audio_video_metadata_extractor.cc | Explore in Territory

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "media/filters/audio_video_metadata_extractor.h"

#include "base/functional/bind.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/time/time.h"
#include "media/ffmpeg/ffmpeg_common.h"
#include "media/filters/blocking_url_protocol.h"
#include "media/filters/ffmpeg_glue.h"

namespace media {

namespace {

void OnError(bool* succeeded) { … }

// Returns true if the |tag| matches |expected_key|.
bool ExtractString(AVDictionaryEntry* tag,
                   const char* expected_key,
                   std::string* destination) { … }

// Returns true if the |tag| matches |expected_key|.
bool ExtractInt(AVDictionaryEntry* tag,
                const char* expected_key,
                int* destination) { … }

// Set attached image size limit to 4MB. Chosen arbitrarily.
const int kAttachedImageSizeLimit = …;

}  // namespace

AudioVideoMetadataExtractor::StreamInfo::StreamInfo() = default;

AudioVideoMetadataExtractor::StreamInfo::StreamInfo(const StreamInfo& other) =
    default;

AudioVideoMetadataExtractor::StreamInfo::~StreamInfo() = default;

AudioVideoMetadataExtractor::AudioVideoMetadataExtractor()
    : … { … }

AudioVideoMetadataExtractor::~AudioVideoMetadataExtractor() = default;

bool AudioVideoMetadataExtractor::Extract(DataSource* source,
                                          bool extract_attached_images) { … }

bool AudioVideoMetadataExtractor::has_duration() const { … }

double AudioVideoMetadataExtractor::duration() const { … }

int AudioVideoMetadataExtractor::width() const { … }

int AudioVideoMetadataExtractor::height() const { … }

int AudioVideoMetadataExtractor::rotation() const { … }

const std::string& AudioVideoMetadataExtractor::album() const { … }

const std::string& AudioVideoMetadataExtractor::artist() const { … }

const std::string& AudioVideoMetadataExtractor::comment() const { … }

const std::string& AudioVideoMetadataExtractor::copyright() const { … }

const std::string& AudioVideoMetadataExtractor::date() const { … }

int AudioVideoMetadataExtractor::disc() const { … }

const std::string& AudioVideoMetadataExtractor::encoder() const { … }

const std::string& AudioVideoMetadataExtractor::encoded_by() const { … }

const std::string& AudioVideoMetadataExtractor::genre() const { … }

const std::string& AudioVideoMetadataExtractor::language() const { … }

const std::string& AudioVideoMetadataExtractor::title() const { … }

int AudioVideoMetadataExtractor::track() const { … }

const std::vector<AudioVideoMetadataExtractor::StreamInfo>&
AudioVideoMetadataExtractor::stream_infos() const { … }

const std::vector<std::string>&
AudioVideoMetadataExtractor::attached_images_bytes() const { … }

void AudioVideoMetadataExtractor::ExtractDictionary(AVDictionary* metadata,
                                                    TagDictionary* raw_tags) { … }

}  // namespace media
chromium/media/filters/audio_video_metadata_extractor.cc
