我正在尝试使用 Gstreamer 创建图像矢量。为此，我像这样使用 videomixer gref：
gst-launch -e \videomixer name = mixer \
sink_0::xpos = 0 sink_0::ypos = 0 \
sink_1::xpos = 100 sink_1::ypos = 0 \
sink_2::xpos = 200 sink_2::ypos = 0 \
sink_3::xpos = 300 sink_3::ypos = 0 \
sink_4::xpos = 400 sink_4::ypos = 0 \
sink_5::xpos = 500 sink_5::ypos = 0 \
sink_6::xpos = 600 sink_6::ypos = 0 \
sink_7::xpos = 700 sink_7::ypos = 0 \
sink_8::xpos = 0 sink_8::ypos = 0 \
! xvimagesink \
filesrc location = 0.jpg \
! decodebin2 ! ffmpegcolorspace \
! imagefreeze ! videoscale method = 1 ! video/x-raw-yuv, width = 100, height = 100 ! mixer.sink_0. \
filesrc location = 1.jpeg \
! decodebin2 ! ffmpegcolorspace \
! imagefreeze ! videoscale method = 1 ! video/x-raw-yuv, width = 100, height = 100 ! mixer.sink_1. \
filesrc location = 2.png \
! decodebin2 ! ffmpegcolorspace \
! imagefreeze ! videoscale method = 1 ! video/x-raw-yuv, width = 100, height = 100 ! mixer.sink_2. \
filesrc location = 3.png \
! decodebin2 ! ffmpegcolorspace \
! imagefreeze ! videoscale method = 1 ! video/x-raw-yuv, width = 100, height = 100 ! mixer.sink_3. \
filesrc location = 4.png \
! decodebin2 ! ffmpegcolorspace \
! imagefreeze ! videoscale method = 1 ! video/x-raw-yuv, width = 100, height = 100 ! mixer.sink_4. \
filesrc location = 5.png \
! decodebin2 ! ffmpegcolorspace \
! imagefreeze ! videoscale method = 1 ! video/x-raw-yuv, width = 100, height = 100 ! mixer.sink_5. \
filesrc location = 6.JPG \
! decodebin2 ! ffmpegcolorspace \
! imagefreeze ! videoscale method = 1 ! video/x-raw-yuv, width = 100, height = 100 ! mixer.sink_6. \
filesrc location = 7.png \
! decodebin2 ! ffmpegcolorspace \
! imagefreeze ! videoscale method = 1 ! video/x-raw-yuv, width = 100, height = 100 ! mixer.sink_7. \
filesrc location = bg.jpg \
! decodebin2 ! ffmpegcolorspace \
! imagefreeze ! mixer.sink_8.
但我有一个问题，它似乎只适用于几种类型的图像（通常使用 .png，但不适用于 .jpg）。我不明白，decodebin 应该与文件格式无关，不是吗？我试图为向量的每个元素放置相同的 png 文件，这没关系，那怎么了？我有以下错误：“数据流内部错误”。
你有想法吗 ？
谢谢 ！
（对不起我的英语，我是法国人）