python kivy添加背景视频mp4
可以在kivy中播放视频（mp4）作为背景吗？我正在使用下面的代码，但没有加载视频python kivy添加背景视频mp4,python,linux,kivy,Python,Linux,Kivy,可以在kivy中播放视频（mp4）作为背景吗？我正在使用下面的代码，但没有加载视频 __author__ = 'kshk' import kivy kivy.require('1.8.0') from kivy.app import App from kivy.uix.label import Label from kivy.uix.gridlayout import GridLayout from kivy.uix.textinput import TextInput from kivy.
__author__ = 'kshk'
import kivy
kivy.require('1.8.0')
from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.gridlayout import GridLayout
from kivy.uix.textinput import TextInput
from kivy.uix.video import Video
class Dashboard(GridLayout):
def __init__(self, **kwargs):
super(Dashboard,self).__init__(**kwargs)
self.cols = 2
self.add_widget(Label(text="Login"))
self.username = TextInput(multiline=False)
self.add_widget(self.username)
self.add_widget(Label(text="Password"))
self.password = TextInput(password=True,multiline=False)
self.add_widget(self.password)
self.video = Video(source="/tmpt/driver.mp4")
self.add_widget(self.video)
class MyApp(App):
def build(self):
return Dashboard()
if __name__ == '__main__':
MyApp().run()
/usr/bin/python /home/kshk/PycharmProjects/KSHK-PYQT1/main.py
[INFO ] Kivy v1.8.0
[INFO ] [Logger ] Record log in /home/kshk/.kivy/logs/kivy_14-07-13_58.txt
[INFO ] [Factory ] 157 symbols loaded
[DEBUG ] [Cache ] register <kv.lang> with limit=None, timeout=Nones
[DEBUG ] [Cache ] register <kv.image> with limit=None, timeout=60s
[DEBUG ] [Cache ] register <kv.atlas> with limit=None, timeout=Nones
[INFO ] [Image ] Providers: img_tex, img_dds, img_pygame, img_pil, img_gif
[DEBUG ] [Cache ] register <kv.texture> with limit=1000, timeout=60s
[DEBUG ] [Cache ] register <kv.shader> with limit=1000, timeout=3600s
[INFO ] [Text ] Provider: pygame
[DEBUG ] [Cache ] register <kv.loader> with limit=500, timeout=60s
[INFO ] [Loader ] using a thread pool of 2 workers
[DEBUG ] [Cache ] register <textinput.label> with limit=None, timeout=60.0s
[DEBUG ] [Cache ] register <textinput.width> with limit=None, timeout=60.0s
[DEBUG ] [Video ] Ignored <pygst> (import error)
[DEBUG ] [Video ] Ignored <ffmpeg> (import error)
[DEBUG ] [Video ] Ignored <pyglet> (import error)
[INFO ] [Video ] Provider: null(['video_pygst', 'video_ffmpeg', 'video_pyglet'] ignored)
[DEBUG ] [App ] Loading kv </home/kshk/PycharmProjects/KSHK-PYQT1/my.kv>
[DEBUG ] [App ] kv </home/kshk/PycharmProjects/KSHK-PYQT1/my.kv> not found
[DEBUG ] [Window ] Ignored <egl_rpi> (import error)
[INFO ] [Window ] Provider: pygame(['window_egl_rpi'] ignored)
libpng warning: iCCP: known incorrect sRGB profile
[WARNING ] [WinPygame ] Video: failed (multisamples=2)
[WARNING ] [WinPygame ] trying without antialiasing
[DEBUG ] [Window ] Display driver x11
[DEBUG ] [Window ] Actual window size: 800x600
[DEBUG ] [Window ] Actual color bits r8 g8 b8 a0
[DEBUG ] [Window ] Actual depth bits: 24
[DEBUG ] [Window ] Actual stencil bits: 8
[DEBUG ] [Window ] Actual multisampling samples: 0
[INFO ] [GL ] OpenGL version <2.1 Mesa 10.1.5>
[INFO ] [GL ] OpenGL vendor <VMware, Inc.>
[INFO ] [GL ] OpenGL renderer <Gallium 0.4 on llvmpipe (LLVM 3.4, 256 bits)>
[INFO ] [GL ] OpenGL parsed version: 2, 1
[INFO ] [GL ] Shading version <1.30>
[INFO ] [GL ] Texture max size <8192>
[INFO ] [GL ] Texture max units <16>
[DEBUG ] [Shader ] Fragment compiled successfully
[DEBUG ] [Shader ] Vertex compiled successfully
[DEBUG ] [ImagePygame ] Load </usr/lib/python2.7/site-packages/kivy/data/glsl/default.png>
[INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
[DEBUG ] [Atlas ] Load </usr/lib/python2.7/site-packages/kivy/data/../data/images/defaulttheme.atlas>
[DEBUG ] [Atlas ] Need to load 1 images
[DEBUG ] [Atlas ] Load </usr/lib/python2.7/site-packages/kivy/data/../data/images/defaulttheme-0.png>
[DEBUG ] [ImagePygame ] Load </usr/lib/python2.7/site-packages/kivy/data/../data/images/defaulttheme-0.png>
[INFO ] [OSC ] using <multiprocessing> for socket
[DEBUG ] [Base ] Create provider from mouse
[DEBUG ] [Base ] Create provider from probesysfs
[DEBUG ] [ProbeSysfs ] using probsysfs!
[INFO ] [Base ] Start application main loop
[INFO ] [GL ] NPOT texture support is available
[INFO ] [Base ] Leaving application in progress...
/usr/bin/python /home/kshk/PycharmProjects/KSHK-PYQT1/main.py
[INFO ] Kivy v1.8.0
[INFO ] [Logger ] Record log in /home/kshk/.kivy/logs/kivy_14-07-13_58.txt
[INFO ] [Factory ] 157 symbols loaded
[DEBUG ] [Cache ] register <kv.lang> with limit=None, timeout=Nones
[DEBUG ] [Cache ] register <kv.image> with limit=None, timeout=60s
[DEBUG ] [Cache ] register <kv.atlas> with limit=None, timeout=Nones
[INFO ] [Image ] Providers: img_tex, img_dds, img_pygame, img_pil, img_gif
[DEBUG ] [Cache ] register <kv.texture> with limit=1000, timeout=60s
[DEBUG ] [Cache ] register <kv.shader> with limit=1000, timeout=3600s
[INFO ] [Text ] Provider: pygame
[DEBUG ] [Cache ] register <kv.loader> with limit=500, timeout=60s
[INFO ] [Loader ] using a thread pool of 2 workers
[DEBUG ] [Cache ] register <textinput.label> with limit=None, timeout=60.0s
[DEBUG ] [Cache ] register <textinput.width> with limit=None, timeout=60.0s
[DEBUG ] [Video ] Ignored <pygst> (import error)
[DEBUG ] [Video ] Ignored <ffmpeg> (import error)
[DEBUG ] [Video ] Ignored <pyglet> (import error)
[INFO ] [Video ] Provider: null(['video_pygst', 'video_ffmpeg', 'video_pyglet'] ignored)
[DEBUG ] [App ] Loading kv </home/kshk/PycharmProjects/KSHK-PYQT1/my.kv>
[DEBUG ] [App ] kv </home/kshk/PycharmProjects/KSHK-PYQT1/my.kv> not found
[DEBUG ] [Window ] Ignored <egl_rpi> (import error)
[INFO ] [Window ] Provider: pygame(['window_egl_rpi'] ignored)
libpng warning: iCCP: known incorrect sRGB profile
[WARNING ] [WinPygame ] Video: failed (multisamples=2)
[WARNING ] [WinPygame ] trying without antialiasing
[DEBUG ] [Window ] Display driver x11
[DEBUG ] [Window ] Actual window size: 800x600
[DEBUG ] [Window ] Actual color bits r8 g8 b8 a0
[DEBUG ] [Window ] Actual depth bits: 24
[DEBUG ] [Window ] Actual stencil bits: 8
[DEBUG ] [Window ] Actual multisampling samples: 0
[INFO ] [GL ] OpenGL version <2.1 Mesa 10.1.5>
[INFO ] [GL ] OpenGL vendor <VMware, Inc.>
[INFO ] [GL ] OpenGL renderer <Gallium 0.4 on llvmpipe (LLVM 3.4, 256 bits)>
[INFO ] [GL ] OpenGL parsed version: 2, 1
[INFO ] [GL ] Shading version <1.30>
[INFO ] [GL ] Texture max size <8192>
[INFO ] [GL ] Texture max units <16>
[DEBUG ] [Shader ] Fragment compiled successfully
[DEBUG ] [Shader ] Vertex compiled successfully
[DEBUG ] [ImagePygame ] Load </usr/lib/python2.7/site-packages/kivy/data/glsl/default.png>
[INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
[DEBUG ] [Atlas ] Load </usr/lib/python2.7/site-packages/kivy/data/../data/images/defaulttheme.atlas>
[DEBUG ] [Atlas ] Need to load 1 images
[DEBUG ] [Atlas ] Load </usr/lib/python2.7/site-packages/kivy/data/../data/images/defaulttheme-0.png>
[DEBUG ] [ImagePygame ] Load </usr/lib/python2.7/site-packages/kivy/data/../data/images/defaulttheme-0.png>
[INFO ] [OSC ] using <multiprocessing> for socket
[DEBUG ] [Base ] Create provider from mouse
[DEBUG ] [Base ] Create provider from probesysfs
[DEBUG ] [ProbeSysfs ] using probsysfs!
[INFO ] [Base ] Start application main loop
[INFO ] [GL ] NPOT texture support is available
[INFO ] [Base ] Leaving application in progress...
#文件widgets.kv
#：kivy 1.8.0
:
主持人安排：
视频：
资料来源：“driver.avi”
尺码：100100
网格布局：
按钮：
短信：“你好”
电话：0100
尺码：100，50
颜色：.8、.9、0、1
字体大小：32
按钮：
文字：“世界！”
位置：100,0
尺码：100，50
颜色：.8、.9、0、1
字体大小：32
[DEBUG ] [VideoPyGst ] Load <driver.mp4>
** Message: don't know how to handle video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, level=(string)4.2, profile=(string)main, width=(int)1920, height=(int)1080, framerate=(fraction)2997/125, pixel-aspect-ratio=(fraction)1/1, parsed=(boolean)true
[ERROR ] [VideoPyGst ] There is no codec present that can handle the stream's type.
[DEBUG ] [VideoPyGst ] gstplaybasebin.c(2323): prepare_output (): /GstPlayBin:playbin
[ERROR ] [VideoPyGst ] GStreamer encountered a general stream error.
[DEBUG ] [VideoPyGst ] qtdemux.c(3891): gst_qtdemux_loop (): /GstPlayBin:playbin/GstDecodeBin:decodebin0/GstQTDemux:qtdemux0:
streaming stopped, reason not-linked
[INFO ] [Base ] Leaving application in progress...
[DEBUG][VideoPyGst]加载
**消息：不知道如何处理视频/x-h264，流格式=（字符串）字节流，对齐=（字符串）au，级别=（字符串）4.2，配置文件=（字符串）main，宽度=（int）1920，高度=（int）1080，帧速率=（分数）2997/125，像素纵横比=（分数）1/1，解析=（布尔）true
[错误][VideoPyGst]没有可处理流类型的编解码器。
[DEBUG][VideoPyGst]gstplaybasebin.c（2323）：准备输出（）：/GstPlayBin:playbin
[ERROR][VideoPyGst]GStreamer遇到一般流错误。
[DEBUG][VideoPyGst]qtdemux.c（3891）：gst_qtdemux_loop（）：/GstPlayBin:playbin/GstDecodeBin:decodebin0/GstQTDemux:qtdemux0:
流停止，原因未链接
[INFO][Base]正在退出应用程序。。。
/usr/bin/python /home/kshk/PycharmProjects/KSHK-PYQT1/main.py
[INFO ] Kivy v1.8.0
[INFO ] [Logger ] Record log in /home/kshk/.kivy/logs/kivy_14-07-13_58.txt
[INFO ] [Factory ] 157 symbols loaded
[DEBUG ] [Cache ] register <kv.lang> with limit=None, timeout=Nones
[DEBUG ] [Cache ] register <kv.image> with limit=None, timeout=60s
[DEBUG ] [Cache ] register <kv.atlas> with limit=None, timeout=Nones
[INFO ] [Image ] Providers: img_tex, img_dds, img_pygame, img_pil, img_gif
[DEBUG ] [Cache ] register <kv.texture> with limit=1000, timeout=60s
[DEBUG ] [Cache ] register <kv.shader> with limit=1000, timeout=3600s
[INFO ] [Text ] Provider: pygame
[DEBUG ] [Cache ] register <kv.loader> with limit=500, timeout=60s
[INFO ] [Loader ] using a thread pool of 2 workers
[DEBUG ] [Cache ] register <textinput.label> with limit=None, timeout=60.0s
[DEBUG ] [Cache ] register <textinput.width> with limit=None, timeout=60.0s
[DEBUG ] [Video ] Ignored <pygst> (import error)
[DEBUG ] [Video ] Ignored <ffmpeg> (import error)
[DEBUG ] [Video ] Ignored <pyglet> (import error)
[INFO ] [Video ] Provider: null(['video_pygst', 'video_ffmpeg', 'video_pyglet'] ignored)
[DEBUG ] [App ] Loading kv </home/kshk/PycharmProjects/KSHK-PYQT1/my.kv>
[DEBUG ] [App ] kv </home/kshk/PycharmProjects/KSHK-PYQT1/my.kv> not found
[DEBUG ] [Window ] Ignored <egl_rpi> (import error)
[INFO ] [Window ] Provider: pygame(['window_egl_rpi'] ignored)
libpng warning: iCCP: known incorrect sRGB profile
[WARNING ] [WinPygame ] Video: failed (multisamples=2)
[WARNING ] [WinPygame ] trying without antialiasing
[DEBUG ] [Window ] Display driver x11
[DEBUG ] [Window ] Actual window size: 800x600
[DEBUG ] [Window ] Actual color bits r8 g8 b8 a0
[DEBUG ] [Window ] Actual depth bits: 24
[DEBUG ] [Window ] Actual stencil bits: 8
[DEBUG ] [Window ] Actual multisampling samples: 0
[INFO ] [GL ] OpenGL version <2.1 Mesa 10.1.5>
[INFO ] [GL ] OpenGL vendor <VMware, Inc.>
[INFO ] [GL ] OpenGL renderer <Gallium 0.4 on llvmpipe (LLVM 3.4, 256 bits)>
[INFO ] [GL ] OpenGL parsed version: 2, 1
[INFO ] [GL ] Shading version <1.30>
[INFO ] [GL ] Texture max size <8192>
[INFO ] [GL ] Texture max units <16>
[DEBUG ] [Shader ] Fragment compiled successfully
[DEBUG ] [Shader ] Vertex compiled successfully
[DEBUG ] [ImagePygame ] Load </usr/lib/python2.7/site-packages/kivy/data/glsl/default.png>
[INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
[DEBUG ] [Atlas ] Load </usr/lib/python2.7/site-packages/kivy/data/../data/images/defaulttheme.atlas>
[DEBUG ] [Atlas ] Need to load 1 images
[DEBUG ] [Atlas ] Load </usr/lib/python2.7/site-packages/kivy/data/../data/images/defaulttheme-0.png>
[DEBUG ] [ImagePygame ] Load </usr/lib/python2.7/site-packages/kivy/data/../data/images/defaulttheme-0.png>
[INFO ] [OSC ] using <multiprocessing> for socket
[DEBUG ] [Base ] Create provider from mouse
[DEBUG ] [Base ] Create provider from probesysfs
[DEBUG ] [ProbeSysfs ] using probsysfs!
[INFO ] [Base ] Start application main loop
[INFO ] [GL ] NPOT texture support is available
[INFO ] [Base ] Leaving application in progress...
锚点布局：
视频：
资料来源：“随便”
网格布局：
# ...
我得到的只是一个黑屏
回答这个黑屏问题时，可能您没有将python文件与.kv文件链接。这两个文件的链接应该是Builder.load_file（）
例如
...
from kivy.uix.anchorlayout import AnchorLayout
Builder.load_file("widgets.kv")
class MyWidget(Widget):
pass
...
希望这有帮助
...
from kivy.uix.anchorlayout import AnchorLayout
Builder.load_file("widgets.kv")
class MyWidget(Widget):
pass
...