Recherche avancée

Médias (91)

Autres articles (31)

  • Librairies et binaires spécifiques au traitement vidéo et sonore

    31 janvier 2010, par

    Les logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
    Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
    Binaires complémentaires et facultatifs flvtool2 : (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (4772)

  • ffmpeg error "No such file or directory" while compiling a video file compression

    13 janvier 2016, par Abraham Gharyali

    Firstly I have checked many questions and answers related to my question, but unfortunately none of them solves my problem.

    I have implemented ffmpeg library in my project, using it for 2 tasks :

    1). adding watermark on video.

    2). video compression.

    I am able to apply watermark on recorded video successfully using this command :

    {"-y" ,"-i", "/storage/emulated/0/Booms/Videos/video1122150738.mp4","-strict","experimental", "-vf", "movie="
    
+ watermarkFile + " [watermark]; [in][watermark] overlay=main_w-overlay_w-10:10 [out]","-s", "320x240","-r", "30", "-b", "15496k", "-vcodec", "mpeg4","-ab", "48000", "-ac", "2", "-ar", "22050", "/storage/emulated/0/Shared/Videos/video.mp4"}

    "watermarkFile" is the location of .png watermark file

    Now I need to compress video, for that i used this command :

    "ffmpeg -i "+"/storage/emulated/0/Booms/Videos/video1122150738.mp4"+" -vcodec mpeg4 -s 320x240 -r 25 -y "+"/storage/emulated/0/Shared/Videos/video.mp4";

    It gives error "No such file or directory". please see the logs.

    01-11 15:32:39.283 28027-28027/ I/FFmpeg: Loading FFmpeg for armv7-neon CPU
    
01-11 15:32:39.439 28027-28027/ D/FFMPEG: onSuccess.
    
01-11 15:32:39.440 28027-28027/ D/FFMPEG: onFinish.
    
01-11 15:32:55.584 28027-28027/ D/FFMPEG compress: input path: /storage/emulated/0/Booms/Videos/video1122150738.mp4
    
01-11 15:32:55.585 28027-28027/ D/FFMPEG compress: output path: /storage/emulated/0/Shared/Videos/video.mp4
    
01-11 15:32:55.587 28027-28027/ D/FFMPEG compress: Started.
    
01-11 15:32:55.618 28027-28089/ D/FFmpeg: Running publishing updates method
    
01-11 15:32:55.662 28027-28027/ D/FFMPEG compress: Progress: WARNING: linker: /data/data/packge_name/files/ffmpeg has text relocations. This is wasting memory and prevents security hardening. Please fix.
    
01-11 15:32:55.662 28027-28027/ D/FFMPEG compress: Progress: ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
01-11 15:32:55.662 28027-28027/ D/FFMPEG compress: Progress:   built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
    
01-11 15:32:55.662 28027-28027/ D/FFMPEG compress: Progress:   configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
01-11 15:32:55.662 28027-28027/ D/FFMPEG compress: Progress:   libavutil      54.  7.100 / 54.  7.100
    
01-11 15:32:55.662 28027-28027/ D/FFMPEG compress: Progress:   libavcodec     56.  1.100 / 56.  1.100
    
01-11 15:32:55.662 28027-28027/ D/FFMPEG compress: Progress:   libavformat    56.  4.101 / 56.  4.101
    
01-11 15:32:55.662 28027-28027/ D/FFMPEG compress: Progress:   libavdevice    56.  0.100 / 56.  0.100
    
01-11 15:32:55.662 28027-28027/ D/FFMPEG compress: Progress:   libavfilter     5.  1.100 /  5.  1.100
    
01-11 15:32:55.663 28027-28027/ D/FFMPEG compress: Progress:   libswscale      3.  0.100 /  3.  0.100
    
01-11 15:32:55.663 28027-28027/ D/FFMPEG compress: Progress:   libswresample   1.  1.100 /  1.  1.100
    
01-11 15:32:55.663 28027-28027/ D/FFMPEG compress: Progress:   libpostproc    53.  0.100 / 53.  0.100
    
01-11 15:32:55.663 28027-28027/ D/FFMPEG compress: Progress: ffmpeg -i /storage/emulated/0/Booms/Videos/_video1122150738.mp4 -vcodec mpeg4 -s 320x240 -r 25 -y /storage/emulated/0/Shared/Videos/video.mp4: No such file or directory
    
01-11 15:32:55.663 28027-28027/ D/FFMPEG compress: Failure: WARNING: linker: /data/data/package_name/files/ffmpeg has text relocations. This is wasting memory and prevents security hardening. Please fix.
    
                                                                              ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
                                                                                built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
    
                                                                                configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
                                                                                libavutil      54.  7.100 / 54.  7.100
    
                                                                                libavcodec     56.  1.100 / 56.  1.100
    
                                                                                libavformat    56.  4.101 / 56.  4.101
    
                                                                                libavdevice    56.  0.100 / 56.  0.100
    
                                                                                libavfilter     5.  1.100 /  5.  1.100
    
                                                                                libswscale      3.  0.100 /  3.  0.100
    
                                                                                libswresample   1.  1.100 /  1.  1.100
    
                                                                                libpostproc    53.  0.100 / 53.  0.100
    
                                                                              ffmpeg -i /storage/emulated/0/Booms/Videos/video1122150738.mp4 -vcodec mpeg4 -s 320x240 -r 25 -y /storage/emulated/0/Shared/Videos/video.mp4: No such file or directory
    
01-11 15:32:55.663 28027-28027/ D/FFMPEG compress: Finished.

    for both operations i input .mp4 file and need .mp4 file in output.

    Same process works for watermarking and not working for compression.

    My compress command is correct because I checked the same command compressing video in my windows pc using command prompt.

    I don’t understand what i am doing wrong.

    Any help would be appreciated.

  • "moov atom not found" when using av_interleaved_write_frame but not avio_write

    9 octobre 2017, par icStatic

    I am attempting to put together a class that can take arbitrary frames and construct a video from it using the ffmpeg 3.3.3 API. I’ve been struggling to find a good example for this as the examples still seem to be using deprecated functions, so I’ve attempted to patch this using the documentation in the headers and by referring to a few github repos that seem to be using the new version.

    If I use av_interleaved_write_frame to write the encoded packets to the output then ffprobe outputs the following :

    [mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002760120] moov atom not found0
    
X:\Diagnostics.mp4: Invalid data found when processing input

    ffplay is unable to play the file generated using this method.

    If I instead swap it out for a call to avio_write, ffprobe instead outputs :

    Input #0, h264, from 'X:\Diagnostics.mp4':
    
  Duration: N/A, bitrate: N/A
    
    Stream #0:0: Video: h264 (Main), yuv420p(progressive), 672x380 [SAR 1:1 DAR 168:95], 25 fps, 25 tbr, 1200k tbn, 50 tbc

    ffplay can mostly play this file until it gets towards the end, when it outputs :

    Input #0, h264, from 'X:\Diagnostics.mp4':    0KB sq=    0B f=0/0
    
  Duration: N/A, bitrate: N/A
    
    Stream #0:0: Video: h264 (Main), yuv420p(progressive), 672x380 [SAR 1:1 DAR 168:95], 25 fps, 25 tbr, 1200k tbn, 50 tbc
    
[h264 @ 000000000254ef80] error while decoding MB 31 22, bytestream -65
    
[h264 @ 000000000254ef80] concealing 102 DC, 102 AC, 102 MV errors in I frame
    
    nan M-V:    nan fd=   1 aq=    0KB vq=    0KB sq=    0B f=0/0

    VLC cannot play files from either method. The second method’s file displays a single black frame then hides the video output. The first does not display anything. Neither of them give a video duration.

    Does anyone have any ideas what’s happening here ? I assume my solution is close to working as I’m getting a good chunk of valid frames coming through.

    Code :

    void main()
    
{
    
    OutputStream Stream( "Output.mp4", 672, 380, 25, true );
    
    Stream.Initialize();
    

    
    int i = 100;
    
    while( i-- )
    
    {
    
        //... Generate a frame
    

    
        Stream.WriteFrame( Frame );
    
    }
    
    Stream.CloseFile();
    
}
    

    
OutputStream::OutputStream( const std::string& Path, unsigned int Width, unsigned int Height, int Framerate, bool IsBGR )
    
: Stream()
    
, FrameIndex( 0 )
    
{
    
    auto& ID = *m_InternalData;
    

    
    ID.Path = Path;
    

    
    ID.Width = Width;
    
    ID.Height= Height;
    
    ID.Framerate.num = Framerate;
    
    ID.Framerate.den = 1;
    

    
    ID.PixelFormat = IsBGR ? AV_PIX_FMT_BGR24 : AV_PIX_FMT_RGB24;
    
    ID.CodecID = AV_CODEC_ID_H264;
    
    ID.CodecTag = 0;
    

    
    ID.AspectRatio.num = 1;
    
    ID.AspectRatio.den = 1;
    
}
    

    
CameraStreamError OutputStream::Initialize()
    
{
    
    av_log_set_callback( &InputStream::LogCallback );
    
    av_register_all();
    
    avformat_network_init();
    

    
    auto& ID = *m_InternalData;
    

    
    av_init_packet( &ID.Packet );
    

    
    int Result = avformat_alloc_output_context2( &ID.FormatContext, nullptr, nullptr, ID.Path.c_str() );
    
    if( Result < 0 || !ID.FormatContext )
    
    {
    
        STREAM_ERROR( UnknownError );
    
    }
    

    
    AVCodec* Encoder = avcodec_find_encoder( ID.CodecID );
    

    
    if( !Encoder )
    
    {
    
        STREAM_ERROR( NoH264Support );
    
    }
    

    
    AVStream* OutStream = avformat_new_stream( ID.FormatContext, Encoder );
    
    if( !OutStream )
    
    {
    
        STREAM_ERROR( UnknownError );
    
    }
    

    
    ID.CodecContext = avcodec_alloc_context3( Encoder );
    
    if( !ID.CodecContext )
    
    {
    
        STREAM_ERROR( NoH264Support );
    
    }
    

    
    ID.CodecContext->time_base = av_inv_q(ID.Framerate);
    

    
    {
    
        AVCodecParameters* CodecParams = OutStream->codecpar;
    

    
        CodecParams->width = ID.Width;
    
        CodecParams->height = ID.Height;
    
        CodecParams->format = AV_PIX_FMT_YUV420P;
    
        CodecParams->codec_id = ID.CodecID;
    
        CodecParams->codec_type = AVMEDIA_TYPE_VIDEO;
    
        CodecParams->profile = FF_PROFILE_H264_MAIN;
    
        CodecParams->level = 40;
    

    
        Result = avcodec_parameters_to_context( ID.CodecContext, CodecParams );
    
        if( Result < 0 )
    
        {
    
            STREAM_ERROR( EncoderCreationError );
    
        }
    
    }
    

    
    if( ID.IsVideo )
    
    {
    
        ID.CodecContext->width = ID.Width;
    
        ID.CodecContext->height = ID.Height;
    
        ID.CodecContext->sample_aspect_ratio = ID.AspectRatio;
    
        ID.CodecContext->time_base = av_inv_q(ID.Framerate);
    

    
        if( Encoder->pix_fmts )
    
        {
    
            ID.CodecContext->pix_fmt = Encoder->pix_fmts[0];
    
        }
    
        else
    
        {
    
            ID.CodecContext->pix_fmt = ID.PixelFormat;
    
        }
    
    }
    
    //Snip
    

    
    Result = avcodec_open2( ID.CodecContext, Encoder, nullptr );
    
    if( Result < 0 )
    
    {
    
        STREAM_ERROR( EncoderCreationError );
    
    }
    

    
    Result = avcodec_parameters_from_context( OutStream->codecpar, ID.CodecContext );
    
    if( Result < 0 )
    
    {
    
        STREAM_ERROR( EncoderCreationError );
    
    }
    

    
    if( ID.FormatContext->oformat->flags & AVFMT_GLOBALHEADER )
    
    {
    
        ID.CodecContext->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
    
    }
    

    
    OutStream->time_base = ID.CodecContext->time_base;
    
    OutStream->avg_frame_rate= av_inv_q(OutStream->time_base);
    

    
    if( !( ID.FormatContext->oformat->flags & AVFMT_NOFILE ) )
    
    {
    
        Result = avio_open( &ID.FormatContext->pb, ID.Path.c_str(), AVIO_FLAG_WRITE );
    
        if( Result < 0 )
    
        {
    
            STREAM_ERROR( FileNotWriteable );
    
        }
    
    }
    

    
    Result = avformat_write_header( ID.FormatContext, nullptr );
    
    if( Result < 0 )
    
    {
    
        STREAM_ERROR( WriteFailed );
    
    }
    

    
    ID.Output = std::make_unique( ID.CodecContext->width, ID.CodecContext->height, ID.CodecContext->pix_fmt );
    

    
    ID.ConversionContext = sws_getCachedContext(
    
        ID.ConversionContext,
    
        ID.Width,
    
        ID.Height,
    
        ID.PixelFormat,
    
        ID.CodecContext->width,
    
        ID.CodecContext->height,
    
        ID.CodecContext->pix_fmt,
    
        SWS_BICUBIC,
    
        NULL,
    
        NULL,
    
        NULL );
    

    
    return CameraStreamError::Success;
    
}
    

    
CameraStreamError OutputStream::WriteFrame( FFMPEG::Frame* Frame )
    
{
    
    auto& ID = *m_InternalData;
    

    
    ID.Output->Prepare();
    

    
    int OutputSliceSize = sws_scale( m_InternalData->ConversionContext, Frame->GetFrame()->data, Frame->GetFrame()->linesize, 0, Frame->GetHeight(), ID.Output->GetFrame()->data, ID.Output->GetFrame()->linesize );
    

    
    ID.Output->GetFrame()->pts = ID.CodecContext->frame_number;
    

    
    int Result = avcodec_send_frame( GetData().CodecContext, ID.Output->GetFrame() );
    
    if( Result == AVERROR(EAGAIN) )
    
    {
    
        CameraStreamError ResultErr = SendAll();
    
        if( ResultErr != CameraStreamError::Success )
    
        {
    
            return ResultErr;
    
        }
    
        Result = avcodec_send_frame( GetData().CodecContext, ID.Output->GetFrame() );
    
    }
    

    
    if( Result == 0 )
    
    {
    
        CameraStreamError ResultErr = SendAll();
    
        if( ResultErr != CameraStreamError::Success )
    
        {
    
            return ResultErr;
    
        }
    
    }
    

    
    FrameIndex++;
    

    
    return CameraStreamError::Success;
    
}
    

    
CameraStreamError OutputStream::SendAll( void )
    
{
    
    auto& ID = *m_InternalData;
    

    
    int Result;
    
    do 
    
    {
    
        AVPacket TempPacket = {};
    
        av_init_packet( &TempPacket );
    

    
        Result = avcodec_receive_packet( GetData().CodecContext, &TempPacket );
    
        if( Result == 0 )
    
        {
    
            av_packet_rescale_ts( &TempPacket, ID.CodecContext->time_base, ID.FormatContext->streams[0]->time_base );
    

    
            TempPacket.stream_index = ID.FormatContext->streams[0]->index;
    

    
            //avio_write( ID.FormatContext->pb, TempPacket.data, TempPacket.size );
    
            Result = av_interleaved_write_frame( ID.FormatContext, &TempPacket );
    
            if( Result < 0 )
    
            {
    
                STREAM_ERROR( WriteFailed );
    
            }
    

    
            av_packet_unref( &TempPacket );
    
        }
    
        else if( Result != AVERROR(EAGAIN) )
    
        {
    
            continue;
    
        }
    
        else if( Result != AVERROR_EOF )
    
        {
    
            break;
    
        }
    
        else if( Result < 0 )
    
        {
    
            STREAM_ERROR( WriteFailed );
    
        }
    
    } while ( Result == 0);
    

    
    return CameraStreamError::Success;
    
}
    

    
CameraStreamError OutputStream::CloseFile()
    
{
    
    auto& ID = *m_InternalData;
    

    
    while( true )
    
    {
    
        //Flush
    
        int Result = avcodec_send_frame( ID.CodecContext, nullptr );
    
        if( Result == 0 )
    
        {
    
            CameraStreamError StrError = SendAll();
    
            if( StrError != CameraStreamError::Success )
    
            {
    
                return StrError;
    
            }
    
        }
    
        else if( Result == AVERROR_EOF )
    
        {
    
            break;
    
        }
    
        else
    
        {
    
            STREAM_ERROR( WriteFailed );
    
        }
    
    }
    

    
    int Result = av_write_trailer( ID.FormatContext );
    
    if( Result < 0 )
    
    {
    
        STREAM_ERROR( WriteFailed );
    
    }
    

    
    if( !(ID.FormatContext->oformat->flags& AVFMT_NOFILE) )
    
    {
    
        Result = avio_close( ID.FormatContext->pb );
    
        if( Result < 0 )
    
        {
    
            STREAM_ERROR( WriteFailed );
    
        }
    
    }
    

    
    return CameraStreamError::Success;
    
}

    Note I’ve simplified a few things and inlined a few bits that were elsewhere. I’ve also removed all the shutdown code as anything that happens after the file is closed is irrelevant.

    Full repo here : https://github.com/IanNorris/Witness If you clone this the issue is with the ’Diagnostics’ output, the Output file is fine. There are two hardcoded paths to X :.

  • "moov atom not found" when using av_interleaved_write_frame but not avio_write

    9 octobre 2017, par icStatic

    I am attempting to put together a class that can take arbitrary frames and construct a video from it using the ffmpeg 3.3.3 API. I’ve been struggling to find a good example for this as the examples still seem to be using deprecated functions, so I’ve attempted to patch this using the documentation in the headers and by referring to a few github repos that seem to be using the new version.

    If I use av_interleaved_write_frame to write the encoded packets to the output then ffprobe outputs the following :

    [mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002760120] moov atom not found0
    
X:\Diagnostics.mp4: Invalid data found when processing input

    ffplay is unable to play the file generated using this method.

    If I instead swap it out for a call to avio_write, ffprobe instead outputs :

    Input #0, h264, from 'X:\Diagnostics.mp4':
    
  Duration: N/A, bitrate: N/A
    
    Stream #0:0: Video: h264 (Main), yuv420p(progressive), 672x380 [SAR 1:1 DAR 168:95], 25 fps, 25 tbr, 1200k tbn, 50 tbc

    ffplay can mostly play this file until it gets towards the end, when it outputs :

    Input #0, h264, from 'X:\Diagnostics.mp4':    0KB sq=    0B f=0/0
    
  Duration: N/A, bitrate: N/A
    
    Stream #0:0: Video: h264 (Main), yuv420p(progressive), 672x380 [SAR 1:1 DAR 168:95], 25 fps, 25 tbr, 1200k tbn, 50 tbc
    
[h264 @ 000000000254ef80] error while decoding MB 31 22, bytestream -65
    
[h264 @ 000000000254ef80] concealing 102 DC, 102 AC, 102 MV errors in I frame
    
    nan M-V:    nan fd=   1 aq=    0KB vq=    0KB sq=    0B f=0/0

    VLC cannot play files from either method. The second method’s file displays a single black frame then hides the video output. The first does not display anything. Neither of them give a video duration.

    Does anyone have any ideas what’s happening here ? I assume my solution is close to working as I’m getting a good chunk of valid frames coming through.

    Code :

    void main()
    
{
    
    OutputStream Stream( "Output.mp4", 672, 380, 25, true );
    
    Stream.Initialize();
    

    
    int i = 100;
    
    while( i-- )
    
    {
    
        //... Generate a frame
    

    
        Stream.WriteFrame( Frame );
    
    }
    
    Stream.CloseFile();
    
}
    

    
OutputStream::OutputStream( const std::string& Path, unsigned int Width, unsigned int Height, int Framerate, bool IsBGR )
    
: Stream()
    
, FrameIndex( 0 )
    
{
    
    auto& ID = *m_InternalData;
    

    
    ID.Path = Path;
    

    
    ID.Width = Width;
    
    ID.Height= Height;
    
    ID.Framerate.num = Framerate;
    
    ID.Framerate.den = 1;
    

    
    ID.PixelFormat = IsBGR ? AV_PIX_FMT_BGR24 : AV_PIX_FMT_RGB24;
    
    ID.CodecID = AV_CODEC_ID_H264;
    
    ID.CodecTag = 0;
    

    
    ID.AspectRatio.num = 1;
    
    ID.AspectRatio.den = 1;
    
}
    

    
CameraStreamError OutputStream::Initialize()
    
{
    
    av_log_set_callback( &InputStream::LogCallback );
    
    av_register_all();
    
    avformat_network_init();
    

    
    auto& ID = *m_InternalData;
    

    
    av_init_packet( &ID.Packet );
    

    
    int Result = avformat_alloc_output_context2( &ID.FormatContext, nullptr, nullptr, ID.Path.c_str() );
    
    if( Result < 0 || !ID.FormatContext )
    
    {
    
        STREAM_ERROR( UnknownError );
    
    }
    

    
    AVCodec* Encoder = avcodec_find_encoder( ID.CodecID );
    

    
    if( !Encoder )
    
    {
    
        STREAM_ERROR( NoH264Support );
    
    }
    

    
    AVStream* OutStream = avformat_new_stream( ID.FormatContext, Encoder );
    
    if( !OutStream )
    
    {
    
        STREAM_ERROR( UnknownError );
    
    }
    

    
    ID.CodecContext = avcodec_alloc_context3( Encoder );
    
    if( !ID.CodecContext )
    
    {
    
        STREAM_ERROR( NoH264Support );
    
    }
    

    
    ID.CodecContext->time_base = av_inv_q(ID.Framerate);
    

    
    {
    
        AVCodecParameters* CodecParams = OutStream->codecpar;
    

    
        CodecParams->width = ID.Width;
    
        CodecParams->height = ID.Height;
    
        CodecParams->format = AV_PIX_FMT_YUV420P;
    
        CodecParams->codec_id = ID.CodecID;
    
        CodecParams->codec_type = AVMEDIA_TYPE_VIDEO;
    
        CodecParams->profile = FF_PROFILE_H264_MAIN;
    
        CodecParams->level = 40;
    

    
        Result = avcodec_parameters_to_context( ID.CodecContext, CodecParams );
    
        if( Result < 0 )
    
        {
    
            STREAM_ERROR( EncoderCreationError );
    
        }
    
    }
    

    
    if( ID.IsVideo )
    
    {
    
        ID.CodecContext->width = ID.Width;
    
        ID.CodecContext->height = ID.Height;
    
        ID.CodecContext->sample_aspect_ratio = ID.AspectRatio;
    
        ID.CodecContext->time_base = av_inv_q(ID.Framerate);
    

    
        if( Encoder->pix_fmts )
    
        {
    
            ID.CodecContext->pix_fmt = Encoder->pix_fmts[0];
    
        }
    
        else
    
        {
    
            ID.CodecContext->pix_fmt = ID.PixelFormat;
    
        }
    
    }
    
    //Snip
    

    
    Result = avcodec_open2( ID.CodecContext, Encoder, nullptr );
    
    if( Result < 0 )
    
    {
    
        STREAM_ERROR( EncoderCreationError );
    
    }
    

    
    Result = avcodec_parameters_from_context( OutStream->codecpar, ID.CodecContext );
    
    if( Result < 0 )
    
    {
    
        STREAM_ERROR( EncoderCreationError );
    
    }
    

    
    if( ID.FormatContext->oformat->flags & AVFMT_GLOBALHEADER )
    
    {
    
        ID.CodecContext->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
    
    }
    

    
    OutStream->time_base = ID.CodecContext->time_base;
    
    OutStream->avg_frame_rate= av_inv_q(OutStream->time_base);
    

    
    if( !( ID.FormatContext->oformat->flags & AVFMT_NOFILE ) )
    
    {
    
        Result = avio_open( &ID.FormatContext->pb, ID.Path.c_str(), AVIO_FLAG_WRITE );
    
        if( Result < 0 )
    
        {
    
            STREAM_ERROR( FileNotWriteable );
    
        }
    
    }
    

    
    Result = avformat_write_header( ID.FormatContext, nullptr );
    
    if( Result < 0 )
    
    {
    
        STREAM_ERROR( WriteFailed );
    
    }
    

    
    ID.Output = std::make_unique( ID.CodecContext->width, ID.CodecContext->height, ID.CodecContext->pix_fmt );
    

    
    ID.ConversionContext = sws_getCachedContext(
    
        ID.ConversionContext,
    
        ID.Width,
    
        ID.Height,
    
        ID.PixelFormat,
    
        ID.CodecContext->width,
    
        ID.CodecContext->height,
    
        ID.CodecContext->pix_fmt,
    
        SWS_BICUBIC,
    
        NULL,
    
        NULL,
    
        NULL );
    

    
    return CameraStreamError::Success;
    
}
    

    
CameraStreamError OutputStream::WriteFrame( FFMPEG::Frame* Frame )
    
{
    
    auto& ID = *m_InternalData;
    

    
    ID.Output->Prepare();
    

    
    int OutputSliceSize = sws_scale( m_InternalData->ConversionContext, Frame->GetFrame()->data, Frame->GetFrame()->linesize, 0, Frame->GetHeight(), ID.Output->GetFrame()->data, ID.Output->GetFrame()->linesize );
    

    
    ID.Output->GetFrame()->pts = ID.CodecContext->frame_number;
    

    
    int Result = avcodec_send_frame( GetData().CodecContext, ID.Output->GetFrame() );
    
    if( Result == AVERROR(EAGAIN) )
    
    {
    
        CameraStreamError ResultErr = SendAll();
    
        if( ResultErr != CameraStreamError::Success )
    
        {
    
            return ResultErr;
    
        }
    
        Result = avcodec_send_frame( GetData().CodecContext, ID.Output->GetFrame() );
    
    }
    

    
    if( Result == 0 )
    
    {
    
        CameraStreamError ResultErr = SendAll();
    
        if( ResultErr != CameraStreamError::Success )
    
        {
    
            return ResultErr;
    
        }
    
    }
    

    
    FrameIndex++;
    

    
    return CameraStreamError::Success;
    
}
    

    
CameraStreamError OutputStream::SendAll( void )
    
{
    
    auto& ID = *m_InternalData;
    

    
    int Result;
    
    do 
    
    {
    
        AVPacket TempPacket = {};
    
        av_init_packet( &TempPacket );
    

    
        Result = avcodec_receive_packet( GetData().CodecContext, &TempPacket );
    
        if( Result == 0 )
    
        {
    
            av_packet_rescale_ts( &TempPacket, ID.CodecContext->time_base, ID.FormatContext->streams[0]->time_base );
    

    
            TempPacket.stream_index = ID.FormatContext->streams[0]->index;
    

    
            //avio_write( ID.FormatContext->pb, TempPacket.data, TempPacket.size );
    
            Result = av_interleaved_write_frame( ID.FormatContext, &TempPacket );
    
            if( Result < 0 )
    
            {
    
                STREAM_ERROR( WriteFailed );
    
            }
    

    
            av_packet_unref( &TempPacket );
    
        }
    
        else if( Result != AVERROR(EAGAIN) )
    
        {
    
            continue;
    
        }
    
        else if( Result != AVERROR_EOF )
    
        {
    
            break;
    
        }
    
        else if( Result < 0 )
    
        {
    
            STREAM_ERROR( WriteFailed );
    
        }
    
    } while ( Result == 0);
    

    
    return CameraStreamError::Success;
    
}
    

    
CameraStreamError OutputStream::CloseFile()
    
{
    
    auto& ID = *m_InternalData;
    

    
    while( true )
    
    {
    
        //Flush
    
        int Result = avcodec_send_frame( ID.CodecContext, nullptr );
    
        if( Result == 0 )
    
        {
    
            CameraStreamError StrError = SendAll();
    
            if( StrError != CameraStreamError::Success )
    
            {
    
                return StrError;
    
            }
    
        }
    
        else if( Result == AVERROR_EOF )
    
        {
    
            break;
    
        }
    
        else
    
        {
    
            STREAM_ERROR( WriteFailed );
    
        }
    
    }
    

    
    int Result = av_write_trailer( ID.FormatContext );
    
    if( Result < 0 )
    
    {
    
        STREAM_ERROR( WriteFailed );
    
    }
    

    
    if( !(ID.FormatContext->oformat->flags& AVFMT_NOFILE) )
    
    {
    
        Result = avio_close( ID.FormatContext->pb );
    
        if( Result < 0 )
    
        {
    
            STREAM_ERROR( WriteFailed );
    
        }
    
    }
    

    
    return CameraStreamError::Success;
    
}

    Note I’ve simplified a few things and inlined a few bits that were elsewhere. I’ve also removed all the shutdown code as anything that happens after the file is closed is irrelevant.

    Full repo here : https://github.com/IanNorris/Witness If you clone this the issue is with the ’Diagnostics’ output, the Output file is fine. There are two hardcoded paths to X :.

Navigation