ffmpeg_commands.sh

ffmpeg_commands.sh

#!/bin/sh

# Crete SMTPE bar video 
ffmpeg -f lavfi -i smptebars=duration=10:size=1920x1080:rate=30 smptebars.mp4


# raw h264 from file to HTTP server (in loop)
ffmpeg.exe -stream_loop -1 -re -i <filename>.mp4 -c:v libx264 \
             -vprofile baseline -b:v 600k -bufsize 600k -tune zerolatency -pix_fmt yuv420p \
             -an \
             -f rawvideo \
             http://<media_server_ip_address>:<media_server_port>/h264/my_stream
 
 # cut video starting from second 0 and get 300 s
 ffmpeg -ss 0 -i video.mp4 -t 300 -c copy video_out.mp4
 
 # Impress SMTPE timecode on mp4 (Windows)
 ffmpeg -i video.mp4 -vf "drawtext=fontfile='c\:\\Windows\\Fonts\\arial.ttf': timecode='10\:00\:00\:00': r=30: \x=(w-tw)/2: y=h-(2*lh): fontcolor=white: box=1: boxcolor=0x00000000@1" \
        -an -y \
        tc_video.mp4
 
 # Impress SMTPE timecode on mp4 (Ubuntu)
 ffmpeg -i video.mp4 -vf "drawtext=fontfile='/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf': timecode='10\:00\:00\:00': r=30: \x=(w-tw)/2: y=h-(2*lh): fontcolor=white: fontsize=48 : box=1: boxcolor=0x00000000@1" -an -y tc_video.mp4
        
 # Check media metadata
 ffprobe -report video.mp4
 
 # Change h264 profile
 ffmpeg -i input.mp4 -c:v libx264 -profile:v high -level:v 4.0 -c:a copy output.mp4