diff options
Diffstat (limited to 'src/components')
| -rw-r--r-- | src/components/video.py | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/src/components/video.py b/src/components/video.py index 8aa1420..b3b6a59 100644 --- a/src/components/video.py +++ b/src/components/video.py @@ -8,7 +8,7 @@ from queue import PriorityQueue from component import Component, BadComponentInit from frame import BlankFrame -from toolkit import openPipe +from toolkit import openPipe, checkOutput class Video: @@ -155,14 +155,29 @@ class Component(Component): def properties(self): props = [] - if self.useAudio: - props.append('audio') if not self.videoPath or self.badVideo \ or not os.path.exists(self.videoPath): - props.append('error') + return ['error'] + + if self.useAudio: + props.append('audio') + # test if an audio stream really exists + audioTestCommand = [ + self.core.FFMPEG_BIN, + '-i', self.videoPath, + '-vn', '-f', 'null', '-' + ] + try: + checkOutput(audioTestCommand, stderr=subprocess.DEVNULL) + except subprocess.CalledProcessError: + self.badAudio = True + return ['error'] + return props def error(self): + if hasattr(self, 'badAudio'): + return "Could not identify an audio stream in this video." if not self.videoPath: return "There is no video selected." if not os.path.exists(self.videoPath): @@ -180,7 +195,7 @@ class Component(Component): self.blankFrame_ = BlankFrame(width, height) self.updateChunksize(width, height) self.video = Video( - ffmpeg=self.parent.core.FFMPEG_BIN, videoPath=self.videoPath, + ffmpeg=self.core.FFMPEG_BIN, videoPath=self.videoPath, width=width, height=height, chunkSize=self.chunkSize, frameRate=int(self.settings.value("outputFrameRate")), parent=self.parent, loopVideo=self.loopVideo, |