h264.c File Reference

#include <freerdp/config.h>
#include <winpr/crt.h>
#include <winpr/print.h>
#include <winpr/library.h>
#include <winpr/bitstream.h>
#include <winpr/synch.h>
#include <freerdp/primitives.h>
#include <freerdp/codec/h264.h>
#include <freerdp/codec/yuv.h>
#include <freerdp/log.h>
#include "h264.h"

Macros
#define	TAG   FREERDP_TAG("codec")
#define	MAX_SUBSYSTEMS   10

Functions
static BOOL	avc444_ensure_buffer (H264_CONTEXT *h264, DWORD nDstHeight)
BOOL	avc420_ensure_buffer (H264_CONTEXT *h264, UINT32 stride, UINT32 width, UINT32 height)
INT32	avc420_decompress (H264_CONTEXT *h264, const BYTE *pSrcData, UINT32 SrcSize, BYTE *pDstData, DWORD DstFormat, UINT32 nDstStep, UINT32 nDstWidth, UINT32 nDstHeight, const RECTANGLE_16 *regionRects, UINT32 numRegionRects)
static BOOL	allocate_h264_metablock (UINT32 QP, RECTANGLE_16 *rectangles, RDPGFX_H264_METABLOCK *meta, size_t count)
static INLINE BOOL	diff_tile (const RECTANGLE_16 *regionRect, BYTE *pYUVData[3], BYTE *pOldYUVData[3], UINT32 const iStride[3])
static BOOL	detect_changes (BOOL firstFrameDone, const UINT32 QP, const RECTANGLE_16 *regionRect, BYTE *pYUVData[3], BYTE *pOldYUVData[3], UINT32 const iStride[3], RDPGFX_H264_METABLOCK *meta)
INT32	h264_get_yuv_buffer (H264_CONTEXT *h264, UINT32 nSrcStride, UINT32 nSrcWidth, UINT32 nSrcHeight, BYTE *YUVData[3], UINT32 stride[3])
INT32	h264_compress (H264_CONTEXT *h264, BYTE **ppDstData, UINT32 *pDstSize)
INT32	avc420_compress (H264_CONTEXT *h264, const BYTE *pSrcData, DWORD SrcFormat, UINT32 nSrcStep, UINT32 nSrcWidth, UINT32 nSrcHeight, const RECTANGLE_16 *regionRect, BYTE **ppDstData, UINT32 *pDstSize, RDPGFX_H264_METABLOCK *meta)
INT32	avc444_compress (H264_CONTEXT *h264, const BYTE *pSrcData, DWORD SrcFormat, UINT32 nSrcStep, UINT32 nSrcWidth, UINT32 nSrcHeight, BYTE version, const RECTANGLE_16 *region, BYTE *op, BYTE **ppDstData, UINT32 *pDstSize, BYTE **ppAuxDstData, UINT32 *pAuxDstSize, RDPGFX_H264_METABLOCK *meta, RDPGFX_H264_METABLOCK *auxMeta)
static BOOL	avc444_process_rects (H264_CONTEXT *h264, const BYTE *pSrcData, UINT32 SrcSize, BYTE *pDstData, UINT32 DstFormat, UINT32 nDstStep, UINT32 nDstWidth, UINT32 nDstHeight, const RECTANGLE_16 *rects, UINT32 nrRects, avc444_frame_type type)
INT32	avc444_decompress (H264_CONTEXT *h264, BYTE op, const RECTANGLE_16 *regionRects, UINT32 numRegionRects, const BYTE *pSrcData, UINT32 SrcSize, const RECTANGLE_16 *auxRegionRects, UINT32 numAuxRegionRect, const BYTE *pAuxSrcData, UINT32 AuxSrcSize, BYTE *pDstData, DWORD DstFormat, UINT32 nDstStep, UINT32 nDstWidth, UINT32 nDstHeight, UINT32 codecId)
static BOOL CALLBACK	h264_register_subsystems (PINIT_ONCE once, PVOID param, PVOID *context)
static BOOL	h264_context_init (H264_CONTEXT *h264)
BOOL	h264_context_reset (H264_CONTEXT *h264, UINT32 width, UINT32 height)
H264_CONTEXT *	h264_context_new (BOOL Compressor)
void	h264_context_free (H264_CONTEXT *h264)
void	free_h264_metablock (RDPGFX_H264_METABLOCK *meta)
BOOL	h264_context_set_option (H264_CONTEXT *h264, H264_CONTEXT_OPTION option, UINT32 value)
UINT32	h264_context_get_option (H264_CONTEXT *h264, H264_CONTEXT_OPTION option)

Variables
static INIT_ONCE	subsystems_once = INIT_ONCE_STATIC_INIT
static const H264_CONTEXT_SUBSYSTEM *	subSystems [MAX_SUBSYSTEMS] = { 0 }

Macro Definition Documentation

MAX_SUBSYSTEMS

#define MAX_SUBSYSTEMS   10

TAG

#define TAG   FREERDP_TAG("codec")

FreeRDP: A Remote Desktop Protocol Implementation H.264 Bitmap Compression

Copyright 2014 Mike McDonald Mike..nosp@m.McDo.nosp@m.nald@.nosp@m.soft.nosp@m.ware..nosp@m.dell.nosp@m..com Copyright 2017 David Fort conta.nosp@m.ct@h.nosp@m.arden.nosp@m.ing-.nosp@m.consu.nosp@m.ltin.nosp@m.g.com

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Function Documentation

allocate_h264_metablock()

static BOOL allocate_h264_metablock ( UINT32  QP, RECTANGLE_16 *  rectangles, RDPGFX_H264_METABLOCK *  meta, size_t  count  )

static

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avc420_compress()

INT32 avc420_compress	(	H264_CONTEXT *	h264,
		const BYTE *	pSrcData,
		DWORD	SrcFormat,
		UINT32	nSrcStep,
		UINT32	nSrcWidth,
		UINT32	nSrcHeight,
		const RECTANGLE_16 *	regionRect,
		BYTE **	ppDstData,
		UINT32 *	pDstSize,
		RDPGFX_H264_METABLOCK *	meta
	)

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avc420_decompress()

INT32 avc420_decompress	(	H264_CONTEXT *	h264,
		const BYTE *	pSrcData,
		UINT32	SrcSize,
		BYTE *	pDstData,
		DWORD	DstFormat,
		UINT32	nDstStep,
		UINT32	nDstWidth,
		UINT32	nDstHeight,
		const RECTANGLE_16 *	regionRects,
		UINT32	numRegionRects
	)

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avc420_ensure_buffer()

BOOL avc420_ensure_buffer	(	H264_CONTEXT *	h264,
		UINT32	stride,
		UINT32	width,
		UINT32	height
	)

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avc444_compress()

INT32 avc444_compress	(	H264_CONTEXT *	h264,
		const BYTE *	pSrcData,
		DWORD	SrcFormat,
		UINT32	nSrcStep,
		UINT32	nSrcWidth,
		UINT32	nSrcHeight,
		BYTE	version,
		const RECTANGLE_16 *	region,
		BYTE *	op,
		BYTE **	ppDstData,
		UINT32 *	pDstSize,
		BYTE **	ppAuxDstData,
		UINT32 *	pAuxDstSize,
		RDPGFX_H264_METABLOCK *	meta,
		RDPGFX_H264_METABLOCK *	auxMeta
	)

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avc444_decompress()

INT32 avc444_decompress	(	H264_CONTEXT *	h264,
		BYTE	op,
		const RECTANGLE_16 *	regionRects,
		UINT32	numRegionRects,
		const BYTE *	pSrcData,
		UINT32	SrcSize,
		const RECTANGLE_16 *	auxRegionRects,
		UINT32	numAuxRegionRect,
		const BYTE *	pAuxSrcData,
		UINT32	AuxSrcSize,
		BYTE *	pDstData,
		DWORD	DstFormat,
		UINT32	nDstStep,
		UINT32	nDstWidth,
		UINT32	nDstHeight,
		UINT32	codecId
	)

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avc444_ensure_buffer()

static BOOL avc444_ensure_buffer ( H264_CONTEXT *  h264, DWORD  nDstHeight  )

static

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avc444_process_rects()

static BOOL avc444_process_rects ( H264_CONTEXT *  h264, const BYTE *  pSrcData, UINT32  SrcSize, BYTE *  pDstData, UINT32  DstFormat, UINT32  nDstStep, UINT32  nDstWidth, UINT32  nDstHeight, const RECTANGLE_16 *  rects, UINT32  nrRects, avc444_frame_type  type  )

static

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detect_changes()

static BOOL detect_changes ( BOOL  firstFrameDone, const UINT32  QP, const RECTANGLE_16 *  regionRect, BYTE *  pYUVData[3], BYTE *  pOldYUVData[3], UINT32 const  iStride[3], RDPGFX_H264_METABLOCK *  meta  )

static

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diff_tile()

static INLINE BOOL diff_tile ( const RECTANGLE_16 *  regionRect, BYTE *  pYUVData[3], BYTE *  pOldYUVData[3], UINT32 const  iStride[3]  )

static

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free_h264_metablock()

void free_h264_metablock

(

RDPGFX_H264_METABLOCK *

meta

)

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h264_compress()

INT32 h264_compress	(	H264_CONTEXT *	h264,
		BYTE **	ppDstData,
		UINT32 *	pDstSize
	)

Function description

Returns

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h264_context_free()

void h264_context_free

(

H264_CONTEXT *

h264

)

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h264_context_get_option()

UINT32 h264_context_get_option	(	H264_CONTEXT *	h264,
		H264_CONTEXT_OPTION	option
	)

h264_context_init()

static BOOL h264_context_init ( H264_CONTEXT *  h264 )

static

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h264_context_new()

H264_CONTEXT* h264_context_new

(

BOOL

Compressor

)

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h264_context_reset()

BOOL h264_context_reset	(	H264_CONTEXT *	h264,
		UINT32	width,
		UINT32	height
	)

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h264_context_set_option()

BOOL h264_context_set_option	(	H264_CONTEXT *	h264,
		H264_CONTEXT_OPTION	option,
		UINT32	value
	)

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h264_get_yuv_buffer()

INT32 h264_get_yuv_buffer	(	H264_CONTEXT *	h264,
		UINT32	nSrcStride,
		UINT32	nSrcWidth,
		UINT32	nSrcHeight,
		BYTE *	YUVData[3],
		UINT32	stride[3]
	)

Function description

Returns

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h264_register_subsystems()

static BOOL CALLBACK h264_register_subsystems ( PINIT_ONCE  once, PVOID  param, PVOID *  context  )

static

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Variable Documentation

subSystems

const H264_CONTEXT_SUBSYSTEM* subSystems[MAX_SUBSYSTEMS] = { 0 }

static

subsystems_once

INIT_ONCE subsystems_once = INIT_ONCE_STATIC_INIT

static