Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 127 insertions, 0 deletions

diff --git a/media/libvpx/libvpx/vp9/encoder/vp9_alt_ref_aq.h b/media/libvpx/libvpx/vp9/encoder/vp9_alt_ref_aq.h
new file mode 100644
index 0000000000..22a657e035
--- /dev/null
+++ b/media/libvpx/libvpx/vp9/encoder/vp9_alt_ref_aq.h
@@ -0,0 +1,127 @@
+/*
+ *  Copyright (c) 2016 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.
+ */
+
+/*
+ *  \file vp9_alt_ref_aq.h
+ *
+ *  This file  contains public interface  for setting up  adaptive segmentation
+ *  for altref frames.  Go to alt_ref_aq_private.h for implmentation details.
+ */
+
+#ifndef VPX_VP9_ENCODER_VP9_ALT_REF_AQ_H_
+#define VPX_VP9_ENCODER_VP9_ALT_REF_AQ_H_
+
+#include "vpx/vpx_integer.h"
+
+// Where to disable segmentation
+#define ALT_REF_AQ_LOW_BITRATE_BOUNDARY 150
+
+// Last frame always has overall quality = 0,
+// so it is questionable if I can process it
+#define ALT_REF_AQ_APPLY_TO_LAST_FRAME 1
+
+// If I should try to compare gain
+// against segmentation overhead
+#define ALT_REF_AQ_PROTECT_GAIN 0
+
+// Threshold to disable segmentation
+#define ALT_REF_AQ_PROTECT_GAIN_THRESH 0.5
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Simple structure for storing images
+struct MATX_8U {
+  int rows;
+  int cols;
+  int stride;
+
+  uint8_t *data;
+};
+
+struct VP9_COMP;
+struct ALT_REF_AQ;
+
+/*!\brief Constructor
+ *
+ * \return Instance of the class
+ */
+struct ALT_REF_AQ *vp9_alt_ref_aq_create(void);
+
+/*!\brief Upload segmentation_map to self object
+ *
+ * \param    self             Instance of the class
+ * \param    segmentation_map Segmentation map to upload
+ */
+void vp9_alt_ref_aq_upload_map(struct ALT_REF_AQ *const self,
+                               const struct MATX_8U *segmentation_map);
+
+/*!\brief Return pointer to the altref segmentation map
+ *
+ * \param    self                    Instance of the class
+ * \param    segmentation_overhead   Segmentation overhead in bytes
+ * \param    bandwidth               Current frame bandwidth in bytes
+ *
+ * \return  Boolean value to disable segmentation
+ */
+int vp9_alt_ref_aq_disable_if(const struct ALT_REF_AQ *self,
+                              int segmentation_overhead, int bandwidth);
+
+/*!\brief Set number of segments
+ *
+ * It is used for delta quantizer computations
+ * and thus it can be larger than
+ * maximum value of the segmentation map
+ *
+ * \param    self        Instance of the class
+ * \param    nsegments   Maximum number of segments
+ */
+void vp9_alt_ref_aq_set_nsegments(struct ALT_REF_AQ *const self, int nsegments);
+
+/*!\brief Set up LOOKAHEAD_AQ segmentation mode
+ *
+ * Set up segmentation mode to LOOKAHEAD_AQ
+ * (expected future frames prediction
+ *  quality refering to the current frame).
+ *
+ * \param    self    Instance of the class
+ * \param    cpi     Encoder context
+ */
+void vp9_alt_ref_aq_setup_mode(struct ALT_REF_AQ *const self,
+                               struct VP9_COMP *const cpi);
+
+/*!\brief Set up LOOKAHEAD_AQ segmentation map and delta quantizers
+ *
+ * \param    self    Instance of the class
+ * \param    cpi     Encoder context
+ */
+void vp9_alt_ref_aq_setup_map(struct ALT_REF_AQ *const self,
+                              struct VP9_COMP *const cpi);
+
+/*!\brief Restore main segmentation map mode and reset the class variables
+ *
+ * \param    self    Instance of the class
+ * \param    cpi     Encoder context
+ */
+void vp9_alt_ref_aq_unset_all(struct ALT_REF_AQ *const self,
+                              struct VP9_COMP *const cpi);
+
+/*!\brief Destructor
+ *
+ * \param    self    Instance of the class
+ */
+void vp9_alt_ref_aq_destroy(struct ALT_REF_AQ *const self);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_VP9_ENCODER_VP9_ALT_REF_AQ_H_