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• FFMPEG zoompan filter cut short my video and slowed it down [on hold]

  9 décembre 2018, par Ewan Sou

  I am using FFMPEG (version 4.0.2) to zoompan my video. My code is as below

  ffmpeg -y -i input.mp4 -loop 1 -i overlay.png -ss 0 -t 10 -filter_complex "[0:v]scale=iw+iw:ih+ih, zoompan=z='if(lte(pzoom,1.0),1.6,max(1.001,pzoom-0.004))':d=1:x='iw/2-(iw/zoom/2)':y='0':s=720x720, setsar=1 [v0];[1:v]crop=720:720,fade=t=in:st=0:d=1,fade=t=out:st=3:d=1[v1];[v0][v1] overlay [v]" -map "[v]" -f mp4 -preset ultrafast -y output.mp4

  Essentially, what this code should do is slowly pan out from the center of my video, with a logo (overlay.png) fading in and out.

  This input.mp4 is 10 seconds. With the above code, the final video duration is 10 seconds still. But its not the full footage, it is cut short and compensated with slow motion to make it 10 seconds still...

  I need the final video to not be cut off at all. It should be the full footage and no slow motion effect.

  Anyone has any ideas what I am doing wrong ?

  Input video is at : https://instantly.sg/photobooth/input.mp4

  Overlay is at : here

  Thanks in advance !

• How do I convert RTSP stream for iOS browser viewing

  27 juin 2018, par humble_coder

  TL ;DR

  I need to convert full RTSP (A/V) stream from Axis IP cameras to be viewed in a fully-contained/not-full-screen div in an iOS browser. Think : "Youtube live stream as viewed from iOS browser". I’ve seen several links that hint at the issue. . .

  • Streaming via RTSP or RTP in HTML5
  • RTSP tunneled HTTP, FFMPEG
  • How can I display an RTSP video stream in a web page ?
  • Embed RTSP Stream into Browser

  . . .but they’re either "incomplete" or out of date.

  The solution must be local and remain behind site firewall (so no external services).

  MORE DETAIL

  I’m currently writing a custom "Axis IP Camera Manager" Vue/Laravel web app for a client. The initial requirements were very simple :

  1. scan network for axis devices and store addresses/info for future use

  2. display grid of MJPEG for selected camera(s).

  The initial requirements were fairly straightforward. Now, though, there are additional requirements :

  3. Record RTSP stream to [seconds] long MP4 streams.

  4. Convert an RTSP stream from AXIS IP CAMERA to something viewable in both desktop and mobile browsers with full A/V.

  I’ve successfully managed #3 by using ffmpeg to capture and store the stream to MP4. However, I’m no video aficionado, and the nature of #4 is still a bit fuzzy to me. Per my understanding I can’t watch RTSP streams in a browser in iOS, but I also can’t stream an "in-process" MP4 over HTTP. I’ve seen references to several items such as Red5, Live555, Wowza, ffserver (discontinued ?), etc. but I’m completely unfamiliar with them. In the short term, I’m looking for a quick "live" conversion solution. In the long term, I’m interested in a deeper understanding of the issue(s) at hand. Any current info/expertise/links/manuals would be appreciated.

• Ruby on Rails - Paperclip - ffmpeg - throws error when adding style to "has_attached_file"

  4 octobre 2018, par TamerB

  I’m working on image and video upload in a rails app using paperclip and ffmpeg.

  The following code in models/image.rb is working fine :

  has_attached_file :image,
  
  processors: [:ffmpeg]
  
  validates_attachment_content_type :image, content_type: /.*/

  But, when I add styling to the code as follows, it throws an error on (page loading) :

  has_attached_file :image, styles: lambda {|a| if a.instance.is_image? then {original: {}, medium: "300x300>"} end},
  
  processors: [:ffmpeg]
  
  validates_attachment_content_type :image, content_type: /.*/
  
  
  
  def is_image?
  
    return false unless @attachment_image.content_type
  
    ['image/jpeg', 'image/pjpeg', 'image/gif', 'image/png', 'image/x-png', 'image/jpg'].include?(@attachment_image.content_type)
  
  end

  The error is as follows :

  F, [2018-10-04T15:04:47.381706 #9836] FATAL -- : [643e7428-d41e-4000-9a48-566d85e7b109]   
  
  F, [2018-10-04T15:04:47.381906 #9836] FATAL -- : [643e7428-d41e-4000-9a48-566d85e7b109] ActionView::Template::Error (undefined method `each_pair' for nil:NilClass):
  
  F, [2018-10-04T15:04:47.382186 #9836] FATAL -- : [643e7428-d41e-4000-9a48-566d85e7b109]     1: insert_tag renderer_for(:show)
  
  F, [2018-10-04T15:04:47.382345 #9836] FATAL -- : [643e7428-d41e-4000-9a48-566d85e7b109]   
  
  F, [2018-10-04T15:04:47.382441 #9836] FATAL -- : [643e7428-d41e-4000-9a48-566d85e7b109] app/admin/resorts.rb:46:in `block (5 levels) in <top>'
  
  </top>

  How can I solve this ?

  Update

  This error is displayed only when trying to upload a video or or trying to load a page containing a video.

  The code in pp/admin/resorts.rb mentioned in the error message is the following (I’m using activeadmin gem) :

  if im.itype == 'video-slider' then
  
      video_tag im.image, class: 'my_image_size' # line 46
  
  else
  
      image_tag im.image, class: 'my_image_size'
  
  end

  When trying to upload an image, the error changed to be as follows () :

  Input #0, image2, from '/tmp/dcdc7c452102ec2b9255973f59b40ee320181004-23173-fx7vzi.jpg':
  
  Duration: 00:00:00.04, start: 0.000000, bitrate: 35614 kb/s
  
  Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080, 25 tbr, 25 tbn, 25 tbc
  
  [NULL @ 0x564aeb7df580] Unable to find a suitable output format for '/tmp/dcdc7c452102ec2b9255973f59b40ee320181004-23173-fx7vzi20181004-23173-zurkvx'
  
  /tmp/dcdc7c452102ec2b9255973f59b40ee320181004-23173-fx7vzi20181004-23173-zurkvx: Invalid argument
  
  ):
  
  F, [2018-10-04T19:13:02.028565 #23173] FATAL -- : [c267e57b-7e06-4624-be1c-0d9aa4b71e00]   
  
  F, [2018-10-04T19:13:02.028730 #23173] FATAL -- : [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip-ffmpeg (1.2.0) lib/paperclip_processors/ffmpeg.rb:175:in `rescue in make'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip-ffmpeg (1.2.0) lib/paperclip_processors/ffmpeg.rb:171:in `make'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/processor.rb:34:in `make'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/attachment.rb:533:in `block in post_process_style'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/attachment.rb:532:in `each'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/attachment.rb:532:in `reduce'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/attachment.rb:532:in `post_process_style'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/attachment.rb:519:in `post_process_styles'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/attachment.rb:512:in `block (2 levels) in post_process'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activesupport (5.1.5) lib/active_support/callbacks.rb:131:in `run_callbacks'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/callbacks.rb:38:in `run_paperclip_callbacks'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/attachment.rb:510:in `block in post_process'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activesupport (5.1.5) lib/active_support/callbacks.rb:97:in `run_callbacks'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/callbacks.rb:38:in `run_paperclip_callbacks'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/attachment.rb:509:in `post_process'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/attachment.rb:465:in `post_process_file'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/attachment.rb:113:in `assign'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] paperclip (5.2.1) lib/paperclip/has_attached_file.rb:66:in `block in define_setter'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activemodel (5.1.5) lib/active_model/attribute_assignment.rb:46:in `public_send'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activemodel (5.1.5) lib/active_model/attribute_assignment.rb:46:in `_assign_attribute'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activemodel (5.1.5) lib/active_model/attribute_assignment.rb:40:in `block in _assign_attributes'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activemodel (5.1.5) lib/active_model/attribute_assignment.rb:39:in `each'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activemodel (5.1.5) lib/active_model/attribute_assignment.rb:39:in `_assign_attributes'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activerecord (5.1.5) lib/active_record/attribute_assignment.rb:26:in `_assign_attributes'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activemodel (5.1.5) lib/active_model/attribute_assignment.rb:33:in `assign_attributes'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activerecord (5.1.5) lib/active_record/core.rb:337:in `initialize'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activerecord (5.1.5) lib/active_record/inheritance.rb:66:in `new'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activerecord (5.1.5) lib/active_record/inheritance.rb:66:in `new'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activeadmin (1.1.0) lib/active_admin/resource_controller/data_access.rb:130:in `build_new_resource'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activeadmin (1.1.0) lib/active_admin/resource_controller/data_access.rb:116:in `build_resource'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] inherited_resources (1.8.0) lib/inherited_resources/actions.rb:31:in `create'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_controller/metal/basic_implicit_render.rb:4:in `send_action'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/abstract_controller/base.rb:186:in `process_action'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_controller/metal/rendering.rb:30:in `process_action'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activesupport (5.1.5) lib/active_support/callbacks.rb:131:in `run_callbacks'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/abstract_controller/callbacks.rb:19:in `process_action'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_controller/metal/rescue.rb:20:in `process_action'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activesupport (5.1.5) lib/active_support/notifications.rb:166:in `block in instrument'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activesupport (5.1.5) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activesupport (5.1.5) lib/active_support/notifications.rb:166:in `instrument'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_controller/metal/params_wrapper.rb:252:in `process_action'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] searchkick (3.0.0) lib/searchkick/logging.rb:209:in `process_action'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activerecord (5.1.5) lib/active_record/railties/controller_runtime.rb:22:in `process_action'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/abstract_controller/base.rb:124:in `process'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionview (5.1.5) lib/action_view/rendering.rb:30:in `process'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_controller/metal.rb:189:in `dispatch'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_controller/metal.rb:253:in `dispatch'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/routing/route_set.rb:49:in `dispatch'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/routing/route_set.rb:31:in `serve'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/journey/router.rb:50:in `block in serve'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/journey/router.rb:33:in `each'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/journey/router.rb:33:in `serve'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/routing/route_set.rb:844:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] omniauth (1.8.1) lib/omniauth/strategy.rb:190:in `call!'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] omniauth (1.8.1) lib/omniauth/strategy.rb:168:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] omniauth (1.8.1) lib/omniauth/strategy.rb:190:in `call!'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] omniauth (1.8.1) lib/omniauth/strategy.rb:168:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] omniauth (1.8.1) lib/omniauth/strategy.rb:190:in `call!'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] omniauth (1.8.1) lib/omniauth/strategy.rb:168:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] warden (1.2.7) lib/warden/manager.rb:36:in `block in call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] warden (1.2.7) lib/warden/manager.rb:35:in `catch'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] warden (1.2.7) lib/warden/manager.rb:35:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] rack (2.0.5) lib/rack/etag.rb:25:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] rack (2.0.5) lib/rack/conditional_get.rb:38:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] rack (2.0.5) lib/rack/head.rb:12:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] rack (2.0.5) lib/rack/session/abstract/id.rb:232:in `context'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] rack (2.0.5) lib/rack/session/abstract/id.rb:226:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/middleware/cookies.rb:613:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activerecord (5.1.5) lib/active_record/migration.rb:556:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/middleware/callbacks.rb:26:in `block in call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activesupport (5.1.5) lib/active_support/callbacks.rb:97:in `run_callbacks'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/middleware/callbacks.rb:24:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/middleware/debug_exceptions.rb:59:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] web-console (3.5.1) lib/web_console/middleware.rb:135:in `call_app'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] web-console (3.5.1) lib/web_console/middleware.rb:28:in `block in call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] web-console (3.5.1) lib/web_console/middleware.rb:18:in `catch'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] web-console (3.5.1) lib/web_console/middleware.rb:18:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] railties (5.1.5) lib/rails/rack/logger.rb:36:in `call_app'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] railties (5.1.5) lib/rails/rack/logger.rb:24:in `block in call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activesupport (5.1.5) lib/active_support/tagged_logging.rb:69:in `block in tagged'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activesupport (5.1.5) lib/active_support/tagged_logging.rb:26:in `tagged'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activesupport (5.1.5) lib/active_support/tagged_logging.rb:69:in `tagged'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] railties (5.1.5) lib/rails/rack/logger.rb:24:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] sprockets-rails (3.2.1) lib/sprockets/rails/quiet_assets.rb:13:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/middleware/remote_ip.rb:79:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] request_store (1.4.0) lib/request_store/middleware.rb:19:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/middleware/request_id.rb:25:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] rack (2.0.5) lib/rack/method_override.rb:22:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] rack (2.0.5) lib/rack/runtime.rb:22:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] activesupport (5.1.5) lib/active_support/cache/strategy/local_cache_middleware.rb:27:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/middleware/executor.rb:12:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] actionpack (5.1.5) lib/action_dispatch/middleware/static.rb:125:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] rack (2.0.5) lib/rack/sendfile.rb:111:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] railties (5.1.5) lib/rails/engine.rb:522:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] puma (3.11.2) lib/puma/configuration.rb:225:in `call'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] puma (3.11.2) lib/puma/server.rb:624:in `handle_request'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] puma (3.11.2) lib/puma/server.rb:438:in `process_client'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] puma (3.11.2) lib/puma/server.rb:302:in `block in run'
  
  [c267e57b-7e06-4624-be1c-0d9aa4b71e00] puma (3.11.2) lib/puma/thread_pool.rb:120:in `block in spawn_thread'