Changes between Initial Version and Version 1 of Ticket #7976, comment 4


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Timestamp:
Jul 2, 2019, 8:43:23 PM (13 months ago)
Author:
clem
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  • Ticket #7976, comment 4

    initial v1  
    1 Replying to [comment:2 stevenliu]:
    2 > Hi can you leave the mpd link here, let me test it.
    3 
    4 Sorry, I don't have a public source, I was just re-muxing a rtsp stream generated with ffmpeg.
    5 
    6 The crash is related to the window expiration. With the rtsp source using 90 frame gops, the segfault happened after ~48s, which is the window size (3*16=48). Reducing the gop size to 60 frames, it would crash after 30s.
    7 
    8 Here is the ffmpeg command to generate the mpd:
    9 {{{
    10 ffmpeg \
    11         -nostats -hide_banner \
    12         -buffer_size 1572864 \
    13         -i rtsp://192.168.100.100/video1 \
    14         -probesize 32 \
    15         -c:v copy \
    16         -an \
    17         -copyts \
    18         -fflags nobuffer \
    19         -flags +global_header+low_delay \
    20         -seg_duration 0.5 \
    21         -window_size 16 \
    22         -extra_window_size 2 \
    23         -use_template 0 \
    24         -use_timeline 0 \
    25         -init_seg_name 'live-init-stream$RepresentationID$.m4s' \
    26         -media_seg_name 'live-$RepresentationID$-$Number%06d$-$Time%09d$.m4s' \
    27         -hls_playlist 1 \
    28         -streaming 1 \
    29         -dash_segment_type mp4 \
    30         -f dash test.mpd
    31 }}}
    32 
     1trac was slow to respond and I ended up double posting, sorry.