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Unified Diff: source/libvpx/vp9/encoder/vp9_firstpass.c

Issue 168343002: libvpx: Pull from upstream (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libvpx/
Patch Set: libvpx: Pull from upstream Created 6 years, 10 months ago
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Index: source/libvpx/vp9/encoder/vp9_firstpass.c
===================================================================
--- source/libvpx/vp9/encoder/vp9_firstpass.c (revision 251189)
+++ source/libvpx/vp9/encoder/vp9_firstpass.c (working copy)
@@ -49,6 +49,10 @@
#define DOUBLE_DIVIDE_CHECK(x) ((x) < 0 ? (x) - 0.000001 : (x) + 0.000001)
+#define MIN_KF_BOOST 300
+
+#define DISABLE_RC_LONG_TERM_MEM 0
+
static void swap_yv12(YV12_BUFFER_CONFIG *a, YV12_BUFFER_CONFIG *b) {
YV12_BUFFER_CONFIG temp = *a;
*a = *b;
@@ -129,9 +133,9 @@
return 1;
}
-static void output_stats(const VP9_COMP *cpi,
+static void output_stats(const VP9_COMP *cpi,
struct vpx_codec_pkt_list *pktlist,
- FIRSTPASS_STATS *stats) {
+ FIRSTPASS_STATS *stats) {
struct vpx_codec_cx_pkt pkt;
pkt.kind = VPX_CODEC_STATS_PKT;
pkt.data.twopass_stats.buf = stats;
@@ -262,9 +266,9 @@
// Calculate a modified Error used in distributing bits between easier and
// harder frames.
-static double calculate_modified_err(VP9_COMP *cpi,
- FIRSTPASS_STATS *this_frame) {
- struct twopass_rc *const twopass = &cpi->twopass;
+static double calculate_modified_err(const VP9_COMP *cpi,
+ const FIRSTPASS_STATS *this_frame) {
+ const struct twopass_rc *const twopass = &cpi->twopass;
const FIRSTPASS_STATS *const stats = &twopass->total_stats;
const double av_err = stats->ssim_weighted_pred_err / stats->count;
double modified_error = av_err * pow(this_frame->ssim_weighted_pred_err /
@@ -333,7 +337,7 @@
}
// This function returns the maximum target rate per frame.
-static int frame_max_bits(VP9_COMP *cpi) {
+static int frame_max_bits(const VP9_COMP *cpi) {
int64_t max_bits =
((int64_t)cpi->rc.av_per_frame_bandwidth *
(int64_t)cpi->oxcf.two_pass_vbrmax_section) / 100;
@@ -465,7 +469,7 @@
TileInfo tile;
struct macroblock_plane *const p = x->plane;
struct macroblockd_plane *const pd = xd->plane;
- PICK_MODE_CONTEXT *ctx = &x->sb64_context;
+ const PICK_MODE_CONTEXT *ctx = &x->sb64_context;
int i;
int recon_yoffset, recon_uvoffset;
@@ -491,11 +495,8 @@
int sum_in_vectors = 0;
uint32_t lastmv_as_int = 0;
struct twopass_rc *const twopass = &cpi->twopass;
+ const MV zero_mv = {0, 0};
- int_mv zero_ref_mv;
-
- zero_ref_mv.as_int = 0;
-
vp9_clear_system_state(); // __asm emms;
vp9_setup_src_planes(x, cpi->Source, 0, 0);
@@ -503,10 +504,9 @@
setup_dst_planes(xd, new_yv12, 0, 0);
xd->mi_8x8 = cm->mi_grid_visible;
- // required for vp9_frame_init_quantizer
- xd->mi_8x8[0] = cm->mi;
+ xd->mi_8x8[0] = cm->mi; // required for vp9_frame_init_quantizer
- setup_block_dptrs(&x->e_mbd, cm->subsampling_x, cm->subsampling_y);
+ vp9_setup_block_planes(&x->e_mbd, cm->subsampling_x, cm->subsampling_y);
vp9_frame_init_quantizer(cpi);
@@ -518,15 +518,9 @@
}
x->skip_recode = 0;
+ vp9_init_mv_probs(cm);
+ vp9_initialize_rd_consts(cpi);
- // Initialise the MV cost table to the defaults
- // if( cm->current_video_frame == 0)
- // if ( 0 )
- {
- vp9_init_mv_probs(cm);
- vp9_initialize_rd_consts(cpi);
- }
-
// tiling is ignored in the first pass
vp9_tile_init(&tile, cm, 0, 0);
@@ -550,7 +544,7 @@
// for each macroblock col in image
for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {
int this_error;
- int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row);
+ const int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row);
double error_weight = 1.0;
const BLOCK_SIZE bsize = get_bsize(cm, mb_row, mb_col);
@@ -568,7 +562,7 @@
cm->mi_rows, cm->mi_cols);
if (cpi->oxcf.aq_mode == VARIANCE_AQ) {
- int energy = vp9_block_energy(cpi, x, bsize);
+ const int energy = vp9_block_energy(cpi, x, bsize);
error_weight = vp9_vaq_inv_q_ratio(energy);
}
@@ -594,8 +588,7 @@
// Set up limit values for motion vectors to prevent them extending
// outside the UMV borders.
x->mv_col_min = -((mb_col * 16) + BORDER_MV_PIXELS_B16);
- x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16)
- + BORDER_MV_PIXELS_B16;
+ x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16) + BORDER_MV_PIXELS_B16;
// Other than for the first frame do a motion search
if (cm->current_video_frame > 0) {
@@ -620,7 +613,7 @@
// based search as well.
if (best_ref_mv.as_int) {
tmp_err = INT_MAX;
- first_pass_motion_search(cpi, x, &zero_ref_mv.as_mv, &tmp_mv.as_mv,
+ first_pass_motion_search(cpi, x, &zero_mv, &tmp_mv.as_mv,
&tmp_err);
if (cpi->oxcf.aq_mode == VARIANCE_AQ) {
vp9_clear_system_state(); // __asm emms;
@@ -641,17 +634,15 @@
xd->plane[0].pre[0].buf = gld_yv12->y_buffer + recon_yoffset;
gf_motion_error = zz_motion_search(cpi, x);
- first_pass_motion_search(cpi, x, &zero_ref_mv.as_mv, &tmp_mv.as_mv,
+ first_pass_motion_search(cpi, x, &zero_mv, &tmp_mv.as_mv,
&gf_motion_error);
if (cpi->oxcf.aq_mode == VARIANCE_AQ) {
vp9_clear_system_state(); // __asm emms;
gf_motion_error *= error_weight;
}
- if ((gf_motion_error < motion_error) &&
- (gf_motion_error < this_error)) {
+ if (gf_motion_error < motion_error && gf_motion_error < this_error)
second_ref_count++;
- }
// Reset to last frame as reference buffer
xd->plane[0].pre[0].buf = lst_yv12->y_buffer + recon_yoffset;
@@ -779,13 +770,11 @@
fps.mvr_abs = (double)sum_mvr_abs / mvcount;
fps.MVc = (double)sum_mvc / mvcount;
fps.mvc_abs = (double)sum_mvc_abs / mvcount;
- fps.MVrv = ((double)sum_mvrs - (fps.MVr * fps.MVr / mvcount)) /
- mvcount;
- fps.MVcv = ((double)sum_mvcs - (fps.MVc * fps.MVc / mvcount)) /
- mvcount;
+ fps.MVrv = ((double)sum_mvrs - (fps.MVr * fps.MVr / mvcount)) / mvcount;
+ fps.MVcv = ((double)sum_mvcs - (fps.MVc * fps.MVc / mvcount)) / mvcount;
fps.mv_in_out_count = (double)sum_in_vectors / (mvcount * 2);
fps.new_mv_count = new_mv_count;
- fps.pcnt_motion = (double)mvcount / cpi->common.MBs;
+ fps.pcnt_motion = (double)mvcount / cm->MBs;
} else {
fps.MVr = 0.0;
fps.mvr_abs = 0.0;
@@ -913,13 +902,12 @@
return fclamp(pow(error_term, power_term), 0.05, 5.0);
}
-static int estimate_max_q(VP9_COMP *cpi,
- FIRSTPASS_STATS *fpstats,
- int section_target_bandwitdh) {
+int vp9_twopass_worst_quality(VP9_COMP *cpi, FIRSTPASS_STATS *fpstats,
+ int section_target_bandwitdh) {
int q;
const int num_mbs = cpi->common.MBs;
int target_norm_bits_per_mb;
- RATE_CONTROL *const rc = &cpi->rc;
+ const RATE_CONTROL *const rc = &cpi->rc;
const double section_err = fpstats->coded_error / fpstats->count;
const double err_per_mb = section_err / num_mbs;
@@ -949,58 +937,6 @@
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) {
@@ -1088,12 +1024,12 @@
// This function gives and estimate of how badly we believe
// the prediction quality is decaying from frame to frame.
-static double get_prediction_decay_rate(VP9_COMP *cpi,
- FIRSTPASS_STATS *next_frame) {
+static double get_prediction_decay_rate(const VP9_COMMON *cm,
+ const FIRSTPASS_STATS *next_frame) {
// Look at the observed drop in prediction quality between the last frame
// and the GF buffer (which contains an older frame).
const double mb_sr_err_diff = (next_frame->sr_coded_error -
- next_frame->coded_error) / cpi->common.MBs;
+ next_frame->coded_error) / cm->MBs;
const double second_ref_decay = mb_sr_err_diff <= 512.0
? fclamp(pow(1.0 - (mb_sr_err_diff / 512.0), 0.5), 0.85, 1.0)
: 0.85;
@@ -1104,12 +1040,10 @@
// Function to test for a condition where a complex transition is followed
// by a static section. For example in slide shows where there is a fade
// between slides. This is to help with more optimal kf and gf positioning.
-static int detect_transition_to_still(
- VP9_COMP *cpi,
- int frame_interval,
- int still_interval,
- double loop_decay_rate,
- double last_decay_rate) {
+static int detect_transition_to_still(VP9_COMP *cpi, int frame_interval,
+ int still_interval,
+ double loop_decay_rate,
+ double last_decay_rate) {
int trans_to_still = 0;
// Break clause to detect very still sections after motion
@@ -1121,7 +1055,6 @@
int j;
FIRSTPASS_STATS *position = cpi->twopass.stats_in;
FIRSTPASS_STATS tmp_next_frame;
- double zz_inter;
// Look ahead a few frames to see if static condition
// persists...
@@ -1129,11 +1062,10 @@
if (EOF == input_stats(&cpi->twopass, &tmp_next_frame))
break;
- zz_inter = (tmp_next_frame.pcnt_inter - tmp_next_frame.pcnt_motion);
- if (zz_inter < 0.999)
+ if (tmp_next_frame.pcnt_inter - tmp_next_frame.pcnt_motion < 0.999)
break;
}
- // Reset file position
+
reset_fpf_position(&cpi->twopass, position);
// Only if it does do we signal a transition to still
@@ -1147,14 +1079,14 @@
// This function detects a flash through the high relative pcnt_second_ref
// score in the frame following a flash frame. The offset passed in should
// reflect this
-static int detect_flash(VP9_COMP *cpi, int offset) {
+static int detect_flash(const struct twopass_rc *twopass, int offset) {
FIRSTPASS_STATS next_frame;
int flash_detected = 0;
// Read the frame data.
// The return is FALSE (no flash detected) if not a valid frame
- if (read_frame_stats(&cpi->twopass, &next_frame, offset) != EOF) {
+ if (read_frame_stats(twopass, &next_frame, offset) != EOF) {
// What we are looking for here is a situation where there is a
// brief break in prediction (such as a flash) but subsequent frames
// are reasonably well predicted by an earlier (pre flash) frame.
@@ -1183,16 +1115,15 @@
// Accumulate Motion In/Out of frame stats
*this_frame_mv_in_out = this_frame->mv_in_out_count * motion_pct;
*mv_in_out_accumulator += this_frame->mv_in_out_count * motion_pct;
- *abs_mv_in_out_accumulator +=
- fabs(this_frame->mv_in_out_count * motion_pct);
+ *abs_mv_in_out_accumulator += fabs(this_frame->mv_in_out_count * motion_pct);
// Accumulate a measure of how uniform (or conversely how random)
// the motion field is. (A ratio of absmv / mv)
if (motion_pct > 0.05) {
- double this_frame_mvr_ratio = fabs(this_frame->mvr_abs) /
+ const double this_frame_mvr_ratio = fabs(this_frame->mvr_abs) /
DOUBLE_DIVIDE_CHECK(fabs(this_frame->MVr));
- double this_frame_mvc_ratio = fabs(this_frame->mvc_abs) /
+ const double this_frame_mvc_ratio = fabs(this_frame->mvc_abs) /
DOUBLE_DIVIDE_CHECK(fabs(this_frame->MVc));
*mv_ratio_accumulator += (this_frame_mvr_ratio < this_frame->mvr_abs)
@@ -1235,7 +1166,7 @@
int f_frames, int b_frames,
int *f_boost, int *b_boost) {
FIRSTPASS_STATS this_frame;
-
+ struct twopass_rc *const twopass = &cpi->twopass;
int i;
double boost_score = 0.0;
double mv_ratio_accumulator = 0.0;
@@ -1248,7 +1179,7 @@
// Search forward from the proposed arf/next gf position
for (i = 0; i < f_frames; i++) {
- if (read_frame_stats(&cpi->twopass, &this_frame, (i + offset)) == EOF)
+ if (read_frame_stats(twopass, &this_frame, (i + offset)) == EOF)
break;
// Update the motion related elements to the boost calculation
@@ -1259,12 +1190,12 @@
// We want to discount the flash frame itself and the recovery
// frame that follows as both will have poor scores.
- flash_detected = detect_flash(cpi, (i + offset)) ||
- detect_flash(cpi, (i + offset + 1));
+ flash_detected = detect_flash(twopass, i + offset) ||
+ detect_flash(twopass, i + offset + 1);
// Cumulative effect of prediction quality decay
if (!flash_detected) {
- decay_accumulator *= get_prediction_decay_rate(cpi, &this_frame);
+ decay_accumulator *= get_prediction_decay_rate(&cpi->common, &this_frame);
decay_accumulator = decay_accumulator < MIN_DECAY_FACTOR
? MIN_DECAY_FACTOR : decay_accumulator;
}
@@ -1285,7 +1216,7 @@
// Search backward towards last gf position
for (i = -1; i >= -b_frames; i--) {
- if (read_frame_stats(&cpi->twopass, &this_frame, (i + offset)) == EOF)
+ if (read_frame_stats(twopass, &this_frame, (i + offset)) == EOF)
break;
// Update the motion related elements to the boost calculation
@@ -1296,12 +1227,12 @@
// We want to discount the the flash frame itself and the recovery
// frame that follows as both will have poor scores.
- flash_detected = detect_flash(cpi, (i + offset)) ||
- detect_flash(cpi, (i + offset + 1));
+ flash_detected = detect_flash(twopass, i + offset) ||
+ detect_flash(twopass, i + offset + 1);
// Cumulative effect of prediction quality decay
if (!flash_detected) {
- decay_accumulator *= get_prediction_decay_rate(cpi, &this_frame);
+ decay_accumulator *= get_prediction_decay_rate(&cpi->common, &this_frame);
decay_accumulator = decay_accumulator < MIN_DECAY_FACTOR
? MIN_DECAY_FACTOR : decay_accumulator;
}
@@ -1461,6 +1392,7 @@
static void define_gf_group(VP9_COMP *cpi, FIRSTPASS_STATS *this_frame) {
FIRSTPASS_STATS next_frame = { 0 };
FIRSTPASS_STATS *start_pos;
+ struct twopass_rc *const twopass = &cpi->twopass;
int i;
double boost_score = 0.0;
double old_boost_score = 0.0;
@@ -1479,10 +1411,10 @@
double mv_in_out_accumulator = 0.0;
double abs_mv_in_out_accumulator = 0.0;
double mv_ratio_accumulator_thresh;
- int max_bits = frame_max_bits(cpi); // Max for a single frame
+ const int max_bits = frame_max_bits(cpi); // Max for a single frame
- unsigned int allow_alt_ref =
- cpi->oxcf.play_alternate && cpi->oxcf.lag_in_frames;
+ unsigned int allow_alt_ref = cpi->oxcf.play_alternate &&
+ cpi->oxcf.lag_in_frames;
int f_boost = 0;
int b_boost = 0;
@@ -1490,11 +1422,11 @@
int active_max_gf_interval;
RATE_CONTROL *const rc = &cpi->rc;
- cpi->twopass.gf_group_bits = 0;
+ twopass->gf_group_bits = 0;
vp9_clear_system_state(); // __asm emms;
- start_pos = cpi->twopass.stats_in;
+ start_pos = twopass->stats_in;
// Load stats for the current frame.
mod_frame_err = calculate_modified_err(cpi, this_frame);
@@ -1525,20 +1457,19 @@
active_max_gf_interval = rc->max_gf_interval;
i = 0;
- while ((i < cpi->twopass.static_scene_max_gf_interval) &&
- (i < rc->frames_to_key)) {
+ while (i < twopass->static_scene_max_gf_interval && i < rc->frames_to_key) {
i++; // Increment the loop counter
// Accumulate error score of frames in this gf group
mod_frame_err = calculate_modified_err(cpi, this_frame);
gf_group_err += mod_frame_err;
- if (EOF == input_stats(&cpi->twopass, &next_frame))
+ if (EOF == input_stats(twopass, &next_frame))
break;
// Test for the case where there is a brief flash but the prediction
// quality back to an earlier frame is then restored.
- flash_detected = detect_flash(cpi, 0);
+ flash_detected = detect_flash(twopass, 0);
// Update the motion related elements to the boost calculation
accumulate_frame_motion_stats(&next_frame,
@@ -1549,14 +1480,14 @@
// Cumulative effect of prediction quality decay
if (!flash_detected) {
last_loop_decay_rate = loop_decay_rate;
- loop_decay_rate = get_prediction_decay_rate(cpi, &next_frame);
+ loop_decay_rate = get_prediction_decay_rate(&cpi->common, &next_frame);
decay_accumulator = decay_accumulator * loop_decay_rate;
// Monitor for static sections.
if ((next_frame.pcnt_inter - next_frame.pcnt_motion) <
zero_motion_accumulator) {
- zero_motion_accumulator =
- (next_frame.pcnt_inter - next_frame.pcnt_motion);
+ zero_motion_accumulator = next_frame.pcnt_inter -
+ next_frame.pcnt_motion;
}
// Break clause to detect very still sections after motion
@@ -1594,14 +1525,14 @@
old_boost_score = boost_score;
}
- cpi->twopass.gf_zeromotion_pct = (int)(zero_motion_accumulator * 1000.0);
+ twopass->gf_zeromotion_pct = (int)(zero_motion_accumulator * 1000.0);
// Don't allow a gf too near the next kf
if ((rc->frames_to_key - i) < MIN_GF_INTERVAL) {
while (i < (rc->frames_to_key + !rc->next_key_frame_forced)) {
i++;
- if (EOF == input_stats(&cpi->twopass, this_frame))
+ if (EOF == input_stats(twopass, this_frame))
break;
if (i < rc->frames_to_key) {
@@ -1635,13 +1566,7 @@
(i >= MIN_GF_INTERVAL) &&
// for real scene cuts (not forced kfs) dont allow arf very near kf.
(rc->next_key_frame_forced ||
- (i <= (rc->frames_to_key - MIN_GF_INTERVAL))) &&
- ((next_frame.pcnt_inter > 0.75) ||
- (next_frame.pcnt_second_ref > 0.5)) &&
- ((mv_in_out_accumulator / (double)i > -0.2) ||
- (mv_in_out_accumulator > -2.0)) &&
- (boost_score > 100)) {
-
+ (i <= (rc->frames_to_key - MIN_GF_INTERVAL)))) {
// Alternative boost calculation for alt ref
rc->gfu_boost = calc_arf_boost(cpi, 0, (i - 1), (i - 1), &f_boost,
&b_boost);
@@ -1705,27 +1630,23 @@
#endif
// Calculate the bits to be allocated to the group as a whole
- if ((cpi->twopass.kf_group_bits > 0) &&
- (cpi->twopass.kf_group_error_left > 0)) {
- cpi->twopass.gf_group_bits =
- (int64_t)(cpi->twopass.kf_group_bits *
+ if (twopass->kf_group_bits > 0 && twopass->kf_group_error_left > 0) {
+ twopass->gf_group_bits = (int64_t)(cpi->twopass.kf_group_bits *
(gf_group_err / cpi->twopass.kf_group_error_left));
} else {
- cpi->twopass.gf_group_bits = 0;
+ twopass->gf_group_bits = 0;
}
- cpi->twopass.gf_group_bits =
- (cpi->twopass.gf_group_bits < 0)
- ? 0
- : (cpi->twopass.gf_group_bits > cpi->twopass.kf_group_bits)
- ? cpi->twopass.kf_group_bits : cpi->twopass.gf_group_bits;
+ twopass->gf_group_bits = (twopass->gf_group_bits < 0) ?
+ 0 : (twopass->gf_group_bits > twopass->kf_group_bits) ?
+ twopass->kf_group_bits : twopass->gf_group_bits;
// Clip cpi->twopass.gf_group_bits based on user supplied data rate
// variability limit (cpi->oxcf.two_pass_vbrmax_section)
- if (cpi->twopass.gf_group_bits > (int64_t)max_bits * rc->baseline_gf_interval)
- cpi->twopass.gf_group_bits = (int64_t)max_bits * rc->baseline_gf_interval;
+ if (twopass->gf_group_bits > (int64_t)max_bits * rc->baseline_gf_interval)
+ twopass->gf_group_bits = (int64_t)max_bits * rc->baseline_gf_interval;
// Reset the file position
- reset_fpf_position(&cpi->twopass, start_pos);
+ reset_fpf_position(twopass, start_pos);
// Assign bits to the arf or gf.
for (i = 0; i <= (rc->source_alt_ref_pending &&
@@ -1753,17 +1674,17 @@
// Calculate the number of bits to be spent on the gf or arf based on
// the boost number
- gf_bits = (int)((double)boost * (cpi->twopass.gf_group_bits /
- (double)allocation_chunks));
+ gf_bits = (int)((double)boost * (twopass->gf_group_bits /
+ (double)allocation_chunks));
// If the frame that is to be boosted is simpler than the average for
// the gf/arf group then use an alternative calculation
// based on the error score of the frame itself
if (rc->baseline_gf_interval < 1 ||
mod_frame_err < gf_group_err / (double)rc->baseline_gf_interval) {
- double alt_gf_grp_bits = (double)cpi->twopass.kf_group_bits *
+ double alt_gf_grp_bits = (double)twopass->kf_group_bits *
(mod_frame_err * (double)rc->baseline_gf_interval) /
- DOUBLE_DIVIDE_CHECK(cpi->twopass.kf_group_error_left);
+ DOUBLE_DIVIDE_CHECK(twopass->kf_group_error_left);
int alt_gf_bits = (int)((double)boost * (alt_gf_grp_bits /
(double)allocation_chunks));
@@ -1774,9 +1695,9 @@
// If it is harder than other frames in the group make sure it at
// least receives an allocation in keeping with its relative error
// score, otherwise it may be worse off than an "un-boosted" frame.
- int alt_gf_bits = (int)((double)cpi->twopass.kf_group_bits *
+ int alt_gf_bits = (int)((double)twopass->kf_group_bits *
mod_frame_err /
- DOUBLE_DIVIDE_CHECK(cpi->twopass.kf_group_error_left));
+ DOUBLE_DIVIDE_CHECK(twopass->kf_group_error_left));
if (alt_gf_bits > gf_bits)
gf_bits = alt_gf_bits;
@@ -1787,23 +1708,23 @@
gf_bits = 0;
if (i == 0) {
- cpi->twopass.gf_bits = gf_bits;
+ twopass->gf_bits = gf_bits;
}
if (i == 1 ||
(!rc->source_alt_ref_pending &&
- (cpi->common.frame_type != KEY_FRAME))) {
+ cpi->common.frame_type != KEY_FRAME)) {
// Per frame bit target for this frame
- rc->per_frame_bandwidth = gf_bits;
+ vp9_rc_set_frame_target(cpi, gf_bits);
}
}
{
// Adjust KF group bits and error remaining
- cpi->twopass.kf_group_error_left -= (int64_t)gf_group_err;
- cpi->twopass.kf_group_bits -= cpi->twopass.gf_group_bits;
+ twopass->kf_group_error_left -= (int64_t)gf_group_err;
+ twopass->kf_group_bits -= twopass->gf_group_bits;
- if (cpi->twopass.kf_group_bits < 0)
- cpi->twopass.kf_group_bits = 0;
+ if (twopass->kf_group_bits < 0)
+ twopass->kf_group_bits = 0;
// If this is an arf update we want to remove the score for the
// overlay frame at the end which will usually be very cheap to code.
@@ -1812,18 +1733,18 @@
// For normal GFs remove the score for the GF itself unless this is
// also a key frame in which case it has already been accounted for.
if (rc->source_alt_ref_pending) {
- cpi->twopass.gf_group_error_left = (int64_t)gf_group_err - mod_frame_err;
+ twopass->gf_group_error_left = (int64_t)gf_group_err - mod_frame_err;
} else if (cpi->common.frame_type != KEY_FRAME) {
- cpi->twopass.gf_group_error_left = (int64_t)(gf_group_err
+ twopass->gf_group_error_left = (int64_t)(gf_group_err
- gf_first_frame_err);
} else {
- cpi->twopass.gf_group_error_left = (int64_t)gf_group_err;
+ twopass->gf_group_error_left = (int64_t)gf_group_err;
}
- cpi->twopass.gf_group_bits -= cpi->twopass.gf_bits;
+ twopass->gf_group_bits -= twopass->gf_bits;
- if (cpi->twopass.gf_group_bits < 0)
- cpi->twopass.gf_group_bits = 0;
+ if (twopass->gf_group_bits < 0)
+ twopass->gf_group_bits = 0;
// This condition could fail if there are two kfs very close together
// despite (MIN_GF_INTERVAL) and would cause a divide by 0 in the
@@ -1832,12 +1753,10 @@
const int boost = rc->source_alt_ref_pending ? b_boost : rc->gfu_boost;
if (boost >= 150) {
- int alt_extra_bits;
- int pct_extra = (boost - 100) / 50;
- pct_extra = (pct_extra > 20) ? 20 : pct_extra;
-
- alt_extra_bits = (int)((cpi->twopass.gf_group_bits * pct_extra) / 100);
- cpi->twopass.gf_group_bits -= alt_extra_bits;
+ const int pct_extra = MIN(20, (boost - 100) / 50);
+ const int alt_extra_bits = (int)((twopass->gf_group_bits * pct_extra) /
+ 100);
+ twopass->gf_group_bits -= alt_extra_bits;
}
}
}
@@ -1846,20 +1765,20 @@
FIRSTPASS_STATS sectionstats;
zero_stats(&sectionstats);
- reset_fpf_position(&cpi->twopass, start_pos);
+ reset_fpf_position(twopass, start_pos);
for (i = 0; i < rc->baseline_gf_interval; i++) {
- input_stats(&cpi->twopass, &next_frame);
+ input_stats(twopass, &next_frame);
accumulate_stats(&sectionstats, &next_frame);
}
avg_stats(&sectionstats);
- cpi->twopass.section_intra_rating = (int)
+ twopass->section_intra_rating = (int)
(sectionstats.intra_error /
DOUBLE_DIVIDE_CHECK(sectionstats.coded_error));
- reset_fpf_position(&cpi->twopass, start_pos);
+ reset_fpf_position(twopass, start_pos);
}
}
@@ -1895,18 +1814,13 @@
cpi->twopass.gf_group_bits = 0;
// Per frame bit target for this frame.
- cpi->rc.per_frame_bandwidth = target_frame_size;
+ vp9_rc_set_frame_target(cpi, target_frame_size);
}
-static int test_for_kf_one_pass(VP9_COMP *cpi) {
- // Placeholder function for auto key frame
- return 0;
-}
-
static int test_candidate_kf(VP9_COMP *cpi,
- FIRSTPASS_STATS *last_frame,
- FIRSTPASS_STATS *this_frame,
- FIRSTPASS_STATS *next_frame) {
+ const FIRSTPASS_STATS *last_frame,
+ const FIRSTPASS_STATS *this_frame,
+ const FIRSTPASS_STATS *next_frame) {
int is_viable_kf = 0;
// Does the frame satisfy the primary criteria of a key frame
@@ -2006,8 +1920,6 @@
double kf_mod_err = 0.0;
double kf_group_err = 0.0;
- double kf_group_intra_err = 0.0;
- double kf_group_coded_err = 0.0;
double recent_loop_decay[8] = {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0};
RATE_CONTROL *const rc = &cpi->rc;
@@ -2045,12 +1957,6 @@
// Accumulate kf group error
kf_group_err += calculate_modified_err(cpi, this_frame);
- // These figures keep intra and coded error counts for all frames including
- // key frames in the group. The effect of the key frame itself can be
- // subtracted out using the first_frame data collected above.
- kf_group_intra_err += this_frame->intra_error;
- kf_group_coded_err += this_frame->coded_error;
-
// load a the next frame's stats
last_frame = *this_frame;
input_stats(twopass, this_frame);
@@ -2064,7 +1970,7 @@
// How fast is prediction quality decaying
- loop_decay_rate = get_prediction_decay_rate(cpi, &next_frame);
+ loop_decay_rate = get_prediction_decay_rate(&cpi->common, &next_frame);
// We want to know something about the recent past... rather than
// as used elsewhere where we are concened with decay in prediction
@@ -2110,17 +2016,13 @@
reset_fpf_position(twopass, start_position);
kf_group_err = 0;
- kf_group_intra_err = 0;
- kf_group_coded_err = 0;
// Rescan to get the correct error data for the forced kf group
for (i = 0; i < rc->frames_to_key; i++) {
// Accumulate kf group errors
kf_group_err += calculate_modified_err(cpi, &tmp_frame);
- kf_group_intra_err += tmp_frame.intra_error;
- kf_group_coded_err += tmp_frame.coded_error;
- // Load a the next frame's stats
+ // Load the next frame's stats.
input_stats(twopass, &tmp_frame);
}
rc->next_key_frame_forced = 1;
@@ -2134,12 +2036,6 @@
if (twopass->stats_in >= twopass->stats_in_end) {
// Accumulate kf group error
kf_group_err += calculate_modified_err(cpi, this_frame);
-
- // These figures keep intra and coded error counts for all frames including
- // key frames in the group. The effect of the key frame itself can be
- // subtracted out using the first_frame data collected above.
- kf_group_intra_err += this_frame->intra_error;
- kf_group_coded_err += this_frame->coded_error;
}
// Calculate the number of bits that should be assigned to the kf group.
@@ -2169,7 +2065,6 @@
// frames use inter blocks.
decay_accumulator = 1.0;
boost_score = 0.0;
- loop_decay_rate = 1.00; // Starting decay rate
// Scan through the kf group collating various stats.
for (i = 0; i < rc->frames_to_key; i++) {
@@ -2198,8 +2093,8 @@
r = RMAX;
// How fast is prediction quality decaying
- if (!detect_flash(cpi, 0)) {
- loop_decay_rate = get_prediction_decay_rate(cpi, &next_frame);
+ if (!detect_flash(twopass, 0)) {
+ loop_decay_rate = get_prediction_decay_rate(&cpi->common, &next_frame);
decay_accumulator *= loop_decay_rate;
decay_accumulator = decay_accumulator < MIN_DECAY_FACTOR
? MIN_DECAY_FACTOR : decay_accumulator;
@@ -2238,8 +2133,8 @@
if (kf_boost < (rc->frames_to_key * 3))
kf_boost = (rc->frames_to_key * 3);
- if (kf_boost < 300) // Min KF boost
- kf_boost = 300;
+ if (kf_boost < MIN_KF_BOOST)
+ kf_boost = MIN_KF_BOOST;
// Make a note of baseline boost and the zero motion
// accumulator value for use elsewhere.
@@ -2248,7 +2143,7 @@
// We do three calculations for kf size.
// The first is based on the error score for the whole kf group.
- // The second (optionaly) on the key frames own error if this is
+ // The second (optionally) on the key frames own error if this is
// smaller than the average for the group.
// The final one insures that the frame receives at least the
// allocation it would have received based on its own error score vs
@@ -2279,8 +2174,8 @@
((double)twopass->kf_group_bits / allocation_chunks));
// If the key frame is actually easier than the average for the
- // kf group (which does sometimes happen... eg a blank intro frame)
- // Then use an alternate calculation based on the kf error score
+ // kf group (which does sometimes happen, e.g. a blank intro frame)
+ // then use an alternate calculation based on the kf error score
// which should give a smaller key frame.
if (kf_mod_err < kf_group_err / rc->frames_to_key) {
double alt_kf_grp_bits = ((double)twopass->bits_left *
@@ -2303,13 +2198,9 @@
twopass->kf_bits = alt_kf_bits;
}
}
-
twopass->kf_group_bits -= twopass->kf_bits;
-
- // Peer frame bit target for this frame
- rc->per_frame_bandwidth = twopass->kf_bits;
- // Convert to a per second bitrate
- cpi->target_bandwidth = (int)(twopass->kf_bits * cpi->output_framerate);
+ // Per frame bit target for this frame.
+ vp9_rc_set_frame_target(cpi, twopass->kf_bits);
}
// Note the total error score of the kf group minus the key frame itself
@@ -2321,64 +2212,10 @@
twopass->modified_error_left -= kf_group_err;
}
-void vp9_get_svc_params(VP9_COMP *cpi) {
+void vp9_rc_get_first_pass_params(VP9_COMP *cpi) {
VP9_COMMON *const cm = &cpi->common;
- if ((cm->current_video_frame == 0) ||
- (cm->frame_flags & FRAMEFLAGS_KEY) ||
- (cpi->oxcf.auto_key && (cpi->rc.frames_since_key %
- cpi->key_frame_frequency == 0))) {
- cm->frame_type = KEY_FRAME;
- } else {
- cm->frame_type = INTER_FRAME;
- }
- cpi->rc.frames_till_gf_update_due = INT_MAX;
- cpi->rc.baseline_gf_interval = INT_MAX;
-}
-
-void vp9_get_one_pass_params(VP9_COMP *cpi) {
- VP9_COMMON *const cm = &cpi->common;
if (!cpi->refresh_alt_ref_frame &&
(cm->current_video_frame == 0 ||
- cm->frame_flags & FRAMEFLAGS_KEY ||
- cpi->rc.frames_to_key == 0 ||
- (cpi->oxcf.auto_key && test_for_kf_one_pass(cpi)))) {
- cm->frame_type = KEY_FRAME;
- cpi->rc.this_key_frame_forced = cm->current_video_frame != 0 &&
- cpi->rc.frames_to_key == 0;
- cpi->rc.frames_to_key = cpi->key_frame_frequency;
- cpi->rc.kf_boost = 300;
- } else {
- cm->frame_type = INTER_FRAME;
- }
- if (cpi->rc.frames_till_gf_update_due == 0) {
- cpi->rc.frames_till_gf_update_due = cpi->rc.baseline_gf_interval;
- cpi->refresh_golden_frame = 1;
- }
-}
-
-void vp9_get_one_pass_cbr_params(VP9_COMP *cpi) {
- VP9_COMMON *const cm = &cpi->common;
- if ((cm->current_video_frame == 0 ||
- cm->frame_flags & FRAMEFLAGS_KEY ||
- cpi->rc.frames_to_key == 0 ||
- (cpi->oxcf.auto_key && test_for_kf_one_pass(cpi)))) {
- cm->frame_type = KEY_FRAME;
- cpi->rc.this_key_frame_forced = cm->current_video_frame != 0 &&
- cpi->rc.frames_to_key == 0;
- cpi->rc.frames_to_key = cpi->key_frame_frequency;
- cpi->rc.kf_boost = 300;
- } else {
- cm->frame_type = INTER_FRAME;
- }
- // Don't use gf_update by default in CBR mode.
- cpi->rc.frames_till_gf_update_due = INT_MAX;
- cpi->rc.baseline_gf_interval = INT_MAX;
-}
-
-void vp9_get_first_pass_params(VP9_COMP *cpi) {
- VP9_COMMON *const cm = &cpi->common;
- if (!cpi->refresh_alt_ref_frame &&
- (cm->current_video_frame == 0 ||
cm->frame_flags & FRAMEFLAGS_KEY)) {
cm->frame_type = KEY_FRAME;
} else {
@@ -2388,38 +2225,39 @@
cpi->rc.frames_to_key = INT_MAX;
}
-void vp9_get_second_pass_params(VP9_COMP *cpi) {
- int tmp_q;
- int frames_left = (int)(cpi->twopass.total_stats.count -
- cpi->common.current_video_frame);
-
+void vp9_rc_get_second_pass_params(VP9_COMP *cpi) {
+ VP9_COMMON *const cm = &cpi->common;
+ RATE_CONTROL *const rc = &cpi->rc;
+ struct twopass_rc *const twopass = &cpi->twopass;
+ const int frames_left = (int)(twopass->total_stats.count -
+ cm->current_video_frame);
FIRSTPASS_STATS this_frame;
FIRSTPASS_STATS this_frame_copy;
- RATE_CONTROL *rc = &cpi->rc;
double this_frame_intra_error;
double this_frame_coded_error;
+ int target;
+ if (!twopass->stats_in)
+ return;
+
if (cpi->refresh_alt_ref_frame) {
- cpi->common.frame_type = INTER_FRAME;
+ cm->frame_type = INTER_FRAME;
+ vp9_rc_set_frame_target(cpi, twopass->gf_bits);
return;
}
- if (!cpi->twopass.stats_in)
- return;
vp9_clear_system_state();
if (cpi->oxcf.end_usage == USAGE_CONSTANT_QUALITY) {
- rc->active_worst_quality = cpi->oxcf.cq_level;
- } else if (cpi->common.current_video_frame == 0) {
+ twopass->active_worst_quality = cpi->oxcf.cq_level;
+ } else if (cm->current_video_frame == 0) {
// Special case code for first frame.
- int section_target_bandwidth =
- (int)(cpi->twopass.bits_left / frames_left);
-
- tmp_q = estimate_max_q(cpi, &cpi->twopass.total_left_stats,
- section_target_bandwidth);
-
- rc->active_worst_quality = tmp_q;
+ const int section_target_bandwidth = (int)(twopass->bits_left /
+ frames_left);
+ const int tmp_q = vp9_twopass_worst_quality(cpi, &twopass->total_left_stats,
+ section_target_bandwidth);
+ twopass->active_worst_quality = tmp_q;
rc->ni_av_qi = tmp_q;
rc->avg_q = vp9_convert_qindex_to_q(tmp_q);
@@ -2431,7 +2269,7 @@
// adjust_maxq_qrange(cpi);
}
vp9_zero(this_frame);
- if (EOF == input_stats(&cpi->twopass, &this_frame))
+ if (EOF == input_stats(twopass, &this_frame))
return;
this_frame_intra_error = this_frame.intra_error;
@@ -2439,12 +2277,12 @@
// keyframe and section processing !
if (rc->frames_to_key == 0 ||
- (cpi->common.frame_flags & FRAMEFLAGS_KEY)) {
+ (cm->frame_flags & FRAMEFLAGS_KEY)) {
// Define next KF group and assign bits to it
this_frame_copy = this_frame;
find_next_key_frame(cpi, &this_frame_copy);
} else {
- cpi->common.frame_type = INTER_FRAME;
+ cm->frame_type = INTER_FRAME;
}
// Is this a GF / ARF (Note that a KF is always also a GF)
@@ -2462,13 +2300,13 @@
}
#endif
- if (cpi->twopass.gf_zeromotion_pct > 995) {
+ if (twopass->gf_zeromotion_pct > 995) {
// As long as max_thresh for encode breakout is small enough, it is ok
- // to enable it for no-show frame, i.e. set enable_encode_breakout to 2.
- if (!cpi->common.show_frame)
- cpi->enable_encode_breakout = 0;
+ // to enable it for show frame, i.e. set allow_encode_breakout to 2.
+ if (!cm->show_frame)
+ cpi->allow_encode_breakout = ENCODE_BREAKOUT_DISABLED;
else
- cpi->enable_encode_breakout = 2;
+ cpi->allow_encode_breakout = ENCODE_BREAKOUT_LIMITED;
}
rc->frames_till_gf_update_due = rc->baseline_gf_interval;
@@ -2481,24 +2319,24 @@
}
// Keep a globally available copy of this and the next frame's iiratio.
- cpi->twopass.this_iiratio = (int)(this_frame_intra_error /
+ twopass->this_iiratio = (int)(this_frame_intra_error /
DOUBLE_DIVIDE_CHECK(this_frame_coded_error));
{
FIRSTPASS_STATS next_frame;
- if (lookup_next_frame_stats(&cpi->twopass, &next_frame) != EOF) {
- cpi->twopass.next_iiratio = (int)(next_frame.intra_error /
- DOUBLE_DIVIDE_CHECK(next_frame.coded_error));
+ if (lookup_next_frame_stats(twopass, &next_frame) != EOF) {
+ twopass->next_iiratio = (int)(next_frame.intra_error /
+ DOUBLE_DIVIDE_CHECK(next_frame.coded_error));
}
}
- // Set nominal per second bandwidth for this frame
- cpi->target_bandwidth = (int)(rc->per_frame_bandwidth *
- cpi->output_framerate);
- if (cpi->target_bandwidth < 0)
- cpi->target_bandwidth = 0;
+ if (cpi->common.frame_type == KEY_FRAME)
+ target = vp9_rc_clamp_iframe_target_size(cpi, rc->this_frame_target);
+ else
+ target = vp9_rc_clamp_pframe_target_size(cpi, rc->this_frame_target);
+ vp9_rc_set_frame_target(cpi, target);
// Update the total stats remaining structure
- subtract_stats(&cpi->twopass.total_left_stats, &this_frame);
+ subtract_stats(&twopass->total_left_stats, &this_frame);
}
void vp9_twopass_postencode_update(VP9_COMP *cpi, uint64_t bytes_used) {
@@ -2506,5 +2344,18 @@
cpi->twopass.bits_left -= cpi->rc.this_frame_target;
#else
cpi->twopass.bits_left -= 8 * bytes_used;
+ // Update bits left to the kf and gf groups to account for overshoot or
+ // undershoot on these frames
+ if (cm->frame_type == KEY_FRAME) {
+ cpi->twopass.kf_group_bits += cpi->rc.this_frame_target -
+ cpi->rc.projected_frame_size;
+
+ cpi->twopass.kf_group_bits = MAX(cpi->twopass.kf_group_bits, 0);
+ } else if (cpi->refresh_golden_frame || cpi->refresh_alt_ref_frame) {
+ cpi->twopass.gf_group_bits += cpi->rc.this_frame_target -
+ cpi->rc.projected_frame_size;
+
+ cpi->twopass.gf_group_bits = MAX(cpi->twopass.gf_group_bits, 0);
+ }
#endif
}
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