[FFmpeg-user] Convert .256 to avi with audio
Henk D. Schoneveld
belcampo at zonnet.nl
Sat Aug 1 14:59:51 CEST 2015
On 01 Aug 2015, at 02:39, André Luís Duarte <andrelduarte-at-yahoo.com.br at ffmpeg.org> wrote:
> 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.
Without having looked at the files.
My conclusion is that the problem appears after cutting with H264Player_install.exe, is that correct ?
If correct, cut under linux. If you know where to cut, it’s quit easy.
ffmpeg -ss 10 -i source.ext -t 30 source-cutted.ext
Result: 30 seconds from source.ext where the first 10 seconds are skipped.
>
> - 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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