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https://github.com/mpv-player/mpv
synced 2025-04-10 19:51:43 +00:00
some more fixes suggested by The Wanderer and Rich
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15472 b3059339-0415-0410-9bf9-f77b7e298cf2
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@ -666,7 +666,7 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37,
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grouped as a frame, even though they are not intended to be shown
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grouped as a frame, even though they are not intended to be shown
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at the same moment in time.
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at the same moment in time.
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The MPEG-2 standard used on DVD and digital TV provides both a
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The MPEG-2 standard used on DVD and digital TV provides both a
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way to encode the original progressive frames, and to store in
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way to encode the original progressive frames, and store in
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the header of each frame the number of fields for which it should
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the header of each frame the number of fields for which it should
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be shown.
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be shown.
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If this method has been used, the movie will often be described
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If this method has been used, the movie will often be described
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@ -713,7 +713,7 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37,
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</para></listitem>
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</para></listitem>
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<listitem><para>
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<listitem><para>
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If <application>MPlayer</application> never shows the framerate
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If <application>MPlayer</application> never shows the framerate
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change, and two frames out of every five appear combed, your
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changing, and two frames out of every five appear combed, your
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movie is "hard telecined" 24fps content.
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movie is "hard telecined" 24fps content.
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</para></listitem>
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</para></listitem>
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</itemizedlist>
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</itemizedlist>
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@ -745,7 +745,7 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37,
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</sect2>
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</sect2>
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<sect2 id="menc-feat-dvd-mpeg4-2pass">
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<sect2 id="menc-feat-dvd-mpeg4-2pass">
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<title>Constant quantizer vs. multi-pass</title>
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<title>Constant quantizer vs. multipass</title>
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<para>
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<para>
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It is possible to encode your movie at a wide range of qualities.
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It is possible to encode your movie at a wide range of qualities.
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@ -758,7 +758,7 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37,
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<para>
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<para>
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There are three approaches to encoding the video: constant bitrate
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There are three approaches to encoding the video: constant bitrate
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(CBR), constant quantizer, and multi-pass (ABR, or average bitrate).
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(CBR), constant quantizer, and multipass (ABR, or average bitrate).
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</para>
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</para>
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<note><title>Note:</title>
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<note><title>Note:</title>
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@ -766,9 +766,10 @@ vcodec=mpeg2video:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37,
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Most codecs which support ABR encode only support two pass encode
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Most codecs which support ABR encode only support two pass encode
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while some others such as <systemitem class="library">x264</systemitem>
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while some others such as <systemitem class="library">x264</systemitem>
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and <systemitem class="library">libavcodec</systemitem> support
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and <systemitem class="library">libavcodec</systemitem> support
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multi-pass, which slightly improves quality at each pass,
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multipass, which slightly improves quality at each pass,
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yet this improvement is no longer noticeable after the 6th or so pass.
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yet this improvement is no longer mesurable nor noticeable after the
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Therefore, in this section, two pass and multi-pass will be used
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4th or so pass.
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Therefore, in this section, two pass and multipass will be used
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interchangeably.
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interchangeably.
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</para>
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</para>
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</note>
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</note>
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