| Index: third_party/libvpx/source/libvpx/vpx/svc_context.h
|
| diff --git a/third_party/libvpx/source/libvpx/vpx/svc_context.h b/third_party/libvpx/source/libvpx/vpx/svc_context.h
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..cf791bdeb568ba0886430e4dcbfaebb2ed339ec0
|
| --- /dev/null
|
| +++ b/third_party/libvpx/source/libvpx/vpx/svc_context.h
|
| @@ -0,0 +1,119 @@
|
| +/*
|
| + * Copyright (c) 2013 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.
|
| + */
|
| +
|
| +/**
|
| + * SvcContext - input parameters and state to encode a multi-layered
|
| + * spatial SVC frame
|
| + */
|
| +
|
| +#ifndef VPX_SVC_CONTEXT_H_
|
| +#define VPX_SVC_CONTEXT_H_
|
| +
|
| +#include "./vp8cx.h"
|
| +#include "./vpx_encoder.h"
|
| +
|
| +#ifdef __cplusplus
|
| +extern "C" {
|
| +#endif
|
| +
|
| +typedef enum SVC_LOG_LEVEL {
|
| + SVC_LOG_ERROR,
|
| + SVC_LOG_INFO,
|
| + SVC_LOG_DEBUG
|
| +} SVC_LOG_LEVEL;
|
| +
|
| +typedef struct {
|
| + // public interface to svc_command options
|
| + int spatial_layers; // number of spatial layers
|
| + int temporal_layers; // number of temporal layers
|
| + SVC_LOG_LEVEL log_level; // amount of information to display
|
| + int log_print; // when set, printf log messages instead of returning the
|
| + // message with svc_get_message
|
| +
|
| + // private storage for vpx_svc_encode
|
| + void *internal;
|
| +} SvcContext;
|
| +
|
| +#define OPTION_BUFFER_SIZE 1024
|
| +#define COMPONENTS 4 // psnr & sse statistics maintained for total, y, u, v
|
| +
|
| +typedef struct SvcInternal {
|
| + char options[OPTION_BUFFER_SIZE]; // set by vpx_svc_set_options
|
| +
|
| + // values extracted from option, quantizers
|
| + vpx_svc_extra_cfg_t svc_params;
|
| + int enable_auto_alt_ref[VPX_SS_MAX_LAYERS];
|
| + int bitrates[VPX_SS_MAX_LAYERS];
|
| +
|
| + // accumulated statistics
|
| + double psnr_sum[VPX_SS_MAX_LAYERS][COMPONENTS]; // total/Y/U/V
|
| + uint64_t sse_sum[VPX_SS_MAX_LAYERS][COMPONENTS];
|
| + uint32_t bytes_sum[VPX_SS_MAX_LAYERS];
|
| +
|
| + // codec encoding values
|
| + int width; // width of highest layer
|
| + int height; // height of highest layer
|
| + int kf_dist; // distance between keyframes
|
| +
|
| + // state variables
|
| + int psnr_pkt_received;
|
| + int layer;
|
| + int use_multiple_frame_contexts;
|
| +
|
| + char message_buffer[2048];
|
| + vpx_codec_ctx_t *codec_ctx;
|
| +} SvcInternal_t;
|
| +
|
| +/**
|
| + * Set SVC options
|
| + * options are supplied as a single string separated by spaces
|
| + * Format: encoding-mode=<i|ip|alt-ip|gf>
|
| + * layers=<layer_count>
|
| + * scaling-factors=<n1>/<d1>,<n2>/<d2>,...
|
| + * quantizers=<q1>,<q2>,...
|
| + */
|
| +vpx_codec_err_t vpx_svc_set_options(SvcContext *svc_ctx, const char *options);
|
| +
|
| +/**
|
| + * initialize SVC encoding
|
| + */
|
| +vpx_codec_err_t vpx_svc_init(SvcContext *svc_ctx,
|
| + vpx_codec_ctx_t *codec_ctx,
|
| + vpx_codec_iface_t *iface,
|
| + vpx_codec_enc_cfg_t *cfg);
|
| +/**
|
| + * encode a frame of video with multiple layers
|
| + */
|
| +vpx_codec_err_t vpx_svc_encode(SvcContext *svc_ctx,
|
| + vpx_codec_ctx_t *codec_ctx,
|
| + struct vpx_image *rawimg,
|
| + vpx_codec_pts_t pts,
|
| + int64_t duration, int deadline);
|
| +
|
| +/**
|
| + * finished with svc encoding, release allocated resources
|
| + */
|
| +void vpx_svc_release(SvcContext *svc_ctx);
|
| +
|
| +/**
|
| + * dump accumulated statistics and reset accumulated values
|
| + */
|
| +const char *vpx_svc_dump_statistics(SvcContext *svc_ctx);
|
| +
|
| +/**
|
| + * get status message from previous encode
|
| + */
|
| +const char *vpx_svc_get_message(const SvcContext *svc_ctx);
|
| +
|
| +#ifdef __cplusplus
|
| +} // extern "C"
|
| +#endif
|
| +
|
| +#endif // VPX_SVC_CONTEXT_H_
|
|
|