81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
/*
|
|
* 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;
|
|
struct twopass_rc twopass;
|
|
struct vpx_fixed_buf rc_twopass_stats_in;
|
|
unsigned int current_video_frame_in_layer;
|
|
} 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 one pass temporal CBR mode or
|
|
// two pass spatial mode. Defined for temporal or spatial layers for now.
|
|
// Does not support temporal combined with spatial RC.
|
|
LAYER_CONTEXT layer_context[MAX(VPX_TS_MAX_LAYERS, VPX_SS_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 temporal layer.
|
|
void vp9_update_temporal_layer_framerate(struct VP9_COMP *const cpi);
|
|
|
|
// Update framerate-related quantities for the current spatial layer.
|
|
void vp9_update_spatial_layer_framerate(struct VP9_COMP *const cpi,
|
|
double framerate);
|
|
|
|
// 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);
|
|
|
|
// Initialize second pass rc for spatial svc.
|
|
void vp9_init_second_pass_spatial_svc(struct VP9_COMP *cpi);
|
|
|
|
// Increment number of video frames in layer
|
|
void vp9_inc_frame_in_layer(SVC *svc);
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
#endif
|
|
|
|
#endif // VP9_ENCODER_VP9_SVC_LAYERCONTEXT_
|