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• 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 .


  


• avformat/webmdashenc : Don't pass NULL to memcmp

  23 septembre 2019, par Andreas Rheinhardt

  avformat/webmdashenc : Don't pass NULL to memcmp
  Affects the FATE-tests webm-dash-manifest-unaligned-video-streams,
  
  webm-dash-manifest and webm-dash-manifest-representations.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavformat/webmdashenc.c

• Nginx VOD Transcoding

  21 décembre 2015, par nicb19

  I’m trying to setup MPEG-DASH video on demand streaming using nginx. I came across the nginx vod module which works great with dash.js but am wondering if anyone has managed to get real-time transcoding working.

  I’ve currently got it setup to play H264 MP4 local files, producing a MPD manifest for a single MP4. I know I can transcode multiple versions of the video and store them on the server, creating a multi URL manifest, but I only have limited space on the server so am not able to do this. Instead, I’m trying to find a way to transcode in real-time to allow more adaptive bitrate streaming like is possible with the nginx rtmp module and ffmpeg (however with MPEG-DASH instead of RTMP since I don’t want to use flash).

  Does anyone know of a way to do this ? Thanks in advanced.