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• How to upload 7MB GIF to Twitter's API

  22 février 2021, par randombits

  I have a bunch of JPEG frames that I use ImageMagick to stitch together into a GIF. The final product has the following type :

  


  GIF image data, version 89a, 1280 x 720

  


  This gives the effect of an animated GIF. My file sizes range anywhere between 6-8MB.

  


  If I upload this media manually to Twitter, it works great. Using TwitterOAuth PHP library found here when I attempt the following :

  


  $media = $twitterConnection->upload('media/upload', ['media' => 'my_file.gif');

  


  I get the following error :

  


  Image file size must be <= 5242880 bytes

  


  I have also tried uploading the file using Twitter's recommended Python large video library and that failed with the following :

  


  INIT
Media ID: 1362940800456351744
APPEND
4194304 of 7685061 bytes uploaded
APPEND
7685061 of 7685061 bytes uploaded
Upload chunks complete.
FINALIZE
{'media_id': 1362940800456351744, 'media_id_string': '1362940800456351744', 'media_key': '7_1362940800456351744', 'size': 7685061, 'expires_after_secs': 86400, 'processing_info': {'state': 'pending', 'check_after_secs': 1}}
Media processing status is pending
Checking after 1 seconds
STATUS
Media processing status is failed


  


  I am willing to use any platform/utility to get my video files uploaded to Twitter. What is my best bet to either :

  


  1 : Fix my file type to adhere to Twitter's requirements. Should it not be a GIF ? Should I be converting my still shot JPEG files to another format ?

  


  2 : Is there an API that Twitter has available that will allow the GIFs of these sizes to be uploaded ? Again, I can upload these files via the regular Twitter web UI client, but I cannot automate it via their API.

  


  How do I upload my GIF to Twitter using their API ?

  


• When I run code in Docker I get a Django error [Errno 2]. When running locally everything works. Why ?

  8 février 2021, par Bartłomiej Kokoszka

  I don't know what's going on. A script run by Django works fine, but not through Docker and Django. An error is returned :

  


  Pic Errno 2 No such file or directory

  


  Below is the code of the function with the error and the code of the Dockerfile.

  


  '''

  


  def mediainfo(filepath):
    


  


  Original code :

  


  


      prober = get_prober_name()
    command_args = [
        "-v", "quiet",
        "-show_format",
        "-show_streams",
        filepath
    ]

    command = [prober, '-of', 'old'] + command_args


  


  


  Modified code :

  


  


      command = f"ffprobe -v error -show_format -show_streams -select_streams v:0 {filepath}"


  


  


  The rest of the functions :

  


      res = Popen(command, stdout=PIPE)&#xA;    output = res.communicate()[0].decode("utf-8")&#xA;&#xA;    if res.returncode != 0:&#xA;        output = Popen(command, stdout=PIPE).communicate()[0].decode("utf-8")&#xA;&#xA;    rgx = re.compile(r"(?:(?P.*?):)?(?P<key>.*?)\=(?P<value>.*?)$")&#xA;    info = {}&#xA;&#xA;    if sys.platform == &#x27;win32&#x27;:&#xA;        output = output.replace("\r", "")&#xA;&#xA;    for line in output.split("\n"):&#xA;        # print(line)&#xA;        mobj = rgx.match(line)&#xA;&#xA;        if mobj:&#xA;            # print(mobj.groups())&#xA;            inner_dict, key, value = mobj.groups()&#xA;&#xA;            if inner_dict:&#xA;                try:&#xA;                    info[inner_dict]&#xA;                except KeyError:&#xA;                    info[inner_dict] = {}&#xA;                info[inner_dict][key] = value&#xA;            else:&#xA;                info[key] = value&#xA;&#xA;    return info&#xA;</value></key>

  


  '''

  


  Code of the Dockerfile

  


  '''

  


  FROM python:3.7 as base

EXPOSE 80

WORKDIR /app
COPY . /app


ENV PYTHONDONTWRITEBYTECODE=1

ENV PYTHONUNBUFFERED=1

RUN pip install --upgrade pip
RUN echo 'deb http://deb.debian.org/debian buster-backports main contrib non-free' >> /etc/apt/sources.list
RUN apt-get update

RUN apt-get -y install ffmpeg
RUN apt-get update

COPY requirements.txt .
RUN python -m pip install -r requirements.txt

FROM base as prod

ENTRYPOINT ["python","manage.py","runserver","0.0.0.0:80"]


  


  '''

  


• FFMPEG add text frames to the start of video

  22 janvier 2021, par Ryan

  I have some videos either in mp4 or webm format, and I'd like to use ffmpeg to add 4 seconds to the start of each video to display some text in the center with no sound.

  



  Some other requirements :

  



  

  • try to avoid re-encoding the video

  


  • need to maintain the quality (resolution, bitrate, etc)

  


  • (optional) to make the text fade in/out

  


  



  I am new to ffmpeg and any help will be appreciated.

  



  thanks in advance

  



  Example ffprobe information for mp4 below :

  



  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
  Metadata:
    major_brand : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf55.33.100
  Duration: 00:00:03.84, start: 0.042667, bitrate: 1117 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 1021 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
Metadata:
  handler_name    : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 140 kb/s (default)
Metadata:
  handler_name    : SoundHandler


  



  Example webm

  



  Input #0, matroska,webm, from 'input.webm':
  Metadata:
  encoder         : Lavf55.33.100
 Duration: 00:00:03.80, start: 0.000000, bitrate: 1060 kb/s
   Stream #0:0(eng): Video: vp8, yuv420p, 1280x720, SAR 1:1 DAR 16:9, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
   Stream #0:1(eng): Audio: vorbis, 48000 Hz, stereo, fltp (default)


  



  Screenshot from joined.mp4

  



  Screenshot for step 3 console