Convert EXR file sequence with FFmpeg and x264-Collection of common programming errors
slhckWhen I convert an EXR sequence into a QuickTime MOV file using FFmpeg and the x264 codec, it codes the video – but in QuickTime Player and Windows Media Player it’s just black!
But when I open it up with VLC I can see the image and it looks fine. When I try the same thing with a JPG sequence instead of EXR it works perfectly! Does anyone have an idea what that could be?
Here is my FFmpeg code:
ffmpeg -y -i C:/seq_v001.%04d.exr -c:v libx264 -preset slow -crf 17 C:/out.mov
Here is the console output:
ffmpeg version N-47062-g26c531c Copyright (c) 2000-2012 the FFmpeg developers built on Nov 25 2012 12:25:21 with gcc 4.7.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-pthreads --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib libavutil 52. 9.100 / 52. 9.100 libavcodec 54. 77.100 / 54. 77.100 libavformat 54. 37.100 / 54. 37.100 libavdevice 54. 3.100 / 54. 3.100 libavfilter 3. 23.102 / 3. 23.102 libswscale 2. 1.102 / 2. 1.102 libswresample 0. 17.101 / 0. 17.101 libpostproc 52. 2.100 / 52. 2.100 [image2 @ 000000000025e4c0] Stream #0: not enough frames to estimate rate; consider increasing probesize Input #0, image2, from 'C:/seq_v001.%04d.exr': Duration: 00:00:04.00, start: 0.000000, bitrate: N/A Stream #0:0: Video: exr, rgb48le, 1920x1080 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn, 25 tbc [libx264 @ 0000000001fd0ea0] using SAR=1/1 [libx264 @ 0000000001fd0ea0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 [libx264 @ 0000000001fd0ea0] profile High 4:4:4 Predictive, level 5.0, 4:4:4 8-bit [libx264 @ 0000000001fd0ea0] 264 - core 128 r2216 198a7ea - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 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_pskip=1 chroma_qp_offset=4 threads=18 lookahead_threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 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=50 rc=crf mbtree=1 crf=17.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mov, to 'C:/out.mov': Metadata: encoder : Lavf54.37.100 Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv444p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 12800 tbn, 25 tbc Stream mapping: Stream #0:0 -> #0:0 (exr -> libx264) Press [q] to stop, [?] for help [exr @ 0000000001fddea0] Found more than one compression attribute [exr @ 0000000001fdda40] Found more than one compression attribute [exr @ 0000000001fde2e0] Found more than one compression attribute [exr @ 0000000001fde740] Found more than one compression attribute [exr @ 0000000001fdeb80] Found more than one compression attribute [exr @ 0000000001fdefe0] Found more than one compression attribute frame= 7 fps=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate= 0.0kbits/s Found more than one compression attribute [exr @ 0000000001fdf880] Found more than one compression attribute [exr @ 0000000001fdfcc0] Found more than one compression attribute [exr @ 0000000001fe0120] Found more than one compression attribute [exr @ 0000000001fe0560] Found more than one compression attribute [exr @ 0000000001fe09c0] Found more than one compression attribute [exr @ 0000000001fe0e00] Found more than one compression attribute [exr @ 0000000001fddea0] Found more than one compression attribute [exr @ 0000000001fdda40] Found more than one compression attribute [exr @ 0000000001fde2e0] Found more than one compression attribute frame= 17 fps= 16 q=0.0 size= 0kB time=00:00:00.00 bitrate= 0.0kbits/s Found more than one compression attribute [exr @ 0000000001fdeb80] Found more than one compression attribute [exr @ 0000000001fdefe0] Found more than one compression attribute [exr @ 0000000001fdf420] Found more than one compression attribute [exr @ 0000000001fdf880] Found more than one compression attribute [exr @ 0000000001fdfcc0] Found more than one compression attribute [exr @ 0000000001fe0120] Found more than one compression attribute [exr @ 0000000001fe0560] Found more than one compression attribute [exr @ 0000000001fe09c0] Found more than one compression attribute [exr @ 0000000001fe0e00] Found more than one compression attribute [exr @ 0000000001fddea0] Found more than one compression attribute frame= 28 fps= 18 q=0.0 size= 0kB time=00:00:00.00 bitrate= 0.0kbits/s Found more than one compression attribute [exr @ 0000000001fde2e0] Found more than one compression attribute [exr @ 0000000001fde740] Found more than one compression attribute [exr @ 0000000001fdeb80] Found more than one compression attribute [exr @ 0000000001fdefe0] Found more than one compression attribute [exr @ 0000000001fdf420] Found more than one compression attribute [exr @ 0000000001fdf880] Found more than one compression attribute [exr @ 0000000001fdfcc0] Found more than one compression attribute [exr @ 0000000001fe0120] Found more than one compression attribute [exr @ 0000000001fe0560] Found more than one compression attribute [exr @ 0000000001fe09c0] Found more than one compression attribute frame= 39 fps= 19 q=0.0 size= 0kB time=00:00:00.00 bitrate= 0.0kbits/s Found more than one compression attribute [exr @ 0000000001fddea0] Found more than one compression attribute [exr @ 0000000001fdda40] Found more than one compression attribute [exr @ 0000000001fde2e0] Found more than one compression attribute [exr @ 0000000001fde740] Found more than one compression attribute [exr @ 0000000001fdeb80] Found more than one compression attribute [exr @ 0000000001fdefe0] Found more than one compression attribute [exr @ 0000000001fdf420] Found more than one compression attribute [exr @ 0000000001fdf880] Found more than one compression attribute [exr @ 0000000001fdfcc0] Found more than one compression attribute [exr @ 0000000001fe0120] Found more than one compression attribute frame= 50 fps= 19 q=0.0 size= 0kB time=00:00:00.00 bitrate= 0.0kbits/s Found more than one compression attribute [exr @ 0000000001fe09c0] Found more than one compression attribute [exr @ 0000000001fe0e00] Found more than one compression attribute [exr @ 0000000001fddea0] Found more than one compression attribute [exr @ 0000000001fdda40] Found more than one compression attribute [exr @ 0000000001fde2e0] Found more than one compression attribute [exr @ 0000000001fde740] Found more than one compression attribute frame= 57 fps= 16 q=0.0 size= 0kB time=00:00:00.00 bitrate= 0.0kbits/s Found more than one compression attribute [exr @ 0000000001fdefe0] Found more than one compression attribute [exr @ 0000000001fdf420] Found more than one compression attribute [exr @ 0000000001fdf880] Found more than one compression attribute [exr @ 0000000001fdfcc0] Found more than one compression attribute [exr @ 0000000001fe0120] Found more than one compression attribute [exr @ 0000000001fe0560] Found more than one compression attribute [exr @ 0000000001fe09c0] Found more than one compression attribute [exr @ 0000000001fe0e00] Found more than one compression attribute frame= 66 fps= 17 q=0.0 size= 0kB time=00:00:00.00 bitrate= 0.0kbits/s Found more than one compression attribute [exr @ 0000000001fdda40] Found more than one compression attribute [exr @ 0000000001fde2e0] Found more than one compression attribute [exr @ 0000000001fde740] Found more than one compression attribute [exr @ 0000000001fdeb80] Found more than one compression attribute [exr @ 0000000001fdefe0] Found more than one compression attribute [exr @ 0000000001fdf420] Found more than one compression attribute [exr @ 0000000001fdf880] Found more than one compression attribute frame= 74 fps= 16 q=22.0 size= 255kB time=00:00:00.00 bitrate= 0.0kbits/s Found more than one compression attribute [exr @ 0000000001fe0120] Found more than one compression attribute [exr @ 0000000001fe0560] Found more than one compression attribute [exr @ 0000000001fe09c0] Found more than one compression attribute [exr @ 0000000001fe0e00] Found more than one compression attribute frame= 79 fps= 16 q=22.0 size= 467kB time=00:00:00.20 bitrate=19134.5kbits/s Found more than one compression attribute [exr @ 0000000001fdda40] Found more than one compression attribute [exr @ 0000000001fde2e0] Found more than one compression attribute [exr @ 0000000001fde740] Found more than one compression attribute frame= 83 fps= 15 q=22.0 size= 652kB time=00:00:00.36 bitrate=14829.5kbits/s Found more than one compression attribute [exr @ 0000000001fdefe0] Found more than one compression attribute [exr @ 0000000001fdf420] Found more than one compression attribute [exr @ 0000000001fdf880] Found more than one compression attribute [exr @ 0000000001fdfcc0] Found more than one compression attribute frame= 100 fps= 15 q=22.0 size= 1505kB time=-577014:-32:-22.-77 bitrate= -0.0kbits/s frame= 100 fps=9.6 q=-1.0 Lsize= 3831kB time=00:00:03.92 bitrate=8006.7kbits/s video:3829kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.050698% [libx264 @ 0000000001fd0ea0] frame I:1 Avg QP:18.35 size:168478 [libx264 @ 0000000001fd0ea0] frame P:31 Avg QP:16.10 size: 83540 [libx264 @ 0000000001fd0ea0] frame B:68 Avg QP:20.34 size: 17093 [libx264 @ 0000000001fd0ea0] consecutive B-frames: 7.0% 4.0% 9.0% 80.0% [libx264 @ 0000000001fd0ea0] mb I I16..4: 22.6% 67.9% 9.4% [libx264 @ 0000000001fd0ea0] mb P I16..4: 1.3% 7.3% 0.6% P16..4: 20.3% 10.1% 5.7% 0.0% 0.0% skip:54.6% [libx264 @ 0000000001fd0ea0] mb B I16..4: 0.2% 0.8% 0.1% B16..8: 30.8% 4.8% 1.2% direct: 1.5% skip:60.6% L0:46.0% L1:48.6% BI: 5.4% [libx264 @ 0000000001fd0ea0] 8x8 transform intra:76.0% inter:78.8% [libx264 @ 0000000001fd0ea0] direct mvs spatial:85.3% temporal:14.7% [libx264 @ 0000000001fd0ea0] coded y,u,v intra: 87.8% 56.3% 53.3% inter: 13.0% 6.1% 5.0% [libx264 @ 0000000001fd0ea0] i16 v,h,dc,p: 12% 9% 24% 55% [libx264 @ 0000000001fd0ea0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 8% 32% 7% 11% 8% 9% 7% 9% [libx264 @ 0000000001fd0ea0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 8% 5% 8% 23% 14% 11% 9% 11% [libx264 @ 0000000001fd0ea0] Weighted P-Frames: Y:0.0% UV:0.0% [libx264 @ 0000000001fd0ea0] ref P L0: 40.6% 9.5% 25.3% 13.3% 9.3% 2.1% [libx264 @ 0000000001fd0ea0] ref B L0: 64.9% 24.5% 8.7% 1.9% [libx264 @ 0000000001fd0ea0] ref B L1: 89.8% 10.2% [libx264 @ 0000000001fd0ea0] kb/s:7841.10
slhckYou’re converting video using the YUV 4:4:4 color space. This is not really standard – most (some?) players will only support the chroma-subsampled YUV 4:2:0 planar, including Windows Media Player and QuickTime.
Your JPEG images will typically use YUV 4:2:0 subsampling (
yuvj420p
), so FFmpeg will produce compatible video by default.Try encoding the video with
-pix_fmt yuv420p
instead:ffmpeg -y -i C:/seq_v001.%04d.exr -c:v libx264 -pix_fmt yuv420p -preset slow -crf 17 C:/out.mov
You probably won’t notice any huge quality loss compared to the non-subsampled version – the eye isn’t as sensitive to color information as it is to spatial information.