Mike Reed | 7bf160e | 2019-05-17 16:50:51 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2019 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "experimental/ffmpeg/SkVideoDecoder.h" |
| 9 | #include "gm/gm.h" |
| 10 | #include "include/core/SkCanvas.h" |
| 11 | #include "include/core/SkStream.h" |
| 12 | |
| 13 | class VideoDecoderGM : public skiagm::GM { |
| 14 | SkVideoDecoder fDecoder; |
| 15 | |
| 16 | public: |
| 17 | VideoDecoderGM() {} |
| 18 | |
| 19 | protected: |
| 20 | |
| 21 | SkString onShortName() override { |
| 22 | return SkString("videodecoder"); |
| 23 | } |
| 24 | |
| 25 | SkISize onISize() override { |
| 26 | return SkISize::Make(1024, 768); |
| 27 | } |
| 28 | |
| 29 | void onOnceBeforeDraw() override { |
| 30 | if (!fDecoder.loadStream(SkStream::MakeFromFile("/skia/ice.mp4"))) { |
| 31 | SkDebugf("could not load movie file\n"); |
| 32 | } |
| 33 | SkDebugf("duration %g\n", fDecoder.duration()); |
| 34 | } |
| 35 | |
| 36 | void onDraw(SkCanvas* canvas) override { |
| 37 | GrContext* gr = canvas->getGrContext(); |
| 38 | if (!gr) { |
| 39 | return; |
| 40 | } |
| 41 | |
| 42 | fDecoder.setGrContext(gr); // gr can change over time in viewer |
| 43 | |
| 44 | double timeStamp; |
| 45 | auto img = fDecoder.nextImage(&timeStamp); |
| 46 | if (!img) { |
| 47 | (void)fDecoder.rewind(); |
| 48 | img = fDecoder.nextImage(&timeStamp); |
| 49 | } |
| 50 | if (img) { |
| 51 | if (0) { |
| 52 | SkDebugf("ts %g\n", timeStamp); |
| 53 | } |
| 54 | canvas->drawImage(img, 10, 10, nullptr); |
| 55 | } |
| 56 | } |
| 57 | |
Hal Canary | 4124807 | 2019-07-11 16:32:53 -0400 | [diff] [blame] | 58 | bool onAnimate(double nanos) override { |
Mike Reed | 7bf160e | 2019-05-17 16:50:51 -0400 | [diff] [blame] | 59 | return true; |
| 60 | } |
| 61 | |
| 62 | private: |
| 63 | typedef GM INHERITED; |
| 64 | }; |
| 65 | DEF_GM( return new VideoDecoderGM; ) |
| 66 | |