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🎥 Command line media player
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Python
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167#!/usr/bin/env python3from pyqtgraph.Qt import QtGui, QtCoreimport pyqtgraph as pgimport sysimport re
filename = sys.argv[1]
events = ".*"if len(sys.argv) > 2: events = sys.argv[2]event_regex = re.compile(events)
"""This script is meant to display stats written by mpv --dump-stats=filename.In general, each line in that file is an event of the form:
<timestamp in microseconds> <text> '#' <comment>
e.g.:
10474959 start flip #cplayer
<text> is what MP_STATS(log, "...") writes. The rest is added by msg.c.
Currently, the following event types are supported:
'signal' <name> singular event 'start' <name> start of the named event 'end' <name> end of the named event 'value' <float> <name> a normal value (as opposed to event) 'event-timed' <ts> <name> singular event at the given timestamp 'value-timed' <ts> <float> <name> a value for an event at the given timestamp 'range-timed' <ts1> <ts2> <name> like start/end, but explicit times <name> singular event (same as 'signal')
"""
class G: events = {} start = None markers = ["o", "s", "t", "d"] curveno = {}
def find_marker(): if len(G.markers) == 0: return "o" m = G.markers[0] G.markers = G.markers[1:] return m
class Event: pass
def get_event(event, evtype): if event not in G.events: e = Event() e.name = event e.vals = [] e.type = evtype e.marker = "o" if e.type == "event-signal": e.marker = find_marker() if not event_regex.match(e.name): return e G.events[event] = e return G.events[event]
colors = [(0.0, 0.5, 0.0), (0.0, 0.0, 1.0), (0.0, 0.0, 0.0), (1.0, 0.0, 0.0), (0.75, 0.75, 0), (0.0, 0.75, 0.75), (0.75, 0, 0.75)]def mkColor(t): return pg.mkColor(int(t[0] * 255), int(t[1] * 255), int(t[2] * 255))
SCALE = 1e6 # microseconds to seconds
for line in [line.split("#")[0].strip() for line in open(filename, "r")]: line = line.strip() if not line: continue ts, event = line.split(" ", 1) ts = int(ts) / SCALE if G.start is None: G.start = ts ts = ts - G.start if event.startswith("start "): e = get_event(event[6:], "event") e.vals.append((ts, 0)) e.vals.append((ts, 1)) elif event.startswith("end "): e = get_event(event[4:], "event") e.vals.append((ts, 1)) e.vals.append((ts, 0)) elif event.startswith("value "): _, val, name = event.split(" ", 2) val = float(val) e = get_event(name, "value") e.vals.append((ts, val)) elif event.startswith("event-timed "): _, val, name = event.split(" ", 2) val = int(val) / SCALE - G.start e = get_event(name, "event-signal") e.vals.append((val, 1)) elif event.startswith("range-timed "): _, ts1, ts2, name = event.split(" ", 3) ts1 = int(ts1) / SCALE - G.start ts2 = int(ts2) / SCALE - G.start e = get_event(name, "event") e.vals.append((ts1, 0)) e.vals.append((ts1, 1)) e.vals.append((ts2, 1)) e.vals.append((ts2, 0)) elif event.startswith("value-timed "): _, tsval, val, name = event.split(" ", 3) tsval = int(tsval) / SCALE - G.start val = float(val) e = get_event(name, "value") e.vals.append((tsval, val)) elif event.startswith("signal "): name = event.split(" ", 2)[1] e = get_event(name, "event-signal") e.vals.append((ts, 1)) else: e = get_event(event, "event-signal") e.vals.append((ts, 1))
# deterministically sort them; make sure the legend is sorted tooG.sevents = list(G.events.values())G.sevents.sort(key=lambda x: x.name)hasval = Falsefor e, index in zip(G.sevents, range(len(G.sevents))): m = len(G.sevents) if e.type == "value": hasval = True else: e.vals = [(x, y * (m - index) / m) for (x, y) in e.vals]
pg.setConfigOption('background', 'w')pg.setConfigOption('foreground', 'k')app = QtGui.QApplication([])win = pg.GraphicsWindow()#win.resize(1500, 900)
ax = [None, None]plots = 2 if hasval else 1ax[0] = win.addPlot()if hasval: win.nextRow() ax[1] = win.addPlot() ax[1].setXLink(ax[0])for cur in ax: if cur is not None: cur.addLegend(offset = (-1, 1))for e in G.sevents: cur = ax[1 if e.type == "value" else 0] if not cur in G.curveno: G.curveno[cur] = 0 args = {'name': e.name,'antialias':True} color = mkColor(colors[G.curveno[cur] % len(colors)]) if e.type == "event-signal": args['symbol'] = e.marker args['symbolBrush'] = pg.mkBrush(color, width=0) else: args['pen'] = pg.mkPen(color, width=0) G.curveno[cur] += 1 n = cur.plot([x for x,y in e.vals], [y for x,y in e.vals], **args)
QtGui.QApplication.instance().exec_()