diff options
Diffstat (limited to 'gst-libs')
| -rw-r--r-- | gst-libs/gst/media-info/README | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/gst-libs/gst/media-info/README b/gst-libs/gst/media-info/README new file mode 100644 index 00000000..f17f570f --- /dev/null +++ b/gst-libs/gst/media-info/README @@ -0,0 +1,30 @@ +* media-info is a library to collect metadata and streaminfo from media + files + +* the current implementation is idler-based. + +* you create a new media_info object +* you set the string name of a source element to use using g_object_set or + gst_media_info_set_source +* you declare you'll read a given file by using gst_media_info_read_with_idler +* you loop gst_media_info_read_idler (info, &stream) as long as it returns TRUE + and as long as stream is still NULL + + +* INTERNALS: + - instance_init sets up the media info reader, its elements, and connects + the deep_notify callback + - read_with_idler resets the media info reader object, + and sets location and flags + + - read_idler runs through a state machine: + NULL - TYPEFIND - STREAM - METADATA - STREAMINFO - FORMAT + + - NULL: just returns find_type_pre, which moves state to TYPEFIND + - TYPEFIND: + - iterates as long as it can until it has priv->type + - find_type_post + - call gmi_set_mime which creates a pipeline to decode stuff + - move to STREAM + + - STREAM |