Rendering class. More...

#include <algorithm>
#include <atomic>
#include <functional>
#include <stdbool.h>
#include <unistd.h>
#include <inttypes.h>
#include <libintl.h>
#include <pthread.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <sys/mman.h>
#include <drm_fourcc.h>
#include "logger.h"
#include <libavcodec/avcodec.h>
#include <libavutil/hwcontext_drm.h>
#include <libavutil/pixdesc.h>
#include <libavfilter/buffersink.h>
#include <libavfilter/buffersrc.h>
#include <libavutil/opt.h>
#include "misc.h"
#include "buf2rgb.h"
#include "videorender.h"
#include "audio.h"
#include "drm.h"
#include "threads.h"
#include "grab.h"
#include "drmdevice.h"

Include dependency graph for videorender.cpp:

Go to the source code of this file.

Classes
struct	sRect

Macros
#define	__USE_GNU

#define	MIN(a, b) ((a) < (b) ? (a) : (b))

Functions
static sRect	ComputeFittedRect (AVFrame *frame, uint64_t dispX, uint64_t dispY, uint64_t dispWidth, uint64_t dispHeight)
	Fits the video frame into a given area. More...

static void	ReleaseFrame (__attribute__((unused)) void opaque, uint8_t data)
	Callback free primedata if av_buffer is unreferenced. More...

Detailed Description

Rendering class.

This file defines cVideoRender, which includes all methods to bring the video and osd to display.

Copyright: (c) 2009 - 2015 by Johns. All Rights Reserved.; (c) 2018 by zille. All Rights Reserved.; (c) 2025 by Andreas Baierl. All Rights Reserved.

License

AGPLv3

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License.

This program 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 Affero General Public License for more details.

Definition in file videorender.cpp.

Macro Definition Documentation

◆ __USE_GNU

#define __USE_GNU

Definition at line 26 of file videorender.cpp.

◆ MIN

#define MIN	(	a,
		b
	)	((a) < (b) ? (a) : (b))

Definition at line 739 of file videorender.cpp.

Function Documentation

◆ ComputeFittedRect()

static sRect ComputeFittedRect	(	AVFrame *	frame,
		uint64_t	dispX,
		uint64_t	dispY,
		uint64_t	dispWidth,
		uint64_t	dispHeight
	)

static

Fits the video frame into a given area.

Parameters

frame	AVFrame with frame dimensions and aspect ratio information
dispX	x offset of video area
dispY	y offset of video area
dispWidth	width of video area
dispHeight	height of video area

Returns: the new computed video area or the given area if no frame was given

Definition at line 162 of file videorender.cpp.

Referenced by cVideoRender::SetPipBuffer(), and cVideoRender::SetVideoBuffer().

◆ ReleaseFrame()

static void ReleaseFrame	(	__attribute__((unused)) void *	opaque,
		uint8_t *	data
	)

static

Callback free primedata if av_buffer is unreferenced.

Definition at line 824 of file videorender.cpp.

Referenced by cDecodingStrategySoftware::PrepareDrmBuffer().

Classes

Macros