From b386ec9a704966da7db41c2a1db1d9d4d20fe0ed Mon Sep 17 00:00:00 2001
From: =?utf8?q?J=C3=B6rn=20Nettingsmeier?=
-The integration of a video timeline and video monitoring into Ardour 3.2 allows for convenient audio mixing and editing to video ie soundtracks, music videos, TV post production etc.
+ Ardour offers a video timeline and video monitoring
+ for convenient audio mixing and editing to video, in order to produce
+ film soundtracks and music videos, or perform TV postproduction tasks.
-Ardour 3.2 (and later) facilities to:
+ The video capabilities are:
-Furthermore, the setup is modular and can be configured in different ways, including:
+ The setup of the video subsystem is modular and can be configured
+ in different ways, including:
-Ardour does not :
+ Ardour does not:
-No configuration is required if you intend to run everything on a single machine, and if you acquired Ardour from http://www.ardour.org, everything is pre-configured and included with the download/install.
+ No configuration is required if you intend to run everything on a single
+ machine, and if you acquired Ardour from
+ http://www.ardour.org.
+ Everything is pre-configured and included with the download/install.
-If you compile Ardour from source, or have installed it from a 3rd party repository, additional tools will need to be installed manually.
-
-There are three separate standalone tools which are used by Ardour to provide video features.
-Introduction
-
-
-
{% children %}
diff --git a/_manual/23_video-timeline/01_setup.html b/_manual/23_video-timeline/01_setup.html
index 6fdee82..86d6087 100644
--- a/_manual/23_video-timeline/01_setup.html
+++ b/_manual/23_video-timeline/01_setup.html
@@ -4,82 +4,82 @@ title: Video Timeline Setup
---
Single Machine
-
-
-
-Ardour requires xjadeo ≥ version 0.6.4, harvid ≥ version 0.7.0 and ffmpeg = 1.2. + Ardour requires xjadeo ≥ version 0.6.4, harvid ≥ version 0.7.0 and ffmpeg = 1.2.
-The Ardour development team is in control of the first two applications. ffmpeg can be a bit of a problem.
-To avoid conflicts with distribution packages, Ardour looks for ffmpeg_harvid
and ffprobe_harvid
.
+ The Ardour development team is in control of the first two applications. ffmpeg
+ however can be a bit of a problem. To avoid conflicts with distribution packages,
+ Ardour looks for ffmpeg_harvid
and ffprobe_harvid
.
-All four applications need to be found in $PATH
(e.g. $HOME/bin
or /usr/local/bin
). For convenience the binary releases of harvid include ffmpeg_harvid and ffprobe_harvid, but if your distribution provides suitable ffmpeg commands you can also just create a symbolic link from ffmpeg â ffmpeg_harvid and ffprobe â ffprobe_harvid.
+ All four applications need to be found in $PATH
(e.g.
+ $HOME/bin
or /usr/local/bin
). For convenience the
+ binary releases of harvid include ffmpeg_harvid and ffprobe_harvid, but if
+ your distribution provides suitable ffmpeg commands you can also just create
+ symbolic links:
-Binary releases are available from ardour.org as well as an installer script: install_video_tools.sh. + Binary releases are available from ardour.org as well as an installer script: + install_video_tools.sh.
--The easiest way to install the video-utilities is by running the following line in a terminal: + The easiest way to install the video-utilities is by running the following + line in a terminal:
-sh -c "$(curl -s -L http://git.io/tVUCkw)"- +sh -c "$(curl -s -L http://git.io/tVUCkw)"
-Please read the info in the previous section to familiarize yourself with the tools involved first. -Setting up a proper A/V post-production studio can be a complicated task. As much as we streamline and simply the single machine setup, the studio-setup is focused on modularity. + Please read the info in the previous section to familiarize yourself with + the tools involved first. Setting up a proper A/V post-production studio + can be a complicated task. As much as we streamline and simplify the + single machine setup, the studio setup is focused on modularity.
--TODO -
+XJREMOTE
(environment variable, default 'xjremote' which comes with xjadeo).
+
-A short primer on video-files, formats and codecs â because it is often cause for confusion: + This chapter provides a short primer on video files, formats and + codecs â because it is often cause for confusion:
-A video file is a container. It usually contains one video-track and one or more audio-tracks. + A video file is a container. It usually contains one + video track and one or more audio tracks. + How these tracks are stored in the file is defined by the + file format. Common formats are + avi, mov, ogg, mkv, mpeg, mpeg-ts, mp4, flv, or vob.
--How these tracks are stored in the file is defined by the file-format. Common formats are avi, mov, ogg, mkv, mpeg, mpeg-ts, mp4, flv, vob + Each of the tracks by itself is encoded using a Codec. Common video codecs + are h264, mpeg2, mpeg4, theora, mjpeg, wmv3. Common audio codecs are + mp2, mp3, dts, aac, wav/pcm.
- --Each of the tracks by itself in encoded - using a Codec. Common Video-Codecs are h264, mpeg2, mpeg4, theora, mjpeg, wmv3. Audio-Codecs: mp2, mp3, dts, aac, wav/pcm. -
--Not all codecs can be packed into a given format. For example the 'mpeg' format is limited to mpeg2, mpeg4 and mp3 codecs (not entirely true). DVDs do have stringent limitations as well. The opposite would be .avi; pretty much every audio/video codec combination can be contained in an avi file-format. + Not all codecs can be packed into a given format. For example the + mpeg format is limited to mpeg2, mpeg4 and mp3 codecs (not entirely true). + DVDs do have stringent limitations as well. The opposite would be .avi; + pretty much every audio/video codec combination can be contained in an avi + file-format.
--To make things worse, naming conventions for video codecs and formats are often identical (esp mpeg ones) which leads to confusion. -All in all it is a very wide and deep field. Suffice there are different uses for different codecs and formats. + To make things worse, naming conventions for video codecs and formats are + often identical (especially MPEG ones) which leads to confusion. + All in all it is a very wide and deep field. Suffice there are different + uses for different codecs and formats.
--Ardour supports a wide variety of video file-formats and video-codecs. More specifically, Ardour itself actually does not support any video at all but delegates handling of video files to ffmpeg which supports over 350 different video-codecs and more than 250 file-formats. + Ardour supports a wide variety of video file formats codecs. More + specifically, Ardour itself actually does not support any video at all + but delegates handling of video files to ffmpeg, which supports over 350 different + video codecs and more than 250 file formats.
--When importing a video into Ardour, it will be transcoded (transcoding: change from one format and codec to another) to avi/mjpeg for internal use (this allows reliable seeking to frames at low CPU cost - the file-size will increase, but hard-disks are large and fast). + When importing a video into Ardour, it will be transcoded + (changed from one format and codec to another) to avi/mjpeg for internal + use (this allows reliable seeking to frames at low CPU cost — the + file size will increase, but hard disks are large and fast).
--The export dialog includes presets for common format & codec combinations (such as DVD, web-video,..). If in doubt use one of the presets. + The export dialog includes presets for common format and codec + combinations (such as DVD, web-video,..). If in doubt use one of the + presets.
--As last note: Every time a video is transcoded the quality can only get worse. Hence for the final mastering/muxing process, one should always to back and use the original source of the video. + As last note: every time a video is transcoded, the quality can only get + worse. Hence for the final mastering/muxing process, one should + always to back and use the original source of the video.
diff --git a/_manual/23_video-timeline/03_operations.html b/_manual/23_video-timeline/03_operations.html index 2d3a6ed..d128913 100644 --- a/_manual/23_video-timeline/03_operations.html +++ b/_manual/23_video-timeline/03_operations.html @@ -5,116 +5,114 @@ title: Workflow & Operations-Adding video is a two-step process. + Adding video is a two-step process: select a video file, and choose + import mode and optionally select an audio track to extract.
-
-
-
+ 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:
-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: -
- --
- -
-
-
-The second step analyzes the video file in more detail and offers import options: -
--
-
-
-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 which required to decode and play the file.
-A small, low-quality representation of the image is usually sufficient for editing sound-tracks.
-The default bitrate in kbit/sec is set to use 0.7 bits per pixel. (compare: the average DVD medium uses 5000kbit/sec; at PAL resolution this is about 0.5 bits per pixel - but the DVD is using the mpeg2 - a denser compression algorithm than the mjpeg codec used by Ardour.)
+ 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.
+ 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 mpeg2 — a denser compression algorithm than the
+ mjpeg codec used by Ardour.)
-Well now,.. + Well now,..
- --
- - --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. + 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.
--The video file can be chosen freely, For high quality exports, the original file (before it was imported in the timeline) should be used. This is also the default if the file can be found, if not Ardour will suggest to use the imported proxy-video which is currently in use on the timeline. Any existing audio tracks on the video-file are stripped. + 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.
--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. + 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.
-Audio-samplerate and normalize-audio are options for Ardour's audio exporter. The remaining settings are options that are directly passed on to ffmpeg. + Audio samplerate and normalization are options for Ardour's audio exporter. + The remaining settings are options that are directly passed on to ffmpeg.
-The file-format is determined by the file-extension that you choose for the output file (.avi, .mov, .flv, .ogv, .webm,...) -Note: not all combinations of format+codec+settings produce files which are according so spec. e.g. flv files require sample-rates of 22.1kHz or 44.1kHz, mpeg containers can not be used with ac3 audio-codec, etc. If in doubt, use one of the built-in presets + 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.
--
-Ardour video export is not recommended for mastering!\nWhile '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 comes in handy to do quick snapshots, intermediates, dailies or online videos. + 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.
-- 2.37.2