1 // Copyright (C) 2020 The Android Open Source Project
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "host-common/MediaVideoHelper.h"
16
17 #define MEDIA_VIDEO_DEBUG 0
18
19 #if MEDIA_VIDEO_DEBUG
20 #define MEDIA_DPRINT(fmt, ...) \
21 fprintf(stderr, "media-video-helper: %s:%d " fmt "\n", __func__, __LINE__, \
22 ##__VA_ARGS__);
23 #else
24 #define MEDIA_DPRINT(fmt, ...)
25 #endif
26
27 namespace android {
28 namespace emulation {
29
30 using FrameInfo = MediaSnapshotState::FrameInfo;
31
receiveFrame(FrameInfo * pFrameInfo)32 bool MediaVideoHelper::receiveFrame(FrameInfo* pFrameInfo) {
33 if (mSavedDecodedFrames.empty()) {
34 MEDIA_DPRINT("no frame to return");
35 return false;
36 }
37 std::swap(*pFrameInfo, mSavedDecodedFrames.front());
38 mSavedDecodedFrames.pop_front();
39 MEDIA_DPRINT("has frame to return");
40 return true;
41 }
42
43 } // namespace emulation
44 } // namespace android
45