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Tutorial: Export to DaVinci and Multicam Edit

INPUT

  1. Camera A
  2. Camera B
  3. Audio Recording: audiofile.m4a

1. Audio Recording

  • Find the slate position (👏/🎬). Trim off all audio before.
  • Export, so that the audio starts with a slate sound.
  • Transcribe it.
  • do srt2tsv -a
  • paper edit
  • do cat roughcut.tsv | sed 's/audiofile/multicam/' | tsv2fcpxml > multicam.fcpxml
    • or: cat roughcut.tsv | tsv2fcpxml --fps=25 --nosrt --offsetonehour > multicam.fcpxml
      • FPS: Make sure your audio/video/tsv2fcpxml use the same FPS setting

2. Import to DaVinci Resolve

  • Import audiofile.m4a

  • Import footage A from SD Card into DaVinci Resolve

  • Import footage B from SD Card

  • Search for slate position in footage A.

    • Press I to set as "In Mark".

  • Do the same to footage B

  • Click on audiofile, footage A and footage B. Right click - "New Multicam Clip"

    • Start Timecode: 01:00:00:00 (thanks to --offsetonehour)
    • Frame Rate: 25 (as specified in tsv2fcpxml.py)
    • Angle Sync: Sound (Or with In Mark)
    • Name: multicam

  • Import multicam.fcpxml

    • Uncheck "Automatically import source clips into media pool"
    • Check only the bin that includes multicam clip. So that it's easier for DaVinci Resolve to select this one

  • Tada! DaVinci Resolve should be using your Multicam Clip named multicam

3. Edit!

  • Cmd-A on timeline

  • Right click, Link

  • Right click, Unlink

  • Select all Audio clips. Menu - Multicam Switch to Angel 1 (The good audio)

  • Lock Audio Track.

  • Select all Video clips. Menu - Multicam Switch to Angel 2/3 (Select one default video)

  • '🔽' key to select next clip

  • 'Option-2' to switch angel

Edit along with Subtitles: I/O Style

  • Import SRT
  • Check off "Selection Follows Playhead"
  • Mark In
  • Mark Out
    • Make sure no clip is selected and In/Out region is highlighted
  • Ripple Delete
  • Boom! Audio, Multicam and Subtitle will be removed all at once

Edit along with Subtitles: Trim Items Start Style

  • Import SRT
  • If the SRT blocks on the right will be covering the left ones (blocks on the right has no gap), just do Cmd-Shift-[. (Trim > Ripple > Start to Playhead)
    • Otherwise, first delete all the SRT blocks you want to remove on the left

REFERENCES

ffmpeg -i CamB.mov -i audiofile.m4a -c:v copy -map 0:v:0 -map 1:a:0 CamB.mp4 
# replace the bad audio in footage with good audio

ffmpeg -i CamB.mov -ss 00:03:34.416 -c copy CamB_.mov

ffmpeg -i 220701-T001.WAV -ac 1 -c copy B.wav
# export mono(Left) from a stereo file

ffmpeg -i 220701-T001.WAV -ac 2 -c copy B.wav

Another style

  1. On footage A: find the slate position, trim off. Replace the audio with the good one.
  2. On footage B: same
  3. cat roughcut.tsv | sed 's/audiofile/CamA' | tsv2fcpxml > CamA.xml
  4. cat roughcut.tsv | sed 's/audiofile/CamB' | tsv2fcpxml > CamB.xml
  5. import each
  6. copy one whole timeline, and paste on top of another
  7. Press D to disable the view angle you don't like.

sample of multicam.fcpxml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE fcpxml>
<fcpxml version="1.8">
    <resources>
        <format id="r0" frameDuration="1001/30000s" name="FFVideoFormat1080p2997" width="1920" height="1080"/>
        <media id="r3" name="wwdc2022-10092 Multicam">
            <multicam tcStart="18018/5s" format="r0" tcFormat="NDF">
                <mc-angle name="Angle 2" angleID="2138e4ea-9aeb-4868-922a-11a9f9d072ec">
                    <asset-clip offset="0/1s" format="r0" ref="r1" enabled="1" start="0/1s" name="wwdc2022-10092.mp4" tcFormat="NDF" duration="60197137/30000s">
                        <adjust-transform position="0 0" anchor="0 0" scale="1 1"/>
                    </asset-clip>
                </mc-angle>
                <mc-angle name="Angle 1" angleID="ed3a0aca-2865-4d64-9f26-6be657578be7">
                    <asset-clip offset="0/1s" format="r0" ref="r2" enabled="1" start="0/1s" name="wwdc2022-10092的副本.mp4" tcFormat="NDF" duration="60197137/30000s">
                        <adjust-transform position="0 0" anchor="0 0" scale="1 1"/>
                    </asset-clip>
                </mc-angle>
            </multicam>
        </media>
        <asset id="r1" format="r0" src="file:///Users/k/CUT/infosec_cherrypick_tsvedl/WWDC_FIDO/wwdc2022-10092.mp4" hasVideo="1" start="0/1s" hasAudio="1" name="wwdc2022-10092.mp4" audioChannels="2" audioSources="1" duration="60197137/30000s"/>
        <asset id="r2" format="r0" src="file:///Users/k/CUT/infosec_cherrypick_tsvedl/WWDC_FIDO/wwdc2022-10092%E7%9A%84%E5%89%AF%E6%9C%AC.mp4" hasVideo="1" start="0/1s" hasAudio="1" name="wwdc2022-10092的副本.mp4" audioChannels="2" audioSources="1" duration="60197137/30000s"/>
    </resources>
    <library>
        <event name="Timeline 1 (Resolve)">
            <project name="Timeline 1 (Resolve)">
                <sequence tcStart="18018/5s" format="r0" tcFormat="NDF" duration="4637633/30000s">
                    <spine>
                        <mc-clip offset="18018/5s" ref="r3" start="126307181/30000s" name="wwdc2022-10092 Multicam" duration="122122/1875s">
                            <mc-source angleID="ed3a0aca-2865-4d64-9f26-6be657578be7" srcEnable="all">
                                <adjust-transform position="0 0" anchor="0 0" scale="1 1"/>
                            </mc-source>
                        </mc-clip>
                        <mc-clip offset="6878872/1875s" ref="r3" start="42753711/10000s" name="wwdc2022-10092 Multicam" duration="2683681/30000s">
                            <mc-source angleID="2138e4ea-9aeb-4868-922a-11a9f9d072ec" srcEnable="all">
                                <adjust-transform position="0 0" anchor="0 0" scale="1 1"/>
                            </mc-source>
                        </mc-clip>
                    </spine>
                </sequence>
            </project>
        </event>
    </library>
</fcpxml>