blob: 1cf6f293e36735087c4ff5563a6001536527dced [file] [log] [blame]
/*
* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "test/fake_vp8_decoder.h"
#include <stddef.h>
#include "absl/types/optional.h"
#include "api/video/i420_buffer.h"
#include "api/video/video_frame.h"
#include "api/video/video_frame_buffer.h"
#include "api/video/video_rotation.h"
#include "modules/video_coding/include/video_error_codes.h"
#include "rtc_base/scoped_ref_ptr.h"
#include "rtc_base/timeutils.h"
namespace webrtc {
namespace test {
namespace {
// Read width and height from the payload of the frame if it is a key frame the
// same way as the real VP8 decoder.
// FakeEncoder writes width, height and frame type.
void ParseFakeVp8(const unsigned char* data, int* width, int* height) {
bool key_frame = data[0] == 0;
if (key_frame) {
*width = ((data[7] << 8) + data[6]) & 0x3FFF;
*height = ((data[9] << 8) + data[8]) & 0x3FFF;
}
}
} // namespace
FakeVp8Decoder::FakeVp8Decoder() : callback_(nullptr), width_(0), height_(0) {}
int32_t FakeVp8Decoder::InitDecode(const VideoCodec* config,
int32_t number_of_cores) {
return WEBRTC_VIDEO_CODEC_OK;
}
int32_t FakeVp8Decoder::Decode(const EncodedImage& input,
bool missing_frames,
const CodecSpecificInfo* codec_specific_info,
int64_t render_time_ms) {
constexpr size_t kMinPayLoadHeaderLength = 10;
if (input._length < kMinPayLoadHeaderLength) {
return WEBRTC_VIDEO_CODEC_ERROR;
}
ParseFakeVp8(input._buffer, &width_, &height_);
VideoFrame frame(I420Buffer::Create(width_, height_),
webrtc::kVideoRotation_0,
render_time_ms * rtc::kNumMicrosecsPerMillisec);
frame.set_timestamp(input.Timestamp());
frame.set_ntp_time_ms(input.ntp_time_ms_);
callback_->Decoded(frame, /*decode_time_ms=*/absl::nullopt,
/*qp=*/absl::nullopt);
return WEBRTC_VIDEO_CODEC_OK;
}
int32_t FakeVp8Decoder::RegisterDecodeCompleteCallback(
DecodedImageCallback* callback) {
callback_ = callback;
return WEBRTC_VIDEO_CODEC_OK;
}
int32_t FakeVp8Decoder::Release() {
return WEBRTC_VIDEO_CODEC_OK;
}
const char* FakeVp8Decoder::kImplementationName = "fake_vp8_decoder";
const char* FakeVp8Decoder::ImplementationName() const {
return kImplementationName;
}
} // namespace test
} // namespace webrtc