ffmpeg的测试命令

# 设置log等级
ffmpeg -y -loglevel 48
# 软编码
ffmpeg -y -f v4l2 -channel 0 -video_size 640x480 -i /dev/video10 \
-r 60 -b:v 1500k -c:v libx264 test.mp4

•可用的bit流 ：ffmpeg -bsfs
•可用的编解码器：ffmpeg -codecs
•可用的解码器：ffmpeg -decoders
•可用的编码器：ffmpeg -encoders
•可用的过滤器：ffmpeg -filters
•可用的视频格式：ffmpeg -formats
•可用的声道布局：ffmpeg -layouts
•可用的license：ffmpeg -L
•可用的像素格式：ffmpeg -pix_fmts
•可用的协议：ffmpeg -protocols
ffmpeg -decoders | grep "^ V"
ffmpeg -encoders | grep "^ V"
#  播放rtsp地址

rtsp://172.25.81.135:554/user=admin&password=&channel=1&stream=0.dsp? 是rtsp播放地址

ffplay -vcodec h264_rkmpp -rtsp_transport tcp "rtsp://172.25.81.135:554/user=admin&password=&channel=1&stream=0.dsp?"

自己搭建的rtsp流播放

RTSP 简易服务器

https://github.com/aler9/rtsp-simple-server

./rtsp-simple-server   运行服务器

ffmpeg -re -i Forrest_Gump_IMAX.mp4 -c copy -f rtsp rtsp://localhost:8554/test_stream   推流

ffplay -rtsp_transport tcp "rtsp://172.25.80.136:8554/test_stream"  播放

gstreamer的测试命令

# gst-launch 播放视频（h264）
gst-launch-1.0 filesrc location=/home/kylin/Forrest_Gump_IMAX.mp4 \
! qtdemux ! h264parse ! mppvideodec ! rkximagesink
# 播放测试视频
gst-launch-1.0 -v videotestsrc pattern=snow ! video/x-raw,\
width=1280,heigh=720 ! rkximagesink
# uridecodebin 播放视频
gst-launch-1.0 uridecodebin \
uri=file:///home/kylin/Forrest_Gump_IMAX.mp4 ! rkximagesink
# 用mpph264enc编码测试视频为ts
gst-launch-1.0 videotestsrc num-buffers=512 ! \
video/x-raw,format=NV12,width=1920,height= 1080,framerate=30/1 ! \
queue ! mpph264enc ! queue ! h264parse ! mpegtsmux ! \
filesink location=/home/kylin/2k.ts
# 编码h264
gst-launch-1.0 -v uridecodebin \
uri=file:///home/kylin/Forrest_Gump_IMAX.mp4 ! queue ! \
videoconvert ! mpph264enc ! mpegtsmux ! filesink location=out.h264
# 编码vp8
gst-launch-1.0 -v uridecodebin \
uri=file:///home/kylin/Forrest_Gump_IMAX.mp4 ! queue ! \
videoconvert ! mppvp8enc ! qtmux ! filesink location=out.vp8
# 播放
gst-launch-1.0 uridecodebin uri=file:///home/kylin/out.vp8 ! \
rkximagesink
gst-launch-1.0 uridecodebin uri=file:///home/kylin/out.h264 ! \
rkximagesink
# jpeg编解码
gst-launch-1.0 -v videotestsrc ! \
"video/x-raw,width=1920,height=1080" ! queue ! jpegenc ! queue ! \
jpegparse ! queue ! mppjpegdec ! rkximagesink
gst-launch-1.0 -v videotestsrc ! \
"video/x-raw,width=1920,height=1080" ! queue ! mppjpegenc ! \
queue ! jpegparse ! queue ! jpegdec ! xvimagesink
#  播放rtsp地址
rtsp://172.25.81.135:554/user=admin&password=&channel=1&stream=0.dsp? 是rtsp播放地址

gst-launch-1.0 playbin uri="rtsp://172.25.81.135:554/user=admin&password=&channel=1&stream=0.dsp?"