bytedeco/javacv

Help: Output of a valid XDCAM HD422

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#966 opened on Apr 18, 2018

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 (7 comments) (0 reactions) (0 assignees)Java (1,583 forks)batch import
enhancementhelp wanted

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Description

Hello, I want to ouput a valid MXF in the XDCAM HD422 format. I already got it to ouput the MXF with the video and MediaInfo recognizes that its a XDCAM HD422 but its not fully valid so I can't import it into Vegas Pro. When I set the flag "ilme" it is interlaced as intended but bottom first. It needs to be top first. But when I set parameter "top" to 1 it gets ignored. When I try this with a standalone version of FFMPEG it works. The next problem would be that a valid XDCAM HD422 need to audio tracks. How can I achieve this?

Here the questions in short:

  1. How can I set the field order of the video interlacing to "top field first"?
  2. How can I add those 2 audio tracks with JavaCV?

Thanks in advance.

Valid XDCAM HD422 encoded with Adobe Media Encoder: image

My current output (Don't wonder about the differentz file size. It's not the same source.): image

Contributor guide

Research direction
Investigate how to set FFmpeg codec options for interlacing field order (top field first) and add multiple audio streams using JavaCV's FFmpegFrameRecorder. Check FFmpeg documentation for XDCAM HD422 and how to pass options via avcodec open.
Tech stack
java
Domain
backend
Issue type
Documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
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.
Stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Java
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75