<div dir="ltr"><div>I like to use the mp4 format because it is supported by HTML5 and I can embed it in a web page for streaming. mkv isn't as easy.</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Apr 7, 2022 at 10:51 AM Brian Cluff via PLUG-discuss <<a href="mailto:plug-discuss@lists.phxlinux.org">plug-discuss@lists.phxlinux.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
MP4, AVI, MOV, FLV...etc...etc are container formats. Think of them
as specialty file systems that hold the various "files" that make up
of the video. Those parts can include the video, the audio,
subtitles, thumbnail images, meta data... etc...etc.. and often time
multiple versions of any combination of those.<br>
<br>
The various containers can usually hold a number of different types
of video formats inside them such as h.264, h.264/HEVC, MPEG4,
Theora, VP8, VP9, AV1. Then there are different audio formats and
they can usually use just about anything you can think of as an
audio codec, such as MP2, WAV but often times they use formats that
you don't usually see outside of a video pairing like AC3, AAC, but
there's no reason you couldn't just have an stand alone audio file
in any format that can be encoded into a video. <br>
<br>
So just looking at the suffix of the video file won't tell you
anything about if your computer can play it back or not. What you
really need to know is the CODECS that make up various parts of the
video are and the resolution that the video is stored at. Your
computer will have an easier time of with some video formats than
others. You'll find that your computer will usually have an easier
time with older video formats that are much larger because the
hardware decompressing support for that format is baked into the GPU
or the CPU, so you'll find that putting a newer generation video
card into even an old computer can make it instantly be able to play
back the most modern 4K video simply because all the decompressing
is happening on the GPU and the CPU has little to do with it.<br>
<br>
If you have VLC, you can go to "Tools -> Codec Information" and
"Tools -> Media Information" and it will give you a rough
breakdown of what makes up your particular video.<br>
Another really nice tool is mediainfo ( apt install mediainfo ).
Just run that with your video file name as the argument and it will
spit out info about all the various parts that make up your video
(or audio) file.<br>
<br>
Brian Cluff<br>
PS<br>
My personal favorite container format is MKV since it seems to be
able to hold just about anything you throw at it without limitation.<br>
<br>
<br>
<div>On 4/7/22 08:46, Michael via
PLUG-discuss wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">about converting it to x264..... is this going to
be an mp4 file?<br>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, Apr 7, 2022 at 10:53
AM Bob Elzer via PLUG-discuss <<a href="mailto:plug-discuss@lists.phxlinux.org" target="_blank">plug-discuss@lists.phxlinux.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div>ok now try <br>
</div>
<div><br>
</div>
<div>
<pre><code>ffmpeg -i input.mp4 -codec:v libtheora -qscale:v 3 -codec:a libvorbis -qscale:a 3 -f ogv output.ogg
</code></pre>
<pre><code>you might also want to try converting it to x264 just google convert video to ffmpeg x264
</code></pre>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, Apr 6, 2022 at
4:22 PM Michael via PLUG-discuss <<a href="mailto:plug-discuss@lists.phxlinux.org" target="_blank">plug-discuss@lists.phxlinux.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">forgot to mention the ones that would not
load<br>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, Apr 6, 2022 at
7:19 PM Michael <<a href="mailto:bmike1@gmail.com" target="_blank">bmike1@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">I meant 1080 not 1099.<br>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, Apr 6,
2022 at 7:16 PM Michael <<a href="mailto:bmike1@gmail.com" target="_blank">bmike1@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">I did. Those ones stuttered. The
other ones had 2 hour downloads. The 1099 ogg
file stuttered.<br>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, Apr 6,
2022 at 7:10 PM Bob Elzer via PLUG-discuss
<<a href="mailto:plug-discuss@lists.phxlinux.org" target="_blank">plug-discuss@lists.phxlinux.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="auto">I would try the mp4 versions
too
<div dir="auto"><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed,
Apr 6, 2022, 3:07 PM Michael via
PLUG-discuss <<a href="mailto:plug-discuss@lists.phxlinux.org" target="_blank">plug-discuss@lists.phxlinux.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">After further investigation
I found <a href="https://download.blender.org/peach/bigbuckbunny_movies/big_buck_bunny_720p_stereo.ogg" rel="noreferrer" target="_blank">720p_stereo.ogg</a>
and <a href="https://download.blender.org/peach/bigbuckbunny_movies/big_buck_bunny_720p_stereo.ogg" rel="noreferrer" target="_blank">480p_stereo.ogg</a>
work. So I need to convert it to one of
those formats.<br>
<div> </div>
<div>I assume you want me to convert it
to 720.</div>
<div>-- <br>
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<div dir="ltr">
<div><span style="font-size:12.8px">:-)~MIKE~(-:</span><br>
</div>
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