| Index: third_party/libvpx/source/libvpx/vp9/encoder/vp9_svc_layercontext.h
|
| diff --git a/third_party/libvpx/source/libvpx/vp9/encoder/vp9_svc_layercontext.h b/third_party/libvpx/source/libvpx/vp9/encoder/vp9_svc_layercontext.h
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| new file mode 100644
|
| index 0000000000000000000000000000000000000000..e9645ce9f24cf64aec33c0209e8c22bc4ad17a5a
|
| --- /dev/null
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| +++ b/third_party/libvpx/source/libvpx/vp9/encoder/vp9_svc_layercontext.h
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| @@ -0,0 +1,118 @@
|
| +/*
|
| + * 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;
|
| + double framerate;
|
| + int avg_frame_size;
|
| + int max_q;
|
| + int min_q;
|
| + int scaling_factor_num;
|
| + int scaling_factor_den;
|
| + TWO_PASS twopass;
|
| + vpx_fixed_buf_t rc_twopass_stats_in;
|
| + unsigned int current_video_frame_in_layer;
|
| + int is_key_frame;
|
| + int frames_from_key_frame;
|
| + FRAME_TYPE last_frame_type;
|
| + struct lookahead_entry *alt_ref_source;
|
| + int alt_ref_idx;
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| + int gold_ref_idx;
|
| + int has_alt_frame;
|
| + size_t layer_size;
|
| + struct vpx_psnr_pkt psnr_pkt;
|
| +} LAYER_CONTEXT;
|
| +
|
| +typedef struct {
|
| + int spatial_layer_id;
|
| + int temporal_layer_id;
|
| + int number_spatial_layers;
|
| + int number_temporal_layers;
|
| +
|
| + int spatial_layer_to_encode;
|
| +
|
| + // Workaround for multiple frame contexts
|
| + enum {
|
| + ENCODED = 0,
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| + ENCODING,
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| + NEED_TO_ENCODE
|
| + }encode_empty_frame_state;
|
| + struct lookahead_entry empty_frame;
|
| + int empty_frame_width;
|
| + int empty_frame_height;
|
| +
|
| + // Store scaled source frames to be used for temporal filter to generate
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| + // a alt ref frame.
|
| + YV12_BUFFER_CONFIG scaled_frames[MAX_LAG_BUFFERS];
|
| +
|
| + // 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);
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| +
|
| +// 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(struct VP9_COMP *const cpi);
|
| +
|
| +// Check if current layer is key frame in spatial upper layer
|
| +int vp9_is_upper_layer_key_frame(const struct VP9_COMP *const cpi);
|
| +
|
| +// Get the next source buffer to encode
|
| +struct lookahead_entry *vp9_svc_lookahead_pop(struct VP9_COMP *const cpi,
|
| + struct lookahead_ctx *ctx,
|
| + int drain);
|
| +
|
| +// Start a frame and initialize svc parameters
|
| +int vp9_svc_start_frame(struct VP9_COMP *const cpi);
|
| +
|
| +#ifdef __cplusplus
|
| +} // extern "C"
|
| +#endif
|
| +
|
| +#endif // VP9_ENCODER_VP9_SVC_LAYERCONTEXT_
|
|
|