def extract_frames((vid_file, time, label, vid_idx, im_dir, prev_free_time)):
examples = []
with ut.TmpDir() as tmp_dir:
free_dur = 0.1
ut.sys_check('ffmpeg -loglevel warning -ss %f -i "%s" -vf scale=%d:%d -t %f -r %d "%s/%%07d.png"' % \
(prev_free_time, vid_file, full_dim, full_dim, free_dur, sample_fps, tmp_dir))
#fname = sorted(ut.glob(pj(tmp_dir, '*.png')))[0]
assert len(ut.glob(pj(tmp_dir,
'*.png'))), 'no frames for prev_free_time'
fname = random.choice(sorted(ut.glob(pj(tmp_dir, '*.png'))))
prev_file = pj(im_dir, 'prev_%s_%05d_%d.png' % (vid_idx, 0, label))
ut.sys_check('cp %s %s' % (fname, prev_file))
with ut.TmpDir() as tmp_dir:
# ut.sys_check('ffmpeg -i "%s" -vf scale=%d:%d -ss %f -t %f -r %d "%s/%%07d.png"' % \
# (vid_file, full_dim, full_dim, time,
# sample_dur_secs, sample_fps, tmp_dir))
ut.sys_check('ffmpeg -loglevel warning -ss %f -i "%s" -vf scale=%d:%d -t %f -r %d "%s/%%07d.png"' % \
(time, vid_file, full_dim, full_dim,
sample_dur_secs, sample_fps, tmp_dir))
for frame_idx, fname in enumerate(sorted(ut.glob(pj(tmp_dir,
'*.png')))):
im_file = pj(im_dir,
'%s_%05d_%d.png' % (vid_idx, frame_idx, label))
ut.sys_check('cp %s %s' % (fname, im_file))
examples.append((im_file, prev_file, label, vid_file))
return examples
def run(vid_file,
start_time,
dur,
pr,
gpu,
buf=0.05,
mask=None,
arg=None,
net=None):
print pr
dur = dur + buf
with ut.TmpDir() as vid_path:
height_s = '-vf "scale=-2:\'min(%d,ih)\'"' % arg.max_full_height if arg.max_full_height > 0 else ''
ut.sys_check(
ut.frm(
'ffmpeg -loglevel error -ss %(start_time)s -i "%(vid_file)s" -safe 0 '
'-t %(dur)s -r %(pr.fps)s -vf scale=256:256 "%(vid_path)s/small_%%04d.png"'
))
ut.sys_check(
ut.frm(
'ffmpeg -loglevel error -ss %(start_time)s -i "%(vid_file)s" -safe 0 '
'-t %(dur)s -r %(pr.fps)s %(height_s)s "%(vid_path)s/full_%%04d.png"'
))
ut.sys_check(
ut.frm(
'ffmpeg -loglevel error -ss %(start_time)s -i "%(vid_file)s" -safe 0 '
'-t %(dur)s -ar %(pr.samp_sr)s -ac 2 "%(vid_path)s/sound.wav"')
)
if arg.fullres:
fulls = map(
ig.load,
sorted(ut.glob(vid_path, 'full_*.png'))[:pr.sampled_frames])
fulls = np.array(fulls)
snd = sound.load_sound(pj(vid_path, 'sound.wav'))
samples_orig = snd.normalized().samples
samples_orig = samples_orig[:pr.num_samples]
samples_src = samples_orig.copy()
if samples_src.shape[0] < pr.num_samples:
return None
ims = map(ig.load, sorted(ut.glob(vid_path, 'small_*.png')))
ims = np.array(ims)
d = 224
y = x = ims.shape[1] / 2 - d / 2
ims = ims[:, y:y + d, x:x + d]
ims = ims[:pr.sampled_frames]
if mask == 'l':
ims[:, :, :ims.shape[2] / 2] = 128
if arg.fullres:
fulls[:, :, :fulls.shape[2] / 2] = 128
elif mask == 'r':
ims[:, :, ims.shape[2] / 2:] = 128
if arg.fullres:
fulls[:, :, fulls.shape[2] / 2:] = 128
elif mask is None:
pass
else:
raise RuntimeError()
samples_src = mu.normalize_rms_np(samples_src[None], pr.input_rms)[0]
net.init()
ret = net.predict(ims[None], samples_src[None])
samples_pred_fg = ret['samples_pred_fg'][0][:, None]
samples_pred_bg = ret['samples_pred_bg'][0][:, None]
spec_pred_fg = ret['spec_pred_fg'][0]
spec_pred_bg = ret['spec_pred_bg'][0]
print spec_pred_bg.shape
spec_mix = ret['spec_mix'][0]
if arg.cam:
cam, vis = find_cam(fulls, samples_orig, arg)
else:
if arg.fullres:
vis = fulls
else:
vis = ims
return dict(ims=vis,
samples_pred_fg=samples_pred_fg,
samples_pred_bg=samples_pred_bg,
samples_mix=ret['samples_mix'][0],
samples_src=samples_src,
spec_pred_fg=spec_pred_fg,
spec_pred_bg=spec_pred_bg,
spec_mix=spec_mix)