Tidy up and increase exception handling in compare_videos
Bug: webrtc:9642
Change-Id: I5c8b252de3b285f81a5437af99d789b5a28ce646
Reviewed-on: https://webrtc-review.googlesource.com/102880
Commit-Queue: Paulina Hensman <phensman@webrtc.org>
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24909}diff --git a/rtc_tools/compare_videos.py b/rtc_tools/compare_videos.py
index ac41ef8..7979043 100755
--- a/rtc_tools/compare_videos.py
+++ b/rtc_tools/compare_videos.py
@@ -136,7 +136,7 @@
return 0
-def _RunFrameAnalyzer(options):
+def _RunFrameAnalyzer(options, yuv_directory=None):
"""Run frame analyzer to compare the videos and print output."""
cmd = [
options.frame_analyzer,
@@ -152,15 +152,17 @@
cmd.append('--chartjson_result_file=%s' % options.chartjson_result_file)
if options.aligned_output_file:
cmd.append('--aligned_output_file=%s' % options.aligned_output_file)
- if options.yuv_directory:
- cmd.append('--yuv_directory=%s' % options.yuv_directory)
+ if yuv_directory:
+ cmd.append('--yuv_directory=%s' % yuv_directory)
frame_analyzer = subprocess.Popen(cmd, stdin=_DevNull(),
stdout=sys.stdout, stderr=sys.stderr)
frame_analyzer.wait()
+ if frame_analyzer.returncode != 0:
+ print 'Failed to run frame analyzer.'
return frame_analyzer.returncode
-def _RunVmaf(options):
+def _RunVmaf(options, yuv_directory):
""" Run VMAF to compare videos and print output.
The provided vmaf directory is assumed to contain a c++ wrapper executable
@@ -174,22 +176,28 @@
'yuv420p',
str(options.yuv_frame_width),
str(options.yuv_frame_height),
- os.path.join(options.yuv_directory, "ref.yuv"),
- os.path.join(options.yuv_directory, "test.yuv"),
+ os.path.join(yuv_directory, "ref.yuv"),
+ os.path.join(yuv_directory, "test.yuv"),
options.vmaf_model,
]
if options.vmaf_phone_model:
cmd.append('--phone-model')
vmaf = subprocess.Popen(cmd, stdin=_DevNull(),
- stdout=subprocess.PIPE, stderr=sys.stderr)
+ stdout=subprocess.PIPE, stderr=sys.stderr)
vmaf.wait()
if vmaf.returncode != 0:
print 'Failed to run VMAF.'
return 1
output = vmaf.stdout.read()
# Extract score from VMAF output.
- score = float(output.split('\n')[2].split()[3])
+ try:
+ score = float(output.split('\n')[2].split()[3])
+ except (ValueError, IndexError):
+ print 'Error in VMAF output (expected "VMAF score = [float]" on line 3):'
+ print output
+ return 1
+
print 'RESULT Vmaf: %s= %f' % (options.label, score)
return 0
@@ -226,25 +234,21 @@
options.test_video, options.stats_file_test) != 0:
return 1
- try:
- # Create a directory to save temporary YUV files for VMAF in frame_analyzer.
- options.yuv_directory = None
- if options.vmaf:
- options.yuv_directory = tempfile.mkdtemp() + '/'
+ if options.vmaf:
+ try:
+ # Directory to save temporary YUV files for VMAF in frame_analyzer.
+ yuv_directory = tempfile.mkdtemp()
- # Run frame_analyzer to compare the videos and print output.
- if _RunFrameAnalyzer(options) != 0:
- print 'Failed to run frame analyzer.'
- return 1
+ # Run frame analyzer to compare the videos and print output.
+ if _RunFrameAnalyzer(options, yuv_directory=yuv_directory) != 0:
+ return 1
- # Run VMAF for further video comparison and print output.
- if options.vmaf:
- return _RunVmaf(options)
-
- finally:
- if options.yuv_directory:
- shutil.rmtree(options.yuv_directory)
-
+ # Run VMAF for further video comparison and print output.
+ return _RunVmaf(options, yuv_directory)
+ finally:
+ shutil.rmtree(yuv_directory)
+ else:
+ return _RunFrameAnalyzer(options)
return 0