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rebalance method tools (-m) for methods [0..4]

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(methods 5 and 6 are still untouched).

Methods #0 and #1 got much faster
Method #2 gets vastly improved in quality
Method #3 is noticeably faster for little lower quality
Method #4 (default) is 10-20% faster for comparable quality

+ update the internal doc about the methods' tools.

Example of speed difference:

Time to encode picture:
Method | Before | After
-m 0   | 1.272s | 0.517s
-m 1   | 1.295s | 0.623s
-m 2   | 2.217s | 0.834s
-m 3   | 2.816s | 2.243s
-m 4   | 3.235s | 3.014s
-m 5   | 3.668s | 3.654s
-m 6   | 8.296s | 8.235s

Change-Id: Ic41fda5de65066b3a6586cb8ae1ebb0206d47fe0
This commit is contained in:
Pascal Massimino
2013-02-26 05:22:44 -08:00
parent 5189957e07
commit 58ca6f65b7
5 changed files with 111 additions and 34 deletions
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36
src/enc/webpenc.c
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@ -93,22 +93,26 @@ static void ResetBoundaryPredictions(VP8Encoder* const enc) {
enc->nz_[-1] = 0; // constant
}
// Map configured quality level to coding tools used.
//-------------+---+---+---+---+---+---+
// Quality | 0 | 1 | 2 | 3 | 4 | 5 +
//-------------+---+---+---+---+---+---+
// dynamic prob| ~ | x | x | x | x | x |
//-------------+---+---+---+---+---+---+
// rd-opt modes| | | x | x | x | x |
//-------------+---+---+---+---+---+---+
// fast i4/i16 | x | x | | | | |
//-------------+---+---+---+---+---+---+
// rd-opt i4/16| | | x | x | x | x |
//-------------+---+---+---+---+---+---+
// Trellis | | x | | | x | x |
//-------------+---+---+---+---+---+---+
// full-SNS | | | | | | x |
//-------------+---+---+---+---+---+---+
// Mapping from config->method_ to coding tools used.
//-------------------+---+---+---+---+---+---+---+
// Method | 0 | 1 | 2 | 3 |(4)| 5 | 6 |
//-------------------+---+---+---+---+---+---+---+
// fast probe | x | | | x | | | |
//-------------------+---+---+---+---+---+---+---+
// dynamic proba | ~ | x | x | x | x | x | x |
//-------------------+---+---+---+---+---+---+---+
// fast mode analysis| | | | | x | x | x |
//-------------------+---+---+---+---+---+---+---+
// basic rd-opt | | | | x | x | x | x |
//-------------------+---+---+---+---+---+---+---+
// disto-score i4/16 | | | x | | | | |
//-------------------+---+---+---+---+---+---+---+
// rd-opt i4/16 | | | ~ | x | x | x | x |
//-------------------+---+---+---+---+---+---+---+
// Trellis | | | | | | x |Ful|
//-------------------+---+---+---+---+---+---+---+
// full-SNS | | | | | x | x | x |
//-------------------+---+---+---+---+---+---+---+
static void MapConfigToTools(VP8Encoder* const enc) {
const int method = enc->config_->method;