Estou tentando converter um arquivo mkv e adicionar um logotipo de marca d'água a ele, mas tentei várias instruções diferentes, mas sempre falta o logotipo após 24 segundos do vídeo.
Aqui está o meu código:
ffmpeg \
-i RTed83e104ac4d98c46383630d733a3282.mkv \
-i RT894ce44c6ba84eb98300566adae4e7bf.mka \
-i logo_white.png \
-filter_complex "[2] scale=120:18 [ovr1], [0:v][ovr1]overlay=10:452" \
output.mp4
Por exemplo: link , você pode ver que a imagem desapareceu após 24 segundos.
O que estou fazendo de errado?
OUTPUT / LOGS :
ffmpeg \
-i RTed83e104ac4d98c46383630d733a3282.mkv \
-i RT894ce44c6ba84eb98300566adae4e7bf.mka \
-i logo_white.png \
-filter_complex "[2] scale=120:18 [ovr1], [0:v][ovr1]overlay=10:452" \
output.mp4
ffmpeg version 3.4.1 Copyright (c) 2000-2017 the FFmpeg developers
built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4.1 --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 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Input #0, matroska,webm, from 'RTed83e104ac4d98c46383630d733a3282.mkv':
Metadata:
encoder : GStreamer matroskamux version 1.8.1.1
creation_time : 2018-02-13T18:16:31.000000Z
Duration: 00:05:48.26, start: 1.456000, bitrate: 528 kb/s
Stream #0:0(eng): Video: h264 (Constrained Baseline), yuv420p(progressive), 640x480, SAR 1:1 DAR 4:3, 30 fps, 30 tbr, 1k tbn, 2k tbc (default)
Metadata:
title : Video
Input #1, matroska,webm, from 'RT894ce44c6ba84eb98300566adae4e7bf.mka':
Metadata:
encoder : GStreamer matroskamux version 1.8.1.1
creation_time : 2018-02-13T18:16:31.000000Z
Duration: 00:05:47.78, start: 1.421000, bitrate: 45 kb/s
Stream #1:0(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
Metadata:
title : Audio
Input #2, png_pipe, from 'logo_white.png':
Duration: N/A, bitrate: N/A
Stream #2:0: Video: png, rgba(pc), 600x90, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 (h264) -> overlay:main (graph 0)
Stream #2:0 (png) -> scale (graph 0)
overlay (graph 0) -> Stream #0:0 (libx264)
Stream #1:0 -> #0:1 (opus (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x7fc62308c400] using SAR=1/1
[libx264 @ 0x7fc62308c400] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x7fc62308c400] profile High, level 3.0
[libx264 @ 0x7fc62308c400] 264 - core 148 r2795 aaa9aa8 - 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=6 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 'output.mp4':
Metadata:
encoder : Lavf57.83.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
encoder : Lavc57.107.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
title : Audio
encoder : Lavc57.107.100 aac
Past duration 0.609993 too large 0kB time=00:00:01.73 bitrate= 0.2kbits/s dup=7 drop=0 speed=3.43x
Last message repeated 2 times
frame=10449 fps=152 q=-1.0 Lsize= 11658kB time=00:05:48.20 bitrate= 274.3kbits/s dup=151 drop=0 speed=5.06x
video:5860kB audio:5422kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.338063%
[libx264 @ 0x7fc62308c400] frame I:42 Avg QP:13.16 size: 32061
[libx264 @ 0x7fc62308c400] frame P:2657 Avg QP:18.79 size: 1347
[libx264 @ 0x7fc62308c400] frame B:7750 Avg QP:22.91 size: 138
[libx264 @ 0x7fc62308c400] consecutive B-frames: 0.9% 0.5% 0.5% 98.1%
[libx264 @ 0x7fc62308c400] mb I I16..4: 13.1% 64.6% 22.3%
[libx264 @ 0x7fc62308c400] mb P I16..4: 0.3% 0.7% 0.1% P16..4: 10.4% 3.3% 1.7% 0.0% 0.0% skip:83.5%
[libx264 @ 0x7fc62308c400] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 8.0% 0.1% 0.0% direct: 0.0% skip:91.7% L0:41.7% L1:56.6% BI: 1.7%
[libx264 @ 0x7fc62308c400] 8x8 transform intra:63.1% inter:64.4%
[libx264 @ 0x7fc62308c400] coded y,uvDC,uvAC intra: 75.8% 77.6% 61.0% inter: 1.3% 2.0% 0.2%
[libx264 @ 0x7fc62308c400] i16 v,h,dc,p: 17% 13% 37% 33%
[libx264 @ 0x7fc62308c400] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 17% 25% 5% 4% 4% 5% 6% 9%
[libx264 @ 0x7fc62308c400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 18% 17% 8% 5% 5% 5% 5% 7%
[libx264 @ 0x7fc62308c400] i8c dc,h,v,p: 57% 20% 18% 5%
[libx264 @ 0x7fc62308c400] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7fc62308c400] ref P L0: 65.0% 9.6% 16.7% 8.8%
[libx264 @ 0x7fc62308c400] ref B L0: 85.7% 12.4% 1.9%
[libx264 @ 0x7fc62308c400] ref B L1: 93.5% 6.5%
[libx264 @ 0x7fc62308c400] kb/s:137.80
[aac @ 0x7fc623086600] Qavg: 5304.135
As entradas de origem do WebRTC geralmente são desleixadas e podem alterar os parâmetros no meio do fluxo, resultando em surpresas. No seu caso, uma solução preguiçosa poderia ser fazer o loop da imagem de sobreposição:
ffmpeg \
-i RTed83e104ac4d98c46383630d733a3282.mkv \
-i RT894ce44c6ba84eb98300566adae4e7bf.mka \
-loop 1 -i logo_white.png \
-filter_complex "[2] scale=120:18 [ovr1], [0:v][ovr1]overlay=10:452:shortest=1" \
output.mp4
Eu consegui fazer o que estava procurando, mas tive que fazer isso em etapas. Eu acho que meu problema foi porque meus vídeos são da WebRTC como @LordNeckbeard explicado abaixo. Aqui está minha solução se alguém no futuro precisar:
# convert student video + audio
ffmpeg \
-i RT0dcbc54f85d17eb6f7922f58f7b12079.mkv \
-i RTb0ccec59e2119a15642b7cd772db843e.mka \
student.mp4
# convert instructor video + audio
ffmpeg \
-i RTed83e104ac4d98c46383630d733a3282.mkv \
-i RT894ce44c6ba84eb98300566adae4e7bf.mka \
instructor.mp4
# add watermark to instructor_video
ffmpeg \
-i instructor.mp4 \
-i logo_white.png \
-filter_complex "[1] scale=120:18 [ovr1], [0:v][ovr1]overlay=10:452" \
instructor_with_logo.mp4
# Final - Include student video
ffmpeg \
-i instructor_with_logo.mp4 \
-i student.mp4 \
-filter_complex "[1:v]setpts=PTS-STARTPTS+24/TB[v1]; \
[v1] scale=120:90 [student], [0:v][student]overlay=510:380:enable='between(t,24,36)'" \
final.mp4
Tags ffmpeg