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/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
Copyright (C) 2009-2015 Red Hat, Inc.
This library 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.
This library 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 this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef STREAM_H_
#define STREAM_H_
#include <glib.h>
#include "utils.h"
#include "video-encoder.h"
#include "common/region.h"
#include "red-channel.h"
#include "image-cache.h"
#define RED_STREAM_DETACTION_MAX_DELTA (NSEC_PER_SEC / 5)
#define RED_STREAM_CONTINUS_MAX_DELTA NSEC_PER_SEC
#define RED_STREAM_TIMEOUT NSEC_PER_SEC
#define RED_STREAM_FRAMES_START_CONDITION 20
#define RED_STREAM_GRADUAL_FRAMES_START_CONDITION 0.2
#define RED_STREAM_FRAMES_RESET_CONDITION 100
#define RED_STREAM_MIN_SIZE (96 * 96)
#define RED_STREAM_INPUT_FPS_TIMEOUT (NSEC_PER_SEC * 5)
#define RED_STREAM_CHANNEL_CAPACITY 0.8
/* the client's stream report frequency is the minimum of the 2 values below */
#define RED_STREAM_CLIENT_REPORT_WINDOW 5 // #frames
#define RED_STREAM_CLIENT_REPORT_TIMEOUT MSEC_PER_SEC
#define RED_STREAM_DEFAULT_HIGH_START_BIT_RATE (10 * 1024 * 1024) // 10Mbps
#define RED_STREAM_DEFAULT_LOW_START_BIT_RATE (2.5 * 1024 * 1024) // 2.5Mbps
#define MAX_FPS 30
/* move back to display_channel once struct private */
typedef struct DisplayChannel DisplayChannel;
typedef struct Stream Stream;
typedef struct RedStreamActivateReportItem {
RedPipeItem pipe_item;
uint32_t stream_id;
} RedStreamActivateReportItem;
enum {
STREAM_FRAME_NONE,
STREAM_FRAME_NATIVE,
STREAM_FRAME_CONTAINER,
};
#define STREAM_STATS
#ifdef STREAM_STATS
typedef struct StreamStats {
uint64_t num_drops_pipe;
uint64_t num_drops_fps;
uint64_t num_frames_sent;
uint64_t num_input_frames;
uint64_t size_sent;
uint64_t start;
uint64_t end;
} StreamStats;
#endif
typedef struct StreamAgent {
QRegion vis_region; /* the part of the surface area that is currently occupied by video
fragments */
QRegion clip; /* the current video clipping. It can be different from vis_region:
for example, let c1 be the clip area at time t1, and c2
be the clip area at time t2, where t1 < t2. If c1 contains c2, and
at least part of c1/c2, hasn't been covered by a non-video images,
vis_region will contain c2 and also the part of c1/c2 that still
displays fragments of the video */
RedPipeItem create_item;
RedPipeItem destroy_item;
Stream *stream;
uint64_t last_send_time;
VideoEncoder *video_encoder;
DisplayChannelClient *dcc;
int frames;
int drops;
int fps;
uint32_t report_id;
uint32_t client_required_latency;
#ifdef STREAM_STATS
StreamStats stats;
#endif
} StreamAgent;
typedef struct RedStreamClipItem {
RedPipeItem base;
StreamAgent *stream_agent;
int clip_type;
SpiceClipRects *rects;
} RedStreamClipItem;
RedStreamClipItem * red_stream_clip_item_new (StreamAgent *agent);
typedef struct ItemTrace {
red_time_t time;
red_time_t first_frame_time;
int frames_count;
int gradual_frames_count;
int last_gradual_frame;
int width;
int height;
SpiceRect dest_area;
} ItemTrace;
struct Stream {
uint8_t refs;
Drawable *current;
red_time_t last_time;
int width;
int height;
SpiceRect dest_area;
int top_down;
Stream *next;
RingItem link;
uint32_t num_input_frames;
uint64_t input_fps_start_time;
uint32_t input_fps;
};
void display_channel_init_streams (DisplayChannel *display);
void stream_stop (DisplayChannel *display,
Stream *stream);
void stream_unref (DisplayChannel *display,
Stream *stream);
void stream_trace_update (DisplayChannel *display,
Drawable *drawable);
void stream_maintenance (DisplayChannel *display,
Drawable *candidate,
Drawable *prev);
void stream_timeout (DisplayChannel *display);
void stream_detach_and_stop (DisplayChannel *display);
void stream_trace_add_drawable (DisplayChannel *display,
Drawable *item);
void stream_detach_behind (DisplayChannel *display,
QRegion *region,
Drawable *drawable);
void stream_agent_unref (DisplayChannel *display,
StreamAgent *agent);
void stream_agent_stats_print (StreamAgent *agent);
void stream_agent_stop (StreamAgent *agent);
void detach_stream(DisplayChannel *display, Stream *stream, int detach_sized);
#endif /* STREAM_H */
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