/**
* FreeRDP: A Remote Desktop Protocol Implementation
* H.264 Bitmap Compression
*
* Copyright 2014 Mike McDonald <Mike.McDonald@software.dell.com>
* Copyright 2017 David Fort <contact@hardening-consulting.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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#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/log.h>
#include "h264.h"
#define TAG FREERDP_TAG("codec")
static BOOL avc444_ensure_buffer(H264_CONTEXT* h264, DWORD nDstHeight);
BOOL avc420_ensure_buffer(H264_CONTEXT* h264, UINT32 stride, UINT32 width, UINT32 height)
{
if (!h264)
return FALSE;
if (stride == 0)
stride = width;
if (stride % 16 != 0)
stride += 16 - stride % 16;
if (height % 16 != 0)
height += 16 - height % 16;
if (!h264->pYUVData[0] || !h264->pYUVData[1] || !h264->pYUVData[2] || (width != h264->width) ||
(height != h264->height) || (stride != h264->iStride[0]))
{
h264->iStride[0] = stride;
h264->iStride[1] = (stride + 1) / 2;
h264->iStride[2] = (stride + 1) / 2;
h264->width = width;
h264->height = height;
_aligned_free(h264->pYUVData[0]);
_aligned_free(h264->pYUVData[1]);
_aligned_free(h264->pYUVData[2]);
h264->pYUVData[0] = _aligned_malloc(h264->iStride[0] * height, 16);
h264->pYUVData[1] = _aligned_malloc(h264->iStride[1] * height, 16);
h264->pYUVData[2] = _aligned_malloc(h264->iStride[2] * height, 16);
if (!h264->pYUVData[0] || !h264->pYUVData[1] || !h264->pYUVData[2])
return FALSE;
}
return TRUE;
}
static BOOL check_rect(const H264_CONTEXT* h264, const RECTANGLE_16* rect, UINT32 nDstWidth,
UINT32 nDstHeight)
{
/* Check, if the output rectangle is valid in decoded h264 frame. */
if ((rect->right > h264->width) || (rect->left > h264->width))
return FALSE;
if ((rect->top > h264->height) || (rect->bottom > h264->height))
return FALSE;
/* Check, if the output rectangle is valid in destination buffer. */
if ((rect->right > nDstWidth) || (rect->left > nDstWidth))
return FALSE;
if ((rect->bottom > nDstHeight) || (rect->top > nDstHeight))
return FALSE;
return TRUE;
}
static BOOL avc_yuv_to_rgb(H264_CONTEXT* h264, const RECTANGLE_16* regionRects,
UINT32 numRegionRects, UINT32 nDstWidth, UINT32 nDstHeight,
UINT32 nDstStep, BYTE* pDstData, DWORD DstFormat, BOOL use444)
{
UINT32 x;
BYTE* pDstPoint;
prim_size_t roi;
INT32 width, height;
const BYTE* pYUVPoint[3];
primitives_t* prims = primitives_get();
for (x = 0; x < numRegionRects; x++)
{
const RECTANGLE_16* rect = &(regionRects[x]);
const UINT32* iStride;
BYTE** ppYUVData;
if (use444)
{
iStride = h264->iYUV444Stride;
ppYUVData = h264->pYUV444Data;
}
else
{
iStride = h264->iStride;
ppYUVData = h264->pYUVData;
}
if (!check_rect(h264, rect, nDstWidth, nDstHeight))
return FALSE;
width = rect->right - rect->left;
height = rect->bottom - rect->top;
pDstPoint = pDstData + rect->top * nDstStep + rect->left * 4;
pYUVPoint[0] = ppYUVData[0] + rect->top * iStride[0] + rect->left;
pYUVPoint[1] = ppYUVData[1];
pYUVPoint[2] = ppYUVData[2];
if (use444)
{
pYUVPoint[1] += rect->top * iStride[1] + rect->left;
pYUVPoint[2] += rect->top * iStride[2] + rect->left;
}
else
{
pYUVPoint[1] += rect->top / 2 * iStride[1] + rect->left / 2;
pYUVPoint[2] += rect->top / 2 * iStride[2] + rect->left / 2;
}
roi.width = width;
roi.height = height;
if (use444)
{
if (prims->YUV444ToRGB_8u_P3AC4R(pYUVPoint, iStride, pDstPoint, nDstStep, DstFormat,
&roi) != PRIMITIVES_SUCCESS)
{
return FALSE;
}
}
else
{
if (prims->YUV420ToRGB_8u_P3AC4R(pYUVPoint, iStride, pDstPoint, nDstStep, DstFormat,
&roi) != PRIMITIVES_SUCCESS)
return FALSE;
}
}
return TRUE;
}
INT32 avc420_decompress(H264_CONTEXT* h264, const BYTE* pSrcData, UINT32 SrcSize, BYTE* pDstData,
DWORD DstFormat, UINT32 nDstStep, UINT32 nDstWidth, UINT32 nDstHeight,
RECTANGLE_16* regionRects, UINT32 numRegionRects)
{
int status;
if (!h264)
return -1001;
status = h264->subsystem->Decompress(h264, pSrcData, SrcSize);
if (status == 0)
return 1;
if (status < 0)
return status;
if (!avc_yuv_to_rgb(h264, regionRects, numRegionRects, nDstWidth, nDstHeight, nDstStep,
pDstData, DstFormat, FALSE))
return -1002;
return 1;
}
INT32 avc420_compress(H264_CONTEXT* h264, const BYTE* pSrcData, DWORD SrcFormat, UINT32 nSrcStep,
UINT32 nSrcWidth, UINT32 nSrcHeight, BYTE** ppDstData, UINT32* pDstSize)
{
prim_size_t roi;
primitives_t* prims = primitives_get();
if (!h264)
return -1;
if (!h264->subsystem->Compress)
return -1;
if (!avc420_ensure_buffer(h264, nSrcStep, nSrcWidth, nSrcHeight))
return -1;
roi.width = nSrcWidth;
roi.height = nSrcHeight;
if (prims->RGBToYUV420_8u_P3AC4R(pSrcData, SrcFormat, nSrcStep, h264->pYUVData, h264->iStride,
&roi) != PRIMITIVES_SUCCESS)
return -1;
{
const BYTE* pYUVData[3] = { h264->pYUVData[0], h264->pYUVData[1], h264->pYUVData[2] };
return h264->subsystem->Compress(h264, pYUVData, h264->iStride, ppDstData, pDstSize);
}
}
INT32 avc444_compress(H264_CONTEXT* h264, const BYTE* pSrcData, DWORD SrcFormat, UINT32 nSrcStep,
UINT32 nSrcWidth, UINT32 nSrcHeight, BYTE version, BYTE* op, BYTE** ppDstData,
UINT32* pDstSize, BYTE** ppAuxDstData, UINT32* pAuxDstSize)
{
prim_size_t roi;
primitives_t* prims = primitives_get();
BYTE* coded;
UINT32 codedSize;
if (!h264)
return -1;
if (!h264->subsystem->Compress)
return -1;
if (!avc420_ensure_buffer(h264, nSrcStep, nSrcWidth, nSrcHeight))
return -1;
if (!avc444_ensure_buffer(h264, nSrcHeight))
return -1;
roi.width = nSrcWidth;
roi.height = nSrcHeight;
switch (version)
{
case 1:
if (prims->RGBToAVC444YUV(pSrcData, SrcFormat, nSrcStep, h264->pYUV444Data,
h264->iStride, h264->pYUVData, h264->iStride,
&roi) != PRIMITIVES_SUCCESS)
return -1;
break;
case 2:
if (prims->RGBToAVC444YUVv2(pSrcData, SrcFormat, nSrcStep, h264->pYUV444Data,
h264->iStride, h264->pYUVData, h264->iStride,
&roi) != PRIMITIVES_SUCCESS)
return -1;
break;
default:
return -1;
}
{
const BYTE* pYUV444Data[3] = { h264->pYUV444Data[0], h264->pYUV444Data[1],
h264->pYUV444Data[2] };
if (h264->subsystem->Compress(h264, pYUV444Data, h264->iStride, &coded, &codedSize) < 0)
return -1;
}
memcpy(h264->lumaData, coded, codedSize);
*ppDstData = h264->lumaData;
*pDstSize = codedSize;
{
const BYTE* pYUVData[3] = { h264->pYUVData[0], h264->pYUVData[1], h264->pYUVData[2] };
if (h264->subsystem->Compress(h264, pYUVData, h264->iStride, &coded, &codedSize) < 0)
return -1;
}
*ppAuxDstData = coded;
*pAuxDstSize = codedSize;
*op = 0;
return 0;
}
static BOOL avc444_ensure_buffer(H264_CONTEXT* h264, DWORD nDstHeight)
{
UINT32 x;
const UINT32* piMainStride = h264->iStride;
UINT32* piDstSize = h264->iYUV444Size;
UINT32* piDstStride = h264->iYUV444Stride;
BYTE** ppYUVDstData = h264->pYUV444Data;
const UINT32 pad = nDstHeight % 16;
UINT32 padDstHeight = nDstHeight; /* Need alignment to 16x16 blocks */
if (pad != 0)
padDstHeight += 16 - pad;
if ((piMainStride[0] != piDstStride[0]) || (piDstSize[0] != piMainStride[0] * padDstHeight))
{
for (x = 0; x < 3; x++)
{
piDstStride[x] = piMainStride[0];
piDstSize[x] = piDstStride[x] * padDstHeight;
_aligned_free(ppYUVDstData[x]);
ppYUVDstData[x] = _aligned_malloc(piDstSize[x], 16);
if (!ppYUVDstData[x])
goto fail;
memset(ppYUVDstData[x], 0, piDstSize[x]);
}
_aligned_free(h264->lumaData);
h264->lumaData = _aligned_malloc(piDstSize[0] * 4, 16);
}
for (x = 0; x < 3; x++)
{
if (!ppYUVDstData[x] || (piDstSize[x] == 0) || (piDstStride[x] == 0))
{
WLog_Print(h264->log, WLOG_ERROR,
"YUV buffer not initialized! check your decoder settings");
goto fail;
}
}
if (!h264->lumaData)
goto fail;
return TRUE;
fail:
_aligned_free(ppYUVDstData[0]);
_aligned_free(ppYUVDstData[1]);
_aligned_free(ppYUVDstData[2]);
_aligned_free(h264->lumaData);
ppYUVDstData[0] = NULL;
ppYUVDstData[1] = NULL;
ppYUVDstData[2] = NULL;
h264->lumaData = NULL;
return FALSE;
}
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)
{
const primitives_t* prims = primitives_get();
UINT32 x;
UINT32* piDstStride = h264->iYUV444Stride;
BYTE** ppYUVDstData = h264->pYUV444Data;
const UINT32* piStride = h264->iStride;
const BYTE* const* ppYUVData = (const BYTE* const*)h264->pYUVData;
if (h264->subsystem->Decompress(h264, pSrcData, SrcSize) < 0)
return FALSE;
if (!avc444_ensure_buffer(h264, nDstHeight))
return FALSE;
for (x = 0; x < nrRects; x++)
{
const RECTANGLE_16* rect = &rects[x];
const UINT32 alignedWidth =
h264->width + ((h264->width % 16 != 0) ? 16 - h264->width % 16 : 0);
const UINT32 alignedHeight =
h264->height + ((h264->height % 16 != 0) ? 16 - h264->height % 16 : 0);
if (!check_rect(h264, rect, nDstWidth, nDstHeight))
continue;
if (prims->YUV420CombineToYUV444(type, ppYUVData, piStride, alignedWidth, alignedHeight,
ppYUVDstData, piDstStride, rect) != PRIMITIVES_SUCCESS)
return FALSE;
}
if (!avc_yuv_to_rgb(h264, rects, nrRects, nDstWidth, nDstHeight, nDstStep, pDstData, DstFormat,
TRUE))
return FALSE;
return TRUE;
}
#if defined(AVC444_FRAME_STAT)
static UINT64 op1 = 0;
static double op1sum = 0;
static UINT64 op2 = 0;
static double op2sum = 0;
static UINT64 op3 = 0;
static double op3sum = 0;
static double avg(UINT64* count, double old, double size)
{
double tmp = size + *count * old;
(*count)++;
tmp = tmp / *count;
return tmp;
}
#endif
INT32 avc444_decompress(H264_CONTEXT* h264, BYTE op, RECTANGLE_16* regionRects,
UINT32 numRegionRects, const BYTE* pSrcData, UINT32 SrcSize,
RECTANGLE_16* auxRegionRects, UINT32 numAuxRegionRect,
const BYTE* pAuxSrcData, UINT32 AuxSrcSize, BYTE* pDstData, DWORD DstFormat,
UINT32 nDstStep, UINT32 nDstWidth, UINT32 nDstHeight, UINT32 codecId)
{
INT32 status = -1;
avc444_frame_type chroma =
(codecId == RDPGFX_CODECID_AVC444) ? AVC444_CHROMAv1 : AVC444_CHROMAv2;
if (!h264 || !regionRects || !pSrcData || !pDstData)
return -1001;
switch (op)
{
case 0: /* YUV420 in stream 1
* Chroma420 in stream 2 */
if (!avc444_process_rects(h264, pSrcData, SrcSize, pDstData, DstFormat, nDstStep,
nDstWidth, nDstHeight, regionRects, numRegionRects,
AVC444_LUMA))
status = -1;
else if (!avc444_process_rects(h264, pAuxSrcData, AuxSrcSize, pDstData, DstFormat,
nDstStep, nDstWidth, nDstHeight, auxRegionRects,
numAuxRegionRect, chroma))
status = -1;
else
status = 0;
break;
case 2: /* Chroma420 in stream 1 */
if (!avc444_process_rects(h264, pSrcData, SrcSize, pDstData, DstFormat, nDstStep,
nDstWidth, nDstHeight, regionRects, numRegionRects, chroma))
status = -1;
else
status = 0;
break;
case 1: /* YUV420 in stream 1 */
if (!avc444_process_rects(h264, pSrcData, SrcSize, pDstData, DstFormat, nDstStep,
nDstWidth, nDstHeight, regionRects, numRegionRects,
AVC444_LUMA))
status = -1;
else
status = 0;
break;
default: /* WTF? */
break;
}
#if defined(AVC444_FRAME_STAT)
switch (op)
{
case 0:
op1sum = avg(&op1, op1sum, SrcSize + AuxSrcSize);
break;
case 1:
op2sum = avg(&op2, op2sum, SrcSize);
break;
case 2:
op3sum = avg(&op3, op3sum, SrcSize);
break;
default:
break;
}
WLog_Print(h264->log, WLOG_INFO,
"luma=%" PRIu64 " [avg=%lf] chroma=%" PRIu64 " [avg=%lf] combined=%" PRIu64
" [avg=%lf]",
op1, op1sum, op2, op2sum, op3, op3sum);
#endif
return status;
}
#define MAX_SUBSYSTEMS 10
static INIT_ONCE subsystems_once = INIT_ONCE_STATIC_INIT;
static H264_CONTEXT_SUBSYSTEM* subSystems[MAX_SUBSYSTEMS];
#if defined(_WIN32) && defined(WITH_MEDIA_FOUNDATION)
extern H264_CONTEXT_SUBSYSTEM g_Subsystem_MF;
#endif
static BOOL CALLBACK h264_register_subsystems(PINIT_ONCE once, PVOID param, PVOID* context)
{
int i = 0;
ZeroMemory(subSystems, sizeof(subSystems));
#if defined(_WIN32) && defined(WITH_MEDIA_FOUNDATION)
{
subSystems[i] = &g_Subsystem_MF;
i++;
}
#endif
#ifdef WITH_OPENH264
{
extern H264_CONTEXT_SUBSYSTEM g_Subsystem_OpenH264;
subSystems[i] = &g_Subsystem_OpenH264;
i++;
}
#endif
#ifdef WITH_FFMPEG
{
extern H264_CONTEXT_SUBSYSTEM g_Subsystem_libavcodec;
subSystems[i] = &g_Subsystem_libavcodec;
i++;
}
#endif
#ifdef WITH_X264
{
extern H264_CONTEXT_SUBSYSTEM g_Subsystem_x264;
subSystems[i] = &g_Subsystem_x264;
i++;
}
#endif
return i > 0;
}
static BOOL h264_context_init(H264_CONTEXT* h264)
{
int i;
if (!h264)
return FALSE;
h264->log = WLog_Get(TAG);
if (!h264->log)
return FALSE;
h264->subsystem = NULL;
InitOnceExecuteOnce(&subsystems_once, h264_register_subsystems, NULL, NULL);
for (i = 0; i < MAX_SUBSYSTEMS; i++)
{
H264_CONTEXT_SUBSYSTEM* subsystem = subSystems[i];
if (!subsystem || !subsystem->Init)
break;
if (subsystem->Init(h264))
{
h264->subsystem = subsystem;
return TRUE;
}
}
return FALSE;
}
BOOL h264_context_reset(H264_CONTEXT* h264, UINT32 width, UINT32 height)
{
if (!h264)
return FALSE;
h264->width = width;
h264->height = height;
return TRUE;
}
H264_CONTEXT* h264_context_new(BOOL Compressor)
{
H264_CONTEXT* h264;
h264 = (H264_CONTEXT*)calloc(1, sizeof(H264_CONTEXT));
if (h264)
{
h264->Compressor = Compressor;
if (Compressor)
{
/* Default compressor settings, may be changed by caller */
h264->BitRate = 1000000;
h264->FrameRate = 30;
}
if (!h264_context_init(h264))
{
free(h264);
return NULL;
}
}
return h264;
}
void h264_context_free(H264_CONTEXT* h264)
{
if (h264)
{
h264->subsystem->Uninit(h264);
_aligned_free(h264->pYUV444Data[0]);
_aligned_free(h264->pYUV444Data[1]);
_aligned_free(h264->pYUV444Data[2]);
_aligned_free(h264->lumaData);
free(h264);
}
}