我正在使用 python(3.6) 和 Django(2.0) 开发一个项目,如果它是任何其他格式,我正在将视频转换为 mp4。
这是我的代码:
来自views.py:
def generate_thumbnail(filename, thumb_name):
print('func called')
print(filename)
video_input_path = os.path.join(filename)
img_output_path = os.path.join(thumb_name)
subprocess.call(['ffmpeg', '-i', video_input_path, '-ss', '00:00:00.000', 'vframes', '1', img_output_path])
def convert_to_mp4(video_name, only_name):
os.popen(
"ffmpeg -i '{input}' -ac 2 -b:v 2000k -c:a aac -c:v libx264 -b:a 160k -vprofile high -bf 0 -strict experimental -f mp4 '{output}.mp4'".format(
input=video_name, output=only_name))
return True
def perform_upload(video, thumbnail):
print('vdieo name is: {}'.format(video))
servise = discovery.build('storage', 'v1', credentials=credentials)
bucket_name = 'test_bucket004'
print('Uploading the video...')
media = MediaFileUpload(video, chunksize=4149304, mimetype='video/mp4',
resumable=True)
req = servise.objects().insert(
bucket=bucket_name,
name=str(video),
media_body=media,
body={"cacheControl": "public,max-age=31536000"},
predefinedAcl='publicRead'
)
resp = None
while resp is None:
status, resp = req.next_chunk()
print(resp)
video_url = 'http://storage.googleapis.com/' + bucket_name + '/' + str(video)
print('Uploading your thumbnail...')
media = MediaFileUpload(thumbnail, chunksize=4149304, mimetype='image/jpeg',
resumable=True)
req = servise.objects().insert(
bucket=bucket_name,
name=str(thumbnail),
media_body=media,
body={"cacheControl": "public,max-age=31536000"},
predefinedAcl='publicRead'
)
resp = None
while resp is None:
status, resp = req.next_chunk()
print(resp)
thumb_url = 'https://storage.googleapis.com/' + bucket_name + '/' + str(thumbnail)
return video_url, thumb_url
class VideoConverter(generics.ListCreateAPIView):
def get(self, request, *args, **kwargs):
return HttpResponse('Get request', status=200)
def post(self, request, *args, **kwargs):
serializer = VideoConverterSerializer(data=self.request.data)
validation = serializer.is_valid()
print(serializer.errors)
if validation is True:
url = request.POST.get('video_url')
filename = url.split('/')
filename = filename[-1]
print(filename)
ext = filename.split('.')
print(ext[-1])
only_name = ext[0]
urllib.request.urlretrieve(url, filename)
generate_thumbnail(filename, only_name + '_thumbnail.jpg')
if ext == 'mp4':
videourl, thumb_url = perform_upload(filename, only_name + '_thumbnail.jpg')
else:
conversion = convert_to_mp4(filename, only_name)
if conversion is True:
videourl, thumb_url = perform_upload(only_name + '.mp4', only_name + '_thumbnail.jpg')
return HttpResponse('Video url is: {}\n \nThumbnail url is: {}'.format(videourl, thumb_url))
else:
return HttpResponse('Not a valid request')
但是,当我将 Mp4 格式的视频传递给它时,它会在 IDE 控制台中返回一个错误,如下所示:
ffmpeg 版本 4.0.2 版权所有 (c) 2000-2018 FFmpeg 开发人员使用 Apple LLVM 版本 10.0.0 (clang-1000.10.43.1) 配置: --prefix=/usr/local/Cellar/ffmpeg/4.0.2 --启用共享 --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable -libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma libavutil 56. 14.100 / 56. 14.100 libavcodec 58. 18.100 / 58. 18.100 libavformat 58. 12.100 / 58。 12.100 libavdevice 58. 3.100 / 58. 3.100 libavfilter 7. 16.100 / 7. 16.100 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 1.100 / 5. 1.100 libswresample 3. 1.100 / 3. 1.100 / libpostproc 5.5 55. 1.100 输入#0, mov,mp4,m4a,3gp,3g2,mj2,来自 'PHP_GCS.mp4':元数据:major_brand:mp42 minor_version:1 compatible_brands:mp41mp42isom creation_time:2018-08-03T13:08:04.000000Z 持续时间:00:01:21.40,开始:0.000000,比特率: 1584 kb/s 流 #0:0(und):视频:h264(主)(avc1 / 0x31637661),yuv420p,1918x1078 [SAR 1:1 DAR 137:77],1581 kb/s,30 fps,30 tbr, 600 tbn,1200 tbc(默认) 元数据:creation_time : 2018-08-03T13:08:04.000000Z handler_name : Core Media Videoyuv420p, 1918x1078 [SAR 1:1 DAR 137:77], 1581 kb/s, 30 fps, 30 tbr, 600 tbn, 1200 tbc (默认) 元数据: creation_time : 2018-08-03T13:08:04.000000Z handler_name : Core媒体视频yuv420p, 1918x1078 [SAR 1:1 DAR 137:77], 1581 kb/s, 30 fps, 30 tbr, 600 tbn, 1200 tbc (默认) 元数据: creation_time : 2018-08-03T13:08:04.000000Z handler_name : Core媒体视频
文件“PHP_GCS.mp4”已经存在。覆盖?[是/否]
并在这里停止执行,直到我按下回车按钮。我真的很困惑为什么会这样,因为当视频已经是 mp4 时,我没有使用ffmpeg
,而只是用于生成缩略图。
这里有什么问题?
提前致谢!