+++ /dev/null
-/*
- * VDA HW acceleration
- *
- * copyright (c) 2011 Sebastien Zwickert
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVCODEC_VDA_H
-#define AVCODEC_VDA_H
-
-/**
- * @file
- * @ingroup lavc_codec_hwaccel_vda
- * Public libavcodec VDA header.
- */
-
-#include "libavcodec/avcodec.h"
-
-#include <stdint.h>
-
-// emmintrin.h is unable to compile with -std=c99 -Werror=missing-prototypes
-// http://openradar.appspot.com/8026390
-#undef __GNUC_STDC_INLINE__
-
-#define Picture QuickdrawPicture
-#include <VideoDecodeAcceleration/VDADecoder.h>
-#undef Picture
-
-#include "libavcodec/version.h"
-
-// extra flags not defined in VDADecoder.h
-enum {
- kVDADecodeInfo_Asynchronous = 1UL << 0,
- kVDADecodeInfo_FrameDropped = 1UL << 1
-};
-
-/**
- * @defgroup lavc_codec_hwaccel_vda VDA
- * @ingroup lavc_codec_hwaccel
- *
- * @{
- */
-
-/**
- * This structure is used to provide the necessary configurations and data
- * to the VDA FFmpeg HWAccel implementation.
- *
- * The application must make it available as AVCodecContext.hwaccel_context.
- */
-struct vda_context {
- /**
- * VDA decoder object.
- *
- * - encoding: unused
- * - decoding: Set/Unset by libavcodec.
- */
- VDADecoder decoder;
-
- /**
- * The Core Video pixel buffer that contains the current image data.
- *
- * encoding: unused
- * decoding: Set by libavcodec. Unset by user.
- */
- CVPixelBufferRef cv_buffer;
-
- /**
- * Use the hardware decoder in synchronous mode.
- *
- * encoding: unused
- * decoding: Set by user.
- */
- int use_sync_decoding;
-
- /**
- * The frame width.
- *
- * - encoding: unused
- * - decoding: Set/Unset by user.
- */
- int width;
-
- /**
- * The frame height.
- *
- * - encoding: unused
- * - decoding: Set/Unset by user.
- */
- int height;
-
- /**
- * The frame format.
- *
- * - encoding: unused
- * - decoding: Set/Unset by user.
- */
- int format;
-
- /**
- * The pixel format for output image buffers.
- *
- * - encoding: unused
- * - decoding: Set/Unset by user.
- */
- OSType cv_pix_fmt_type;
-
- /**
- * unused
- */
- uint8_t *priv_bitstream;
-
- /**
- * unused
- */
- int priv_bitstream_size;
-
- /**
- * unused
- */
- int priv_allocated_size;
-
- /**
- * Use av_buffer to manage buffer.
- * When the flag is set, the CVPixelBuffers returned by the decoder will
- * be released automatically, so you have to retain them if necessary.
- * Not setting this flag may cause memory leak.
- *
- * encoding: unused
- * decoding: Set by user.
- */
- int use_ref_buffer;
-};
-
-/** Create the video decoder. */
-int ff_vda_create_decoder(struct vda_context *vda_ctx,
- uint8_t *extradata,
- int extradata_size);
-
-/** Destroy the video decoder. */
-int ff_vda_destroy_decoder(struct vda_context *vda_ctx);
-
-/**
- * This struct holds all the information that needs to be passed
- * between the caller and libavcodec for initializing VDA decoding.
- * Its size is not a part of the public ABI, it must be allocated with
- * av_vda_alloc_context() and freed with av_free().
- */
-typedef struct AVVDAContext {
- /**
- * VDA decoder object. Created and freed by the caller.
- */
- VDADecoder decoder;
-
- /**
- * The output callback that must be passed to VDADecoderCreate.
- * Set by av_vda_alloc_context().
- */
- VDADecoderOutputCallback output_callback;
-
- /**
- * CVPixelBuffer Format Type that VDA will use for decoded frames; set by
- * the caller.
- */
- OSType cv_pix_fmt_type;
-} AVVDAContext;
-
-/**
- * Allocate and initialize a VDA context.
- *
- * This function should be called from the get_format() callback when the caller
- * selects the AV_PIX_FMT_VDA format. The caller must then create the decoder
- * object (using the output callback provided by libavcodec) that will be used
- * for VDA-accelerated decoding.
- *
- * When decoding with VDA is finished, the caller must destroy the decoder
- * object and free the VDA context using av_free().
- *
- * @return the newly allocated context or NULL on failure
- */
-AVVDAContext *av_vda_alloc_context(void);
-
-/**
- * This is a convenience function that creates and sets up the VDA context using
- * an internal implementation.
- *
- * @param avctx the corresponding codec context
- *
- * @return >= 0 on success, a negative AVERROR code on failure
- */
-int av_vda_default_init(AVCodecContext *avctx);
-
-/**
- * This is a convenience function that creates and sets up the VDA context using
- * an internal implementation.
- *
- * @param avctx the corresponding codec context
- * @param vdactx the VDA context to use
- *
- * @return >= 0 on success, a negative AVERROR code on failure
- */
-int av_vda_default_init2(AVCodecContext *avctx, AVVDAContext *vdactx);
-
-/**
- * This function must be called to free the VDA context initialized with
- * av_vda_default_init().
- *
- * @param avctx the corresponding codec context
- */
-void av_vda_default_free(AVCodecContext *avctx);
-
-/**
- * @}
- */
-
-#endif /* AVCODEC_VDA_H */
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