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

Henk D. Schoneveld belcampo at zonnet.nl
Thu Jul 30 22:33:30 CEST 2015


On 30 Jul 2015, at 20:27, André Luís Duarte <andrelduarte-at-yahoo.com.br at ffmpeg.org> wrote:

> On 30-07-2015 13:06, Steve Boyer wrote:
>> 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  tried running the  video and  I obtained  this output. Now I ran the command as root (sudo su).
> 
> root at linux-Capella-IbexPeak-M-Chipset:/home/linux/Vídeos# ffplay Video1.264
> 
> ffplay version N-73895-g323ec6b Copyright (c) 2003-2015 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=    0B f=0/0
>    nan    :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0
> 
> 
> The video  has  377  MB  and  as  I can not  handle it  do not know  how to edit  and  cut a piece  for you to analyse.
dd if=Video1.264 of=Video1-cut.264 bs=1M count=5
will result in a 5MB file
> 
>>> "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
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