skia2/gm/video_decoder.cpp
Mike Reed 7bf160e6d5 Revert "Revert "Experimental SkVideoDecoder, to wrap calls to ffmpeg""
fix google3 build (don't build the new gm)

This reverts commit 9cc53fa4bd.

Change-Id: I3de8aa4959f62a380f1d4aaf2b788d250775e194
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/214442
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Auto-Submit: Mike Reed <reed@google.com>
2019-05-17 21:25:48 +00:00

67 lines
1.5 KiB
C++

/*
* Copyright 2019 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "experimental/ffmpeg/SkVideoDecoder.h"
#include "gm/gm.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkStream.h"
class VideoDecoderGM : public skiagm::GM {
SkVideoDecoder fDecoder;
public:
VideoDecoderGM() {}
protected:
SkString onShortName() override {
return SkString("videodecoder");
}
SkISize onISize() override {
return SkISize::Make(1024, 768);
}
void onOnceBeforeDraw() override {
if (!fDecoder.loadStream(SkStream::MakeFromFile("/skia/ice.mp4"))) {
SkDebugf("could not load movie file\n");
}
SkDebugf("duration %g\n", fDecoder.duration());
}
void onDraw(SkCanvas* canvas) override {
GrContext* gr = canvas->getGrContext();
if (!gr) {
return;
}
fDecoder.setGrContext(gr); // gr can change over time in viewer
double timeStamp;
auto img = fDecoder.nextImage(&timeStamp);
if (!img) {
(void)fDecoder.rewind();
img = fDecoder.nextImage(&timeStamp);
}
if (img) {
if (0) {
SkDebugf("ts %g\n", timeStamp);
}
canvas->drawImage(img, 10, 10, nullptr);
}
}
bool onAnimate(const AnimTimer& timer) override {
return true;
}
private:
typedef GM INHERITED;
};
DEF_GM( return new VideoDecoderGM; )