def get_frame_vectors(file):
crop = get_crop(file)
sigfile = basename(file) + ".xml"
folder = dirname(file)
if crop:
vf = "{},signature=format=xml:filename={}".format(crop, sigfile)
else:
vf = "signature=format=xml:filename={}".format(sigfile)
with cd(folder):
cmd = [ffmpeg.exe_path(), "-i", file, "-vf", vf, "-f", "null", "-"]
subprocess.run(cmd, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
tree = etree.parse(sigfile)
root = tree.getroot()
os.remove(sigfile)
frames = []
frame_els = root.xpath("//a:FrameSignature", namespaces=NSMAP)
for frame_el in frame_els:
frames.append(tuple(int(t) for t in frame_el.text.split()))
return tuple(frames)
def test_ffmpeg_exists():
assert os.path.exists(ffmpeg.exe_path())
def test_ffmpeg_executable():
assert os.access(ffmpeg.exe_path(), os.X_OK)
def test_exe_path():
assert "ffmpeg" in ffmpeg.exe_path()