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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 ?

  


• FFMPEG and MSA1 Codec Issues when Converting WMV to MP4 Video

  30 décembre 2023, par user136819

  I have a WMV video file (around 60 MB size, 01:23:00 length) and I'm running a Windows Server 2016 64-bit machine for testing.
  
As far as I know, this video file was recorded using Microsoft Live Meeting 2007 back in April 2010 and there is also an associated audio file (which I'm able to play).

  


  I tried to play the video file on my machine using VLC player (latest update), however, I always see this weird MSA1 codec error :

  


  

  


  So I tried to resolve this problem by downloading and installing the Combined-Community-Codec-Pack-64bit-2015-10-18, and using its MPC-HC 64-bit player to play the video...
I still couldn't get it to play ! Here are the logs shown by the MPC player :

  


  

  


  WM ASF Reader::Raw Video 0

Media Type 0:
--------------------------
Video: MSA1 1440x900 5fps 164kbps

AM_MEDIA_TYPE: 
majortype: MEDIATYPE_Video {73646976-0000-0010-8000-00AA00389B71}
subtype: Unknown GUID Name {3141534D-0000-0010-8000-00AA00389B71}
formattype: FORMAT_VideoInfo {05589F80-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 0
bTemporalCompression: 1
lSampleSize: 0
cbFormat: 88

VIDEOINFOHEADER:
rcSource: (0,0)-(1440,900)
rcTarget: (0,0)-(1440,900)
dwBitRate: 164794
dwBitErrorRate: 0
AvgTimePerFrame: 2000000

BITMAPINFOHEADER:
biSize: 40
biWidth: 1440
biHeight: 900
biPlanes: 1
biBitCount: 16
biCompression: MSA1
biSizeImage: 66101
biXPelsPerMeter: 0
biYPelsPerMeter: 0
biClrUsed: 0
biClrImportant: 0

pbFormat:
0000: 00 00 00 00 00 00 00 00 a0 05 00 00 84 03 00 00 ........ ...„...
0010: 00 00 00 00 00 00 00 00 a0 05 00 00 84 03 00 00 ........ ...„...
0020: ba 83 02 00 00 00 00 00 80 84 1e 00 00 00 00 00 ºƒ......€„......
0030: 28 00 00 00 a0 05 00 00 84 03 00 00 01 00 10 00 (... ...„.......
0040: 4d 53 41 31 35 02 01 00 00 00 00 00 00 00 00 00 MSA15...........
0050: 00 00 00 00 00 00 00 00                         ........


  


  Since that didn't work, I tried installing the Microsoft MPEG-4 V1/2/3 VKI Codec for ASF files and still couldn't get the players to play the video and saw the same errors as above !

  


  As a final attempt, I tried to convert this video to MP4 format using FFMPEG (version from 2020). Even this failed. Here are the logs :

  


  D:\ffmpeg-20200403-52523b6-win64-static\bin>ffmpeg.exe -i input-video.wmv -c:v copy -c:a aac -q:a 100 output.mp4
ffmpeg version git-2020-04-03-52523b6 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9.3.1 (GCC) 20200328
  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-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 42.102 / 56. 42.102
  libavcodec     58. 77.101 / 58. 77.101
  libavformat    58. 42.100 / 58. 42.100
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 77.101 /  7. 77.101
  libswscale      5.  6.101 /  5.  6.101
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100
[msa1 @ 000002505bb847c0] Image dimensions should be a multiple of 16.
[asf @ 000002505bb4b600] Failed to open codec in avformat_find_stream_info
[msa1 @ 000002505bb847c0] Image dimensions should be a multiple of 16.
Input #0, asf, from 'input-video.wmv':
  Metadata:
    WMFSDKNeeded    : 0.0.0.0000
    WMFSDKVersion   : 10.00.00.4072
    IsVBR           : 0
  Duration: 01:22:49.28, start: 0.000000, bitrate: 96 kb/s
    Stream #0:0(ger): Video: msa1 (MSA1 / 0x3141534D), none, 1440x900, 164 kb/s, 5 tbr, 1k tbn, 1k tbc
[mp4 @ 000002505bb4ce40] Could not find tag for codec msa1 in stream #0, codec not currently supported in container
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
    Last message repeated 1 times

D:\ffmpeg-20200403-52523b6-win64-static\bin>


  


  I wish to know, is there any other way I can convert this video to a more modern format so that I can play it on a modern machine and modern video player ?
  
What other codecs am I missing here ? (if so, where can I get them ?)
  
FYI, as mentioned earlier at the top, I'm only able to play the associated audio file...

  


  I'm fairly new to all this stuff, so any help is appreciated.

  


  Thanks in advance ! :)

  


• FFmpeg UHD encoding (piping to x265)

  15 décembre 2016, par TEB

  Update based on the good answers :

  Source :
  Prores HQ 4:2:2 10bit
  4kp25
  REC:2020

  Heres my syntax now :

  ffmpeg -pix_fmt yuv422p10 -i JUNGLES_PLUTO_UHD_HDR_HLG.mov -pix_fmt yuv420p10 -f yuv4mpegpipe - | x265 --y4m - --input-res 3840x2160 --fps 25 --preset veryslow --b-adapt 2 --ref 4 --no-open-gop --keyint 50 --min-keyint 50 --no-scenecut --profile main --level-idc 5 --no-high-tier --sar 1:1 --colorprim bt709 --transfer bt709 --colormatrix bt709 --bframes 3 --hrd --vbv-bufsize 25000 --bitrate 25000 --vbv-maxrate 25000 --aud --no-info --b-pyramid -o test.h265
  
  
  
  output: Option pixel_format not found. 

  Target : (non-hdr UHD STB)

  hevc.file 
  
  rec:709

  • Question 1 : How does one pipe correctly from ffmpeg to x265 ?
  • Question 2 : How can one make sure the cpus are all taxed ? I have
    16vcores, but im getting like 2-3% usage on all
  • Question 3 : Any suggestions on the parameters to increase the
    quality ?

  • Question 4 : Since the content is BT2020, but my target device is not currently able to display/render BT2020, but BT709.. how would i change the syntax to enable this in the best way..(downscale it)
    Would :

    —colorprim bt2020 —transfer bt2020 —colormatrix bt709

  be correct ?