org.jmisb.core.video

Class FfmpegUtils

java.lang.Object

org.jmisb.core.video.FfmpegUtils

public class FfmpegUtils
extends Object

Utility methods for common FFmpeg operations

Method Summary

Modifier and Type	Method and Description
static String	formatError(int error) Get the string for a given FFmpeg error code
static int	fourCcToTag(String str) Convert four CC string to an integer tag
static String	getCodecName(org.bytedeco.ffmpeg.avformat.AVFormatContext context, int index)
static org.bytedeco.ffmpeg.avformat.AVStream	getDataStream(org.bytedeco.ffmpeg.avformat.AVFormatContext context)
static int	getDataStreamIndex(org.bytedeco.ffmpeg.avformat.AVFormatContext context)
static double	getDuration(org.bytedeco.ffmpeg.avformat.AVFormatContext context) Get the file duration
static double	getFrameRate(org.bytedeco.ffmpeg.avformat.AVFormatContext context) Get the frame rate
static int	getNumStreams(org.bytedeco.ffmpeg.avformat.AVFormatContext context)
static int	getStreamType(org.bytedeco.ffmpeg.avformat.AVFormatContext context, int index)
static org.bytedeco.ffmpeg.avformat.AVStream	getVideoStream(org.bytedeco.ffmpeg.avformat.AVFormatContext context)
static int	getVideoStreamIndex(org.bytedeco.ffmpeg.avformat.AVFormatContext context)
static String	tagToFourCc(int i) Convert 32-bit integer codec tag to a four CC string

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

formatError

public static String formatError(int error)

Get the string for a given FFmpeg error code

Parameters:

error - The error code

Returns:

The error description

getVideoStream

public static org.bytedeco.ffmpeg.avformat.AVStream getVideoStream(org.bytedeco.ffmpeg.avformat.AVFormatContext context)

getDataStream

public static org.bytedeco.ffmpeg.avformat.AVStream getDataStream(org.bytedeco.ffmpeg.avformat.AVFormatContext context)

getVideoStreamIndex

public static int getVideoStreamIndex(org.bytedeco.ffmpeg.avformat.AVFormatContext context)

getDataStreamIndex

public static int getDataStreamIndex(org.bytedeco.ffmpeg.avformat.AVFormatContext context)

tagToFourCc

public static String tagToFourCc(int i)

Convert 32-bit integer codec tag to a four CC string

Parameters:

i - The codec tag

Returns:

4-character string with the four CC

fourCcToTag

public static int fourCcToTag(String str)

Convert four CC string to an integer tag

Parameters:

str - 4-character string with the four CC

Returns:

Integer codec tag

getDuration

public static double getDuration(org.bytedeco.ffmpeg.avformat.AVFormatContext context)

Get the file duration

Parameters:

context - The format context

Returns:

The duration, in seconds

getFrameRate

public static double getFrameRate(org.bytedeco.ffmpeg.avformat.AVFormatContext context)

Get the frame rate

Parameters:

context - The format context

Returns:

The frame rate, in frames per second

getNumStreams

public static int getNumStreams(org.bytedeco.ffmpeg.avformat.AVFormatContext context)

getStreamType

public static int getStreamType(org.bytedeco.ffmpeg.avformat.AVFormatContext context,
                                int index)

getCodecName

public static String getCodecName(org.bytedeco.ffmpeg.avformat.AVFormatContext context,
                                  int index)