Dvr: support h265 flv fragments. v6.0.162 v7.0.24

[chundonglinlin]

1. Issue
   When segmenting H.265 encoded FLV files using a DVR, the system does not create FLV segments at regular intervals as specified by the dvr_wait_keyframe configuration.

2. Configure dvr.segment.conf

# the config for srs to dvr in segment mode
# @see https://ossrs.net/lts/zh-cn/docs/v4/doc/dvr
# @see full.conf for detail config.

listen              1935;
max_connections     1000;
daemon              off;
srs_log_tank        console;
vhost __defaultVhost__ {
    dvr {
        enabled      on;
        dvr_path     ./objs/nginx/html/[app]/[stream].[timestamp].flv;
        dvr_plan     segment;
        dvr_duration    30;
        dvr_wait_keyframe       on;
    }
}

3. Stream Push Testing

FFmpeg Stream Push

Domestic FFmpeg version (codecId=12)

hevc-12-ffmpeg -stream_loop -1 -re -i 264_aac.flv -c:v libx265 -preset fast -b:v 2000k -maxrate 2000k -bufsize 4000k -bf 0 -c:a aac -b:a 128k -ar 44100 -ac 2 -f flv rtmp://localhost/live/livestream

FFmpeg version 6.0 or higher (supports enhanced RTMP)

ffmpeg -stream_loop -1 -re -i 264_aac.flv -c:v libx265 -preset fast -b:v 2000k -maxrate 2000k -bufsize 4000k -bf 0 -c:a aac -b:a 128k -ar 44100 -ac 2 -f flv rtmp://localhost/live/livestream

OBS streaming (version 30.0 or above supports enhanced RTMP)

4. Playback Testing

SRS player (supports both enhanced RTMP and codec=12 FLV)

http://127.0.0.1:8080/players/srs_player.html

Domestic ffplay (supports codec=12 FLV)

hevc-12-ffplay http://127.0.0.1:8080/live/livestream.1740311867638.flv

ffplay (versions above ffmpeg 6.0 support enhanced RTMP)

ffplay http://127.0.0.1:8080/live/livestream.1740311867638.flv

---

TRANS_BY_GPT4

---

Co-authored-by: Haibo Chen [email protected]
Co-authored-by: john [email protected]
Co-authored-by: winlin [email protected]