fmttracing

This tracer uses the tracing_subscriber::fmt subscriber to format tracing events. This provides human-readable output on stdout.

Example:

$ RUST_LOG=debug GST_TRACERS='fmttracing(log-level=4)' gst-launch-1.0 videotestsrc num-buffers=10 ! fakesink

Parameters

`log-level`

GStreamer log level to integrate (same format as GST_DEBUG).

`format`

Output format: full (default), compact, pretty, or json.

`with-time`

Whether to include timestamps in the output (default: true).

`with-target`

Whether to include the target in the output (default: true).

`with-ansi`

Whether to include ANSI color codes in the output (default: true).

Span lifecycle is always logged: a line is printed when a span opens (with its field values) and another when it closes (with its duration), so custom spans emitted via gst_trace_span_begin/gst_trace_span_end are visible.

Named constants

Fmt-tracer-format

Members

full (0) – Full: Complete event information

compact (1) – Compact: Single-line output

pretty (2) – Pretty: Visual indentation

json (3) – JSON: Machine-readable output

GstFmtTracer

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstTracer
                ╰──GstRsTracingTracer
                    ╰──GstFmtTracer

Properties

format

“format” Fmt-tracer-format *

Output format

Flags : Read / Write / Construct

Default value : full (0)

with-ansi

“with-ansi” gboolean

Include ANSI color codes

Flags : Read / Write / Construct

Default value : true

with-target

“with-target” gboolean

Include the target

Flags : Read / Write / Construct

Default value : true

with-time

“with-time” gboolean

Include timestamps

Flags : Read / Write / Construct

Default value : true

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