7a4c28bd86
This includes rewriting out all of the "you" language that was peppered throughout, fixing inconsistencies in layout, and removing <br>s wherever they were misused and unnecessary (which was quite a lot).
116 lines
4.9 KiB
HTML
116 lines
4.9 KiB
HTML
|
|
<h2>Overview of Operations</h2>
|
|
|
|
<dl class="wide-table">
|
|
<dt><kbd class="menu">Session > Open Video</kbd></dt>
|
|
<dd>Add/replace a video to/on the timeline</dd>
|
|
<dt><kbd class="menu">Window > View Monitor</kbd></dt>
|
|
<dd>Open/close external video monitor window</dd>
|
|
<dt><kbd class="menu">View > Video Monitor > …</kbd></dt>
|
|
<dd>Various settings of the video monitor</dd>
|
|
<dt><kbd class="menu">Session > Export > Video</kbd></dt>
|
|
<dd>Export session and multiplex with video-file</dd>
|
|
<dt><kbd class="mouse">Left</kbd>-drag the video in the timeline</dt>
|
|
<dd>Re-align video and move 'locked' audio-regions along</dd>
|
|
<dt>Context-menu on the video-timeline: <kbd class="menu"> 'lock'</kbd></dt>
|
|
<dd>Prevent accidental drags</dd>
|
|
<dt>Audio region context menu: <kbd class="menu">Position > Lock to video</kbd></dt>
|
|
<dd>Mark audio region(s) to be moved along with the video.</dd>
|
|
</dl>
|
|
|
|
|
|
<h2>Adding Video</h2>
|
|
<p>
|
|
Adding video is a two-step process: select a video file, and choose
|
|
import mode and optionally select an audio track to extract.
|
|
</p>
|
|
<p>
|
|
The first step is rather straight-forward. The panel on the right side
|
|
allows to seek through the video and displays basic file information.
|
|
It is also useful to check if the video format/codec is supported:
|
|
</p>
|
|
<img src="/images/a3_video_open.png" alt="video-open-dialog" width="300" />
|
|
<p>
|
|
The second step analyzes the video file in more detail and offers import options:
|
|
</p>
|
|
<dl>
|
|
<dt><kbd class="menu">Import/Transcode to Session</kbd></dt>
|
|
<dd>This is the default. The video will be imported in a suitable
|
|
video format/codec for the timeline and video monitor and saved inside the
|
|
session folder. A location other than the session folder can also be
|
|
chosen (external disk, or network storage of the video server on a different
|
|
machine).</dd>
|
|
<dt><kbd class="menu">Reference from Current Location</kbd></dt>
|
|
<dd>Only useful for opening files that were previously encoded (are already
|
|
in a good format/codec). Use with care.</dd>
|
|
<dt><kbd class="menu">Do not Import Video</kbd></dt>
|
|
<dd>Useful for extracting audio only.</dd>
|
|
</dl>
|
|
|
|
<img src="/images/a3_video_import.png" alt="Video Import Dialog" width="300" />
|
|
|
|
<p>
|
|
By default the video is imported using the original width/height.
|
|
If it is a large video (e.g. full-HD) it makes sense to scale it down
|
|
to decrease the CPU load and disk I/O required to decode and play the
|
|
file.<br>
|
|
A small, low-quality representation of the image is usually sufficient
|
|
for editing soundtracks. The default bitrate in kbit/sec is set to use
|
|
0.7 bits per pixel. (Compare: the average DVD medium uses 5000 kbit/s;
|
|
at PAL resolution this is about 0.5 bits per pixel. But the DVD is
|
|
using the <dfn>mpeg2</dfn>—a denser compression algorithm than the
|
|
<dfn>mjpeg</dfn> codec used by Ardour.)
|
|
</p>
|
|
|
|
<h2>Working with A/V</h2>
|
|
<p>
|
|
Well now,..
|
|
</p>
|
|
<img src="/images/a3_videotimeline.png" alt="Video Timeline" width="600" />
|
|
|
|
<h2 id="export">Exporting Video</h2>
|
|
<p>
|
|
The video export will take audio from the current Ardour session and
|
|
multiplex it with a video file. The soundtrack of the video is taken from
|
|
an audio export of Ardour's master bus.
|
|
</p>
|
|
<p>
|
|
An arbitrary video file can be chosen. For high quality exports, the
|
|
original file (before it was imported into the timeline) should be used.
|
|
This is the default behaviour if that file can be found. If not, Ardour
|
|
will fall back to the imported proxy-video which is currently in use
|
|
on the timeline. Any existing audio tracks on this video file are stripped.
|
|
</p>
|
|
<p>
|
|
The range selection allows to cut or extend the video. If the session is
|
|
longer than the video duration, black frames are prefixed or appended to
|
|
the video. (Note: this process may fail with non-standard pixel aspect
|
|
ratios). If Ardour's session range is shorter, the video will be cut accordingly.
|
|
</p>
|
|
|
|
<p>
|
|
Audio samplerate and normalization are options for Ardour's audio exporter.
|
|
The remaining settings are options that are directly passed on to ffmpeg.
|
|
</p>
|
|
|
|
<p>
|
|
The file format is determined by the extension that you choose for it
|
|
(.avi, .mov, .flv, .ogv, .webm,…)
|
|
Note: not all combinations of format, codec, and settings produce files
|
|
which are according to specifications. For example, flv files require
|
|
sample rates of 22.1 kHz or 44.1 kHz, mpeg containers can not
|
|
be used with ac3 audio-codec, etc. If in doubt, use one of the built-in
|
|
presets.
|
|
</p>
|
|
|
|
<img src="/images/a3_video_export.png" alt="Video Export Dialog" width="300" />
|
|
|
|
<p>
|
|
Ardour video export is not recommended for mastering! While ffmpeg
|
|
(which is used by Ardour) can produce high-quality files, this export
|
|
lacks the possibility to tweak many settings. We recommend to use winff,
|
|
devede or dvdauthor to mux & master. Nevertheless this video-export c
|
|
omes in handy to do quick snapshots, intermediates, dailies or online videos.
|
|
</p>
|
|
|