#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	TRY_LOCK_SPIN_WAIT 1000 /* usec */

#define	DBG_STR_ARR_SIZE 40

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

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

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

static int	DebugNum (const VideoFrame *Frame)

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

const QString &	DebugString (uint FrameNum, bool Short)

Variables
int	next_dbg_str = 0

QString	dbg_str_arr [DBG_STR_ARR_SIZE]

QString	dbg_str_arr_short [DBG_STR_ARR_SIZE]

map< const VideoFrame *, 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.

◆ TRY_LOCK_SPIN_WAIT

#define TRY_LOCK_SPIN_WAIT 1000 /* usec */

Definition at line 24 of file videobuffers.cpp.

◆ DBG_STR_ARR_SIZE

#define DBG_STR_ARR_SIZE 40

Definition at line 1172 of file videobuffers.cpp.

Function Documentation

◆ ReleaseDecoderResources()

static void ReleaseDecoderResources	(	VideoFrame *	Frame,
		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 ( 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 1217 of file videobuffers.cpp.

Referenced by VideoBuffers::GetStatus().

◆ DebugNum()

static int DebugNum ( const VideoFrame * Frame )

static

Definition at line 1197 of file videobuffers.cpp.

Referenced by DebugString(), and to_bitmap().

◆ DebugString() [1/2]

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

Definition at line 1205 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 1212 of file videobuffers.cpp.

Variable Documentation

◆ next_dbg_str

int next_dbg_str = 0

Definition at line 26 of file videobuffers.cpp.

Referenced by DebugNum(), and VideoBuffers::DeleteBuffers().

◆ dbg_str_arr

QString dbg_str_arr[DBG_STR_ARR_SIZE]

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 1173 of file videobuffers.cpp.

Referenced by DebugString().

◆ dbg_str_arr_short

QString dbg_str_arr_short[DBG_STR_ARR_SIZE]