mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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31fca20085
This updates our in-tree copy of libvpx to the v1.3.0 git tag (2e88f2f2ec777259bda1714e72f1ecd2519bceb5) libvpx 1.3.0 adds support for VP9. VP9 support is built but not yet exposed with this commit. Our update.sh script is replaced with update.py that can update the build system to a given git commit. - checkout out upstream git - create platform dependend config files - add/remove changed libvpx files - update moz.build - warn about new build categories in libvpx
559 lines
19 KiB
C
559 lines
19 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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/*!\defgroup codec Common Algorithm Interface
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* This abstraction allows applications to easily support multiple video
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* formats with minimal code duplication. This section describes the interface
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* common to all codecs (both encoders and decoders).
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* @{
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*/
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/*!\file
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* \brief Describes the codec algorithm interface to applications.
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*
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* This file describes the interface between an application and a
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* video codec algorithm.
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*
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* An application instantiates a specific codec instance by using
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* vpx_codec_init() and a pointer to the algorithm's interface structure:
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* <pre>
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* my_app.c:
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* extern vpx_codec_iface_t my_codec;
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* {
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* vpx_codec_ctx_t algo;
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* res = vpx_codec_init(&algo, &my_codec);
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* }
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* </pre>
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*
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* Once initialized, the instance is manged using other functions from
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* the vpx_codec_* family.
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*/
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#ifndef VPX_CODEC_H
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#define VPX_CODEC_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "vpx_integer.h"
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#include "vpx_image.h"
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/*!\brief Decorator indicating a function is deprecated */
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#ifndef DEPRECATED
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#if defined(__GNUC__) && __GNUC__
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#define DEPRECATED __attribute__ ((deprecated))
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#elif defined(_MSC_VER)
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#define DEPRECATED
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#else
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#define DEPRECATED
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#endif
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#endif /* DEPRECATED */
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#ifndef DECLSPEC_DEPRECATED
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#if defined(__GNUC__) && __GNUC__
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#define DECLSPEC_DEPRECATED /**< \copydoc #DEPRECATED */
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#elif defined(_MSC_VER)
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#define DECLSPEC_DEPRECATED __declspec(deprecated) /**< \copydoc #DEPRECATED */
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#else
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#define DECLSPEC_DEPRECATED /**< \copydoc #DEPRECATED */
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#endif
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#endif /* DECLSPEC_DEPRECATED */
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/*!\brief Decorator indicating a function is potentially unused */
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#ifdef UNUSED
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#elif __GNUC__
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#define UNUSED __attribute__ ((unused))
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#else
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#define UNUSED
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#endif
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/*!\brief Current ABI version number
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*
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* \internal
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* If this file is altered in any way that changes the ABI, this value
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* must be bumped. Examples include, but are not limited to, changing
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* types, removing or reassigning enums, adding/removing/rearranging
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* fields to structures
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*/
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#define VPX_CODEC_ABI_VERSION (2 + VPX_IMAGE_ABI_VERSION) /**<\hideinitializer*/
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/*!\brief Algorithm return codes */
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typedef enum {
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/*!\brief Operation completed without error */
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VPX_CODEC_OK,
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/*!\brief Unspecified error */
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VPX_CODEC_ERROR,
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/*!\brief Memory operation failed */
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VPX_CODEC_MEM_ERROR,
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/*!\brief ABI version mismatch */
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VPX_CODEC_ABI_MISMATCH,
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/*!\brief Algorithm does not have required capability */
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VPX_CODEC_INCAPABLE,
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/*!\brief The given bitstream is not supported.
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*
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* The bitstream was unable to be parsed at the highest level. The decoder
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* is unable to proceed. This error \ref SHOULD be treated as fatal to the
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* stream. */
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VPX_CODEC_UNSUP_BITSTREAM,
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/*!\brief Encoded bitstream uses an unsupported feature
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*
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* The decoder does not implement a feature required by the encoder. This
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* return code should only be used for features that prevent future
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* pictures from being properly decoded. This error \ref MAY be treated as
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* fatal to the stream or \ref MAY be treated as fatal to the current GOP.
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*/
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VPX_CODEC_UNSUP_FEATURE,
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/*!\brief The coded data for this stream is corrupt or incomplete
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*
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* There was a problem decoding the current frame. This return code
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* should only be used for failures that prevent future pictures from
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* being properly decoded. This error \ref MAY be treated as fatal to the
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* stream or \ref MAY be treated as fatal to the current GOP. If decoding
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* is continued for the current GOP, artifacts may be present.
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*/
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VPX_CODEC_CORRUPT_FRAME,
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/*!\brief An application-supplied parameter is not valid.
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*
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*/
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VPX_CODEC_INVALID_PARAM,
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/*!\brief An iterator reached the end of list.
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*
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*/
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VPX_CODEC_LIST_END
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}
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vpx_codec_err_t;
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/*! \brief Codec capabilities bitfield
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*
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* Each codec advertises the capabilities it supports as part of its
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* ::vpx_codec_iface_t interface structure. Capabilities are extra interfaces
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* or functionality, and are not required to be supported.
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*
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* The available flags are specified by VPX_CODEC_CAP_* defines.
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*/
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typedef long vpx_codec_caps_t;
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#define VPX_CODEC_CAP_DECODER 0x1 /**< Is a decoder */
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#define VPX_CODEC_CAP_ENCODER 0x2 /**< Is an encoder */
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#define VPX_CODEC_CAP_XMA 0x4 /**< Supports eXternal Memory Allocation */
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/*! \brief Initialization-time Feature Enabling
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*
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* Certain codec features must be known at initialization time, to allow for
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* proper memory allocation.
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*
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* The available flags are specified by VPX_CODEC_USE_* defines.
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*/
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typedef long vpx_codec_flags_t;
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#define VPX_CODEC_USE_XMA 0x00000001 /**< Use eXternal Memory Allocation mode */
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/*!\brief Codec interface structure.
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*
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* Contains function pointers and other data private to the codec
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* implementation. This structure is opaque to the application.
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*/
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typedef const struct vpx_codec_iface vpx_codec_iface_t;
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/*!\brief Codec private data structure.
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*
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* Contains data private to the codec implementation. This structure is opaque
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* to the application.
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*/
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typedef struct vpx_codec_priv vpx_codec_priv_t;
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/*!\brief Iterator
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*
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* Opaque storage used for iterating over lists.
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*/
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typedef const void *vpx_codec_iter_t;
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/*!\brief Codec context structure
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*
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* All codecs \ref MUST support this context structure fully. In general,
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* this data should be considered private to the codec algorithm, and
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* not be manipulated or examined by the calling application. Applications
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* may reference the 'name' member to get a printable description of the
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* algorithm.
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*/
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typedef struct vpx_codec_ctx {
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const char *name; /**< Printable interface name */
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vpx_codec_iface_t *iface; /**< Interface pointers */
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vpx_codec_err_t err; /**< Last returned error */
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const char *err_detail; /**< Detailed info, if available */
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vpx_codec_flags_t init_flags; /**< Flags passed at init time */
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union {
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struct vpx_codec_dec_cfg *dec; /**< Decoder Configuration Pointer */
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struct vpx_codec_enc_cfg *enc; /**< Encoder Configuration Pointer */
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void *raw;
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} config; /**< Configuration pointer aliasing union */
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vpx_codec_priv_t *priv; /**< Algorithm private storage */
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} vpx_codec_ctx_t;
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/*
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* Library Version Number Interface
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*
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* For example, see the following sample return values:
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* vpx_codec_version() (1<<16 | 2<<8 | 3)
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* vpx_codec_version_str() "v1.2.3-rc1-16-gec6a1ba"
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* vpx_codec_version_extra_str() "rc1-16-gec6a1ba"
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*/
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/*!\brief Return the version information (as an integer)
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*
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* Returns a packed encoding of the library version number. This will only include
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* the major.minor.patch component of the version number. Note that this encoded
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* value should be accessed through the macros provided, as the encoding may change
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* in the future.
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*
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*/
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int vpx_codec_version(void);
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#define VPX_VERSION_MAJOR(v) ((v>>16)&0xff) /**< extract major from packed version */
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#define VPX_VERSION_MINOR(v) ((v>>8)&0xff) /**< extract minor from packed version */
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#define VPX_VERSION_PATCH(v) ((v>>0)&0xff) /**< extract patch from packed version */
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/*!\brief Return the version major number */
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#define vpx_codec_version_major() ((vpx_codec_version()>>16)&0xff)
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/*!\brief Return the version minor number */
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#define vpx_codec_version_minor() ((vpx_codec_version()>>8)&0xff)
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/*!\brief Return the version patch number */
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#define vpx_codec_version_patch() ((vpx_codec_version()>>0)&0xff)
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/*!\brief Return the version information (as a string)
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*
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* Returns a printable string containing the full library version number. This may
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* contain additional text following the three digit version number, as to indicate
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* release candidates, prerelease versions, etc.
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*
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*/
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const char *vpx_codec_version_str(void);
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/*!\brief Return the version information (as a string)
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*
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* Returns a printable "extra string". This is the component of the string returned
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* by vpx_codec_version_str() following the three digit version number.
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*
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*/
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const char *vpx_codec_version_extra_str(void);
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/*!\brief Return the build configuration
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*
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* Returns a printable string containing an encoded version of the build
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* configuration. This may be useful to vpx support.
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*
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*/
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const char *vpx_codec_build_config(void);
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/*!\brief Return the name for a given interface
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*
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* Returns a human readable string for name of the given codec interface.
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*
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* \param[in] iface Interface pointer
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*
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*/
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const char *vpx_codec_iface_name(vpx_codec_iface_t *iface);
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/*!\brief Convert error number to printable string
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*
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* Returns a human readable string for the last error returned by the
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* algorithm. The returned error will be one line and will not contain
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* any newline characters.
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*
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*
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* \param[in] err Error number.
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*
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*/
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const char *vpx_codec_err_to_string(vpx_codec_err_t err);
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/*!\brief Retrieve error synopsis for codec context
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*
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* Returns a human readable string for the last error returned by the
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* algorithm. The returned error will be one line and will not contain
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* any newline characters.
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*
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*
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* \param[in] ctx Pointer to this instance's context.
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*
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*/
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const char *vpx_codec_error(vpx_codec_ctx_t *ctx);
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/*!\brief Retrieve detailed error information for codec context
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*
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* Returns a human readable string providing detailed information about
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* the last error.
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*
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* \param[in] ctx Pointer to this instance's context.
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*
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* \retval NULL
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* No detailed information is available.
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*/
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const char *vpx_codec_error_detail(vpx_codec_ctx_t *ctx);
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/* REQUIRED FUNCTIONS
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*
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* The following functions are required to be implemented for all codecs.
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* They represent the base case functionality expected of all codecs.
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*/
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/*!\brief Destroy a codec instance
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*
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* Destroys a codec context, freeing any associated memory buffers.
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*
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* \param[in] ctx Pointer to this instance's context
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*
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* \retval #VPX_CODEC_OK
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* The codec algorithm initialized.
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* \retval #VPX_CODEC_MEM_ERROR
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* Memory allocation failed.
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*/
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vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx);
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/*!\brief Get the capabilities of an algorithm.
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*
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* Retrieves the capabilities bitfield from the algorithm's interface.
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*
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* \param[in] iface Pointer to the algorithm interface
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*
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*/
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vpx_codec_caps_t vpx_codec_get_caps(vpx_codec_iface_t *iface);
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/*!\brief Control algorithm
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*
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* This function is used to exchange algorithm specific data with the codec
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* instance. This can be used to implement features specific to a particular
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* algorithm.
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*
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* This wrapper function dispatches the request to the helper function
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* associated with the given ctrl_id. It tries to call this function
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* transparently, but will return #VPX_CODEC_ERROR if the request could not
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* be dispatched.
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*
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* Note that this function should not be used directly. Call the
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* #vpx_codec_control wrapper macro instead.
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*
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* \param[in] ctx Pointer to this instance's context
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* \param[in] ctrl_id Algorithm specific control identifier
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*
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* \retval #VPX_CODEC_OK
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* The control request was processed.
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* \retval #VPX_CODEC_ERROR
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* The control request was not processed.
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* \retval #VPX_CODEC_INVALID_PARAM
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* The data was not valid.
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*/
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vpx_codec_err_t vpx_codec_control_(vpx_codec_ctx_t *ctx,
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int ctrl_id,
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...);
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#if defined(VPX_DISABLE_CTRL_TYPECHECKS) && VPX_DISABLE_CTRL_TYPECHECKS
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# define vpx_codec_control(ctx,id,data) vpx_codec_control_(ctx,id,data)
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# define VPX_CTRL_USE_TYPE(id, typ)
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# define VPX_CTRL_USE_TYPE_DEPRECATED(id, typ)
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# define VPX_CTRL_VOID(id, typ)
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#else
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/*!\brief vpx_codec_control wrapper macro
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*
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* This macro allows for type safe conversions across the variadic parameter
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* to vpx_codec_control_().
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*
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* \internal
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* It works by dispatching the call to the control function through a wrapper
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* function named with the id parameter.
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*/
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# define vpx_codec_control(ctx,id,data) vpx_codec_control_##id(ctx,id,data)\
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/**<\hideinitializer*/
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/*!\brief vpx_codec_control type definition macro
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*
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* This macro allows for type safe conversions across the variadic parameter
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* to vpx_codec_control_(). It defines the type of the argument for a given
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* control identifier.
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*
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* \internal
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* It defines a static function with
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* the correctly typed arguments as a wrapper to the type-unsafe internal
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* function.
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*/
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# define VPX_CTRL_USE_TYPE(id, typ) \
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static vpx_codec_err_t \
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vpx_codec_control_##id(vpx_codec_ctx_t*, int, typ) UNUSED;\
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\
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static vpx_codec_err_t \
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vpx_codec_control_##id(vpx_codec_ctx_t *ctx, int ctrl_id, typ data) {\
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return vpx_codec_control_(ctx, ctrl_id, data);\
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} /**<\hideinitializer*/
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/*!\brief vpx_codec_control deprecated type definition macro
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*
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* Like #VPX_CTRL_USE_TYPE, but indicates that the specified control is
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* deprecated and should not be used. Consult the documentation for your
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* codec for more information.
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*
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* \internal
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* It defines a static function with the correctly typed arguments as a
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* wrapper to the type-unsafe internal function.
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*/
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# define VPX_CTRL_USE_TYPE_DEPRECATED(id, typ) \
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DECLSPEC_DEPRECATED static vpx_codec_err_t \
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vpx_codec_control_##id(vpx_codec_ctx_t*, int, typ) DEPRECATED UNUSED;\
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\
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DECLSPEC_DEPRECATED static vpx_codec_err_t \
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vpx_codec_control_##id(vpx_codec_ctx_t *ctx, int ctrl_id, typ data) {\
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return vpx_codec_control_(ctx, ctrl_id, data);\
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} /**<\hideinitializer*/
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/*!\brief vpx_codec_control void type definition macro
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*
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* This macro allows for type safe conversions across the variadic parameter
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* to vpx_codec_control_(). It indicates that a given control identifier takes
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* no argument.
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*
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* \internal
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* It defines a static function without a data argument as a wrapper to the
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* type-unsafe internal function.
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*/
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# define VPX_CTRL_VOID(id) \
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static vpx_codec_err_t \
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vpx_codec_control_##id(vpx_codec_ctx_t*, int) UNUSED;\
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\
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static vpx_codec_err_t \
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vpx_codec_control_##id(vpx_codec_ctx_t *ctx, int ctrl_id) {\
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return vpx_codec_control_(ctx, ctrl_id);\
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} /**<\hideinitializer*/
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#endif
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/*!\defgroup cap_xma External Memory Allocation Functions
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*
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* The following functions are required to be implemented for all codecs
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* that advertise the VPX_CODEC_CAP_XMA capability. Calling these functions
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* for codecs that don't advertise this capability will result in an error
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* code being returned, usually VPX_CODEC_INCAPABLE
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* @{
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*/
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/*!\brief Memory Map Entry
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*
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* This structure is used to contain the properties of a memory segment. It
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* is populated by the codec in the request phase, and by the calling
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* application once the requested allocation has been performed.
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*/
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typedef struct vpx_codec_mmap {
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/*
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* The following members are set by the codec when requesting a segment
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*/
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unsigned int id; /**< identifier for the segment's contents */
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unsigned long sz; /**< size of the segment, in bytes */
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unsigned int align; /**< required alignment of the segment, in bytes */
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unsigned int flags; /**< bitfield containing segment properties */
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#define VPX_CODEC_MEM_ZERO 0x1 /**< Segment must be zeroed by allocation */
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#define VPX_CODEC_MEM_WRONLY 0x2 /**< Segment need not be readable */
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#define VPX_CODEC_MEM_FAST 0x4 /**< Place in fast memory, if available */
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/* The following members are to be filled in by the allocation function */
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void *base; /**< pointer to the allocated segment */
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void (*dtor)(struct vpx_codec_mmap *map); /**< destructor to call */
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void *priv; /**< allocator private storage */
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} vpx_codec_mmap_t; /**< alias for struct vpx_codec_mmap */
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/*!\brief Iterate over the list of segments to allocate.
|
|
*
|
|
* Iterates over a list of the segments to allocate. The iterator storage
|
|
* should be initialized to NULL to start the iteration. Iteration is complete
|
|
* when this function returns VPX_CODEC_LIST_END. The amount of memory needed to
|
|
* allocate is dependent upon the size of the encoded stream. In cases where the
|
|
* stream is not available at allocation time, a fixed size must be requested.
|
|
* The codec will not be able to operate on streams larger than the size used at
|
|
* allocation time.
|
|
*
|
|
* \param[in] ctx Pointer to this instance's context.
|
|
* \param[out] mmap Pointer to the memory map entry to populate.
|
|
* \param[in,out] iter Iterator storage, initialized to NULL
|
|
*
|
|
* \retval #VPX_CODEC_OK
|
|
* The memory map entry was populated.
|
|
* \retval #VPX_CODEC_ERROR
|
|
* Codec does not support XMA mode.
|
|
* \retval #VPX_CODEC_MEM_ERROR
|
|
* Unable to determine segment size from stream info.
|
|
*/
|
|
vpx_codec_err_t vpx_codec_get_mem_map(vpx_codec_ctx_t *ctx,
|
|
vpx_codec_mmap_t *mmap,
|
|
vpx_codec_iter_t *iter);
|
|
|
|
|
|
/*!\brief Identify allocated segments to codec instance
|
|
*
|
|
* Stores a list of allocated segments in the codec. Segments \ref MUST be
|
|
* passed in the order they are read from vpx_codec_get_mem_map(), but may be
|
|
* passed in groups of any size. Segments \ref MUST be set only once. The
|
|
* allocation function \ref MUST ensure that the vpx_codec_mmap_t::base member
|
|
* is non-NULL. If the segment requires cleanup handling (e.g., calling free()
|
|
* or close()) then the vpx_codec_mmap_t::dtor member \ref MUST be populated.
|
|
*
|
|
* \param[in] ctx Pointer to this instance's context.
|
|
* \param[in] mmaps Pointer to the first memory map entry in the list.
|
|
* \param[in] num_maps Number of entries being set at this time
|
|
*
|
|
* \retval #VPX_CODEC_OK
|
|
* The segment was stored in the codec context.
|
|
* \retval #VPX_CODEC_INCAPABLE
|
|
* Codec does not support XMA mode.
|
|
* \retval #VPX_CODEC_MEM_ERROR
|
|
* Segment base address was not set, or segment was already stored.
|
|
|
|
*/
|
|
vpx_codec_err_t vpx_codec_set_mem_map(vpx_codec_ctx_t *ctx,
|
|
vpx_codec_mmap_t *mmaps,
|
|
unsigned int num_maps);
|
|
|
|
/*!@} - end defgroup cap_xma*/
|
|
/*!@} - end defgroup codec*/
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|
|
|