dash-player/usage-advanced.py
2022-12-01 23:28:27 -05:00

312 lines
11 KiB
Python

from textwrap import dedent
from dash import Dash, dcc, html, Input, Output, State, ALL, ctx, no_update
import dash_player
app = Dash(__name__)
server = app.server
app.scripts.config.serve_locally = True
urls = {
"mp4": "https://media.w3.org/2010/05/bunny/trailer.mp4",
"mp3": " https://media.w3.org/2010/07/bunny/04-Death_Becomes_Fur.mp3",
"webm": "https://media.w3.org/2010/05/sintel/trailer.webm",
"ogv": "http://media.w3.org/2010/05/bunny/movie.ogv",
"Youtube": "https://www.youtube.com/watch?v=sea2K4AuPOk",
}
app.layout = html.Div(
[
html.Div(html.H1("dash-player Advanced Usage")),
html.Div(
[
html.Div(
style={"width": "45%", "padding": "10px"},
children=[
dash_player.DashPlayer(
id="video-player",
url="https://media.w3.org/2010/05/sintel/trailer.mp4",
controls=True,
width="100%",
height="250px",
),
dcc.Input(
id="input-url",
value="https://media.w3.org/2010/05/sintel/trailer.mp4",
style={"width": "calc(100% - 110px)"},
),
html.Button(
"Change URL",
id="button-update-url",
style={"width": "100px", "margin": "10px 0px"},
),
html.Div(
[
html.Div(
[
dcc.Markdown("### Player Info"),
html.Div(
id="div-current-time",
style={"margin": "10px 0px"},
),
html.Div(
id="div-seconds-loaded",
style={"margin": "10px 0px"},
),
html.Div(
id="div-duration",
style={"margin": "10px 0px"},
),
],
id="div-video-info",
style={"width": "60%"},
),
html.Div(
[
dcc.Markdown("### Video Examples"),
html.Div(
[
html.Button(
i,
id={
"type": "url-btn",
"value": urls[i],
},
)
for i in urls
],
style={
"display": "flex",
"flexDirection": "column",
},
),
],
),
],
style={
"display": "flex",
"flexDirection": "row",
"padding": "10px",
},
),
],
),
html.Div(
style={"width": "45%", "padding": "10px"},
children=[
html.Div(
[
dcc.Checklist(
id="radio-bool-props",
options=[
{"label": val.capitalize(), "value": val}
for val in [
"playing",
"loop",
"controls",
"muted",
]
],
value=["controls"],
),
html.Div(
[
dcc.Input(
id="seekto-input",
type="number",
placeholder="seekTo value",
),
html.Button("seekTo", id="seekto-btn"),
],
),
],
style={
"display": "flex",
"flexDirection": "row",
"justifyContent": "space-between",
"marginBottom": "5px",
},
),
html.P("Volume:", style={"marginTop": "30px"}),
dcc.Slider(
id="slider-volume",
min=0,
max=1,
step=0.05,
value=None,
updatemode="drag",
marks={0: "0%", 1: "100%"},
),
html.P("Playback Rate:", style={"marginTop": "25px"}),
dcc.Slider(
id="slider-playback-rate",
min=0,
max=4,
step=None,
updatemode="drag",
marks={
i: str(i) + "x"
for i in [0, 0.25, 0.5, 0.75, 1, 2, 3, 4]
},
value=1,
),
html.P(
"Update Interval for Current Time:",
style={"marginTop": "30px"},
),
dcc.Slider(
id="slider-intervalCurrentTime",
min=40,
max=1000,
step=None,
updatemode="drag",
marks={i: str(i) for i in [40, 100, 200, 500, 1000]},
value=100,
),
html.P(
"Update Interval for Seconds Loaded:",
style={"marginTop": "30px"},
),
dcc.Slider(
id="slider-intervalSecondsLoaded",
min=200,
max=2000,
step=None,
updatemode="drag",
marks={i: str(i) for i in [200, 500, 750, 1000, 2000]},
value=500,
),
html.P(
"Update Interval for Duration:",
style={"marginTop": "30px"},
),
dcc.Slider(
id="slider-intervalDuration",
min=200,
max=2000,
step=None,
updatemode="drag",
marks={i: str(i) for i in [200, 500, 750, 1000, 2000]},
value=500,
),
],
),
],
style={
"display": "flex",
"flexDirection": "row",
"justifyContent": "space-between",
},
),
],
style={"margin": "20px"},
)
@app.callback(
Output("video-player", "url"),
Output("input-url", "value"),
Input("button-update-url", "n_clicks"),
Input({"type": "url-btn", "value": ALL}, "n_clicks"),
State("input-url", "value"),
prevent_initial_call=True,
)
def update_url(n_clicks, url_n_clicks, value):
if ctx.triggered_id == "button-update-url":
return value, no_update
return ctx.triggered_id["value"], ctx.triggered_id["value"]
@app.callback(Output("video-player", "playing"), Input("radio-bool-props", "value"))
def update_prop_playing(values):
return "playing" in values
@app.callback(Output("video-player", "loop"), Input("radio-bool-props", "value"))
def update_prop_loop(values):
return "loop" in values
@app.callback(Output("video-player", "controls"), Input("radio-bool-props", "value"))
def update_prop_controls(values):
return "controls" in values
@app.callback(Output("video-player", "muted"), Input("radio-bool-props", "value"))
def update_prop_muted(values):
return "muted" in values
@app.callback(Output("video-player", "volume"), Input("slider-volume", "value"))
def update_volume(value):
return value
@app.callback(
Output("video-player", "playbackRate"), Input("slider-playback-rate", "value")
)
def update_playbackRate(value):
return value
# Instance Methods
@app.callback(
Output("div-current-time", "children"), Input("video-player", "currentTime")
)
def update_time(currentTime):
return f"Current Time: {currentTime}"
@app.callback(
Output("div-seconds-loaded", "children"),
Input("video-player", "secondsLoaded"),
)
def update_methods(secondsLoaded):
return f"Second Loaded: {secondsLoaded}"
@app.callback(
Output("div-duration", "children"),
Input("video-player", "duration"),
)
def update_methods(duration):
return f"Duration: {duration}"
@app.callback(
Output("video-player", "intervalCurrentTime"),
Input("slider-intervalCurrentTime", "value"),
)
def update_intervalCurrentTime(value):
return value
@app.callback(
Output("video-player", "intervalSecondsLoaded"),
Input("slider-intervalSecondsLoaded", "value"),
)
def update_intervalSecondsLoaded(value):
return value
@app.callback(
Output("video-player", "intervalDuration"),
Input("slider-intervalDuration", "value"),
)
def update_intervalDuration(value):
return value
@app.callback(
Output("video-player", "seekTo"),
Input("seekto-btn", "n_clicks"),
State("seekto-input", "value"),
)
def update_prop_seekTo(n_clicks, seekto):
return seekto
if __name__ == "__main__":
app.run(debug=True)