ref: d90b1ee16cb13f3b868efc5b084b33a65000689e
parent: 063d68b7eae642996c7fe7af38709c2f1029f091
parent: 3cc5b92c6516aac4c3f9bf27974bd8543b286251
author: Paul Wilkins <paulwilkins@google.com>
date: Mon Feb 27 12:58:12 EST 2012
Merge "Further code simplification and clean up." into experimental
--- a/vp8/common/onyx.h
+++ b/vp8/common/onyx.h
@@ -53,7 +53,6 @@
typedef enum
{- MODE_REALTIME = 0x0,
MODE_GOODQUALITY = 0x1,
MODE_BESTQUALITY = 0x2,
MODE_FIRSTPASS = 0x3,
@@ -175,10 +174,6 @@
// these parameters aren't to be used in final build don't use!!!
int play_alternate;
int alt_freq;
- int alt_q;
- int key_q;
- int gold_q;
-
int multi_threaded; // how many threads to run the encoder on
int token_partitions; // how many token partitions to create for multi core decoding
--- a/vp8/encoder/firstpass.c
+++ b/vp8/encoder/firstpass.c
@@ -349,34 +349,9 @@
// Max allocation for a single frame based on the max section guidelines passed in and how many bits are left
int max_bits;
- // For CBR we need to also consider buffer fullness.
- // If we are running below the optimal level then we need to gradually tighten up on max_bits.
- if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
- {- double buffer_fullness_ratio = (double)cpi->buffer_level / DOUBLE_DIVIDE_CHECK((double)cpi->oxcf.optimal_buffer_level);
+ // For VBR base this on the bits and frames left plus the two_pass_vbrmax_section rate passed in by the user
+ max_bits = (int)(((double)cpi->twopass.bits_left / (cpi->twopass.total_stats->count - (double)cpi->common.current_video_frame)) * ((double)cpi->oxcf.two_pass_vbrmax_section / 100.0));
- // For CBR base this on the target average bits per frame plus the maximum sedction rate passed in by the user
- max_bits = (int)(cpi->av_per_frame_bandwidth * ((double)cpi->oxcf.two_pass_vbrmax_section / 100.0));
-
- // If our buffer is below the optimum level
- if (buffer_fullness_ratio < 1.0)
- {- // The lower of max_bits / 4 or cpi->av_per_frame_bandwidth / 4.
- int min_max_bits = ((cpi->av_per_frame_bandwidth >> 2) < (max_bits >> 2)) ? cpi->av_per_frame_bandwidth >> 2 : max_bits >> 2;
-
- max_bits = (int)(max_bits * buffer_fullness_ratio);
-
- if (max_bits < min_max_bits)
- max_bits = min_max_bits; // Lowest value we will set ... which should allow the buffer to refil.
- }
- }
- // VBR
- else
- {- // For VBR base this on the bits and frames left plus the two_pass_vbrmax_section rate passed in by the user
- max_bits = (int)(((double)cpi->twopass.bits_left / (cpi->twopass.total_stats->count - (double)cpi->common.current_video_frame)) * ((double)cpi->oxcf.two_pass_vbrmax_section / 100.0));
- }
-
// Trap case where we are out of bits
if (max_bits < 0)
max_bits = 0;
@@ -1828,35 +1803,6 @@
cpi->twopass.gf_decay_rate =
(i > 0) ? (int)(100.0 * (1.0 - decay_accumulator)) / i : 0;
- // When using CBR apply additional buffer related upper limits
- if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
- {- double max_boost;
-
- // For cbr apply buffer related limits
- if (cpi->drop_frames_allowed)
- {- int df_buffer_level = cpi->oxcf.drop_frames_water_mark *
- (cpi->oxcf.optimal_buffer_level / 100);
-
- if (cpi->buffer_level > df_buffer_level)
- max_boost = ((double)((cpi->buffer_level - df_buffer_level) * 2 / 3) * 16.0) / DOUBLE_DIVIDE_CHECK((double)cpi->av_per_frame_bandwidth);
- else
- max_boost = 0.0;
- }
- else if (cpi->buffer_level > 0)
- {- max_boost = ((double)(cpi->buffer_level * 2 / 3) * 16.0) / DOUBLE_DIVIDE_CHECK((double)cpi->av_per_frame_bandwidth);
- }
- else
- {- max_boost = 0.0;
- }
-
- if (boost_score > max_boost)
- boost_score = max_boost;
- }
-
// Dont allow conventional gf too near the next kf
if ((cpi->twopass.frames_to_key - i) < MIN_GF_INTERVAL)
{@@ -2175,13 +2121,6 @@
}
}
- // Apply an additional limit for CBR
- if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
- {- if (cpi->twopass.gf_bits > (cpi->buffer_level >> 1))
- cpi->twopass.gf_bits = cpi->buffer_level >> 1;
- }
-
// Dont allow a negative value for gf_bits
if (gf_bits < 0)
gf_bits = 0;
@@ -2839,51 +2778,6 @@
max_grp_bits = (int64_t)max_bits * (int64_t)cpi->twopass.frames_to_key;
if (cpi->twopass.kf_group_bits > max_grp_bits)
cpi->twopass.kf_group_bits = max_grp_bits;
-
- // Additional special case for CBR if buffer is getting full.
- if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
- {- int opt_buffer_lvl = cpi->oxcf.optimal_buffer_level;
- int buffer_lvl = cpi->buffer_level;
-
- // If the buffer is near or above the optimal and this kf group is
- // not being allocated much then increase the allocation a bit.
- if (buffer_lvl >= opt_buffer_lvl)
- {- int high_water_mark = (opt_buffer_lvl +
- cpi->oxcf.maximum_buffer_size) >> 1;
-
- int64_t av_group_bits;
-
- // Av bits per frame * number of frames
- av_group_bits = (int64_t)cpi->av_per_frame_bandwidth *
- (int64_t)cpi->twopass.frames_to_key;
-
- // We are at or above the maximum.
- if (cpi->buffer_level >= high_water_mark)
- {- int64_t min_group_bits;
-
- min_group_bits = av_group_bits +
- (int64_t)(buffer_lvl -
- high_water_mark);
-
- if (cpi->twopass.kf_group_bits < min_group_bits)
- cpi->twopass.kf_group_bits = min_group_bits;
- }
- // We are above optimal but below the maximum
- else if (cpi->twopass.kf_group_bits < av_group_bits)
- {- int64_t bits_below_av = av_group_bits -
- cpi->twopass.kf_group_bits;
-
- cpi->twopass.kf_group_bits +=
- (int64_t)((double)bits_below_av *
- (double)(buffer_lvl - opt_buffer_lvl) /
- (double)(high_water_mark - opt_buffer_lvl));
- }
- }
- }
}
else
cpi->twopass.kf_group_bits = 0;
@@ -2963,33 +2857,6 @@
// cpi->twopass.section_max_qfactor = 1.0;
}
- // When using CBR apply additional buffer fullness related upper limits
- if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
- {- double max_boost;
-
- if (cpi->drop_frames_allowed)
- {- int df_buffer_level = cpi->oxcf.drop_frames_water_mark * (cpi->oxcf.optimal_buffer_level / 100);
-
- if (cpi->buffer_level > df_buffer_level)
- max_boost = ((double)((cpi->buffer_level - df_buffer_level) * 2 / 3) * 16.0) / DOUBLE_DIVIDE_CHECK((double)cpi->av_per_frame_bandwidth);
- else
- max_boost = 0.0;
- }
- else if (cpi->buffer_level > 0)
- {- max_boost = ((double)(cpi->buffer_level * 2 / 3) * 16.0) / DOUBLE_DIVIDE_CHECK((double)cpi->av_per_frame_bandwidth);
- }
- else
- {- max_boost = 0.0;
- }
-
- if (boost_score > max_boost)
- boost_score = max_boost;
- }
-
// Reset the first pass file position
reset_fpf_position(cpi, start_position);
@@ -3065,13 +2932,6 @@
// Calculate the number of bits to be spent on the key frame
cpi->twopass.kf_bits = (int)((double)kf_boost * ((double)cpi->twopass.kf_group_bits / (double)allocation_chunks));
- // Apply an additional limit for CBR
- if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
- {- if (cpi->twopass.kf_bits > ((3 * cpi->buffer_level) >> 2))
- cpi->twopass.kf_bits = (3 * cpi->buffer_level) >> 2;
- }
-
// 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
@@ -3154,15 +3014,10 @@
//if ( av_bits_per_frame < 0.0 )
// av_bits_per_frame = 0.0
- // CBR... Use the clip average as the target for deciding resample
- if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
- {- bits_per_frame = av_bits_per_frame;
- }
-
// In VBR we want to avoid downsampling in easy section unless we are under extreme pressure
// So use the larger of target bitrate for this sectoion or average bitrate for sequence
- else
+ //else
+ // TBD deprecatae spatial resampling for experminetal
{bits_per_frame = cpi->twopass.kf_group_bits / cpi->twopass.frames_to_key; // This accounts for how hard the section is...
@@ -3197,20 +3052,7 @@
fclose(f);
}
- // The trigger for spatial resampling depends on the various parameters such as whether we are streaming (CBR) or VBR.
- if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
- {- // Trigger resample if we are projected to fall below down sample level or
- // resampled last time and are projected to remain below the up sample level
- if ((projected_buffer_level < (cpi->oxcf.resample_down_water_mark * cpi->oxcf.optimal_buffer_level / 100)) ||
- (last_kf_resampled && (projected_buffer_level < (cpi->oxcf.resample_up_water_mark * cpi->oxcf.optimal_buffer_level / 100))))
- //( ((cpi->buffer_level < (cpi->oxcf.resample_down_water_mark * cpi->oxcf.optimal_buffer_level / 100))) &&
- // ((projected_buffer_level < (cpi->oxcf.resample_up_water_mark * cpi->oxcf.optimal_buffer_level / 100))) ))
- resample_trigger = TRUE;
- else
- resample_trigger = FALSE;
- }
- else
+ // The trigger for spatial resampling depends on the various parameters.
{int64_t clip_bits = (int64_t)(cpi->twopass.total_stats->count * cpi->oxcf.target_bandwidth / DOUBLE_DIVIDE_CHECK((double)cpi->oxcf.frame_rate));
int64_t over_spend = cpi->oxcf.starting_buffer_level - cpi->buffer_level;
--- a/vp8/encoder/onyx_if.c
+++ b/vp8/encoder/onyx_if.c
@@ -1231,8 +1231,6 @@
cpi->oxcf = *oxcf;
- cpi->auto_gold = 1;
- cpi->auto_adjust_gold_quantizer = 1;
cpi->goldfreq = 7;
cm->version = oxcf->Version;
@@ -1320,38 +1318,12 @@
break;
}
-
cpi->oxcf.worst_allowed_q = q_trans[oxcf->worst_allowed_q];
cpi->oxcf.best_allowed_q = q_trans[oxcf->best_allowed_q];
cpi->oxcf.cq_level = q_trans[cpi->oxcf.cq_level];
- if (oxcf->fixed_q >= 0)
- {- if (oxcf->worst_allowed_q < 0)
- cpi->oxcf.fixed_q = q_trans[0];
- else
- cpi->oxcf.fixed_q = q_trans[oxcf->worst_allowed_q];
+ cpi->baseline_gf_interval = DEFAULT_GF_INTERVAL;
- if (oxcf->alt_q < 0)
- cpi->oxcf.alt_q = q_trans[0];
- else
- cpi->oxcf.alt_q = q_trans[oxcf->alt_q];
-
- if (oxcf->key_q < 0)
- cpi->oxcf.key_q = q_trans[0];
- else
- cpi->oxcf.key_q = q_trans[oxcf->key_q];
-
- if (oxcf->gold_q < 0)
- cpi->oxcf.gold_q = q_trans[0];
- else
- cpi->oxcf.gold_q = q_trans[oxcf->gold_q];
-
- }
-
- cpi->baseline_gf_interval =
- cpi->oxcf.alt_freq ? cpi->oxcf.alt_freq : DEFAULT_GF_INTERVAL;
-
cpi->ref_frame_flags = VP8_ALT_FLAG | VP8_GOLD_FLAG | VP8_LAST_FLAG;
//cpi->use_golden_frame_only = 0;
@@ -2434,10 +2406,6 @@
{VP8_COMMON *cm = &cpi->common;
- // Select an interval before next GF or altref
- if (!cpi->auto_gold)
- cpi->frames_till_gf_update_due = cpi->goldfreq;
-
// Update data structure that monitors level of reference to last GF
vpx_memset(cpi->gf_active_flags, 1, (cm->mb_rows * cm->mb_cols));
cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
@@ -2460,10 +2428,6 @@
// Update the Golden frame usage counts.
if (cm->refresh_golden_frame)
{- // Select an interval before next GF
- if (!cpi->auto_gold)
- cpi->frames_till_gf_update_due = cpi->goldfreq;
-
// Update data structure that monitors level of reference to last GF
vpx_memset(cpi->gf_active_flags, 1, (cm->mb_rows * cm->mb_cols));
cpi->gf_active_count = cm->mb_rows * cm->mb_cols;
@@ -3110,37 +3074,6 @@
return;
}
- // Reduce active_worst_allowed_q for CBR if our buffer is getting too full.
- // This has a knock on effect on active best quality as well.
- // For CBR if the buffer reaches its maximum level then we can no longer
- // save up bits for later frames so we might as well use them up
- // on the current frame.
- if ((cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) &&
- (cpi->buffer_level >= cpi->oxcf.optimal_buffer_level) && cpi->buffered_mode)
- {- int Adjustment = cpi->active_worst_quality / 4; // Max adjustment is 1/4
-
- if (Adjustment)
- {- int buff_lvl_step;
-
- if (cpi->buffer_level < cpi->oxcf.maximum_buffer_size)
- {- buff_lvl_step = (cpi->oxcf.maximum_buffer_size - cpi->oxcf.optimal_buffer_level) / Adjustment;
-
- if (buff_lvl_step)
- Adjustment = (cpi->buffer_level - cpi->oxcf.optimal_buffer_level) / buff_lvl_step;
- else
- Adjustment = 0;
- }
-
- cpi->active_worst_quality -= Adjustment;
-
- if(cpi->active_worst_quality < cpi->active_best_quality)
- cpi->active_worst_quality = cpi->active_best_quality;
- }
- }
-
vp8_clear_system_state();
// Set an active best quality and if necessary active worst quality
@@ -3221,24 +3154,6 @@
}
}
- // If CBR and the buffer is as full then it is reasonable to allow
- // higher quality on the frames to prevent bits just going to waste.
- if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
- {- // Note that the use of >= here elliminates the risk of a devide
- // by 0 error in the else if clause
- if (cpi->buffer_level >= cpi->oxcf.maximum_buffer_size)
- cpi->active_best_quality = cpi->best_quality;
-
- else if (cpi->buffer_level > cpi->oxcf.optimal_buffer_level)
- {- int Fraction = ((cpi->buffer_level - cpi->oxcf.optimal_buffer_level) * 128) / (cpi->oxcf.maximum_buffer_size - cpi->oxcf.optimal_buffer_level);
- int min_qadjustment = ((cpi->active_best_quality - cpi->best_quality) * Fraction) / 128;
-
- cpi->active_best_quality -= min_qadjustment;
- }
- }
-
// Clip the active best and worst quality values to limits
if (cpi->active_worst_quality > cpi->worst_quality)
cpi->active_worst_quality = cpi->worst_quality;
@@ -3428,28 +3343,8 @@
if (frame_over_shoot_limit == 0)
frame_over_shoot_limit = 1;
- // Are we are overshooting and up against the limit of active max Q.
- if ((cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) &&
- (Q == cpi->active_worst_quality) &&
- (cpi->active_worst_quality < cpi->worst_quality) &&
- (cpi->projected_frame_size > frame_over_shoot_limit))
- {- int over_size_percent = ((cpi->projected_frame_size - frame_over_shoot_limit) * 100) / frame_over_shoot_limit;
+ active_worst_qchanged = FALSE;
- // If so is there any scope for relaxing it
- while ((cpi->active_worst_quality < cpi->worst_quality) && (over_size_percent > 0))
- {- cpi->active_worst_quality++;
- top_index = cpi->active_worst_quality;
- over_size_percent = (int)(over_size_percent * 0.96); // Assume 1 qstep = about 4% on frame size.
- }
-
- // If we have updated the active max Q do not call vp8_update_rate_correction_factors() this loop.
- active_worst_qchanged = TRUE;
- }
- else
- active_worst_qchanged = FALSE;
-
// Special case handling for forced key frames
if ( (cm->frame_type == KEY_FRAME) && cpi->this_key_frame_forced )
{@@ -3803,19 +3698,6 @@
cpi->ni_tot_qi += Q;
cpi->ni_av_qi = (cpi->ni_tot_qi / cpi->ni_frames);
}
-
-#if 0
-
- // If the frame was massively oversize and we are below optimal buffer level drop next frame
- if ((cpi->drop_frames_allowed) &&
- (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) &&
- (cpi->buffer_level < cpi->oxcf.drop_frames_water_mark * cpi->oxcf.optimal_buffer_level / 100) &&
- (cpi->projected_frame_size > (4 * cpi->this_frame_target)))
- {- cpi->drop_frame = TRUE;
- }
-
-#endif
// Set the count for maximum consequative dropped frames based upon the ratio of
// this frame size to the target average per frame bandwidth.
--- a/vp8/encoder/onyx_int.h
+++ b/vp8/encoder/onyx_int.h
@@ -486,8 +486,6 @@
int compressor_speed;
int interquantizer;
- int auto_gold;
- int auto_adjust_gold_quantizer;
int goldfreq;
int auto_worst_q;
int cpu_used;
--- a/vp8/encoder/ratectrl.c
+++ b/vp8/encoder/ratectrl.c
@@ -232,12 +232,8 @@
//cpi->common.filter_level = 0; // Reset every key frame.
cpi->common.filter_level = cpi->common.base_qindex * 3 / 8 ;
- // Provisional interval before next GF
- if (cpi->auto_gold)
- //cpi->frames_till_gf_update_due = DEFAULT_GF_INTERVAL;
- cpi->frames_till_gf_update_due = cpi->baseline_gf_interval;
- else
- cpi->frames_till_gf_update_due = cpi->goldfreq;
+ // interval before next GF
+ cpi->frames_till_gf_update_due = cpi->baseline_gf_interval;
cpi->common.refresh_golden_frame = TRUE;
cpi->common.refresh_alt_ref_frame = TRUE;
@@ -308,19 +304,9 @@
// Clear down mmx registers to allow floating point in what follows
vp8_clear_system_state(); //__asm emms;
- if (cpi->oxcf.fixed_q >= 0)
- {- int Q = cpi->oxcf.key_q;
+ // New Two pass RC
+ target = cpi->per_frame_bandwidth;
- target = estimate_bits_at_q(INTRA_FRAME, Q, cpi->common.MBs,
- cpi->key_frame_rate_correction_factor);
- }
- else
- {- // New Two pass RC
- target = cpi->per_frame_bandwidth;
- }
-
if (cpi->oxcf.rc_max_intra_bitrate_pct)
{unsigned int max_rate = cpi->per_frame_bandwidth
@@ -337,29 +323,11 @@
// Do the best we can to define the parameteres for the next GF based
// on what information we have available.
-// In this experimental code only two pass is supported.
+//
+// In this experimental code only two pass is supported
+// so we just use the interval determined in the two pass code.
static void calc_gf_params(VP8_COMP *cpi)
{- int Q = (cpi->oxcf.fixed_q < 0) ? cpi->last_q[INTER_FRAME] : cpi->oxcf.fixed_q;
- int Boost = 0;
-
- int gf_frame_useage = 0; // Golden frame useage since last GF
- int tot_mbs = cpi->recent_ref_frame_usage[INTRA_FRAME] +
- cpi->recent_ref_frame_usage[LAST_FRAME] +
- cpi->recent_ref_frame_usage[GOLDEN_FRAME] +
- cpi->recent_ref_frame_usage[ALTREF_FRAME];
-
- int pct_gf_active = (100 * cpi->gf_active_count) / (cpi->common.mb_rows * cpi->common.mb_cols);
-
- // Reset the last boost indicator
- //cpi->last_boost = 100;
-
- if (tot_mbs)
- gf_frame_useage = (cpi->recent_ref_frame_usage[GOLDEN_FRAME] + cpi->recent_ref_frame_usage[ALTREF_FRAME]) * 100 / tot_mbs;
-
- if (pct_gf_active > gf_frame_useage)
- gf_frame_useage = pct_gf_active;
-
// Set the gf interval
cpi->frames_till_gf_update_due = cpi->baseline_gf_interval;
}
@@ -404,112 +372,44 @@
// Note the baseline target data rate for this inter frame.
cpi->inter_frame_target = cpi->this_frame_target;
- // Test to see if we have to drop a frame
- // The auto-drop frame code is only used in buffered mode.
- // In unbufferd mode (eg vide conferencing) the descision to
- // code or drop a frame is made outside the codec in response to real
- // world comms or buffer considerations.
- if (cpi->drop_frames_allowed && cpi->buffered_mode &&
- (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) &&
- ((cpi->common.frame_type != KEY_FRAME))) //|| !cpi->oxcf.allow_spatial_resampling) )
- {- // Check for a buffer underun-crisis in which case we have to drop a frame
- if ((cpi->buffer_level < 0))
- {-#if 0
- FILE *f = fopen("dec.stt", "a");- fprintf(f, "%10d %10d %10d %10d ***** BUFFER EMPTY\n",
- (int) cpi->common.current_video_frame,
- cpi->decimation_factor, cpi->common.horiz_scale,
- (cpi->buffer_level * 100) / cpi->oxcf.optimal_buffer_level);
- fclose(f);
-#endif
- //vpx_log("Decoder: Drop frame due to bandwidth: %d \n",cpi->buffer_level, cpi->av_per_frame_bandwidth);-
- cpi->drop_frame = TRUE;
- }
-
- if (cpi->drop_frame)
- {- // Update the buffer level variable.
- cpi->bits_off_target += cpi->av_per_frame_bandwidth;
-
- // Clip the buffer level at the maximum buffer size
- if (cpi->bits_off_target > cpi->oxcf.maximum_buffer_size)
- cpi->bits_off_target = cpi->oxcf.maximum_buffer_size;
-
- cpi->buffer_level = cpi->bits_off_target;
- }
- else
- cpi->drop_count = 0;
- }
-
// Adjust target frame size for Golden Frames:
- if (cpi->oxcf.error_resilient_mode == 0 &&
- (cpi->frames_till_gf_update_due == 0) && !cpi->drop_frame)
+ if ( cpi->oxcf.error_resilient_mode == 0 &&
+ (cpi->frames_till_gf_update_due == 0) )
{//int Boost = 0;
int Q = (cpi->oxcf.fixed_q < 0) ? cpi->last_q[INTER_FRAME] : cpi->oxcf.fixed_q;
- int gf_frame_useage = 0; // Golden frame useage since last GF
- int tot_mbs = cpi->recent_ref_frame_usage[INTRA_FRAME] +
- cpi->recent_ref_frame_usage[LAST_FRAME] +
- cpi->recent_ref_frame_usage[GOLDEN_FRAME] +
- cpi->recent_ref_frame_usage[ALTREF_FRAME];
+ cpi->common.refresh_golden_frame = TRUE;
- int pct_gf_active = (100 * cpi->gf_active_count) / (cpi->common.mb_rows * cpi->common.mb_cols);
+ calc_gf_params(cpi);
- // Reset the last boost indicator
- //cpi->last_boost = 100;
-
- if (tot_mbs)
- gf_frame_useage = (cpi->recent_ref_frame_usage[GOLDEN_FRAME] + cpi->recent_ref_frame_usage[ALTREF_FRAME]) * 100 / tot_mbs;
-
- if (pct_gf_active > gf_frame_useage)
- gf_frame_useage = pct_gf_active;
-
- // Is a fixed manual GF frequency being used
- if (cpi->auto_gold)
+ // If we are using alternate ref instead of gf then do not apply the boost
+ // It will instead be applied to the altref update
+ // Jims modified boost
+ if (!cpi->source_alt_ref_active)
{- cpi->common.refresh_golden_frame = TRUE;
- }
-
- if (cpi->common.refresh_golden_frame == TRUE)
- {- if (cpi->auto_adjust_gold_quantizer)
+ if (cpi->oxcf.fixed_q < 0)
{- calc_gf_params(cpi);
+ // The spend on the GF is defined in the two pass code
+ // for two pass encodes
+ cpi->this_frame_target = cpi->per_frame_bandwidth;
}
-
- // If we are using alternate ref instead of gf then do not apply the boost
- // It will instead be applied to the altref update
- // Jims modified boost
- if (!cpi->source_alt_ref_active)
- {- if (cpi->oxcf.fixed_q < 0)
- {- // The spend on the GF is defined in the two pass code
- // for two pass encodes
- cpi->this_frame_target = cpi->per_frame_bandwidth;
- }
- else
- cpi->this_frame_target =
- (estimate_bits_at_q(1, Q, cpi->common.MBs, 1.0)
- * cpi->last_boost) / 100;
-
- }
- // If there is an active ARF at this location use the minimum
- // bits on this frame even if it is a contructed arf.
- // The active maximum quantizer insures that an appropriate
- // number of bits will be spent if needed for contstructed ARFs.
else
- {- cpi->this_frame_target = 0;
- }
+ cpi->this_frame_target =
+ (estimate_bits_at_q(1, Q, cpi->common.MBs, 1.0)
+ * cpi->last_boost) / 100;
- cpi->current_gf_interval = cpi->frames_till_gf_update_due;
-
}
+ // If there is an active ARF at this location use the minimum
+ // bits on this frame even if it is a contructed arf.
+ // The active maximum quantizer insures that an appropriate
+ // number of bits will be spent if needed for contstructed ARFs.
+ else
+ {+ cpi->this_frame_target = 0;
+ }
+
+ cpi->current_gf_interval = cpi->frames_till_gf_update_due;
}
}
@@ -624,128 +524,93 @@
{int Q = cpi->active_worst_quality;
+ int i;
+ int last_error = INT_MAX;
+ int target_bits_per_mb;
+ int bits_per_mb_at_this_q;
+ double correction_factor;
+
// Reset Zbin OQ value
cpi->zbin_over_quant = 0;
- if (cpi->oxcf.fixed_q >= 0)
+ // Select the appropriate correction factor based upon type of frame.
+ if (cpi->common.frame_type == KEY_FRAME)
+ correction_factor = cpi->key_frame_rate_correction_factor;
+ else
{- Q = cpi->oxcf.fixed_q;
-
- if (cpi->common.frame_type == KEY_FRAME)
- {- Q = cpi->oxcf.key_q;
- }
- else if (cpi->common.refresh_alt_ref_frame)
- {- Q = cpi->oxcf.alt_q;
- }
- else if (cpi->common.refresh_golden_frame)
- {- Q = cpi->oxcf.gold_q;
- }
-
+ if (cpi->common.refresh_alt_ref_frame || cpi->common.refresh_golden_frame)
+ correction_factor = cpi->gf_rate_correction_factor;
+ else
+ correction_factor = cpi->rate_correction_factor;
}
+
+ // Calculate required scaling factor based on target frame size and size of frame produced using previous Q
+ if (target_bits_per_frame >= (INT_MAX >> BPER_MB_NORMBITS))
+ target_bits_per_mb = (target_bits_per_frame / cpi->common.MBs) << BPER_MB_NORMBITS; // Case where we would overflow int
else
+ target_bits_per_mb = (target_bits_per_frame << BPER_MB_NORMBITS) / cpi->common.MBs;
+
+ i = cpi->active_best_quality;
+
+ do
{- int i;
- int last_error = INT_MAX;
- int target_bits_per_mb;
- int bits_per_mb_at_this_q;
- double correction_factor;
+ bits_per_mb_at_this_q =
+ (int)(.5 + correction_factor *
+ vp8_bits_per_mb(cpi->common.frame_type, i ));
- // Select the appropriate correction factor based upon type of frame.
- if (cpi->common.frame_type == KEY_FRAME)
- correction_factor = cpi->key_frame_rate_correction_factor;
- else
+ if (bits_per_mb_at_this_q <= target_bits_per_mb)
{- if (cpi->common.refresh_alt_ref_frame || cpi->common.refresh_golden_frame)
- correction_factor = cpi->gf_rate_correction_factor;
+ if ((target_bits_per_mb - bits_per_mb_at_this_q) <= last_error)
+ Q = i;
else
- correction_factor = cpi->rate_correction_factor;
- }
+ Q = i - 1;
- // Calculate required scaling factor based on target frame size and size of frame produced using previous Q
- if (target_bits_per_frame >= (INT_MAX >> BPER_MB_NORMBITS))
- target_bits_per_mb = (target_bits_per_frame / cpi->common.MBs) << BPER_MB_NORMBITS; // Case where we would overflow int
+ break;
+ }
else
- target_bits_per_mb = (target_bits_per_frame << BPER_MB_NORMBITS) / cpi->common.MBs;
+ last_error = bits_per_mb_at_this_q - target_bits_per_mb;
+ }
+ while (++i <= cpi->active_worst_quality);
- i = cpi->active_best_quality;
- do
- {- bits_per_mb_at_this_q =
- (int)(.5 + correction_factor *
- vp8_bits_per_mb(cpi->common.frame_type, i ));
+ // If we are at MAXQ then enable Q over-run which seeks to claw back additional bits through things like
+ // the RD multiplier and zero bin size.
+ if (Q >= MAXQ)
+ {+ int zbin_oqmax;
- if (bits_per_mb_at_this_q <= target_bits_per_mb)
- {- if ((target_bits_per_mb - bits_per_mb_at_this_q) <= last_error)
- Q = i;
- else
- Q = i - 1;
+ double Factor = 0.99;
+ double factor_adjustment = 0.01 / 256.0; //(double)ZBIN_OQ_MAX;
- break;
- }
- else
- last_error = bits_per_mb_at_this_q - target_bits_per_mb;
- }
- while (++i <= cpi->active_worst_quality);
+ if (cpi->common.frame_type == KEY_FRAME)
+ zbin_oqmax = 0; //ZBIN_OQ_MAX/16
+ else if (cpi->common.refresh_alt_ref_frame || (cpi->common.refresh_golden_frame && !cpi->source_alt_ref_active))
+ zbin_oqmax = 16;
+ else
+ zbin_oqmax = ZBIN_OQ_MAX;
-
- // If we are at MAXQ then enable Q over-run which seeks to claw back additional bits through things like
- // the RD multiplier and zero bin size.
- if (Q >= MAXQ)
+ // Each incrment in the zbin is assumed to have a fixed effect on bitrate. This is not of course true.
+ // The effect will be highly clip dependent and may well have sudden steps.
+ // The idea here is to acheive higher effective quantizers than the normal maximum by expanding the zero
+ // bin and hence decreasing the number of low magnitude non zero coefficients.
+ while (cpi->zbin_over_quant < zbin_oqmax)
{- int zbin_oqmax;
+ cpi->zbin_over_quant ++;
- double Factor = 0.99;
- double factor_adjustment = 0.01 / 256.0; //(double)ZBIN_OQ_MAX;
+ if (cpi->zbin_over_quant > zbin_oqmax)
+ cpi->zbin_over_quant = zbin_oqmax;
- if (cpi->common.frame_type == KEY_FRAME)
- zbin_oqmax = 0; //ZBIN_OQ_MAX/16
- else if (cpi->common.refresh_alt_ref_frame || (cpi->common.refresh_golden_frame && !cpi->source_alt_ref_active))
- zbin_oqmax = 16;
- else
- zbin_oqmax = ZBIN_OQ_MAX;
+ // Adjust bits_per_mb_at_this_q estimate
+ bits_per_mb_at_this_q = (int)(Factor * bits_per_mb_at_this_q);
+ Factor += factor_adjustment;
- /*{- double Factor = (double)target_bits_per_mb/(double)bits_per_mb_at_this_q;
- double Oq;
+ if (Factor >= 0.999)
+ Factor = 0.999;
- Factor = Factor/1.2683;
-
- Oq = pow( Factor, (1.0/-0.165) );
-
- if ( Oq > zbin_oqmax )
- Oq = zbin_oqmax;
-
- cpi->zbin_over_quant = (int)Oq;
- }*/
-
- // Each incrment in the zbin is assumed to have a fixed effect on bitrate. This is not of course true.
- // The effect will be highly clip dependent and may well have sudden steps.
- // The idea here is to acheive higher effective quantizers than the normal maximum by expanding the zero
- // bin and hence decreasing the number of low magnitude non zero coefficients.
- while (cpi->zbin_over_quant < zbin_oqmax)
- {- cpi->zbin_over_quant ++;
-
- if (cpi->zbin_over_quant > zbin_oqmax)
- cpi->zbin_over_quant = zbin_oqmax;
-
- // Adjust bits_per_mb_at_this_q estimate
- bits_per_mb_at_this_q = (int)(Factor * bits_per_mb_at_this_q);
- Factor += factor_adjustment;
-
- if (Factor >= 0.999)
- Factor = 0.999;
-
- if (bits_per_mb_at_this_q <= target_bits_per_mb) // Break out if we get down to the target rate
- break;
- }
-
+ if (bits_per_mb_at_this_q <= target_bits_per_mb) // Break out if we get down to the target rate
+ break;
}
+
}
return Q;
@@ -840,42 +705,16 @@
}
else
{- // For CBR take buffer fullness into account
- if (cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER)
+ // Stron overshoot limit for constrained quality
+ if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY)
{- if (cpi->buffer_level >= ((cpi->oxcf.optimal_buffer_level + cpi->oxcf.maximum_buffer_size) >> 1))
- {- // Buffer is too full so relax overshoot and tighten undershoot
- *frame_over_shoot_limit = cpi->this_frame_target * 12 / 8;
- *frame_under_shoot_limit = cpi->this_frame_target * 6 / 8;
- }
- else if (cpi->buffer_level <= (cpi->oxcf.optimal_buffer_level >> 1))
- {- // Buffer is too low so relax undershoot and tighten overshoot
- *frame_over_shoot_limit = cpi->this_frame_target * 10 / 8;
- *frame_under_shoot_limit = cpi->this_frame_target * 4 / 8;
- }
- else
- {- *frame_over_shoot_limit = cpi->this_frame_target * 11 / 8;
- *frame_under_shoot_limit = cpi->this_frame_target * 5 / 8;
- }
+ *frame_over_shoot_limit = cpi->this_frame_target * 11 / 8;
+ *frame_under_shoot_limit = cpi->this_frame_target * 2 / 8;
}
- // VBR and CQ mode
- // Note that tighter restrictions here can help quality but hurt encode speed
else
{- // Stron overshoot limit for constrained quality
- if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY)
- {- *frame_over_shoot_limit = cpi->this_frame_target * 11 / 8;
- *frame_under_shoot_limit = cpi->this_frame_target * 2 / 8;
- }
- else
- {- *frame_over_shoot_limit = cpi->this_frame_target * 11 / 8;
- *frame_under_shoot_limit = cpi->this_frame_target * 5 / 8;
- }
+ *frame_over_shoot_limit = cpi->this_frame_target * 11 / 8;
+ *frame_under_shoot_limit = cpi->this_frame_target * 5 / 8;
}
}
}
--- a/vp8/encoder/rdopt.c
+++ b/vp8/encoder/rdopt.c
@@ -2390,13 +2390,6 @@
int dualmode_cost = 0;
int mode_excluded = 0;
- // Experimental debug code.
- // Record of rd values recorded for this MB. -1 indicates not measured
- //all_rds[mode_index] = -1;
- //all_rates[mode_index] = -1;
- //all_dist[mode_index] = -1;
- //intermodecost[mode_index] = -1;
-
// Test best rd so far against threshold for trying this mode.
if (best_rd <= cpi->rd_threshes[mode_index])
continue;
--- a/vp8/vp8_cx_iface.c
+++ b/vp8/vp8_cx_iface.c
@@ -276,18 +276,14 @@
oxcf->resample_up_water_mark = cfg.rc_resize_up_thresh;
oxcf->resample_down_water_mark = cfg.rc_resize_down_thresh;
- if (cfg.rc_end_usage == VPX_VBR)
- {- oxcf->end_usage = USAGE_LOCAL_FILE_PLAYBACK;
- }
- else if (cfg.rc_end_usage == VPX_CBR)
- {- oxcf->end_usage = USAGE_STREAM_FROM_SERVER;
- }
- else if (cfg.rc_end_usage == VPX_CQ)
- {- oxcf->end_usage = USAGE_CONSTRAINED_QUALITY;
- }
+ // VBR only supported for now.
+ // CBR code has been deprectated for experimental phase.
+ // CQ mode not yet tested
+ oxcf->end_usage = USAGE_LOCAL_FILE_PLAYBACK;
+ /*if (cfg.rc_end_usage == VPX_CQ)
+ oxcf->end_usage = USAGE_CONSTRAINED_QUALITY;
+ else
+ oxcf->end_usage = USAGE_LOCAL_FILE_PLAYBACK;*/
oxcf->target_bandwidth = cfg.rc_target_bitrate;
oxcf->rc_max_intra_bitrate_pct = vp8_cfg.rc_max_intra_bitrate_pct;
@@ -599,35 +595,10 @@
unsigned int new_qc;
/* Use best quality mode if no deadline is given. */
- new_qc = MODE_BESTQUALITY;
-
if (deadline)
- {- uint64_t duration_us;
-
- /* Convert duration parameter from stream timebase to microseconds */
- duration_us = (uint64_t)duration * 1000000
- * (uint64_t)ctx->cfg.g_timebase.num
- / (uint64_t)ctx->cfg.g_timebase.den;
-
- /* If the deadline is more that the duration this frame is to be shown,
- * use good quality mode. Otherwise use realtime mode.
- */
- new_qc = (deadline > duration_us) ? MODE_GOODQUALITY : MODE_REALTIME;
- }
-
- switch (ctx->deprecated_mode)
- {- case VP8_BEST_QUALITY_ENCODING:
- new_qc = MODE_BESTQUALITY;
- break;
- case VP8_GOOD_QUALITY_ENCODING:
new_qc = MODE_GOODQUALITY;
- break;
- case VP8_REAL_TIME_ENCODING:
- new_qc = MODE_REALTIME;
- break;
- }
+ else
+ new_qc = MODE_BESTQUALITY;
if (ctx->cfg.g_pass == VPX_RC_FIRST_PASS)
new_qc = MODE_FIRSTPASS;
--
⑨