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• CVAT error during installation of development version

  28 novembre 2022, par Raman

  I'm trying to install development version of CVAT according to official instruction but struggling at the step of requirements.txt applying :

  


  pip install -r cvat/requirements/development.txt


  


  ... with following error :

  


  Skipping wheel build for av, due to binaries being disabled for it.
Skipping wheel build for datumaro, due to binaries being disabled for it.
Installing collected packages: wrapt, tf-estimator-nightly, termcolor, tensorboard-plugin-wit, Shapely, rules, rope, rjsmin, rcssmin, pytz, pyasn1, patool, mistune, mccabe, libclang, keras, itypes, flatbuffers, entrypoint2, EasyProcess, dj-pagination, diskcache, av, addict, Werkzeug, urllib3, uritemplate, typing-extensions, tqdm, tornado, toml, threadpoolctl, tensorflow-io-gcs-filesystem, tensorboard-data-server, sqlparse, smmap, six, ruamel.yaml.clib, rsa, redis, PyYAML, pyunpack, pyrsistent, pyparsing, pylogbeat, pyjwt, Pygments, pycparser, pyasn1-modules, protobuf, Pillow, oauthlib, numpy, networkx, natsort, MarkupSafe, Markdown, lxml, lazy-object-proxy, kiwisolver, joblib, jmespath, isort, inflection, idna, google-crc32c, gast, fonttools, dnspython, django-extensions, deprecated, defusedxml, cycler, click, charset-normalizer, certifi, cachetools, attrs, asgiref, absl-py, tensorboardX, snakeviz, scipy, ruamel.yaml, rq, requests, python3-openid, python-ldap, python-dateutil, pdf2image, packaging, orderedmultidict, opt-einsum, opencv-python-headless, opencv-python, keras-preprocessing, jsonschema, jinja2, isodate, h5py, grpcio, googleapis-common-protos, google-resumable-media, google-pasta, google-auth, gitdb, Django, cffi, astunparse, astroid, scikit-learn, requests-oauthlib, pylint, pandas, matplotlib, limits, google-api-core, GitPython, furl, djangorestframework, django-sendfile2, django-rq, django-filter, django-cors-headers, django-auth-ldap, django-appconf, cryptography, croniter, coreschema, botocore, azure-core, s3transfer, rq-scheduler, python-logstash-async, pylint-plugin-utils, pycocotools, open3d, msrest, google-cloud-core, google-auth-oauthlib, drf-spectacular, django-rest-auth, django-compressor, coreapi, tensorboard, pylint-django, google-cloud-storage, django-allauth, datumaro, boto3, azure-storage-blob, tensorflow
  Running setup.py install for av ... error
  error: subprocess-exited-with-error
  
  × Running setup.py install for av did not run successfully.
  │ exit code: 1
  ╰─> [50 lines of output]
      running install
      /Users/dd/cvat/.env/lib/python3.9/site-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
        warnings.warn(
      running build
      running build_py
      creating build
      creating build/lib.macosx-12.4-x86_64-cpython-39
      creating build/lib.macosx-12.4-x86_64-cpython-39/av
      copying av/deprecation.py -> build/lib.macosx-12.4-x86_64-cpython-39/av
      copying av/datasets.py -> build/lib.macosx-12.4-x86_64-cpython-39/av
      copying av/__init__.py -> build/lib.macosx-12.4-x86_64-cpython-39/av
      copying av/__main__.py -> build/lib.macosx-12.4-x86_64-cpython-39/av
      creating build/lib.macosx-12.4-x86_64-cpython-39/av/video
      copying av/video/__init__.py -> build/lib.macosx-12.4-x86_64-cpython-39/av/video
      creating build/lib.macosx-12.4-x86_64-cpython-39/av/codec
      copying av/codec/__init__.py -> build/lib.macosx-12.4-x86_64-cpython-39/av/codec
      creating build/lib.macosx-12.4-x86_64-cpython-39/av/container
      copying av/container/__init__.py -> build/lib.macosx-12.4-x86_64-cpython-39/av/container
      creating build/lib.macosx-12.4-x86_64-cpython-39/av/audio
      copying av/audio/__init__.py -> build/lib.macosx-12.4-x86_64-cpython-39/av/audio
      creating build/lib.macosx-12.4-x86_64-cpython-39/av/subtitles
      copying av/subtitles/__init__.py -> build/lib.macosx-12.4-x86_64-cpython-39/av/subtitles
      creating build/lib.macosx-12.4-x86_64-cpython-39/av/filter
      copying av/filter/__init__.py -> build/lib.macosx-12.4-x86_64-cpython-39/av/filter
      creating build/lib.macosx-12.4-x86_64-cpython-39/av/sidedata
      copying av/sidedata/__init__.py -> build/lib.macosx-12.4-x86_64-cpython-39/av/sidedata
      creating build/lib.macosx-12.4-x86_64-cpython-39/av/data
      copying av/data/__init__.py -> build/lib.macosx-12.4-x86_64-cpython-39/av/data
      running build_ext
      running config
      PyAV: 8.0.2 (unknown commit)
      Python: 3.9.10 (main, Jun 28 2022, 17:49:16) \n[Clang 13.1.6 (clang-1316.0.21.2.5)]
      platform: macOS-12.4-x86_64-i386-64bit
      extension_extra:
          include_dirs: [b'include']
          libraries: []
          library_dirs: []
          define_macros: []
          runtime_library_dirs: []
      config_macros:
          PYAV_COMMIT_STR="unknown-commit"
          PYAV_VERSION=8.0.2
          PYAV_VERSION_STR="8.0.2"
      Could not find libavformat with pkg-config.
      Could not find libavcodec with pkg-config.
      Could not find libavdevice with pkg-config.
      Could not find libavutil with pkg-config.
      Could not find libavfilter with pkg-config.
      Could not find libswscale with pkg-config.
      Could not find libswresample with pkg-config.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: legacy-install-failure

× Encountered error while trying to install package.
╰─> av


  


  I have already tried suggested fixes, but no luck :
https://github.com/openvinotoolkit/cvat/issues/4406

  


  Environment :

  


  

  • MacBook Pro (Intel x64)

  


  • macOS Monterey (Version 12.4)

  


  • (pyenv) Python 3.9.10

  


  


  What other options could be applied to fix it ?

  


• Duplicate a signal with FFmpeg library [on hold]

  22 septembre 2016, par Meugiwara

  I’m using the FFmpeg library to develop a program in C/C++. At this time, my aim is to duplicate the signal when I open an audio file. My scheme is the next : read an audio file, transform the stereo signal in mono signal and duplicate this mono signal to get two mono signal exactly the same.

  I watched in the Doxygen documentation on the official website, but I don’t find something interesting. Do someone know a good way to do this ?

  Here’s what I have so far :

  #include 
  
  #include 
  
  #include 
  
  
  
  #define __STDC_CONSTANT_MACROS
  
  
  
  #ifdef _WIN32
  
  
  
  extern "C" /* Windows */
  
  {
  
      #include "libswresample/swresample.h"
  
      #include "libavformat/avformat.h"
  
      #include "libavcodec/avcodec.h"
  
      #include "SDL2/SDL.h"
  
  };
  
  
  
  #else
  
  
  
  #ifdef __cplusplus
  
  
  
  extern "C" /* Linux */
  
  {
  
      #endif /* __cplusplus */
  
      #include <libswresample></libswresample>swresample.h>
  
      #include <libavformat></libavformat>avformat.h>
  
      #include <libavcodec></libavcodec>avcodec.h>
  
      #include <sdl2></sdl2>SDL.H>
  
      #ifdef __cplusplus
  
  };
  
  
  
  #endif /* __cplusplus */
  
  
  
  #endif /* _WIN32 */
  
  
  
  #define MAX_AUDIO_FRAME_SIZE 192000 /* 1 second of 48 kHz 32 bits audio*/
  
  #define OUTPUT_PCM 1 /* Output PCM */
  
  #define USE_SDL 1 /* Use SDL */
  
  
  
  /* Les incrémentations */
  
  static Uint32 audio_len;
  
  static Uint8 *audio_chunk;
  
  static Uint8 *audio_pos;
  
  
  
  void    fill_audio(void *udata, Uint8 *stream, int len)
  
  {
  
      SDL_memset(stream, 0, len); /* SDL 2.0 */
  
      if (audio_len == 0)
  
          return;
  
      len = (len > audio_len ? audio_len : len);
  
      SDL_MixAudio(stream, audio_pos, len, SDL_MIX_MAXVOLUME);
  
      audio_pos = audio_pos + len;
  
      audio_len = audio_len - len;
  
  }
  
  
  
  int     reading_sound(char *str)
  
  {
  
      SDL_AudioSpec       wanted_spec;
  
      AVFormatContext     *pFormatCtx;
  
      AVCodecContext      *pCodecCtx;
  
      AVSampleFormat      out_sample_fmt;
  
      AVPacket            *packet;
  
      AVFrame             *pFrame;
  
      AVCodec             *pCodec;
  
      uint64_t            out_channel_layout;
  
      uint8_t             *out_buffer;
  
      int64_t             in_channel_layout;
  
      struct SwrContext   *au_convert_ctx;
  
      int                 out_sample_rate;
  
      int                 out_buffer_size;
  
      int                 out_nb_samples;
  
      int                 out_channels;
  
      int                 audioStream;
  
      int                 got_picture;
  
      int                 index = 0;
  
      int                 ret;
  
      int                 i;
  
      FILE                *pFile = NULL;
  
      /*
  
      //char              *sound = "WavinFlag.aac";
  
      */
  
  
  
      av_register_all();
  
      avformat_network_init();
  
      pFormatCtx = avformat_alloc_context();
  
      if (avformat_open_input(&amp;pFormatCtx, str, NULL, NULL) != 0) /* Ouverture du fichier */
  
      {
  
          fprintf(stderr, "%s\n", "Couldn't open input stream");
  
          return (-1);
  
      }
  
      if (avformat_find_stream_info(pFormatCtx, NULL) &lt; 0) /* Récupérer les informations */
  
      {
  
          fprintf(stderr, "Couldn't find stream information\n");
  
          return (-1);
  
      }
  
      av_dump_format(pFormatCtx, 0, str, false); /* Envoyer les informations utiles sur la sortie d'erreur */
  
      audioStream = -1;
  
      for (i = 0; i &lt; pFormatCtx->nb_streams; i++) /* Trouver le début du son */
  
          if (pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO)
  
          {
  
              audioStream = i;
  
              break;
  
          }
  
      if (audioStream == -1)
  
      {
  
          fprintf(stderr, "%s\n", "Didn't find an audio stream");
  
          return (-1);
  
      }
  
      pCodecCtx = pFormatCtx->streams[audioStream]->codec;
  
      pCodec = avcodec_find_decoder(pCodecCtx->codec_id); /* Trouver le décodeur du fichier (.aac, .mp3, ...) */
  
      if (pCodec == NULL)
  
      {
  
          fprintf(stderr, "%s\n", "Codec not found");
  
          return (-1);
  
      }
  
      if (avcodec_open2(pCodecCtx, pCodec, NULL) &lt; 0) /* Ouvrir le décodeur du fichier */
  
      {
  
          fprintf(stderr, "%s\n", "Couldn't open codec");
  
          return (-1);
  
      }
  
  
  
      #if OUTPUT_PCM
  
  
  
          pFile = fopen("output.pcm", "wb"); /* Créer et écrire tout ce qui se passe dans ce fichier */
  
  
  
      #endif /* OUTPUT_PCM */
  
  
  
      packet = (AVPacket *)av_malloc(sizeof(AVPacket)); /* Allouer taille */
  
      av_init_packet(packet);
  
      out_channel_layout = AV_CH_LAYOUT_MONO; /* Canaux de sortie */
  
      out_nb_samples = pCodecCtx->frame_size; /* L'échantillonnage - Le nombre de samples*/
  
      out_sample_fmt = AV_SAMPLE_FMT_S16; /* Format */
  
      out_sample_rate = 44100; /* Fréquence */
  
      out_channels = av_get_channel_layout_nb_channels(out_channel_layout); /* Récupérer le nombre de canaux */
  
      /*
  
      // printf("%d\n", out_channels);
  
      // system("PAUSE");
  
      */
  
      out_buffer_size = av_samples_get_buffer_size(NULL, out_channels, out_nb_samples, out_sample_fmt, 1); /* Taille du buffer */
  
      out_buffer = (uint8_t *)av_malloc(MAX_AUDIO_FRAME_SIZE * 2); /* Allouer taille */
  
      pFrame = av_frame_alloc(); /* Allouer taille */
  
  
  
      #if USE_SDL
  
  
  
          if (SDL_Init(SDL_INIT_VIDEO |SDL_INIT_AUDIO | SDL_INIT_TIMER)) /* Initialiser SDL */
  
          {
  
              fprintf(stderr, "%s - %s\n", "Couldn't initialize SDL", SDL_GetError());
  
              return (-1);
  
          }
  
          /*
  
          // Attribution des valeurs avec les variables au-dessus
  
          */
  
          wanted_spec.freq = out_sample_rate;
  
          wanted_spec.format = AUDIO_S16SYS;
  
          wanted_spec.channels = out_channels;
  
          wanted_spec.silence = 0;
  
          wanted_spec.samples = out_nb_samples;
  
          wanted_spec.callback = fill_audio;
  
          wanted_spec.userdata = pCodecCtx;
  
          if (SDL_OpenAudio(&amp;wanted_spec, NULL) &lt; 0)
  
          {
  
              fprintf(stderr, "%s\n", "Can't open audio");
  
              return (-1);
  
          }
  
  
  
      #endif /* USE_SDL */
  
  
  
      in_channel_layout = av_get_default_channel_layout(pCodecCtx->channels);
  
      au_convert_ctx = swr_alloc();
  
      au_convert_ctx = swr_alloc_set_opts(au_convert_ctx, out_channel_layout, out_sample_fmt, out_sample_rate,
  
      in_channel_layout, pCodecCtx->sample_fmt, pCodecCtx->sample_rate, 0, NULL);
  
      swr_init(au_convert_ctx);
  
      while (av_read_frame(pFormatCtx, packet) >= 0) /* Lecture du fichier */
  
      {
  
          if (packet->stream_index == audioStream)
  
          {
  
              ret = avcodec_decode_audio4(pCodecCtx, pFrame, &amp;got_picture, packet); /* Décoder les packets */
  
              if (ret &lt; 0)
  
              {
  
                  fprintf(stderr, "%s\n", "Error in decoding audio frame");
  
                  return (-1);
  
              }
  
              if (got_picture > 0)
  
              {
  
                  swr_convert(au_convert_ctx, &amp;out_buffer, MAX_AUDIO_FRAME_SIZE, (const uint8_t **)pFrame->data, pFrame->nb_samples);
  
  
  
      #if 1
  
  
  
                  printf("Index : %5d\t Points : %lld\t Packet size : %d\n", index, packet->pts, packet->size); /* Affichage des informations sur la console */
  
  
  
      #endif /* 1 */
  
  
  
      #if OUTPUT_PCM
  
  
  
                  fwrite(out_buffer, 1, out_buffer_size, pFile); /* Faire l'écriture dans le fichier */
  
  
  
      #endif /* OUTPUT_PCM */
  
  
  
                  index = index + 1;
  
              }
  
  
  
      #if USE_SDL
  
  
  
              while (audio_len > 0)
  
                  SDL_Delay(1);
  
              audio_chunk = (Uint8 *)out_buffer;
  
              audio_len = out_buffer_size;
  
              audio_pos = audio_chunk;
  
              SDL_PauseAudio(0);
  
  
  
      #endif /* USE_SDL */
  
  
  
          }
  
          av_free_packet(packet); /* Libérer les packets */
  
      }
  
      swr_free(&amp;au_convert_ctx); /* Libérer la taille de conversion */
  
  
  
      #if USE_SDL
  
  
  
      SDL_CloseAudio(); /* Arrêter le son dans SDL */
  
      SDL_Quit(); /* Quitter SDL */
  
  
  
      #endif /* USE_SDL */
  
  
  
      #if OUTPUT_PCM
  
  
  
      fclose(pFile); /* Fermer le fichier d'écriture */
  
  
  
      #endif /* OUTPUT_PCM */
  
  
  
      av_free(out_buffer);
  
      avcodec_close(pCodecCtx); /* Fermer le décodeur */
  
      avformat_close_input(&amp;pFormatCtx); /* Fermer le fichier lu */
  
      return (0);
  
  }
  
  
  
  int     main(int argc, char **argv)
  
  {
  
  
  
      if (argc != 2)
  
      {
  
          fprintf(stderr, "%s\n", "Usage : ./BASELFI [File]");
  
          system("PAUSE");
  
          return (-1);
  
      }
  
      else
  
      {
  
          reading_sound(argv[1]);
  
          return (0);
  
      }
  
      return (0);
  
  }

• Ffmpeg set output format C++

  7 septembre 2022, par Turgut

  I made a program that encodes a video and I want to specify the format as h264 but I can't figure out how to do it. It automatically sets the format to mpeg4 and I can't change it. I got my code from ffmpegs official examples muxing.c and slightly edited it to fit my code (I haven't changed much especially did not touch the parts where it sets the format)

  


  Here is my code so for (I have trimmed down the code slightly, removing redundant parts)

  


  video_encoder.cpp :

  


  
video_encoder::video_encoder(int w, int h, float fps, unsigned int duration) 
 :width(w), height(h), STREAM_FRAME_RATE(fps), STREAM_DURATION(duration)
{
    std::string as_str = "./output/video.mp4";

    char* filename = const_cast(as_str.c_str());
    enc_inf.video_st, enc_inf.audio_st = (struct OutputStream) { 0 };
    enc_inf.video_st.next_pts = 1; 
    enc_inf.audio_st.next_pts = 1;
    enc_inf.encode_audio, enc_inf.encode_video = 0;
    int ret;
    int i;

    /* allocate the output media context */
    avformat_alloc_output_context2(&enc_inf.oc, NULL, NULL, filename);

    if (!enc_inf.oc) {
        std::cout << "FAILED" << std::endl;
        avformat_alloc_output_context2(&enc_inf.oc, NULL, "mpeg", filename);
    }

    enc_inf.fmt = enc_inf.oc->oformat;

    /* Add the audio and video streams using the default format codecs
     * and initialize the codecs. */
    if (enc_inf.fmt->video_codec != AV_CODEC_ID_NONE) {
        add_stream(&enc_inf.video_st, enc_inf.oc, &video_codec, enc_inf.fmt->video_codec);
        enc_inf.have_video = 1;
        enc_inf.encode_video = 1;
    }
    if (enc_inf.fmt->audio_codec != AV_CODEC_ID_NONE) {
        add_stream(&enc_inf.audio_st, enc_inf.oc, &audio_codec, enc_inf.fmt->audio_codec);
        enc_inf.have_audio = 1;
        enc_inf.encode_audio = 1;
    }

    /* Now that all the parameters are set, we can open the audio and
     * video codecs and allocate the necessary encode buffers. */
    if (enc_inf.have_video)
        open_video(enc_inf.oc, video_codec, &enc_inf.video_st, opt);

    if (enc_inf.have_audio)
        open_audio(enc_inf.oc, audio_codec, &enc_inf.audio_st, opt);
    av_dump_format(enc_inf.oc, 0, filename, 1);

    /* open the output file, if needed */
    if (!(enc_inf.fmt->flags & AVFMT_NOFILE)) {
        ret = avio_open(&enc_inf.oc->pb, filename, AVIO_FLAG_WRITE);
        if (ret < 0) {
            //VI_ERROR("Could not open '%s': %s\n", filename, ret);
            //return 1;
        }
    }

    /* Write the stream header, if any. */
    ret = avformat_write_header(enc_inf.oc, &opt);
    if (ret < 0) {
        VI_ERROR("Error occurred when opening output file:");
        //return 1;
    }
    
    //return 0;
}


/* Add an output stream. */
void video_encoder::add_stream(OutputStream *ost, AVFormatContext *oc,
                       const AVCodec **codec,
                       enum AVCodecID codec_id)
{
    AVCodecContext *c;
    int i;

    /* find the encoder */
    *codec = avcodec_find_encoder(codec_id);
    
    if (!(*codec)) {
        fprintf(stderr, "Could not find encoder for '%s'\n",
                avcodec_get_name(codec_id));
        exit(1);
    }

    ost->tmp_pkt = av_packet_alloc();

    if (!ost->tmp_pkt) {
        fprintf(stderr, "Could not allocate AVPacket\n");
        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;


    switch ((*codec)->type) {
    case AVMEDIA_TYPE_AUDIO:
        ...
        break;
    case AVMEDIA_TYPE_VIDEO:
        c->codec_id = codec_id;

        c->bit_rate = 10000;
        /* Resolution must be a multiple of two. */
        c->width    = width;
        c->height   = 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 = (AVRational){ 1, STREAM_FRAME_RATE }; // *frame_rate
        c->time_base       = ost->st->time_base;

        c->gop_size      = 7; /* emit one intra frame every twelve frames at most */
        //c->codec_id      = AV_CODEC_ID_H264;
        c->pix_fmt       = STREAM_PIX_FMT;
        //if (c->codec_id == AV_CODEC_ID_MPEG2VIDEO) 
        //    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;
        }

        if ((*codec)->pix_fmts){
            //c->pix_fmt = (*codec)->pix_fmts[0];
            std::cout << "NEW FORMAT : " << c->pix_fmt << std::endl;
        }

        break;
    }
     

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


  


  video_encoder.h

  


  
typedef struct OutputStream {
    AVStream *st;
    AVCodecContext *enc;

    /* pts of the next frame that will be generated */
    int64_t next_pts;
    int samples_count;

    AVFrame *frame;
    AVFrame *tmp_frame;

    AVPacket *tmp_pkt;

    float t, tincr, tincr2;

    struct SwsContext *sws_ctx;
    struct SwrContext *swr_ctx;
} OutputStream;

class video_encoder{
    private:
        typedef struct {
            OutputStream video_st, audio_st;
            const AVOutputFormat *fmt;
            AVFormatContext *oc;
            int have_video, have_audio, encode_video, encode_audio;
            std::string name;
        } encode_info;
    public:
        encode_info enc_inf;
        video_encoder(int w, int h, float fps, unsigned int duration);
        ~video_encoder();  
        ...
    private:
        ...
        void add_stream(OutputStream *ost, AVFormatContext *oc,
                       const AVCodec **codec,
                       enum AVCodecID codec_id);


  


  I'm thinking that the example sets the codec at avformat_alloc_output_context2(&enc_inf.oc, NULL, NULL, filename) but I'm not quite sure how to set it to h264.

  


  I've tried something like this avformat_alloc_output_context2(&enc_inf.oc, enc_inf.fmt, "h264", filename)

  


  But it just gives a seg fault. What am I supposed to do ?

  


  Edit : I've tried adding these two lines to video_encoder::video_encoder by deleting avformat_alloc_output_context2(&enc_inf.oc, NULL, NULL, filename); :

  


  
    video_codec = avcodec_find_encoder(AV_CODEC_ID_H264);
    enc_inf.video_st.enc = avcodec_alloc_context3(video_codec);



  


  But it resulted in these errors :
It says this every frame (A bunch of times)

  


  [mpeg @ 0x56057c465480] buffer underflow st=0 bufi=26822 size=31816


  


  Says this once when the frame encoding loop is over :

  


  [mpeg @ 0x5565ac4a04c0] start time for stream 0 is not set in estimate_timings_from_pts
[mpeg @ 0x5565ac4a04c0] stream 0 : no TS found at start of file, duration not set
[mpeg @ 0x5565ac4a04c0] Could not find codec parameters for stream 0 (Video: mpeg2video, none): unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options