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ffmpeg vs avconv - Specifically use of lavfi in avconv


ffmpeg / avconv follow_mouse not working?How to replace avconv with (the real) ffmpeg and have it work right?Incorrect duration time in Audacious or any musical player when convert with ffmpeg or avconvHow to use Ffmpeg to convert wma to mp3 recursively, importing from txt file?How to specify flac compression level when converting with avconv?avconv: Saving MP4 Process HangsSoX suggestions - Binaural Beats?Symlink the ffmpeg command to avconv






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty
margin-bottom:0;









2


















I have been trying to create a sine wave with avconv. I have read online that avconv is very similar to ffmpeg and much of the syntax of one should be almost identical to be used in the other. Searching around online tells me that generating a sine wave can be done in ffmpeg like so:



ffmpeg -f lavfi -i "sine=frequency=1000:duration=5" test.wav



I have tried the same code in avconv, however it doesn't work and I get:



Unknown input format: 'lavfi'



I was wondering if there was a way to create a sine wave in avconv and if someone could clarify how lavfi commands can be used in avconv.



Thanks!










share|improve this question

























  • avconv does not have the sine filter (and a million other filters). Why not use ffmpeg?

    – llogan
    Sep 17 at 17:43











  • @llogan I suppose the reason why I'm using avconv is because avconv is in the raspbian apt repository whereas ffmpeg - I assumed that the functionality of avconv and ffmpeg are the same

    – Yharooer
    Sep 18 at 23:08

















2


















I have been trying to create a sine wave with avconv. I have read online that avconv is very similar to ffmpeg and much of the syntax of one should be almost identical to be used in the other. Searching around online tells me that generating a sine wave can be done in ffmpeg like so:



ffmpeg -f lavfi -i "sine=frequency=1000:duration=5" test.wav



I have tried the same code in avconv, however it doesn't work and I get:



Unknown input format: 'lavfi'



I was wondering if there was a way to create a sine wave in avconv and if someone could clarify how lavfi commands can be used in avconv.



Thanks!










share|improve this question

























  • avconv does not have the sine filter (and a million other filters). Why not use ffmpeg?

    – llogan
    Sep 17 at 17:43











  • @llogan I suppose the reason why I'm using avconv is because avconv is in the raspbian apt repository whereas ffmpeg - I assumed that the functionality of avconv and ffmpeg are the same

    – Yharooer
    Sep 18 at 23:08













2













2









2








I have been trying to create a sine wave with avconv. I have read online that avconv is very similar to ffmpeg and much of the syntax of one should be almost identical to be used in the other. Searching around online tells me that generating a sine wave can be done in ffmpeg like so:



ffmpeg -f lavfi -i "sine=frequency=1000:duration=5" test.wav



I have tried the same code in avconv, however it doesn't work and I get:



Unknown input format: 'lavfi'



I was wondering if there was a way to create a sine wave in avconv and if someone could clarify how lavfi commands can be used in avconv.



Thanks!










share|improve this question














I have been trying to create a sine wave with avconv. I have read online that avconv is very similar to ffmpeg and much of the syntax of one should be almost identical to be used in the other. Searching around online tells me that generating a sine wave can be done in ffmpeg like so:



ffmpeg -f lavfi -i "sine=frequency=1000:duration=5" test.wav



I have tried the same code in avconv, however it doesn't work and I get:



Unknown input format: 'lavfi'



I was wondering if there was a way to create a sine wave in avconv and if someone could clarify how lavfi commands can be used in avconv.



Thanks!







sound video ffmpeg avconv






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Sep 17 at 11:59









YharooerYharooer

1,10710 silver badges20 bronze badges




1,10710 silver badges20 bronze badges















  • avconv does not have the sine filter (and a million other filters). Why not use ffmpeg?

    – llogan
    Sep 17 at 17:43











  • @llogan I suppose the reason why I'm using avconv is because avconv is in the raspbian apt repository whereas ffmpeg - I assumed that the functionality of avconv and ffmpeg are the same

    – Yharooer
    Sep 18 at 23:08

















  • avconv does not have the sine filter (and a million other filters). Why not use ffmpeg?

    – llogan
    Sep 17 at 17:43











  • @llogan I suppose the reason why I'm using avconv is because avconv is in the raspbian apt repository whereas ffmpeg - I assumed that the functionality of avconv and ffmpeg are the same

    – Yharooer
    Sep 18 at 23:08
















avconv does not have the sine filter (and a million other filters). Why not use ffmpeg?

– llogan
Sep 17 at 17:43





avconv does not have the sine filter (and a million other filters). Why not use ffmpeg?

– llogan
Sep 17 at 17:43













@llogan I suppose the reason why I'm using avconv is because avconv is in the raspbian apt repository whereas ffmpeg - I assumed that the functionality of avconv and ffmpeg are the same

– Yharooer
Sep 18 at 23:08





@llogan I suppose the reason why I'm using avconv is because avconv is in the raspbian apt repository whereas ffmpeg - I assumed that the functionality of avconv and ffmpeg are the same

– Yharooer
Sep 18 at 23:08










1 Answer
1






active

oldest

votes


















2



















avconv and ffmpeg do not have the same functionality: avconv is missing many features (-f lavfi) and filters (sine and aevalsrc). Because avconv lacks these I don't see a way to generate a sine with it.



Your Raspbian must be old because, according to repology, both Raspbian Stable and Oldstable use FFmpeg and not Libav (avconv).



Solutions:



  • One obvious but possibly impractical solution is to upgrade your Raspbian and use ffmpeg from the repo.


  • Compile ffmpeg.


  • Find a static build. johnvansickle.com offers ffmpeg for arm64, armhf, and armel. Maybe one of those will work on whatever Raspberry device you have.


  • Use sox or some other tool.






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    avconv and ffmpeg do not have the same functionality: avconv is missing many features (-f lavfi) and filters (sine and aevalsrc). Because avconv lacks these I don't see a way to generate a sine with it.



    Your Raspbian must be old because, according to repology, both Raspbian Stable and Oldstable use FFmpeg and not Libav (avconv).



    Solutions:



    • One obvious but possibly impractical solution is to upgrade your Raspbian and use ffmpeg from the repo.


    • Compile ffmpeg.


    • Find a static build. johnvansickle.com offers ffmpeg for arm64, armhf, and armel. Maybe one of those will work on whatever Raspberry device you have.


    • Use sox or some other tool.






    share|improve this answer






























      2



















      avconv and ffmpeg do not have the same functionality: avconv is missing many features (-f lavfi) and filters (sine and aevalsrc). Because avconv lacks these I don't see a way to generate a sine with it.



      Your Raspbian must be old because, according to repology, both Raspbian Stable and Oldstable use FFmpeg and not Libav (avconv).



      Solutions:



      • One obvious but possibly impractical solution is to upgrade your Raspbian and use ffmpeg from the repo.


      • Compile ffmpeg.


      • Find a static build. johnvansickle.com offers ffmpeg for arm64, armhf, and armel. Maybe one of those will work on whatever Raspberry device you have.


      • Use sox or some other tool.






      share|improve this answer




























        2















        2











        2









        avconv and ffmpeg do not have the same functionality: avconv is missing many features (-f lavfi) and filters (sine and aevalsrc). Because avconv lacks these I don't see a way to generate a sine with it.



        Your Raspbian must be old because, according to repology, both Raspbian Stable and Oldstable use FFmpeg and not Libav (avconv).



        Solutions:



        • One obvious but possibly impractical solution is to upgrade your Raspbian and use ffmpeg from the repo.


        • Compile ffmpeg.


        • Find a static build. johnvansickle.com offers ffmpeg for arm64, armhf, and armel. Maybe one of those will work on whatever Raspberry device you have.


        • Use sox or some other tool.






        share|improve this answer














        avconv and ffmpeg do not have the same functionality: avconv is missing many features (-f lavfi) and filters (sine and aevalsrc). Because avconv lacks these I don't see a way to generate a sine with it.



        Your Raspbian must be old because, according to repology, both Raspbian Stable and Oldstable use FFmpeg and not Libav (avconv).



        Solutions:



        • One obvious but possibly impractical solution is to upgrade your Raspbian and use ffmpeg from the repo.


        • Compile ffmpeg.


        • Find a static build. johnvansickle.com offers ffmpeg for arm64, armhf, and armel. Maybe one of those will work on whatever Raspberry device you have.


        • Use sox or some other tool.







        share|improve this answer













        share|improve this answer




        share|improve this answer










        answered Sep 18 at 23:39









        lloganllogan

        6,45820 silver badges40 bronze badges




        6,45820 silver badges40 bronze badges































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