ffmpegkit.c File Reference

Go to the source code of this file.

Data Structures
struct	CallbackData

Macros
#define	LogType   1
#define	StatisticsType   2
#define	SESSION_MAP_SIZE   1000

Functions
int	ffmpeg_execute (int argc, char **argv)
static const char *	avutil_log_get_level_str (int level)
static void	avutil_log_format_line (void *avcl, int level, const char *fmt, va_list vl, AVBPrint part[4], int *print_prefix)
static void	avutil_log_sanitize (uint8_t *line)
void	mutexInit ()
void	monitorInit ()
void	mutexUnInit ()
void	monitorUnInit ()
void	mutexLock ()
void	mutexUnlock ()
void	monitorWait (int milliSeconds)
void	monitorNotify ()
void	logCallbackDataAdd (int level, AVBPrint *data)
void	statisticsCallbackDataAdd (int frameNumber, float fps, float quality, int64_t size, double time, double bitrate, double speed)
void	addSession (long id)
struct CallbackData *	callbackDataRemove ()
void	removeSession (long id)
void	cancelSession (long id)
int	cancelRequested (long id)
void	resetMessagesInTransmit (long id)
void	ffmpegkit_log_callback_function (void *ptr, int level, const char *format, va_list vargs)
void	ffmpegkit_statistics_callback_function (int frameNumber, float fps, float quality, int64_t size, double time, double bitrate, double speed)
void *	callbackThreadFunction ()
int	saf_open (int safId)
int	saf_close (int fd)
static void	enableNativeRedirection ()
jint	JNI_OnLoad (JavaVM *vm, void *reserved)
JNIEXPORT void JNICALL	Java_com_arthenica_ffmpegkit_FFmpegKitConfig_setNativeLogLevel (JNIEnv *env, jclass object, jint level)
JNIEXPORT jint JNICALL	Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeLogLevel (JNIEnv *env, jclass object)
JNIEXPORT void JNICALL	Java_com_arthenica_ffmpegkit_FFmpegKitConfig_enableNativeRedirection (JNIEnv *env, jclass object)
JNIEXPORT void JNICALL	Java_com_arthenica_ffmpegkit_FFmpegKitConfig_disableNativeRedirection (JNIEnv *env, jclass object)
JNIEXPORT jstring JNICALL	Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeFFmpegVersion (JNIEnv *env, jclass object)
JNIEXPORT jstring JNICALL	Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeVersion (JNIEnv *env, jclass object)
JNIEXPORT jint JNICALL	Java_com_arthenica_ffmpegkit_FFmpegKitConfig_nativeFFmpegExecute (JNIEnv *env, jclass object, jlong id, jobjectArray stringArray)
JNIEXPORT void JNICALL	Java_com_arthenica_ffmpegkit_FFmpegKitConfig_nativeFFmpegCancel (JNIEnv *env, jclass object, jlong id)
JNIEXPORT int JNICALL	Java_com_arthenica_ffmpegkit_FFmpegKitConfig_registerNewNativeFFmpegPipe (JNIEnv *env, jclass object, jstring ffmpegPipePath)
JNIEXPORT jstring JNICALL	Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeBuildDate (JNIEnv *env, jclass object)
JNIEXPORT int JNICALL	Java_com_arthenica_ffmpegkit_FFmpegKitConfig_setNativeEnvironmentVariable (JNIEnv *env, jclass object, jstring variableName, jstring variableValue)
JNIEXPORT void JNICALL	Java_com_arthenica_ffmpegkit_FFmpegKitConfig_ignoreNativeSignal (JNIEnv *env, jclass object, jint signum)
JNIEXPORT int JNICALL	Java_com_arthenica_ffmpegkit_FFmpegKitConfig_messagesInTransmit (JNIEnv *env, jclass object, jlong id)

Variables
static atomic_short	sessionMap [SESSION_MAP_SIZE]
static atomic_int	sessionInTransitMessageCountMap [SESSION_MAP_SIZE]
static pthread_mutex_t	lockMutex
static pthread_mutex_t	monitorMutex
static pthread_cond_t	monitorCondition
pthread_t	callbackThread
int	redirectionEnabled
struct CallbackData *	callbackDataHead
struct CallbackData *	callbackDataTail
static JavaVM *	globalVm
static jclass	configClass
static jmethodID	logMethod
static jmethodID	statisticsMethod
static jmethodID	safOpenMethod
static jmethodID	safCloseMethod
static jclass	stringClass
static jmethodID	stringConstructor
const char *	configClassName = "com/arthenica/ffmpegkit/FFmpegKitConfig"
const char *	stringClassName = "java/lang/String"
volatile int	handleSIGQUIT = 1
volatile int	handleSIGINT = 1
volatile int	handleSIGTERM = 1
volatile int	handleSIGXCPU = 1
volatile int	handleSIGPIPE = 1
__thread long	globalSessionId = 0
int	configuredLogLevel = AV_LOG_INFO
JNINativeMethod	configMethods []

Macro Definition Documentation

LogType

#define LogType   1

Definition at line 33 of file ffmpegkit.c.

SESSION_MAP_SIZE

#define SESSION_MAP_SIZE   1000

Session control variables

Definition at line 56 of file ffmpegkit.c.

StatisticsType

#define StatisticsType   2

Definition at line 34 of file ffmpegkit.c.

Function Documentation

addSession()

void addSession

(

long

id

)

Adds a session id to the session map.

Parameters

id	session id

Definition at line 361 of file ffmpegkit.c.

avutil_log_format_line()

static void avutil_log_format_line ( void *  avcl, int  level, const char *  fmt, va_list  vl, AVBPrint  part[4], int *  print_prefix  )

static

Definition at line 160 of file ffmpegkit.c.

avutil_log_get_level_str()

static const char * avutil_log_get_level_str ( int  level )

static

Definition at line 135 of file ffmpegkit.c.

avutil_log_sanitize()

static void avutil_log_sanitize ( uint8_t *  line )

static

Definition at line 192 of file ffmpegkit.c.

callbackDataRemove()

struct CallbackData * callbackDataRemove

(

)

Removes head of callback data list.

Definition at line 368 of file ffmpegkit.c.

callbackThreadFunction()

void * callbackThreadFunction

(

)

Forwards callback messages to Java classes.

Definition at line 501 of file ffmpegkit.c.

cancelRequested()

int cancelRequested

(

long

id

)

Checks whether a cancel request for the given session id exists in the session map.

Parameters

id	session id

Returns

1 if exists, false otherwise

Definition at line 421 of file ffmpegkit.c.

cancelSession()

void cancelSession

(

long

id

)

Adds a cancel session request to the session map.

Parameters

id	session id

Definition at line 411 of file ffmpegkit.c.

enableNativeRedirection()

static void enableNativeRedirection ( )

static

Used by JNI methods to enable redirection.

Definition at line 587 of file ffmpegkit.c.

ffmpeg_execute()

int ffmpeg_execute	(	int	argc,
		char **	argv
	)

Forward declaration for function defined in fftools_ffmpeg.c

Definition at line 4378 of file fftools_ffmpeg.c.

ffmpegkit_log_callback_function()

void ffmpegkit_log_callback_function	(	void *	ptr,
		int	level,
		const char *	format,
		va_list	vargs
	)

Callback function for FFmpeg logs.

Parameters

ptr	pointer to AVClass struct
level	log level
format	format string
vargs	arguments

Definition at line 446 of file ffmpegkit.c.

ffmpegkit_statistics_callback_function()

void ffmpegkit_statistics_callback_function	(	int	frameNumber,
		float	fps,
		float	quality,
		int64_t	size,
		double	time,
		double	bitrate,
		double	speed
	)

Callback function for FFmpeg statistics.

Parameters

frameNumber	last processed frame number
fps	frames processed per second
quality	quality of the output stream (video only)
size	size in bytes
time	processed output duration
bitrate	output bit rate in kbits/s
speed	processing speed = processed duration / operation duration

Definition at line 494 of file ffmpegkit.c.

Java_com_arthenica_ffmpegkit_FFmpegKitConfig_disableNativeRedirection()

JNIEXPORT void JNICALL Java_com_arthenica_ffmpegkit_FFmpegKitConfig_disableNativeRedirection	(	JNIEnv *	env,
		jclass	object
	)

Disables log and statistics redirection.

Parameters

env	pointer to native method interface
object	reference to the class on which this method is invoked

Definition at line 734 of file ffmpegkit.c.

Java_com_arthenica_ffmpegkit_FFmpegKitConfig_enableNativeRedirection()

JNIEXPORT void JNICALL Java_com_arthenica_ffmpegkit_FFmpegKitConfig_enableNativeRedirection	(	JNIEnv *	env,
		jclass	object
	)

Enables log and statistics redirection.

Parameters

env	pointer to native method interface
object	reference to the class on which this method is invoked

Definition at line 724 of file ffmpegkit.c.

Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeBuildDate()

JNIEXPORT jstring JNICALL Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeBuildDate	(	JNIEnv *	env,
		jclass	object
	)

Returns FFmpegKit library build date natively.

Parameters

env	pointer to native method interface
object	reference to the class on which this method is invoked

Returns

FFmpegKit library build date

Definition at line 874 of file ffmpegkit.c.

Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeFFmpegVersion()

JNIEXPORT jstring JNICALL Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeFFmpegVersion	(	JNIEnv *	env,
		jclass	object
	)

Returns FFmpeg version bundled within the library natively.

Parameters

env	pointer to native method interface
object	reference to the class on which this method is invoked

Returns

FFmpeg version string

Definition at line 759 of file ffmpegkit.c.

Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeLogLevel()

JNIEXPORT jint JNICALL Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeLogLevel	(	JNIEnv *	env,
		jclass	object
	)

Returns current log level.

Parameters

env	pointer to native method interface
object	reference to the class on which this method is invoked

Definition at line 714 of file ffmpegkit.c.

Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeVersion()

JNIEXPORT jstring JNICALL Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeVersion	(	JNIEnv *	env,
		jclass	object
	)

Returns FFmpegKit library version natively.

Parameters

env	pointer to native method interface
object	reference to the class on which this method is invoked

Returns

FFmpegKit version string

Definition at line 770 of file ffmpegkit.c.

Java_com_arthenica_ffmpegkit_FFmpegKitConfig_ignoreNativeSignal()

JNIEXPORT void JNICALL Java_com_arthenica_ffmpegkit_FFmpegKitConfig_ignoreNativeSignal	(	JNIEnv *	env,
		jclass	object,
		jint	signum
	)

Registers a new ignored signal. Ignored signals are not handled by the library.

Parameters

env	pointer to native method interface
object	reference to the class on which this method is invoked
signum	signal number

Definition at line 907 of file ffmpegkit.c.

Java_com_arthenica_ffmpegkit_FFmpegKitConfig_messagesInTransmit()

JNIEXPORT int JNICALL Java_com_arthenica_ffmpegkit_FFmpegKitConfig_messagesInTransmit	(	JNIEnv *	env,
		jclass	object,
		jlong	id
	)

Returns the number of native messages which are not transmitted to the Java callbacks for the given session.

Parameters

env	pointer to native method interface
object	reference to the class on which this method is invoked
id	session id

Definition at line 929 of file ffmpegkit.c.

Java_com_arthenica_ffmpegkit_FFmpegKitConfig_nativeFFmpegCancel()

JNIEXPORT void JNICALL Java_com_arthenica_ffmpegkit_FFmpegKitConfig_nativeFFmpegCancel	(	JNIEnv *	env,
		jclass	object,
		jlong	id
	)

Cancels an ongoing FFmpeg operation natively.

Parameters

env	pointer to native method interface
object	reference to the class on which this method is invoked
id	session id

Definition at line 849 of file ffmpegkit.c.

Java_com_arthenica_ffmpegkit_FFmpegKitConfig_nativeFFmpegExecute()

JNIEXPORT jint JNICALL Java_com_arthenica_ffmpegkit_FFmpegKitConfig_nativeFFmpegExecute	(	JNIEnv *	env,
		jclass	object,
		jlong	id,
		jobjectArray	stringArray
	)

Synchronously executes FFmpeg natively with arguments provided.

Parameters

env	pointer to native method interface
object	reference to the class on which this method is invoked
id	session id
stringArray	reference to the object holding FFmpeg command arguments

Returns

zero on successful execution, non-zero on error

Definition at line 783 of file ffmpegkit.c.

Java_com_arthenica_ffmpegkit_FFmpegKitConfig_registerNewNativeFFmpegPipe()

JNIEXPORT int JNICALL Java_com_arthenica_ffmpegkit_FFmpegKitConfig_registerNewNativeFFmpegPipe	(	JNIEnv *	env,
		jclass	object,
		jstring	ffmpegPipePath
	)

Creates natively a new named pipe to use in FFmpeg operations.

Parameters

env	pointer to native method interface
object	reference to the class on which this method is invoked
ffmpegPipePath	full path of ffmpeg pipe

Returns

zero on successful creation, non-zero on error

Definition at line 861 of file ffmpegkit.c.

Java_com_arthenica_ffmpegkit_FFmpegKitConfig_setNativeEnvironmentVariable()

JNIEXPORT int JNICALL Java_com_arthenica_ffmpegkit_FFmpegKitConfig_setNativeEnvironmentVariable	(	JNIEnv *	env,
		jclass	object,
		jstring	variableName,
		jstring	variableValue
	)

Sets an environment variable natively

Parameters

env	pointer to native method interface
object	reference to the class on which this method is invoked
variableName	environment variable name
variableValue	environment variable value

Returns

zero on success, non-zero on error

Definition at line 889 of file ffmpegkit.c.

Java_com_arthenica_ffmpegkit_FFmpegKitConfig_setNativeLogLevel()

JNIEXPORT void JNICALL Java_com_arthenica_ffmpegkit_FFmpegKitConfig_setNativeLogLevel	(	JNIEnv *	env,
		jclass	object,
		jint	level
	)

Sets log level.

Parameters

env	pointer to native method interface
object	reference to the class on which this method is invoked
level	log level

Definition at line 704 of file ffmpegkit.c.

JNI_OnLoad()

jint JNI_OnLoad	(	JavaVM *	vm,
		void *	reserved
	)

Called when 'ffmpegkit' native library is loaded.

Parameters

vm	pointer to the running virtual machine
reserved	reserved

Returns

JNI version needed by 'ffmpegkit' library

Definition at line 615 of file ffmpegkit.c.

logCallbackDataAdd()

void logCallbackDataAdd	(	int	level,
		AVBPrint *	data
	)

Adds log data to the end of callback data list.

Parameters

level	log level
data	log data

Definition at line 276 of file ffmpegkit.c.

monitorInit()

void monitorInit

(

)

Definition at line 209 of file ffmpegkit.c.

monitorNotify()

void monitorNotify

(

)

Definition at line 264 of file ffmpegkit.c.

monitorUnInit()

void monitorUnInit

(

)

Definition at line 229 of file ffmpegkit.c.

monitorWait()

void monitorWait

(

int

milliSeconds

)

Definition at line 242 of file ffmpegkit.c.

mutexInit()

void mutexInit

(

)

Definition at line 200 of file ffmpegkit.c.

mutexLock()

void mutexLock

(

)

Definition at line 234 of file ffmpegkit.c.

mutexUnInit()

void mutexUnInit

(

)

Definition at line 225 of file ffmpegkit.c.

mutexUnlock()

void mutexUnlock

(

)

Definition at line 238 of file ffmpegkit.c.

removeSession()

void removeSession

(

long

id

)

Removes a session id from the session map.

Parameters

id	session id

Definition at line 402 of file ffmpegkit.c.

resetMessagesInTransmit()

void resetMessagesInTransmit

(

long

id

)

Resets the number of messages in transmit for this session.

Parameters

id	session id

Definition at line 434 of file ffmpegkit.c.

saf_close()

int saf_close

(

int

fd

)

Used by saf protocol; is expected to be called from a Java thread, therefore we don't need attach/detach

Definition at line 578 of file ffmpegkit.c.

saf_open()

int saf_open

(

int

safId

)

Used by saf protocol; is expected to be called from a Java thread, therefore we don't need attach/detach

Definition at line 569 of file ffmpegkit.c.

statisticsCallbackDataAdd()

void statisticsCallbackDataAdd	(	int	frameNumber,
		float	fps,
		float	quality,
		int64_t	size,
		double	time,
		double	bitrate,
		double	speed
	)

Adds statistics data to the end of callback data list.

Definition at line 315 of file ffmpegkit.c.

Variable Documentation

callbackDataHead

struct CallbackData* callbackDataHead

Definition at line 68 of file ffmpegkit.c.

callbackDataTail

struct CallbackData* callbackDataTail

Definition at line 69 of file ffmpegkit.c.

callbackThread

pthread_t callbackThread

Definition at line 65 of file ffmpegkit.c.

configClass

jclass configClass

static

Global reference of Config class in Java

Definition at line 75 of file ffmpegkit.c.

configClassName

const char* configClassName = "com/arthenica/ffmpegkit/FFmpegKitConfig"

Full name of the Config class

Definition at line 96 of file ffmpegkit.c.

configMethods

JNINativeMethod configMethods[]

Initial value:

= {
    {"enableNativeRedirection", "()V", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_enableNativeRedirection},
    {"disableNativeRedirection", "()V", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_disableNativeRedirection},
    {"setNativeLogLevel", "(I)V", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_setNativeLogLevel},
    {"getNativeLogLevel", "()I", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeLogLevel},
    {"getNativeFFmpegVersion", "()Ljava/lang/String;", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeFFmpegVersion},
    {"getNativeVersion", "()Ljava/lang/String;", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeVersion},
    {"nativeFFmpegExecute", "(J[Ljava/lang/String;)I", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_nativeFFmpegExecute},
    {"nativeFFmpegCancel", "(J)V", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_nativeFFmpegCancel},
    {"nativeFFprobeExecute", "(J[Ljava/lang/String;)I", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_nativeFFprobeExecute},
    {"registerNewNativeFFmpegPipe", "(Ljava/lang/String;)I", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_registerNewNativeFFmpegPipe},
    {"getNativeBuildDate", "()Ljava/lang/String;", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_getNativeBuildDate},
    {"setNativeEnvironmentVariable", "(Ljava/lang/String;Ljava/lang/String;)I", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_setNativeEnvironmentVariable},
    {"ignoreNativeSignal", "(I)V", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_ignoreNativeSignal},
    {"messagesInTransmit", "(J)I", (void*) Java_com_arthenica_ffmpegkit_FFmpegKitConfig_messagesInTransmit}
}

Prototypes of native functions defined by Config class.

Definition at line 115 of file ffmpegkit.c.

configuredLogLevel

int configuredLogLevel = AV_LOG_INFO

Holds the default log level

Definition at line 112 of file ffmpegkit.c.

globalSessionId

__thread long globalSessionId = 0

Holds the id of the current session

Definition at line 109 of file ffmpegkit.c.

globalVm

JavaVM* globalVm

static

Global reference to the virtual machine running

Definition at line 72 of file ffmpegkit.c.

handleSIGINT

volatile int handleSIGINT = 1

Definition at line 103 of file ffmpegkit.c.

handleSIGPIPE

volatile int handleSIGPIPE = 1

Definition at line 106 of file ffmpegkit.c.

handleSIGQUIT

volatile int handleSIGQUIT = 1

Fields that control the handling of SIGNALs

Definition at line 102 of file ffmpegkit.c.

handleSIGTERM

volatile int handleSIGTERM = 1

Definition at line 104 of file ffmpegkit.c.

handleSIGXCPU

volatile int handleSIGXCPU = 1

Definition at line 105 of file ffmpegkit.c.

lockMutex

pthread_mutex_t lockMutex

static

Redirection control variables

Definition at line 61 of file ffmpegkit.c.

logMethod

jmethodID logMethod

static

Global reference of log redirection method in Java

Definition at line 78 of file ffmpegkit.c.

monitorCondition

pthread_cond_t monitorCondition

static

Definition at line 63 of file ffmpegkit.c.

monitorMutex

pthread_mutex_t monitorMutex

static

Definition at line 62 of file ffmpegkit.c.

redirectionEnabled

int redirectionEnabled

Definition at line 66 of file ffmpegkit.c.

safCloseMethod

jmethodID safCloseMethod

static

Global reference of safClose method in Java

Definition at line 87 of file ffmpegkit.c.

safOpenMethod

jmethodID safOpenMethod

static

Global reference of safOpen method in Java

Definition at line 84 of file ffmpegkit.c.

sessionInTransitMessageCountMap

atomic_int sessionInTransitMessageCountMap[SESSION_MAP_SIZE]

static

Definition at line 58 of file ffmpegkit.c.

sessionMap

atomic_short sessionMap[SESSION_MAP_SIZE]

static

Definition at line 57 of file ffmpegkit.c.

statisticsMethod

jmethodID statisticsMethod

static

Global reference of statistics redirection method in Java

Definition at line 81 of file ffmpegkit.c.

stringClass

jclass stringClass

static

Global reference of String class in Java

Definition at line 90 of file ffmpegkit.c.

stringClassName

const char* stringClassName = "java/lang/String"

Full name of String class

Definition at line 99 of file ffmpegkit.c.

stringConstructor

jmethodID stringConstructor

static

Global reference of String constructor in Java

Definition at line 93 of file ffmpegkit.c.