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• "connection reset by peer" error when streaming from ffmpeg to ffserver

  7 juillet 2021, par g Kishore

  I'm trying to stream a static video file using ffmpeg to ffserver in androidv7.1.2 embedded board.

  


  

  1. Started ffserver with command "ffserver -d /etc/ffserver.conf &"

  


  2. ffmpeg command used to stream :
ffmpeg -i ./sample_960x400_ocean_with_audio.3gp -f flv http://192.168.47.174:8090/feed1.ffm

  


  


  ffserver.conf file content

  


  HTTPPort 8090&#xA;HTTPBindAddress 192.168.47.174&#xA;MaxHTTPConnections 2000&#xA;MaxClients 1000&#xA;MaxBandwidth 100000&#xA;&#xA;#NoDaemon&#xA;#UseDefaults&#xA;#NoDefaults&#xA;&#xA;<feed>&#xA;File /data/local/tmp/feed1.ffm&#xA;FileMaxSize 5M&#xA;</feed>&#xA;&#xA;<stream>&#xA;Feed feed1.ffm&#xA;Format flv&#xA;&#xA;VideoCodec libx264&#xA;VideoFrameRate 24&#xA;VideoBufferSize 80000&#xA;VideoBitRate 512&#xA;VideoQMin 1&#xA;VideoQMax 5&#xA;VideoSize 960x418&#xA;PreRoll 0&#xA;Noaudio&#xA;</stream>&#xA;

  


  Error :

  


  Thu Jan  1 00:20:04 2015 192.168.47.174 - - [POST] "/feed1.ffm HTTP/1.1" 200 415
av_interleaved_write_frame(): Connection reset by peer
    Last message repeated 1 times
[flv @ 0x41be1d40] Failed to update header with correct duration.
[flv @ 0x41be1d40] Failed to update header with correct filesize.
Error writing trailer of http://192.168.47.174:8090/feed1.ffm: Connection reset by peer
frame=    1 fps=0.0 q=1.6 Lsize=       0kB time=00:00:00.09 bitrate=  33.0kbits/s speed=1.68x    
video:10kB audio:2kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Conversion failed!


  


  Any help is greatly appreciated.

  


• FFMPEG using AV_PIX_FMT_D3D11 gives "Error registering the input resource" from NVENC

  13 novembre 2024, par nbabcock

  Input frames start on the GPU as ID3D11Texture2D pointers.

  


  I encode them to H264 using FFMPEG + NVENC. NVENC works perfectly if I download the textures to CPU memory as format AV_PIX_FMT_BGR0, but I'd like to cut out the CPU texture download entirely, and pass the GPU memory pointer directly into the encoder in native format. I write frames like this :

  


  int write_gpu_video_frame(ID3D11Texture2D* gpuTex, AVFormatContext* oc, OutputStream* ost) {
    AVFrame *hw_frame = ost->hw_frame;

    printf("gpuTex address = 0x%x\n", &gpuTex);

    hw_frame->data[0] = (uint8_t *) gpuTex;
    hw_frame->data[1] = (uint8_t *) (intptr_t) 0;
    hw_frame->pts     = ost->next_pts++;

    return write_frame(oc, ost->enc, ost->st, hw_frame);
    // write_frame is identical to sample code in ffmpeg repo
}


  


  Running the code with this modification gives the following error :

  


  gpuTex address = 0x4582f6d0
[h264_nvenc @ 00000191233e1bc0] Error registering an input resource: invalid call (9):
[h264_nvenc @ 00000191233e1bc0] Could not register an input HW frame
Error sending a frame to the encoder: Unknown error occurred


  


  ---

  


  Here's some supplemental code used in setting up and configuring the hw context and encoder :

  


  /* A few config flags */
#define ENABLE_NVENC TRUE
#define USE_D3D11 TRUE // Skip downloading textures to CPU memory and send it straight to NVENC


  


  /* Init hardware frame context */
static int set_hwframe_ctx(AVCodecContext* ctx, AVBufferRef* hw_device_ctx) {
    AVBufferRef*       hw_frames_ref;
    AVHWFramesContext* frames_ctx = NULL;
    int                err        = 0;

    if (!(hw_frames_ref = av_hwframe_ctx_alloc(hw_device_ctx))) {
        fprintf(stderr, "Failed to create HW frame context.\n");
        throw;
    }
    frames_ctx                    = (AVHWFramesContext*) (hw_frames_ref->data);
    frames_ctx->format            = AV_PIX_FMT_D3D11;
    frames_ctx->sw_format         = AV_PIX_FMT_NV12;
    frames_ctx->width             = STREAM_WIDTH;
    frames_ctx->height            = STREAM_HEIGHT;
    //frames_ctx->initial_pool_size = 20;
    if ((err = av_hwframe_ctx_init(hw_frames_ref)) < 0) {
        fprintf(stderr, "Failed to initialize hw frame context. Error code: %s\n", av_err2str(err));
        av_buffer_unref(&hw_frames_ref);
        throw;
    }
    ctx->hw_frames_ctx = av_buffer_ref(hw_frames_ref);
    if (!ctx->hw_frames_ctx)
        err = AVERROR(ENOMEM);

    av_buffer_unref(&hw_frames_ref);
    return err;
}


  


  /* Add an output stream. */
static void add_video_stream(
    OutputStream* ost,
    AVFormatContext* oc,
    const AVCodec** codec,
    enum AVCodecID  codec_id,
    int width,
    int height
) {
    AVCodecContext* c;
    int             i;
    bool            nvenc = false;

    /* find the encoder */
    if (ENABLE_NVENC) {
        printf("Getting nvenc encoder\n");
        *codec = avcodec_find_encoder_by_name("h264_nvenc");
        nvenc  = true;
    }
    
    if (!ENABLE_NVENC || *codec == NULL) {
        printf("Getting standard encoder\n");
        avcodec_find_encoder(codec_id);
        nvenc = false;
    }
    if (!(*codec)) {
        fprintf(stderr, "Could not find encoder for '%s'\n",
                avcodec_get_name(codec_id));
        exit(1);
    }

    ost->st = avformat_new_stream(oc, NULL);
    if (!ost->st) {
        fprintf(stderr, "Could not allocate stream\n");
        exit(1);
    }
    ost->st->id = oc->nb_streams - 1;
    c           = avcodec_alloc_context3(*codec);
    if (!c) {
        fprintf(stderr, "Could not alloc an encoding context\n");
        exit(1);
    }
    ost->enc = c;

    printf("Using video codec %s\n", avcodec_get_name(codec_id));

    c->codec_id = codec_id;
    c->bit_rate = 4000000;
    /* Resolution must be a multiple of two. */
    c->width  = STREAM_WIDTH;
    c->height = STREAM_HEIGHT;
    /* timebase: This is the fundamental unit of time (in seconds) in terms
        * of which frame timestamps are represented. For fixed-fps content,
        * timebase should be 1/framerate and timestamp increments should be
        * identical to 1. */
    ost->st->time_base = {1, STREAM_FRAME_RATE};
    c->time_base       = ost->st->time_base;
    c->gop_size = 12; /* emit one intra frame every twelve frames at most */

    if (nvenc && USE_D3D11) {
        const std::string hw_device_name = "d3d11va";
        AVHWDeviceType    device_type    = av_hwdevice_find_type_by_name(hw_device_name.c_str());

        // set up hw device context
        AVBufferRef *hw_device_ctx;
        // const char*  device = "0"; // Default GPU (may be integrated in the case of switchable graphics!)
        const char*  device = "1";
        ret = av_hwdevice_ctx_create(&hw_device_ctx, device_type, device, nullptr, 0);

        if (ret < 0) {
            fprintf(stderr, "Could not create hwdevice context; %s", av_err2str(ret));
        }

        set_hwframe_ctx(c, hw_device_ctx);
        c->pix_fmt = AV_PIX_FMT_D3D11;
    } else if (nvenc && !USE_D3D11)
        c->pix_fmt = AV_PIX_FMT_BGR0;
    else
        c->pix_fmt = STREAM_PIX_FMT;

    if (c->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
        /* just for testing, we also add B-frames */
        c->max_b_frames = 2;
    }

    if (c->codec_id == AV_CODEC_ID_MPEG1VIDEO) {
        /* Needed to avoid using macroblocks in which some coeffs overflow.
            * This does not happen with normal video, it just happens here as
            * the motion of the chroma plane does not match the luma plane. */
        c->mb_decision = 2;
    }

    /* Some formats want stream headers to be separate. */
    if (oc->oformat->flags & AVFMT_GLOBALHEADER)
        c->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
}


  


• Debian php ffmpeg error "Could not get frame filename number 2 from pattern"

  22 août 2021, par Sam

  My code below works fine in on my osx laptop

  


  $sec = 1;
$ffmpeg = \FFMpeg\FFMpeg::create([
   'ffmpeg.binaries'  => exec('which ffmpeg'),
   'ffprobe.binaries' => exec('which ffprobe')
]);

$video = $ffmpeg->open($file);
$frame = $video->frame(TimeCode::fromSeconds($sec));
if(!file_exists($newFilePath)) {
      $frame->save($newFilePath);
      $this->output->writeln('make: ' . $newFilePath);
}


  


  but on debian I get error Could not get frame filename number 2 from pattern

  


  here is the error description from ffmpeg website

  


  


  This usually occurs because the output name is incorrect or some option was omitted.
If outputting a single image you need to include -frames:v 1.
If outputting a series of images you need to use the proper naming pattern as described in the image muxer documentation. For example, output_%03d.png will make a series named output_001.png, output_002.png, output_003.png, etc.
If outputting a single image that is continuously overwritten with new images, add -update 1.

  


  


  My filename looks fine to me

  


  here is the detailed error :

  


  ffmpeg failed to execute command '/usr/bin/ffmpeg' '-y' '-ss' '00:00:01.00' '-i' '/var/www/web/public/data/post/J4ukGXDowqFFA6hNIuP11606468845/BuF8e7HrkX1606  
  468845.mov' '-vframes' '1' '-f' 'image2' '/var/www/web/public/data/post/J4ukGXDowqFFA6hNIuP11606468845/BuF8e7HrkX1606468845-preview.webp':

Error Output:

ffmpeg version 4.1.6-1~deb10u1 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 8 (Debian 8.3.0-6)
configuration: --prefix=/usr --extra-version='1~deb10u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd
64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass
--enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libf
ribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-li
bpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-l
ibtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-li
bzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chrom
aprint --enable-frei0r --enable-libx264 --enable-shared
libavutil      56. 22.100 / 56. 22.100
libavcodec     58. 35.100 / 58. 35.100
libavformat    58. 20.100 / 58. 20.100
libavdevice    58.  5.100 / 58.  5.100
libavfilter     7. 40.101 /  7. 40.101
libavresample   4.  0.  0 /  4.  0.  0
libswscale      5.  3.100 /  5.  3.100
libswresample   3.  3.100 /  3.  3.100
libpostproc    55.  3.100 / 55.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/web/public/data/post/J4ukGXDowqFFA6hNIuP11606468845/BuF8e7HrkX1606468845.mov':                               
Metadata:
major_brand     : qt
minor_version   : 0
compatible_brands: qt
creation_time   : 2020-11-27T09:17:34.000000Z
Duration: 00:00:03.18, start: 0.000000, bitrate: 932 kb/s
Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 138 kb/s (default)                                                                 
Metadata:
creation_time   : 2020-11-27T09:17:34.000000Z
handler_name    : Core Media Audio
Stream #0:1(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m/smpte170m/bt709), 480x264, 780 kb/s, 30 fps, 30 tbr, 600 tbn, 1200 tbc (default)  
Metadata:
creation_time   : 2020-11-27T09:17:34.000000Z
handler_name    : Core Media Video
encoder         : H.264
Stream mapping:
Stream #0:1 -> #0:0 (h264 (native) -> webp (libwebp_anim))                                                                                                          
Press [q] to stop, [?] for help
Output #0, image2, to '/var/www/web/public/data/post/J4ukGXDowqFFA6hNIuP11606468845/BuF8e7HrkX1606468845-preview.webp':                                        
Metadata:
major_brand     : qt
minor_version   : 0
compatible_brands: qt
encoder         : Lavf58.20.100
Stream #0:0(und): Video: webp (libwebp_anim), yuv420p, 480x264, q=2-31, 200 kb/s, 30 fps, 30 tbn, 30 tbc (default)                                                
Metadata:
creation_time   : 2020-11-27T09:17:34.000000Z
handler_name    : Core Media Video
encoder         : Lavc58.35.100 libwebp_anim
[image2 @ 0x55bc313ccfc0] Could not get frame filename number 2 from pattern '/var/www/web/public/data/post/J4ukGXDowqFFA6hNIuP11606468845/BuF8e7HrkX16064688  
  45-preview.webp' (either set update or use a pattern like %03d within the filename pattern)                                                                           
  av_interleaved_write_frame(): Invalid argument                                                                                                                        
  frame=    1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.06 bitrate=N/A speed=1.54x                                                                                         
  video:18kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown                                                                       
  Conversion failed!