Control of active min quantizer for two pass.
Create look up tables for controlling the active quantizer range. Some initial tuning to improve quality circa 0.5% on test set. Clean up of some stats output code Change-Id: Ia698a8525f8b8129a503cadace3ee73fe888f543
This commit is contained in:
Paul Wilkins
Родитель
47fc8f2683
Коммит
ff3068d6da
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@ -150,6 +150,95 @@ extern const int qzbin_factors[129];
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extern void vp8cx_init_quantizer(VP8_COMP *cpi);
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extern const int vp8cx_base_skip_false_prob[128];
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// Tables relating active max Q to active min Q
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static const int kf_low_motion_minq[QINDEX_RANGE] =
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{
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4,
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5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 10,10,
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11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,
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19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,
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27,27,28,28,29,29,30,30,31,32,33,34,35,36,37,38,
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};
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static const int kf_high_motion_minq[QINDEX_RANGE] =
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{
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1,
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2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5,
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6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10,10,
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11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,
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19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,
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27,27,28,28,29,29,30,30,31,31,32,32,33,33,34,34,
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35,35,36,36,37,38,39,40,41,42,43,44,45,46,47,48,
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};
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/*static const int kf_minq[QINDEX_RANGE] =
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{
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 6, 6,
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7, 7, 8, 8, 9, 9, 10,10,11,11,12,12,13,13,14,14,
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15,15,16,16,17,17,18,18,19,19,20,20,21,21,22,22,
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23,23,24,24,25,25,26,26,27,27,28,28,29,29,30,30,
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31,31,32,32,33,33,34,34,35,35,36,36,37,37,38,38
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};*/
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static const int gf_low_motion_minq[QINDEX_RANGE] =
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{
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0,0,0,0,1,1,1,1,1,1,1,1,2,2,2,2,
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3,3,3,3,4,4,4,4,5,5,5,5,6,6,6,6,
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7,7,7,7,8,8,8,8,9,9,9,9,10,10,10,10,
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11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,
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19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,
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27,27,28,28,29,29,30,30,31,31,32,32,33,33,34,34,
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35,35,36,36,37,37,38,38,39,39,40,40,41,41,42,42,
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43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58
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};
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static const int gf_mid_motion_minq[QINDEX_RANGE] =
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{
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0,0,0,0,1,1,1,1,1,1,2,2,3,3,3,4,
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4,4,5,5,5,6,6,6,7,7,7,8,8,8,9,9,
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9,10,10,10,10,11,11,11,12,12,12,12,13,13,13,14,
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14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21,
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22,22,23,23,24,24,25,25,26,26,27,27,28,28,29,29,
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30,30,31,31,32,32,33,33,34,34,35,35,36,36,37,37,
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38,39,39,40,40,41,41,42,42,43,43,44,45,46,47,48,
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49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,
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};
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static const int gf_high_motion_minq[QINDEX_RANGE] =
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{
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0,0,0,0,1,1,1,1,1,2,2,2,3,3,3,4,
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4,4,5,5,5,6,6,6,7,7,7,8,8,8,9,9,
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9,10,10,10,11,11,12,12,13,13,14,14,15,15,16,16,
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17,17,18,18,19,19,20,20,21,21,22,22,23,23,24,24,
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25,25,26,26,27,27,28,28,29,29,30,30,31,31,32,32,
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33,33,34,34,35,35,36,36,37,37,38,38,39,39,40,40,
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41,41,42,42,43,44,45,46,47,48,49,50,51,52,53,54,
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55,56,57,58,59,60,62,64,66,68,70,72,74,76,78,80,
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};
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/*static const int gf_arf_minq[QINDEX_RANGE] =
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{
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0,0,0,0,1,1,1,1,1,1,2,2,3,3,3,4,
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4,4,5,5,5,6,6,6,7,7,7,8,8,8,9,9,
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9,10,10,10,11,11,11,12,12,12,13,13,13,14,14,14,
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15,15,16,16,17,17,18,18,19,19,20,20,21,21,22,22,
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23,23,24,24,25,25,26,26,27,27,28,28,29,29,30,30,
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31,31,32,32,33,33,34,34,35,35,36,36,37,37,38,39,
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39,40,40,41,41,42,42,43,43,44,45,46,47,48,49,50,
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51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66
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};*/
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static const int inter_minq[QINDEX_RANGE] =
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{
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0,0,0,0,1,1,2,3,3,4,4,5,6,6,7,7,
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8,8,9,9,10,11,11,12,12,13,13,14,14,15,15,16,
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16,17,17,17,18,18,19,19,20,20,21,21,22,22,22,23,
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23,24,24,24,25,25,26,27,28,28,29,30,31,32,33,34,
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35,35,36,37,38,39,39,40,41,42,43,43,44,45,46,47,
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47,48,49,49,51,52,53,54,54,55,56,56,57,57,58,58,
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59,59,60,61,61,62,62,63,64,64,65,66,67,67,68,69,
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69,70,71,71,72,73,74,75,76,76,77,78,79,80,81,81,
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};
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void vp8_initialize()
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{
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@ -4167,87 +4256,49 @@ static void encode_frame_to_data_rate
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// Set an active best quality and if necessary active worst quality
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if (cpi->pass == 2 || (cm->current_video_frame > 150))
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{
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//if ( (cm->frame_type == KEY_FRAME) || cm->refresh_golden_frame )
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int Q;
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int i;
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int bpm_target;
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//int tmp;
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vp8_clear_system_state();
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Q = cpi->active_worst_quality;
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if ((cm->frame_type == KEY_FRAME) || cm->refresh_golden_frame || cpi->common.refresh_alt_ref_frame)
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{
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vp8_clear_system_state();
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if (cm->frame_type != KEY_FRAME)
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{
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// Where a gf overlays an existing arf then allow active max Q to drift to highest allowed value.
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//if ( cpi->common.refresh_golden_frame && cpi->source_alt_ref_active )
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//cpi->active_worst_quality = cpi->worst_quality;
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if (cpi->avg_frame_qindex < cpi->active_worst_quality)
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Q = cpi->avg_frame_qindex;
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if (cpi->section_is_low_motion)
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bpm_target = (vp8_bits_per_mb[cm->frame_type][Q] * ((Q * 3 / 2) + 128)) / 64;
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else if (cpi->section_is_fast_motion)
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bpm_target = (vp8_bits_per_mb[cm->frame_type][Q] * (Q + 128)) / 64;
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if ( cpi->gfu_boost > 1000 )
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cpi->active_best_quality = gf_low_motion_minq[Q];
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else if ( cpi->gfu_boost < 400 )
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cpi->active_best_quality = gf_high_motion_minq[Q];
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else
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bpm_target = (vp8_bits_per_mb[cm->frame_type][Q] * ((Q * 5 / 4) + 128)) / 64;
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}
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// KEY FRAMES
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else
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{
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if (cpi->section_is_low_motion)
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bpm_target = (vp8_bits_per_mb[cm->frame_type][Q] * (Q + 240)) / 64; // Approx 2.5 to 4.5 where Q has the range 0-127
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else
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bpm_target = (vp8_bits_per_mb[cm->frame_type][Q] * (Q + 160)) / 64;
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}
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cpi->active_best_quality = gf_mid_motion_minq[Q];
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for (i = Q; i > 0; i--)
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{
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if (bpm_target <= vp8_bits_per_mb[cm->frame_type][i])
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break;
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}
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cpi->active_best_quality = i;
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// this entire section could be replaced by a look up table
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#if 0
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{
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int Q, best_q[128];
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for (Q = 0; Q < 128; Q++)
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{
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bpm_target = (vp8_bits_per_mb[cm->frame_type][Q] * (Q + 160)) / 64; // Approx 2.5 to 4.5 where Q has the range 0-127
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for (i = Q; i > 0; i--)
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{
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if (bpm_target <= vp8_bits_per_mb[cm->frame_type][i])
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break;
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}
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best_q[Q] = i;
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}
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Q += 0;
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}
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#endif
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/*cpi->active_best_quality = gf_arf_minq[Q];
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tmp = (cpi->gfu_boost > 1000) ? 600 : cpi->gfu_boost - 400;
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//tmp = (cpi->gfu_boost > 1000) ? 600 :
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//(cpi->gfu_boost < 400) ? 0 : cpi->gfu_boost - 400;
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tmp = 128 - (tmp >> 4);
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cpi->active_best_quality = (cpi->active_best_quality * tmp)>>7;*/
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}
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// KEY FRAMES
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else
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{
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if (cpi->gfu_boost > 1000)
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cpi->active_best_quality = kf_low_motion_minq[Q];
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else
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cpi->active_best_quality = kf_high_motion_minq[Q];
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}
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}
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else
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{
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vp8_clear_system_state();
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//bpm_target = (vp8_bits_per_mb[cm->frame_type][Q]*(Q+128))/64; // Approx 2 to 4 where Q has the range 0-127
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bpm_target = (vp8_bits_per_mb[cm->frame_type][Q] * (Q + 192)) / 128; // Approx * 1.5 to 2.5 where Q has range 0-127
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for (i = Q; i > 0; i--)
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{
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if (bpm_target <= vp8_bits_per_mb[cm->frame_type][i])
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break;
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}
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cpi->active_best_quality = i;
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cpi->active_best_quality = inter_minq[Q];
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}
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// If CBR and the buffer is as full then it is reasonable to allow higher quality on the frames
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@ -4952,9 +5003,39 @@ static void encode_frame_to_data_rate
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vp8_clear_system_state(); //__asm emms;
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if (cpi->total_coded_error_left != 0.0)
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fprintf(f, "%10d %10d %10d %10d %10d %10d %10d %10d %6ld %6ld %6ld %6ld %5ld %5ld %5ld %8ld %8.2f %10d %10.3f %10.3f %8ld\n", cpi->common.current_video_frame, cpi->this_frame_target, cpi->projected_frame_size, (cpi->projected_frame_size - cpi->this_frame_target), (int)cpi->total_target_vs_actual, (cpi->oxcf.starting_buffer_level - cpi->bits_off_target), (int)cpi->total_actual_bits, cm->base_qindex, cpi->active_best_quality, cpi->active_worst_quality, cpi->avg_frame_qindex, cpi->zbin_over_quant, cm->refresh_golden_frame, cm->refresh_alt_ref_frame, cm->frame_type, cpi->gfu_boost, cpi->est_max_qcorrection_factor, (int)cpi->bits_left, cpi->total_coded_error_left, (double)cpi->bits_left / cpi->total_coded_error_left, cpi->tot_recode_hits);
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fprintf(f, "%10d %10d %10d %10d %10d %10d %10d %10d %6ld %6ld"
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"%6ld %6ld %5ld %5ld %5ld %8ld %8.2f %10d %10.3f"
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"%10.3f %8ld\n",
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cpi->common.current_video_frame, cpi->this_frame_target,
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cpi->projected_frame_size,
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(cpi->projected_frame_size - cpi->this_frame_target),
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(int)cpi->total_target_vs_actual,
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(cpi->oxcf.starting_buffer_level-cpi->bits_off_target),
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(int)cpi->total_actual_bits, cm->base_qindex,
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cpi->active_best_quality, cpi->active_worst_quality,
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cpi->avg_frame_qindex, cpi->zbin_over_quant,
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cm->refresh_golden_frame, cm->refresh_alt_ref_frame,
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cm->frame_type, cpi->gfu_boost,
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cpi->est_max_qcorrection_factor, (int)cpi->bits_left,
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cpi->total_coded_error_left,
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(double)cpi->bits_left / cpi->total_coded_error_left,
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cpi->tot_recode_hits);
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else
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fprintf(f, "%10d %10d %10d %10d %10d %10d %10d %10d %6ld %6ld %6ld %6ld %5ld %5ld %5ld %8ld %8.2f %10d %10.3f %8ld\n", cpi->common.current_video_frame, cpi->this_frame_target, cpi->projected_frame_size, (cpi->projected_frame_size - cpi->this_frame_target), (int)cpi->total_target_vs_actual, (cpi->oxcf.starting_buffer_level - cpi->bits_off_target), (int)cpi->total_actual_bits, cm->base_qindex, cpi->active_best_quality, cpi->active_worst_quality, cpi->avg_frame_qindex, cpi->zbin_over_quant, cm->refresh_golden_frame, cm->refresh_alt_ref_frame, cm->frame_type, cpi->gfu_boost, cpi->est_max_qcorrection_factor, (int)cpi->bits_left, cpi->total_coded_error_left, cpi->tot_recode_hits);
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fprintf(f, "%10d %10d %10d %10d %10d %10d %10d %10d %6ld %6ld"
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"%6ld %6ld %5ld %5ld %5ld %8ld %8.2f %10d %10.3f"
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"%8ld\n",
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cpi->common.current_video_frame,
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cpi->this_frame_target, cpi->projected_frame_size,
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(cpi->projected_frame_size - cpi->this_frame_target),
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(int)cpi->total_target_vs_actual,
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(cpi->oxcf.starting_buffer_level-cpi->bits_off_target),
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(int)cpi->total_actual_bits, cm->base_qindex,
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cpi->active_best_quality, cpi->active_worst_quality,
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cpi->avg_frame_qindex, cpi->zbin_over_quant,
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cm->refresh_golden_frame, cm->refresh_alt_ref_frame,
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cm->frame_type, cpi->gfu_boost,
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cpi->est_max_qcorrection_factor, (int)cpi->bits_left,
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cpi->total_coded_error_left, cpi->tot_recode_hits);
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fclose(f);
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@ -4962,7 +5043,10 @@ static void encode_frame_to_data_rate
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FILE *fmodes = fopen("Modes.stt", "a");
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int i;
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fprintf(fmodes, "%6d:%1d:%1d:%1d ", cpi->common.current_video_frame, cm->frame_type, cm->refresh_golden_frame, cm->refresh_alt_ref_frame);
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fprintf(fmodes, "%6d:%1d:%1d:%1d ",
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cpi->common.current_video_frame,
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cm->frame_type, cm->refresh_golden_frame,
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cm->refresh_alt_ref_frame);
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for (i = 0; i < MAX_MODES; i++)
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fprintf(fmodes, "%5d ", cpi->mode_chosen_counts[i]);
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