好的伙计们，这是我过去几周遇到的问题，我一直在尝试使用 vaapi。我有支持 vaapi 的英特尔 i5 处理器（Wayland），但由于某种奇怪的原因，我无法让它工作，而且我运行的是 14.10 64 位版本。
已安装软件包列表dpkg --get-selections | grep va：
gstreamer1.0-vaapi:amd64 install
i965-va-driver:amd64 install
i965-va-driver-dbg:amd64 install
libva-dev:amd64 install
libva-drm1:amd64 install
libva-egl1:amd64 install
libva-glx1:amd64 install
libva-intel-vaapi-driver install
libva-tpi1:amd64 install
libva-wayland1:amd64 install
libva-x11-1:amd64 install
libva1:amd64 install
libvdpau-va-gl1:amd64 install
libgstreamer-vaapi1.0-0:amd64 install
libgstreamer-vaapi1.0-dev install
libavahi-client3:amd64 install
libavahi-client3:i386 install
libavahi-common-data:amd64 install
libavahi-common-data:i386 install
libavahi-common3:amd64 install
libavahi-common3:i386 install
libavahi-core7:amd64 install
libavahi-glib1:amd64 install
libavahi-gobject0:amd64 install
vainfo 的输出：
libva info: VA-API version 0.36.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_35
libva info: va_openDriver() returns 0
vainfo: VA-API version: 0.36 (libva 1.4.0)
vainfo: Driver version: Intel i965 driver for Intel(R) Haswell Desktop - 1.3.2
vainfo: Supported profile and entrypoints
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Simple : VAEntrypointEncSlice
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointEncSlice
VAProfileH264ConstrainedBaseline: VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSlice
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSlice
VAProfileVC1Simple : VAEntrypointVLD
VAProfileVC1Main : VAEntrypointVLD
VAProfileVC1Advanced : VAEntrypointVLD
VAProfileNone : VAEntrypointVideoProc
VAProfileJPEGBaseline : VAEntrypointVLD
使用 gstreamer 简单管道如下：
gst-launch-1.0 playbin video-sink=vaapisink uri=rtsp://ip_of_my_camera/
我得到这个作为输出：
New clock: GstSystemClock
Progress: (request) Sending PLAY request
Progress: (request) Sending PLAY request
Progress: (request) Sent PLAY request
Got context from element 'vaapidecode0': gst.vaapi.Display=context, display=(GstVaapiDisplay)NULL;
0:00:03.405005415 27214 0x7f2560023370 ERROR vaapi ../../../../gst-libs/gst/vaapi/gstvaapidecoder_h264.c:1351:ensure_context: unsupported profile_idc 66
0:00:03.405029986 27214 0x7f2560023370 ERROR vaapidecode ../../../gst/vaapi/gstvaapidecode.c:284:gst_vaapidecode_decode_frame: decode error 9
ERROR: from element /GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstRTSPSrc:source/GstUDPSrc:udpsrc0: Internal data flow error.
Additional debug info:
gstbasesrc.c(2943): gst_base_src_loop (): /GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstRTSPSrc:source/GstUDPSrc:udpsrc0:
streaming task paused, reason not-supported (-6)
Execution ended after 0:00:02.567426400
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...
此后我尝试播放简单的 mp4：
gst-launch-1.0 playbin video-sink=vaapisink uri=file:///home/user/test.mp4
我得到这个作为输出：
Setting pipeline to PAUSED ...
libva info: VA-API version 0.36.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_35
libva info: va_openDriver() returns 0
Pipeline is PREROLLING ...
Got context from element 'vaapidecode0': gst.vaapi.Display=context, display=(GstVaapiDisplay)NULL;
0:00:00.082428099 27226 0x7fb268008c00 ERROR vaapi ../../../../gst-libs/gst/vaapi/gstvaapidecoder_h264.c:1351:ensure_context: unsupported profile_idc 66
0:00:00.082457191 27226 0x7fb268008c00 ERROR vaapidecode ../../../gst/vaapi/gstvaapidecode.c:284:gst_vaapidecode_decode_frame: decode error 9
ERROR: from element /GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0/GstQTDemux:qtdemux0: GStreamer encountered a general stream error.
Additional debug info:
qtdemux.c(4432): gst_qtdemux_loop (): /GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0/GstQTDemux:qtdemux0:
streaming stopped, reason not-supported
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...
答案1
我通过选择正确的版本解决了这个问题gstreamer1.0-vaapi。您可以在以下位置获取文件https://www.freedesktop.org/software/vaapi/releases/gstreamer-vaapi/。
下载并解压其中一个文件后，您可以通过运行以下命令进行安装：
./configure
make
make install
当版本不正确（仍然出现错误）时，请使用make uninstall 卸载并继续尝试下一个版本。
apt（您还必须完全卸载使用/安装的版本apt-get。）