On Sat, Jun 13, 2015 at 8:08 AM, Moritz Barsnick <[email protected]> wrote:
> Hi En, > > On Fri, Jun 12, 2015 at 14:23:24 -0400, En Figureo Canal wrote: > > Now, what other options are there using libx264, if any? > > Well, have you read my email? Why do I go to the trouble of writing > those things if you don't engage with it. > > E.g.: > > > > If you showed us the complete, uncut output, we could see what the > > > specs of your streams are and whether something is wrong. This way, > > > without more info, we don't even know which resolution your material > > > has. > > Have you shown us your uncut console output? > > And: > > > > - use a different preset (e.g. "-preset fast") > > > and experiment with both. > > > You could even copy the input stream, if its specs are sufficient. That > > > reduces CPU significantly. > > Have you tried these things? What have you experimented? If the "fast" > preset doesn't suffice, try "ultrafast". Honestly, there can be a large > CPU difference. (I have achieved 3x from "faster" to "ultrafast" with > SD TV material.) > > Another thing: Is your libx264 and ffmpeg compiled with proper yasm > support? > > Moritz > > A: Because it messes up the order in which people normally read text. > Q: Why is top-posting such a bad thing? > A: Top-posting. > Q: What is the most annoying thing in e-mail? > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > Thank you Moritz Barsnick for replying again and taking your time to help me out with my problem. I do read your emails, if I'm top posting please pardon me. Gmail input is what might be top posting. I experimented using "ultrafast" and indeed lowered the cpu stress to 50% which is a great improvement this is how I run the command: ffmpeg -re -i /video.mp4 -vcodec libx264 -s 640x360 -vb 1024k -crf 23 -preset ultrafast -pix_fmt yuv420p -maxrate 1256k -bufsize 1256k -ab 96k -f flv rtmp://ip/live/test And this is the output: ffmpeg version 2.5.4 Copyright (c) 2000-2015 the FFmpeg developers built on Apr 27 2015 21:49:23 with gcc 4.7 (Debian 4.7.2-5) configuration: --prefix=/root/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree libavutil 54. 15.100 / 54. 15.100 libavcodec 56. 13.100 / 56. 13.100 libavformat 56. 15.102 / 56. 15.102 libavdevice 56. 3.100 / 56. 3.100 libavfilter 5. 2.103 / 5. 2.103 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/video.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isommp42 creation_time : 2015-03-03 16:28:42 Duration: 01:41:30.90, start: 0.000000, bitrate: 712 kb/s Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 638 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default) Metadata: handler_name : VideoHandler Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 72 kb/s (default) Metadata: creation_time : 2015-03-03 16:29:33 handler_name : IsoMedia File Produced by Google, 5-11-2011 [libx264 @ 0x255e260] using SAR=1/1 [libx264 @ 0x255e260] using cpu capabilities: MMX2 SSE2Slow SlowCTZ [libx264 @ 0x255e260] profile Constrained Baseline, level 3.0 [libx264 @ 0x255e260] 264 - core 123 r2189 35cf912 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc_lookahead=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=1256 vbv_bufsize=1256 crf_max=0.0 nal_hrd=none ip_ratio=1.40 aq=0 Output #0, flv, to 'rtmp://69.64.49.252/live/test': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isommp42 encoder : Lavf56.15.102 Stream #0:0(und): Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 1024 kb/s, 29.97 fps, 1k tbn, 29.97 tbc (default) Metadata: handler_name : VideoHandler encoder : Lavc56.13.100 libx264 Stream #0:1(und): Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 44100 Hz, mono, fltp, 96 kb/s (default) Metadata: creation_time : 2015-03-03 16:29:33 handler_name : IsoMedia File Produced by Google, 5-11-2011 encoder : Lavc56.13.100 libmp3lame Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (aac (native) -> mp3 (libmp3lame)) _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
