25381a2984
[MS-RDPEGFX]: 3.2.5.13 Processing an RDPGFX_FRAME_ACKNOWLEDGE_PDU message If the queueDepth field is less than 0xFFFFFFFF, the server MUST expect that RDPGFX_FRAME_ACKNOWLEDGE_PDU messages will continue to be sent by the client. Furthermore, if the queueDepth field is in the range 0x00000001 to 0xFFFFFFFE the server SHOULD use this value to determine how far the client is lagging in terms of graphics decoding and then attempt to throttle the graphics frame rate accordingly. If the queueDepth field is set to SUSPEND_FRAME_ACKNOWLEDGEMENT (0xFFFFFFFF), the server MUST clear the Unacknowledged Frames (section 3.2.1.2) ADM element and MUST NOT expect any further RDPGFX_FRAME_ACKNOWLEDGE_PDU messages from the client. In this mode, the server MUST NOT wait or block on unacknowledged frames (as the RDPGFX_FRAME_ACKNOWLEDGE_PDU message is not sent by the client) and MUST assume that the client is able to decode graphics data at a rate faster than it is receiving frames. On the other hand, RDPGFX_QOE_FRAME_ACKNOWLEDGE_PDU SHOULD only be used for informational and debugging purposes and should not be taken into account.
78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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*
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* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FREERDP_SHADOW_SERVER_ENCODER_H
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#define FREERDP_SHADOW_SERVER_ENCODER_H
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#include <winpr/crt.h>
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#include <winpr/stream.h>
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#include <freerdp/freerdp.h>
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#include <freerdp/codecs.h>
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#include <freerdp/server/shadow.h>
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struct rdp_shadow_encoder
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{
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rdpShadowClient* client;
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rdpShadowServer* server;
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int width;
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int height;
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UINT32 codecs;
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BYTE** grid;
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int gridWidth;
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int gridHeight;
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BYTE* gridBuffer;
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int maxTileWidth;
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int maxTileHeight;
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wStream* bs;
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RFX_CONTEXT* rfx;
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NSC_CONTEXT* nsc;
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BITMAP_PLANAR_CONTEXT* planar;
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BITMAP_INTERLEAVED_CONTEXT* interleaved;
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H264_CONTEXT* h264;
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int fps;
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int maxFps;
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BOOL frameAck;
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UINT32 frameId;
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UINT32 lastAckframeId;
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UINT32 queueDepth;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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int shadow_encoder_reset(rdpShadowEncoder* encoder);
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int shadow_encoder_prepare(rdpShadowEncoder* encoder, UINT32 codecs);
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UINT32 shadow_encoder_create_frame_id(rdpShadowEncoder* encoder);
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rdpShadowEncoder* shadow_encoder_new(rdpShadowClient* client);
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void shadow_encoder_free(rdpShadowEncoder* encoder);
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#ifdef __cplusplus
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}
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#endif
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#endif /* FREERDP_SHADOW_SERVER_ENCODER_H */
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