] Run command: define-section, flags=0, args=[showhide, mouse_move script-binding osc/__keybinding1
[   0.017][v][cplayer] mouse_leave script-binding osc/__keybinding2
[   0.017][v][cplayer] , force]
[   0.033][v][cplayer] Run command: enable-section, flags=0, args=[showhide, allow-hide-cursor+allow-vo-dragging]
[   0.033][v][cplayer] Run command: define-section, flags=0, args=[input, mbtn_left script-binding osc/__keybinding3
[   0.033][v][cplayer] shift+mbtn_left script-binding osc/__keybinding4
[   0.033][v][cplayer] mbtn_right script-binding osc/__keybinding5
[   0.033][v][cplayer] wheel_up script-binding osc/__keybinding6
[   0.033][v][cplayer] wheel_down script-binding osc/__keybinding7
[   0.033][v][cplayer] mbtn_left_dbl ignore
[   0.033][v][cplayer] shift+mbtn_left_dbl ignore
[   0.034][v][cplayer] mbtn_right_dbl ignore
[   0.034][v][cplayer] , force]
[   0.034][v][cplayer] Run command: enable-section, flags=0, args=[input, ]
[   0.034][v][cplayer] Run command: define-section, flags=0, args=[input_osc, del script-binding osc/__keybinding8
[   0.034][v][cplayer] , default]
[   0.034][v][cplayer] Run command: enable-section, flags=0, args=[input_osc, allow-hide-cursor+allow-vo-dragging]
[   0.034][v][cplayer] Run command: define-section, flags=0, args=[input_forced_osc, , force]
[   0.034][v][cplayer] Run command: enable-section, flags=0, args=[input_forced_osc, allow-hide-cursor+allow-vo-dragging]
[   0.034][v][cplayer] Done loading @osc.lua.
[   0.034][v][ytdl_hook] Loading lua script @ytdl_hook.lua...
[   0.035][v][global] config path: 'scripts' -/-> '/Users/jonnevo/.config/mpv/scripts'
[   0.035][v][global] config path: 'scripts' -/-> '/Users/jonnevo/.mpv/scripts'
[   0.035][v][global] config path: 'scripts' -/-> '/usr/local/bin/scripts'
[   0.035][v][global] config path: 'scripts' -/-> '/usr/local/etc/mpv/scripts'
[   0.035][v][ytdl_hook] loading mp.defaults
[   0.035][v][cplayer] Run command: disable-section, flags=0, args=[input]
[   0.035][v][global] config path: 'fonts' -/-> '/Users/jonnevo/.config/mpv/fonts'
[   0.035][v][global] config path: 'fonts' -/-> '/Users/jonnevo/.mpv/fonts'
[   0.035][v][global] config path: 'fonts' -/-> '/usr/local/bin/fonts'
[   0.035][v][global] config path: 'fonts' -/-> '/usr/local/etc/mpv/fonts'
[   0.036][v][osd/libass] Shaper: FriBidi 0.19.7 (SIMPLE) HarfBuzz-ng 1.7.5 (COMPLEX)
[   0.036][v][global] config path: 'subfont.ttf' -/-> '/Users/jonnevo/.config/mpv/subfont.ttf'
[   0.036][v][global] config path: 'subfont.ttf' -/-> '/Users/jonnevo/.mpv/subfont.ttf'
[   0.036][v][global] config path: 'subfont.ttf' -/-> '/usr/local/bin/subfont.ttf'
[   0.036][v][global] config path: 'subfont.ttf' -/-> '/usr/local/etc/mpv/subfont.ttf'
[   0.036][v][global] config path: 'fonts.conf' -/-> '/Users/jonnevo/.config/mpv/fonts.conf'
[   0.036][v][global] config path: 'fonts.conf' -/-> '/Users/jonnevo/.mpv/fonts.conf'
[   0.036][v][global] config path: 'fonts.conf' -/-> '/usr/local/bin/fonts.conf'
[   0.036][v][global] config path: 'fonts.conf' -/-> '/usr/local/etc/mpv/fonts.conf'
[   0.036][v][osd/libass] Setting up fonts...
[   0.036][v][ytdl_hook] loading @ytdl_hook.lua
[   0.037][v][global] config path: 'lua-settings/ytdl_hook.conf' -/-> '/Users/jonnevo/.config/mpv/lua-settings/ytdl_hook.conf'
[   0.037][v][global] config path: 'lua-settings/ytdl_hook.conf' -/-> '/Users/jonnevo/.mpv/lua-settings/ytdl_hook.conf'
[   0.037][v][global] config path: 'lua-settings/ytdl_hook.conf' -/-> '/usr/local/bin/lua-settings/ytdl_hook.conf'
[   0.037][v][global] config path: 'lua-settings/ytdl_hook.conf' -/-> '/usr/local/etc/mpv/lua-settings/ytdl_hook.conf'
[   0.037][v][ytdl_hook] lua-settings/ytdl_hook.conf not found. 
[   0.037][v][cplayer] Run command: hook-add, flags=0, args=[on_load, 1, 10]
[   0.037][v][cplayer] Run command: hook-add, flags=0, args=[on_preloaded, 2, 10]
[   0.037][v][cplayer] Done loading @ytdl_hook.lua.
[   0.038][v][osd/libass] Using font provider coretext
[   0.038][v][osd/libass] Done.
[   0.154][v][global] config path: 'scripts' -/-> '/Users/jonnevo/.config/mpv/scripts'
[   0.154][v][global] config path: 'scripts' -/-> '/Users/jonnevo/.mpv/scripts'
[   0.154][v][global] config path: 'scripts' -/-> '/usr/local/bin/scripts'
[   0.154][v][global] config path: 'scripts' -/-> '/usr/local/etc/mpv/scripts'
[   0.154][v][global] config path: 'watch_later' -> '/Users/jonnevo/.config/mpv/watch_later'
[   0.155][i][cplayer] Playing: https://www.youtube.com/watch?v=1Cs0qyG78qY
[   0.155][v][cplayer] Running hook: ytdl_hook/on_load
[   0.155][v][global] config path: 'youtube-dl' -/-> '/Users/jonnevo/.config/mpv/youtube-dl'
[   0.155][v][global] config path: 'youtube-dl' -/-> '/Users/jonnevo/.mpv/youtube-dl'
[   0.155][v][global] config path: 'youtube-dl' -> '/usr/local/bin/youtube-dl'
[   0.155][v][ytdl_hook] found youtube-dl at: /usr/local/bin/youtube-dl 
[   4.444][v][ytdl_hook] youtube-dl succeeded! 
[   4.444][v][cplayer] Set property: file-local-options/user-agent="Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20150101 Firefox/47.0 (Chrome)" -> 1
[   4.444][v][cplayer] Set property: stream-open-filename="https://manifest.googlevideo.com/api/manifest/hls_playlist/id/1Cs0qyG78qY.0/itag/96/source/yt_live_broadcast/requiressl/yes/ratebypass/yes/live/1/cmbypass/yes/goi/160/sgoap/gir%3Dyes%3Bitag%3D140/sgovp/gir%3Dyes%3Bitag%3D137/hls_chunk_host/r1---sn-aiglln6e.googlevideo.com/playlist_type/DVR/ei/frWGWsP3LsTSVJnXhrgE/gcr/gb/mm/32/mn/sn-aiglln6e/ms/lv/mv/u/pl/22/dover/10/keepalive/yes/mt/1518777567/ip/80.169.28.98/ipbits/0/expire/1518799326/sparams/ip,ipbits,expire,id,itag,source,requiressl,ratebypass,live,cmbypass,goi,sgoap,sgovp,hls_chunk_host,playlist_type,ei,gcr,mm,mn,ms,mv,pl/signature/927792711F495355F86EA88FF26F4D1EAE5FA8B0.4D50E22A98C97BFA7C6390E7B96D5C7D72381A0E/key/dg_yt0/playlist/index.m3u8" -> 1
[   4.445][v][cplayer] Set property: file-local-options/force-media-title="lofi hip hop radio - beats to relax/study to" -> 1
[   4.445][v][cplayer] Run command: hook-ack, flags=0, args=[on_load]
[   4.447][v][ffmpeg] Opening https://manifest.googlevideo.com/api/manifest/hls_playlist/id/1Cs0qyG78qY.0/itag/96/source/yt_live_broadcast/requiressl/yes/ratebypass/yes/live/1/cmbypass/yes/goi/160/sgoap/gir%3Dyes%3Bitag%3D140/sgovp/gir%3Dyes%3Bitag%3D137/hls_chunk_host/r1---sn-aiglln6e.googlevideo.com/playlist_type/DVR/ei/frWGWsP3LsTSVJnXhrgE/gcr/gb/mm/32/mn/sn-aiglln6e/ms/lv/mv/u/pl/22/dover/10/keepalive/yes/mt/1518777567/ip/80.169.28.98/ipbits/0/expire/1518799326/sparams/ip,ipbits,expire,id,itag,source,requiressl,ratebypass,live,cmbypass,goi,sgoap,sgovp,hls_chunk_host,playlist_type,ei,gcr,mm,mn,ms,mv,pl/signature/927792711F495355F86EA88FF26F4D1EAE5FA8B0.4D50E22A98C97BFA7C6390E7B96D5C7D72381A0E/key/dg_yt0/playlist/index.m3u8
[   4.720][v][ffmpeg] Mime-type: 'application/vnd.apple.mpegurl'
[   4.720][v][ffmpeg] Stream opened successfully.
[   4.721][v][cache] no backbuffer needed
[   4.721][v][cache] Cache size set to 2932 KiB (32 KiB backbuffer)
[   4.721][v][demux] Trying demuxers for level=normal.
[   4.725][v][lavf] Found 'hls,applehttp' at score=100 size=2048.
[   4.842][v][cache] EOF reached.
[   5.028][v][ffmpeg/demuxer] hls,applehttp: HLS request for url 'https://r1---sn-aiglln6e.googlevideo.com/videoplayback/id/1Cs0qyG78qY.0/itag/96/source/yt_live_broadcast/requiressl/yes/ratebypass/yes/live/1/cmbypass/yes/goi/160/sgoap/gir%3Dyes%3Bitag%3D140/sgovp/gir%3Dyes%3Bitag%3D137/hls_chunk_host/r1---sn-aiglln6e.googlevideo.com/playlist_type/DVR/ei/frWGWsP3LsTSVJnXhrgE/gcr/gb/mm/32/mn/sn-aiglln6e/ms/lv/mv/u/pl/22/keepalive/yes/mt/1518777567/ip/80.169.28.98/ipbits/0/expire/1518799326/sparams/ip,ipbits,expire,id,itag,source,requiressl,ratebypass,live,cmbypass,goi,sgoap,sgovp,hls_chunk_host,playlist_type,ei,gcr,mm,mn,ms,mv,pl/signature/927792711F495355F86EA88FF26F4D1EAE5FA8B0.4D50E22A98C97BFA7C6390E7B96D5C7D72381A0E/key/dg_yt0/playlist/index.m3u8/sq/820076/goap/clen%3D48811%3Blmt%3D1518555819911403/govp/clen%3D456793%3Blmt%3D1518555819911409/dur/2.000/file/seg.ts', offset 0, playlist 0
[   5.028][v][ffmpeg/demuxer] hls,applehttp: Opening 'https://r1---sn-aiglln6e.googlevideo.com/videoplayback/id/1Cs0qyG78qY.0/itag/96/source/yt_live_broadcast/requiressl/yes/ratebypass/yes/live/1/cmbypass/yes/goi/160/sgoap/gir%3Dyes%3Bitag%3D140/sgovp/gir%3Dyes%3Bitag%3D137/hls_chunk_host/r1---sn-aiglln6e.googlevideo.com/playlist_type/DVR/ei/frWGWsP3LsTSVJnXhrgE/gcr/gb/mm/32/mn/sn-aiglln6e/ms/lv/mv/u/pl/22/keepalive/yes/mt/1518777567/ip/80.169.28.98/ipbits/0/expire/1518799326/sparams/ip,ipbits,expire,id,itag,source,requiressl,ratebypass,live,cmbypass,goi,sgoap,sgovp,hls_chunk_host,playlist_type,ei,gcr,mm,mn,ms,mv,pl/signature/927792711F495355F86EA88FF26F4D1EAE5FA8B0.4D50E22A98C97BFA7C6390E7B96D5C7D72381A0E/key/dg_yt0/playlist/index.m3u8/sq/820076/goap/clen%3D48811%3Blmt%3D1518555819911403/govp/clen%3D456793%3Blmt%3D1518555819911409/dur/2.000/file/seg.ts' for reading
[   5.172][v][ffmpeg/video] h264: Reinit context to 1920x1088, pix_fmt: yuv420p
[   5.232][v][lavf] avformat_find_stream_info() finished after 0 bytes.
[   5.232][v][demux] Detected file format: hls,applehttp (libavformat)
[   5.232][v][cache] blocking for STREAM_CTRL 6
[   5.232][v][cplayer] Opening done: https://manifest.googlevideo.com/api/manifest/hls_playlist/id/1Cs0qyG78qY.0/itag/96/source/yt_live_broadcast/requiressl/yes/ratebypass/yes/live/1/cmbypass/yes/goi/160/sgoap/gir%3Dyes%3Bitag%3D140/sgovp/gir%3Dyes%3Bitag%3D137/hls_chunk_host/r1---sn-aiglln6e.googlevideo.com/playlist_type/DVR/ei/frWGWsP3LsTSVJnXhrgE/gcr/gb/mm/32/mn/sn-aiglln6e/ms/lv/mv/u/pl/22/dover/10/keepalive/yes/mt/1518777567/ip/80.169.28.98/ipbits/0/expire/1518799326/sparams/ip,ipbits,expire,id,itag,source,requiressl,ratebypass,live,cmbypass,goi,sgoap,sgovp,hls_chunk_host,playlist_type,ei,gcr,mm,mn,ms,mv,pl/signature/927792711F495355F86EA88FF26F4D1EAE5FA8B0.4D50E22A98C97BFA7C6390E7B96D5C7D72381A0E/key/dg_yt0/playlist/index.m3u8
[   5.233][v][global] config path: 'sub' -/-> '/Users/jonnevo/.config/mpv/sub'
[   5.233][v][global] config path: 'sub' -/-> '/Users/jonnevo/.mpv/sub'
[   5.233][v][global] config path: 'sub' -/-> '/usr/local/bin/sub'
[   5.233][v][global] config path: 'sub' -/-> '/usr/local/etc/mpv/sub'
[   5.233][v][cplayer] Running hook: ytdl_hook/on_preloaded
[   5.233][v][cplayer] Run command: hook-ack, flags=0, args=[on_preloaded]
[   5.233][i][cplayer]  (+) Video --vid=1 (h264 1920x1080 30.000fps)
[   5.233][i][cplayer]  (+) Audio --aid=1 (aac 2ch 48000Hz)
[   5.234][v][vo/opengl] Initializing OpenGL backend 'cocoa'
[   5.235][v][vo/opengl] can't find an ambient light sensor
[   5.289][v][vo/opengl] GL_VERSION='4.1 INTEL-10.30.12'
[   5.290][v][vo/opengl] Detected desktop OpenGL 4.1.
[   5.290][v][vo/opengl] GL_VENDOR='Intel Inc.'
[   5.290][v][vo/opengl] GL_RENDERER='Intel(R) HD Graphics 530'
[   5.290][v][vo/opengl] GL_SHADING_LANGUAGE_VERSION='4.10'
[   5.302][v][vo/opengl] Loaded extension GL_APPLE_rgb_422.
[   5.304][v][vo/opengl] Testing FBO format rgba16
[   5.304][v][vo/opengl] Create FBO: 16x16 (16x16)
[   5.304][v][vo/opengl] Using FBO format rgba16.
[   5.304][v][vo/opengl] No advanced processing required. Enabling dumb mode.
[   5.304][v][vo/opengl] Reported display depth: -1
[   5.304][v][vo/opengl] Assuming 60.000877 FPS for display sync.
[   5.305][v][vd] Container reported FPS: 30.000000
[   5.305][v][vd] Codec list:
[   5.305][v][vd]     h264 - H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
[   5.305][v][vd] Opening video decoder h264
[   5.305][v][vd] Using software decoding.
[   5.305][v][vd] Detected 8 logical cores.
[   5.305][v][vd] Requesting 9 threads for decoding.
[   5.306][v][vd] Selected video codec: h264 (H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10)
[   5.307][v][ad] Codec list:
[   5.307][v][ad]     aac - AAC (Advanced Audio Coding)
[   5.307][v][ad]     aac_fixed (aac) - AAC (Advanced Audio Coding)
[   5.307][v][ad]     aac_at (aac) - aac (AudioToolbox)
[   5.307][v][ad] Opening audio decoder aac
[   5.307][v][ad] Requesting 1 threads for decoding.
[   5.307][v][ad] Selected audio codec: aac (AAC (Advanced Audio Coding))
[   5.307][v][cplayer] Starting playback...
[   5.308][v][af] Audio filter chain:
[   5.308][v][af]   [in] 48000Hz stereo 2ch floatp
[   5.308][v][af]   [out] 48000Hz stereo 2ch floatp
[   5.308][v][af]   [ao] 48000Hz stereo 2ch floatp
[   5.308][v][ao] Trying audio driver 'coreaudio'
[   5.308][v][ao/coreaudio] requested format: 48000 Hz, stereo channels, floatp
[   5.324][v][ao/coreaudio] selected audio output device: Built-in Output (48)
[   5.324][v][ao/coreaudio] input channel layout:
[   5.324][v][ao/coreaudio] layout: tag: <0>, bitmap: <0>, descriptions <2>
[   5.325][v][ao/coreaudio]  - description 0: label <4294967295, 64>,  flags: <0>, coords: <0.000000, 0.000000, 0.000000>
[   5.325][v][ao/coreaudio]  - description 1: label <4294967295, 64>,  flags: <0>, coords: <0.000000, 0.000000, 0.000000>
[   5.325][v][ao/coreaudio] mp chmap: unknown2
[   5.325][v][ao/coreaudio] input channel layout:
[   5.325][v][ao/coreaudio] layout: tag: <0>, bitmap: <0>, descriptions <2>
[   5.325][v][ao/coreaudio]  - description 0: label <1, 0>,  flags: <0>, coords: <0.000000, 0.000000, 0.000000>
[   5.325][v][ao/coreaudio]  - description 1: label <2, 1>,  flags: <0>, coords: <0.000000, 0.000000, 0.000000>
[   5.325][v][ao/coreaudio] mp chmap: stereo
[   5.325][v][ao/coreaudio] Channel layouts:
[   5.325][v][ao/coreaudio]  - stereo
[   5.325][v][ao/coreaudio]  - mono
[   5.325][v][ao/coreaudio] result: stereo
[   5.334][v][ao/coreaudio] Latency property cntl: 7 frames
[   5.334][v][ao/coreaudio] Latency property zisf: 512 frames
[   5.335][v][ao/coreaudio] Latency property tfas: 93 frames
[   5.335][v][ao/coreaudio] audiounit latency [us]: 354
[   5.335][v][ao/coreaudio] device latency [us]: 12749
[   5.335][v][ao/coreaudio] using soft-buffer of 9600 samples.
[   5.335][i][cplayer] AO: [coreaudio] 48000Hz stereo 2ch floatp
[   5.335][v][cplayer] AO: Description: CoreAudio AudioUnit
[   5.335][v][ffmpeg/video] h264: Reinit context to 1920x1088, pix_fmt: yuv420p
[   5.369][v][vd] Decoder format: 1920x1080 yuv420p auto/auto/auto/auto CL=mpeg2/4/h264 (auto 0.000000/0.000000/0.000000)
[   5.370][v][vf] Video filter chain:
[   5.370][v][vf]   [in] 1920x1080 yuv420p bt.709/bt.709/bt.1886/limited SP=1.000000 CL=mpeg2/4/h264
[   5.370][v][vf]   [out] 1920x1080 yuv420p bt.709/bt.709/bt.1886/limited SP=1.000000 CL=mpeg2/4/h264
[   5.370][i][cplayer] VO: [opengl] 1920x1080 yuv420p
[   5.370][v][cplayer] VO: Description: Extended OpenGL Renderer
[   5.529][v][vo/opengl] Resize: 3840x2160
[   5.529][v][vo/opengl] Window size: 3840x2160
[   5.529][v][vo/opengl] Video source: 1920x1080 (1:1)
[   5.529][v][vo/opengl] Video display: (0, 0) 1920x1080 -> (0, 0) 3840x2160
[   5.529][v][vo/opengl] Video scale: 2.000000/2.000000
[   5.529][v][vo/opengl] OSD borders: l=0 t=0 r=0 b=0
[   5.529][v][vo/opengl] Video borders: l=0 t=0 r=0 b=0
[   5.529][v][vo/opengl] Testing FBO format rgba16
[   5.529][v][vo/opengl] Create FBO: 16x16 (16x16)
[   5.529][v][vo/opengl] Using FBO format rgba16.
[   5.529][v][vo/opengl] No advanced processing required. Enabling dumb mode.
[   5.529][v][vo/opengl] Texture for plane 0: 1920x1080
[   5.529][v][vo/opengl] Texture for plane 1: 960x540
[   5.529][v][vo/opengl] Texture for plane 2: 960x540
[   5.529][v][vo/opengl] Resize: 3840x2160
[   5.529][v][vo/opengl] Window size: 3840x2160
[   5.529][v][vo/opengl] Video source: 1920x1080 (1:1)
[   5.529][v][vo/opengl] Video display: (0, 0) 1920x1080 -> (0, 0) 3840x2160
[   5.530][v][vo/opengl] Video scale: 2.000000/2.000000
[   5.530][v][vo/opengl] OSD borders: l=0 t=0 r=0 b=0
[   5.530][v][vo/opengl] Video borders: l=0 t=0 r=0 b=0
[   5.532][v][vo/opengl] new shader program:
[   5.532][v][vo/opengl] [  1] color.r = 1.000000 * vec4(texture(texture0, texcoord0)).r;
[   5.532][v][vo/opengl] [  2] color.g = 1.000000 * vec4(texture(texture1, texcoord1)).r;
[   5.532][v][vo/opengl] [  3] color.b = 1.000000 * vec4(texture(texture2, texcoord2)).r;
[   5.532][v][vo/opengl] [  4] color = color.rgbr;
[   5.532][v][vo/opengl] [  5] color.rgb = mat3(colormatrix) * color.rgb + colormatrix_c;
[   5.532][v][vo/opengl] [  6] color.a = 1.0;
[   5.532][v][vo/opengl] [  7] // color mapping
[   5.538][v][vo/opengl] shader link log (status=1): WARNING: Output of vertex shader 'texcoord5' not read by fragment shader
[   5.538][v][vo/opengl] WARNING: Output of vertex shader 'texcoord3' not read by fragment shader
[   5.538][v][vo/opengl] WARNING: Output of vertex shader 'texcoord4' not read by fragment shader
[   5.538][v][vo/opengl] 
[   5.580][v][osd/libass] fontselect: (sans-serif, 400, 0) -> /System/Library/Fonts/Helvetica.ttc, -1, Helvetica
[   5.621][v][cplayer] first video frame after restart shown
[   5.621][v][cplayer] starting audio playback
[   5.622][v][cplayer] playback restart complete
[   6.099][v][cplayer] Run command: script-binding, flags=9, args=[osc/__keybinding2]
[   7.260][v][cplayer] Enter buffering.
[  14.623][v][cplayer] Run command: quit, flags=9, args=[4]
[  14.623][v][cplayer] EOF code: 6  
[  14.623][v][ad] Uninit audio decoder.
[  14.626][v][vd] Uninit video.
[  14.688][e][ffmpeg] tls: IO Error: -9806
[  14.690][w][ffmpeg/demuxer] hls,applehttp: Failed to reload playlist 0
[  14.692][v][cache] Terminating cache...
[  14.692][v][cache] Cache exiting...
[  14.693][v][cplayer] finished playback, success (reason 3)
[  14.693][i][cplayer] 
[  14.693][i][cplayer] 
[  14.693][i][cplayer] Exiting... (Quit)
[  14.693][v][osx] Exiting...
[  14.693][v][ytdl_hook] Exiting...
[  14.694][v][osc] Exiting...
[  14.701][v][vo/opengl] flushing shader cache

[sfan5]

mpv 0.28.x contains some caching changes that should improve the streaming experience.
Have you tried updating?

[evolutionxbox]

It seems the latest version on homebrew is 0.27.2, and when I install with pip3 it does not seem to allow use through a cli zsh: command not found: mpv

[Argon-]

pip3 is python's package manager. Why would it contain mpv?
Uninstall mpv & ffmpeg in homebrew, then install:

brew install ffmpeg --HEAD
brew install mpv --HEAD

[evolutionxbox]

After following your instructions to update to the HEAD version of mpv the caching issue has been resolved.

This issue can now be marked as resolved.

---

How long does it usually take for homebrew versions to be updated?

Also, mpv does seem to exist in pip3.

$ pip3 search mpv
mpv (0.1)                    - A python interface to the mpv media player

Once installed it is not usable via terminal... ¯\_(ツ)_/¯

[Hrxn]

That on PIP is definitely something different...

[evolutionxbox]

Good to know. I'm kinda ignorant to pip3 and python, but thanks for your help nonetheless.