Estou tentando mesclar dois vídeos com o modo de mesclagem múltipla. Mas eu tenho uma sobreposição verde no vídeo resultante.
Esta é uma imagem onde estão um quadro de cada vídeo de entrada e um quadro do vídeo resultante Composição
Eu executo esta linha de comando:
sudo ffmpeg -y -i video_top.avi -i video_background.mp4 -filter_complex "blend=all_mode=multiply" -f mp4 -vcodec libx264 out.mp4
Esta é a saída do ffmpeg:
built on Mar 20 2014 14:51:45 with gcc 4.7 (Ubuntu/Linaro 4.7.2-2ubuntu1)
configuration: --enable-gpl --enable-libass --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree --enable-version3
libavutil 52. 67.100 / 52. 67.100
libavcodec 55. 52.102 / 55. 52.102
libavformat 55. 34.101 / 55. 34.101
libavdevice 55. 11.100 / 55. 11.100
libavfilter 4. 3.100 / 4. 3.100
libswscale 2. 5.102 / 2. 5.102
libswresample 0. 18.100 / 0. 18.100
libpostproc 52. 3.100 / 52. 3.100
Input #0, avi, from 'video_top.avi':
Metadata:
encoder : Lavf54.29.104
Duration: 00:00:10.72, start: 0.000000, bitrate: 688 kb/s
Stream #0:0: Video: h264 (High) (H264 / 0x34363248), yuv420p, 704x576 [SAR 1:1 DAR 11:9], 682 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'video_background.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42mp41
creation_time : 2014-04-29 12:51:17
Duration: 00:00:08.90, start: 0.033333, bitrate: 3417 kb/s
Stream #1:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv), 704x576 [SAR 1:1 DAR 11:9], 3408 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc (default)
Metadata:
creation_time : 2014-04-29 12:51:17
handler_name : ?Mainconcept Video Media Handler
[libx264 @ 0x2e42660] using SAR=1/1
[libx264 @ 0x2e42660] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x2e42660] profile High, level 3.0
[libx264 @ 0x2e42660] 264 - core 142 r2 d6b4e63 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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 'out.mp4':
Metadata:
encoder : Lavf55.34.101
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 704x576 [SAR 1:1 DAR 11:9], q=-1--1, 12800 tbn, 25 tbc (default)
Stream mapping:
Stream #0:0 (h264) -> blend:top
Stream #1:0 (h264) -> blend:bottom
blend -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
frame= 268 fps=121 q=-1.0 Lsize= 732kB time=00:00:10.64 bitrate= 563.2kbits/s
video:728kB audio:0kB subtitle:0 data:0 global headers:0kB muxing overhead 0.539149%
[libx264 @ 0x2e42660] frame I:2 Avg QP:17.96 size: 35789
[libx264 @ 0x2e42660] frame P:77 Avg QP:21.68 size: 5552
[libx264 @ 0x2e42660] frame B:189 Avg QP:24.79 size: 1298
[libx264 @ 0x2e42660] consecutive B-frames: 1.1% 11.2% 10.1% 77.6%
[libx264 @ 0x2e42660] mb I I16..4: 30.7% 36.5% 32.7%
[libx264 @ 0x2e42660] mb P I16..4: 3.0% 2.6% 0.4% P16..4: 41.3% 14.4% 6.6% 0.0% 0.0% skip:31.7%
[libx264 @ 0x2e42660] mb B I16..4: 0.2% 0.1% 0.0% B16..8: 43.8% 2.8% 0.3% direct: 0.2% skip:52.5% L0:42.2% L1:56.1% BI: 1.7%
[libx264 @ 0x2e42660] 8x8 transform intra:40.7% inter:79.1%
[libx264 @ 0x2e42660] coded y,uvDC,uvAC intra: 48.9% 29.0% 8.3% inter: 7.1% 4.5% 0.1%
[libx264 @ 0x2e42660] i16 v,h,dc,p: 23% 19% 33% 26%
[libx264 @ 0x2e42660] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 15% 45% 3% 3% 3% 5% 3% 6%
[libx264 @ 0x2e42660] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 23% 19% 4% 3% 3% 7% 2% 7%
[libx264 @ 0x2e42660] i8c dc,h,v,p: 67% 15% 16% 1%
[libx264 @ 0x2e42660] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x2e42660] ref P L0: 67.4% 10.1% 17.0% 5.6%
[libx264 @ 0x2e42660] ref B L0: 91.6% 7.3% 1.1%
[libx264 @ 0x2e42660] ref B L1: 94.9% 5.1%
[libx264 @ 0x2e42660] kb/s:555.48
Eu não sei o que está errado, e usar outros modos de mesclagem gerou outros resultados ridículos, como ter uma sobreposição rosa no vídeo.
Sugestões serão bem apreciadas, muito obrigado.