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/*
* Copyright (C) 2017-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#ifndef C_API_ADDONINSTANCE_VIDEOCODEC_H
#define C_API_ADDONINSTANCE_VIDEOCODEC_H
#include "../addon_base.h"
#include "inputstream/demux_packet.h"
#include "inputstream/stream_codec.h"
#include "inputstream/stream_crypto.h"
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
//============================================================================
/// @ingroup cpp_kodi_addon_videocodec_Defs
/// @brief Return values used by video decoder interface
enum VIDEOCODEC_RETVAL
{
/// @brief Noop
VC_NONE = 0,
/// @brief An error occured, no other messages will be returned
VC_ERROR,
/// @brief The decoder needs more data
VC_BUFFER,
/// @brief The decoder got a picture
VC_PICTURE,
/// @brief The decoder signals EOF
VC_EOF,
};
//----------------------------------------------------------------------------
//============================================================================
/// @ingroup cpp_kodi_addon_videocodec_Defs_VideoCodecInitdata
/// @brief The video stream representations requested by Kodi
///
enum VIDEOCODEC_FORMAT
{
/// @brief Unknown types, this is used to declare the end of a list of
/// requested types
VIDEOCODEC_FORMAT_UNKNOWN = 0,
/// @brief YV12 4:2:0 YCrCb planar format
VIDEOCODEC_FORMAT_YV12,
/// @brief These formats are identical to YV12 except that the U and V plane
/// order is reversed.
VIDEOCODEC_FORMAT_I420,
/// @brief The maximum value to use in a list.
VIDEOCODEC_FORMAT_MAXFORMATS
};
//----------------------------------------------------------------------------
//============================================================================
/// @ingroup cpp_kodi_addon_videocodec_Defs_VideoCodecInitdata
/// @brief Video codec types that can be requested from Kodi
///
enum VIDEOCODEC_TYPE
{
/// @brief Unknown or other type requested
///
VIDEOCODEC_UNKNOWN = 0,
/// @brief [VP8](https://en.wikipedia.org/wiki/VP8) video coding format
///
VIDEOCODEC_VP8,
/// @brief [Advanced Video Coding (AVC)](https://en.wikipedia.org/wiki/Advanced_Video_Coding),
/// also referred to as H.264 or [MPEG-4](https://en.wikipedia.org/wiki/MPEG-4)
/// Part 10, Advanced Video Coding (MPEG-4 AVC).
VIDEOCODEC_H264,
/// @brief [VP9](https://en.wikipedia.org/wiki/VP9) video coding format\n
/// \n
/// VP9 is the successor to VP8 and competes mainly with MPEG's
/// [High Efficiency Video Coding](https://en.wikipedia.org/wiki/High_Efficiency_Video_Coding)
/// (HEVC/H.265).
VIDEOCODEC_VP9
};
//----------------------------------------------------------------------------
//============================================================================
/// @ingroup cpp_kodi_addon_videocodec_Defs_VIDEOCODEC_PICTURE
/// @brief YUV Plane identification pointers
///
/// YUV is a color encoding system typically used as part of a color image pipeline.
///
/// These are used to access stored data in @ref VIDEOCODEC_PICTURE::planeOffsets
/// and @ref VIDEOCODEC_PICTURE::stride.
///
enum VIDEOCODEC_PLANE
{
/// @brief "luminance" component Y (equivalent to grey scale)
VIDEOCODEC_PICTURE_Y_PLANE = 0,
/// @brief "chrominance" component U (blue projection)
VIDEOCODEC_PICTURE_U_PLANE,
/// @brief "chrominance" component V (red projection)
VIDEOCODEC_PICTURE_V_PLANE,
/// @brief The maximum value to use in a list.
VIDEOCODEC_PICTURE_MAXPLANES = 3,
};
//----------------------------------------------------------------------------
//============================================================================
/// @ingroup cpp_kodi_addon_videocodec_Defs_VIDEOCODEC_PICTURE
/// @brief Video coded process flags, used to perform special operations in
/// stream calls.
///
/// These are used to access stored data in @ref VIDEOCODEC_PICTURE::flags.
///
/// @note These variables are bit flags which are created using "|" can be used together.
///
enum VIDEOCODEC_PICTURE_FLAG
{
/// @brief Empty and nothing defined
VIDEOCODEC_PICTURE_FLAG_NONE = 0,
/// @brief Drop in decoder
VIDEOCODEC_PICTURE_FLAG_DROP = (1 << 0),
/// @brief Squeeze out pictured without feeding new packets
VIDEOCODEC_PICTURE_FLAG_DRAIN = (1 << 1),
};
//----------------------------------------------------------------------------
//============================================================================
/// @defgroup cpp_kodi_addon_videocodec_Defs_VIDEOCODEC_PICTURE struct VIDEOCODEC_PICTURE
/// @ingroup cpp_kodi_addon_videocodec_Defs
/// @brief Data structure which is given to the addon when a decoding call is made.
///
///@{
struct VIDEOCODEC_PICTURE
{
/// @brief The video format declared with @ref VIDEOCODEC_FORMAT and to be
/// used on the addon.
enum VIDEOCODEC_FORMAT videoFormat;
/// @brief Video coded process flags, used to perform special operations in
/// stream calls.
///
/// Possible flags are declared here @ref VIDEOCODEC_PICTURE_FLAGS.
uint32_t flags;
/// @brief Picture width.
uint32_t width;
/// @brief Picture height.
uint32_t height;
/// @brief Data to be decoded in the addon.
uint8_t* decodedData;
/// @brief Size of the data given with @ref decodedData
size_t decodedDataSize;
/// @brief YUV color plane calculation array.
///
/// This includes the three values of the YUV and can be identified using
/// @ref VIDEOCODEC_PLANE.
uint32_t planeOffsets[VIDEOCODEC_PICTURE_MAXPLANES];
/// @brief YUV color stride calculation array
///
/// This includes the three values of the YUV and can be identified using
/// @ref VIDEOCODEC_PLANE.
uint32_t stride[VIDEOCODEC_PICTURE_MAXPLANES];
/// @brief Picture presentation time stamp (PTS).
int64_t pts;
/// @brief This is used to save the related handle from Kodi.
///
/// To handle the input stream buffer, this is given by Kodi using
/// @ref kodi::addon::CInstanceVideoCodec::GetFrameBuffer and must be
/// released again using @ref kodi::addon::CInstanceVideoCodec::ReleaseFrameBuffer.
KODI_HANDLE videoBufferHandle;
};
///@}
//----------------------------------------------------------------------------
struct VIDEOCODEC_INITDATA
{
enum VIDEOCODEC_TYPE codec;
enum STREAMCODEC_PROFILE codecProfile;
enum VIDEOCODEC_FORMAT* videoFormats;
uint32_t width;
uint32_t height;
const uint8_t* extraData;
unsigned int extraDataSize;
struct STREAM_CRYPTO_SESSION cryptoSession;
};
// this are properties given to the addon on create
// at this time we have no parameters for the addon
typedef struct AddonProps_VideoCodec
{
int dummy;
} AddonProps_VideoCodec;
struct AddonInstance_VideoCodec;
typedef struct KodiToAddonFuncTable_VideoCodec
{
KODI_HANDLE addonInstance;
//! @brief Opens a codec
bool(__cdecl* open)(const struct AddonInstance_VideoCodec* instance,
struct VIDEOCODEC_INITDATA* initData);
//! @brief Reconfigures a codec
bool(__cdecl* reconfigure)(const struct AddonInstance_VideoCodec* instance,
struct VIDEOCODEC_INITDATA* initData);
//! @brief Feed codec if requested from GetPicture() (return VC_BUFFER)
bool(__cdecl* add_data)(const struct AddonInstance_VideoCodec* instance,
const struct DEMUX_PACKET* packet);
//! @brief Get a decoded picture / request new data
enum VIDEOCODEC_RETVAL(__cdecl* get_picture)(const struct AddonInstance_VideoCodec* instance,
struct VIDEOCODEC_PICTURE* picture);
//! @brief Get the name of this video decoder
const char*(__cdecl* get_name)(const struct AddonInstance_VideoCodec* instance);
//! @brief Reset the codec
void(__cdecl* reset)(const struct AddonInstance_VideoCodec* instance);
} KodiToAddonFuncTable_VideoCodec;
typedef struct AddonToKodiFuncTable_VideoCodec
{
KODI_HANDLE kodiInstance;
bool (*get_frame_buffer)(void* kodiInstance, struct VIDEOCODEC_PICTURE* picture);
void (*release_frame_buffer)(void* kodiInstance, void* buffer);
} AddonToKodiFuncTable_VideoCodec;
typedef struct AddonInstance_VideoCodec
{
struct AddonProps_VideoCodec* props;
struct AddonToKodiFuncTable_VideoCodec* toKodi;
struct KodiToAddonFuncTable_VideoCodec* toAddon;
} AddonInstance_VideoCodec;
#ifdef __cplusplus
} /* extern "C" */
#endif /* __cplusplus */
#endif /* !C_API_ADDONINSTANCE_VIDEOCODEC_H */
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