Index: source/libvpx/vp9/encoder/vp9_svc_layercontext.h |
=================================================================== |
--- source/libvpx/vp9/encoder/vp9_svc_layercontext.h (revision 0) |
+++ source/libvpx/vp9/encoder/vp9_svc_layercontext.h (revision 0) |
@@ -0,0 +1,80 @@ |
+/* |
+ * 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_ |