Hi guys, there is a way to probe a fragmented mp4 available through FTP faster? The operation is almost instant on a local file, while it takes almost 1 minute with a very good internet connection.
This test file is a 3 hours video file made with ffmpeg in fragmented mode, every fragment is 1 min length, so there are 180 fragments. ffprobe reads every fragment doing a range http request, using the grep and wc I saw that there are 183 http requests in total. Reducing the number of fragments is not an option since sadly the file should be playable almost realtime with a moderate delay (and 1 min is already enough) the version of ffprobe is HEAD, here is the complete console output, the test file should be public to everyone: time ../ffmpeg-head/ffprobe http://wycutters.wyscout.com/box/argentina/velez_test_g1234567.mp4 ffprobe version N-96711-gdd81f73946 Copyright (c) 2007-2020 the FFmpeg developers built with Apple LLVM version 10.0.1 (clang-1001.0.46.4) configuration: --disable-videotoolbox --disable-audiotoolbox --enable-libx264 --enable-libfdk-aac --enable-nonfree --enable-gpl libavutil 56. 39.100 / 56. 39.100 libavcodec 58. 68.100 / 58. 68.100 libavformat 58. 38.100 / 58. 38.100 libavdevice 58. 9.103 / 58. 9.103 libavfilter 7. 75.100 / 7. 75.100 libswscale 5. 6.100 / 5. 6.100 libswresample 3. 6.100 / 3. 6.100 libpostproc 55. 6.100 / 55. 6.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ' http://wycutters.wyscout.com/box/argentina/velez_test_g1234567.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1iso6mp41 artist : 171 encoder : Lavf58.20.100 genre : fast Duration: 03:00:00.03, start: 0.000000, bitrate: 6265 kb/s Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuvj420p(pc, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 6132 kb/s, 24.97 fps, 59.94 tbr, 12800 tbn, 50 tbc (default) Metadata: handler_name : VideoHandler Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default) Metadata: handler_name : SoundHandler real 1m2.094s user 0m0.206s sys 0m0.169s Trace of the content-range calls: ffprobe -v trace http://wycutters.wyscout.com/box/argentina/velez_test_g1234567.mp4 2>&1 | grep Content-Range [http @ 0x55a4d8addaa0] header='Content-Range: bytes 0-8458597672/8458597673' [http @ 0x55a4d8addaa0] header='Content-Range: bytes 46834645-8458597672/8458597673' [http @ 0x55a4d8addaa0] header='Content-Range: bytes 93336173-8458597672/8458597673' [http @ 0x55a4d8addaa0] header='Content-Range: bytes 140460071-8458597672/8458597673' [http @ 0x55a4d8addaa0] header='Content-Range: bytes 187703091-8458597672/8458597673' [http @ 0x55a4d8addaa0] header='Content-Range: bytes 234834646-8458597672/8458597673' [http @ 0x55a4d8addaa0] header='Content-Range: bytes 281564338-8458597672/8458597673' [http @ 0x55a4d8addaa0] header='Content-Range: bytes 328890982-8458597672/8458597673' [http @ 0x55a4d8addaa0] header='Content-Range: bytes 375821706-8458597672/8458597673' [http @ 0x55a4d8addaa0] header='Content-Range: bytes 422895067-8458597672/8458597673' [... total of 183 calls, included the one I've not cut ... ] [http @ 0x55a4d8addaa0] header='Content-Range: bytes 8458590761-8458597672/8458597673' [http @ 0x55a4d8addaa0] header='Content-Range: bytes 40154-8458597672/8458597673' [http @ 0x55a4d8addaa0] header='Content-Range: bytes 45874897-8458597672/8458597673' -- Bye, Gabry _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
