diff options
| -rw-r--r-- | markdown/tutorials/basic/concepts.md | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/markdown/tutorials/basic/concepts.md b/markdown/tutorials/basic/concepts.md index 24316f1..d93fe29 100644 --- a/markdown/tutorials/basic/concepts.md +++ b/markdown/tutorials/basic/concepts.md @@ -116,10 +116,9 @@ int main(int argc, char *argv[]) { ## Walkthrough -The basic construction block of GStreamer are the elements, which -process the data as it flows *downstream* from the source elements (the -producers of data) to the sink elements (the consumers of data), passing -through filter elements. +The *elements* are GStreamer's basic construction blocks. They process +the data as it flows *downstream* from the source elements (data producers) +to the sink elements (data consumers), passing through filter elements.  @@ -187,7 +186,7 @@ A pipeline is a particular type of `bin`, which is the element used to contain other elements. Therefore all methods which apply to bins also apply to pipelines. In our case, we call `gst_bin_add_many()` to add the elements to the pipeline (mind the cast). This function accepts a list -of elements to be added, ending with NULL. Individual elements can be +of elements to be added, ending with `NULL`. Individual elements can be added with `gst_bin_add()`. These elements, however, are not linked with each other yet. For this, @@ -213,11 +212,12 @@ properties) or inquired to find out about the element's internal state Properties are read from with `g_object_get()` and written to with `g_object_set()`. -`g_object_set()` accepts a NULL-terminated list of property-name, -property-value pairs, so multiple properties can be changed in one go -(GStreamer elements are all a particular kind of `GObject`, which is the -entity offering property facilities: This is why the property handling -methods have the `g_` prefix). +`g_object_set()` accepts a `NULL`-terminated list of property-name, +property-value pairs, so multiple properties can be changed in one go. + +GStreamer elements are all a particular kind of `GObject`, which is the +entity offering property facilities. This is why the property handling +methods have the `g_` prefix. The line of code above changes the “pattern” property of `videotestsrc`, which controls the type of test video the element outputs. Try different @@ -281,7 +281,7 @@ if (msg != NULL) { `gst_bus_timed_pop_filtered()` waits for execution to end and returns with a `GstMessage` which we previously ignored. We asked `gst_bus_timed_pop_filtered()` to return when GStreamer -encountered either an error condition or an EOS, so we need to check +encountered either an error condition or an `EOS`, so we need to check which one happened, and print a message on screen (Your application will probably want to undertake more complex actions). |