Dear list,
I have some issues related to the wrapping of a dpx imatge sequence into ffv1
in mkv container.
I get an error when I try to wrap a 6K 16bit image sequence: Invalid minimum
required packet size
I know I'm pushing a lot, but these are the original scanned images of a 35mm
negative film we get in our film archive's scanner.
This is my command output:
ffmpeg -f image2 -framerate 24 -start_number 0000000 -i "
C:\Temp\6K dpx 16bit\%06d.dpx" -strict -2 -c:v ffv1 -level 3 -g 1 -slicecrc 1 -
slices 16 C:\Temp\test.mkv
ffmpeg version N-82095-g5867234 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.4.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dx
va2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-lib
ebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --ena
ble-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfree
type --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enab
le-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-lib
openh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschr
oedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheor
a --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvo
rbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --ena
ble-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --e
nable-decklink --enable-zlib
libavutil 55. 33.100 / 55. 33.100
libavcodec 57. 63.103 / 57. 63.103
libavformat 57. 53.100 / 57. 53.100
libavdevice 57. 0.103 / 57. 0.103
libavfilter 6. 64.100 / 6. 64.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 2.100 / 2. 2.100
libpostproc 54. 0.100 / 54. 0.100
Input #0, image2, from 'C:\Temp\6K dpx 16bit\%06d.dpx':
Duration: 00:00:04.21, start: 0.000000, bitrate: N/A
Stream #0:0: Video: dpx, rgb48be, 6192x4668, 24 tbr, 24 tbn, 24 tbc
[ffv1 @ 0326f8e0] bits_per_raw_sample > 8, forcing range coder
Output #0, matroska, to 'C:\Temp\test.mkv':
Metadata:
encoder : Lavf57.53.100
Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), rgb48le, 6192x4668, q=2-31, 20
0 kb/s, 24 fps, 1k tbn, 24 tbc
Metadata:
encoder : Lavc57.63.103 ffv1
Stream mapping:
Stream #0:0 -> #0:0 (dpx (native) -> ffv1 (native))
Press [q] to stop, [?] for help
[ffv1 @ 0326f8e0] Invalid minimum required packet size 4277846272 (max allowed i
s 2147483615)
Video encoding failed
Conversion failed!
I ran this under windows 7 with a windows build of ffmpeg.
However, I just tried the same cmd under Macos (ffmpeg brewed) and it worked,
but with a warning:
Cannot allocate worst case packet size, the encoding could fail.
This is the output under Macos:
$ ffmpeg -f image2 -framerate 24 -start_number 0000000 -i "/Volumes/EDICIO-1/6K
dpx 16bit/%06d.dpx" -strict -2 -c:v ffv1 -level 3 -g 1 -slicecrc 1 -slices 16
"/Volumes/EDICIO-1/6K dpx 16bit/temp.mkv"
ffmpeg version 3.3.2 Copyright (c) 2000-2017 the FFmpeg developers
built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.3.2 --enable-shared
--enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables
--enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay
--enable-libfreetype --enable-libmp3lame --enable-librubberband
--enable-libtesseract --enable-libx264 --enable-libx265 --enable-libxvid
--enable-opencl --disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000
--extra-cflags=-I/usr/local/Cellar/openjpeg/2.1.2_1/include/openjpeg-2.1
--enable-vda
libavutil 55. 58.100 / 55. 58.100
libavcodec 57. 89.100 / 57. 89.100
libavformat 57. 71.100 / 57. 71.100
libavdevice 57. 6.100 / 57. 6.100
libavfilter 6. 82.100 / 6. 82.100
libavresample 3. 5. 0 / 3. 5. 0
libswscale 4. 6.100 / 4. 6.100
libswresample 2. 7.100 / 2. 7.100
libpostproc 54. 5.100 / 54. 5.100
Input #0, image2, from '/Volumes/EDICIO-1/6K dpx 16bit/%06d.dpx':
Duration: 00:00:04.21, start: 0.000000, bitrate: N/A
Stream #0:0: Video: dpx, rgb48be, 6192x4668, 24 tbr, 24 tbn, 24 tbc
Stream mapping:
Stream #0:0 -> #0:0 (dpx (native) -> ffv1 (native))
Press [q] to stop, [?] for help
[ffv1 @ 0x7f8053815a00] bits_per_raw_sample > 8, forcing range coder
Output #0, matroska, to '/Volumes/EDICIO-1/6K dpx 16bit/temp.mkv':
Metadata:
encoder : Lavf57.71.100
Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), rgb48le, 6192x4668, q=2-31,
200 kb/s, 24 fps, 1k tbn, 24 tbc
Metadata:
encoder : Lavc57.89.100 ffv1
[ffv1 @ 0x7f8053815a00] Cannot allocate worst case packet size, the encoding
could fail
Last message repeated 1 times
frame= 2 fps=1.2 q=-0.0 size= 45588kB time=00:00:00.04
bitrate=8684965.0kbi[ffv1 @ 0x7f8053815a00] Cannot allocate worst case packet
size, the encoding could fail
...(It keeps warning for every frame)...
frame= 101 fps=0.2 q=-0.0 size=10661728kB time=00:00:04.16
bitrate=20955104.3kbframe= 101 fps=0.2 q=-0.0 size=10661728kB time=00:00:04.16
bitrate=20955104.3kbframe= 101 fps=0.2 q=-0.0 Lsize=10792501kB
time=00:00:04.16 bitrate=21212131.9kbits/s speed=0.00658x
video:10792495kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.000055%
EDICIO-1:~ EDICIO1$
I don't really understand what the error and warning mean, can anybody
enlighten me?
I uploaded a dpx file at:
https://wetransfer.com/downloads/bdcf070cade355e680cb504e46c1e97820171106090602/e88690d48775c2cca865dee6c4e133f220171106090602/e9c08d
Regards,
Xavi Camara
Xavier Càmara
Centre de Conservació i Restauració
[cid:image001.png@01D356E8.93E5F900]
Carretera BV-1274 Km.1 Tel. 93 693 26 54 Ext. 15905
08225 Terrassa Email:
xcam...@gencat.cat<mailto:xcam...@gencat.cat>
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