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• FFMPEG Conversion from GIF to video with audio, take too long

  5 novembre 2020, par Mouaad Abdelghafour AITALI

  I'm trying to convert a GIF file into 720p video and merge it with audio, the code below works fine, but it takes a long time to finish the process (depends on the audio length) :

  


  //Converting from GIF to video is fast!

public static String makeVideo(String inputGifPath, String outputPath, int width, int height) {
        return "-y -i " + inputGifPath + " -movflags faststart -pix_fmt yuv420p -vf crop=" + width + ":" + height + ":0:40,scale=1280:720,setsar=1 " + outputPath;
    }



//Merging video with audio takes a lot of time!

public static String addAudio(String audioNoSpace, String inputVideoPath, String outputVideoPath) {
    return "-stream_loop -1 -i " + inputVideoPath + " -i " + audioNoSpace + " -shortest -map 0:v:0 -map 1:a:0 -y " + outputVideoPath;
}


  


  FFMPEG commands :

  


  -y -i file.gif  -movflags faststart -pix_fmt yuv420p -vf crop=540:250:0:40,scale=1280:720,setsar=1 video.mp4

-stream_loop -1 -i video.mp4 -i  audio.wav -shortest -map 0:v:0 -map 1:a:0 -y final_video.mp4


  


  Part of log :

  


  2020-11-05 19:50:33.092 5721-6212/maa.slowed_reverb W/mobile-ffmpeg: [graph 0 input from stream 0:0 @ 0x70b2dedb00] sws_param option is deprecated and ignored
2020-11-05 19:50:33.112 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: Output #0, mp4, to '/storage/emulated/0/Movies/folder/folder_1604602231893.mp4':
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:   Metadata:
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:     major_brand     : 
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: isom
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:     minor_version   : 
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: 512
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:     compatible_brands: 
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: isomiso2mp41
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:     comment         : 
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: Optimized with ezgif.com
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:     encoder         : 
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: Lavf58.48.100
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:     Stream #0:0
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: (und)
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: : Video: mpeg4 (mp4v / 0x7634706D), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: , 
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: 12.50 fps, 
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: 12800 tbn, 
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: 12.50 tbc
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:  (default)
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:     Metadata:
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:       handler_name    : 
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: VideoHandler
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:       encoder         : 
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: Lavc58.96.100 mpeg4
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:     Side data:
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:       
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: cpb: 
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: bitrate max/min/avg: 0/0/200000 buffer size: 0 
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: vbv_delay: N/A
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:     Stream #0:1
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: : Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:     Metadata:
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg:       encoder         : 
2020-11-05 19:50:33.113 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: Lavc58.96.100 aac
2020-11-05 19:50:33.462 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=   17 fps=0.0 q=4.8 size=       0kB time=00:00:01.28 bitrate=   0.3kbits/s speed=3.27x    
2020-11-05 19:50:33.965 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=   54 fps=0.0 q=28.4 size=     256kB time=00:00:04.24 bitrate= 494.7kbits/s speed=4.74x    
2020-11-05 19:50:34.468 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=   85 fps= 61 q=24.8 size=     512kB time=00:00:06.72 bitrate= 624.2kbits/s speed=4.81x    
2020-11-05 19:50:34.973 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  117 fps= 61 q=31.0 size=     512kB time=00:00:09.28 bitrate= 452.0kbits/s speed=4.88x    
2020-11-05 19:50:35.478 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  150 fps= 62 q=31.0 size=     768kB time=00:00:11.92 bitrate= 527.8kbits/s speed=4.96x    
2020-11-05 19:50:35.976 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  184 fps= 63 q=31.0 size=    1024kB time=00:00:14.64 bitrate= 573.0kbits/s speed=5.04x    
2020-11-05 19:50:36.478 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  217 fps= 64 q=24.8 size=    1024kB time=00:00:17.28 bitrate= 485.5kbits/s speed=5.07x    
2020-11-05 19:50:36.994 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  249 fps= 63 q=31.0 size=    1280kB time=00:00:19.84 bitrate= 528.5kbits/s speed=5.06x    
2020-11-05 19:50:37.511 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  283 fps= 64 q=31.0 size=    1536kB time=00:00:22.56 bitrate= 557.8kbits/s speed=5.08x    
2020-11-05 19:50:38.012 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  313 fps= 63 q=24.8 size=    1536kB time=00:00:24.96 bitrate= 504.1kbits/s speed=5.05x    
2020-11-05 19:50:38.521 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  345 fps= 63 q=31.0 size=    1792kB time=00:00:27.52 bitrate= 533.4kbits/s speed=5.05x    
2020-11-05 19:50:39.026 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  377 fps= 63 q=31.0 size=    1792kB time=00:00:30.08 bitrate= 488.0kbits/s speed=5.05x    
2020-11-05 19:50:39.534 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  411 fps= 64 q=31.0 size=    2048kB time=00:00:32.80 bitrate= 511.5kbits/s speed=5.07x    
2020-11-05 19:50:40.055 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  443 fps= 63 q=31.0 size=    2304kB time=00:00:35.36 bitrate= 533.8kbits/s speed=5.06x    
2020-11-05 19:50:40.565 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  476 fps= 64 q=31.0 size=    2304kB time=00:00:38.00 bitrate= 496.7kbits/s speed=5.08x    
2020-11-05 19:50:41.056 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  506 fps= 63 q=31.0 size=    2560kB time=00:00:40.40 bitrate= 519.1kbits/s speed=5.06x    
2020-11-05 19:50:41.560 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  538 fps= 63 q=31.0 size=    2560kB time=00:00:42.96 bitrate= 488.2kbits/s speed=5.06x    
2020-11-05 19:50:42.068 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  571 fps= 63 q=31.0 size=    2816kB time=00:00:45.60 bitrate= 505.9kbits/s speed=5.07x    
2020-11-05 19:50:42.574 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  602 fps= 63 q=31.0 size=    3072kB time=00:00:48.08 bitrate= 523.4kbits/s speed=5.06x    
2020-11-05 19:50:43.087 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  636 fps= 64 q=31.0 size=    3072kB time=00:00:50.80 bitrate= 495.4kbits/s speed=5.08x    
2020-11-05 19:50:43.586 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  663 fps= 63 q=31.0 size=    3328kB time=00:00:52.96 bitrate= 514.8kbits/s speed=5.04x    
2020-11-05 19:50:44.086 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  696 fps= 63 q=31.0 size=    3328kB time=00:00:55.63 bitrate= 490.0kbits/s speed=5.05x    
2020-11-05 19:50:44.595 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  728 fps= 63 q=31.0 size=    3584kB time=00:00:58.16 bitrate= 504.8kbits/s speed=5.05x    
2020-11-05 19:50:45.101 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  761 fps= 63 q=31.0 size=    3840kB time=00:01:00.80 bitrate= 517.4kbits/s speed=5.05x    
2020-11-05 19:50:45.602 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  794 fps= 63 q=31.0 size=    3840kB time=00:01:03.44 bitrate= 495.9kbits/s speed=5.06x    
2020-11-05 19:50:46.103 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  827 fps= 63 q=31.0 size=    4096kB time=00:01:06.08 bitrate= 507.8kbits/s speed=5.07x    
2020-11-05 19:50:46.604 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  859 fps= 63 q=31.0 size=    4096kB time=00:01:08.64 bitrate= 488.9kbits/s speed=5.07x    
2020-11-05 19:50:47.116 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  890 fps= 63 q=31.0 size=    4352kB time=00:01:11.12 bitrate= 501.3kbits/s speed=5.06x    
2020-11-05 19:50:47.619 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  924 fps= 64 q=31.0 size=    4608kB time=00:01:13.84 bitrate= 511.2kbits/s speed=5.08x    
2020-11-05 19:50:48.120 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  954 fps= 63 q=31.0 size=    4608kB time=00:01:16.24 bitrate= 495.1kbits/s speed=5.07x    
2020-11-05 19:50:48.631 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame=  986 fps= 63 q=31.0 size=    4864kB time=00:01:18.80 bitrate= 505.7kbits/s speed=5.06x    
2020-11-05 19:50:49.143 5721-6212/maa.slowed_reverb I/mobile-ffmpeg: frame= 1017 fps= 63 q=31.0 size=    4864kB time=00:01:21.28 bitrate= 490.2kbits/s speed=5.06x


  


• How to merge multiple videos and audios in python ffpmeg [closed]

  18 décembre 2020, par Alireza Farzaneh

  I'm making a program for downloading Adobe connect based meetings' recordings using python.
I have managed to download Adobe connect sessions' recording.
  
Now I have multiple separate audios and videos.
  
I'm trying to merge them into one video using python and ffmpeg library.
  
The problem is that I want them to be in sync.
  

  
Here is an example :
  
I have four files :

  "cameraVoip_0_4.flv" : audio, started at "Sat Nov 07 13:36:11 2020" and lasted for 2888.128000 seconds.

  "cameraVoip_0_6.flv" : audio, started at "Sat Nov 07 14:26:42 2020" and lasted for 366.455 seconds.

  "screenshare_1_2.flv" : video, started at "Sat Nov 07 13:36:01 2020" and lasted for 2844.602000 seconds.

  "screenshare_3_7.flv" : video, started at "Sat Nov 07 14:26:51 2020" and lasted for 352.635000 seconds.


  
I want to merge them somehow that their timing would be correct.

  


• Realtime removal of carriage return in shell

  1er mai 2013, par Seth

  For context, I'm attempting to create a shell script that simplifies the realtime console output of ffmpeg, only displaying the current frame being encoded. My end goal is to use this information in some sort of progress indicator for batch processing.

  For those unfamiliar with ffmpeg's output, it outputs encoded video information to stdout and console information to stderr. Also, when it actually gets to displaying encode information, it uses carriage returns to keep the console screen from filling up. This makes it impossible to simply use grep and awk to capture the appropriate line and frame information.

  The first thing I've tried is replacing the carriage returns using tr :

  $ ffmpeg -i "ScreeningSchedule-1.mov" -y "test.mp4" 2>&1 | tr '\r' '\n'

  This works in that it displays realtime output to the console. However, if I then pipe that information to grep or awk or anything else, tr's output is buffered and is no longer realtime. For example : $ ffmpeg -i "ScreeningSchedule-1.mov" -y "test.mp4" 2>&1 | tr '\r' '\n'>log.txt results in a file that is immediately filled with some information, then 5-10 secs later, more lines get dropped into the log file.

  At first I thought sed would be great for this : $ # ffmpeg -i "ScreeningSchedule-1.mov" -y "test.mp4" 2>&1 | sed 's/\\r/\\n/', but it gets to the line with all the carriage returns and waits until the processing has finished before it attempts to do anything. I assume this is because sed works on a line-by-line basis and needs the whole line to have completed before it does anything else, and then it doesn't replace the carriage returns anyway. I've tried various different regex's for the carriage return and new line, and have yet to find a solution that replaces the carriage return. I'm running OSX 10.6.8, so I am using BSD sed, which might account for that.

  I have also attempted to write the information to a log file and use tail -f to read it back, but I still run into the issue of replacing carriage returns in realtime.

  I have seen that there are solutions for this in python and perl, however, I'm reluctant to go that route immediately. First, I don't know python or perl. Second, I have a completely functional batch processing shell application that I would need to either port or figure out how to integrate with python/perl. Probably not hard, but not what I want to get into unless I absolutely have to. So I'm looking for a shell solution, preferably bash, but any of the OSX shells would be fine.

  And if what I want is simply not doable, well I guess I'll cross that bridge when I get there.