Fetch frame count with ffmpeg

Question

Does anyone know how to fetch the number of total frames from a video file using ffmpeg  The render output of ffmpeg shows the current frame and I need the frame count to calculate the progress in percent

User · Answer

I use the php ffmpeg then I can get all the times and all the frames of an movie   As belows   input file   home strone workspace play CI abc rmvb    ffmpegObj   new ffmpeg movie  input file   echo  ffmpegObj- gt getDuration        echo  ffmpegObj- gt getFrameCount      And then the detail is on the page   http   ffmpeg-php sourceforge net doc api ffmpeg movie php

User · Answer

Sorry for the necro answer  but maybe will need this  as I didn t found a solution for recent ffmpeg releases   With ffmpeg 3 3 4 I found one can find with the following   ffprobe -i video mp4 -show streams -hide banner   grep  nb frames    At the end it will output frame count  It worked for me on videos with audio  It gives twice a  nb frames  line  though  but the first line was the actual frame count on the videos I tested

User · Answer

In Unix  this works like a charm  ffmpeg -i 00000 avi -vcodec copy -acodec copy -f null  dev null 2 gt  amp 1                                               grep  frame     cut -f 2 -d

User · Answer

You can use ffprobe  to get frame number with the following commands   first method   ffprobe exe -i video name -print format json -loglevel fatal -show streams -count frames -select streams v  which tell to print data in json format  select streams v will tell ffprobe to just give us video stream data and if you remove it  it will give you audio information as well  and the output will be like          streams                            index   0               codec name    mpeg4                codec long name    MPEG-4 part 2                profile    Simple Profile                codec type    video                codec time base    1 25                codec tag string    mp4v                codec tag    0x7634706d                width   640               height   480               coded width   640               coded height   480               has b frames   1               sample aspect ratio    1 1                display aspect ratio    4 3                pix fmt    yuv420p                level   1               chroma location    left                refs   1               quarter sample    0                divx packed    0                r frame rate    10 1                avg frame rate    10 1                time base    1 3000                start pts   0               start time    0 00 00 000000                duration ts   256500               duration    0 01 25 500000                bit rate    261 816000 Kbit s                nb frames    855                nb read frames    855                disposition                      default   1                   dub   0                   original   0                   comment   0                   lyrics   0                   karaoke   0                   forced   0                   hearing impaired   0                   visual impaired   0                   clean effects   0                   attached pic   0                             tags                      creation time    2005-10-17 22 54 33                    language    eng                    handler name    Apple Video Media Handler                    encoder    3ivx D4 4 5 1                                    2  you can use   ffprobe -v error -show format -show streams video name   which will give you stream data  if you want selected information like frame rate  use the following command  ffprobe -v error -select streams v 0 -show entries stream avg frame rate -of default noprint wrappers 1 nokey 1 video name   which give a number base on your video information  the problem is when you use this method  its possible you get a N A as output   for more information check this page FFProbe Tips

User · Answer

to build on stu s answer  here s how i found the frame rate for a video from my mobile phone  i ran the following command for a while  i let the frame count get up to about   10 000 before i got impatient and hit  C     ffmpeg -i 2013-07-07  12 00 59 mp4 -f null  dev null 2 gt  amp 1     Press  q  to stop      for help  null   0x7fcc80836000  Encoder did not produce proper pts  making some up  frame  7989 fps  92 q 0 0 Lsize N A time 00 04 26 30 bitrate N A dup 10 drop 0     video 749kB audio 49828kB subtitle 0 global headers 0kB muxing overhead -100 000042  Received signal 2  terminating      then  i grabbed two pieces of information from that line which starts with  frame    the frame count  7989  and the time  00 04 26 30  You first need to convert the time into seconds and then divide the number of frames by seconds to get  frames per second     frames per second  is your frame rate     bc -l 0 60 60   4 60   26 3 266 3  7989  4 60 26 3  30 00000000000000000000     the framerate for my video is 30 fps

User · Answer

Not all formats store their frame count or total duration - and even if they do  the file might be incomplete - so ffmpeg doesn t detect either of them accurately by default   Instead  try seeking to the end of the file and read the time  then count the current time while you go   Alternatively  you can try AVFormatContext- gt nb index entries or the detected duration  which should work on fine at least undamaged AVI MOV  or the library FFMS2  which is probably too slow to bother with for a progress bar

User · Answer

linux  ffmpeg -i   home iorigins              123 mov  -f null  dev null   ruby  result    ffmpeg -i   path  -f null - 2 gt  amp 1  r   result match  frame   0-9      p r 1

User · Answer

The only accurate I ve been able to do this is the following   ffprobe -i my video mp4 -show frames 2 gt  amp 1 grep -c     FRAME    To make sure this works with video   ffprobe -i my video mp4 -show frames 2 gt  amp 1   grep -c media type video

User · Answer

Calculate it based on time  instead  That s what I do and it works great for me  and many others  First  find the length of the video in the below snippet  Seems stream 0 codec frame rate differs from container frame rate  5994 00   5994 1  - gt  29 97  30000 1001  Input  0  mov mp4 m4a 3gp 3g2 mj2  from   Users stu Movies District9 mov     Duration  00 02 32 20  start  0 000000  bitrate  9808 kb s     Stream  0 0 eng   Video  h264  yuv420p  1920x1056  29 97tbr  2997tbn  5994tbc     Stream  0 1 eng   Audio  aac  44100 Hz  2 channels  s16     Stream  0 2 eng   Data  tmcd   0x64636D74  You ll should be able to consistently and safely find       Duration  hh mm ss nn to determine the source video clip size   Then  for each update line  CR  no LF  you can parse the text for the current time mark it is at  frame    84 fps  18 q 10 0 size        5kB time 1 68 bitrate   26 1kbits s     frame    90 fps  17 q 10 0 size        6kB time 1 92 bitrate   23 8kbits s     frame    94 fps  16 q 10 0 size      232kB time 2 08 bitrate  913 0kbits s      Just be careful to not always expect perfect output from these status lines   They can include error messages like here  frame    24 fps  24 q -1 0 size        0kB time 1 42 bitrate    0 3kbits s     frame    41 fps  26 q -1 0 size        0kB time 2 41 bitrate    0 2kbits s      h264   0x1013000 Cannot parallelize deblocking type 1  decoding such frames in sequential order frame    49 fps  24 q 26 0 size        4kB time 0 28 bitrate  118 1kbits s     frame    56 fps  22 q 23 0 size        4kB time 0 56 bitrate   62 9kbits s      Once you have the time  it is simple math  time   duration   100     done

User · Answer

Try something like   ffmpeg -i  path to file  -f null  dev null   It writes the frame number to stderr  so you can retrieve the last frame from this

User · Answer

Since my comment got a few upvotes  I figured I d leave it as an answer   ffmpeg -i 00000 avi -map 0 v 0 -c copy -f null -y  dev null 2 gt  amp 1   grep -Eo  frame    0-9        grep -Eo   0-9      tail -1   This should be fast  since no encoding is being performed  ffmpeg will just demux the file and read  decode  the first video stream as quickly as possible  The first grep command will grab the text that shows the frame  The second grep command will grab just the number from that  The tail command will just show the final line  final frame count

User · Answer

try this   ffmpeg -i  path to file  -f null  dev null 2 gt  amp 1   grep  frame     cut -f 2 -d

User · Answer

Note  The presence of an edit list in MP4 M4V M4A MOV can affect your frame number  See Edit lists below     ffprobe  Query the container  ffprobe -v error -select streams v 0 -show entries stream nb frames -of default nokey 1 noprint wrappers 1 input mp4    This is a fast method  Not all formats  such as Matroska  will report the number of frames resulting in the output of N A  See the other methods listed below    ffprobe  Count the number of frames  ffprobe -v error -count frames -select streams v 0 -show entries stream nb read frames -of default nokey 1 noprint wrappers 1 input mkv    This is a slow method  Add the -skip frame nokey option to only count key frames    ffmpeg  Count the number of frames  If you do not have ffprobe you can use ffmpeg instead   ffmpeg -i input mkv -map 0 v 0 -c copy -f null -    This is a somewhat fast method  Refer to frame  near the end of the console output  Add the -discard nokey input option  before -i  to only count key frames    Edit lists  Ignore the MP4 M4V M4A MOV edit list with the -ignore editlist 1 input option  Default is to not ignore the edit list   What the ffprobe options mean   -v error This hides  info  output  version info  etc  which makes parsing easier  -count frames Count the number of frames per stream and report it in the corresponding stream section  -select streams v 0 Select only the video stream  -show entries stream nb frames or -show entries stream nb read frames Show only the entry for nb frames or nb read frames  -of default nokey 1 noprint wrappers 1 Set output format  aka the  writer   to default  do not print the key of each field  nokey 1   and do not print the section header and footer  noprint wrappers 1   There are shorter alternatives such as -of csv p 0    Also see   FFprobe Documentation FFmpeg Wiki  FFprobe Tips     mediainfo  The well known mediainfo tool can output the number of frames   mediainfo --Output  Video  FrameCount   input avi     MP4Box  For MP4 M4V M4A files   MP4Box from gpac can show the number of frames   MP4Box -info input mp4   Refer to the Media Info line in the output for the video stream in question   Media Info  Language  Undetermined  und   - Type  vide avc1  - 2525 samples   In this example the video stream has 2525 frames     boxdumper  For MP4 M4V M4A MOV files   boxdumper is a simple tool from l-smash  It will output a large amount of information  Under the stsz sample size box section refer to sample count for the number of frames  In this example the input has 1900 video frames   boxdumper input mp4          stsz  Sample Size Box      position   342641     size   7620     version   0     flags   0x000000     sample size   0  variable      sample count   1900    Be aware that a file may have more than one stsz atom

User · Answer

Cmd - gt   ffprobe exe -v error -select streams v 0 -show entries stream r frame rate duration -of default nw 1  d  movies The Matrix 1999 1080p BrRip x264 YIFY dut mp4   Result - gt   r frame rate 24000 1001 duration 8177 794625  Calculation - gt   Frames 24000 1001 8177 794625 196071  Proof - gt    ffmpeg -i  d  movies The Matrix 1999 1080p BrRip x264 YIFY dut mp4  -f null  dev null ffmpeg version N-92938-g0aaaca25e0-ffmpeg-windows-pacman Copyright  c  2000-2019 the FFmpeg developers   built with gcc 8 2 0  GCC    configuration  --pkg-config pkg-config --pkg-config-flags --static --extra-version ffmpeg-windows-pacman --enable-version3 --disable-debug --disable-w32threads --arch x86 64 --target-os mingw32 --cross-prefix  opt sandbox cross compilers mingw-w64-x86 64 bin x86 64-w64-mingw32- --enable-libcaca --enable-gray --enable-libtesseract --enable-fontconfig --enable-gmp --enable-gnutls --enable-libass --enable-libbluray --enable-libbs2b --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libzimg --enable-libzvbi --enable-libmysofa --enable-libaom --enable-libopenjpeg --enable-libopenh264 --enable-liblensfun --enable-nvenc --enable-nvdec --extra-libs -lm --extra-libs -lpthread --extra-cflags -DLIBTWOLAME STATIC --extra-cflags -DMODPLUG STATIC --extra-cflags -DCACA STATIC --enable-amf --enable-libmfx --enable-gpl --enable-avisynth --enable-frei0r --enable-filter frei0r --enable-librubberband --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxvid --enable-libxavs --enable-avresample --extra-cflags  -march core2  --extra-cflags -O2 --enable-static --disable-shared --prefix  opt sandbox cross compilers mingw-w64-x86 64 x86 64-w64-mingw32 --enable-nonfree --enable-decklink --enable-libfdk-aac   libavutil      56  25 100   56  25 100   libavcodec     58  43 100   58  43 100   libavformat    58  25 100   58  25 100   libavdevice    58   6 101   58   6 101   libavfilter     7  47 100    7  47 100   libavresample   4   0   0    4   0   0   libswscale      5   4 100    5   4 100   libswresample   3   4 100    3   4 100   libpostproc    55   4 100   55   4 100 Input  0  mov mp4 m4a 3gp 3g2 mj2  from  d  movies The Matrix 1999 1080p BrRip x264 YIFY dut mp4     Metadata      major brand       isom     minor version     512     compatible brands  isomiso2avc1mp41     encoder           Lavf58 25 100   Duration  02 16 17 91  start  0 000000  bitrate  2497 kb s     Stream  0 0 und   Video  h264  High   avc1   0x31637661   yuv420p  1920x800  SAR 1 1 DAR 12 5   2397 kb s  23 98 fps  23 98 tbr  24k tbn  47 95 tbc  default      Metadata        handler name      VideoHandler     Stream  0 1 und   Audio  aac  LC   mp4a   0x6134706D   44100 Hz  stereo  fltp  93 kb s  default      Metadata        handler name      GPAC ISO Audio Handler Stream mapping    Stream  0 0 - gt   0 0  h264  native  - gt  wrapped avframe  native     Stream  0 1 - gt   0 1  aac  native  - gt  pcm s16le  native   Press  q  to stop      for help Output  0  null  to   dev null     Metadata      major brand       isom     minor version     512     compatible brands  isomiso2avc1mp41     encoder           Lavf58 25 100     Stream  0 0 und   Video  wrapped avframe  yuv420p  1920x800  SAR 1 1 DAR 12 5   q 2-31  200 kb s  23 98 fps  23 98 tbn  23 98 tbc  default      Metadata        handler name      VideoHandler       encoder           Lavc58 43 100 wrapped avframe     Stream  0 1 und   Audio  pcm s16le  44100 Hz  stereo  s16  1411 kb s  default      Metadata        handler name      GPAC ISO Audio Handler       encoder           Lavc58 43 100 pcm s16le frame 196071 fps 331 q -0 0 Lsize N A time 02 16 17 90 bitrate N A speed 13 8x video 102631kB audio 1408772kB subtitle 0kB other streams 0kB global headers 0kB muxing overhead  unknown

[video] Fetch frame count with ffmpeg

Examples related to video

Examples related to ffmpeg