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• ffmpeg - I want to concat multiple videos (front / rear) with overlay and one second delay

  12 mai 2024, par Andrej Florjančič

  I try to write bash script to concat front and rear video files with delay 1 second at start and overlay rear over front.

  


  I wrote the following bash script :

  


  # Define the output file
output_file="${VIDEO}/final_output_${choice}.mp4"

# Collect and sort the video files
front_files=( $(ls *_F.MP4 | sort) )
rear_files=( $(ls *_R.MP4 | sort) )

# Create a file to hold ffmpeg input commands and filter scripts
input_list="input_files.txt"
filter_script="filter_complex.txt"
inputs=""

# Clear the input list and filter script files
echo "" > "$input_list"
echo "" > "$filter_script"

# Number of files
num_files=${#front_files[@]}

# Iterate through the sorted files to build the filter script
for i in "${!front_files[@]}"; do
    echo "file '${front_files[$i]}'" >> "$input_list"
    echo "file '${rear_files[$i]}'" >> "$input_list"
    
    echo "[$((2*i)):v]trim=start=1,scale=1920:1080,setpts=PTS-STARTPTS[f_$i]; [$((2*i)):a]atrim=start=1,asetpts=PTS-STARTPTS[a_$i];" >> "$filter_script"
    echo "[$((2*i+1)):v]trim=start=1,scale=640:360,setpts=PTS-STARTPTS[r_$i];" >> "$filter_script"  # Rear video only
    echo "[f_$i][r_$i]overlay=x=(main_w-overlay_w-10):y=(main_h-overlay_h-10)[mix_$i];" >> "$filter_script"

    input+="[mix_$i][a_$i]"
done

# Concatenate all combined labels
echo "${input}concat=n=${#front_files[@]}:v=1:a=1[v][a]" >> "$filter_script"

# Run FFmpeg with filter script
ffmpeg -f concat -safe 0 -i "$input_list" \
    -filter_complex_script "$filter_script" \
    -map "[v]" -map "[a]" \
    -y "$output_file"


  


  This script generates two files input_list.txt :

  


  file '20200826_084407_F.MP4'
file '20200826_084407_R.MP4'
file '20200826_084708_F.MP4'
file '20200826_084708_R.MP4'
file '20200826_084910_F.MP4'
file '20200826_084910_R.MP4'


  


  filter_script.txt :

  


  [0:v]trim=start=1,scale=1920:1080,setpts=PTS-STARTPTS[f_0]; [0:a]atrim=start=1,asetpts=PTS-STARTPTS[a_0];
[1:v]trim=start=1,scale=640:360,setpts=PTS-STARTPTS[r_0];
[f_0][r_0]overlay=x=(main_w-overlay_w-10):y=(main_h-overlay_h-10)[mix_0];
[2:v]trim=start=1,scale=1920:1080,setpts=PTS-STARTPTS[f_1]; [2:a]atrim=start=1,asetpts=PTS-STARTPTS[a_1];
[3:v]trim=start=1,scale=640:360,setpts=PTS-STARTPTS[r_1];
[f_1][r_1]overlay=x=(main_w-overlay_w-10):y=(main_h-overlay_h-10)[mix_1];
[4:v]trim=start=1,scale=1920:1080,setpts=PTS-STARTPTS[f_2]; [4:a]atrim=start=1,asetpts=PTS-STARTPTS[a_2];
[5:v]trim=start=1,scale=640:360,setpts=PTS-STARTPTS[r_2];
[f_2][r_2]overlay=x=(main_w-overlay_w-10):y=(main_h-overlay_h-10)[mix_2];
[mix_0][a_0][mix_1][a_1][mix_2][a_2]concat=n=3:v=1:a=1[v][a]


  


  I'w got error :

  


  Input #0, concat, from 'input_files.txt':
  Duration: N/A, start: 0.000000, bitrate: 11973 kb/s
  Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 11877 kb/s, 30 fps, 30 tbr, 60k tbn, 60 tbc
    Metadata:
      creation_time   : 2020-08-26T08:47:07.000000Z
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
      encoder         : h264
  Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 32000 Hz, mono, fltp, 96 kb/s
    Metadata:
      creation_time   : 2020-08-26T08:47:07.000000Z
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
Invalid file index 1 in filtergraph description
[0:v]trim=start=1,scale=1920:1080,setpts=PTS-STARTPTS[f_0]; [0:a]atrim=start=1,asetpts=PTS-STARTPTS[a_0];
[1:v]trim=start=1,scale=640:360,setpts=PTS-STARTPTS[r_0];
[f_0][r_0]overlay=x=(main_w-overlay_w-10):y=(main_h-overlay_h-10)[mix_0];
[2:v]trim=start=1,scale=1920:1080,setpts=PTS-STARTPTS[f_1]; [2:a]atrim=start=1,asetpts=PTS-STARTPTS[a_1];
[3:v]trim=start=1,scale=640:360,setpts=PTS-STARTPTS[r_1];
[f_1][r_1]overlay=x=(main_w-overlay_w-10):y=(main_h-overlay_h-10)[mix_1];
[4:v]trim=start=1,scale=1920:1080,setpts=PTS-STARTPTS[f_2]; [4:a]atrim=start=1,asetpts=PTS-STARTPTS[a_2];
[5:v]trim=start=1,scale=640:360,setpts=PTS-STARTPTS[r_2];
[f_2][r_2]overlay=x=(main_w-overlay_w-10):y=(main_h-overlay_h-10)[mix_2];
[mix_0][a_0][mix_1][a_1][mix_2][a_2]concat=n=3:v=1:a=1[v][a]


  


  What am I doing wrong ?

  


• setPTS outputting wrong duration (Ffmpeg)

  16 septembre 2020, par WebDiva

  I have a video of duration 14 seconds. I applied the setPTS filter to make it 3 times slow. So the total duration should be 42s (14*3). But the output gives a 49s long video. Here is the command :

  


  ffmpeg -i video.mp4 -filter_complex "[0:v]setpts=3*PTS[v];[0:a]atempo=0.6,atempo=0.5[a]" -map "[v]" -map "[a]" output.mp4


  


  What is wrong with this command ? I tried it for different videos but all has the same weird issue. Any help will be appreciated. Regards.

  


  Log :

  


  ffmpeg version git-2020-08-31-4a11a6f Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 10.2.1 (GCC) 20200805
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --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-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --enable-librav1e --enable-libsvtav1 --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 58.100 / 56. 58.100
  libavcodec     58.101.101 / 58.101.101
  libavformat    58. 51.101 / 58. 51.101
  libavdevice    58. 11.101 / 58. 11.101
  libavfilter     7. 87.100 /  7. 87.100
  libswscale      5.  8.100 /  5.  8.100
  libswresample   3.  8.100 /  3.  8.100
  libpostproc    55.  8.100 / 55.  8.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2018-11-20T06:28:07.000000Z
  Duration: 00:00:14.72, start: 0.000000, bitrate: 688 kb/s
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, unknown/bt470bg/unknown), 198x360 [SAR 1:1 DAR 11:20], 592 kb/s, 29.93 fps, 29.93 tbr, 29931 tbn, 59.86 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 96 kb/s (default)
    Metadata:
      creation_time   : 2018-11-20T06:28:07.000000Z
      handler_name    : IsoMedia File Produced by Google, 5-11-2011
File 'output.mp4' already exists. Overwrite? [y/N] y
Stream mapping:
  Stream #0:0 (h264) -> setpts
  Stream #0:1 (aac) -> atempo
  setpts -> Stream #0:0 (libx264)
  atempo -> Stream #0:1 (aac)
Press [q] to stop, [?] for help
[libx264 @ 0000021e37f15340] using SAR=1/1
[libx264 @ 0000021e37f15340] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0000021e37f15340] profile High, level 1.3, 4:2:0, 8-bit
[libx264 @ 0000021e37f15340] 264 - core 161 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'output.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    encoder         : Lavf58.51.101
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 198x360 [SAR 1:1 DAR 11:20], q=-1--1, 29.93 fps, 29931 tbn, 29.93 tbc (default)
    Metadata:
      encoder         : Lavc58.101.101 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      encoder         : Lavc58.101.101 aac
frame= 1313 fps=256 q=-1.0 Lsize=    2241kB time=00:00:44.11 bitrate= 416.2kbits/s dup=875 drop=0 speed=8.61x
video:1500kB audio:693kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.182632%
[libx264 @ 0000021e37f15340] frame I:7     Avg QP:21.61  size: 18425
[libx264 @ 0000021e37f15340] frame P:331   Avg QP:24.78  size:  3593
[libx264 @ 0000021e37f15340] frame B:975   Avg QP:31.57  size:   223
[libx264 @ 0000021e37f15340] consecutive B-frames:  0.8%  0.2%  1.6% 97.5%
[libx264 @ 0000021e37f15340] mb I  I16..4:  3.6% 31.1% 65.3%
[libx264 @ 0000021e37f15340] mb P  I16..4:  0.8%  1.3%  4.2%  P16..4: 37.0% 29.0% 15.9%  0.0%  0.0%    skip:11.7%
[libx264 @ 0000021e37f15340] mb B  I16..4:  0.0%  0.0%  0.2%  B16..8:  8.4%  2.8%  1.2%  direct: 0.4%  skip:87.0%  L0:61.8% L1:31.0% BI: 7.3%
[libx264 @ 0000021e37f15340] 8x8 transform intra:22.3% inter:18.7%
[libx264 @ 0000021e37f15340] coded y,uvDC,uvAC intra: 73.2% 85.7% 52.9% inter: 11.6% 7.4% 0.7%
[libx264 @ 0000021e37f15340] i16 v,h,dc,p: 25% 33% 22% 19%
[libx264 @ 0000021e37f15340] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 28% 19%  4%  5%  4%  7%  5%  7%
[libx264 @ 0000021e37f15340] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 26% 13%  5%  7%  6%  7%  6%  7%
[libx264 @ 0000021e37f15340] i8c dc,h,v,p: 38% 29% 22% 11%
[libx264 @ 0000021e37f15340] Weighted P-Frames: Y:2.7% UV:0.3%
[libx264 @ 0000021e37f15340] ref P L0: 86.1%  8.9%  3.6%  1.4%  0.1%
[libx264 @ 0000021e37f15340] ref B L0: 94.7%  4.6%  0.8%
[libx264 @ 0000021e37f15340] ref B L1: 99.3%  0.7%
[libx264 @ 0000021e37f15340] kb/s:280.02
[aac @ 0000021e3847c900] Qavg: 729.586


  


• Evolution #4350 (En cours) : Faire l’ajout de la config mini dans le paquet.xml d’ecrire

  24 septembre 2019, par b b

  Pour revenir sur la proposition d’augmenter à PHP 5.6 mini je pense qu’on peut le faire sans problème. Pour info, on nécessitait PHP 5.4 mini pour raison de compat avec debian 7, cf r23619 => "On nécessite PHP 5.4 minimum. Note : Debian 7 Wheezy est supportée avec PHP 5.4 jusque fin mai 2018…"

  À ce jour, la version mini de PHP sous debian est la 5.6 proposée par debian 8 qui est supportée jusqu’au 30 juin 2020, ref https://wiki.debian.org/fr/LTS & https://packages.debian.org/fr/jessie/php5