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List: gstreamer-cvs
Subject: gst-docs: design: probes: fix subsection breakdown
From: reynaldo () kemper ! freedesktop ! org (Reynaldo H ! Verdejo Pinochet)
Date: 2016-12-29 7:13:39
Message-ID: 20161229071339.2CBA9761AB () kemper ! freedesktop ! org
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Module: gst-docs
Branch: master
Commit: b0493c9845bc59565986ac3f32259238a771bf9f
URL: http://cgit.freedesktop.org/gstreamer/gst-docs/commit/?id=b0493c9845bc59565986ac3f32259238a771bf9f
Author: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>
Date: Wed Dec 28 22:11:18 2016 -0800
design: probes: fix subsection breakdown
Additionally, add missing markup while at it.
---
markdown/design/probes.md | 36 ++++++++++++++++++------------------
1 file changed, 18 insertions(+), 18 deletions(-)
diff --git a/markdown/design/probes.md b/markdown/design/probes.md
index aa26266..1dc3e8d 100644
--- a/markdown/design/probes.md
+++ b/markdown/design/probes.md
@@ -3,7 +3,7 @@
Probes are callbacks that can be installed by the application and will notify
the application about the states of the dataflow.
-# Requirements
+## Requirements
Applications should be able to monitor and control the dataflow on pads.
We identify the following types:
@@ -22,9 +22,9 @@ We identify the following types:
performed by the application
thread.
-# Overview
+## Overview
-The function gst_pad_add_probe() is used to add a probe to a pad. It accepts a
+The function `gst_pad_add_probe()` is used to add a probe to a pad. It accepts a
probe type mask and a callback.
``` c
@@ -36,7 +36,7 @@ probe type mask and a callback.
```
The function returns a gulong that uniquely identifies the probe and that can
-be used to remove the probe with gst_pad_remove_probe():
+be used to remove the probe with `gst_pad_remove_probe()`:
``` c
void gst_pad_remove_probe (GstPad *pad, gulong id);
@@ -100,14 +100,14 @@ typedef enum
} GstPadProbeReturn;
```
-`GST_PAD_PROBE_OK` is the normal return value. DROP will drop the item that is
-currently being probed. GST_PAD_PROBE_REMOVE the currently executing probe from the
+`GST_PAD_PROBE_OK` is the normal return value. DROP will drop the item that is
+currently being probed. `GST_PAD_PROBE_REMOVE` the currently executing probe from \
the list of probes.
`GST_PAD_PROBE_PASS` is relevant for blocking probes and will temporarily unblock \
the pad and let the item trough, it will then block again on the next item.
-# Blocking probes
+## Blocking probes
Blocking probes are probes with BLOCK or IDLE flags set. They will always
block the dataflow and trigger the callback according to the following rules:
@@ -127,19 +127,19 @@ When the BLOCK flag is set, the probe callback will be called \
when new data arrives on the pad and right before the pad goes into the blocking \
state. This callback is thus only called when there is new data on the pad.
-The blocking probe is removed with gst_pad_remove_probe() or when the probe
-callback return GST_PAD_PROBE_REMOVE. In both cases, and if this was the last
+The blocking probe is removed with `gst_pad_remove_probe()` or when the probe
+callback return `GST_PAD_PROBE_REMOVE`. In both cases, and if this was the last
blocking probe on the pad, the pad is unblocked and dataflow can continue.
-# Non-Blocking probes
+## Non-Blocking probes
Non-blocking probes or DATA probes are probes triggered when data is flowing
over the pad. The are called after the blocking probes are run and always with
data.
-# Push dataflow
+## Push dataflow
-Push probes have the GST\_PAD\_PROBE\_TYPE\_PUSH flag set in the
+Push probes have the `GST_PAD_PROBE_TYPE_PUSH` flag set in the
callbacks.
In push based scheduling, the blocking probe is called first with the
@@ -194,7 +194,7 @@ gst_pad_push_event() | |
| |
```
-# Pull dataflow
+## Pull dataflow
Pull probes have the `GST_PAD_PROBE_TYPE_PULL` flag set in the
callbacks.
@@ -250,9 +250,9 @@ do BLOCK probes <-O O
| |
```
-# Queries
+## Queries
-Query probes have the GST_PAD_PROBE_TYPE_QUERY_* flag set in the
+Query probes have the `GST_PAD_PROBE_TYPE_QUERY_*` flag set in the
callbacks.
```
@@ -290,9 +290,9 @@ For queries, the PUSH ProbeType is set when the query is \
traveling to the object that will answer the query and the PULL type is set when the
query contains the answer.
-# Use-cases
+## Use-cases
-## Prerolling a partial pipeline
+### Prerolling a partial pipeline
```
.---------. .---------. .----------.
@@ -325,7 +325,7 @@ prerolled pipeline:
- connect other elements and unblock the blocked pads.
-## dynamically switching an element in a PLAYING pipeline
+### dynamically switching an element in a PLAYING pipeline
```
.----------. .----------. .----------.
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