Answers.Body: <p>As the <a href="https://ffmpeg.org/ffmpeg-devices.html#decklink-1" rel="nofollow">docs</a> say,</p>
  
  <blockquote>
    <p>you need the Blackmagic DeckLink SDK and you need to configure with
    the appropriate --extra-cflags and --extra-ldflags. On Windows, you
    need to run the IDL files through widl</p>
  </blockquote>
  
  <p>If so, run</p>
  
  <pre><code>ffmpeg -re -i rtmp://server/live/streamname -c:v rawvideo -pix_fmt uyvy422 -vf scale=720x576 -c:a pcm_s16le -ar 48000 -ac 2 -f decklink "Device"
  </code></pre>
  
  <p>where <code>Device</code> is to replaced with the name of 'Decklink Studio 4K' as indicated by <code>ffmpeg -f lavfi -i nullsrc -f decklink -list_devices 1 dummy</code></p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-09-23T11:21:25.300Z
Answers.LastActivityDate: 2016-09-23T11:21:25.300Z
Answers.UserDisplayName: Gyan
Body: <p>ffmpeg -re -i rtmp://server/live/streamname \
  -c:v rawvideo -pix_fmt uyvy422 -vf scale=720x576 \
  -c:a pcm_s16le -ar 48000 -ac 2 \
  -f nut - | /bmd/bmdplay -C 0 -m 2 -f pipe:0</p>
  
  <p><strong>Kindly share the exact command to take this rtmp stream to Decklink Studio 4K card(SDI).</strong></p>
  
Tags: <ffmpeg><rtmp><sdi><sd-card><blackmagic>
Title: How do I playout rtmp stream to SDI (Decklink Studio 4K) using FFMPEG command?we are using Windows 7 operating system
UserDisplayName: Kishore Karmakar
ThreadText: # How do I playout rtmp stream to SDI (Decklink Studio 4K) using FFMPEG command?we are using Windows 7 operating system
  
  (Asked by: username_0 on 2016-09-23)
  
  ffmpeg -re -i rtmp://server/live/streamname \
  -c:v rawvideo -pix\_fmt uyvy422 -vf scale=720x576 \
  -c:a pcm\_s16le -ar 48000 -ac 2 \
  -f nut - | /bmd/bmdplay -C 0 -m 2 -f pipe:0
  
  **Kindly share the exact command to take this rtmp stream to Decklink Studio 4K card(SDI).**
  
  **Tags:** ffmpeg, rtmp, sdi, sd-card, blackmagic
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2016-09-23. Score: 1
  
  As the [docs](https://ffmpeg.org/ffmpeg-devices.html#decklink-1) say,
  
  > you need the Blackmagic DeckLink SDK and you need to configure with
  > the appropriate --extra-cflags and --extra-ldflags. On Windows, you
  > need to run the IDL files through widl
  
  If so, run
  
  ```
  ffmpeg -re -i rtmp://server/live/streamname -c:v rawvideo -pix_fmt uyvy422 -vf scale=720x576 -c:a pcm_s16le -ar 48000 -ac 2 -f decklink "Device"
  
  ```
  
  where `Device` is to replaced with the name of 'Decklink Studio 4K' as indicated by `ffmpeg -f lavfi -i nullsrc -f decklink -list_devices 1 dummy`
  
  
  ---
  
  