diff options
Diffstat (limited to 'thirdparties/mac/include/vpx/vpx_decoder.h')
-rwxr-xr-x | thirdparties/mac/include/vpx/vpx_decoder.h | 534 |
1 files changed, 266 insertions, 268 deletions
diff --git a/thirdparties/mac/include/vpx/vpx_decoder.h b/thirdparties/mac/include/vpx/vpx_decoder.h index 7992cc4..d47a21e 100755 --- a/thirdparties/mac/include/vpx/vpx_decoder.h +++ b/thirdparties/mac/include/vpx/vpx_decoder.h @@ -32,24 +32,24 @@ extern "C" { #define VPX_DECODER_H #include "vpx_codec.h" - /*!\brief Current ABI version number - * - * \internal - * If this file is altered in any way that changes the ABI, this value - * must be bumped. Examples include, but are not limited to, changing - * types, removing or reassigning enums, adding/removing/rearranging - * fields to structures - */ +/*!\brief Current ABI version number + * + * \internal + * If this file is altered in any way that changes the ABI, this value + * must be bumped. Examples include, but are not limited to, changing + * types, removing or reassigning enums, adding/removing/rearranging + * fields to structures + */ #define VPX_DECODER_ABI_VERSION (2 + VPX_CODEC_ABI_VERSION) /**<\hideinitializer*/ - /*! \brief Decoder capabilities bitfield - * - * Each decoder advertises the capabilities it supports as part of its - * ::vpx_codec_iface_t interface structure. Capabilities are extra interfaces - * or functionality, and are not required to be supported by a decoder. - * - * The available flags are specified by VPX_CODEC_CAP_* defines. - */ +/*! \brief Decoder capabilities bitfield + * + * Each decoder advertises the capabilities it supports as part of its + * ::vpx_codec_iface_t interface structure. Capabilities are extra interfaces + * or functionality, and are not required to be supported by a decoder. + * + * The available flags are specified by VPX_CODEC_CAP_* defines. + */ #define VPX_CODEC_CAP_PUT_SLICE 0x10000 /**< Will issue put_slice callbacks */ #define VPX_CODEC_CAP_PUT_FRAME 0x20000 /**< Will issue put_frame callbacks */ #define VPX_CODEC_CAP_POSTPROC 0x40000 /**< Can postprocess decoded frame */ @@ -58,13 +58,13 @@ extern "C" { #define VPX_CODEC_CAP_INPUT_FRAGMENTS 0x100000 /**< Can receive encoded frames one fragment at a time */ - /*! \brief Initialization-time Feature Enabling - * - * Certain codec features must be known at initialization time, to allow for - * proper memory allocation. - * - * The available flags are specified by VPX_CODEC_USE_* defines. - */ +/*! \brief Initialization-time Feature Enabling + * + * Certain codec features must be known at initialization time, to allow for + * proper memory allocation. + * + * The available flags are specified by VPX_CODEC_USE_* defines. + */ #define VPX_CODEC_USE_POSTPROC 0x10000 /**< Postprocess decoded frame */ #define VPX_CODEC_USE_ERROR_CONCEALMENT 0x20000 /**< Conceal errors in decoded frames */ @@ -72,255 +72,253 @@ extern "C" { passed to the decoder one fragment at a time */ - /*!\brief Stream properties - * - * This structure is used to query or set properties of the decoded - * stream. Algorithms may extend this structure with data specific - * to their bitstream by setting the sz member appropriately. - */ - typedef struct vpx_codec_stream_info - { - unsigned int sz; /**< Size of this structure */ - unsigned int w; /**< Width (or 0 for unknown/default) */ - unsigned int h; /**< Height (or 0 for unknown/default) */ - unsigned int is_kf; /**< Current frame is a keyframe */ - } vpx_codec_stream_info_t; - - /* REQUIRED FUNCTIONS - * - * The following functions are required to be implemented for all decoders. - * They represent the base case functionality expected of all decoders. - */ - - - /*!\brief Initialization Configurations - * - * This structure is used to pass init time configuration options to the - * decoder. - */ - typedef struct vpx_codec_dec_cfg - { - unsigned int threads; /**< Maximum number of threads to use, default 1 */ - unsigned int w; /**< Width */ - unsigned int h; /**< Height */ - } vpx_codec_dec_cfg_t; /**< alias for struct vpx_codec_dec_cfg */ - - - /*!\brief Initialize a decoder instance - * - * Initializes a decoder context using the given interface. Applications - * should call the vpx_codec_dec_init convenience macro instead of this - * function directly, to ensure that the ABI version number parameter - * is properly initialized. - * - * In XMA mode (activated by setting VPX_CODEC_USE_XMA in the flags - * parameter), the storage pointed to by the cfg parameter must be - * kept readable and stable until all memory maps have been set. - * - * \param[in] ctx Pointer to this instance's context. - * \param[in] iface Pointer to the algorithm interface to use. - * \param[in] cfg Configuration to use, if known. May be NULL. - * \param[in] flags Bitfield of VPX_CODEC_USE_* flags - * \param[in] ver ABI version number. Must be set to - * VPX_DECODER_ABI_VERSION - * \retval #VPX_CODEC_OK - * The decoder algorithm initialized. - * \retval #VPX_CODEC_MEM_ERROR - * Memory allocation failed. - */ - vpx_codec_err_t vpx_codec_dec_init_ver(vpx_codec_ctx_t *ctx, - vpx_codec_iface_t *iface, - vpx_codec_dec_cfg_t *cfg, - vpx_codec_flags_t flags, - int ver); - - /*!\brief Convenience macro for vpx_codec_dec_init_ver() - * - * Ensures the ABI version parameter is properly set. - */ +/*!\brief Stream properties + * + * This structure is used to query or set properties of the decoded + * stream. Algorithms may extend this structure with data specific + * to their bitstream by setting the sz member appropriately. + */ +typedef struct vpx_codec_stream_info { + unsigned int sz; /**< Size of this structure */ + unsigned int w; /**< Width (or 0 for unknown/default) */ + unsigned int h; /**< Height (or 0 for unknown/default) */ + unsigned int is_kf; /**< Current frame is a keyframe */ +} vpx_codec_stream_info_t; + +/* REQUIRED FUNCTIONS + * + * The following functions are required to be implemented for all decoders. + * They represent the base case functionality expected of all decoders. + */ + + +/*!\brief Initialization Configurations + * + * This structure is used to pass init time configuration options to the + * decoder. + */ +typedef struct vpx_codec_dec_cfg { + unsigned int threads; /**< Maximum number of threads to use, default 1 */ + unsigned int w; /**< Width */ + unsigned int h; /**< Height */ +} vpx_codec_dec_cfg_t; /**< alias for struct vpx_codec_dec_cfg */ + + +/*!\brief Initialize a decoder instance + * + * Initializes a decoder context using the given interface. Applications + * should call the vpx_codec_dec_init convenience macro instead of this + * function directly, to ensure that the ABI version number parameter + * is properly initialized. + * + * In XMA mode (activated by setting VPX_CODEC_USE_XMA in the flags + * parameter), the storage pointed to by the cfg parameter must be + * kept readable and stable until all memory maps have been set. + * + * \param[in] ctx Pointer to this instance's context. + * \param[in] iface Pointer to the algorithm interface to use. + * \param[in] cfg Configuration to use, if known. May be NULL. + * \param[in] flags Bitfield of VPX_CODEC_USE_* flags + * \param[in] ver ABI version number. Must be set to + * VPX_DECODER_ABI_VERSION + * \retval #VPX_CODEC_OK + * The decoder algorithm initialized. + * \retval #VPX_CODEC_MEM_ERROR + * Memory allocation failed. + */ +vpx_codec_err_t vpx_codec_dec_init_ver(vpx_codec_ctx_t *ctx, + vpx_codec_iface_t *iface, + vpx_codec_dec_cfg_t *cfg, + vpx_codec_flags_t flags, + int ver); + +/*!\brief Convenience macro for vpx_codec_dec_init_ver() + * + * Ensures the ABI version parameter is properly set. + */ #define vpx_codec_dec_init(ctx, iface, cfg, flags) \ vpx_codec_dec_init_ver(ctx, iface, cfg, flags, VPX_DECODER_ABI_VERSION) - /*!\brief Parse stream info from a buffer - * - * Performs high level parsing of the bitstream. Construction of a decoder - * context is not necessary. Can be used to determine if the bitstream is - * of the proper format, and to extract information from the stream. - * - * \param[in] iface Pointer to the algorithm interface - * \param[in] data Pointer to a block of data to parse - * \param[in] data_sz Size of the data buffer - * \param[in,out] si Pointer to stream info to update. The size member - * \ref MUST be properly initialized, but \ref MAY be - * clobbered by the algorithm. This parameter \ref MAY - * be NULL. - * - * \retval #VPX_CODEC_OK - * Bitstream is parsable and stream information updated - */ - vpx_codec_err_t vpx_codec_peek_stream_info(vpx_codec_iface_t *iface, - const uint8_t *data, - unsigned int data_sz, - vpx_codec_stream_info_t *si); - - - /*!\brief Return information about the current stream. - * - * Returns information about the stream that has been parsed during decoding. - * - * \param[in] ctx Pointer to this instance's context - * \param[in,out] si Pointer to stream info to update. The size member - * \ref MUST be properly initialized, but \ref MAY be - * clobbered by the algorithm. This parameter \ref MAY - * be NULL. - * - * \retval #VPX_CODEC_OK - * Bitstream is parsable and stream information updated - */ - vpx_codec_err_t vpx_codec_get_stream_info(vpx_codec_ctx_t *ctx, - vpx_codec_stream_info_t *si); - - - /*!\brief Decode data - * - * Processes a buffer of coded data. If the processing results in a new - * decoded frame becoming available, PUT_SLICE and PUT_FRAME events may be - * generated, as appropriate. Encoded data \ref MUST be passed in DTS (decode - * time stamp) order. Frames produced will always be in PTS (presentation - * time stamp) order. - * If the decoder is configured with VPX_CODEC_USE_INPUT_FRAGMENTS enabled, - * data and data_sz can contain a fragment of the encoded frame. Fragment - * \#n must contain at least partition \#n, but can also contain subsequent - * partitions (\#n+1 - \#n+i), and if so, fragments \#n+1, .., \#n+i must - * be empty. When no more data is available, this function should be called - * with NULL as data and 0 as data_sz. The memory passed to this function - * must be available until the frame has been decoded. - * - * \param[in] ctx Pointer to this instance's context - * \param[in] data Pointer to this block of new coded data. If - * NULL, a VPX_CODEC_CB_PUT_FRAME event is posted - * for the previously decoded frame. - * \param[in] data_sz Size of the coded data, in bytes. - * \param[in] user_priv Application specific data to associate with - * this frame. - * \param[in] deadline Soft deadline the decoder should attempt to meet, - * in us. Set to zero for unlimited. - * - * \return Returns #VPX_CODEC_OK if the coded data was processed completely - * and future pictures can be decoded without error. Otherwise, - * see the descriptions of the other error codes in ::vpx_codec_err_t - * for recoverability capabilities. - */ - vpx_codec_err_t vpx_codec_decode(vpx_codec_ctx_t *ctx, - const uint8_t *data, - unsigned int data_sz, - void *user_priv, - long deadline); - - - /*!\brief Decoded frames iterator - * - * Iterates over a list of the frames available for display. The iterator - * storage should be initialized to NULL to start the iteration. Iteration is - * complete when this function returns NULL. - * - * The list of available frames becomes valid upon completion of the - * vpx_codec_decode call, and remains valid until the next call to vpx_codec_decode. - * - * \param[in] ctx Pointer to this instance's context - * \param[in,out] iter Iterator storage, initialized to NULL - * - * \return Returns a pointer to an image, if one is ready for display. Frames - * produced will always be in PTS (presentation time stamp) order. - */ - vpx_image_t *vpx_codec_get_frame(vpx_codec_ctx_t *ctx, - vpx_codec_iter_t *iter); - - - /*!\defgroup cap_put_frame Frame-Based Decoding Functions - * - * The following functions are required to be implemented for all decoders - * that advertise the VPX_CODEC_CAP_PUT_FRAME capability. Calling these functions - * for codecs that don't advertise this capability will result in an error - * code being returned, usually VPX_CODEC_ERROR - * @{ - */ - - /*!\brief put frame callback prototype - * - * This callback is invoked by the decoder to notify the application of - * the availability of decoded image data. - */ - typedef void (*vpx_codec_put_frame_cb_fn_t)(void *user_priv, - const vpx_image_t *img); - - - /*!\brief Register for notification of frame completion. - * - * Registers a given function to be called when a decoded frame is - * available. - * - * \param[in] ctx Pointer to this instance's context - * \param[in] cb Pointer to the callback function - * \param[in] user_priv User's private data - * - * \retval #VPX_CODEC_OK - * Callback successfully registered. - * \retval #VPX_CODEC_ERROR - * Decoder context not initialized, or algorithm not capable of - * posting slice completion. - */ - vpx_codec_err_t vpx_codec_register_put_frame_cb(vpx_codec_ctx_t *ctx, - vpx_codec_put_frame_cb_fn_t cb, - void *user_priv); - - - /*!@} - end defgroup cap_put_frame */ - - /*!\defgroup cap_put_slice Slice-Based Decoding Functions - * - * The following functions are required to be implemented for all decoders - * that advertise the VPX_CODEC_CAP_PUT_SLICE capability. Calling these functions - * for codecs that don't advertise this capability will result in an error - * code being returned, usually VPX_CODEC_ERROR - * @{ - */ - - /*!\brief put slice callback prototype - * - * This callback is invoked by the decoder to notify the application of - * the availability of partially decoded image data. The - */ - typedef void (*vpx_codec_put_slice_cb_fn_t)(void *user_priv, - const vpx_image_t *img, - const vpx_image_rect_t *valid, - const vpx_image_rect_t *update); - - - /*!\brief Register for notification of slice completion. - * - * Registers a given function to be called when a decoded slice is - * available. - * - * \param[in] ctx Pointer to this instance's context - * \param[in] cb Pointer to the callback function - * \param[in] user_priv User's private data - * - * \retval #VPX_CODEC_OK - * Callback successfully registered. - * \retval #VPX_CODEC_ERROR - * Decoder context not initialized, or algorithm not capable of - * posting slice completion. - */ - vpx_codec_err_t vpx_codec_register_put_slice_cb(vpx_codec_ctx_t *ctx, - vpx_codec_put_slice_cb_fn_t cb, - void *user_priv); - - - /*!@} - end defgroup cap_put_slice*/ - - /*!@} - end defgroup decoder*/ +/*!\brief Parse stream info from a buffer + * + * Performs high level parsing of the bitstream. Construction of a decoder + * context is not necessary. Can be used to determine if the bitstream is + * of the proper format, and to extract information from the stream. + * + * \param[in] iface Pointer to the algorithm interface + * \param[in] data Pointer to a block of data to parse + * \param[in] data_sz Size of the data buffer + * \param[in,out] si Pointer to stream info to update. The size member + * \ref MUST be properly initialized, but \ref MAY be + * clobbered by the algorithm. This parameter \ref MAY + * be NULL. + * + * \retval #VPX_CODEC_OK + * Bitstream is parsable and stream information updated + */ +vpx_codec_err_t vpx_codec_peek_stream_info(vpx_codec_iface_t *iface, + const uint8_t *data, + unsigned int data_sz, + vpx_codec_stream_info_t *si); + + +/*!\brief Return information about the current stream. + * + * Returns information about the stream that has been parsed during decoding. + * + * \param[in] ctx Pointer to this instance's context + * \param[in,out] si Pointer to stream info to update. The size member + * \ref MUST be properly initialized, but \ref MAY be + * clobbered by the algorithm. This parameter \ref MAY + * be NULL. + * + * \retval #VPX_CODEC_OK + * Bitstream is parsable and stream information updated + */ +vpx_codec_err_t vpx_codec_get_stream_info(vpx_codec_ctx_t *ctx, + vpx_codec_stream_info_t *si); + + +/*!\brief Decode data + * + * Processes a buffer of coded data. If the processing results in a new + * decoded frame becoming available, PUT_SLICE and PUT_FRAME events may be + * generated, as appropriate. Encoded data \ref MUST be passed in DTS (decode + * time stamp) order. Frames produced will always be in PTS (presentation + * time stamp) order. + * If the decoder is configured with VPX_CODEC_USE_INPUT_FRAGMENTS enabled, + * data and data_sz can contain a fragment of the encoded frame. Fragment + * \#n must contain at least partition \#n, but can also contain subsequent + * partitions (\#n+1 - \#n+i), and if so, fragments \#n+1, .., \#n+i must + * be empty. When no more data is available, this function should be called + * with NULL as data and 0 as data_sz. The memory passed to this function + * must be available until the frame has been decoded. + * + * \param[in] ctx Pointer to this instance's context + * \param[in] data Pointer to this block of new coded data. If + * NULL, a VPX_CODEC_CB_PUT_FRAME event is posted + * for the previously decoded frame. + * \param[in] data_sz Size of the coded data, in bytes. + * \param[in] user_priv Application specific data to associate with + * this frame. + * \param[in] deadline Soft deadline the decoder should attempt to meet, + * in us. Set to zero for unlimited. + * + * \return Returns #VPX_CODEC_OK if the coded data was processed completely + * and future pictures can be decoded without error. Otherwise, + * see the descriptions of the other error codes in ::vpx_codec_err_t + * for recoverability capabilities. + */ +vpx_codec_err_t vpx_codec_decode(vpx_codec_ctx_t *ctx, + const uint8_t *data, + unsigned int data_sz, + void *user_priv, + long deadline); + + +/*!\brief Decoded frames iterator + * + * Iterates over a list of the frames available for display. The iterator + * storage should be initialized to NULL to start the iteration. Iteration is + * complete when this function returns NULL. + * + * The list of available frames becomes valid upon completion of the + * vpx_codec_decode call, and remains valid until the next call to vpx_codec_decode. + * + * \param[in] ctx Pointer to this instance's context + * \param[in,out] iter Iterator storage, initialized to NULL + * + * \return Returns a pointer to an image, if one is ready for display. Frames + * produced will always be in PTS (presentation time stamp) order. + */ +vpx_image_t *vpx_codec_get_frame(vpx_codec_ctx_t *ctx, + vpx_codec_iter_t *iter); + + +/*!\defgroup cap_put_frame Frame-Based Decoding Functions + * + * The following functions are required to be implemented for all decoders + * that advertise the VPX_CODEC_CAP_PUT_FRAME capability. Calling these functions + * for codecs that don't advertise this capability will result in an error + * code being returned, usually VPX_CODEC_ERROR + * @{ + */ + +/*!\brief put frame callback prototype + * + * This callback is invoked by the decoder to notify the application of + * the availability of decoded image data. + */ +typedef void (*vpx_codec_put_frame_cb_fn_t)(void *user_priv, + const vpx_image_t *img); + + +/*!\brief Register for notification of frame completion. + * + * Registers a given function to be called when a decoded frame is + * available. + * + * \param[in] ctx Pointer to this instance's context + * \param[in] cb Pointer to the callback function + * \param[in] user_priv User's private data + * + * \retval #VPX_CODEC_OK + * Callback successfully registered. + * \retval #VPX_CODEC_ERROR + * Decoder context not initialized, or algorithm not capable of + * posting slice completion. + */ +vpx_codec_err_t vpx_codec_register_put_frame_cb(vpx_codec_ctx_t *ctx, + vpx_codec_put_frame_cb_fn_t cb, + void *user_priv); + + +/*!@} - end defgroup cap_put_frame */ + +/*!\defgroup cap_put_slice Slice-Based Decoding Functions + * + * The following functions are required to be implemented for all decoders + * that advertise the VPX_CODEC_CAP_PUT_SLICE capability. Calling these functions + * for codecs that don't advertise this capability will result in an error + * code being returned, usually VPX_CODEC_ERROR + * @{ + */ + +/*!\brief put slice callback prototype + * + * This callback is invoked by the decoder to notify the application of + * the availability of partially decoded image data. The + */ +typedef void (*vpx_codec_put_slice_cb_fn_t)(void *user_priv, + const vpx_image_t *img, + const vpx_image_rect_t *valid, + const vpx_image_rect_t *update); + + +/*!\brief Register for notification of slice completion. + * + * Registers a given function to be called when a decoded slice is + * available. + * + * \param[in] ctx Pointer to this instance's context + * \param[in] cb Pointer to the callback function + * \param[in] user_priv User's private data + * + * \retval #VPX_CODEC_OK + * Callback successfully registered. + * \retval #VPX_CODEC_ERROR + * Decoder context not initialized, or algorithm not capable of + * posting slice completion. + */ +vpx_codec_err_t vpx_codec_register_put_slice_cb(vpx_codec_ctx_t *ctx, + vpx_codec_put_slice_cb_fn_t cb, + void *user_priv); + + +/*!@} - end defgroup cap_put_slice*/ + +/*!@} - end defgroup decoder*/ #endif |