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  • FFmpeg encode 8192x8192@60 with high quality from image sequence

    20 décembre 2017, par Daniel R.

    I am looking for the right ffmpeg config or an alternative software to encode a long sequence of images captured with 60fps and a resolution of 8192x8192 pixel.

    What i tried is to use h264 encoding, but at this high resolution it cannot be suitable since i couldnt play the encoded video.

    Using h265/HEVC i can play the video but i have nasty compression artifacts especially at the borders of the image.

    Here is the command i used with ffmpeg-3.4.1 at Windows 64-bit static Lib :

    .\ffmpeg.exe -framerate 60 -i ""E:\RenderedFrames\img%d.jpg"" -c:v libx265 -crf 28 output.mp4

    Here is the log of ffmpeg

    C:\ffmpeg-20171218-74f408c-win64-static\bin> .\ffmpeg.exe -framerate 60 -i ""D:\SansSousi\%d.jpg"" -c:v 
libx265 -crf 27 output3.mp4 
ffmpeg version git-2017-12-18-74f408c Copyright (c) 2000-2017 the FFmpeg developers 
built with gcc 7.2.0 (GCC) 
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-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 --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx 
libavutil 56. 6.100 / 56. 6.100 
libavcodec 58. 8.100 / 58. 8.100 
libavformat 58. 3.100 / 58. 3.100 
libavdevice 58. 0.100 / 58. 0.100 
libavfilter 7. 7.100 / 7. 7.100 
libswscale 5. 0.101 / 5. 0.101 
libswresample 3. 0.101 / 3. 0.101 
libpostproc 55. 0.100 / 55. 0.100 
Input #0, image2, from 'D:\SansSousi\%d.jpg': 
Duration: 00:00:03.02, start: 0.000000, bitrate: N/A 
Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 8192x8192 [SAR 1:1 DAR 1:1], 60 tbr, 60 tbn, 60 tbc 
Stream mapping: 
Stream #0:0 -> #0:0 (mjpeg (native) -> hevc (libx265)) 
Press [q] to stop, [?] for help 
[swscaler @ 0000027b64c702c0] deprecated pixel format used, make sure you did set range correctly 
x265 [info]: HEVC encoder version 2.6×6b079854e56e 
x265 [info]: build info [Windows][GCC 7.2.0][64 bit] 8bit 
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 
x265 [info]: Main profile, Level-8.5 (Main tier) 
x265 [info]: Thread pool created using 16 threads 
x265 [info]: Slices : 1 
x265 [info]: frame threads / pool features : 4 / wpp(128 rows) 
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8 
x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra 
x265 [info]: ME / range / subpel / merge : hex / 57 / 2 / 2 
x265 [info]: Keyframe min / max / scenecut / bias: 25 / 250 / 40 / 5.00 
x265 [info]: Lookahead / bframes / badapt : 20 / 4 / 2 
x265 [info]: b-pyramid / weightp / weightb : 1 / 1 / 0 
x265 [info]: References / ref-limit cu / depth : 3 / on / on 
x265 [info]: AQ: mode / str / qg-size / cu-tree : 1 / 1.0 / 32 / 1 
x265 [info]: Rate Control / qCompress : CRF-27.0 / 0.60 
x265 [info]: tools: rd=3 psy-rd=2.00 rskip signhide tmvp strong-intra-smoothing 
x265 [info]: tools: lslices=8 deblock sao 
Output #0, mp4, to 'output3.mp4': 
Metadata: 
encoder : Lavf58.3.100 
Stream #0:0: Video: hevc (libx265) (hev1 / 0x31766568), yuv420p, 8192x8192 [SAR 1:1 DAR 1:1], q=2-31, 60 fps, 15360 tbn, 60 tbc 
Metadata: 
encoder : Lavc58.8.100 libx265 
frame= 33 fps=1.8 q=-0.0 size= 1024kB time=00:00:00.00 bitrate=129060923.1kbits/s speed=3.63e-006x frame= 181 fps=1.1 q=-0.0 Lsize= 8112kB time=00:00:02.96 bitrate=22398.3kbits/s speed=0.0183x 
video:8107kB audio:0kB subtitle:0kB other streams:0kB global headers:2kB muxing overhead: 0.060955% 
x265 [info]: frame I: 1, Avg QP:28.18 kb/s: 528757.92 
x265 [info]: frame P: 36, Avg QP:30.76 kb/s: 36726.89 
x265 [info]: frame B: 144, Avg QP:35.78 kb/s: 14814.45 
x265 [info]: Weighted P-Frames: Y:0.0% UV:0.0% 
x265 [info]: consecutive B-frames: 2.7% 0.0% 0.0% 0.0% 97.3% 

encoded 181 frames in 161.36s (1.12 fps), 22012.19 kb/s, Avg QP:34.74

    What can i do to improve the quality of the encoded video? File size is secondary

  • FFMPEG color range cropped to 15-235 in RGB

    20 décembre 2017, par Some1Else

    I have a series of BMPs (or PNG) images that I want to convert to XVID and MP5 movie formats.

    Encoding works but the resulting movie has a washed out color look to it and the blacks are somehow moved to RGB 16 and the brightest 255 values are moved down to 235. I want the output movie to use the same 0 to 255 colors as the source frames.

    Now there are all sorts of conflicting doco out there for FFMPEG so I am hopinbg someone has an example command line that does what I need. I have tried all sorts of pix_fmt flags but none of them get the output movie in the full color range.

    For XVID

    ffmpeg.exe -framerate 60 -i "D:\SRC%05d.BMP"  -c:v mpeg4 -vtag xvid -qscale 1 -y "D:\OUTPUT.AVI""

    For H265

    ffmpeg.exe -framerate 60 -i "D:\SRC%05d.BMP" -c:v libx265 -x265-params lossless=1 -s 3840x2160 -pix_fmt yuvj420p -an -y "D:\OUTPUT.MP4""

    The yuvj420p is supposed to give the full color range but ffmpeg complains "Incompatible pixel format 'yuvj420p' for codec 'libx265', auto-selecting format 'yuv420p'"

    So, are there any FFMPEG gurus out there that can give me the magic switches to get my output movies with black blacks and colors that maintain the original frame files 0-255 RGB values.

  • How to ffmpeg livestream video from link google drive ?

    20 décembre 2017, par Kenji Nguyễn

    How to ffmpeg livestream video from link google drive?

    I tried to do this, but it doesn't work:

    for /F "delims=;" %%F in (linkdrive.txt) DO ffmpeg -re -i "%%F" -ar 44100 -vcodec copy -f flv "out.mp4"

  • incompatible types when assigning to type 'atomic_int' from type 'int'

    20 décembre 2017, par Lenge
    src/libavcodec/h264_slice.c: In function 'ff_h264_execute_decode_slices': src/libavcodec/h264_slice.c:2757:36: error: incompatible types when assigning to type 'atomic_int' from type 'int'
                 sl->er.error_count = 0;
                                    ^ src/libavcodec/h264_slice.c:2781:48: error: invalid operands to binary
+ (have 'atomic_int' and 'atomic_int')
                 h->slice_ctx[0].er.error_count += h->slice_ctx[i].er.error_count;
                                                ^ make: *** [libavcodec/h264_slice.o] Error 1 make: *** Waiting for unfinished jobs....

    I compile ffmpeg for android. whether the problem is my environment configure or source code?

  • Codec issue ? Mp4 video flashing during play via JW Player (and same issue with mac computer)

    19 décembre 2017, par janosdupai

    I have a linux based server online. It has Mp4 videos. I try to play these video with JW Player. I had any problems with them, but some files has the following problem: https://www.video.match-meeting.com/drive/5a350a6700bc4.mp4

    If I download this file to a windows computer, it plays without problem. Is that a codec problem with my server (and on my mac)?

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