From f237d0aff3dfbd2d118dcadeaa34a2b1e7137664 Mon Sep 17 00:00:00 2001
From: Antonio Ospite <ao2@ao2.it>
Date: Wed, 7 Dec 2016 16:26:45 +0100
Subject: [PATCH 1/1] Add a title clip to the timeline
---
vidi-timeline.py | 21 ++++++++++++++++++---
vidi/Timeline.py | 21 +++++++++++++++++++++
2 files changed, 39 insertions(+), 3 deletions(-)
diff --git a/vidi-timeline.py b/vidi-timeline.py
index 17165fc..07639e6 100755
--- a/vidi-timeline.py
+++ b/vidi-timeline.py
@@ -22,15 +22,30 @@ import sys
import mido
import vidi
-# TODO: turn that into a command line option
+# TODO: turn these into command line options
ADD_REST_BACKGROUND = True
+ADD_TITLE = True
+TITLE_TEXT = None
+TITLE_DURATION = 5
+TITLE_CREDITS = "Created with vidi-timeline\nhttps://git.ao2.it/vidi-player.git"
def timeline_from_midi(midi_file, video_font_path):
timeline = vidi.Timeline()
- elapsed_time = 0
- start_time = 0
+ if ADD_TITLE:
+ title = TITLE_TEXT
+ if not title:
+ title = os.path.splitext(os.path.basename(midi_file.filename))[0]
+ title += "\n\n"
+ title += TITLE_CREDITS
+
+ timeline.add_title_clip(title, 0, TITLE_DURATION)
+
+ elapsed_time = start_time = TITLE_DURATION
+ else:
+ elapsed_time = start_time = 0
+
for msg in midi_file:
elapsed_time += msg.time
if vidi.is_note_on(msg) and msg.channel == 0:
diff --git a/vidi/Timeline.py b/vidi/Timeline.py
index 59c891a..da8e83c 100755
--- a/vidi/Timeline.py
+++ b/vidi/Timeline.py
@@ -29,6 +29,10 @@ GES.init()
from .Player import Player
+TITLE_BACKGROUND = 0xFF000000
+TITLE_COLOR = 0xFFFFFFFF
+TITLE_OUTLINE_COLOR = 0x00000000
+TITLE_FONT_DESC = "Georgia, 24"
class Timeline(object):
def __init__(self):
@@ -47,6 +51,23 @@ class Timeline(object):
ges_pipeline.set_timeline(self.timeline)
self.player = Player(ges_pipeline)
+ def add_title_clip(self, text, start_time, duration):
+ title_clip = GES.TitleClip()
+ title_clip.set_start(start_time * Gst.SECOND)
+ title_clip.set_duration(duration * Gst.SECOND)
+ self.layer.add_clip(title_clip)
+
+ # Now that the clip is inserted in the timeline, it has a source which
+ # can be used to set its properties. (comment taken from Pitivi)
+ title_source = title_clip.find_track_element(None, GES.TitleSource)
+ title_source.set_child_property("text", text)
+ title_source.set_child_property("background", TITLE_BACKGROUND)
+ title_source.set_child_property("color", TITLE_COLOR)
+ title_source.set_child_property("outline-color", TITLE_OUTLINE_COLOR)
+ title_source.set_child_property("font-desc", TITLE_FONT_DESC)
+ title_source.set_child_property("halignment", GES.TextVAlign.ABSOLUTE)
+ title_source.set_child_property("valignment", GES.TextHAlign.ABSOLUTE)
+
def add_clip(self, clip_path, start_time, duration):
clip_uri = Gst.filename_to_uri(clip_path)
asset = GES.UriClipAsset.request_sync(clip_uri)
--
2.1.4