Rafostar
commented
2 months ago Example code to test (this time in Python :smile:):
#!/usr/bin/env python3
import gi
gi.require_version('Adw', '1')
gi.require_version('Clapper', '0.0')
gi.require_version('ClapperGtk', '0.0')
gi.require_version('GLib', '2.0')
gi.require_version('Gtk', '4.0')
from gi.repository import Adw, Clapper, ClapperGtk, GLib, Gtk
import shutil
Clapper.init(None)
download_dir = GLib.build_filenamev([GLib.get_user_cache_dir(), "example_download_dir", None])
print('Using ceche directory: {0}'.format(download_dir))
def on_download_complete(player, item, location):
# Media downloaded. Data from this file is still used for current playback (including seeking).
print('Download complete: {0} => {1}'.format(item.props.uri, location))
def on_activate(app):
win = Gtk.ApplicationWindow(application=app, default_width=640, default_height=396)
video = ClapperGtk.Video()
controls = ClapperGtk.SimpleControls(fullscreenable=False)
# Enable local storage caching and monitor it
video.props.player.set_download_dir(download_dir)
video.props.player.set_download_enabled(True)
video.props.player.connect('download-complete', on_download_complete)
# Configure playback
video.props.player.props.queue.set_progression_mode(Clapper.QueueProgressionMode.CAROUSEL)
video.props.player.set_autoplay(True)
# Create and add media for playback
item_1 = Clapper.MediaItem(uri='http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4')
item_2 = Clapper.MediaItem(uri='http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4')
video.props.player.props.queue.add_item(item_1)
video.props.player.props.queue.add_item(item_2)
# Assemble window
video.add_fading_overlay(controls)
win.set_child(video)
win.present()
# Create a new application
app = Adw.Application(application_id='com.example.ClapperDownloadCache')
app.connect('activate', on_activate)
# Run the application
app.run(None)
# Finally app should cleanup before exit. Possibly moving data to
# another dir if it wants to use it on next run and deleting what's
# left (so any unfinished downloads will also be removed).
print('Cleanup')
shutil.rmtree(download_dir)GST_PLUGIN_FEATURE_RANK=vah264dec:300 python3 ./test.py
The aim here is to stream an online video/audio while also at the same time download/cache it to disk (excluding adaptive content).
After download is complete, further playback and seeking are done using the locally cached file. This functionality uses GStreamer "downloadbuffer" element.
Player will emit a signal with a local download location after it completes, so application will know where downloaded file for media item is stored in case it wants to reuse it in the future.
It is up to application to set download dir and later manage downloaded content in it, removing files its not going to use on next application run and any incomplete downloads.