1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef SOFT_VP8_ENCODER_H_
18
19#define SOFT_VP8_ENCODER_H_
20
21#include "SoftVPXEncoder.h"
22
23#include <OMX_VideoExt.h>
24#include <OMX_IndexExt.h>
25
26#include <hardware/gralloc.h>
27
28#include "vpx/vpx_encoder.h"
29#include "vpx/vpx_codec.h"
30#include "vpx/vp8cx.h"
31
32namespace android {
33
34// Exposes a vp8 encoder as an OMX Component
35//
36// In addition to the base class settings, Only following encoder settings are
37// available:
38//    - token partitioning
39struct SoftVP8Encoder : public SoftVPXEncoder {
40    SoftVP8Encoder(const char *name,
41                   const OMX_CALLBACKTYPE *callbacks,
42                   OMX_PTR appData,
43                   OMX_COMPONENTTYPE **component);
44
45protected:
46    // Returns current values for requested OMX
47    // parameters
48    virtual OMX_ERRORTYPE internalGetParameter(
49            OMX_INDEXTYPE index, OMX_PTR param);
50
51    // Validates, extracts and stores relevant OMX
52    // parameters
53    virtual OMX_ERRORTYPE internalSetParameter(
54            OMX_INDEXTYPE index, const OMX_PTR param);
55
56    // Populates |mCodecInterface| with codec specific settings.
57    virtual void setCodecSpecificInterface();
58
59    // Sets codec specific configuration.
60    virtual void setCodecSpecificConfiguration();
61
62    // Initializes codec specific encoder settings.
63    virtual vpx_codec_err_t setCodecSpecificControls();
64
65    // Gets vp8 specific parameters.
66    OMX_ERRORTYPE internalGetVp8Params(
67        OMX_VIDEO_PARAM_VP8TYPE* vp8Params);
68
69    // Handles vp8 specific parameters.
70    OMX_ERRORTYPE internalSetVp8Params(
71        const OMX_VIDEO_PARAM_VP8TYPE* vp8Params);
72
73private:
74    // Max value supported for DCT partitions
75    static const uint32_t kMaxDCTPartitions = 3;
76
77    // vp8 specific configuration parameter
78    // that enables token partitioning of
79    // the stream into substreams
80    int32_t mDCTPartitions;
81
82    // Encoder profile corresponding to OMX level parameter
83    //
84    // The inconsistency in the naming is caused by
85    // OMX spec referring vpx profiles (g_profile)
86    // as "levels" whereas using the name "profile" for
87    // something else.
88    OMX_VIDEO_VP8LEVELTYPE mLevel;
89
90    DISALLOW_EVIL_CONSTRUCTORS(SoftVP8Encoder);
91};
92
93}  // namespace android
94
95#endif  // SOFT_VP8_ENCODER_H_
96