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

André Luís Duarte andrelduarte at yahoo.com.br
Sat Aug 1 02:39:35 CEST 2015


Thanks  Henk,  the cut was  successful.  Steve follow the  link to  the files you  put  in  dropbox:

- https://www.dropbox.com/s/k8yl5h6fx5o1q9l/Video1Cut.264?oref=e&n=451062852 (File with five mb of video and audio)
- https://www.dropbox.com/s/xuu95dg6jw6f4q0/H264Player_install.exe?oref=e&n=451062852 (Application that displays the video with audio)

The  strange  thing  occurred.  If  open the  file that was cut in  Windows  with theprogram H264Player_install.exe,  then go back  to  linux  and  Video1Cut.264  ffplay  works  correctly,  but without  the
audio.  All other commands  also work  normally  except  the audio.

- https://www.dropbox.com/s/qgyulo8mbnqkwub/Video1.264?oref=e&n=451062852 (file full)

On 30-07-2015 17:33, Henk D. Schoneveld wrote:

> 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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