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/*
* Copyright (c) 2012 The WebM 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.
*/
#ifndef VPX_TEST_WEBM_VIDEO_SOURCE_H_
#define VPX_TEST_WEBM_VIDEO_SOURCE_H_
#include <cstdarg>
#include <cstdio>
#include <cstdlib>
#include <new>
#include <string>
#include "../tools_common.h"
#include "../webmdec.h"
#include "test/video_source.h"
namespace libvpx_test {
// This class extends VideoSource to allow parsing of WebM files,
// so that we can do actual file decodes.
class WebMVideoSource : public CompressedVideoSource {
public:
explicit WebMVideoSource(const std::string &file_name)
: file_name_(file_name), vpx_ctx_(new VpxInputContext()),
webm_ctx_(new WebmInputContext()), buf_(nullptr), buf_sz_(0), frame_(0),
end_of_file_(false) {}
~WebMVideoSource() override {
if (vpx_ctx_->file != nullptr) fclose(vpx_ctx_->file);
webm_free(webm_ctx_);
delete vpx_ctx_;
delete webm_ctx_;
}
void Init() override {}
void Begin() override {
vpx_ctx_->file = OpenTestDataFile(file_name_);
ASSERT_NE(vpx_ctx_->file, nullptr)
<< "Input file open failed. Filename: " << file_name_;
ASSERT_EQ(file_is_webm(webm_ctx_, vpx_ctx_), 1) << "file is not WebM";
FillFrame();
}
void Next() override {
++frame_;
FillFrame();
}
void FillFrame() {
ASSERT_NE(vpx_ctx_->file, nullptr);
const int status = webm_read_frame(webm_ctx_, &buf_, &buf_sz_);
ASSERT_GE(status, 0) << "webm_read_frame failed";
if (status == 1) {
end_of_file_ = true;
}
}
void SeekToNextKeyFrame() {
ASSERT_NE(vpx_ctx_->file, nullptr);
do {
const int status = webm_read_frame(webm_ctx_, &buf_, &buf_sz_);
ASSERT_GE(status, 0) << "webm_read_frame failed";
++frame_;
if (status == 1) {
end_of_file_ = true;
}
} while (!webm_ctx_->is_key_frame && !end_of_file_);
}
const uint8_t *cxdata() const override {
return end_of_file_ ? nullptr : buf_;
}
size_t frame_size() const override { return buf_sz_; }
unsigned int frame_number() const override { return frame_; }
protected:
std::string file_name_;
VpxInputContext *vpx_ctx_;
WebmInputContext *webm_ctx_;
uint8_t *buf_;
size_t buf_sz_;
unsigned int frame_;
bool end_of_file_;
};
} // namespace libvpx_test
#endif // VPX_TEST_WEBM_VIDEO_SOURCE_H_
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