1 /*
2 * Copyright (C) 2014 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 //#define LOG_NDEBUG 0
18 #define LOG_TAG "WebmFrame"
19
20 #include "WebmFrame.h"
21 #include "WebmConstants.h"
22
23 #include <media/stagefright/foundation/ADebug.h>
24 #include <unistd.h>
25
26 using namespace android;
27 using namespace webm;
28
29 namespace {
toABuffer(MediaBuffer * mbuf)30 sp<ABuffer> toABuffer(MediaBuffer *mbuf) {
31 sp<ABuffer> abuf = new ABuffer(mbuf->range_length());
32 memcpy(abuf->data(), (uint8_t*) mbuf->data() + mbuf->range_offset(), mbuf->range_length());
33 return abuf;
34 }
35 }
36
37 namespace android {
38
39 const sp<WebmFrame> WebmFrame::EOS = new WebmFrame();
40
WebmFrame()41 WebmFrame::WebmFrame()
42 : mType(kInvalidType),
43 mKey(false),
44 mAbsTimecode(UINT64_MAX),
45 mData(new ABuffer(0)),
46 mEos(true) {
47 }
48
WebmFrame(int type,bool key,uint64_t absTimecode,MediaBuffer * mbuf)49 WebmFrame::WebmFrame(int type, bool key, uint64_t absTimecode, MediaBuffer *mbuf)
50 : mType(type),
51 mKey(key),
52 mAbsTimecode(absTimecode),
53 mData(toABuffer(mbuf)),
54 mEos(false) {
55 }
56
SimpleBlock(uint64_t baseTimecode) const57 sp<WebmElement> WebmFrame::SimpleBlock(uint64_t baseTimecode) const {
58 return new WebmSimpleBlock(
59 mType == kVideoType ? kVideoTrackNum : kAudioTrackNum,
60 mAbsTimecode - baseTimecode,
61 mKey,
62 mData);
63 }
64
operator <(const WebmFrame & other) const65 bool WebmFrame::operator<(const WebmFrame &other) const {
66 if (this->mEos) {
67 return false;
68 }
69 if (other.mEos) {
70 return true;
71 }
72 if (this->mAbsTimecode == other.mAbsTimecode) {
73 if (this->mType == kAudioType && other.mType == kVideoType) {
74 return true;
75 }
76 if (this->mType == kVideoType && other.mType == kAudioType) {
77 return false;
78 }
79 return false;
80 }
81 return this->mAbsTimecode < other.mAbsTimecode;
82 }
83 } /* namespace android */
84