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• Converting .3gp file into mp4 file in android using ffmpeg

  8 août 2013, par user2171513

  I want to convert .3gp file into .mp4 file with resolution modified in Android using ffmpeg.
  I want to increase the resolution of the video from its standard resolution to 1920x1080.

  So far I have been successful in
  1) extracting .h264 video file from .3gp file and increase its resolution
  2) extracting .aac audio file from .3gp file.

  Now I want to combine them back into .mp4 file. The commands that I have used to extract this .h264 and .aac files are :

  ./ffmpeg -i 1.3gp -vbsf h264_mp4toannexb -s 1920x1080 1.h264
  
  ./ffmpeg -i 1.3gp -ab 160k -ac 2 -ar 48000 -vn -strict -2  1.aac

  The command that I have tried to merge them back is

  ./ffmpeg -i 1.h264 -i 1.aac -map 0:0 -map 1:0 -strict -2 1.mp4

  The 1.mp4 that gets generated at the end basically has audio only at few sync frames of video. (Thats what I feel , because the audio is present at specific intervals within the video)

  Can anyone please help in figuring out what am I missing here.

  EDIT :
  So basically I want to concat 4 different videos of 4 different resolution and type.

  1)

  ./ffmpeg -i 1.mp4 
  
  Video: h264 (High), yuv420p, 1920x1080, 16959 kb/s, 29.85 fps, 90k tbr, 90k tbn, 180k tbc
  
  Audio: aac, 48000 Hz, stereo, s16, 106 kb/s

  2)

  ffmpeg -i 2.mp4
  
  Video: h264 (Constrained Baseline), yuv420p, 640x480, 3102 kb/s, 29.99 fps, 90k tbr, 90k tbn, 180k tbc
  
  Audio: aac, 48000 Hz, stereo, s16, 93 kb/s

  3)

  ffmpeg -i 3.3gp
  
  Video: h263, yuv420p, 1408x1152 [PAR 12:11 DAR 4:3], 2920 kb/s, 15 fps, 15 tbr, 15360 tbn, 29.97 tbc
  
  Audio: amrnb, 8000 Hz, 1 channels, flt, 12 kb/s

  4)

  ffmpeg -i 4.3gp
  
  Video: h264 (High), yuv420p, 352x288 [PAR 12:11 DAR 4:3], 216 kb/s, 24 fps, 24 tbr, 24 tbn, 48 tbc
  
  Audio: aac, 44100 Hz, stereo, s16, 92 kb/s

  So I am converting them to mpegts using following commands

  ./ffmpeg -i 1.mp4 -c:v libx264 -vf scale=1920:1080 -r 60 -c:a aac -ar 48000 -b:a 160k -strict experimental -f mpegts 1.ts
  
  ./ffmpeg -i 2.mp4 -c:v libx264 -vf scale=1920:1080 -r 60 -c:a aac -ar 48000 -b:a 160k -strict experimental -f mpegts 2.ts
  
  ./ffmpeg -i 3.3gp -c:v libx264 -vf scale=1920:1080 -r 60 -c:a aac -ar 48000 -b:a 160k -strict experimental -f mpegts 3.ts
  
  ./ffmpeg -i 4.3gp -c:v libx264 -vf scale=1920:1080 -r 60 -c:a aac -ar 48000 -b:a 160k -strict experimental -f mpegts 4.ts

  then concatenating the .ts files into f.ts and then creating a final .mp4 file from it using

   cat 1.ts 2.ts 3.ts 4.ts > f.ts
  
  ./ffmpeg -i f.ts -c copy -bsf:a aac_adtstoasc output.mp4

  But my f.ts also doesnt seem to play correctly in VLC on linux, it plays first 2 mp4's video + audio and it plays last .3gp's audio only.(Same for output.mp4 too) Could you please help me in figuring out what am I missing ?

  Thanks

• ffmpeg command to get master manifest file in hls where all renditions are pointed to a single m3u8 file [closed]

  28 décembre 2023, par user2975644

  ffmpeg command to get master manifest file in hls where all renditions are pointed to a single m3u8 file.The video reolutions are 360p,540p,720p and 1080p.

  


  I have tried with the below command but unable to get the desired output :

  


  ffmpeg -i Test_video.mp4

  


  -c:v libx264 -g 48 -keyint_min 48 -sc_threshold 0 -c:a aac -b:a 64k

  


  -vf "scale=640:360" -b:v 500k -maxrate 100k -bufsize 1000k -profile:v main -level 3.1 -f hls -hls_time 10 -hls_list_size 0 -hls_segment_filename 360p%03d.ts 360p.m3u8

  


  -vf "scale=960:540" -b:v 800k -maxrate 1600k -bufsize 1000k -profile:v main -level 3.1 -f hls -hls_time 10 -hls_list_size 0 -hls_segment_filename 540p%03d.ts 540p.m3u8

  


  -vf "scale=1280:720" -b:v 1500k -maxrate 3000k -bufsize 3000k -profile:v main -level 3.1 -f hls -hls_time 10 -hls_list_size 0 -hls_segment_filename 720p%03d.ts 720p.m3u8

  


  -vf "scale=1920:1080" -b:v 3000k -maxrate 6000k -bufsize 6000k -profile:v main -level 3.1 -f hls -hls_time 10 -hls_list_size 0 -hls_segment_filename 1080p%03d.ts 1080p.m3u8

  


  hls_playlist_type vod -master_pl_name master.m3u8

  


• Cannot convert .ogg file to .mp3 or other file formats

  15 août 2020, par mancgain

  I am trying to convert ogg audio file to mp3 or other audio file formats that can be played in ios devices But ogg files are not being converted into other formats like mp3 and caf. I am testing the conversion in android device.

  


  This is my ffmpeg command arguments :

  


  Command: "ffmpeg -y -i $inputFilePath -c:a copy $outputFilePath"
Both input and output filenames were surrounded with quotations

 [-y, -i, /data/user/0/com.musicapp/files/composer_audios/testtt ogg file.ogg, -c:a, copy, /storage/emulated/0/Android/data/com.musicapp/files/ball.mp3]


  


  When I try to convert into mp3 . this error is thrown :

  


   FFmpeg exited with rc: 1
 [mp3 @ 0x73f7b36a00] Invalid audio stream. Exactly one MP3 audio stream is required.
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument


  


  When I try to convert into .caf file this error is thrown :

  


  
FFmpeg exited with rc: 1
 [caf @ 0x73f7b36a00] unsupported codec
 Could not write header for output file #0 (incorrect codec parameters ?): Invalid data found when processing input



  


  But if I try to convert mp3 file to formats like caf, mkv, mp4, no error is thrown.