[FFmpeg-trac] #10073(ffmpeg:new): xstack stretches inputs vertically in some situations
FFmpeg
trac at avcodec.org
Fri Nov 25 18:56:22 EET 2022
#10073: xstack stretches inputs vertically in some situations
-------------------------------------+-------------------------------------
Reporter: | Type: defect
hans.baldzuhn |
Status: new | Priority: normal
Component: ffmpeg | Version:
| unspecified
Keywords: xstack | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
I'm on windows, with the lastest build from https://github.com/BtbN
/FFmpeg-Builds/releases
I want yo layout some images in a bigger image
If no image touches the bottom of the layout, the picture is stretched to
touch it.
How to reproduce:
I'm assembling a simple checker in a 3x6 xtack layout
Command with all checker on top line
{{{
ffmpeg -y -i C:\Users\hbaldzuhn\Pictures\checker.png -i
"C:\Users\hbaldzuhn\Pictures\checker.png" -i
"C:\Users\hbaldzuhn\Pictures\checker.png" -filter_complex
"[0:v]scale=64:64[v0];[1:v]scale=64:64[v1];[2:v]scale=64:64[v2];[v0][v1][v2]xstack=inputs=3:fill=black:layout=64_64|64_0|320_0"
-s 384x192 "C:\Users\hbaldzuhn\Pictures\checker.assembly1.png"
}}}
Command with 2 items on top line and 1 in midle line
{{{
ffmpeg -y -i C:\Users\hbaldzuhn\Pictures\checker.png -i
"C:\Users\hbaldzuhn\Pictures\checker.png" -filter_complex
"[0:v]scale=64:64[v0];[1:v]scale=64:64[v1];[v0][v1]xstack=inputs=2:fill=black:layout=64_0|320_0"
-s 384x192 "C:\Users\hbaldzuhn\Pictures\checker.assembly2.png"
}}}
Command with items on each lines
{{{
ffmpeg -y -i C:\Users\hbaldzuhn\Pictures\checker.png -i
"C:\Users\hbaldzuhn\Pictures\checker.png" -i
"C:\Users\hbaldzuhn\Pictures\checker.png" -i
"C:\Users\hbaldzuhn\Pictures\checker.png" -filter_complex
"[0:v]scale=64:64[v0];[1:v]scale=64:64[v1];[2:v]scale=64:64[v2];[3:v]scale=64:64[v3];[v0][v1][v2][v3]xstack=inputs=4:fill=black:layout=64_64|64_0|320_0|128_128"
-s 384x192 "C:\Users\hbaldzuhn\Pictures\checker.assembly3.png"
}}}
Full command and log
{{{
ffmpeg.exe -y -i C:\Users\hbaldzuhn\Pictures\checker.png -i
"C:\Users\hbaldzuhn\Pictures\checker.png" -i
"C:\Users\hbaldzuhn\Pictures\checker.png" -filter_complex
"[0:v]scale=64:64[v0];[1:v]scale=64:64[v1];[2:v]scale=64:64[v2];[v0][v1][v2]xstack=inputs=3:fill=black:layout=64_64|64_0|320_0"
-s 384x192 "C:\Users\hbaldzuhn\Pictures\checker.assembly1.png"
ffmpeg version N-109226-g2ad199ae31-20221125 Copyright (c) 2000-2022 the
FFmpeg developers
built with gcc 12.2.0 (crosstool-NG 1.25.0.90_cf9beb1)
configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static
--pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64
--target-os=mingw32 --enable-gpl --enable-version3 --disable-debug
--disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2
--enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp
--enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl
--disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib
--enable-amf --enable-libaom --enable-libaribb24 --enable-avisynth
--enable-chromaprint --enable-libdav1d --enable-libdavs2 --disable-libfdk-
aac --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme
--enable-libkvazaar --enable-libass --enable-libbluray --enable-libjxl
--enable-libmp3lame --enable-libopus --enable-librist --enable-libssh
--enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2
--disable-libmfx --enable-libvpl --enable-openal --enable-libopencore-
amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg
--enable-libopenmpt --enable-librav1e --enable-librubberband --enable-
schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1
--enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi
--enable-libvidstab --enable-vulkan --enable-libshaderc --enable-
libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-
libxvid --enable-libzimg --enable-libzvbi --extra-
cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread
--extra-ldexeflags= --extra-libs=-lgomp --extra-version=20221125
libavutil 57. 43.100 / 57. 43.100
libavcodec 59. 54.100 / 59. 54.100
libavformat 59. 34.102 / 59. 34.102
libavdevice 59. 8.101 / 59. 8.101
libavfilter 8. 50.101 / 8. 50.101
libswscale 6. 8.112 / 6. 8.112
libswresample 4. 9.100 / 4. 9.100
libpostproc 56. 7.100 / 56. 7.100
Input #0, png_pipe, from 'C:\Users\hbaldzuhn\Pictures\checker.png':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: png, rgba(pc), 240x240 [SAR 3780:3780 DAR 1:1], 25
fps, 25 tbr, 25 tbn
Input #1, png_pipe, from 'C:\Users\hbaldzuhn\Pictures\checker.png':
Duration: N/A, bitrate: N/A
Stream #1:0: Video: png, rgba(pc), 240x240 [SAR 3780:3780 DAR 1:1], 25
fps, 25 tbr, 25 tbn
Input #2, png_pipe, from 'C:\Users\hbaldzuhn\Pictures\checker.png':
Duration: N/A, bitrate: N/A
Stream #2:0: Video: png, rgba(pc), 240x240 [SAR 3780:3780 DAR 1:1], 25
fps, 25 tbr, 25 tbn
Stream mapping:
Stream #0:0 (png) -> scale:default
Stream #1:0 (png) -> scale:default
Stream #2:0 (png) -> scale:default
xstack:default -> Stream #0:0 (png)
Press [q] to stop, [?] for help
Output #0, image2, to 'C:\Users\hbaldzuhn\Pictures\checker.assembly1.png':
Metadata:
encoder : Lavf59.34.102
Stream #0:0: Video: png, rgba(pc, gbr/unknown/unknown, progressive),
384x192 [SAR 3:2 DAR 3:1], q=2-31, 200 kb/s, 25 fps, 25 tbn
Metadata:
encoder : Lavc59.54.100 png
[image2 @ 0000026068f376c0] The specified filename
'C:\Users\hbaldzuhn\Pictures\checker.assembly1.png' does not contain an
image sequence pattern or a pattern is invalid.
[image2 @ 0000026068f376c0] Use a pattern such as %03d for an image
sequence or use the -update option (with -frames:v 1 if needed) to write a
single image.
frame= 1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.00 bitrate=N/A speed=
0x
video:3kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
}}}
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/10073>
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