Recherche avancée

Sur d’autres sites (12323)

• GStreamer pipeline should automatically switch back to the live stream

  16 janvier, par AD Thumar

  I am using below list of version.

  


  


  Gstreamer-1.24.10, windows 10.

  


  


  I’m working on a GStreamer pipeline to handle RTSP camera streams. When the RTSP camera goes offline, I want to display a image or black screen instead of stopping the pipeline. Once the RTSP stream is back online, the pipeline should automatically switch back to the live stream.

  


  Below pipeline work but rtsp server not response that time 3 camera stop (After 19 seconds...) but 1 camera not ping that's not fulfill my requirements(My requirement is not stoping live view)

  


  I have already tried pipeline belowed :

  


  gst-launch-1.0 compositor name=comp sink_0::xpos=0 sink_0::ypos=0 sink_1::xpos=240 sink_1::ypos=0 sink_2::xpos=480 sink_2::ypos=0 ! videoconvert ! autovideosink sync=false rtspsrc location=rtspt://USERNAME:PASSWORD@IP:PORT/Streaming/Channels/101 ! rtph265depay ! avdec_h265 ! videoconvert ! videoscale ! video/x-raw,width=640,height=360 ! comp. rtspsrc location=rtspt://USERNAME:PASSWORD@IP:PORT/Streaming/Channels/101 ! rtph265depay ! avdec_h265 ! videoconvert ! videoscale ! video/x-raw,width=640,height=360 ! comp. rtspsrc location=rtspt://USERNAME:PASSWORD@IP:PORT/Streaming/Channels/101 ! rtph265depay ! avdec_h265 ! videoconvert ! videoscale ! video/x-raw,width=640,height=360 ! comp.

  


  Can you please let me know.How to deal with this issue ??

  


• How to Record a Seekable Video File with Lossless Compression which is seekable while recording ? [closed]

  21 novembre 2024, par Christian Schaffner

  I am using FFmpeg to record a dshow device to a .mkv file. My goal is to use a lossless codec like H.264 or FFV1 for the best quality. Here’s the issue I’m encountering :

  


  In my application, the recorded file needs to be played in another application while recording is still in progress. While playback works, the file is not seekable because the index is written only after the recording ends.

  


  My question :
  
Is there any way to record a video that remains seekable, even if the recording process is incomplete ? I am open to low-filesize, uncompressed formats or other practical solutions that meet these requirements.

  


  Here’s my current FFmpeg command :

  


  ffmpeg -f dshow -i video="Your Video Device" -c:v libx264 -preset ultrafast -crf 0 output.mkv

  


  I've also tried FFV1 as the codec, but the seekability issue persists :

  


  ffmpeg -f dshow -i video="Your Video Device" -c:v ffv1 output.mkv

  


  Things I’ve Tried :

  


  

  1. Using the -movflags +faststart option (applicable to MP4, but not for MKV).

  


  2. Switching container formats to see if other containers might write the index during recording (e.g., AVI or MP4).

  


  3. Exploring streaming protocols (e.g., udp or rtmp) for playback but found these unsuitable for my use case.

  


  


  Requirements :

  


  

  • Lossless video quality (e.g., H.264 lossless or FFV1).

  


  • Seekable playback during recording.

  


  


  Examples

  


  

  1. How to record a seekable H.264 lossless video while still recording ?

  


  2. Can FFV1 (or similar codecs) support live seekable playback during recording ?

  


  


  Does FFmpeg or any container format have a feature or flag that could solve this problem ? Or are there alternative workflows or tools that can help ? Any help or suggestions would be appreciated !

  


  EDIT :
The Reading application uses PyAV which intern uses FFMEG.

  


• How to Record a Seekable Video File with Lossless Compression wich is seekable while recording ?

  21 novembre 2024, par Christian Schaffner

  I am using FFmpeg to record a dshow device to a .mkv file. My goal is to use a lossless codec like H.264 or FFV1 for the best quality. Here’s the issue I’m encountering :

  


  In my application, the recorded file needs to be played in another application while recording is still in progress. While playback works, the file is not seekable because the index is written only after the recording ends.

  


  My question :
  
Is there any way to record a video that remains seekable, even if the recording process is incomplete ? I am open to low-filesize, uncompressed formats or other practical solutions that meet these requirements.

  


  Here’s my current FFmpeg command :

  


  ffmpeg -f dshow -i video="Your Video Device" -c:v libx264 -preset ultrafast -crf 0 output.mkv

  


  I've also tried FFV1 as the codec, but the seekability issue persists :

  


  ffmpeg -f dshow -i video="Your Video Device" -c:v ffv1 output.mkv

  


  Things I’ve Tried :

  


  

  1. Using the -movflags +faststart option (applicable to MP4, but not for MKV).

  


  2. Switching container formats to see if other containers might write the index during recording (e.g., AVI or MP4).

  


  3. Exploring streaming protocols (e.g., udp or rtmp) for playback but found these unsuitable for my use case.

  


  


  Requirements :

  


  

  • Lossless video quality (e.g., H.264 lossless or FFV1).

  


  • Seekable playback during recording.

  


  


  Examples

  


  

  1. How to record a seekable H.264 lossless video while still recording ?

  


  2. Can FFV1 (or similar codecs) support live seekable playback during recording ?

  


  


  Does FFmpeg or any container format have a feature or flag that could solve this problem ? Or are there alternative workflows or tools that can help ? Any help or suggestions would be appreciated !

  


  EDIT :
The Reading aplication uses PyAV wich intern uses FFMEG.