[FFmpeg-user] VP9 HLS

[Geoff Flarity]

Hi,

First thanks to the community of anyone who's contributed to ffmpeg and its
community in any way. How foundational it is to anything computer media
can't be overstated.

I'd like to be able to publish codec royalty-free bitrate/resolution
adaptive VODs that work with hls.js or other similar open source players. I
can get this working with MPEG-DASH, but it's not supported by apple
products unfortunately.

For the life of me I can't get it working using my ARM mac. Here's a
simplified example of what I've tried, I can include a link to the files if
that helps as well.

With libx264, which isn't royalty free, the following works perfectly:

ffmpeg -i ../Big_Buck_Bunny_1080_10s_30MB.mp4 -c:v libx264  -f hls test.m3u8


However if I switch the codec to libvpx-vp9 does not:

ffmpeg -i ../Big_Buck_Bunny_1080_10s_30MB.mp4 -c:v libvpx-vp9  -f hls
> foo.m3u8


Here's the full output from the command, but obviously "Stream 0, codec
vp9, is muxed as a private data stream and may not be recognized upon
reading." stands out. I just have no idea what this means and I couldn't
find anything after a bit of googling.

(base) geoff at geoffreys-mbp test % ffmpeg -i
> ../Big_Buck_Bunny_1080_10s_30MB.mp4 -c:v libvpx-vp9  -f hls foo.m3u8
> ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers
>   built with Apple clang version 14.0.3 (clang-1403.0.22.14.1)
>   configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/6.0 --enable-shared
> --enable-pthreads --enable-version3 --cc=clang --host-cflags=
> --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl
> --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d
> --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist
> --enable-librubberband --enable-libsnappy --enable-libsrt
> --enable-libsvtav1 --enable-libtesseract --enable-libtheora
> --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx
> --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2
> --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype
> --enable-frei0r --enable-libass --enable-libopencore-amrnb
> --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex
> --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack
> --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox
> --enable-neon
>   libavutil      58.  2.100 / 58.  2.100
>   libavcodec     60.  3.100 / 60.  3.100
>   libavformat    60.  3.100 / 60.  3.100
>   libavdevice    60.  1.100 / 60.  1.100
>   libavfilter     9.  3.100 /  9.  3.100
>   libswscale      7.  1.100 /  7.  1.100
>   libswresample   4. 10.100 /  4. 10.100
>   libpostproc    57.  1.100 / 57.  1.100
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
> '../Big_Buck_Bunny_1080_10s_30MB.mp4':
>   Metadata:
>     major_brand     : isom
>     minor_version   : 512
>     compatible_brands: isomiso2avc1mp41
>     title           : Big Buck Bunny, Sunflower version
>     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
>     composer        : Sacha Goedegebure
>     encoder         : Lavf57.63.100
>     comment         : Creative Commons Attribution 3.0 -
> http://bbb3d.renderfarming.net
>     genre           : Animation
>   Duration: 00:00:10.00, start: 0.000000, bitrate: 24563 kb/s
>   Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661),
> yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 24559 kb/s, 30 fps, 30
> tbr, 15360 tbn (default)
>     Metadata:
>       handler_name    : VideoHandler
>       vendor_id       : [0][0][0][0]
> Stream mapping:
>   Stream #0:0 -> #0:0 (h264 (native) -> vp9 (libvpx-vp9))
> Press [q] to stop, [?] for help
> [libvpx-vp9 @ 0x135705610] v1.13.0
> [libvpx-vp9 @ 0x135705610] Neither bitrate nor constrained quality
> specified, using default CRF of 32
> Output #0, hls, to 'foo.m3u8':
>   Metadata:
>     major_brand     : isom
>     minor_version   : 512
>     compatible_brands: isomiso2avc1mp41
>     title           : Big Buck Bunny, Sunflower version
>     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
>     composer        : Sacha Goedegebure
>     genre           : Animation
>     comment         : Creative Commons Attribution 3.0 -
> http://bbb3d.renderfarming.net
>     encoder         : Lavf60.3.100
>   Stream #0:0(und): Video: vp9, yuv420p(progressive), 1920x1080 [SAR 1:1
> DAR 16:9], q=2-31, 30 fps, 90k tbn (default)
>     Metadata:
>       handler_name    : VideoHandler
>       vendor_id       : [0][0][0][0]
>       encoder         : Lavc60.3.100 libvpx-vp9
>     Side data:
>       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
> [mpegts @ 0x135605f00] Stream 0, codec vp9, is muxed as a private data
> stream and may not be recognized upon reading.
> [hls @ 0x135704890] Opening 'foo0.ts' for writing.20 bitrate=N/A
> speed=0.202x
> [hls @ 0x135704890] Opening 'foo.m3u8.tmp' for writing
> [hls @ 0x135704890] Opening 'foo1.ts' for writing.46 bitrate=N/A
> speed=0.202x
> [hls @ 0x135704890] Opening 'foo.m3u8.tmp' for writing
> [hls @ 0x135704890] Opening 'foo2.ts' for writing.13 bitrate=N/A
> speed=0.204x
> [hls @ 0x135704890] Opening 'foo.m3u8.tmp' for writing
> frame=  300 fps=6.1 q=32.0 Lsize=N/A time=00:00:09.96 bitrate=N/A
> speed=0.203x
> video:6051kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
> muxing overhead: unknown


Thanks!
Geoff