[FFmpeg-user] Optimization
Marcus Lim
drakeskywing at gmail.com
Fri Nov 2 01:05:43 EET 2018
Thanks for all the suggestions,
So after some reading, the img2 demuxer won't work since the images I have
are all of different sizes, and according to the documentation it says that
they need to be of the same size (still tried it, but the images became cut
off) as well I couldn't figure out how to get the timings done right.
The concat demuxer actually had the same issue as the img2 demuxer.
For reference to the output from ffmpeg:
ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
> built with Apple LLVM version 9.1.0 (clang-902.0.39.2)
> configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.2 --enable-shared
> --enable-pthreads --enable-version3 --enable-hardcoded-tables
> --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl
> --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl
> --enable-videotoolbox --disable-lzma
> libavutil 56. 14.100 / 56. 14.100
> libavcodec 58. 18.100 / 58. 18.100
> libavformat 58. 12.100 / 58. 12.100
> libavdevice 58. 3.100 / 58. 3.100
> libavfilter 7. 16.100 / 7. 16.100
> libavresample 4. 0. 0 / 4. 0. 0
> libswscale 5. 1.100 / 5. 1.100
> libswresample 3. 1.100 / 3. 1.100
> libpostproc 55. 1.100 / 55. 1.100
> [jpeg_pipe @ 0x7feed9802800] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feed9802800] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #0, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf8912937006552540487.tmp':
> Duration: N/A, bitrate: N/A
> Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 4032x3024 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feed9807800] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feed9807800] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #1, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf5351513282402727883.tmp':
> Duration: N/A, bitrate: N/A
> Stream #1:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 3024x4032 [SAR 1:1 DAR 3:4], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feedb002400] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feedb002400] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #2, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf9204204500598689609.tmp':
> Duration: N/A, bitrate: N/A
> Stream #2:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 3024x4032 [SAR 1:1 DAR 3:4], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feedb001800] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feedb001800] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #3, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf1241593939921003895.tmp':
> Duration: N/A, bitrate: N/A
> Stream #3:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 3024x4032 [SAR 1:1 DAR 3:4], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feeda009a00] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feeda009a00] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #4, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf6231405065182432206.tmp':
> Duration: N/A, bitrate: N/A
> Stream #4:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 4032x3024 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feed9009200] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feed9009200] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #5, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf4783563520441940155.tmp':
> Duration: N/A, bitrate: N/A
> Stream #5:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 4032x3024 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feedc007a00] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feedc007a00] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #6, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf823726872837129805.tmp':
> Duration: N/A, bitrate: N/A
> Stream #6:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 3264x2448 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feedd003e00] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feedd003e00] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #7, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf4148893068919936811.tmp':
> Duration: N/A, bitrate: N/A
> Stream #7:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 3024x4032 [SAR 1:1 DAR 3:4], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feedb005400] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feedb005400] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #8, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf6815991692415841819.tmp':
> Duration: N/A, bitrate: N/A
> Stream #8:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 3024x4032 [SAR 1:1 DAR 3:4], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feeda00b800] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feeda00b800] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #9, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf553287365250808111.tmp':
> Duration: N/A, bitrate: N/A
> Stream #9:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 3264x2448 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feed980c200] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feed980c200] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #10, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf6763129487770212040.tmp':
> Duration: N/A, bitrate: N/A
> Stream #10:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 4032x3024 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feedb801200] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feedb801200] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #11, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf4160943340255327277.tmp':
> Duration: N/A, bitrate: N/A
> Stream #11:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 4032x3024 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feed9009e00] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feed9009e00] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #12, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf8834606975865492644.tmp':
> Duration: N/A, bitrate: N/A
> Stream #12:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 3024x4032 [SAR 1:1 DAR 3:4], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feedb013c00] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feedb013c00] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #13, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf9160476045329137307.tmp':
> Duration: N/A, bitrate: N/A
> Stream #13:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 3264x2448 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
> [jpeg_pipe @ 0x7feeda00c400] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7feeda00c400] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #14, jpeg_pipe, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf8917976550433767102.tmp':
> Duration: N/A, bitrate: N/A
> Stream #14:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 3024x4032 [SAR 1:1 DAR 3:4], 25 tbr, 25 tbn, 25 tbc
> [mp3 @ 0x7feed980ba00] Estimating duration from bitrate, this may be
> inaccurate
> Input #15, mp3, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf6379741644027890621.tmp':
> Metadata:
> title : Indo Rock2
> artist : DL Sounds
> album : Royalty Free Music
> date : 2014
> comment : (C) dl-sounds.com
> genre : Other
> Duration: 00:00:34.81, start: 0.000000, bitrate: 255 kb/s
> Stream #15:0: Audio: mp3, 44100 Hz, stereo, fltp, 256 kb/s
> File 'fcd2b1a9-f3c8-4cdc-8355-51c08b088ee3.mp4' already exists. Overwrite
> ? [y/N] y
> Stream mapping:
> Stream #0:0 (mjpeg) -> scale (graph 0)
> Stream #1:0 (mjpeg) -> scale (graph 0)
> Stream #2:0 (mjpeg) -> scale (graph 0)
> Stream #3:0 (mjpeg) -> scale (graph 0)
> Stream #4:0 (mjpeg) -> scale (graph 0)
> Stream #5:0 (mjpeg) -> scale (graph 0)
> Stream #6:0 (mjpeg) -> scale (graph 0)
> Stream #7:0 (mjpeg) -> scale (graph 0)
> Stream #8:0 (mjpeg) -> scale (graph 0)
> Stream #9:0 (mjpeg) -> scale (graph 0)
> Stream #10:0 (mjpeg) -> scale (graph 0)
> Stream #11:0 (mjpeg) -> scale (graph 0)
> Stream #12:0 (mjpeg) -> scale (graph 0)
> Stream #13:0 (mjpeg) -> scale (graph 0)
> Stream #14:0 (mjpeg) -> scale (graph 0)
> format (graph 0) -> Stream #0:0 (libx264)
> Stream #15:0 -> #0:1 (mp3 (mp3float) -> aac (native))
> Press [q] to stop, [?] for help
> [swscaler @ 0x7feed981f200] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feed9087e00] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feeda07ec00] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feed90e5a00] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feed9142800] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feed9191400] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feed91ea400] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feed923dc00] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feed929b800] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feed92f5600] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feedb09ce00] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feeda0d3000] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feed9887c00] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feed98e5800] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feed9933800] deprecated pixel format used, make sure you
> did set range correctly
> [swscaler @ 0x7feed9087e00] Warning: data is not aligned! This can lead to
> a speed loss
> [libx264 @ 0x7feedb014e00] using SAR=1/1
> [libx264 @ 0x7feedb014e00] using cpu capabilities: MMX2 SSE2Fast SSSE3
> SSE4.2 AVX
> [libx264 @ 0x7feedb014e00] profile High, level 3.2
> [libx264 @ 0x7feedb014e00] 264 - core 152 r2854 e9a5903 - 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=12
> lookahead_threads=2 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 'fcd2b1a9-f3c8-4cdc-8355-51c08b088ee3.mp4':
> Metadata:
> encoder : Lavf58.12.100
> Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661),
> yuv420p(progressive), 1080x1080 [SAR 1:1 DAR 1:1], q=-1--1, 25 fps, 12800
> tbn, 25 tbc (default)
> Metadata:
> encoder : Lavc58.18.100 libx264
> Side data:
> cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
> Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo,
> fltp, 128 kb/s
> Metadata:
> encoder : Lavc58.18.100 aac
> frame= 1500 fps= 12 q=-1.0 Lsize= 3148kB time=00:01:00.00 bitrate=
> 429.8kbits/s speed=0.466x
> video:2148kB audio:949kB subtitle:0kB other streams:0kB global headers:0kB
> muxing overhead: 1.628573%
> [libx264 @ 0x7feedb014e00] frame I:14 Avg QP:12.68 size:137636
> [libx264 @ 0x7feedb014e00] frame P:376 Avg QP:14.98 size: 585
> [libx264 @ 0x7feedb014e00] frame B:1110 Avg QP:12.69 size: 47
> [libx264 @ 0x7feedb014e00] consecutive B-frames: 1.1% 0.0% 2.4% 96.5%
> [libx264 @ 0x7feedb014e00] mb I I16..4: 26.6% 46.1% 27.3%
> [libx264 @ 0x7feedb014e00] mb P I16..4: 0.0% 0.1% 0.1% P16..4: 0.9%
> 0.1% 0.1% 0.0% 0.0% skip:98.7%
> [libx264 @ 0x7feedb014e00] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.1%
> 0.0% 0.0% direct: 0.0% skip:99.9% L0:17.4% L1:82.6% BI: 0.0%
> [libx264 @ 0x7feedb014e00] 8x8 transform intra:46.9% inter:74.4%
> [libx264 @ 0x7feedb014e00] coded y,uvDC,uvAC intra: 73.6% 73.4% 63.9%
> inter: 0.1% 0.2% 0.0%
> [libx264 @ 0x7feedb014e00] i16 v,h,dc,p: 87% 4% 4% 4%
> [libx264 @ 0x7feedb014e00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 24% 13% 6%
> 7% 6% 10% 7% 14%
> [libx264 @ 0x7feedb014e00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 26% 7% 6%
> 8% 7% 12% 6% 11%
> [libx264 @ 0x7feedb014e00] i8c dc,h,v,p: 52% 24% 15% 9%
> [libx264 @ 0x7feedb014e00] Weighted P-Frames: Y:0.0% UV:0.0%
> [libx264 @ 0x7feedb014e00] ref P L0: 90.9% 4.3% 4.0% 0.8%
> [libx264 @ 0x7feedb014e00] ref B L0: 71.5% 28.5%
> [libx264 @ 0x7feedb014e00] ref B L1: 98.5% 1.5%
> [libx264 @ 0x7feedb014e00] kb/s:293.20
> [aac @ 0x7feedb02a400] Qavg: 574.226
Now I should probably share a requirement that I realize I hadn't included
before, that being that the reason I am using a complex filter, is because
I sometimes incorporate simple fade transitions between the images using
the fade filter.
I should note as well, when I tried to use all the files in, so ffmpeg -i
file.txt, it meant the complex filter couldn't find reference to the
individual streams.
I did find https://trac.ffmpeg.org/wiki/Slideshow and followed it's example
using the concat demuxer, much to my horror it resulted in using approx 3.2
gig which I think we can all agree was simply stupid levels.
Below is the command and output, though I should note I cancelled it since
the 3.2 gig is a touch above the budget I would allow to run on my server
for a single process:
ffmpeg -f concat -i file.txt -stream_loop -1 -t 60 -i
> ed141148-9b79-494b-a26d-f5c84535eeaf6379741644027890621.tmp
> fcd2b1a9-f3c8-4cdc-8355-51c08b088ee3.mp4
> ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
> built with Apple LLVM version 9.1.0 (clang-902.0.39.2)
> configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.2 --enable-shared
> --enable-pthreads --enable-version3 --enable-hardcoded-tables
> --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl
> --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl
> --enable-videotoolbox --disable-lzma
> libavutil 56. 14.100 / 56. 14.100
> libavcodec 58. 18.100 / 58. 18.100
> libavformat 58. 12.100 / 58. 12.100
> libavdevice 58. 3.100 / 58. 3.100
> libavfilter 7. 16.100 / 7. 16.100
> libavresample 4. 0. 0 / 4. 0. 0
> libswscale 5. 1.100 / 5. 1.100
> libswresample 3. 1.100 / 3. 1.100
> libpostproc 55. 1.100 / 55. 1.100
> [jpeg_pipe @ 0x7fcdbc800600] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> Input #0, concat, from 'file.txt':
> Duration: N/A, start: 0.000000, bitrate: N/A
> Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
> 3024x4032 [SAR 1:1 DAR 3:4], 25 tbr, 25 tbn, 25 tbc
> [mp3 @ 0x7fcdbd009200] Estimating duration from bitrate, this may be
> inaccurate
> Input #1, mp3, from
> 'ed141148-9b79-494b-a26d-f5c84535eeaf6379741644027890621.tmp':
> Metadata:
> title : Indo Rock2
> artist : DL Sounds
> album : Royalty Free Music
> date : 2014
> comment : (C) dl-sounds.com
> genre : Other
> Duration: 00:00:34.81, start: 0.000000, bitrate: 255 kb/s
> Stream #1:0: Audio: mp3, 44100 Hz, stereo, fltp, 256 kb/s
> File 'fcd2b1a9-f3c8-4cdc-8355-51c08b088ee3.mp4' already exists. Overwrite
> ? [y/N] y
> Stream mapping:
> Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
> Stream #1:0 -> #0:1 (mp3 (mp3float) -> aac (native))
> Press [q] to stop, [?] for help
> [libx264 @ 0x7fcdbb01d200] using SAR=1/1
> [libx264 @ 0x7fcdbb01d200] using cpu capabilities: MMX2 SSE2Fast SSSE3
> SSE4.2 AVX
> [jpeg_pipe @ 0x7fcdbb011400] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [libx264 @ 0x7fcdbb01d200] profile High, level 6.0
> [libx264 @ 0x7fcdbb01d200] 264 - core 152 r2854 e9a5903 - 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=12
> lookahead_threads=2 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 'fcd2b1a9-f3c8-4cdc-8355-51c08b088ee3.mp4':
> Metadata:
> encoder : Lavf58.12.100
> Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj420p(pc,
> progressive), 3024x4032 [SAR 1:1 DAR 3:4], q=-1--1, 25 fps, 12800 tbn, 25
> tbc
> Metadata:
> encoder : Lavc58.18.100 libx264
> Side data:
> cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
> Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo,
> fltp, 128 kb/s
> Metadata:
> encoder : Lavc58.18.100 aac
> [jpeg_pipe @ 0x7fcdbb011400] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [swscaler @ 0x7fcdbe89e400] deprecated pixel format used, make sure you
> did set range correctly
> [jpeg_pipe @ 0x7fcdbd027600] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7fcdbe800e00] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7fcdbd801200] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7fcdbc82d400] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7fcdbf009200] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7fcdbe00d200] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7fcdbf008000] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7fcdbd809800] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!
> [jpeg_pipe @ 0x7fcdbb15d600] Format jpeg_pipe detected only with low score
> of 25, misdetection possible!163x
> ^C^C^CReceived > 3 system signals, hard exiting
Right now I'm running into a bit of a brick wall. I noticed an earlier post
mentioning the use of a loop filter which would mean i wouldn't have to use
-loop which I assume is where my overhead is coming from, but I have yet to
be able to get an example to work.
Any thoughts feedbacks, and examples of things I could do would be ever so
helpful
On Fri, 2 Nov 2018 at 07:57, Paul B Mahol <onemda at gmail.com> wrote:
> On 11/1/18, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
> > 2018-11-01 21:36 GMT+01:00, Paul B Mahol <onemda at gmail.com>:
> >> On 11/1/18, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
> >>> 2018-11-01 3:31 GMT+01:00, Marcus Lim <drakeskywing at gmail.com>:
> >>>> Hey all,
> >>>> New to the list and trying to get my head around ffmpeg a bit still.
> >>>> So I am using ffmpeg to create slideshows out of individual images,
> with
> >>>> an
> >>>> audio backing track (usually mp3), and then encoding as MP4 (video is
> >>>> h264
> >>>> and audio is acc), but for some reason the process is taking up to
> 1.4Gb
> >>>> of
> >>>> memory which is blowing me away.
> >>>> Now I am using a complex filter to achieve this, with multiple inputs,
> >>>> and
> >>>> example of my command is below:
> >>>>
> >>>> ffmpeg \
> >>>> -loop 1 -t 4 -i
> >>>> test/ed141148-9b79-494b-a26d-f5c84535eeaf8912937006552540487.tmp \
> >>>> -loop 1 -t 4 -i
> >>>> test/ed141148-9b79-494b-a26d-f5c84535eeaf5351513282402727883.tmp \
> >>>
> >>> I suggest you put the files names in a text file and use the concat
> >>> demuxer.
> >>>
> >>> An alternative is to rename the files as tmp-01 to tmp-15 and use:
> >>> ffmpeg -i tmp-02%d
> >>>
> >>> Both solutions will not have the increased memory usage and
> >>> will significantly simplify your command line.
> >>
> >> How it is supposed to loop for 4 seconds with above solutions?
> >
> > The concat demuxer supports the duration command, the img2
> > demuxer an input frame rate.
> > Do you believe one of them will not work?
>
> Didn't know. It should work for images too, if not report a bug.
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