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authordiego <diego@b3059339-0415-0410-9bf9-f77b7e298cf2>2008-10-14 22:28:52 +0000
committerdiego <diego@b3059339-0415-0410-9bf9-f77b7e298cf2>2008-10-14 22:28:52 +0000
commit07589781f454a0fa320a2925cc043465b1b512da (patch)
tree27cc8170e0a18330b85fb7f8198c3a966ab9d82c /DOCS
parentc27f7192370cff9c70b84fed7f6904015db60c34 (diff)
downloadmpv-07589781f454a0fa320a2925cc043465b1b512da.tar.bz2
mpv-07589781f454a0fa320a2925cc043465b1b512da.tar.xz
Remove some pointless and/or outdated codec documentation sections.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@27773 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'DOCS')
-rw-r--r--DOCS/xml/en/codecs.xml204
1 files changed, 0 insertions, 204 deletions
diff --git a/DOCS/xml/en/codecs.xml b/DOCS/xml/en/codecs.xml
index 909efa2ef9..057591daba 100644
--- a/DOCS/xml/en/codecs.xml
+++ b/DOCS/xml/en/codecs.xml
@@ -15,64 +15,6 @@ of our homepage.
</para>
<para>
-The most important ones above all:
-</para>
-
-<itemizedlist>
-<listitem><para>
- <emphasis role="bold">MPEG-1</emphasis> (<emphasis role="bold">VCD</emphasis>) and
- <emphasis role="bold">MPEG-2</emphasis> (<emphasis role="bold">DVD</emphasis>) video
-</para></listitem>
-<listitem><para>
- native decoders for <emphasis role="bold">all DivX variants,
- 3ivX, Microsoft MPEG-4</emphasis> v1, v2 and other MPEG-4 variants
-</para></listitem>
-<listitem><para>
- native decoder for <emphasis role="bold">Windows Media Video 7/8</emphasis>
- (<emphasis role="bold">WMV1/WMV2</emphasis>), and Win32 DLL decoder
- for <emphasis role="bold">Windows Media Video 9</emphasis>
- (<emphasis role="bold">WMV3</emphasis>),
- both used in <filename>.wmv</filename> files
-</para></listitem>
-<listitem><para>
- native <emphasis role="bold">Sorenson 1 (SVQ1)</emphasis> decoder
-</para></listitem>
-<listitem><para>
- native <emphasis role="bold">Sorenson 3 (SVQ3)</emphasis> decoder
-</para></listitem>
-<listitem><para>
- <emphasis role="bold">3ivx</emphasis> v1, v2 decoder
-</para></listitem>
-<listitem><para>
- Cinepak and <emphasis role="bold">Intel Indeo</emphasis> codecs
- (3.1,3.2,4.1,5.0)
-</para></listitem>
-<listitem><para>
- <emphasis role="bold">MJPEG</emphasis>, AVID, VCR2, ASV2 and other hardware
- formats
-</para></listitem>
-<listitem><para>
- VIVO 1.0, 2.0, I263 and other <emphasis role="bold">H.263(+)</emphasis>
- variants
-</para></listitem>
-<listitem><para>
- FLI/FLC
-</para></listitem>
-<listitem><para>
- <emphasis role="bold">RealVideo 1.0 &amp; 2.0</emphasis> from
- <systemitem class="library">libavcodec</systemitem>, and
- <emphasis role="bold">RealVideo 3.0 &amp; 4.0</emphasis> codecs using
- RealPlayer libraries
-</para></listitem>
-<listitem><para>
- native decoder for HuffYUV
-</para></listitem>
-<listitem><para>
- Various old simple RLE-like formats
-</para></listitem>
-</itemizedlist>
-
-<para>
If you have a Win32 codec not listed here which is not supported yet,
please read the <link linkend="codec-importing">codec importing HOWTO</link>
and help us add support for it.
@@ -196,103 +138,6 @@ There are also many advanced features in the H.264 specification
which have nothing to do with video quality per se; many of these
are not yet implemented in <systemitem class="library">x264</systemitem>.
</para>
-
-<itemizedlist>
-<title>Encoder features</title>
- <listitem><para>CAVLC/CABAC</para></listitem>
- <listitem><para>Multi-references</para></listitem>
- <listitem><para>
- Intra: all macroblock types (16x16, 8x8, and 4x4 with all predictions)
- </para></listitem>
- <listitem><para>
- Inter P: all partitions (from 16x16 down to 4x4)
- </para></listitem>
- <listitem><para>
- Inter B: partitions from 16x16 down to 8x8 (including SKIP/DIRECT)
- </para></listitem>
- <listitem><para>
- Ratecontrol: constant quantizer, constant bitrate, single or multipass ABR,
- optional VBV
- </para></listitem>
- <listitem><para>Scene cut detection</para></listitem>
- <listitem><para>Adaptive B-frame placement</para></listitem>
- <listitem><para>
- B-frames as references / arbitrary frame order
- </para></listitem>
- <listitem><para>8x8 and 4x4 adaptive spatial transform</para></listitem>
- <listitem><para>Lossless mode</para></listitem>
- <listitem><para>Custom quantization matrices</para></listitem>
- <listitem><para>Parallel encoding of multiple slices</para></listitem>
- <listitem><para>Interlacing</para></listitem>
-</itemizedlist>
-</sect3>
-
-
-<sect3 id="codec-h264-whatis">
-<title>What is H.264?</title>
-
-<para>
-H.264 is one name for a new digital video codec jointly developed
-by the ITU and MPEG.
-It can also be correctly referred to by the cumbersome names of
-"ISO/IEC 14496-10" or "MPEG-4 Part 10".
-More frequently, it is referred to as "MPEG-4 AVC" or just "AVC".
-</para>
-
-<para>
-Whatever you call it, H.264 may be worth trying because it can typically match
-the quality of MPEG-4 ASP with 5%-30% less bitrate.
-Actual results will depend on both the source material and the encoder.
-The gains from using H.264 do not come for free: Decoding H.264
-streams seems to have steep CPU and memory requirements.
-For instance, on a 1733 MHz Athlon, a DVD-resolution 1500kbps H.264
-video requires around 35% CPU to decode.
-By comparison, decoding a DVD-resolution 1500kbps MPEG-4 ASP stream
-requires around 10% CPU.
-This means that decoding high-definition streams is almost out of
-the question for most users.
-It also means that even a decent DVD rip may sometimes stutter on
-processors slower than 2.0 GHz or so.
-</para>
-
-<para>
-At least with <systemitem class="library">x264</systemitem>,
-encoding requirements are not much worse than what you are used to
-with MPEG-4 ASP.
-For instance, on a 1733 MHz Athlon a typical DVD encode would run
-at 5-15fps.
-</para>
-
-<para>
-This document is not intended to explain the details of H.264,
-but if you are interested in a brief overview, you may want to read
-<ulink url="http://www.cdt.luth.se/~peppar/kurs/smd151/spie04-h264OverviewPaper.pdf">The H.264/AVC Advanced Video Coding Standard: Overview and Introduction to the Fidelity Range Extensions</ulink>.
-</para>
-</sect3>
-
-
-<sect3 id="codec-x264-playback">
-<title>How can I play H.264 videos with
- <application>MPlayer</application>?</title>
-
-<para>
-<application>MPlayer</application> uses
-<systemitem class="library">libavcodec</systemitem>'s H.264 decoder.
-<systemitem class="library">libavcodec</systemitem> has had at
-least minimally usable H.264 decoding since around July 2004,
-however major changes and improvements have been implemented since
-that time, both in terms of more functionality supported and in
-terms of improved CPU usage.
-Just to be certain, it is always a good idea to use a recent Subversion
-checkout.
-</para>
-
-<para>
-If you want a quick and easy way to know whether there have been
-recent changes to <systemitem class="library">libavcodec</systemitem>'s
-H.264 decoding, you might keep an eye on
-<ulink url="http://svn.mplayerhq.hu/ffmpeg/trunk/libavcodec/h264.c?view=log">FFmpeg Subversion repository's web interface</ulink>.
-</para>
</sect3>
@@ -342,55 +187,6 @@ satisfied the requirements for <systemitem class="library">x264</systemitem>.
<sect1 id="audio-codecs">
<title>Audio codecs</title>
-<itemizedlist>
-<title>The most important audio codecs above all:</title>
-<listitem><para>
- MPEG layer 1/2/3 (MP1/2/3) audio (<emphasis role="bold">native</emphasis>
- code, with MMX/SSE/3DNow! optimization)
-</para></listitem>
-<listitem><para>
- Windows Media Audio 7 and 8 (AKA WMAv1 and WMAv2)
- (<emphasis role="bold">native</emphasis> code, with
- <link linkend="ffmpeg"><systemitem class="library">libavcodec</systemitem></link>)
-</para></listitem>
-<listitem><para>
- Windows Media Audio 9 (WMAv3) (using DMO DLL)
-</para></listitem>
-<listitem><para>
- AC-3 Dolby audio (<emphasis role="bold">native</emphasis> code, with
- MMX/SSE/3DNow! optimization)
-</para></listitem>
-<listitem><para>
- AC-3 passing through sound card hardware
-</para></listitem>
-<listitem><para>
- AAC
-</para></listitem>
-<listitem><para>
- Ogg Vorbis audio codec (<emphasis role="bold">native</emphasis> library)
-</para></listitem>
-<listitem><para>
- RealAudio: DNET (low bitrate AC-3), Cook, Sipro and ATRAC3
-</para></listitem>
-<listitem><para>
- QuickTime: Qualcomm and QDesign audio codecs
-</para></listitem>
-<listitem><para>
- VIVO audio (g723, Vivo Siren)
-</para></listitem>
-<listitem><para>
- Voxware audio (using DirectShow DLL)
-</para></listitem>
-<listitem><para>
- alaw and ulaw, various GSM, ADPCM and PCM formats and other simple old
- audio codecs
-</para></listitem>
-<listitem><para>
- Adaptive Multi-Rate (AMR) speech codecs
-</para></listitem>
-</itemizedlist>
-
-<!-- ********** -->
<sect2 id="swac3">
<title>Software AC-3 decoding</title>