зеркало из https://github.com/mozilla/gecko-dev.git
97 строки
2.9 KiB
C++
97 строки
2.9 KiB
C++
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#ifndef AOM_TEST_WEBM_VIDEO_SOURCE_H_
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#define AOM_TEST_WEBM_VIDEO_SOURCE_H_
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#include <cstdarg>
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#include <cstdio>
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#include <cstdlib>
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#include <new>
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#include <string>
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#include "common/tools_common.h"
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#include "common/webmdec.h"
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#include "test/video_source.h"
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namespace libaom_test {
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// This class extends VideoSource to allow parsing of WebM files,
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// so that we can do actual file decodes.
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class WebMVideoSource : public CompressedVideoSource {
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public:
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explicit WebMVideoSource(const std::string &file_name)
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: file_name_(file_name), aom_ctx_(new AvxInputContext()),
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webm_ctx_(new WebmInputContext()), buf_(NULL), buf_sz_(0), frame_sz_(0),
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frame_number_(0), end_of_file_(false) {}
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virtual ~WebMVideoSource() {
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if (aom_ctx_->file != NULL) fclose(aom_ctx_->file);
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webm_free(webm_ctx_);
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delete aom_ctx_;
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delete webm_ctx_;
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}
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virtual void Init() {}
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virtual void Begin() {
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aom_ctx_->file = OpenTestDataFile(file_name_);
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ASSERT_TRUE(aom_ctx_->file != NULL)
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<< "Input file open failed. Filename: " << file_name_;
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ASSERT_EQ(file_is_webm(webm_ctx_, aom_ctx_), 1) << "file is not WebM";
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FillFrame();
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}
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virtual void Next() {
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++frame_number_;
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FillFrame();
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}
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void FillFrame() {
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ASSERT_TRUE(aom_ctx_->file != NULL);
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const int status = webm_read_frame(webm_ctx_, &buf_, &frame_sz_, &buf_sz_);
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ASSERT_GE(status, 0) << "webm_read_frame failed";
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if (status == 1) {
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end_of_file_ = true;
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}
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}
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void SeekToNextKeyFrame() {
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ASSERT_TRUE(aom_ctx_->file != NULL);
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do {
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const int status =
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webm_read_frame(webm_ctx_, &buf_, &frame_sz_, &buf_sz_);
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ASSERT_GE(status, 0) << "webm_read_frame failed";
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++frame_number_;
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if (status == 1) {
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end_of_file_ = true;
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}
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} while (!webm_ctx_->is_key_frame && !end_of_file_);
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}
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virtual const uint8_t *cxdata() const { return end_of_file_ ? NULL : buf_; }
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virtual size_t frame_size() const { return frame_sz_; }
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virtual unsigned int frame_number() const { return frame_number_; }
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protected:
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std::string file_name_;
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AvxInputContext *aom_ctx_;
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WebmInputContext *webm_ctx_;
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uint8_t *buf_; // Owned by webm_ctx_ and freed when webm_ctx_ is freed.
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size_t buf_sz_;
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size_t frame_sz_;
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unsigned int frame_number_;
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bool end_of_file_;
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};
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} // namespace libaom_test
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#endif // AOM_TEST_WEBM_VIDEO_SOURCE_H_
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