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Diffstat (limited to 'DOCS/xml/en/encoding-guide.xml')
| -rw-r--r-- | DOCS/xml/en/encoding-guide.xml | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/DOCS/xml/en/encoding-guide.xml b/DOCS/xml/en/encoding-guide.xml index 448ed867fb..ac85040b2b 100644 --- a/DOCS/xml/en/encoding-guide.xml +++ b/DOCS/xml/en/encoding-guide.xml @@ -63,14 +63,15 @@ presentation on a television, and often does <emphasis role="bold">not</emphasis> correspond to the original format of the movie. - Experience shows that NTSC contents are a lot more difficult to encode - given that there more elements to identify in the source. + Experience shows that NTSC material is a lot more difficult to encode, + because there more elements to identify in the source. In order to produce a suitable encode, you need to know the original format. - Failure to take this into account will result in ugly combing - (interlacing) artifacts, duplicated or lost frames in your encode. + Failure to take this into account will result in various flaws in your + encode, including ugly combing (interlacing) artifacts and duplicated + or even lost frames. Besides being ugly, the artifacts also harm coding efficiency: - You will get worse quality per bitrate. + You will get worse quality per unit bitrate. </para> <sect3 id="menc-feat-dvd-mpeg4-preparing-encode-fps"> @@ -1690,9 +1691,9 @@ Note the <option>ilmv</option> and <option>ildct</option> options. </para> <para> - Another way to tell if your source is telecined or not is to watch the - the source appending <option>-vf pullup -v</option> to your command line - to see how <option>pullup</option> matches frames. + Another way to tell if your source is telecined or not is to play + the source with the <option>-vf pullup</option> and <option>-v</option> + command line options to see how <option>pullup</option> matches frames. If the source is telecined, you should see on the console a 3:2 pattern with <systemitem>0+.1.+2</systemitem> and <systemitem>0++1</systemitem> alternating. |