bytedeco/javacv

Filter frame timestamp starts from 0 when dynamically changing the filter

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#1,950 opened on Dec 2, 2022

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Description

  1. I want to modify the filter dynamically. I find that the timestamp of the filter frame starts from 0 through the log;
  2. In addition, if a new rtmp input stream is dynamically added, the timestamp of this new input stream will also start from 0; What should I do to ensure that the timestamps of all frames are close to one second? Are there examples to provide ideas? thank you

Contributor guide

Research direction
Investigate how to set the output timestamp offset in FFmpeg filter graphs, or consider using the 'setpts' filter to adjust timestamps. Look at examples of dynamic filter changes and RTMP input streams in JavaCV documentation.
Tech stack
java
Domain
backend
Issue type
Research
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
JavaFFmpeg concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60