ref: 07fbd70e386cb31ff1cb9faea63502858125c7b9
parent: 069e2458a639ed696bfc277c83188df6c2da4757
parent: 78664081d181f4f752ea9ff705e8eeb6949dc151
author: Marco Paniconi <marpan@google.com>
date: Thu Mar 13 10:49:15 EDT 2014
Merge "Move svc layer_context to separate file."
--- a/vp9/encoder/vp9_onyx_if.c
+++ b/vp9/encoder/vp9_onyx_if.c
@@ -40,6 +40,7 @@
#include "vp9/encoder/vp9_temporal_filter.h"
#include "vp9/encoder/vp9_vaq.h"
#include "vp9/encoder/vp9_resize.h"
+#include "vp9/encoder/vp9_svc_layercontext.h"
void vp9_coef_tree_initialize();
@@ -1109,10 +1110,9 @@
}
}
-
// Table that converts 0-63 Q range values passed in outside to the Qindex
// range used internally.
-static const int q_trans[] = {+const int q_trans[] = {0, 4, 8, 12, 16, 20, 24, 28,
32, 36, 40, 44, 48, 52, 56, 60,
64, 68, 72, 76, 80, 84, 88, 92,
@@ -1181,7 +1181,7 @@
rc->max_gf_interval = rc->static_scene_max_gf_interval;
}
-static int64_t rescale(int64_t val, int64_t num, int denom) {+int64_t vp9_rescale(int64_t val, int64_t num, int denom) {int64_t llnum = num;
int64_t llden = denom;
int64_t llval = val;
@@ -1189,124 +1189,6 @@
return (llval * llnum / llden);
}
-// Initialize layer context data from init_config().
-static void init_layer_context(VP9_COMP *const cpi) {- const VP9_CONFIG *const oxcf = &cpi->oxcf;
- int temporal_layer = 0;
- cpi->svc.spatial_layer_id = 0;
- cpi->svc.temporal_layer_id = 0;
- for (temporal_layer = 0; temporal_layer < cpi->svc.number_temporal_layers;
- ++temporal_layer) {- LAYER_CONTEXT *const lc = &cpi->svc.layer_context[temporal_layer];
- RATE_CONTROL *const lrc = &lc->rc;
- lrc->avg_frame_qindex[INTER_FRAME] = q_trans[oxcf->worst_allowed_q];
- lrc->last_q[INTER_FRAME] = q_trans[oxcf->worst_allowed_q];
- lrc->ni_av_qi = q_trans[oxcf->worst_allowed_q];
- lrc->total_actual_bits = 0;
- lrc->total_target_vs_actual = 0;
- lrc->ni_tot_qi = 0;
- lrc->tot_q = 0.0;
- lrc->avg_q = 0.0;
- lrc->ni_frames = 0;
- lrc->decimation_count = 0;
- lrc->decimation_factor = 0;
- lrc->rate_correction_factor = 1.0;
- lrc->key_frame_rate_correction_factor = 1.0;
- lc->target_bandwidth = oxcf->ts_target_bitrate[temporal_layer] *
- 1000;
- lrc->buffer_level = rescale((int)(oxcf->starting_buffer_level),
- lc->target_bandwidth, 1000);
- lrc->bits_off_target = lrc->buffer_level;
- }
-}
-
-// Update the layer context from a change_config() call.
-static void update_layer_context_change_config(VP9_COMP *const cpi,
- const int target_bandwidth) {- const VP9_CONFIG *const oxcf = &cpi->oxcf;
- const RATE_CONTROL *const rc = &cpi->rc;
- int temporal_layer = 0;
- float bitrate_alloc = 1.0;
- for (temporal_layer = 0; temporal_layer < cpi->svc.number_temporal_layers;
- ++temporal_layer) {- LAYER_CONTEXT *const lc = &cpi->svc.layer_context[temporal_layer];
- RATE_CONTROL *const lrc = &lc->rc;
- lc->target_bandwidth = oxcf->ts_target_bitrate[temporal_layer] * 1000;
- bitrate_alloc = (float)lc->target_bandwidth / (float)target_bandwidth;
- // Update buffer-related quantities.
- lc->starting_buffer_level =
- (int64_t)(oxcf->starting_buffer_level * bitrate_alloc);
- lc->optimal_buffer_level =
- (int64_t)(oxcf->optimal_buffer_level * bitrate_alloc);
- lc->maximum_buffer_size =
- (int64_t)(oxcf->maximum_buffer_size * bitrate_alloc);
- lrc->bits_off_target = MIN(lrc->bits_off_target, lc->maximum_buffer_size);
- lrc->buffer_level = MIN(lrc->buffer_level, lc->maximum_buffer_size);
- // Update framerate-related quantities.
- lc->framerate = oxcf->framerate / oxcf->ts_rate_decimator[temporal_layer];
- lrc->av_per_frame_bandwidth = (int)(lc->target_bandwidth / lc->framerate);
- lrc->max_frame_bandwidth = rc->max_frame_bandwidth;
- // Update qp-related quantities.
- lrc->worst_quality = rc->worst_quality;
- lrc->best_quality = rc->best_quality;
- }
-}
-
-// Prior to encoding the frame, update framerate-related quantities
-// for the current layer.
-static void update_layer_framerate(VP9_COMP *const cpi) {- int temporal_layer = cpi->svc.temporal_layer_id;
- const VP9_CONFIG *const oxcf = &cpi->oxcf;
- LAYER_CONTEXT *const lc = &cpi->svc.layer_context[temporal_layer];
- RATE_CONTROL *const lrc = &lc->rc;
- lc->framerate = oxcf->framerate / oxcf->ts_rate_decimator[temporal_layer];
- lrc->av_per_frame_bandwidth = (int)(lc->target_bandwidth / lc->framerate);
- lrc->max_frame_bandwidth = cpi->rc.max_frame_bandwidth;
- // Update the average layer frame size (non-cumulative per-frame-bw).
- if (temporal_layer == 0) {- lc->avg_frame_size = lrc->av_per_frame_bandwidth;
- } else {- double prev_layer_framerate = oxcf->framerate /
- oxcf->ts_rate_decimator[temporal_layer - 1];
- int prev_layer_target_bandwidth =
- oxcf->ts_target_bitrate[temporal_layer - 1] * 1000;
- lc->avg_frame_size =
- (int)((lc->target_bandwidth - prev_layer_target_bandwidth) /
- (lc->framerate - prev_layer_framerate));
- }
-}
-
-// Prior to encoding the frame, set the layer context, for the current layer
-// to be encoded, to the cpi struct.
-static void restore_layer_context(VP9_COMP *const cpi) {- int temporal_layer = cpi->svc.temporal_layer_id;
- LAYER_CONTEXT *lc = &cpi->svc.layer_context[temporal_layer];
- int frame_since_key = cpi->rc.frames_since_key;
- int frame_to_key = cpi->rc.frames_to_key;
- cpi->rc = lc->rc;
- cpi->oxcf.target_bandwidth = lc->target_bandwidth;
- cpi->oxcf.starting_buffer_level = lc->starting_buffer_level;
- cpi->oxcf.optimal_buffer_level = lc->optimal_buffer_level;
- cpi->oxcf.maximum_buffer_size = lc->maximum_buffer_size;
- cpi->output_framerate = lc->framerate;
- // Reset the frames_since_key and frames_to_key counters to their values
- // before the layer restore. Keep these defined for the stream (not layer).
- cpi->rc.frames_since_key = frame_since_key;
- cpi->rc.frames_to_key = frame_to_key;
-}
-
-// Save the layer context after encoding the frame.
-static void save_layer_context(VP9_COMP *const cpi) {- int temporal_layer = cpi->svc.temporal_layer_id;
- LAYER_CONTEXT *lc = &cpi->svc.layer_context[temporal_layer];
- lc->rc = cpi->rc;
- lc->target_bandwidth = (int)cpi->oxcf.target_bandwidth;
- lc->starting_buffer_level = cpi->oxcf.starting_buffer_level;
- lc->optimal_buffer_level = cpi->oxcf.optimal_buffer_level;
- lc->maximum_buffer_size = cpi->oxcf.maximum_buffer_size;
- lc->framerate = cpi->output_framerate;
-}
-
static void set_tile_limits(VP9_COMP *cpi) {VP9_COMMON *const cm = &cpi->common;
@@ -1339,7 +1221,7 @@
if (cpi->svc.number_temporal_layers > 1 &&
cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) {- init_layer_context(cpi);
+ vp9_init_layer_context(cpi);
}
// change includes all joint functionality
@@ -1468,21 +1350,24 @@
// Convert target bandwidth from Kbit/s to Bit/s
cpi->oxcf.target_bandwidth *= 1000;
- cpi->oxcf.starting_buffer_level = rescale(cpi->oxcf.starting_buffer_level,
- cpi->oxcf.target_bandwidth, 1000);
+ cpi->oxcf.starting_buffer_level =
+ vp9_rescale(cpi->oxcf.starting_buffer_level,
+ cpi->oxcf.target_bandwidth, 1000);
// Set or reset optimal and maximum buffer levels.
if (cpi->oxcf.optimal_buffer_level == 0)
cpi->oxcf.optimal_buffer_level = cpi->oxcf.target_bandwidth / 8;
else
- cpi->oxcf.optimal_buffer_level = rescale(cpi->oxcf.optimal_buffer_level,
- cpi->oxcf.target_bandwidth, 1000);
+ cpi->oxcf.optimal_buffer_level =
+ vp9_rescale(cpi->oxcf.optimal_buffer_level,
+ cpi->oxcf.target_bandwidth, 1000);
if (cpi->oxcf.maximum_buffer_size == 0)
cpi->oxcf.maximum_buffer_size = cpi->oxcf.target_bandwidth / 8;
else
- cpi->oxcf.maximum_buffer_size = rescale(cpi->oxcf.maximum_buffer_size,
- cpi->oxcf.target_bandwidth, 1000);
+ cpi->oxcf.maximum_buffer_size =
+ vp9_rescale(cpi->oxcf.maximum_buffer_size,
+ cpi->oxcf.target_bandwidth, 1000);
// Under a configuration change, where maximum_buffer_size may change,
// keep buffer level clipped to the maximum allowed buffer size.
cpi->rc.bits_off_target = MIN(cpi->rc.bits_off_target,
@@ -1522,7 +1407,8 @@
if (cpi->svc.number_temporal_layers > 1 &&
cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) {- update_layer_context_change_config(cpi, (int)cpi->oxcf.target_bandwidth);
+ vp9_update_layer_context_change_config(cpi,
+ (int)cpi->oxcf.target_bandwidth);
}
cpi->speed = abs(cpi->oxcf.cpu_used);
@@ -3671,8 +3557,8 @@
if (cpi->svc.number_temporal_layers > 1 &&
cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) {- update_layer_framerate(cpi);
- restore_layer_context(cpi);
+ vp9_update_layer_framerate(cpi);
+ vp9_restore_layer_context(cpi);
}
// start with a 0 size frame
@@ -3754,7 +3640,7 @@
// Save layer specific state.
if (cpi->svc.number_temporal_layers > 1 &&
cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER) {- save_layer_context(cpi);
+ vp9_save_layer_context(cpi);
}
vpx_usec_timer_mark(&cmptimer);
--- a/vp9/encoder/vp9_onyx_int.h
+++ b/vp9/encoder/vp9_onyx_int.h
@@ -30,6 +30,7 @@
#include "vp9/encoder/vp9_mcomp.h"
#include "vp9/encoder/vp9_quantize.h"
#include "vp9/encoder/vp9_ratectrl.h"
+#include "vp9/encoder/vp9_svc_layercontext.h"
#include "vp9/encoder/vp9_tokenize.h"
#include "vp9/encoder/vp9_variance.h"
@@ -432,16 +433,6 @@
BLOCK_SIZE max_intra_bsize;
} SPEED_FEATURES;
-typedef struct {- RATE_CONTROL rc;
- int target_bandwidth;
- int64_t starting_buffer_level;
- int64_t optimal_buffer_level;
- int64_t maximum_buffer_size;
- double framerate;
- int avg_frame_size;
-} LAYER_CONTEXT;
-
typedef enum {NORMAL = 0,
FOURFIVE = 1,
@@ -822,15 +813,7 @@
int use_svc;
- struct svc {- int spatial_layer_id;
- int temporal_layer_id;
- int number_spatial_layers;
- int number_temporal_layers;
- // Layer context used for rate control in CBR mode, only defined for
- // temporal layers for now.
- LAYER_CONTEXT layer_context[VPX_TS_MAX_LAYERS];
- } svc;
+ SVC svc;
#if CONFIG_MULTIPLE_ARF
// ARF tracking variables.
@@ -942,6 +925,10 @@
static int get_token_alloc(int mb_rows, int mb_cols) {return mb_rows * mb_cols * (48 * 16 + 4);
}
+
+extern const int q_trans[];
+
+int64_t vp9_rescale(int64_t val, int64_t num, int denom);
static void set_ref_ptrs(VP9_COMMON *cm, MACROBLOCKD *xd,
MV_REFERENCE_FRAME ref0, MV_REFERENCE_FRAME ref1) {--- a/vp9/encoder/vp9_ratectrl.h
+++ b/vp9/encoder/vp9_ratectrl.h
@@ -12,6 +12,10 @@
#ifndef VP9_ENCODER_VP9_RATECTRL_H_
#define VP9_ENCODER_VP9_RATECTRL_H_
+#include "vpx/vpx_integer.h"
+
+#include "vp9/common/vp9_blockd.h"
+
#ifdef __cplusplus
extern "C" {#endif
--- /dev/null
+++ b/vp9/encoder/vp9_svc_layercontext.c
@@ -1,0 +1,127 @@
+/*
+ * Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <math.h>
+
+#include "vp9/encoder/vp9_onyx_int.h"
+#include "vp9/encoder/vp9_svc_layercontext.h"
+
+void vp9_init_layer_context(VP9_COMP *const cpi) {+ const VP9_CONFIG *const oxcf = &cpi->oxcf;
+ int temporal_layer = 0;
+ cpi->svc.spatial_layer_id = 0;
+ cpi->svc.temporal_layer_id = 0;
+ for (temporal_layer = 0; temporal_layer < cpi->svc.number_temporal_layers;
+ ++temporal_layer) {+ LAYER_CONTEXT *const lc = &cpi->svc.layer_context[temporal_layer];
+ RATE_CONTROL *const lrc = &lc->rc;
+ lrc->avg_frame_qindex[INTER_FRAME] = q_trans[oxcf->worst_allowed_q];
+ lrc->last_q[INTER_FRAME] = q_trans[oxcf->worst_allowed_q];
+ lrc->ni_av_qi = q_trans[oxcf->worst_allowed_q];
+ lrc->total_actual_bits = 0;
+ lrc->total_target_vs_actual = 0;
+ lrc->ni_tot_qi = 0;
+ lrc->tot_q = 0.0;
+ lrc->avg_q = 0.0;
+ lrc->ni_frames = 0;
+ lrc->decimation_count = 0;
+ lrc->decimation_factor = 0;
+ lrc->rate_correction_factor = 1.0;
+ lrc->key_frame_rate_correction_factor = 1.0;
+ lc->target_bandwidth = oxcf->ts_target_bitrate[temporal_layer] *
+ 1000;
+ lrc->buffer_level =
+ vp9_rescale((int)(oxcf->starting_buffer_level),
+ lc->target_bandwidth, 1000);
+ lrc->bits_off_target = lrc->buffer_level;
+ }
+}
+
+// Update the layer context from a change_config() call.
+void vp9_update_layer_context_change_config(VP9_COMP *const cpi,
+ const int target_bandwidth) {+ const VP9_CONFIG *const oxcf = &cpi->oxcf;
+ const RATE_CONTROL *const rc = &cpi->rc;
+ int temporal_layer = 0;
+ float bitrate_alloc = 1.0;
+ for (temporal_layer = 0; temporal_layer < cpi->svc.number_temporal_layers;
+ ++temporal_layer) {+ LAYER_CONTEXT *const lc = &cpi->svc.layer_context[temporal_layer];
+ RATE_CONTROL *const lrc = &lc->rc;
+ lc->target_bandwidth = oxcf->ts_target_bitrate[temporal_layer] * 1000;
+ bitrate_alloc = (float)lc->target_bandwidth / (float)target_bandwidth;
+ // Update buffer-related quantities.
+ lc->starting_buffer_level =
+ (int64_t)(oxcf->starting_buffer_level * bitrate_alloc);
+ lc->optimal_buffer_level =
+ (int64_t)(oxcf->optimal_buffer_level * bitrate_alloc);
+ lc->maximum_buffer_size =
+ (int64_t)(oxcf->maximum_buffer_size * bitrate_alloc);
+ lrc->bits_off_target = MIN(lrc->bits_off_target, lc->maximum_buffer_size);
+ lrc->buffer_level = MIN(lrc->buffer_level, lc->maximum_buffer_size);
+ // Update framerate-related quantities.
+ lc->framerate = oxcf->framerate / oxcf->ts_rate_decimator[temporal_layer];
+ lrc->av_per_frame_bandwidth = (int)(lc->target_bandwidth / lc->framerate);
+ lrc->max_frame_bandwidth = rc->max_frame_bandwidth;
+ // Update qp-related quantities.
+ lrc->worst_quality = rc->worst_quality;
+ lrc->best_quality = rc->best_quality;
+ }
+}
+
+void vp9_update_layer_framerate(VP9_COMP *const cpi) {+ int temporal_layer = cpi->svc.temporal_layer_id;
+ const VP9_CONFIG *const oxcf = &cpi->oxcf;
+ LAYER_CONTEXT *const lc = &cpi->svc.layer_context[temporal_layer];
+ RATE_CONTROL *const lrc = &lc->rc;
+ lc->framerate = oxcf->framerate / oxcf->ts_rate_decimator[temporal_layer];
+ lrc->av_per_frame_bandwidth = (int)(lc->target_bandwidth / lc->framerate);
+ lrc->max_frame_bandwidth = cpi->rc.max_frame_bandwidth;
+ // Update the average layer frame size (non-cumulative per-frame-bw).
+ if (temporal_layer == 0) {+ lc->avg_frame_size = lrc->av_per_frame_bandwidth;
+ } else {+ double prev_layer_framerate = oxcf->framerate /
+ oxcf->ts_rate_decimator[temporal_layer - 1];
+ int prev_layer_target_bandwidth =
+ oxcf->ts_target_bitrate[temporal_layer - 1] * 1000;
+ lc->avg_frame_size =
+ (int)((lc->target_bandwidth - prev_layer_target_bandwidth) /
+ (lc->framerate - prev_layer_framerate));
+ }
+}
+
+void vp9_restore_layer_context(VP9_COMP *const cpi) {+ int temporal_layer = cpi->svc.temporal_layer_id;
+ LAYER_CONTEXT *lc = &cpi->svc.layer_context[temporal_layer];
+ int frame_since_key = cpi->rc.frames_since_key;
+ int frame_to_key = cpi->rc.frames_to_key;
+ cpi->rc = lc->rc;
+ cpi->oxcf.target_bandwidth = lc->target_bandwidth;
+ cpi->oxcf.starting_buffer_level = lc->starting_buffer_level;
+ cpi->oxcf.optimal_buffer_level = lc->optimal_buffer_level;
+ cpi->oxcf.maximum_buffer_size = lc->maximum_buffer_size;
+ cpi->output_framerate = lc->framerate;
+ // Reset the frames_since_key and frames_to_key counters to their values
+ // before the layer restore. Keep these defined for the stream (not layer).
+ cpi->rc.frames_since_key = frame_since_key;
+ cpi->rc.frames_to_key = frame_to_key;
+}
+
+void vp9_save_layer_context(VP9_COMP *const cpi) {+ int temporal_layer = cpi->svc.temporal_layer_id;
+ LAYER_CONTEXT *lc = &cpi->svc.layer_context[temporal_layer];
+ lc->rc = cpi->rc;
+ lc->target_bandwidth = (int)cpi->oxcf.target_bandwidth;
+ lc->starting_buffer_level = cpi->oxcf.starting_buffer_level;
+ lc->optimal_buffer_level = cpi->oxcf.optimal_buffer_level;
+ lc->maximum_buffer_size = cpi->oxcf.maximum_buffer_size;
+ lc->framerate = cpi->output_framerate;
+}
--- /dev/null
+++ b/vp9/encoder/vp9_svc_layercontext.h
@@ -1,0 +1,66 @@
+/*
+ * Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP9_ENCODER_VP9_SVC_LAYERCONTEXT_H_
+#define VP9_ENCODER_VP9_SVC_LAYERCONTEXT_H_
+
+#include "vpx/vpx_encoder.h"
+
+#include "vp9/encoder/vp9_ratectrl.h"
+
+#ifdef __cplusplus
+extern "C" {+#endif
+
+typedef struct {+ RATE_CONTROL rc;
+ int target_bandwidth;
+ int64_t starting_buffer_level;
+ int64_t optimal_buffer_level;
+ int64_t maximum_buffer_size;
+ double framerate;
+ int avg_frame_size;
+} LAYER_CONTEXT;
+
+typedef struct {+ int spatial_layer_id;
+ int temporal_layer_id;
+ int number_spatial_layers;
+ int number_temporal_layers;
+ // Layer context used for rate control in CBR mode, only defined for
+ // temporal layers for now.
+ LAYER_CONTEXT layer_context[VPX_TS_MAX_LAYERS];
+} SVC;
+
+struct VP9_COMP;
+
+// Initialize layer context data from init_config().
+void vp9_init_layer_context(struct VP9_COMP *const cpi);
+
+// Update the layer context from a change_config() call.
+void vp9_update_layer_context_change_config(struct VP9_COMP *const cpi,
+ const int target_bandwidth);
+
+// Prior to encoding the frame, update framerate-related quantities
+// for the current layer.
+void vp9_update_layer_framerate(struct VP9_COMP *const cpi);
+
+// Prior to encoding the frame, set the layer context, for the current layer
+// to be encoded, to the cpi struct.
+void vp9_restore_layer_context(struct VP9_COMP *const cpi);
+
+// Save the layer context after encoding the frame.
+void vp9_save_layer_context(struct VP9_COMP *const cpi);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // VP9_ENCODER_VP9_SVC_LAYERCONTEXT_
--- a/vp9/vp9cx.mk
+++ b/vp9/vp9cx.mk
@@ -44,6 +44,7 @@
VP9_CX_SRCS-yes += encoder/vp9_ratectrl.h
VP9_CX_SRCS-yes += encoder/vp9_rdopt.h
VP9_CX_SRCS-yes += encoder/vp9_pickmode.h
+VP9_CX_SRCS-yes += encoder/vp9_svc_layercontext.h
VP9_CX_SRCS-yes += encoder/vp9_tokenize.h
VP9_CX_SRCS-yes += encoder/vp9_treewriter.h
VP9_CX_SRCS-yes += encoder/vp9_variance.h
@@ -60,6 +61,7 @@
VP9_CX_SRCS-yes += encoder/vp9_segmentation.h
VP9_CX_SRCS-yes += encoder/vp9_subexp.c
VP9_CX_SRCS-yes += encoder/vp9_subexp.h
+VP9_CX_SRCS-yes += encoder/vp9_svc_layercontext.c
VP9_CX_SRCS-yes += encoder/vp9_resize.c
VP9_CX_SRCS-yes += encoder/vp9_resize.h
VP9_CX_SRCS-$(CONFIG_INTERNAL_STATS) += encoder/vp9_ssim.c