[FFmpeg-user] single frame duration with concat
lorenzo angeli
lorenzo.angeli at efestolab.uk
Fri Jun 5 10:24:00 CEST 2015
Hi Sorry for going back to this, but there's a behaviour I'm not quite
getting.
if I set the filter as : [in]trim=start_frame=0:end_frame=1[out]
it doesn't insert anything at the beginning.
if I set the filter as : [in]trim=start_frame=0:end_frame=2[out]
It does insert two frames at the beginning.... rather than 1 as I would
expect.
Is there anything I'm doing wrong here ?
Thanks.
L.
here the full output with end_frame=1:
ffmpeg -thread_queue_size 512 -hwaccel auto -threads 0 -y -start_number 1
-i /home/efesto/Desktop/frames/foo.%4d.exr -t 1 -loop 1 -i
/home/efesto/devel/efesto/efesto-submit/resource/profile/default.jpg -i
/home/efesto/devel/efesto/efesto-submit/resource/profile/efesto_logo.png
-c:v libx264 -crf 18 -preset slow -strict -2 -movflags faststart -pix_fmt
yuv420p -filter_complex
"[0:v]null,scale=1920:1080[clip];[1:v]null,scale=1920:1080[slate];[slate]trim=start_frame=0:end_frame=1[slate];[slate][clip]concat=n=2:v=1,
scale=1920:1080, fps=24.0, setdar=16:9[v]" -map [v]
/home/efesto/Desktop/out.mov
ffmpeg version N-72356-g8aa9853 Copyright (c) 2000-2015 the FFmpeg
developers
built with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
configuration: --prefix=/home/efesto/ffmpeg_build
--pkg-config-flags=--static
--extra-cflags=-I/home/efesto/ffmpeg_build/include
--extra-ldflags=-L/home/efesto/ffmpeg_build/lib --bindir=/home/efesto/bin
--enable-gpl --enable-libass --enable-libfreetype --enable-libmp3lame
--enable-libopus --enable-libtheora --enable-libvorbis --enable-libx264
--enable-nonfree
libavutil 54. 25.100 / 54. 25.100
libavcodec 56. 41.100 / 56. 41.100
libavformat 56. 33.101 / 56. 33.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 16.101 / 5. 16.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, image2, from '/home/efesto/Desktop/frames/foo.%4d.exr':
Duration: 00:00:02.00, start: 0.000000, bitrate: N/A
Stream #0:0: Video: exr, rgb48le, 1920x1080 [SAR 1:1 DAR 16:9], 25 fps,
25 tbr, 25 tbn, 25 tbc
Input #1, image2, from
'/home/efesto/devel/efesto/efesto-submit/resource/profile/default.jpg':
Duration: 00:00:00.04, start: 0.000000, bitrate: 52884 kb/s
Stream #1:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
1280x720 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
Input #2, png_pipe, from
'/home/efesto/devel/efesto/efesto-submit/resource/profile/efesto_logo.png':
Duration: N/A, bitrate: N/A
Stream #2:0: Video: png, rgba(pc), 200x221 [SAR 3543:3543 DAR 200:221],
25 tbr, 25 tbn, 25 tbc
[Parsed_setdar_8 @ 0x214dd20] num:den syntax is deprecated, please use
num/den or named options instead
[swscaler @ 0x21003a0] deprecated pixel format used, make sure you did set
range correctly
[libx264 @ 0x2149ca0] using SAR=1/1
[libx264 @ 0x2149ca0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
AVX AVX2 FMA3 LZCNT BMI2
[libx264 @ 0x2149ca0] profile High, level 5.0
[libx264 @ 0x2149ca0] 264 - core 142 r2389 956c8d8 - H.264/MPEG-4 AVC codec
- Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1
ref=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 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=2 b_bias=0 direct=3
weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=24 scenecut=40
intra_refresh=0 rc_lookahead=50 rc=crf mbtree=1 crf=18.0 qcomp=0.60 qpmin=0
qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mov, to '/home/efesto/Desktop/out.mov':
Metadata:
encoder : Lavf56.33.101
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p,
1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 24 fps, 12288 tbn, 24 tbc (default)
Metadata:
encoder : Lavc56.41.100 libx264
Stream mapping:
Stream #0:0 (exr) -> null
Stream #1:0 (mjpeg) -> null
setdar -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
[exr @ 0x4bc0700] Found more than one compression attribute.
Last message repeated 9 times
[exr @ 0x4bc0700] Found more than one compression attribute.itrate=N/A
Last message repeated 14 times
[exr @ 0x4bc0700] Found more than one compression attribute.itrate=N/A
Last message repeated 13 times
[exr @ 0x4bc0700] Found more than one compression attribute.itrate=N/A
Last message repeated 1 times
[mov @ 0x214f9c0] Starting second pass: moving the moov atom to the
beginning of the file
frame= 48 fps= 18 q=-1.0 Lsize= 61kB time=00:00:01.91 bitrate=
260.0kbits/s
video:59kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 2.240607%
[libx264 @ 0x2149ca0] frame I:1 Avg QP:11.93 size: 6381
[libx264 @ 0x2149ca0] frame P:20 Avg QP:17.14 size: 1537
[libx264 @ 0x2149ca0] frame B:27 Avg QP:22.48 size: 856
[libx264 @ 0x2149ca0] consecutive B-frames: 18.7% 12.5% 18.7% 50.0%
[libx264 @ 0x2149ca0] mb I I16..4: 66.1% 23.2% 10.7%
[libx264 @ 0x2149ca0] mb P I16..4: 0.1% 0.1% 0.3% P16..4: 1.2% 0.3%
0.7% 0.0% 0.0% skip:97.4%
[libx264 @ 0x2149ca0] mb B I16..4: 0.0% 0.0% 0.1% B16..8: 1.1% 0.4%
0.1% direct: 0.0% skip:98.3% L0:53.9% L1:43.8% BI: 2.3%
[libx264 @ 0x2149ca0] 8x8 transform intra:22.2% inter:10.1%
[libx264 @ 0x2149ca0] direct mvs spatial:81.5% temporal:18.5%
[libx264 @ 0x2149ca0] coded y,uvDC,uvAC intra: 5.1% 1.8% 1.5% inter: 0.2%
0.0% 0.0%
[libx264 @ 0x2149ca0] i16 v,h,dc,p: 37% 61% 2% 0%
[libx264 @ 0x2149ca0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 44% 36% 10% 9% 0%
0% 0% 0% 0%
[libx264 @ 0x2149ca0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 62% 15% 16% 2% 1%
1% 1% 2% 1%
[libx264 @ 0x2149ca0] i8c dc,h,v,p: 24% 73% 2% 0%
[libx264 @ 0x2149ca0] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x2149ca0] ref P L0: 59.8% 0.7% 17.1% 8.0% 5.3% 9.1%
[libx264 @ 0x2149ca0] ref B L0: 52.9% 24.3% 14.8% 8.0%
[libx264 @ 0x2149ca0] ref B L1: 85.1% 14.9%
[libx264 @ 0x2149ca0] kb/s:240.92
and this is for end_frame set to 2:
ffmpeg -thread_queue_size 512 -hwaccel auto -threads 0 -y -start_number 1
-i /home/efesto/Desktop/frames/foo.%4d.exr -t 1 -loop 1 -i
/home/efesto/devel/efesto/efesto-submit/resource/profile/default.jpg -i
/home/efesto/devel/efesto/efesto-submit/resource/profile/efesto_logo.png
-c:v libx264 -crf 18 -preset slow -strict -2 -movflags faststart -pix_fmt
yuv420p -filter_complex
"[0:v]null,scale=1920:1080[clip];[1:v]null,scale=1920:1080[slate];[slate]trim=start_frame=0:end_frame=2[slate];[slate][clip]concat=n=2:v=1,
scale=1920:1080, fps=24.0, setdar=16:9[v]" -map [v]
/home/efesto/Desktop/out.mov
ffmpeg version N-72356-g8aa9853 Copyright (c) 2000-2015 the FFmpeg
developers
built with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
configuration: --prefix=/home/efesto/ffmpeg_build
--pkg-config-flags=--static
--extra-cflags=-I/home/efesto/ffmpeg_build/include
--extra-ldflags=-L/home/efesto/ffmpeg_build/lib --bindir=/home/efesto/bin
--enable-gpl --enable-libass --enable-libfreetype --enable-libmp3lame
--enable-libopus --enable-libtheora --enable-libvorbis --enable-libx264
--enable-nonfree
libavutil 54. 25.100 / 54. 25.100
libavcodec 56. 41.100 / 56. 41.100
libavformat 56. 33.101 / 56. 33.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 16.101 / 5. 16.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, image2, from '/home/efesto/Desktop/frames/foo.%4d.exr':
Duration: 00:00:02.00, start: 0.000000, bitrate: N/A
Stream #0:0: Video: exr, rgb48le, 1920x1080 [SAR 1:1 DAR 16:9], 25 fps,
25 tbr, 25 tbn, 25 tbc
Input #1, image2, from
'/home/efesto/devel/efesto/efesto-submit/resource/profile/default.jpg':
Duration: 00:00:00.04, start: 0.000000, bitrate: 52884 kb/s
Stream #1:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
1280x720 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
Input #2, png_pipe, from
'/home/efesto/devel/efesto/efesto-submit/resource/profile/efesto_logo.png':
Duration: N/A, bitrate: N/A
Stream #2:0: Video: png, rgba(pc), 200x221 [SAR 3543:3543 DAR 200:221],
25 tbr, 25 tbn, 25 tbc
[Parsed_setdar_8 @ 0x28d1d20] num:den syntax is deprecated, please use
num/den or named options instead
[swscaler @ 0x28843a0] deprecated pixel format used, make sure you did set
range correctly
[libx264 @ 0x28cdca0] using SAR=1/1
[libx264 @ 0x28cdca0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
AVX AVX2 FMA3 LZCNT BMI2
[libx264 @ 0x28cdca0] profile High, level 5.0
[libx264 @ 0x28cdca0] 264 - core 142 r2389 956c8d8 - H.264/MPEG-4 AVC codec
- Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1
ref=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 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=2 b_bias=0 direct=3
weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=24 scenecut=40
intra_refresh=0 rc_lookahead=50 rc=crf mbtree=1 crf=18.0 qcomp=0.60 qpmin=0
qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mov, to '/home/efesto/Desktop/out.mov':
Metadata:
encoder : Lavf56.33.101
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p,
1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 24 fps, 12288 tbn, 24 tbc (default)
Metadata:
encoder : Lavc56.41.100 libx264
Stream mapping:
Stream #0:0 (exr) -> null
Stream #1:0 (mjpeg) -> null
setdar -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
[exr @ 0x33d9560] Found more than one compression attribute.
Last message repeated 7 times
[exr @ 0x33d9560] Found more than one compression attribute.itrate=N/A
Last message repeated 14 times
[exr @ 0x33d9560] Found more than one compression attribute.itrate=N/A
Last message repeated 13 times
[exr @ 0x33d9560] Found more than one compression attribute.itrate=N/A
Last message repeated 3 times
[mov @ 0x28d39c0] Starting second pass: moving the moov atom to the
beginning of the file
frame= 50 fps= 17 q=-1.0 Lsize= 233kB time=00:00:02.00 bitrate=
954.5kbits/s
video:232kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.582126%
[libx264 @ 0x28cdca0] frame I:2 Avg QP:13.96 size: 91258
[libx264 @ 0x28cdca0] frame P:20 Avg QP:18.39 size: 1499
[libx264 @ 0x28cdca0] frame B:28 Avg QP:22.54 size: 859
[libx264 @ 0x28cdca0] consecutive B-frames: 20.0% 12.0% 12.0% 56.0%
[libx264 @ 0x28cdca0] mb I I16..4: 39.0% 49.4% 11.6%
[libx264 @ 0x28cdca0] mb P I16..4: 0.1% 0.1% 0.2% P16..4: 2.1% 0.3%
0.2% 0.0% 0.0% skip:97.0%
[libx264 @ 0x28cdca0] mb B I16..4: 0.1% 0.0% 0.1% B16..8: 1.2% 0.4%
0.1% direct: 0.0% skip:98.2% L0:50.1% L1:48.0% BI: 1.9%
[libx264 @ 0x28cdca0] 8x8 transform intra:47.4% inter:20.0%
[libx264 @ 0x28cdca0] direct mvs spatial:82.1% temporal:17.9%
[libx264 @ 0x28cdca0] coded y,uvDC,uvAC intra: 46.8% 20.7% 7.0% inter: 0.2%
0.3% 0.0%
[libx264 @ 0x28cdca0] i16 v,h,dc,p: 44% 47% 3% 5%
[libx264 @ 0x28cdca0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 5% 6% 16% 16% 12%
12% 12% 9% 12%
[libx264 @ 0x28cdca0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 10% 10% 9% 10%
7% 9% 8% 12%
[libx264 @ 0x28cdca0] i8c dc,h,v,p: 7% 77% 9% 7%
[libx264 @ 0x28cdca0] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x28cdca0] ref P L0: 67.3% 0.2% 13.1% 6.0% 7.6% 5.8%
[libx264 @ 0x28cdca0] ref B L0: 51.9% 24.8% 15.9% 7.3%
[libx264 @ 0x28cdca0] ref B L1: 89.7% 10.3%
[libx264 @ 0x28cdca0] kb/s:908.33
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