def run():
try:
caps = get_stdout(cmd_pattern % v4l_get_current_device(),
shell=True).split('caps = ')[1].strip().replace(
'\\', '')
msg = "Default caps are: %s" % caps
return (True, msg)
except Exception as e:
print(e)
return (False, "Autonegociation failed")
def _run():
try:
data = get_stdout(cmd_pattern %v4l_get_current_device(), shell=True).strip().split('\n')
last_bufsize = None
for line in data:
bufsize = line.split('akesink0:sink) (')[1].split(' bytes, dts')[0]
if last_bufsize is None:
last_bufsize = bufsize
elif bufsize != last_bufsize:
return (False, "Buffer size varied")
return (True, "All buffers had the same size")
except Exception as e:
print(e)
return (False, "Error (%s)" %e)
def cpu():
if is_pc():
cpu = get_stdout('cat /proc/cpuinfo | grep "model name" | tail -n 1',
shell=True).split(': ')[1].strip()
if "Intel" in cpu:
intel_gpu = get_intel_gen()
if intel_gpu:
return "%s %s" % (cpu, intel_gpu)
else:
nvidia_gpu = get_nvidia_gpu()
return "%s %s" % (cpu, nvidia_gpu)
else:
if is_pi():
return get_pi_model()
else:
return get_arm_hw()
def get_gst_version():
return process.get_stdout('gst-launch-1.0 --gst-version').strip().split(
' ')[-1]
def get_nvidia_gpu():
return get_stdout(
'lspci | grep VGA',
shell=True).strip().split('VGA compatible controller: ')[1]
def gpu():
if is_pc():
return get_stdout('lspci | grep -E "VGA|3D"',
shell=True).split('controller: ')[1].strip()
else:
return get_arm_hw()
def get_intel_gen():
try:
return get_stdout('vainfo | grep "Driver version"',
shell=True).split('driver for ')[1].split(' - ')[0]
except Exception:
return ''
def get_arm_hw():
try:
return get_stdout('grep Hardware /proc/cpuinfo',
shell=True).split(': ')[1].strip()
except Exception:
return ''
def get_machine():
#x86_64
#'armv6l'
#'armv7l'
return get_stdout('uname -m')
def get_pi_model():
rev = get_stdout('grep Revision /proc/cpuinfo',
shell=True).split(': ')[1].strip()
return "RaspberryPi %s" % RPI_REV[rev]
def get_free_space_bytes(path="/tmp"):
cmd = "/bin/df %s --output=avail | tail -n 1" % path
return int(get_stdout(cmd, shell=True)) * 1024
def get_free_gpu_mem_rpi_bytes():
cmd = "sudo LD_LIBRARY_PATH=/opt/vc/lib /opt/vc/bin/vcdbg reloc | grep 'free mem' | cut -f 1 | cut -d M -f 1"
mem_mb = int(get_stdout(cmd, shell=True)) * 1024 * 1024
return mem_mb
def check_path_is_tmpfs(path='/tmp'):
d = get_stdout('df %s | tail -n 1' % path, shell=True)
return d.startswith('tmpfs')
