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Is it Not mandatory? - ImageCodecCompleteFrame -

Subject: Is it Not mandatory? - ImageCodecCompleteFrame -
From: Takashi Mochizuki <email@hidden>
Date: Sat, 21 Jun 2008 09:54:37 +0900
Delivered-to: email@hidden
Delivered-to: email@hidden

Hi all,

I have found QuickTime 's compressor behavior changed on exporting:

When using QuickTime Player's export - Movie to QuickTime Movie,

- multipass encoding

- at first pass only

It does not call ImageCodecCompleteFrame of video compressor component, before ImageCodecEndPass().

my compressor component is called in following order: (at first pass stage)

- ImageCodecPrepareToCompressFrames

- ImageCodecProcessBetweenPasses

- ImageCodecBeginPass

- ImageCodecEncodeFrame()

- :

- ImageCodecEncodeFrame()

- ImageCodecEndPass

At final pass, QT calls ImageCodecCompleteFrame once before ImageCodecEndPass.

Is it unnecessary to call CompleteFrame()?

I am not sure when this change has occured. From QT7.5.0?

Takashi Mochizuki

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