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/*
* Copyright (c) 2013 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/frame_utils.h"
#include <stdio.h>
#include <string.h>
#include "api/video/i420_buffer.h"
#include "api/video/nv12_buffer.h"
#include "api/video/video_frame.h"
namespace webrtc {
namespace test {
bool EqualPlane(const uint8_t* data1,
const uint8_t* data2,
int stride1,
int stride2,
int width,
int height) {
for (int y = 0; y < height; ++y) {
if (memcmp(data1, data2, width) != 0)
return false;
data1 += stride1;
data2 += stride2;
}
return true;
}
bool FramesEqual(const webrtc::VideoFrame& f1, const webrtc::VideoFrame& f2) {
if (f1.rtp_timestamp() != f2.rtp_timestamp() ||
f1.ntp_time_ms() != f2.ntp_time_ms() ||
f1.render_time_ms() != f2.render_time_ms()) {
return false;
}
return FrameBufsEqual(f1.video_frame_buffer(), f2.video_frame_buffer());
}
bool FrameBufsEqual(const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& f1,
const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& f2) {
if (f1 == f2) {
return true;
}
// Exlude nullptr (except if both are nullptr, as above)
if (!f1 || !f2) {
return false;
}
if (f1->width() != f2->width() || f1->height() != f2->height() ||
f1->type() != f2->type()) {
return false;
}
rtc::scoped_refptr<webrtc::I420BufferInterface> f1_i420 = f1->ToI420();
rtc::scoped_refptr<webrtc::I420BufferInterface> f2_i420 = f2->ToI420();
return EqualPlane(f1_i420->DataY(), f2_i420->DataY(), f1_i420->StrideY(),
f2_i420->StrideY(), f1_i420->width(), f1_i420->height()) &&
EqualPlane(f1_i420->DataU(), f2_i420->DataU(), f1_i420->StrideU(),
f2_i420->StrideU(), f1_i420->ChromaWidth(),
f1_i420->ChromaHeight()) &&
EqualPlane(f1_i420->DataV(), f2_i420->DataV(), f1_i420->StrideV(),
f2_i420->StrideV(), f1_i420->ChromaWidth(),
f1_i420->ChromaHeight());
}
rtc::scoped_refptr<I420Buffer> ReadI420Buffer(int width, int height, FILE* f) {
int half_width = (width + 1) / 2;
rtc::scoped_refptr<I420Buffer> buffer(
// Explicit stride, no padding between rows.
I420Buffer::Create(width, height, width, half_width, half_width));
size_t size_y = static_cast<size_t>(width) * height;
size_t size_uv = static_cast<size_t>(half_width) * ((height + 1) / 2);
if (fread(buffer->MutableDataY(), 1, size_y, f) < size_y)
return nullptr;
if (fread(buffer->MutableDataU(), 1, size_uv, f) < size_uv)
return nullptr;
if (fread(buffer->MutableDataV(), 1, size_uv, f) < size_uv)
return nullptr;
return buffer;
}
rtc::scoped_refptr<NV12Buffer> ReadNV12Buffer(int width, int height, FILE* f) {
rtc::scoped_refptr<NV12Buffer> buffer(NV12Buffer::Create(width, height));
size_t size_y = static_cast<size_t>(width) * height;
size_t size_uv = static_cast<size_t>(width + width % 2) * ((height + 1) / 2);
if (fread(buffer->MutableDataY(), 1, size_y, f) < size_y)
return nullptr;
if (fread(buffer->MutableDataUV(), 1, size_uv, f) < size_uv)
return nullptr;
return buffer;
}
} // namespace test
} // namespace webrtc