Hello,
Unless there's an option I missed, ffmpeg doesn't display an ETA.
From this outline, is there a way to guess how long the process will take (and possibly, how big the output file will be)?
Thank you.
Code:Input #0, mpeg, from 'full.mpg': Duration: 02:01:17.76, start: 0.226767, bitrate: 9183 kb/s Stream #0:0[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc [libx264 @ 0x561c33570200] using SAR=404/405 [libx264 @ 0x561c33570200] using cpu capabilities: MMX2 SSE2Slow SlowCTZ [libx264 @ 0x561c33570200] profile High, level 3.0 [libx264 @ 0x561c33570200] 264 - core 148 r2748 97eaef2 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=2 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to 'full.mp4': Metadata: encoder : Lavf57.56.101 Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 720x404 [SAR 404:405 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc57.64.101 libx264 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1 Stream #0:1: Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 128 kb/s Metadata: encoder : Lavc57.64.101 aac Stream mapping: Stream #0:1 -> #0:0 (mpeg2video (native) -> h264 (libx264)) Stream #0:0 -> #0:1 (ac3 (native) -> aac (native)) Press [q] to stop, [?] for help frame= 62 fps= 26 q=28.0 size= 76kB time=00:00:02.27 bitrate= 273.7kbits/s speed=0.972x
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Last edited by yetanotherlogin; 1st Jul 2019 at 07:19.
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Duration: 02:01:17.76
[...]
frame= 62 fps= 26 q=28.0 size= 76kB time=00:00:02.27 bitrate= 273.7kbits/s speed=0.972x
I.e. at 0.972x speed with 02:01:17.76-00:00:02.27 remaining that would be ~118 minutes to wait.
76kB size for 00:00:02.27, then expected size for 02:01:17.76 should be 243661 kB.
Of course this early in the encoding process the estimates will be very inaccurate. -
Thanks much for the infos.
Ultimately, on a cheap Acer desktop powered by an AMD Athlon 64 X2 CPU, it took 3 hours to recompress that 8,354MB MPEG2 file, and the output file size is 287MB using the following options:
Code:ffmpeg -i "full.mpg" -vf scale=720:404 -pix_fmt yuv420p -c:a aac -b:a 128k -ac 2 -ar 44100 -threads 2 -f mp4 full.mp4
Last edited by yetanotherlogin; 1st Jul 2019 at 07:21.
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