On Fri, Mar 3, 2017 at 1:06 AM, Moritz Barsnick <[email protected]> wrote:
> On Thu, Mar 02, 2017 at 18:39:16 -0700, JD wrote: > > Hi all, should horizontal flipping be as slow as this: > > frame=27067 fps= 12 q=28.0 size= 143993kB time=00:18:06.27 > > bitrate=1085.9kbits/s dup=0 drop=35 speed=0.47x > > How do these numbers compare to when you omit the filter? > > > the command was: > > $ ~/bin/ffmpeg.d/ffmpeg -i video_mnt13.mp4 -vf "hflip" -y > > video_mnt13-hflip-m1B6z-54q_0.mp4 > > ffmpeg version 3.2.4-static http://johnvansickle.com/ffmpeg/ Copyright > (c) > > 2000-2017 the FFmpeg developers built with gcc 5.4.1 (Debian 5.4.1-5) > > 20170205 > > The complete, uncut console output is much more practical for us. > > > how can I speed it up? (I thought that flipping should not need > > transcoding)??? > > Using filters in ffmpeg always requires re-encoding. Furthermore, I'm > not aware that "mp4" (we don't even know which [input] codec you used, > because you didn't show us the complete, uncut console output), or > rather the common codecs such as mpeg4 of h264, support lossless > rotation or flipping. JPEG (and as such probably Motion JPEG) does > allow that under certain constraints. ffmpeg doesn't support it for > those though, and if it did, that would be a so-called "bitstream > filter" ("-bsf:v"). > > Moritz > Here is what u r asking for: ffmpeg version 3.2.4-static http://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2017 the FFmpeg developers built with gcc 5.4.1 (Debian 5.4.1-5) 20170205 configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-5 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.101 / 57. 56.101 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'mnt13-.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 creation_time : 2016-12-24T10:40:35.000000Z encoder : Lavf56.1.0 Duration: 02:13:31.51, start: 0.000000, bitrate: 1136 kb/s Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 1005 kb/s, 24.95 fps, 24.92 tbr, 90k tbn, 49.90 tbc (default) Metadata: creation_time : 2016-12-24T10:40:35.000000Z handler_name : VideoHandler Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default) Metadata: creation_time : 2016-12-24T10:40:35.000000Z handler_name : SoundHandler [libx264 @ 0x4063360] using SAR=1/1 [libx264 @ 0x4063360] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64 [libx264 @ 0x4063360] profile High, level 3.1 [libx264 @ 0x4063360] 264 - core 148 r333 90a61ec - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=3 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=24 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 'mnt13--hflip-m1B6z-54q_0.mp4': _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
