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I have an mp3 file that I can't play with any of my audio players that I have on Windows 8, so I decided to convert it using ffmpeg. I downloaded it from a website, which was able to play the mp3. I want to keep 497 seconds from the 219th second onwards.
ffmpeg -ss 219 -t 497 -i INPUT.mp3 -codec:a libmp3lame -qscale:a 9 OUTPUT.mp3
I believe I was correct using this command, but ffmpeg gives the following output:
ffmpeg version N-58456-ga9a3afe Copyright (c) 2000-2013 the FFmpeg developers
built on Nov 25 2013 22:01:38 with gcc 4.8.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 54.100 / 52. 54.100
libavcodec 55. 44.100 / 55. 44.100
libavformat 55. 21.102 / 55. 21.102
libavdevice 55. 5.100 / 55. 5.100
libavfilter 3. 91.100 / 3. 91.100
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
[mp3 @ 003beaa0] Could not find codec parameters for stream 0 (Audio: mp3, 0 channels, s16p): unspecified frame size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
bitcoin_spraakherkenning.mp3: could not find codec parameters
Do I need to specify the framesize / analyzeduration / probesize values? And if so, how?
Lewistrick
Posted 2015-01-31T15:47:38.827
Reputation: 111
1If none of the audio players (which ones, actually?) can play it, then the file must be broken, and ffmpeg will also not be able to convert it. How exactly do you mean, "which was able to play the mp3"? Did you make sure the download itself isn't corrupt? How are you certain the file you downloaded was the exact same as used on said website? – slhck – 2015-01-31T17:42:56.587
That said, you could try with a more recent ffmpeg build. Yours is already more than a year old. http://ffmpeg.org/download.html
– slhck – 2015-01-31T17:43:36.883