How do I split a rtsp stream in multiple files with remux? #989
Description
Overview
I'm trying to split a rtsp stream in multiple files. I was successfull doing it but the files that came out have a time length issue, it increments the last file length on his own. I'm doing 10 seconds cuts for each file, the first file gets 10 seconds but the second file gets 20 seconds time length with 10 seconds of content, the third get 30 seconds file with last 10 seconds of data only.
Here is my code:
import time
from os import path
import av
inputContainer = av.open("rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mp4", "r")
while True:
dateString = time.time()
start = time.time()
videoFilePath = f"output{dateString}.avi"
in_stream = inputContainer.streams.video[0]
output_time = 0
with av.open(f"{videoFilePath}", "w") as output:
out_stream = output.add_stream(template=in_stream)
for packet in inputContainer.demux(in_stream):
if packet.dts is None:
continue
packet.stream = out_stream
packet.pts = packet.pts - output_time
packet.dts = packet.dts - output_time
output.mux(packet)
cur_time = time.time() - start
if cur_time >= 10:
output_time = packet.dts
break
Expected behavior
Each file produced should be 10 seconds on metadata.
Actual behavior
The files gets larger time length, if you open the file it shows no image up until the last 10 seconds of the file.
Investigation
I've tried to change pts and dts timers but it changes nothing.
I also tried to look for changing the metadada in container or the stream, but found nothing