yading@10: /*
yading@10:  * VDA HW acceleration
yading@10:  *
yading@10:  * copyright (c) 2011 Sebastien Zwickert
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #ifndef AVCODEC_VDA_H
yading@10: #define AVCODEC_VDA_H
yading@10: 
yading@10: /**
yading@10:  * @file
yading@10:  * @ingroup lavc_codec_hwaccel_vda
yading@10:  * Public libavcodec VDA header.
yading@10:  */
yading@10: 
yading@10: #include <stdint.h>
yading@10: 
yading@10: // emmintrin.h is unable to compile with -std=c99 -Werror=missing-prototypes
yading@10: // http://openradar.appspot.com/8026390
yading@10: #undef __GNUC_STDC_INLINE__
yading@10: 
yading@10: #define Picture QuickdrawPicture
yading@10: #include <VideoDecodeAcceleration/VDADecoder.h>
yading@10: #undef Picture
yading@10: 
yading@10: #include "libavcodec/version.h"
yading@10: 
yading@10: /**
yading@10:  * @defgroup lavc_codec_hwaccel_vda VDA
yading@10:  * @ingroup lavc_codec_hwaccel
yading@10:  *
yading@10:  * @{
yading@10:  */
yading@10: 
yading@10: /**
yading@10:  * This structure is used to provide the necessary configurations and data
yading@10:  * to the VDA FFmpeg HWAccel implementation.
yading@10:  *
yading@10:  * The application must make it available as AVCodecContext.hwaccel_context.
yading@10:  */
yading@10: struct vda_context {
yading@10:     /**
yading@10:      * VDA decoder object.
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set/Unset by libavcodec.
yading@10:      */
yading@10:     VDADecoder          decoder;
yading@10: 
yading@10:     /**
yading@10:      * The Core Video pixel buffer that contains the current image data.
yading@10:      *
yading@10:      * encoding: unused
yading@10:      * decoding: Set by libavcodec. Unset by user.
yading@10:      */
yading@10:     CVPixelBufferRef    cv_buffer;
yading@10: 
yading@10:     /**
yading@10:      * Use the hardware decoder in synchronous mode.
yading@10:      *
yading@10:      * encoding: unused
yading@10:      * decoding: Set by user.
yading@10:      */
yading@10:     int                 use_sync_decoding;
yading@10: 
yading@10:     /**
yading@10:      * The frame width.
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set/Unset by user.
yading@10:      */
yading@10:     int                 width;
yading@10: 
yading@10:     /**
yading@10:      * The frame height.
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set/Unset by user.
yading@10:      */
yading@10:     int                 height;
yading@10: 
yading@10:     /**
yading@10:      * The frame format.
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set/Unset by user.
yading@10:      */
yading@10:     int                 format;
yading@10: 
yading@10:     /**
yading@10:      * The pixel format for output image buffers.
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set/Unset by user.
yading@10:      */
yading@10:     OSType              cv_pix_fmt_type;
yading@10: 
yading@10:     /**
yading@10:      * The current bitstream buffer.
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set/Unset by libavcodec.
yading@10:      */
yading@10:     uint8_t             *priv_bitstream;
yading@10: 
yading@10:     /**
yading@10:      * The current size of the bitstream.
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set/Unset by libavcodec.
yading@10:      */
yading@10:     int                 priv_bitstream_size;
yading@10: 
yading@10:     /**
yading@10:      * The reference size used for fast reallocation.
yading@10:      *
yading@10:      * - encoding: unused
yading@10:      * - decoding: Set/Unset by libavcodec.
yading@10:      */
yading@10:     int                 priv_allocated_size;
yading@10: };
yading@10: 
yading@10: /** Create the video decoder. */
yading@10: int ff_vda_create_decoder(struct vda_context *vda_ctx,
yading@10:                           uint8_t *extradata,
yading@10:                           int extradata_size);
yading@10: 
yading@10: /** Destroy the video decoder. */
yading@10: int ff_vda_destroy_decoder(struct vda_context *vda_ctx);
yading@10: 
yading@10: /**
yading@10:  * @}
yading@10:  */
yading@10: 
yading@10: #endif /* AVCODEC_VDA_H */