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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_BASE_VIDEO_DECODER_CONFIG_H_
#define MEDIA_BASE_VIDEO_DECODER_CONFIG_H_
#include <stdint.h>
#include <string>
#include <vector>
#include "base/macros.h"
#include "base/optional.h"
#include "media/base/encryption_scheme.h"
#include "media/base/hdr_metadata.h"
#include "media/base/media_export.h"
#include "media/base/video_codecs.h"
#include "media/base/video_color_space.h"
#include "media/base/video_types.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size.h"
namespace media {
MEDIA_EXPORT VideoCodec
VideoCodecProfileToVideoCodec(VideoCodecProfile profile);
class MEDIA_EXPORT VideoDecoderConfig {
public:
// Constructs an uninitialized object. Clients should call Initialize() with
// appropriate values before using.
VideoDecoderConfig();
// Constructs an initialized object. It is acceptable to pass in NULL for
// |extra_data|, otherwise the memory is copied.
VideoDecoderConfig(VideoCodec codec,
VideoCodecProfile profile,
VideoPixelFormat format,
ColorSpace color_space,
const gfx::Size& coded_size,
const gfx::Rect& visible_rect,
const gfx::Size& natural_size,
const std::vector<uint8_t>& extra_data,
const EncryptionScheme& encryption_scheme);
VideoDecoderConfig(const VideoDecoderConfig& other);
~VideoDecoderConfig();
// Resets the internal state of this object.
void Initialize(VideoCodec codec,
VideoCodecProfile profile,
VideoPixelFormat format,
ColorSpace color_space,
const gfx::Size& coded_size,
const gfx::Rect& visible_rect,
const gfx::Size& natural_size,
const std::vector<uint8_t>& extra_data,
const EncryptionScheme& encryption_scheme);
// Returns true if this object has appropriate configuration values, false
// otherwise.
bool IsValidConfig() const;
// Returns true if all fields in |config| match this config.
// Note: The contents of |extra_data_| are compared not the raw pointers.
bool Matches(const VideoDecoderConfig& config) const;
// Returns a human-readable string describing |*this|. For debugging & test
// output only.
std::string AsHumanReadableString() const;
std::string GetHumanReadableCodecName() const;
static std::string GetHumanReadableProfile(VideoCodecProfile profile);
VideoCodec codec() const { return codec_; }
VideoCodecProfile profile() const { return profile_; }
// Video format used to determine YUV buffer sizes.
VideoPixelFormat format() const { return format_; }
// The default color space of the decoded frames. Decoders should output
// frames tagged with this color space unless they find a different value in
// the bitstream.
ColorSpace color_space() const { return color_space_; }
// Deprecated. TODO(wolenetz): Remove. See https://crbug.com/665539.
// Width and height of video frame immediately post-decode. Not all pixels
// in this region are valid.
gfx::Size coded_size() const { return coded_size_; }
// Region of |coded_size_| that is visible.
gfx::Rect visible_rect() const { return visible_rect_; }
// Final visible width and height of a video frame with aspect ratio taken
// into account.
gfx::Size natural_size() const { return natural_size_; }
// Optional byte data required to initialize video decoders, such as H.264
// AVCC data.
void SetExtraData(const std::vector<uint8_t>& extra_data);
const std::vector<uint8_t>& extra_data() const { return extra_data_; }
// Whether the video stream is potentially encrypted.
// Note that in a potentially encrypted video stream, individual buffers
// can be encrypted or not encrypted.
bool is_encrypted() const { return encryption_scheme_.is_encrypted(); }
// Encryption scheme used for encrypted buffers.
const EncryptionScheme& encryption_scheme() const {
return encryption_scheme_;
}
void set_color_space_info(const VideoColorSpace& color_space_info);
VideoColorSpace color_space_info() const;
void set_hdr_metadata(const HDRMetadata& hdr_metadata);
base::Optional<HDRMetadata> hdr_metadata() const;
// Sets the config to be encrypted or not encrypted manually. This can be
// useful for decryptors that decrypts an encrypted stream to a clear stream.
void SetIsEncrypted(bool is_encrypted);
private:
VideoCodec codec_;
VideoCodecProfile profile_;
VideoPixelFormat format_;
// TODO(servolk): Deprecated, use color_space_info_ instead.
ColorSpace color_space_;
// Deprecated. TODO(wolenetz): Remove. See https://crbug.com/665539.
gfx::Size coded_size_;
gfx::Rect visible_rect_;
gfx::Size natural_size_;
std::vector<uint8_t> extra_data_;
EncryptionScheme encryption_scheme_;
VideoColorSpace color_space_info_;
base::Optional<HDRMetadata> hdr_metadata_;
// Not using DISALLOW_COPY_AND_ASSIGN here intentionally to allow the compiler
// generated copy constructor and assignment operator. Since the extra data is
// typically small, the performance impact is minimal.
};
} // namespace media
#endif // MEDIA_BASE_VIDEO_DECODER_CONFIG_H_
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