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multifilesink

multifilesink

Properties

gchar * location Read / Write
gint index Read / Write
GstMultiFileSinkNext next-file Read / Write
gboolean post-messages Read / Write
guint max-files Read / Write
guint64 max-file-size Read / Write
gboolean aggregate-gops Read / Write
guint64 max-file-duration Read / Write

Types and Values

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstBaseSink
                    ╰── GstMultiFileSink

Description

Write incoming data to a series of sequentially-named files.

This element is usually used with data where each buffer is an independent unit of data in its own right (e.g. raw video buffers or encoded JPEG or PNG images) or with streamable container formats such as MPEG-TS or MPEG-PS.

It is not possible to use this element to create independently playable mp4 files, use the splitmuxsink element for that instead.

The filename property should contain a string with a %d placeholder that will be substituted with the index for each filename.

If the “post-messages” property is TRUE, it sends an application message named

"GstMultiFileSink" after writing each

buffer.

The message's structure contains these fields:

  • gchar * "filename": the filename where the buffer was written.

  • gint "index": the index of the buffer.

  • GstClockTime "timestamp": the timestamp of the buffer.

  • GstClockTime "stream-time": the stream time of the buffer.

  • GstClockTime "running-time": the running_time of the buffer.

  • GstClockTime "duration": the duration of the buffer.

  • guint64 "offset": the offset of the buffer that triggered the message.

  • guint64 "offset-end": the offset-end of the buffer that triggered the message.

Example launch line

1
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gst-launch-1.0 audiotestsrc ! multifilesink
gst-launch-1.0 videotestsrc ! multifilesink post-messages=true filename="frame%d"

Synopsis

Element Information

plugin

multifile

author

David Schleef <ds@schleef.org>

class

Sink/File

Element Pads

name

sink

direction

sink

presence

always

details

ANY

Functions

Types and Values

struct GstMultiFileSink

struct GstMultiFileSink;

enum GstMultiFileSinkNext

File splitting modes.

Members

GST_MULTI_FILE_SINK_NEXT_BUFFER

New file for each buffer

 

GST_MULTI_FILE_SINK_NEXT_DISCONT

New file after each discontinuity

 

GST_MULTI_FILE_SINK_NEXT_KEY_FRAME

New file at each key frame (Useful for MPEG-TS segmenting)

 

GST_MULTI_FILE_SINK_NEXT_KEY_UNIT_EVENT

New file after a force key unit event

 

GST_MULTI_FILE_SINK_NEXT_MAX_SIZE

New file when the configured maximum file size would be exceeded with the next buffer or buffer list

 

GST_MULTI_FILE_SINK_NEXT_MAX_DURATION

New file when the configured maximum duration would be exceeded with the next buffer or buffer list

 

Property Details

The “location” property

  “location”                 gchar *

Location of the file to write.

Flags: Read / Write

Default value: NULL


The “index” property

  “index”                    gint

Index to use with location property to create file names. The index is incremented by one for each buffer written.

Flags: Read / Write

Allowed values: >= 0

Default value: 0


The “next-file” property

  “next-file”                GstMultiFileSinkNext

When to start a new file.

Flags: Read / Write

Default value: New file for each buffer


The “post-messages” property

  “post-messages”            gboolean

Post a message on the GstBus for each file.

Flags: Read / Write

Default value: FALSE


The “max-files” property

  “max-files”                guint

Maximum number of files to keep on disk. Once the maximum is reached, old files start to be deleted to make room for new ones.

Flags: Read / Write

Default value: 0


The “max-file-size” property

  “max-file-size”            guint64

Maximum file size before starting a new file in max-size mode.

Flags: Read / Write

Default value: 2147483648


The “aggregate-gops” property

  “aggregate-gops”           gboolean

Whether to aggregate complete GOPs before doing any processing. Set this to TRUE to make sure each new file starts with a keyframe. This requires the upstream element to flag buffers containing key units and delta units correctly. At least the MPEG-PS and MPEG-TS muxers should be doing this.

Flags: Read / Write

Default value: FALSE

Since: 1.6


The “max-file-duration” property

  “max-file-duration”        guint64

Maximum file size before starting a new file in max-size mode.

Flags: Read / Write

Default value: 18446744073709551615

See Also

GstFileSrc

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