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Sur d’autres sites (3799)

  • PyCharm terminal not detecting ffmpeg even after succesful installtion on Windows

    26 avril 2020, par Mandar

    I am working on Windows 10 and PyCharm 2019.2.6 Community Edition. I have followed all the steps for installing FFmpeg on windows. I'm currently working on a project in PyCharm. When I enter ffmpeg -h in command prompt, it works fine. However, when I enter the same command in PyCharm's terminal, it shows 'ffmpeg' is not recognized as an internal or external command,
operable program or batch file. I have added ffmpeg/bin to path as well.

    


  • How to build dense trajectory without sudoers permission

    8 février 2019, par Albe

    I’m stuck for a week trying to install iDT(https://github.com/chuckcho/iDT) in a server hosted by university in which I don’t have root permissions. (VERSION=12.04.5 LTS)

    I tried to install the 2 main libraries (opencv and ffmpeg) following part(different versions) of this tutorial : http://dridini.blogspot.com/

    I managed (I think) to install the libraries in local :

    ffmpeg -version
    
ffmpeg version N-93084-g835ab35 Copyright (c) 2000-2019 the FFmpeg developers
    
built with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
configuration: --prefix=/home/XXXXX/ffmpeg_build --extra-cflags=-I/home/XXXXX/ffmpeg_build/include --extra-ldflags=-L/home/XXXXX/ffmpeg_build/lib --bindir=/home/XXXXX/bin --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libmp3lame --enable-libvorbis --enable-libx264 --enable-pic --enable-shared
    
libavutil      56. 26.100 / 56. 26.100
    
libavcodec     58. 46.100 / 58. 46.100
    
libavformat    58. 26.100 / 58. 26.100
    
libavdevice    58.  6.101 / 58.  6.101
    
libavfilter     7. 48.100 /  7. 48.100
    
libswscale      5.  4.100 /  5.  4.100
    
libswresample   3.  4.100 /  3.  4.100
    
libpostproc    55.  4.100 / 55.  4.100 
    

    
pkg-config --modversion opencv
    
2.4.13.5

    I exported the LD_LIBRARY_PATH where all .so are.(I cannot perform ldconfig after)
    But when I try to make this is the result :

    g++ -L/home/chuck/opencv-2.4.11-cuda7.5/lib -L/opt/lib -pipe -Wall -O3 -ggdb -o release/DenseTrackStab  -lopencv_core -lopencv_highgui -lopencv_video -lopencv_imgproc -lopencv_calib3d -lopencv_features2d -lopencv_nonfree -lopencv_ocl -lavformat -lavdevice -lavutil -lavcodec -lswscale
    
/usr/bin/ld: cannot find -lopencv_core
    
/usr/bin/ld: cannot find -lopencv_highgui
    
/usr/bin/ld: cannot find -lopencv_video
    
/usr/bin/ld: cannot find -lopencv_imgproc
    
/usr/bin/ld: cannot find -lopencv_calib3d
    
/usr/bin/ld: cannot find -lopencv_features2d
    
/usr/bin/ld: cannot find -lopencv_nonfree
    
/usr/bin/ld: cannot find -lopencv_ocl
    
/usr/bin/ld: cannot find -lavformat
    
/usr/bin/ld: cannot find -lavdevice
    
/usr/bin/ld: cannot find -lavutil
    
/usr/bin/ld: cannot find -lavcodec
    
/usr/bin/ld: cannot find -lswscale
    
collect2: ld returned 1 exit status
    
make: *** [release/DenseTrackStab] Error 1

    I tried to modify the makeFile in order to add there the path or typing make with ldflag ( make "LDFLAGS=-L/$HOME/lib/opencv-2.4.13.5/lib/ -L/$HOME/ffmpeg_build/lib") giving me the same result :

    g++ -L/home/XXXXX/opencv-2.4.13.5/release/lib -L/opt/lib -pipe -Wall -O3 -ggdb -o release/DenseTrackStab  -lopencv_core -lopencv_highgui -lopencv_video -lopencv_imgproc -lopencv_calib3d -lopencv_features2d -lopencv_nonfree -lopencv_ocl -lavformat -lavdevice -lavutil -lavcodec -lswscale
    
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info): relocation 0 has invalid symbol index 10
    
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info): relocation 1 has invalid symbol index 11
    
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info): relocation 2 has invalid symbol index 2
    
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info): relocation 3 has invalid symbol index 2
    
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info): relocation 4 has invalid symbol index 10
    
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info): relocation 5 has invalid symbol index 12
    
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info): relocation 6 has invalid symbol index 12
    
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info): relocation 7 has invalid symbol index 12
    
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info): relocation 8 has invalid symbol index 2
    
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/crt1.o(.debug_info): relocation 9 has invalid symbol index 2

    This is the original Makefile

    # custom opencv
    
OPENCV_INC := /home/chuck/opencv-2.4.11-cuda7.5/include
    
OPENCV_LIB := /home/chuck/opencv-2.4.11-cuda7.5/lib
    

    
# set the binaries that have to be built
    
TARGETS := DenseTrackStab Video
    

    
# set the build configuration set 
    
BUILD := release
    
#BUILD := debug
    

    
# set bin and build dirs
    
BUILDDIR := .build_$(BUILD)
    
BINDIR := $(BUILD)
    

    
# libraries 
    
LDLIBS = $(addprefix -l, $(LIBS) $(LIBS_$(notdir $*)))
    
LIBS := \
    
    opencv_core opencv_highgui opencv_video opencv_imgproc opencv_calib3d opencv_features2d opencv_nonfree \
    
    opencv_ocl \
    
    avformat avdevice avutil avcodec swscale
    

    
# set some flags and compiler/linker specific commands
    
CXXFLAGS = -pipe -D __STDC_CONSTANT_MACROS -D STD=std -Wall $(CXXFLAGS_$(BUILD)) -I. -I$(OPENCV_INC) -I/opt/include
    
CXXFLAGS_debug := -ggdb
    
CXXFLAGS_release := -O3 -DNDEBUG -ggdb
    
LDFLAGS = -L$(OPENCV_LIB) -L/opt/lib -pipe -Wall $(LDFLAGS_$(BUILD))
    
LDFLAGS_debug := -ggdb
    
LDFLAGS_release := -O3 -ggdb
    

    
include make/generic.mk

    Is it possible what I’m trying to do or I must give up ? Any better solution for using this software ?
    thank you

  • FFmpeg disrupting "while/if" structure in Bash/shell scripting - how to fix ?

    25 avril 2020, par charles_river_runs

    I'm trying to extract a set number of frames from a series of .mp4 videos within several folders. I'm reading in variables from a CSV file, where each row of the CSV file contains the variables for each clip, which are : "dataset", "file name", "framelabel", "clip target start time", "clip target end time", "extract rate" (in seconds per frame), and "reason for exclusion."

    



    I'm using a while/if loop structure so I can avoid trying to process the videos that are excluded from our project.

    



    The while/if loop structure seems to work well when I just print out the variable names. However, when I insert a line of ffmpeg code, the variable assignments for the next video (ie, the following line read from the CSV file) go haywire.

    



    Here is the code WITHOUT the ffmpeg line, which seems to work (all the "echo" statements are just there as debugging aids to track the variable assignments) :

    



    IFS=‘,’
while read DATASET FILENAME FRAMELABEL TARGET_START TARGET_END TOTAL_DURATION EXTRACT_RATE REASON_FOR_EXCLUSION 
do  
echo “PRE FFMPEG”
echo “dataset and filename are “ $DATASET/$FILENAME
echo “target start is “ $TARGET_START
echo “target end is “ $TARGET_END

if [ $TARGET_START != EXCLUDED ] && [ $TARGET_START != Target_start ]
then
IFS=‘:’ 
read -r -a fps_array <<< "$EXTRACT_RATE"
IFS=‘,’
let "secs = ${fps_array[0]}*3600 + ${fps_array[1]}*60 + ${fps_array[2]}"
FPS_RATE=$(echo "scale=20;1/$secs" | bc)

echo “AFTER FFMPEG”
echo “dataset and filename are “ $DATASET/$FILENAME
echo “target start is “ $TARGET_START
echo “target end is “ $TARGET_END

fi
done < Test_Key.csv`



    



    The output for the code above looks like this, which is correct (I have 2 folders, "cats" and "es123", with two videos each ; one of the es123 videos is excluded from frame extraction) :

    



    “PRE FFMPEG”
“dataset and filename are “ cats/IMG_3460
“target start is “ 0:00:02
“target end is “ 0:00:24
“AFTER FFMPEG”
“dataset and filename are “ cats/IMG_3460
“target start is “ 0:00:02
“target end is “ 0:00:24
“PRE FFMPEG”
“dataset and filename are “ cats/IMG_4137
“target start is “ 0:00:10
“target end is “ 0:00:40
“AFTER FFMPEG”
“dataset and filename are “ cats/IMG_4137
“target start is “ 0:00:10
“target end is “ 0:00:40
“PRE FFMPEG”
“dataset and filename are “ es123/IMG_4577
“target start is “ EXCLUDED
“target end is “
“PRE FFMPEG”
“dataset and filename are “ es123/IMG_4839
“target start is “ 0:00:05
“target end is “ 0:00:25
“AFTER FFMPEG”
“dataset and filename are “ es123/IMG_4839
“target start is “ 0:00:05
“target end is “ 0:00:25


    



    However, I then try to add my ffmpeg line in that does the actual frame extraction :

    



    IFS=‘,’
while read DATASET FILENAME FRAMELABEL TARGET_START TARGET_END TOTAL_DURATION EXTRACT_RATE REASON_FOR_EXCLUSION 
do  
echo “PRE FFMPEG”
echo “dataset and filename are “ $DATASET/$FILENAME
echo “target start is “ $TARGET_START
echo “target end is “ $TARGET_END

if [ $TARGET_START != EXCLUDED ] && [ $TARGET_START != Target_start ]
then
IFS=‘:’ 
read -r -a fps_array <<< "$EXTRACT_RATE"
IFS=‘,’
let "secs = ${fps_array[0]}*3600 + ${fps_array[1]}*60 + ${fps_array[2]}"
FPS_RATE=$(echo "scale=20;1/$secs" | bc)

ffmpeg -i $DATASET/$FILENAME.mp4 -ss $TARGET_START -to $TARGET_END -vf fps=$FPS_RATE ${DATASET}/${DATASET}_${FILENAME}_%03d.jpg

echo “AFTER FFMPEG”
echo “dataset and filename are “ $DATASET/$FILENAME
echo “target start is “ $TARGET_START
echo “target end is “ $TARGET_END

fi
done < Test_Key.csv


    



    The result is that frames are correctly extracted for the first movie, but then the variable names for the second movie are completely screwed up (and then, of course, the code fails because the video names are wrong). You can see this in the 'echo' statements I used to track the variable naming, which become :

    



    “PRE FFMPEG”
“dataset and filename are “ cats/IMG_3460
“target start is “ 0:00:02
“target end is “ 0:00:24
“AFTER FFMPEG”
“dataset and filename are “ cats/IMG_3460
“target start is “ 0:00:02
“target end is “ 0:00:24
“PRE FFMPEG”
“dataset and filename are “ IMG_4839/es123_2
“target start is “ 0:00:25
“target end is “ 0:00:20


    



    Does anyone know why ffmpeg is affecting the functioning of the while/if loop structure here ? (I'm pretty new to shell scripting, sorry if this is something obvious). And what I can do to fix it ?

    



    Thank you !

    



    For reference, here is everything printed when I run the code with the ffmpeg line included— there are some parse errors showing up that I don't really understand but probably explain this.

    



    “PRE FFMPEG”&#xA;“dataset and filename are “ cats/IMG_3460&#xA;“target start is “ 0:00:02&#xA;“target end is “ 0:00:24&#xA;ffmpeg version 4.2.2-tessus  https://evermeet.cx/ffmpeg/  Copyright (c) 2000-2019 the FFmpeg developers&#xA;  built with Apple clang version 11.0.0 (clang-1100.0.33.16)&#xA;  configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay&#xA;  libavutil      56. 31.100 / 56. 31.100&#xA;  libavcodec     58. 54.100 / 58. 54.100&#xA;  libavformat    58. 29.100 / 58. 29.100&#xA;  libavdevice    58.  8.100 / 58.  8.100&#xA;  libavfilter     7. 57.100 /  7. 57.100&#xA;  libswscale      5.  5.100 /  5.  5.100&#xA;  libswresample   3.  5.100 /  3.  5.100&#xA;  libpostproc    55.  5.100 / 55.  5.100&#xA;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from &#x27;cats/IMG_3460.mp4&#x27;:&#xA;  Metadata:&#xA;    major_brand     : isom&#xA;    minor_version   : 512&#xA;    compatible_brands: isomiso2avc1mp41&#xA;    encoder         : Lavf58.29.100&#xA;  Duration: 00:00:25.15, start: 0.000000, bitrate: 6866 kb/s&#xA;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1080x1920, 6796 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)&#xA;    Metadata:&#xA;      handler_name    : Core Media Video&#xA;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 69 kb/s (default)&#xA;    Metadata:&#xA;      handler_name    : Core Media Audio&#xA;Stream mapping:&#xA;  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))&#xA;Press [q] to stop, [?] for help&#xA;&#xA;Enter command: <target>|all <time>|-1 <command>[ <argument>]&#xA;&#xA;Parse error, at least 3 arguments were expected, only 1 given in string &#x27;ats,IMG_4137,cats_2,0:00:10,0:00:40,0:00:30,0:00:03,none,,&#x27;&#xA;[swscaler @ 0x7fd3fc953400] deprecated pixel format used, make sure you did set range correctly&#xA;Output #0, image2, to &#x27;cats/cats_IMG_3460_%03d.jpg&#x27;:&#xA;  Metadata:&#xA;    major_brand     : isom&#xA;    minor_version   : 512&#xA;    compatible_brands: isomiso2avc1mp41&#xA;    encoder         : Lavf58.29.100&#xA;    Stream #0:0(und): Video: mjpeg, yuvj420p(pc), 1080x1920, q=2-31, 200 kb/s, 0.50 fps, 0.50 tbn, 0.50 tbc (default)&#xA;    Metadata:&#xA;      handler_name    : Core Media Video&#xA;      encoder         : Lavc58.54.100 mjpeg&#xA;    Side data:&#xA;      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1&#xA;frame=    8 fps=3.2 q=1.6 size=N/A time=00:00:16.00 bitrate=N/A speed=6.33x    0.00 bitrate=N/A speed=6.59x    &#xA;Enter command: <target>|all <time>|-1 <command>[ <argument>]&#xA;&#xA;Parse error, at least 3 arguments were expected, only 1 given in string &#x27;LUDED,,,,boring,,&#x27;&#xA;frame=   11 fps=3.0 q=2.6 L00120000000000000000000000000000size=N/A time=00:00:22.00 bitrate=N/A speed=6.06x    &#xA;video:803kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown&#xA;“AFTER FFMPEG”&#xA;“dataset and filename are “ cats/IMG_3460&#xA;“target start is “ 0:00:02&#xA;“target end is “ 0:00:24&#xA;“PRE FFMPEG”&#xA;“dataset and filename are “ IMG_4839/es123_2&#xA;“target start is “ 0:00:25&#xA;“target end is “ 0:00:20&#xA;-bash: let: secs = none*3600 &#x2B; *60 &#x2B; : syntax error: operand expected (error token is "*60 &#x2B; ")&#xA;ffmpeg version 4.2.2-tessus  https://evermeet.cx/ffmpeg/  Copyright (c) 2000-2019 the FFmpeg developers&#xA;  built with Apple clang version 11.0.0 (clang-1100.0.33.16)&#xA;  configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay&#xA;  libavutil      56. 31.100 / 56. 31.100&#xA;  libavcodec     58. 54.100 / 58. 54.100&#xA;  libavformat    58. 29.100 / 58. 29.100&#xA;  libavdevice    58.  8.100 / 58.  8.100&#xA;  libavfilter     7. 57.100 /  7. 57.100&#xA;  libswscale      5.  5.100 /  5.  5.100&#xA;  libswresample   3.  5.100 /  3.  5.100&#xA;  libpostproc    55.  5.100 / 55.  5.100&#xA;IMG_4839/es123_2.mp4: No such file or directory&#xA;“AFTER FFMPEG”&#xA;“dataset and filename are “ IMG_4839/es123_2&#xA;“target start is “ 0:00:25&#xA;“target end is “ 0:00:20&#xA;</argument></command></time></target></argument></command></time></target>

    &#xA;

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