# 视频编码与解码
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
摄像头和视频编码用例展示了编码和处理实时 4K 和 1080p 摄像头流的各种场景。
### 前提条件
- 确保已完成 [GStreamer 命令行用例](https://docs.qualcomm.com/doc/80-70022-50SC/topic/gstreamer-application-use-cases.html)中提及的前提条件。
- 在主机上安装 VLC 媒体播放器以播放 RTSP 流。
Note: QCS6490 不支持 24 路端到端并发视频会话。
## 一路流 - 来自实时源的 1080p AVC RTSP 流
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
该用例对来自摄像头的 1080p 流进行编码。编码流使用 RTSP 流通过网络发送。
下图展示了 pipeline 执行的流程：
Figure : 1080p RTSP 流编码 pipeline
- 使用 udpsrc 在目标设备上运行 RTSP 服务器（您可以在后台将其作为服务运行）：
gst-rtsp-server -a "< IP_address of the device >" -p 8900 -m /live "( udpsrc name=pay0 port=8554 caps=\"application/x-rtp,media=video,clock-rate=90000,encoding-name=H264,payload=96\" )"Copy to clipboard
如果设备的 IP 地址为 127.0.0.1，请执行以下命令：
adb forward tcp:8900 tcp:8900Copy to clipboard
- 在目标设备上的另一个控制台中运行 pipeline：
gst-launch-1.0 -e qtiqmmfsrc name=camsrc video_0::type=preview ! video/x-raw,format=NV12_Q08C,width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux.mp4" camsrc. ! video/x-raw,format=NV12,width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse config-interval=-1 ! rtph264pay pt=96 ! udpsink host= port=8554 camsrc. ! video/x-raw,format=NV12,width=1920,height=1080,framerate=30/1 ! waylandsink fullscreen=trueCopy to clipboard
视频流在主机上显示为 RTSP 流。
要停止用例，请使用 CTRL + C。
### 主机上的 RTSP 流
Note: 确保您已在 Linux 主机上安装了 VLC 媒体播放器。
要在主机上查看 RTSP 流，请执行以下操作之一：
- vlc -vvv rtsp://<IP\_address of the device>:8900/live[带有 VLC 版本 3.0.8 的 Ubuntu 18.04]
- ffplay -rtsp\_transport tcp rtsp://<IP\_address of the
device>:8900/live
要在 Windows 主机上查看 RTSP 流，请执行以下操作：
1. 打开 VLC 媒体播放器。
2. 转到 Media > Open Network Stream，或按 CTRL +
N。
3. 输入 rtsp://<IP\_address of the device>:8900/live。
4. 选择 Play
## 二路流 - 来自实时源的 4K AVC 和 480p AVC 流
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
这些用例实现了来自摄像头的一个 4k 流和一个 1080p 流进行编码。每个编码的数据流都多路复用到不同的文件中。
在目标设备上运行用例：
gst-launch-1.0 -e qtiqmmfsrc name=camsrc video_0::type=preview ! video/x-raw,format=NV12_Q08C,width=3840,height=2160,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux1.mp4" camsrc. ! video/x-raw,format=NV12_Q08C,width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux2.mp4"Copy to clipboard
要停止用例，请使用 CTRL + C。从目标设备中拉取录制的内容，然后在主机上播放内容。
在主机的终端中，运行以下命令：
scp -r root@[DEVICE IP-ADDR]:/opt/mux1.mp4 user1@[HOST IP-ADDR]:/workspace/Copy to clipboard
scp -r root@[DEVICE IP-ADDR]:/opt/mux2.mp4 user1@[HOST IP-ADDR]:/workspace/Copy to clipboard
您可以在媒体播放器上播放 MP4 文件。
下图展示了 pipeline 执行的流程：
Figure : 用于编码两个（4k 和 1080p）摄像头流的 pipeline
## 来自实时源的三个 1080p AVC 数据流
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
该用例对来自摄像头的三路 1080p 流进行编码。每个编码的数据流都多路复用到不同的文件中。
在目标设备上运行用例：
gst-launch-1.0 -e qtiqmmfsrc name=camsrc video_0::type=preview ! video/x-raw,format=NV12_Q08C,width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux1.mp4" camsrc. ! video/x-raw,format=NV12_Q08C,width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux2.mp4" camsrc. ! video/x-raw,format=NV12_Q08C,width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux3.mp4"Copy to clipboard
要停止用例，请使用 CTRL + C。从目标设备中拉取录制的内容，然后在主机上播放内容。
您可以在媒体播放器上播放 MP4 文件。
在主机的终端中，运行以下命令之一：
scp -r root@[DEVICE IP-ADDR]:/opt/mux1.mp4 user1@[HOST IP-ADDR]:/workspaceCopy to clipboard
scp -r root@[DEVICE IP-ADDR]:/opt/mux2.mp4 user1@[HOST IP-ADDR]:/workspaceCopy to clipboard
scp -r root@[DEVICE IP-ADDR]:/opt/mux3.mp4 user1@[HOST IP-ADDR]:/workspaceCopy to clipboard
下图展示了 pipeline 执行的流程：
Figure : 用于编码三个 1080p 摄像头流的 pipeline
## 三路流 - 来自实时源的 720p AVC、720p HEVC 和 720p YUV 流
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
该用例使用来自摄像头的三路 720p 流。对其中两路视频流进行编码 - 一路编码为 H.264，另一路编码为 HEVC。这些数据流被多路复用到不同的文件中。对第三路流进行显示。
Note: 此用例不适用于 Dragonwing IQ-8275 和 Dragonwing IQ-9075。
在目标设备上运行用例：
gst-launch-1.0 -e qtiqmmfsrc name=camsrc video_0::type=preview video_1::type=video ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux1.mp4" camsrc. ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! v4l2h265enc capture-io-mode=4 output-io-mode=5 ! queue ! h265parse ! mp4mux ! queue ! filesink location="/opt/mux_hevc.mp4" camsrc. ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! waylandsink fullscreen=trueCopy to clipboard
要停止用例，请使用 CTRL + C。从目标设备中拉取录制的内容，然后在主机上播放内容。
显示摄像头流。您可以在媒体播放器上播放 MP4 文件。
在主机的终端中，运行以下命令：
scp -r root@[DEVICE IP-ADDR]:/opt/mux1.mp4 user1@[HOST IP-ADDR]:/workspace/Copy to clipboard
scp -r root@[DEVICE IP-ADDR]:/opt/mux_hevc.mp4 user1@[HOST IP-ADDR]:/workspace/Copy to clipboard
下图展示了 pipeline 执行的流程：
Figure : 用于对 720p AVC、720p HEVC 和 720p YUV 摄像头流进行编码的 pipeline
## 三路流 - 来自实时源的 720p AVC MP4、720p AVC MPEGTS 和 720p AVC MP4 流
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
该用例使用来自摄像头的三路 720p 流进行编码。每路视频流都编码为 H.264 并复用到不同的文件中 - 两路为 MP4，一路为 MPEGTS。
在目标设备上运行用例：
gst-launch-1.0 -e qtiqmmfsrc name=camsrc video_0::type=preview video_1::type=video ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux1.mp4" camsrc. ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mpegtsmux name=muxer ! queue ! filesink location="/opt/mux_mpegts.mp4" camsrc. ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h265enc capture-io-mode=4 output-io-mode=5 ! queue ! h265parse ! mp4mux ! queue ! filesink location="/opt/mux3.mp4"Copy to clipboard
要停止用例，请使用 CTRL + C。
从目标设备中拉取录制的内容，然后使用媒体播放器在主机上播放内容。
在主机的终端中，运行以下命令：
scp -r root@[DEVICE IP-ADDR]:/opt/mux1.mp4 user1@[HOST IP-ADDR]:/workspaceCopy to clipboard
scp -r root@[DEVICE IP-ADDR]:/opt/mux_mpegts.mp4 user1@[HOST IP-ADDR]:/workspaceCopy to clipboard
scp -r root@[DEVICE IP-ADDR]:/opt/mux3.mp4 user1@[HOST IP-ADDR]:/workspaceCopy to clipboard
下图展示了 pipeline 执行的流程：
Figure : 用于对 720p AVC MP4、720p AVC MPEGTS 和 720p AVC MP4 摄像头流进行编码的 pipeline
## 三路流 – 来自实时源的 1080p AVC 文件保存、1080p AVC RTSP 和 1080p YUV 流
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
用例使用来自摄像头的三路 1080p 流。两路流编码为 H.264。第一个数据流被多路复用并保存到文件中。第二路流通过 RTSP 流在网络上发送。第三个流被发送到显示器。
在目标设备上运行用例，如下所示：
使用 `udpsrc` 在目标设备上的单独控制台中运行 RTSP 服务器（可作为服务在后台运行）：
gst-rtsp-server -p 8900 -a -m /live "( udpsrc name=pay0 port=8554 caps=\"application/x-rtp,media=video,clock-rate=90000,encoding-name=H264,payload=96\" )"Copy to clipboard
在目标设备的同一控制台或其他控制台中运行 pipeline：
**1080P 用例：**
gst-launch-1.0 -e qtiqmmfsrc name=camsrc video_0::type=preview ! video/x-raw,format=NV12_Q08C,width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux.mp4" camsrc. ! video/x-raw,format=NV12,width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse config-interval=-1 ! rtph264pay pt=96 ! udpsink host= port=8554 camsrc. ! video/x-raw,format=NV12,width=1920,height=1080,framerate=30/1 ! waylandsink fullscreen=trueCopy to clipboard
**720P 用例：**
gst-launch-1.0 -e qtiqmmfsrc name=camsrc video_0::type=preview ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux.mp4" camsrc. ! video/x-raw,format=NV12,width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse config-interval=-1 ! rtph264pay pt=96 ! udpsink host= port=8554 camsrc. ! video/x-raw,format=NV12,width=1280,height=720,framerate=30/1 ! waylandsink fullscreen=trueCopy to clipboard
要停止用例，请使用 CTRL + C。
从目标设备中拉取录制的内容，然后在主机上播放内容。
在主机的终端中，运行以下命令：
scp -r root@[DEVICE IP-ADDR]:/opt/mux.mp4 user1@[HOST IP-ADDR]:/workspace/Copy to clipboard
您可以在任何媒体播放器上播放 MP4 文件。视频流在主机上作为 RTSP 流播放。显示来自摄像头的第三个流。
下图展示了 pipeline 执行的流程：
Figure : 用于编码三个 1080p 摄像头流的 pipeline
### 相关信息
[主机上的 RTSP 流](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html#one_stream_1080p_avc_rtsp_from_live_source__section_ayq_2nh_pyb)
## 三路流 - 来自实时源的 4k JPEG 拍照、1080p AVC MP4 和 1080p YUV 流
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
用例使用来自摄像头的三路流。第一路流是 JPEG 拍照的 4k 数据流。第二路流为 1080p 流，将其编码为 H.264 后进行复用。第三路 1080p 流进行显示。
Note: 对于 Dragonwing IQ-9075 和 Dragonwing IQ-8275，目前不支持 JPEG 视频编码。
在目标设备上运行用例：
gst-pipeline-app -e qtiqmmfsrc name=camsrc video_0::type=preview ! video/x-raw,format=NV12,width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux.mp4" camsrc.image_1 ! "image/jpeg,width=3840,height=2160,framerate=30/1" ! multifilesink location=/opt/frame%d.jpg sync=true async=false camsrc. ! video/x-raw,format=NV12,width=1920,height=1080,framerate=30/1 ! waylandsink fullscreen=trueCopy to clipboard
在 `cmd`命令行终端上显示菜单。
1. 选择 Playing 模式。该 pipeline 启动视频流传输。
2. 按 Enter。
3. 选择 Plugin 模式并选择 `camsrc`。
4. 选择 Capture image 选项。
5. 选择 video 或 still
capture。
6. 输入您要拍照的数量。
请按 Back，然后从菜单中选择 Quit 选项，以停止用例。
您可以在媒体播放器上播放 MP4 文件和照片。显示来自摄像头的数据流。
从目标设备中拉取录制的内容，然后在主机上播放内容。
scp -r root@[DEVICE IP-ADDR]:/opt/mux.mp4 user1@[HOST IP-ADDR]:/workspaceCopy to clipboard
scp -r root@[DEVICE IP-ADDR]:/opt/frame*.jpg user1@[HOST IP-ADDR]:/workspaceCopy to clipboard
下图展示了 pipeline 执行的流程：
Figure : 用于处理三路摄像头流的 pipeline - 将 4K 流转换为 JPEG 快照、对 1080p 流进行编码、对 1080p 流进行显示
## 二路流 - 1080p MJPEG 编码器
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
MJPEG 编码器以MJPEG 格式对采集的视频流进行编码和写入。运行编码、保存到文件和在显示器上预览的用例。
Note: Dragonwing IQ-9075 和 Dragonwing IQ-8275 目前不支持 MJPEG 视频编码。
在目标设备上运行此编码器的以下用例。在运行这些用例之前，请在终端中输入 3 以进入播放状态。
- H.264 编码和 MJPEG dump 到文件：
gst-pipeline-app -e qtiqmmfsrc name=camsrc video_0::type=preview ! video/x-raw,format=NV12_Q08C,width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux.mp4" camsrc. ! "image/jpeg,width=3840,height=2160,framerate=30/1" ! queue ! avimux ! filesink location=/opt/4k_mjpeg.avi sync=true async=falseCopy to clipboard
mux.mp4和 4k\_mjpeg.avi 文件存储在 /opt/ 中。
- H.265 编码和 MJPEG dump 到文件：
gst-pipeline-app -e qtiqmmfsrc name=camsrc video_0::type=preview ! video/x-raw,format=NV12_Q08C,width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h265enc capture-io-mode=4 output-io-mode=5 ! queue ! h265parse ! mp4mux ! queue ! filesink location="/opt/mux.mp4" camsrc. ! "image/jpeg,width=3840,height=2160,framerate=30/1" ! queue ! avimux ! filesink location=/opt/4k_mjpeg.avi sync=true async=falseCopy to clipboard
mux.mp4和 4k\_mjpeg.avi 文件存储在 /opt/ 中。
- 预览显示使用 MJPEG 编码的文件：
gst-pipeline-app -e qtiqmmfsrc name=camsrc video_0::type=preview ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! waylandsink fullscreen=true camsrc.video_1 ! "image/jpeg,width=1280,height=720,framerate=30/1" ! queue ! avimux ! filesink location=/opt/mjpeg.avi sync=true async=falseCopy to clipboard
视频在屏幕上预览，mjpeg.avi文件存储在 /opt/ 中。
- 预览显示使用 MJPEG 和 H.264 编码的文件：
gst-pipeline-app -e qtiqmmfsrc name=camsrc video_0::type=preview ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! waylandsink fullscreen=true camsrc.video_1 ! "image/jpeg,width=1280,height=720,framerate=30/1" ! queue ! avimux ! filesink location=/opt/mjpeg_2.avi sync=true async=false camsrc.video_2 ! video/x-raw,format=NV12,width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! queue ! h264parse ! mp4mux ! queue ! filesink location="/opt/mux.mp4"Copy to clipboard
视频在屏幕上预览，mux.mp4和 mjpeg.avi 文件存储在 /opt/。
## 基于切片的编码
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
通过视频编码的切片，视频流被分割或切片为多个部分，以进行并行编码。
用户可以将基于切片的编码用于视频播放、电话会议和安全摄像头用例。
这些用例使您能够在摄像头流上实现基于切片的编码。输出视频文件存储在 /opt/。
在目标设备上运行以下用例：
### H.264
- 1280 × 720，每帧最大切片数 = 10：
gst-launch-1.0 -e qtiqmmfsrc ! video/x-raw,format=NV12,width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=4 extra-controls="controls,h264_profile=4,h264_level=14,video_bitrate=4800000,video_bitrate_mode=1,frame_level_rate_control_enable=1,video_gop_size=299,h264_entropy_mode=1,slice_partitioning_method=1,numbe_of_mbs_in_a_slice=1200,video_peak_bitrate=32000000;" ! filesink location="/opt/spincalender1280X760_1200_MB_720p_live1800.h264"Copy to clipboard
- 1280 × 720，每帧切片数 = 8：
gst-launch-1.0 -ev videotestsrc is-live=true pattern=ball ! video/x-raw,format="NV12",width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=4 extra-controls="controls,h264_profile=4,h264_level=14,video_bitrate=4800000,video_bitrate_mode=1,frame_level_rate_control_enable=1,video_gop_size=299,h264_entropy_mode=1,slice_partitioning_method=1,number_of_mbs_in_a_slice=450,video_peak_bitrate=32000000;" ! filesink location="/opt/slice_8_MB_720p_live.h264"Copy to clipboard
- 1920 × 1080，每帧切片数 = 3：
gst-launch-1.0 -ev videotestsrc is-live=true pattern=ball ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=4 extra-controls="controls,h264_profile=4,h264_level=14,video_bitrate=4800000,video_bitrate_mode=1,frame_level_rate_control_enable=1,video_gop_size=299,h264_entropy_mode=1,slice_partitioning_method=1,number_of_mbs_in_a_slice=2700,video_peak_bitrate=32000000;" ! filesink location="/opt/slice_3_MB_1080p.h264"Copy to clipboard
- 1280 × 720，最大字节模式：
gst-launch-1.0 -e qtiqmmfsrc ! video/x-raw,format=NV12,width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=5 extra-controls="controls,slice_partitioning_method=2;" ! filesink location="/opt/encoded.h264"Copy to clipboard
### H.265
- 1280 × 720，每帧最大切片数 = 10：
gst-launch-1.0 -e qtiqmmfsrc ! video/x-raw,format=NV12,width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h265enc capture-io-mode=4 output-io-mode=5 extra-controls="controls,slice_partitioning_method=1;" ! filesink location="/opt/encoded.h265"Copy to clipboard
- 1280 × 720，每帧切片数 = 8：
gst-launch-1.0 -ev videotestsrc is-live=true pattern=ball ! video/x-raw,format="NV12",width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h265enc capture-io-mode=4 output-io-mode=4 extra-controls="controls,h265_profile=4,h265_level=14,video_bitrate=4800000,video_bitrate_mode=1,frame_level_rate_control_enable=1,video_gop_size=299,h265_entropy_mode=1,slice_partitioning_method=1,number_of_mbs_in_a_slice=450,video_peak_bitrate=32000000;" ! filesink location="/opt/slice_8_MB_720p_live.h265"Copy to clipboard
- 1920 × 1080，每帧切片数 = 3：
gst-launch-1.0 -ev videotestsrc is-live=true pattern=ball ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h265enc capture-io-mode=4 output-io-mode=4 extra-controls="controls,h265_profile=4,h265_level=14,video_bitrate=4800000,video_bitrate_mode=1,frame_level_rate_control_enable=1,video_gop_size=299,h265_entropy_mode=1,slice_partitioning_method=1,number_of_mbs_in_a_slice=2700,video_peak_bitrate=32000000;" ! filesink location="/opt/slice_3_MB_1080p.h265"Copy to clipboard
- 1280 × 720，最大字节模式：
gst-launch-1.0 -ev videotestsrc is-live=true pattern=ball ! video/x-raw,format="NV12",width=1280,height=720,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! queue ! v4l2h264enc capture-io-mode=4 output-io-mode=4 extra-controls="controls,h264_profile=4,h265_level=14,video_bitrate=4800000,video_bitrate_mode=1,frame_level_rate_control_enable=1,video_gop_size=299,h264_entropy_mode=1,slice_partitioning_method=1,numbe_of_mbs_in_a_slice=360,video_peak_bitrate=32000000;" ! filesink location="/opt/spincalender1280X760_1200_MB_720p_live.h265"Copy to clipboard
## 帧内智能编解码器（H.264 和 H.265）
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
帧内（I 帧）是一种数据压缩技术，可实现更小的文件大小和更低的码率。使用智能 codec 和降噪功能运行 720p@30 HEVC 流的用例。
对于这些用例，输出的 video.mp4 文件存储在 /opt/。
在目标设备上运行以下用例：
### 具有智能码率、智能帧率和智能 GOP 的 720p@30 HEVC 流 – 启用降噪
Note: 以下用例在 Ubuntu Server 上不受支持。
- H.264
gst-launch-1.0 -ev qtiqmmfsrc noise-reduction=2 video_0::extra-buffers=20 video_0::type=preview name=camsrc ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb.sink qtismartvencbin default-gop=30 max-gop=600 smart-framerate=false smart-gop=false encoder="v4l2h264enc" max-bitrate=4200000 name=scb ! queue ! h264parse ! queue ! mp4mux ! queue ! filesink location=/opt/video.mp4 camsrc. ! video/x-raw,format=NV12_Q08C,width=640,height=480,framerate=15/1 ! queue ! scb.sink_ctrlCopy to clipboard
- H.265
gst-launch-1.0 -ev qtiqmmfsrc noise-reduction=2 video_0::extra-buffers=20 video_0::type=preview name=camsrc ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb.sink qtismartvencbin default-gop=30 max-gop=600 smart-framerate=false smart-gop=false encoder="v4l2h265enc" max-bitrate=4200000 name=scb ! queue ! h265parse ! queue ! mp4mux ! queue ! filesink location=/opt/video.mp4 camsrc. ! video/x-raw,format=NV12_Q08C,width=640,height=480,framerate=15/1 ! queue ! scb.sink_ctrlCopy to clipboard
### 仅具有智能码率的 720p@30 HEVC 流 - 启用降噪
- H.264
gst-launch-1.0 -ev qtiqmmfsrc noise-reduction=2 video_0::extra-buffers=20 video_0::type=preview name=camsrc ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb.sink qtismartvencbin default-gop=30 max-gop=600 smart-framerate=false smart-gop=false encoder="v4l2h264enc" max-bitrate=4200000 name=scb ! queue ! h264parse ! queue ! mp4mux ! queue ! filesink location=/opt/video.mp4 camsrc. ! video/x-raw,format=NV12_Q08C,width=640,height=480,framerate=15/1 ! queue ! scb.sink_ctrlCopy to clipboard
- H.265
gst-launch-1.0 -ev qtiqmmfsrc noise-reduction=2 video_0::extra-buffers=20 video_0::type=preview name=camsrc ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb.sink qtismartvencbin default-gop=30 max-gop=600 smart-framerate=false smart-gop=false encoder="v4l2h265enc" max-bitrate=4200000 name=scb ! queue ! h265parse ! queue ! mp4mux ! queue ! filesink location=/opt/video.mp4 camsrc. ! video/x-raw,format=NV12_Q08C,width=640,height=480,framerate=15/1 ! queue ! scb.sink_ctrlCopy to clipboard
### 具有智能码率、智能帧率和智能 GOP 的 720p@30 HEVC 流 – 禁用降噪
- H.264
gst-launch-1.0 -ev qtiqmmfsrc video_0::extra-buffers=20 video_0::type=preview name=camsrc ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb.sink qtismartvencbin default-gop=30 max-gop=600 encoder="v4l2h264enc" max-bitrate=4200000 name=scb ! queue ! h264parse ! queue ! mp4mux ! queue ! filesink location=/opt/video.mp4 camsrc. ! video/x-raw,format=NV12_Q08C,width=640,height=480,framerate=15/1 ! queue ! scb.sink_ctrlCopy to clipboard
- H.265
gst-launch-1.0 -ev qtiqmmfsrc video_0::extra-buffers=20 video_0::type=preview name=camsrc ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb.sink qtismartvencbin default-gop=30 max-gop=600 encoder="v4l2h265enc" max-bitrate=4200000 name=scb ! queue ! h265parse ! queue ! mp4mux ! queue ! filesink location=/opt/video.mp4 camsrc. ! video/x-raw,format=NV12_Q08C,width=640,height=480,framerate=15/1 ! queue ! scb.sink_ctrlCopy to clipboard
### 具有智能码率、智能帧率和智能 GOP 的 720p@30 HEVC 流 – 启用降噪
- H.264
gst-launch-1.0 -ev qtiqmmfsrc noise-reduction=2 video_0::extra-buffers=20 video_0::type=preview name=camsrc ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb.sink qtismartvencbin default-gop=30 max-gop=600 encoder="v4l2h264enc" max-bitrate=4200000 name=scb ! queue ! h264parse config-interval=1 ! mpegtsmux name=muxer ! queue ! tcpserversink port=8900 host= camsrc. ! video/x-raw,format=NV12_Q08C,width=640,height=480,framerate=15/1 ! queue ! scb.sink_ctrlCopy to clipboard
- H.265
gst-launch-1.0 -ev qtiqmmfsrc noise-reduction=2 video_0::extra-buffers=20 video_0::type=preview name=camsrc ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb.sink qtismartvencbin default-gop=30 max-gop=600 encoder="v4l2h265enc" max-bitrate=4200000 name=scb ! queue ! h265parse config-interval=1 ! mpegtsmux name=muxer ! queue ! tcpserversink port=8900 host= camsrc. ! video/x-raw,format=NV12_Q08C,width=640,height=480,framerate=15/1 ! queue ! scb.sink_ctrlCopy to clipboard
要通过 TCP 播放流，请在 Windows 主机上执行以下操作：
1. 打开 VLC 媒体播放器。
2. 选择 Media > Open Network Stream 或按 CTRL + N）。
3. 输入 tcp://<ip\_address>:8900/live。
4. 按 Play
### 具有智能码率、智能帧率和智能 GOP 的 720p@30 HEVC 流 – 启用降噪
- H.264
gst-launch-1.0 -ev qtiqmmfsrc noise-reduction=2 video_0::extra-buffers=20 video_0::type=preview name=camsrc ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb.sink qtismartvencbin default-gop=30 max-gop=600 encoder="v4l2h264enc" max-bitrate=1000000 name=scb ! queue ! h264parse ! queue ! mp4mux ! queue ! filesink location=/opt/video.mp4 camsrc. ! video/x-raw,format=NV12_Q08C,width=640,height=480,framerate=15/1 ! queue ! tee name=split ! queue ! scb.sink_ctrl split. ! queue ! qtimlvconverter ! queue ! qtimltflite delegate=external external-delegate-path=libQnnTFLiteDelegate.so external-delegate-options="QNNExternalDelegate,backend_type=htp;" model= ! queue ! qtimlvdetection threshold=50.0 results=5 module=yolov8 labels= constants="YOLOv8,q-offsets=<-107.0, -128.0, 0.0>,q-scales=<3.093529462814331, 0.00390625, 1.0>;" ! text/x-raw ! queue ! scb.sink_mlCopy to clipboard
- H.265
gst-launch-1.0 -ev qtiqmmfsrc noise-reduction=2 video_0::extra-buffers=20 video_0::type=preview name=camsrc ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb.sink qtismartvencbin default-gop=30 max-gop=600 encoder="v4l2h265enc" max-bitrate=1000000 name=scb ! queue ! h265parse ! queue ! mp4mux ! queue ! filesink location=/opt/video.mp4 camsrc. ! video/x-raw,format=NV12_Q08C,width=640,height=480,framerate=15/1 ! queue ! tee name=split ! queue ! scb.sink_ctrl split. ! queue ! qtimlvconverter ! queue ! qtimltflite delegate=external external-delegate-path=libQnnTFLiteDelegate.so external-delegate-options="QNNExternalDelegate,backend_type=htp;" model= ! queue ! qtimlvdetection threshold=50.0 results=5 module=yolov8 labels= constants="YOLOv8,q-offsets=<-107.0, -128.0, 0.0>,q-scales=<3.093529462814331, 0.00390625, 1.0>;" ! text/x-raw ! queue ! scb.sink_mlCopy to clipboard
### 并发两个 720p@30 HEVC 流，并启用智能码率、智能帧率和智能 GOP 降噪功能
- H.264
gst-launch-1.0 -ev qtiqmmfsrc noise-reduction=2 video_0::extra-buffers=20 video_0::type=preview video_1::extra-buffers=20 name=camsrc ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb1.sink qtismartvencbin default-gop=30 max-gop=600 encoder="v4l2h264enc" max-bitrate=4200000 name=scb1 ! queue ! h264parse ! queue ! mp4mux ! queue ! filesink location=/opt/video_scb1.mp4 camsrc. ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb2.sink qtismartvencbin default-gop=30 max-gop=600 encoder="v4l2h264enc" max-bitrate=4200000 name=scb2 ! queue ! h264parse ! queue ! mp4mux ! queue ! filesink location=/opt/video_scb2.mp4 camsrc. ! video/x-raw,format=NV12_Q08C,width=640,height=480,framerate=15/1 ! queue ! tee name=ctrl_t ! queue ! scb1.sink_ctrl ctrl_t. ! queue ! scb2.sink_ctrlCopy to clipboard
- H.265
gst-launch-1.0 -ev qtiqmmfsrc noise-reduction=2 video_0::extra-buffers=20 video_0::type=preview video_1::extra-buffers=20 name=camsrc ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb1.sink qtismartvencbin default-gop=30 max-gop=600 encoder="v4l2h265enc" max-bitrate=4200000 name=scb1 ! queue ! h265parse ! queue ! mp4mux ! queue ! filesink location=/opt/video_scb1.mp4 camsrc. ! video/x-raw,format=NV12_Q08C,width=1280,height=720,framerate=30/1 ! queue ! scb2.sink qtismartvencbin default-gop=30 max-gop=600 encoder="v4l2h265enc" max-bitrate=4200000 name=scb2 ! queue ! h265parse ! queue ! mp4mux ! queue ! filesink location=/opt/video_scb2.mp4 camsrc. ! video/x-raw,format=NV12_Q08C,width=640,height=480,framerate=15/1 ! queue ! tee name=ctrl_t ! queue ! scb1.sink_ctrl ctrl_t. ! queue ! scb2.sink_ctrlCopy to clipboard
## CPU 和 GPU 中的 MJPEG 视频编码
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
对于 MJPEG 编码，如果硬件不可用，则需要 CPU 和 GPU 的支持。该用例包含对 16 通道 1080p 2fps 视频进行编码的能力。
Note: Dragonwing IQ-9075 和 Dragonwing IQ-8275 目前不支持 MJPEG 视频编码。
### 前提条件
关于 MJPEG 编码，需要 CPU/GPU 支持 1080p@2fps。
在 Linux 主机的终端中，运行用例之前设置以下环境变量：
export XDG_RUNTIME_DIR=/dev/socket/westonCopy to clipboard
export WAYLAND_DISPLAY=wayland-1Copy to clipboard
在目标设备上运行以下用例。
### YUV 文件 1920 × 1080@30 → 16 × JPEG-ENC → AVI 文件
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg1.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg2.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg3.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg4.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg5.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg6.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg7.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg8.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg9.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg10.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg11.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg12.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg13.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg14.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg15.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg16.aviCopy to clipboard
### YUV 文件 1920 × 1080@30 → 12 × JPEG-ENC → AVI 文件和 1920 × 1080@30 AVI → 12 × JPEG-DEC > JPEG
gst-launch-1.0 -e filesrc location=/opt/mjpeg.avi ! avidemux ! queue ! jpegdec ! multifilesink location=/opt/mjpeg1_%d.jpeg max-files=1 &
gst-launch-1.0 -e filesrc location=/opt/mjpeg.avi ! avidemux ! queue ! jpegdec ! multifilesink location=/opt/mjpeg2_%d.jpeg max-files=1 &
gst-launch-1.0 -e filesrc location=/opt/mjpeg.avi ! avidemux ! queue ! jpegdec ! multifilesink location=/opt/mjpeg3_%d.jpeg max-files=1 &
gst-launch-1.0 -e filesrc location=/opt/mjpeg.avi ! avidemux ! queue ! jpegdec ! multifilesink location=/opt/mjpeg4_%d.jpeg max-files=1 &
gst-launch-1.0 -e filesrc location=/opt/mjpeg.avi ! avidemux ! queue ! jpegdec ! multifilesink location=/opt/mjpeg5_%d.jpeg max-files=1 &
gst-launch-1.0 -e filesrc location=/opt/mjpeg.avi ! avidemux ! queue ! jpegdec ! multifilesink location=/opt/mjpeg6_%d.jpeg max-files=1 &
gst-launch-1.0 -e filesrc location=/opt/mjpeg.avi ! avidemux ! queue ! jpegdec ! multifilesink location=/opt/mjpeg7_%d.jpeg max-files=1 &
gst-launch-1.0 -e filesrc location=/opt/mjpeg.avi ! avidemux ! queue ! jpegdec ! multifilesink location=/opt/mjpeg8_%d.jpeg max-files=1 &
gst-launch-1.0 -e filesrc location=/opt/mjpeg.avi ! avidemux ! queue ! jpegdec ! multifilesink location=/opt/mjpeg9_%d.jpeg max-files=1 &
gst-launch-1.0 -e filesrc location=/opt/mjpeg.avi ! avidemux ! queue ! jpegdec ! multifilesink location=/opt/mjpeg10_%d.jpeg max-files=1 &
gst-launch-1.0 -e filesrc location=/opt/mjpeg.avi ! avidemux ! queue ! jpegdec ! multifilesink location=/opt/mjpeg11_%d.jpeg max-files=1 &
gst-launch-1.0 -e filesrc location=/opt/mjpeg.avi ! avidemux ! queue ! jpegdec ! multifilesink location=/opt/mjpeg12_%d.jpeg max-files=1 &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg1.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg2.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg3.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg4.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg5.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg6.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg7.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg8.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg9.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg10.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg11.avi &
gst-launch-1.0 -e filesrc location=/opt/1920_1080.yuv ! videoparse width=1920 height=1080 format=nv12 framerate=2/1 ! jpegenc ! avimux ! filesink location=/opt/mjpeg12.aviCopy to clipboard
## 启用 24 个端到端并发视频会话
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
运行从文件中获取并发送到显示器的 24 个并行且分辨率为 1080p 流的用例。每个流显示在屏幕上的不同位置。
Note: 这些用例在 QCS6490 和 IQ-8275 上不支持。
在目标设备上运行以下用例。
### H.264–24 会话解码
ulimit -n 4096 && gst-launch-1.0 -e qtivcomposer name=mix sink_0::position="<0, 0>" sink_0::dimensions="<240, 270>" \
sink_1::position="<240, 0>" sink_1::dimensions="<240, 270>" \
sink_2::position="<480, 0>" sink_2::dimensions="<240, 270>" \
sink_3::position="<720, 0>" sink_3::dimensions="<240, 270>" \
sink_4::position="<960, 0>" sink_4::dimensions="<240, 270>" \
sink_5::position="<1200, 0>" sink_5::dimensions="<240, 270>" \
sink_6::position="<1440, 0>" sink_6::dimensions="<240, 270>" \
sink_7::position="<1680, 0>" sink_7::dimensions="<240, 270>" \
sink_8::position="<0, 270>" sink_8::dimensions="<240, 270>" \
sink_9::position="<240, 270>" sink_9::dimensions="<240, 270>" \
sink_10::position="<480, 270>" sink_10::dimensions="<240, 270>" \
sink_11::position="<720, 270>" sink_11::dimensions="<240, 270>" \
sink_12::position="<960, 270>" sink_12::dimensions="<240, 270>" \
sink_13::position="<1200, 270>" sink_13::dimensions="<240, 270>" \
sink_14::position="<1440, 270>" sink_14::dimensions="<240, 270>" \
sink_15::position="<1680, 270>" sink_15::dimensions="<240, 270>" \
sink_16::position="<0, 540>" sink_16::dimensions="<240, 270>" \
sink_17::position="<240, 540>" sink_17::dimensions="<240, 270>" \
sink_18::position="<480, 540>" sink_18::dimensions="<240, 270>" \
sink_19::position="<720, 540>" sink_19::dimensions="<240, 270>" \
sink_20::position="<960, 540>" sink_20::dimensions="<240, 270>" \
sink_21::position="<1200, 540>" sink_21::dimensions="<240, 270>" \
sink_22::position="<1440, 540>" sink_22::dimensions="<240, 270>" \
sink_23::position="<1680, 540>" sink_23::dimensions="<240, 270>" \
mix. ! fpsdisplaysink text-overlay=true video-sink="waylandsink fullscreen=true" -v \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix.Copy to clipboard
### H.265–24 会话解码
ulimit -n 4096 && gst-launch-1.0 -e qtivcomposer name=mix sink_0::position="<0, 0>" sink_0::dimensions="<240, 270>" \
sink_1::position="<240, 0>" sink_1::dimensions="<240, 270>" \
sink_2::position="<480, 0>" sink_2::dimensions="<240, 270>" \
sink_3::position="<720, 0>" sink_3::dimensions="<240, 270>" \
sink_4::position="<960, 0>" sink_4::dimensions="<240, 270>" \
sink_5::position="<1200, 0>" sink_5::dimensions="<240, 270>" \
sink_6::position="<1440, 0>" sink_6::dimensions="<240, 270>" \
sink_7::position="<1680, 0>" sink_7::dimensions="<240, 270>" \
sink_8::position="<0, 270>" sink_8::dimensions="<240, 270>" \
sink_9::position="<240, 270>" sink_9::dimensions="<240, 270>" \
sink_10::position="<480, 270>" sink_10::dimensions="<240, 270>" \
sink_11::position="<720, 270>" sink_11::dimensions="<240, 270>" \
sink_12::position="<960, 270>" sink_12::dimensions="<240, 270>" \
sink_13::position="<1200, 270>" sink_13::dimensions="<240, 270>" \
sink_14::position="<1440, 270>" sink_14::dimensions="<240, 270>" \
sink_15::position="<1680, 270>" sink_15::dimensions="<240, 270>" \
sink_16::position="<0, 540>" sink_16::dimensions="<240, 270>" \
sink_17::position="<240, 540>" sink_17::dimensions="<240, 270>" \
sink_18::position="<480, 540>" sink_18::dimensions="<240, 270>" \
sink_19::position="<720, 540>" sink_19::dimensions="<240, 270>" \
sink_20::position="<960, 540>" sink_20::dimensions="<240, 270>" \
sink_21::position="<1200, 540>" sink_21::dimensions="<240, 270>" \
sink_22::position="<1440, 540>" sink_22::dimensions="<240, 270>" \
sink_23::position="<1680, 540>" sink_23::dimensions="<240, 270>" \
mix. ! fpsdisplaysink text-overlay=false video-sink="waylandsink fullscreen=true" -v \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix. \
filesrc location=/opt/FlyingBirdFlock_1920x1080_30fps_HEVC_7862Kbps_withAudio.mp4 ! qtdemux ! h265parse ! v4l2h265dec capture-io-mode=4 output-io-mode=4 ! video/x-raw, format=NV12 ! mix.Copy to clipboard
### AV1–24 会话解码
Note: 此用例在 Ubuntu Server 上不受支持。
ulimit -n 4096 && gst-launch-1.0 -e qtivcomposer name=mix sink_0::position="<0, 0>" sink_0::dimensions="<240, 270>" \
sink_1::position="<240, 0>" sink_1::dimensions="<240, 270>" \
sink_2::position="<480, 0>" sink_2::dimensions="<240, 270>" \
sink_3::position="<720, 0>" sink_3::dimensions="<240, 270>" \
sink_4::position="<960, 0>" sink_4::dimensions="<240, 270>" \
sink_5::position="<1200, 0>" sink_5::dimensions="<240, 270>" \
sink_6::position="<1440, 0>" sink_6::dimensions="<240, 270>" \
sink_7::position="<1680, 0>" sink_7::dimensions="<240, 270>" \
sink_8::position="<0, 270>" sink_8::dimensions="<240, 270>" \
sink_9::position="<240, 270>" sink_9::dimensions="<240, 270>" \
sink_10::position="<480, 270>" sink_10::dimensions="<240, 270>" \
sink_11::position="<720, 270>" sink_11::dimensions="<240, 270>" \
sink_12::position="<960, 270>" sink_12::dimensions="<240, 270>" \
sink_13::position="<1200, 270>" sink_13::dimensions="<240, 270>" \
sink_14::position="<1440, 270>" sink_14::dimensions="<240, 270>" \
sink_15::position="<1680, 270>" sink_15::dimensions="<240, 270>" \
sink_16::position="<0, 540>" sink_16::dimensions="<240, 270>" \
sink_17::position="<240, 540>" sink_17::dimensions="<240, 270>" \
sink_18::position="<480, 540>" sink_18::dimensions="<240, 270>" \
sink_19::position="<720, 540>" sink_19::dimensions="<240, 270>" \
sink_20::position="<960, 540>" sink_20::dimensions="<240, 270>" \
sink_21::position="<1200, 540>" sink_21::dimensions="<240, 270>" \
sink_22::position="<1440, 540>" sink_22::dimensions="<240, 270>" \
sink_23::position="<1680, 540>" sink_23::dimensions="<240, 270>" \
mix. ! fpsdisplaysink text-overlay=false video-sink="waylandsink fullscreen=true" -v \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix. \
filesrc location=/opt/sjxbqm_1080p30fps_25_4882Kbps.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! mix.Copy to clipboard
### H.264–12 会话解码和编码
ulimit -n 4096 && gst-launch-1.0 -e filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! mp4mux ! filesink location=/opt/enc_1.mp4 \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! mp4mux ! filesink location=/opt/enc_2.mp4 \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! mp4mux ! filesink location=/opt/enc_3.mp4 \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! mp4mux ! filesink location=/opt/enc_4.mp4 \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! mp4mux ! filesink location=/opt/enc_5.mp4 \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! mp4mux ! filesink location=/opt/enc_6.mp4 \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! mp4mux ! filesink location=/opt/enc_7.mp4 \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! mp4mux ! filesink location=/opt/enc_8.mp4 \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! mp4mux ! filesink location=/opt/enc_9.mp4 \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! mp4mux ! filesink location=/opt/enc_10.mp4 \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! mp4mux ! filesink location=/opt/enc_11.mp4 \
filesrc location=/opt/1920_1080_h264_30fps_1min.mp4 ! qtdemux ! h264parse ! v4l2h264dec capture-io-mode=4 output-io-mode=4 ! v4l2h264enc capture-io-mode=4 output-io-mode=5 ! h264parse ! mp4mux ! filesink location=/opt/enc_12.mp4Copy to clipboard
### H264–24 会话编码
Note: Qualcomm Dragonwing^™^ RB3 Gen 2 支持最多 16 个会话编码。
gst-launch-1.0 -e filesrc blocksize=3133440 location=/tmp/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_0.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_1.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_2.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_3.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_4.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_5.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_6.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_7.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_8.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_9.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_10.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_11.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_12.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_13.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_14.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_15.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_16.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_17.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_18.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_19.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_20.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_21.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_22.h264 \
filesrc blocksize=3133440 location=/opt/dump_1080.yuv ! video/x-raw,format="NV12",width=1920,height=1080,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_23.h264Copy to clipboard
Qualcomm Dragonwing^™^ RB3 Gen 2 支持最多 16 个会话编码：
ulimit -n 4096 && gst-launch-1.0 -e filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_0.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_1.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_2.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_3.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_4.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_5.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_6.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_7.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_8.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_9.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_10.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_11.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_12.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_13.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_14.h264 \
filesrc blocksize=460800 location=/opt/dump_640_480.yuv ! video/x-raw,format="NV12",width=640,height=480,framerate=30/1,interlace-mode=progressive,colorimetry=bt601 ! v4l2h264enc capture-io-mode=4 output-io-mode=4 ! filesink location=/opt/enc_15.h264Copy to clipboard
## AV1 解码器和 4K VP9 解码器，240 fps 播放
Source: [https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html](https://docs.qualcomm.com/doc/80-70022-50SC/topic/camera-and-video-encode.html)
使用 AV1 和 VP9 解码器运行解码用例。这些用例仅适用于 Dragonwing IQ-9075。
在目标设备上运行以下用例。
### AV1 用例
Note: 以下用例在 Ubuntu Server 上不受支持。
- 3840 × 2160
gst-launch-1.0 -e filesrc location=/opt/SeaOtters_AV1_3840x2160_30_25.0Mbps_Main_no_audio_30.0.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! fpsdisplaysink video-sink="waylandsink fullscreen=true" -vCopy to clipboard
- 1920 × 1080
gst-launch-1.0 -e filesrc location=/opt/CaribouHerd_AV1_1920x1080_30_39.38Mbps_Main_AAC_34.472.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! fpsdisplaysink video-sink="waylandsink fullscreen=true" -vCopy to clipboard
- 1280 × 720
gst-launch-1.0 -e filesrc location=/opt/av1.mp4 ! qtdemux ! av1parse ! v4l2av1dec capture-io-mode=4 output-io-mode=4 ! fpsdisplaysink video-sink="waylandsink fullscreen=true" -vCopy to clipboard
### VP9 用例
3840 × 2160，240 fps
gst-launch-1.0 -e filesrc location=/opt/test_UHD_240FPS.ivf ! ivfparse ! queue ! v4l2vp9dec capture-io-mode=4 output-io-mode=4 ! video/x-raw,format=NV12 ! queue ! fpsdisplaysink text-overlay=false video-sink="fakesink" -vCopy to clipboard
Last Published: Nov 05, 2025
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