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Cleaning up vp9_init_second_pass().

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Change-Id: Ibf360fe0728e07de448e77e3841c49eb25d3ba2d
This commit is contained in:
Dmitry Kovalev 2014-04-16 15:17:53 -07:00
parent fdc198c9de
commit 961594c9c5
1 changed files with 20 additions and 22 deletions
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42
vp9/encoder/vp9_firstpass.c
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@ -938,17 +938,13 @@ extern void vp9_new_framerate(VP9_COMP *cpi, double framerate);
void vp9_init_second_pass(VP9_COMP *cpi) {
SVC *const svc = &cpi->svc;
FIRSTPASS_STATS this_frame;
const FIRSTPASS_STATS *start_pos;
struct twopass_rc *twopass = &cpi->twopass;
const VP9_CONFIG *const oxcf = &cpi->oxcf;
const int is_spatial_svc = (svc->number_spatial_layers > 1) &&
(svc->number_temporal_layers == 1);
struct twopass_rc *const twopass = is_spatial_svc ?
&svc->layer_context[svc->spatial_layer_id].twopass : &cpi->twopass;
double frame_rate;
if (is_spatial_svc) {
twopass = &svc->layer_context[svc->spatial_layer_id].twopass;
}
FIRSTPASS_STATS *stats;
zero_stats(&twopass->total_stats);
zero_stats(&twopass->total_left_stats);
@ -956,11 +952,12 @@ void vp9_init_second_pass(VP9_COMP *cpi) {
if (!twopass->stats_in_end)
return;
twopass->total_stats = *twopass->stats_in_end;
twopass->total_left_stats = twopass->total_stats;
stats = &twopass->total_stats;
frame_rate = 10000000.0 * twopass->total_stats.count /
twopass->total_stats.duration;
*stats = *twopass->stats_in_end;
twopass->total_left_stats = *stats;
frame_rate = 10000000.0 * stats->count / stats->duration;
// Each frame can have a different duration, as the frame rate in the source
// isn't guaranteed to be constant. The frame rate prior to the first frame
// encoded in the second pass is a guess. However, the sum duration is not.
@ -969,14 +966,13 @@ void vp9_init_second_pass(VP9_COMP *cpi) {
if (is_spatial_svc) {
vp9_update_spatial_layer_framerate(cpi, frame_rate);
twopass->bits_left =
(int64_t)(twopass->total_stats.duration *
twopass->bits_left = (int64_t)(stats->duration *
svc->layer_context[svc->spatial_layer_id].target_bandwidth /
10000000.0);
} else {
vp9_new_framerate(cpi, frame_rate);
twopass->bits_left = (int64_t)(twopass->total_stats.duration *
oxcf->target_bandwidth / 10000000.0);
twopass->bits_left = (int64_t)(stats->duration * oxcf->target_bandwidth /
10000000.0);
}
// Calculate a minimum intra value to be used in determining the IIratio
@ -996,8 +992,9 @@ void vp9_init_second_pass(VP9_COMP *cpi) {
// Scan the first pass file and calculate an average Intra / Inter error
// score ratio for the sequence.
{
const FIRSTPASS_STATS *const start_pos = twopass->stats_in;
FIRSTPASS_STATS this_frame;
double sum_iiratio = 0.0;
start_pos = twopass->stats_in;
while (input_stats(twopass, &this_frame) != EOF) {
const double iiratio = this_frame.intra_error /
@ -1006,7 +1003,7 @@ void vp9_init_second_pass(VP9_COMP *cpi) {
}
twopass->avg_iiratio = sum_iiratio /
DOUBLE_DIVIDE_CHECK((double)twopass->total_stats.count);
DOUBLE_DIVIDE_CHECK((double)stats->count);
reset_fpf_position(twopass, start_pos);
}
@ -1014,16 +1011,17 @@ void vp9_init_second_pass(VP9_COMP *cpi) {
// Scan the first pass file and calculate a modified total error based upon
// the bias/power function used to allocate bits.
{
double av_error = twopass->total_stats.ssim_weighted_pred_err /
DOUBLE_DIVIDE_CHECK(twopass->total_stats.count);
const FIRSTPASS_STATS *const start_pos = twopass->stats_in;
FIRSTPASS_STATS this_frame;
const double av_error = stats->ssim_weighted_pred_err /
DOUBLE_DIVIDE_CHECK(stats->count);
start_pos = twopass->stats_in;
twopass->modified_error_total = 0.0;
twopass->modified_error_min =
(av_error * oxcf->two_pass_vbrmin_section) / 100;
(av_error * oxcf->two_pass_vbrmin_section) / 100;
twopass->modified_error_max =
(av_error * oxcf->two_pass_vbrmax_section) / 100;
(av_error * oxcf->two_pass_vbrmax_section) / 100;
while (input_stats(twopass, &this_frame) != EOF) {
twopass->modified_error_total +=