I'm generating a video in /folder/ from a stack of images in /folder/tmp/ using the following command:
ffmpeg -pattern_type glob -i 'folder/tmp/*.png' -c:v libx264 -preset veryslow -crf 17 -tune stillimage -y -pix_fmt yuv420p folder/weight_evolution.mp4
but my video won't play in, for example, QuickTime ("The file isn’t compatible with QuickTime Player.") and even sending it in Telegram gives really strange results. The video plays fine in IINA and VLC.
As you can see, this is what is encoded by Telegram:
and this is what the video should look like:
The output of the command is:
ffmpeg -pattern_type glob -i 'tmp/*.png' -c:v libx264 -preset veryslow -crf 17 -tune stillimage -y -pix_fmt yuv420p weight_evolution.mp4
ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
built with Apple clang version 12.0.0 (clang-1200.0.32.28)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.1_7 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --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-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack
libavutil 56. 51.100 / 56. 51.100
libavcodec 58. 91.100 / 58. 91.100
libavformat 58. 45.100 / 58. 45.100
libavdevice 58. 10.100 / 58. 10.100
libavfilter 7. 85.100 / 7. 85.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 7.100 / 5. 7.100
libswresample 3. 7.100 / 3. 7.100
libpostproc 55. 7.100 / 55. 7.100
Input #0, image2, from 'tmp/*.png':
Duration: 00:00:10.28, start: 0.000000, bitrate: N/A
Stream #0:0: Video: png, rgba(pc), 1280x720 [SAR 3937:3937 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x7f804c009400] using SAR=1/1
[libx264 @ 0x7f804c009400] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7f804c009400] profile High, level 5.0, 4:2:0, 8-bit
[libx264 @ 0x7f804c009400] 264 - core 161 r3027 4121277 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=16 deblock=1:-3:-3 analyse=0x3:0x133 me=umh subme=10 psy=1 psy_rd=2.00:0.70 mixed_ref=1 me_range=24 chroma_me=1 trellis=2 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-4 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=8 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=60 rc=crf mbtree=1 crf=17.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.20
Output #0, mp4, to 'weight_evolution.mp4':
Metadata:
encoder : Lavf58.45.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc58.91.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame= 72 fps=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= frame= 126 fps=110 q=22.0 size= 0kB time=00:00:01.68 bitrate= 0.2kbits/frame= 185 fps=112 q=22.0 size= 0kB time=00:00:04.04 bitrate= 0.1kbits/frame= 245 fps=113 q=22.0 size= 0kB time=00:00:06.44 bitrate= 0.1kbits/frame= 257 fps= 97 q=-1.0 Lsize= 209kB time=00:00:10.16 bitrate= 168.7kbits/s speed=3.83x
video:206kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.448294%
[libx264 @ 0x7f804c009400] frame I:2 Avg QP: 4.16 size: 92234
[libx264 @ 0x7f804c009400] frame P:36 Avg QP:24.07 size: 156
[libx264 @ 0x7f804c009400] frame B:219 Avg QP:26.50 size: 93
[libx264 @ 0x7f804c009400] consecutive B-frames: 0.8% 0.0% 0.0% 1.6% 9.7% 23.3% 10.9% 18.7% 35.0%
[libx264 @ 0x7f804c009400] mb I I16..4: 87.5% 4.4% 8.2%
[libx264 @ 0x7f804c009400] mb P I16..4: 0.0% 0.0% 0.0% P16..4: 0.8% 0.0% 0.0% 0.0% 0.0% skip:99.1%
[libx264 @ 0x7f804c009400] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.3% 0.0% 0.0% direct: 0.0% skip:99.7% L0:71.2% L1:28.4% BI: 0.4%
[libx264 @ 0x7f804c009400] 8x8 transform intra:4.7% inter:22.5%
[libx264 @ 0x7f804c009400] direct mvs spatial:96.8% temporal:3.2%
[libx264 @ 0x7f804c009400] coded y,uvDC,uvAC intra: 14.7% 14.6% 14.6% inter: 0.0% 0.0% 0.0%
[libx264 @ 0x7f804c009400] i16 v,h,dc,p: 89% 2% 9% 0%
[libx264 @ 0x7f804c009400] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 40% 31% 1% 1% 1% 1% 1% 2%
[libx264 @ 0x7f804c009400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 41% 27% 22% 2% 2% 2% 1% 2% 2%
[libx264 @ 0x7f804c009400] i8c dc,h,v,p: 91% 4% 3% 2%
[libx264 @ 0x7f804c009400] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7f804c009400] ref P L0: 89.1% 0.5% 4.8% 1.1% 1.5% 0.7% 0.2% 0.9% 0.2% 0.1% 0.1% 0.3% 0.1% 0.2% 0.1% 0.1%
[libx264 @ 0x7f804c009400] ref B L0: 37.4% 17.9% 11.7% 7.0% 5.5% 5.5% 4.4% 2.0% 1.5% 1.6% 1.2% 1.9% 1.5% 0.7% 0.1%
[libx264 @ 0x7f804c009400] ref B L1: 92.0% 8.0%
[libx264 @ 0x7f804c009400] kb/s:163.83
question from:
https://stackoverflow.com/questions/65843863/ffmpeg-video-wont-play-in-certain-players 
