[FFmpeg-user] Convert .256 to avi with audio

[Steve Boyer]

On Jul 30, 2015 10:24 AM, "André Luís Duarte" <
andrelduarte-at-yahoo.com.br at ffmpeg.org> wrote:
>
> Hi Guys. Thanks for the feedback. Steve, I initially tried the following
command, and the result was as follows:
>
> linux at linux-Capella-IbexPeak-M-Chipset:~/Vídeos$ sudo ffmpeg -i
Video1.264 -vcodec copy Video1.avi
> ffmpeg version N-73895-g323ec6b Copyright (c) 2000-2015 the FFmpeg
developers
> built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
> configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --enable-avresample
--disable-debug --enable-nonfree --enable-gpl --enable-version3
--enable-libopencore-amrnb --enable-libopencore-amrwb
--disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse
--enable-libdcadec --enable-libx264 --enable-libx265 --enable-libfdk-aac
--enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx
--enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr
--enable-libxvid --enable-libvo-aacenc --enable-libvidstab
> libavutil      54. 28.100 / 54. 28.100
> libavcodec     56. 50.101 / 56. 50.101
> libavformat    56. 40.101 / 56. 40.101
> libavdevice    56.  4.100 / 56.  4.100
> libavfilter     5. 25.100 /  5. 25.100
> libavresample   2.  1.  0 /  2.  1.  0
> libswscale      3.  1.101 /  3.  1.101
> libswresample   1.  2.101 /  1.  2.101
> libpostproc    53.  3.100 / 53.  3.100
> Video1.264: Invalid data found when processing input
>

This is curious - it's almost as if ffmpeg doesn't recognize this as a
valid video. Can you run "file video1.264" for us? Or even better, can you
provide a small sample for us to take a look at and see for ourselves?

> "I ran the command after giving full permission to access the file.
(chmod 777 Video1.264)"
>

Again, your commands use sudo to run ffmpeg as root. You shouldn't have to
do this. With a 777 permission, the file is wide open for anyone. Your
restriction would then be the directory permissions.

> After searching the internet, I saw a post suggesting use -f to force
ffmpeg h264 treat Video1.264 file in h264 format. As I understand the error
in the first command it was that ffmpeg could not identify the file type.
Once put -f H264 format was identified. I did not know that the h264 format
does not have audio.
>
> Moritz, if I do not put -f H264, in the example I posted without the -f
option h264 in the end we can see that ffmpeg could not identify the file
format.
>
> I tried to check the audio as you suggested to see the result and ffmpeg
still not identifying the file format.
>
> linux at linux-Capella-IbexPeak-M-Chipset:~/Vídeos$ sudo ffmpeg -i
Video1.264 -vn -af volumedetect -f null -
> ffmpeg version N-73895-g323ec6b Copyright (c) 2000-2015 the FFmpeg
developers
> built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
> configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --enable-avresample
--disable-debug --enable-nonfree --enable-gpl --enable-version3
--enable-libopencore-amrnb --enable-libopencore-amrwb
--disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse
--enable-libdcadec --enable-libx264 --enable-libx265 --enable-libfdk-aac
--enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx
--enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr
--enable-libxvid --enable-libvo-aacenc --enable-libvidstab
> libavutil      54. 28.100 / 54. 28.100
> libavcodec     56. 50.101 / 56. 50.101
> libavformat    56. 40.101 / 56. 40.101
> libavdevice    56.  4.100 / 56.  4.100
> libavfilter     5. 25.100 /  5. 25.100
> libavresample   2.  1.  0 /  2.  1.  0
> libswscale      3.  1.101 /  3.  1.101
> libswresample   1.  2.101 /  1.  2.101
> libpostproc    53.  3.100 / 53.  3.100
> Video1.264: Invalid data found when processing input
>
> It would be really cool if I could generate the graphics, I'll keep
trying and researching.
>
> Just a note, I am new to using ffmpeg, so I can post things that are my
interpretation of what I have read.
>
>
>
>
> Em Quarta-feira, 29 de Julho de 2015 17:46, Moritz Barsnick <
barsnick at gmx.net> escreveu:
> (André, your subject is wrong. ;-))
>
> On Wed, Jul 29, 2015 at 15:33:31 -0500, Steve Boyer wrote:
> > On Wed, Jul 29, 2015 at 3:09 PM, André Luís Duarte
> > <andrelduarte-at-yahoo.com.br at ffmpeg.org> wrote:
>
> > Probably shouldn't run ffmpeg as root, as your resulting video will be
> > owned by root and can easily cause all kinds of permission issues.
>
> There should _never_ be a need for this. If ffmpeg can't access a
> device or file, fix that file's permissions.
>
> > What I'm guessing is that the "-f H264" is telling ffmpeg that you
> > want to export a .264 container format - which only contains video
>
> No, it was given as an option _before_ "-i", so it's telling ffmpeg to
> _import_ the given file as a raw H.264 stream. And that doesn't work
> too well, because it can't be such a raw video if it contains audio.
>
> As Steve suggested, just let ffmpeg detect the input itself.
>
> To analyze the overall audio volume:
> $ ffmpeg -i inputfile -vn -af volumedetect -f null -
>
> (ffmpeg can also create graphs of the audio levels or waveforms over
> time. Otherwise, you may want something like audacity.)
>
> Moritz
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user