Hello What are ffmbeg commands to remove noise from the sound thanks في الأحد، 30 أغسطس 2020 في 9:18 ص تمت كتابة ما يلي بواسطة Paul B Mahol <[email protected]>:
> On 8/29/20, [email protected] <[email protected]> wrote: > > For dev I'm using v. 4.3.1. and also the latest Git version of ffmpeg > > (Zeranoe's Windows 64 builds). > > > > I get "strange" problems when running the official example code for > decoding > > audio > > > > https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/decode_audio.c > > > > MP3DirectCut(Lib-bass).mp3 > > > > > http://www.mediafire.com/file/ozmjjcpwyhhdnr7/MP3DirectCut(Lib-bass).mp3/file > > > > Generates pcm, but outputs: > > > > "Warning: the sample format the decoder produced is planar (s16p). > > This example will output the first channel only." > > > > But the output pcm has both channels!?? > > > > When recoding the above mp3 to wav with ffmpeg (4.1.4, no error message) > > > > http://www.mediafire.com/file/gcq7ryg43pd57q5/ffmpeg4.1.4.wav/file > > > > and also when recoding the latter to mp3 again > > > > > http://www.mediafire.com/file/ij865dkrprn2lta/ffmpeg4.1.4_recode.mp3/file > > > > the example code breaks and produces these error messages ("mp2 @ ..." > also > > for the wav file): > > > > avcodec_send_packet () > > from within: > > "[mp2 @ <someAddress>] Header missing" > > and returns error code -1094995529 > > (= "Invalid data found when processing input") > > > > It produces that error message for literally all other formats I tried, > and > > also when written with another editor (Audition 3.0). > > But all the files play and show fine on all programs I have. > > > > I'm at a lost at this point. What is going on and wrong here? > > Just because decode_audio does not skip ID3 metadata from start of > later mp3 file. > That is reasonably as program is just demonstration and not full blown > solution. > > > > > _______________________________________________ > > Libav-user mailing list > > [email protected] > > https://ffmpeg.org/mailman/listinfo/libav-user > > > > To unsubscribe, visit link above, or email > > [email protected] with subject "unsubscribe". > _______________________________________________ > Libav-user mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/libav-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe".
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