#include "mythconfig.h"
#include "mythcontext.h"
#include "fourcc.h"
#include "compat.h"
#include "mythlogging.h"
#include "mythcodecid.h"
#include "videobuffers.h"
#include "libavcodec/avcodec.h"
#include <chrono>
#include <thread>

Include dependency graph for videobuffers.cpp:

Macros
#define	TRY_LOCK_SPINS 2000

#define	TRY_LOCK_SPINS_BEFORE_WARNING 9999

#define	DBG_STR_ARR_SIZE 40

Functions
static void	ReleaseDecoderResources (MythVideoFrame Frame, std::vector< AVBufferRef > &Discards)
	Store AVBufferRef's for later disposal. More...

static void	DoDiscard (const std::vector< AVBufferRef * > &Discards)

static unsigned long long	to_bitmap (const frame_queue_t &Queue, int Num)

static int	DebugNum (const MythVideoFrame *Frame)

const QString &	DebugString (const MythVideoFrame *Frame, bool Short)

const QString &	DebugString (uint FrameNum, bool Short)

Variables
static constexpr std::chrono::milliseconds	TRY_LOCK_SPIN_WAIT { 1ms }

int	next_dbg_str = 0

const std::array< const QString, DBG_STR_ARR_SIZE >	dbg_str_arr

const std::array< const QString, DBG_STR_ARR_SIZE >	dbg_str_arr_short

std::map< const MythVideoFrame *, int >	dbg_str

Macro Definition Documentation

◆ TRY_LOCK_SPINS

#define TRY_LOCK_SPINS 2000

Definition at line 22 of file videobuffers.cpp.

◆ TRY_LOCK_SPINS_BEFORE_WARNING

#define TRY_LOCK_SPINS_BEFORE_WARNING 9999

Definition at line 23 of file videobuffers.cpp.

◆ DBG_STR_ARR_SIZE

#define DBG_STR_ARR_SIZE 40

Definition at line 1064 of file videobuffers.cpp.

Function Documentation

◆ ReleaseDecoderResources()

static void ReleaseDecoderResources	(	MythVideoFrame *	Frame,
		std::vector< AVBufferRef * > &	Discards
	)

inlinestatic

Store AVBufferRef's for later disposal.

Note: Releasing hardware buffer references will at some point trigger the deletion of AVBufferPool's, which in turn trigger the release of hardware contexts and OpenGL interops - which may trigger a blocking callback. We cannot hold the videobuffer lock while doing this as there are numerous playback paths that can request the video buffer lock while the decoder thread is blocking. So store the buffers and release once the master videobuffer lock is released.

Definition at line 37 of file videobuffers.cpp.

Referenced by VideoBuffers::ClearAfterSeek(), VideoBuffers::DeLimboFrame(), VideoBuffers::DiscardAndRecreate(), VideoBuffers::DiscardFrame(), VideoBuffers::DiscardFrames(), VideoBuffers::DiscardPauseFrames(), and VideoBuffers::DoneDisplayingFrame().

◆ DoDiscard()

static void DoDiscard ( const std::vector< AVBufferRef * > & Discards )

inlinestatic

Definition at line 56 of file videobuffers.cpp.

Referenced by VideoBuffers::ClearAfterSeek(), VideoBuffers::DeLimboFrame(), VideoBuffers::DiscardAndRecreate(), VideoBuffers::DiscardFrame(), VideoBuffers::DiscardFrames(), VideoBuffers::DiscardPauseFrames(), and VideoBuffers::DoneDisplayingFrame().

◆ to_bitmap()

static unsigned long long to_bitmap	(	const frame_queue_t &	Queue,
		int	Num
	)

static

Definition at line 1109 of file videobuffers.cpp.

Referenced by VideoBuffers::GetStatus().

◆ DebugNum()

static int DebugNum ( const MythVideoFrame * Frame )

static

Definition at line 1089 of file videobuffers.cpp.

Referenced by DebugString(), and to_bitmap().

◆ DebugString() [1/2]

const QString& DebugString	(	const MythVideoFrame *	Frame,
		bool	Short
	)

Definition at line 1097 of file videobuffers.cpp.

Referenced by VideoBuffers::DiscardAndRecreate(), VideoBuffers::DiscardFrames(), and VideoBuffers::GetNextFreeFrameInternal().

◆ DebugString() [2/2]

const QString& DebugString	(	uint	FrameNum,
		bool	Short
	)

Definition at line 1104 of file videobuffers.cpp.

Variable Documentation

◆ TRY_LOCK_SPIN_WAIT

constexpr std::chrono::milliseconds TRY_LOCK_SPIN_WAIT { 1ms }

staticconstexpr

Definition at line 24 of file videobuffers.cpp.

Referenced by VideoBuffers::GetNextFreeFrame().

◆ next_dbg_str

int next_dbg_str = 0

Definition at line 26 of file videobuffers.cpp.

Referenced by DebugNum().

◆ dbg_str_arr

const std::array<const QString,DBG_STR_ARR_SIZE> dbg_str_arr

Initial value:

{
    "A       ",    " B      ",    "  C     ",    "   D    ",
    "    E   ",    "     F  ",    "      G ",    "       H", 
    "a       ",    " b      ",    "  c     ",    "   d    ",
    "    e   ",    "     f  ",    "      g ",    "       h", 
    "0       ",    " 1      ",    "  2     ",    "   3    ",
    "    4   ",    "     5  ",    "      6 ",    "       7", 
    "I       ",    " J      ",    "  K     ",    "   L    ",
    "    M   ",    "     N  ",    "      O ",    "       P", 
    "i       ",    " j      ",    "  k     ",    "   l    ",
    "    m   ",    "     n  ",    "      o ",    "       p", 
}

Definition at line 1066 of file videobuffers.cpp.

Referenced by DebugString().

◆ dbg_str_arr_short

const std::array<const QString,DBG_STR_ARR_SIZE> dbg_str_arr_short