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Merge "Removing unused estimate_cq() function."

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Dmitry Kovalev 2014-02-04 16:57:57 -08:00 committed by Gerrit Code Review
commit 8d7cd8e75c
1 changed files with 0 additions and 52 deletions
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52
vp9/encoder/vp9_firstpass.c
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@ -936,58 +936,6 @@ static int estimate_max_q(VP9_COMP *cpi, FIRSTPASS_STATS *fpstats,
return q;
}
// For cq mode estimate a cq level that matches the observed
// complexity and data rate.
static int estimate_cq(VP9_COMP *cpi,
FIRSTPASS_STATS *fpstats,
int section_target_bandwitdh) {
int q;
int num_mbs = cpi->common.MBs;
int target_norm_bits_per_mb;
double section_err = (fpstats->coded_error / fpstats->count);
double err_per_mb = section_err / num_mbs;
double err_correction_factor;
double clip_iiratio;
double clip_iifactor;
target_norm_bits_per_mb = (section_target_bandwitdh < (1 << 20))
? (512 * section_target_bandwitdh) / num_mbs
: 512 * (section_target_bandwitdh / num_mbs);
// II ratio correction factor for clip as a whole
clip_iiratio = cpi->twopass.total_stats.intra_error /
DOUBLE_DIVIDE_CHECK(cpi->twopass.total_stats.coded_error);
clip_iifactor = 1.0 - ((clip_iiratio - 10.0) * 0.025);
if (clip_iifactor < 0.80)
clip_iifactor = 0.80;
// Try and pick a Q that can encode the content at the given rate.
for (q = 0; q < MAXQ; q++) {
int bits_per_mb_at_this_q;
// Error per MB based correction factor
err_correction_factor =
calc_correction_factor(err_per_mb, 100.0, 0.5, 0.90, q) * clip_iifactor;
bits_per_mb_at_this_q =
vp9_rc_bits_per_mb(INTER_FRAME, q, err_correction_factor);
if (bits_per_mb_at_this_q <= target_norm_bits_per_mb)
break;
}
// Clip value to range "best allowed to (worst allowed - 1)"
q = select_cq_level(q);
if (q >= cpi->rc.worst_quality)
q = cpi->rc.worst_quality - 1;
if (q < cpi->rc.best_quality)
q = cpi->rc.best_quality;
return q;
}
extern void vp9_new_framerate(VP9_COMP *cpi, double framerate);
void vp9_init_second_pass(VP9_COMP *cpi) {