[FFmpeg-user] How does VLC player recognize a spherical video?
Paul B Mahol
onemda at gmail.com
Tue Aug 27 18:46:50 EEST 2019
On Tue, Aug 27, 2019 at 4:13 PM Michael Koch <astroelectronic at t-online.de>
wrote:
> Hello all,
>
> I have used the remap filter to make a video with size 1920x960 and the
> content is a spherical video in equirectangular projection. But VLC
> player doesn't recognize it as spherical, so I can't use the mouse to
> change the direction of view in VLC.
> I think (but I'm not sure) that some metadata must be added, so that VLC
> recognizes the video as spherical.
> I have another spherical video (not made with FFmpeg) that's running
> fine in VLC, and I did compare the metadata with ExifTool.
> Possibly these metadata must be added to my video:
> Projection Type = equirectangular
> Spherical = true
> Stitched = true
>
> How can I add these data to my video? I did try the following command
> line, but after checking with ExifTool this metadata isn't shown.
>
Google next time before you ask here.
You need special python tool available on github which inserts sidedata.
I dunno in what state is that tool now, seems pretty abandoned last time I
looked it.
>
> Michael
>
>
> F:\Little_Planet>c:\ffmpeg\ffmpeg -i equirect.mp4 -metadata
> Spherical="true" -me
> tadata Stitched="true" -metadata "Projection Type"="equirectangular" -y
> equirect
> _with_metadata.mp4
> ffmpeg version N-94646-g1cfba7fc75 Copyright (c) 2000-2019 the FFmpeg
> developers
>
> built with gcc 9.1.1 (GCC) 20190807
> configuration: --enable-gpl --enable-version3 --enable-sdl2
> --enable-fontconfi
> g --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d
> --enable-libb
> luray --enable-libfreetype --enable-libmp3lame
> --enable-libopencore-amrnb --enab
> le-libopencore-amrwb --enable-libopenjpeg --enable-libopus
> --enable-libshine --e
> nable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame
> --enable
> -libvpx --enable-libwavpack --enable-libwebp --enable-libx264
> --enable-libx265 -
> -enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib
> --enable-gmp --enab
> le-libvidstab --enable-libvorbis --enable-libvo-amrwbenc
> --enable-libmysofa --en
> able-libspeex --enable-libxvid --enable-libaom --enable-libmfx
> --enable-amf --en
> able-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc
> --enable-nvdec --e
> nable-dxva2 --enable-avisynth --enable-libopenmpt
> libavutil 56. 33.100 / 56. 33.100
> libavcodec 58. 55.101 / 58. 55.101
> libavformat 58. 31.102 / 58. 31.102
> libavdevice 58. 9.100 / 58. 9.100
> libavfilter 7. 58.101 / 7. 58.101
> libswscale 5. 6.100 / 5. 6.100
> libswresample 3. 6.100 / 3. 6.100
> libpostproc 55. 6.100 / 55. 6.100
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'equirect.mp4':
> Metadata:
> major_brand : isom
> minor_version : 512
> compatible_brands: isomiso2mp41
> encoder : Lavf58.31.102
> Duration: 00:00:10.00, start: 0.000000, bitrate: 20827 kb/s
> Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v /
> 0x7634706D), yuv420p
> , 1920x960 [SAR 1:1 DAR 2:1], 20825 kb/s, 25 fps, 25 tbr, 12800 tbn, 25
> tbc (def
> ault)
> Metadata:
> handler_name : VideoHandler
> Stream mapping:
> Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
> Press [q] to stop, [?] for help
> [libx264 @ 0000000000124d80] using SAR=1/1
> [libx264 @ 0000000000124d80] using cpu capabilities: MMX2 SSE2Fast SSSE3
> SSE4.2
> AVX FMA3 BMI2 AVX2
> [libx264 @ 0000000000124d80] profile High, level 4.0, 4:2:0, 8-bit
> [libx264 @ 0000000000124d80] 264 - core 158 r2984 3759fcb - H.264/MPEG-4
> AVC cod
> ec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options:
> cabac=1 r
> ef=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1
> psy_rd=1.00:0.00 mixed
> _ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11
> fast_pski
> p=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0
> nr=0 deci
> mate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3
> b_pyramid=2 b_
> adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250
> keyint_min=2
> 5 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
> qcomp=0.6
> 0 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
> Output #0, mp4, to 'equirect_with_metadata.mp4':
> Metadata:
> major_brand : isom
> minor_version : 512
> compatible_brands: isomiso2mp41
> Projection Type : equirectangular
> Spherical : true
> Stitched : true
> encoder : Lavf58.31.102
> Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661),
> yuv420p, 1920x9
> 60 [SAR 1:1 DAR 2:1], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
> Metadata:
> handler_name : VideoHandler
> encoder : Lavc58.55.101 libx264
> Side data:
> cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay:
> 1844674407370955
> 1615
> frame= 52 fps=0.0 q=28.0 size= 768kB time=-00:00:00.03 bitrate=N/A
> speed=N
> frame= 80 fps= 71 q=28.0 size= 768kB time=00:00:01.08
> bitrate=5825.4kbits/
> frame= 106 fps= 64 q=28.0 size= 768kB time=00:00:02.12
> bitrate=2967.7kbits/
> frame= 132 fps= 60 q=28.0 size= 768kB time=00:00:03.16
> bitrate=1991.0kbits/
> frame= 159 fps= 58 q=28.0 size= 768kB time=00:00:04.24
> bitrate=1483.9kbits/
> frame= 188 fps= 58 q=28.0 size= 768kB time=00:00:05.40
> bitrate=1165.1kbits/
> frame= 217 fps= 58 q=28.0 size= 768kB time=00:00:06.56 bitrate=
> 959.1kbits/
> frame= 246 fps= 58 q=28.0 size= 768kB time=00:00:07.72 bitrate=
> 815.0kbits/
> frame= 250 fps= 50 q=-1.0 Lsize= 868kB time=00:00:09.88 bitrate=
> 719.7kbits
> /s speed=1.97x
> video:864kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
> muxing o
> verhead: 0.435387%
> [libx264 @ 0000000000124d80] frame I:1 Avg QP:20.88 size:859040
> [libx264 @ 0000000000124d80] frame P:63 Avg QP:19.32 size: 202
> [libx264 @ 0000000000124d80] frame B:186 Avg QP:29.33 size: 67
> [libx264 @ 0000000000124d80] consecutive B-frames: 0.8% 0.0% 0.0% 99.2%
> [libx264 @ 0000000000124d80] mb I I16..4: 0.8% 51.9% 47.2%
> [libx264 @ 0000000000124d80] mb P I16..4: 0.0% 0.0% 0.0% P16..4:
> 1.1% 0.0
> % 0.0% 0.0% 0.0% skip:98.9%
> [libx264 @ 0000000000124d80] mb B I16..4: 0.0% 0.0% 0.0% B16..8:
> 0.1% 0.0
> % 0.0% direct: 0.0% skip:99.9% L0:38.7% L1:61.3% BI: 0.0%
> [libx264 @ 0000000000124d80] 8x8 transform intra:51.8% inter:73.7%
> [libx264 @ 0000000000124d80] coded y,uvDC,uvAC intra: 97.5% 97.9% 94.7%
> inter: 0
> .0% 0.3% 0.0%
> [libx264 @ 0000000000124d80] i16 v,h,dc,p: 30% 30% 39% 0%
> [libx264 @ 0000000000124d80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 19% 20%
> 6% 7%
> 7% 8% 8% 10%
> [libx264 @ 0000000000124d80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 9% 13%
> 9% 8%
> 11% 8% 11% 10%
> [libx264 @ 0000000000124d80] i8c dc,h,v,p: 44% 19% 23% 14%
> [libx264 @ 0000000000124d80] Weighted P-Frames: Y:0.0% UV:0.0%
> [libx264 @ 0000000000124d80] ref P L0: 92.0% 0.3% 3.1% 4.7%
> [libx264 @ 0000000000124d80] ref B L0: 73.3% 25.9% 0.8%
> [libx264 @ 0000000000124d80] ref B L1: 92.9% 7.1%
> [libx264 @ 0000000000124d80] kb/s:707.42
>
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