运行基本教程时发生Gstreamer错误

我在Gstreamer的中遇到此错误

:00:02.358297919  7270 0xb16041b0 ERROR         v4l2bufferpool gstv4l2bufferpool.c:679:gst_v4l2_buffer_pool_streamon:<v4l2vp8dec0:pool:sink> error with STREAMON 3 (No such process)
0:00:02.358521377  7270 0xb16041b0 ERROR         v4l2bufferpool gstv4l2bufferpool.c:2099:gst_v4l2_buffer_pool_process:<v4l2vp8dec0:pool:sink> failed to start streaming

：00:02.358297919 7270 0xb16041b0错误v4l2bufferpool gstv4l2bufferpool.c:679:gst\U v4l2\U buffer\U pool\U streamon:streamon 3错误（无此过程）
0:00:02.358521377 7270 0xb16041b0错误v4l2bufferpool gstv4l2bufferpool.c:2099:gst_v4l2_buffer_pool_进程：无法启动流式处理

和运行时的等效错误：

管道状态从NULL更改为READY:
0:00:01.089977824 7528 0xaf603f50错误v4l2bufferpool gstv4l2bufferpool.c:679:gst_v4l2_buffer_pool_streamon:streamon 3错误（无此过程）
0:00:01.09011951 7528 0xaf603f50错误v4l2bufferpool gstv4l2bufferpool.c:2099:gst_v4l2_buffer_pool_进程：无法启动流式处理
从“源”接收到新焊盘“src_0”：
它的类型为“video/x-raw”，而不是原始音频。忽略。
从“源”接收到新焊盘“src_1”：
链接成功（键入“音频/x-raw”）。
管道状态已从就绪更改为暂停：
管道状态从暂停更改为播放：
从元素源接收到错误：内部数据流错误。
调试信息：../subprojects/gstreamer/libs/gst/base/gstbasesrc.c（3072）：gst_base_src_loop（）：/GstPipeline:test pipeline/GstURIDecodeBin:source/GstSoupHTTPSrc:source:
流停止，原因错误（-5）

教程2运行良好。

---

我正在使用Gstreamer 1.16和Rasbbian Buster

听起来你的系统上没有安装VP8解码器。它试图在硬件上解码，但Pi不支持VP8的硬件。所以你需要一个基于软件的解码器。检查您的分发版，以了解潜在的可用软件包

Pipeline state changed from NULL to READY:
0:00:01.089977824  7528 0xaf603f50 ERROR         v4l2bufferpool gstv4l2bufferpool.c:679:gst_v4l2_buffer_pool_streamon:<v4l2vp8dec0:pool:sink> error with STREAMON 3 (No such process)
0:00:01.090111951  7528 0xaf603f50 ERROR         v4l2bufferpool gstv4l2bufferpool.c:2099:gst_v4l2_buffer_pool_process:<v4l2vp8dec0:pool:sink> failed to start streaming
Received new pad 'src_0' from 'source':
It has type 'video/x-raw' which is not raw audio. Ignoring.
Received new pad 'src_1' from 'source':
Link succeeded (type 'audio/x-raw').
Pipeline state changed from READY to PAUSED:
Pipeline state changed from PAUSED to PLAYING:
Error received from element source: Internal data stream error.
Debugging information: ../subprojects/gstreamer/libs/gst/base/gstbasesrc.c(3072): gst_base_src_loop (): /GstPipeline:test-pipeline/GstURIDecodeBin:source/GstSoupHTTPSrc:source:
streaming stopped, reason error (-5)