Recherche avancée

Sur d’autres sites (9150)

• Is there a way to ask ffmpeg to provide the list of performed actions ?

  14 juin 2021, par oleksant

  In the scope of different operations done by the FFmpeg (i.e. transcoding) number of actions can be performed. Is there a way to retrieve some sort of an action list.

  


  Smth, like the following :

  


   {
    "Operation": "Resample",
    "DataType": "Audio",
    "From": "16Khz",
    "To": "48Khz"
  },
  {
    "Operation": "Scale",
    "DataType": "Video",
    "From": "1024x768 (4:3)",
    "To": "1920x1080 (16:9)"
  }


  


  I have searched through FFmpeg commands but could not find anything useful.

  


  Thank you

  


• Package is installed inside docker but actual command provide exception

  1er juin 2022, par user1765862

  I'm trying to use ffmpeg core package inside .net 6 dockerized project. I install ffmpeg core inside Dockerfile, reference actual package FFMpegCore inside solution but when I try to apply any of the commands from the ffmpeg core lib I'm getting error

  


  


  An error occurred trying to start process './ffmpeg' with working
directory '/var/task'. No such file or directory

  


  


  Docker build is done with no error.

  


  Dockerfile

  


  FROM public.ecr.aws/lambda/dotnet:6 AS base
....
RUN apt-get install -y ffmpeg
....
FROM base AS final
WORKDIR /var/task
COPY --from=publish /app/publish .


  


  As per ffmpeg core docs in order to use ffmpeg I need to set its binary folder, so I add ffmpeg.config.json

  


  {
  "BinaryFolder": "/var/task",
  "TemporaryFilesFolder": "/tmp"
}


  


  Actual error is being thrown when I try to execute following command

  


  


  An error occurred trying to start process './ffmpeg' with working
directory '/var/task'. No such file or directory

  


  


  This is the place where error gets triggered

  


   using FFMpegCore;&#xA; ...&#xA; public class MyController : ControllerBase&#xA;    {&#xA;        public async Task<string> Get()&#xA;        {    &#xA;             await FFMpegArguments&#xA;                   .FromPipeInput(new StreamPipeSource(myfile))&#xA;                   .OutputToPipe(new StreamPipeSink(outputStream), options => options&#xA;                      .WithVideoCodec("vp9")&#xA;                      .ForceFormat("webm"))&#xA;                      .ProcessAsynchronously();&#xA;             ...&#xA;        }    &#xA;    }&#xA;</string>

  


  Update :
After changing BinaryFolder location to /usr/bin I'm getting following error

  


  An error occurred trying to start process '/usr/bin/ffmpeg' with working directory '/var/task'. No such file or directory


  


  Update #2
This is my complete Dockerfile

  


  FROM public.ecr.aws/lambda/dotnet:6 AS base

FROM mcr.microsoft.com/dotnet/sdk:6.0-bullseye-slim as build
WORKDIR /src
COPY ["AWSServerless.csproj", "AWSServerless/"]
RUN dotnet restore "AWSServerless/AWSServerless.csproj"

WORKDIR "/src/AWSServerless"
COPY . .
RUN dotnet build "AWSServerless.csproj" --configuration Release --output /app/build

FROM build AS publish   

RUN apt-get update \
    && apt-get install -y apt-utils libgdiplus libc6-dev \
    && apt-get install -y ffmpeg

RUN dotnet publish "AWSServerless.csproj" \
            --configuration Release \ 
            --runtime linux-x64 \
            --self-contained false \ 
            --output /app/publish \
            -p:PublishReadyToRun=true  

FROM base AS final
WORKDIR /var/task

CMD ["AWSServerless::AWSServerless.LambdaEntryPoint::FunctionHandlerAsync"]
COPY --from=publish /app/publish .


  


• Is it possible to encrypt mpeg-dash clear content in ffmpeg ?

  22 novembre 2017, par diS

  Is it possible to encrypt mpeg-dash clear content in ffmpeg ? or do we need to additional code to handle the encryption ?

  From ffmpeg dashenc.c code it appears that dash code does not encrypt the content.
  Can we reuse the mp4 muxer for encrypting and dash for segmenting ?