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Sur d’autres sites (12038)

  • errors of 'vaGetDisplay' and `vaGetDisplayDRM' [duplicate]

    29 novembre 2018, par Kindermann

    This question already has an answer here :

    After updating my ubuntu OS from 14.04 to 16.04, I installed the ffmpeg library using the following configurations :

    PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure \
    
  --prefix="$HOME/ffmpeg_build" \
    
  --pkg-config-flags="--static" \
    
  --extra-cflags="-I$HOME/ffmpeg_build/include" \
    
  --extra-ldflags="-L$HOME/ffmpeg_build/lib" \
    
  --bindir="$HOME/bin" \
    
  --enable-gpl \
    
  --enable-libass \
    
  --enable-libfdk-aac \
    
  --enable-libfreetype \
    
  --enable-libmp3lame \
    
  --enable-libopus \
    
  --enable-libtheora \
    
  --enable-libvorbis \
    
  --enable-libvpx \
    
  --enable-libx264 \
    
  --enable-nonfree
    
PATH="$HOME/bin:$PATH" make
    
make install

    It seemed to me the installation process was ok. After that, I tried to compile my own C source code with the following Makefile :

    EDITTED(adding -lva-drm -lva-x11 at line 10)

    FFMPEG_LIBS=    libavdevice                        \
    
                libavformat                        \
    
                libavfilter                        \
    
                libavcodec                         \
    
                libswresample                      \
    
                libswscale                         \
    
                libavutil                          \
    

    
TARGET = video_analysis
    
LIBS = -lva -lX11 -lvdpau -lm -lva-drm -lva-x11
    
CC = gcc
    
CFLAGS += -O2 -g -O0
    
CFLAGS := $(shell pkg-config --cflags $(FFMPEG_LIBS)) $(CFLAGS)
    
LDLIBS := $(shell pkg-config --libs $(FFMPEG_LIBS)) $(LDLIBS)
    

    
.PHONY: default all clean
    

    
default: $(TARGET)
    
all: default
    

    
OBJECTS = $(patsubst %.c, %.o, $(wildcard *.c))
    
HEADERS = $(wildcard *.h)
    

    
%.o: %.c $(HEADERS)
    
        $(CC) $(CFLAGS) -c $< -o $@
    

    
.PRECIOUS: $(TARGET) $(OBJECTS)
    

    
$(TARGET): $(OBJECTS)
    
    $(CC) $(OBJECTS) $(LDLIBS) $(LIBS) -o $@
    

    
clean:
    
    -rm -f *.o
    
    -rm -f $(TARGET)

    However, my compiler complained the following errors :

    /root/ffmpeg_build/lib/libavutil.a(hwcontext_vaapi.o): In function `vaapi_device_create':
    
/home/widerstand/ffmpeg_sources/ffmpeg/libavutil/hwcontext_vaapi.c:896: undefined reference to `vaGetDisplay'
    
/home/widerstand/ffmpeg_sources/ffmpeg/libavutil/hwcontext_vaapi.c:917: undefined reference to `vaGetDisplayDRM'
    
collect2: error: ld returned 1 exit status
    
Makefile:30: recipe for target 'video_analysis' failed
    
make: *** [video_analysis] Error 1

    My question is : in which library do ’vaGetDisplay’ and `vaGetDisplayDRM’ exist ? It’s for sure that libva functions properly. I have no clue how to fix the bugs...Thank you in advance !

  • Build ffmpeg in ndk-r9b error

    4 février 2014, par Huanpq

    I build ffmpeg on linux via use ndk-r9b but i can not build and have some error as bellow., So I don't have any ways to resolve this issue., Pls help me., Thanks so much !

    /home/phamquochuan/android-ndk-r9b/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld : error : cannot find -lavutil
    /home/phamquochuan/android-ndk-r9b/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld : error : cannot find -lavfilter

    ......

    /home/phamquochuan/android-ndk-r9b/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld : ./obj/local/armeabi-v7a/objs/basicplayer/BasicPlayer/BasicPlayer.o : in function decode:jni/BasicPlayer/BasicPlayer.c:1263 : error : undefined reference to 'av_rescale_q'
    /home/phamquochuan/android-ndk-r9b/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/../lib/gcc/arm-linux-androideabi/4.6/../../../../arm-linux-androideabi/bin/ld : ./obj/local/armeabi-v7a/objs/basicplayer/BasicPlayer/BasicPlayer.o : in function decode:jni/BasicPlayer/BasicPlayer.c:1266 : error : undefined reference to 'av_seek_frame'
    collect2 : ld returned 1 exit status
    make : * [obj/local/armeabi-v7a/libbasicplayer.so] Error 1

  • PyArcade (Pyglet) python3 Help needed

    8 juillet 2024, par F4zi

    Python 3.8.1

    


    using python-arcade and linux manjaro os

    


    This project is a multiplayer game built with python arcade

    


    I get these errors while running :

    


    class Client(arcade.Window):

    def __init__(
        self, 
        width: int, 
        height: int, 
        title: str = 'Immortals'
    ) -> None:
        super().__init__(width, height, title=title)


    


    Traceback (most recent call last):&#xA;  File "/home/iddos/Documents/Github/Python/immortals/immortals/main.py", line 42, in <module>&#xA;    main(**config[&#x27;resolution&#x27;])&#xA;  File "/home/iddos/Documents/Github/Python/immortals/immortals/main.py", line 20, in main&#xA;    window = Immortals(*args, **kwargs)&#xA;  File "/home/iddos/Documents/Github/Python/immortals/immortals/core/client.py", line 40, in __init__&#xA;    super().__init__(width, height, title=title)&#xA;  File "/home/iddos/.local/share/virtualenvs/immortals-SS7Euna6/lib/python3.8/site-packages/arcade/application.py", line 70, in __init__&#xA;    super().__init__(width=width, height=height, caption=title,&#xA;  File "/home/iddos/.local/share/virtualenvs/immortals-SS7Euna6/lib/python3.8/site-packages/pyglet/window/xlib/__init__.py", line 171, in __init__&#xA;    super(XlibWindow, self).__init__(*args, **kwargs)&#xA;  File "/home/iddos/.local/share/virtualenvs/immortals-SS7Euna6/lib/python3.8/site-packages/pyglet/window/__init__.py", line 642, in __init__&#xA;    self._create()&#xA;  File "/home/iddos/.local/share/virtualenvs/immortals-SS7Euna6/lib/python3.8/site-packages/arcade/application.py", line 469, in _create&#xA;    super()._create()&#xA;  File "/home/iddos/.local/share/virtualenvs/immortals-SS7Euna6/lib/python3.8/site-packages/pyglet/window/xlib/__init__.py", line 352, in _create&#xA;    self.set_caption(self._caption)&#xA;  File "/home/iddos/.local/share/virtualenvs/immortals-SS7Euna6/lib/python3.8/site-packages/arcade/application.py", line 481, in set_caption&#xA;    super().set_caption(caption)&#xA;  File "/home/iddos/.local/share/virtualenvs/immortals-SS7Euna6/lib/python3.8/site-packages/pyglet/window/xlib/__init__.py", line 511, in set_caption&#xA;    self._set_text_property(&#x27;_NET_WM_NAME&#x27;, caption)&#xA;  File "/home/iddos/.local/share/virtualenvs/immortals-SS7Euna6/lib/python3.8/site-packages/pyglet/window/xlib/__init__.py", line 785, in _set_text_property&#xA;    raise XlibException(&#x27;Could not create UTF8 text property&#x27;)&#xA;pyglet.window.xlib.XlibException: Could not create UTF8 text property&#xA;</module>

    &#xA;

    And also this ffmpeg not found error, altough ffmpeg is in /usr/bin/ffmpeg

    &#xA;

    Unable to find match for ffmpeg sound library at expected location: /home/iddos/.local/share/virtualenvs/immortals-SS7Euna6/lib64/python3.8/site-packages/pyglet_ffmpeg2/linux_x86_64/libavfilter.so.7.&#xA;

    &#xA;

    I would love to get some help from you guys since i didn't find a solution for this yet.

    &#xA;

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