dönüştürme .mov .mp4 ve ben bir .mp4 film Alfa Kanalı ile Quicktime bir .mov dosyayı dönüştürmek için çalışıyorum FFMPEG

Question

kullanarak alfa kanalı tutmak. FFMPEG kullanıyorum ve videoyu bir .mp4 videosuna başarılı bir şekilde dönüştürebilirim, ancak alfa kanalını kaybediyorum.
ffmpeg -i BLUE_LOWER_THIRD.mov -vcodec libx264 -vpre medium blue_lower_third.mp4

Ben Ubuntu 11.10 bu çalıştırıyorum: Burada

ben çalıştırıyorum komuttur. İşte benim ffmpeg kurulumu hakkında bilgiler.

ffmpeg version 0.7.3-4:0.7.3-0ubuntu0.11.10.1, Copyright (c) 2000-2011 the Libav developers 
    built on Jan 4 2012 16:08:51 with gcc 4.6.1 
    configuration: --extra-version='4:0.7.3-0ubuntu0.11.10.1' --arch=amd64 --prefix=/usr --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static 
    avutil  configuration: --extra-version='4:0.7.3ubuntu0.11.10.1' --arch=amd64 --prefix=/usr --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-vaapi --enable-libopenjpeg --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdirac --enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid --enable-libvo-aacenc --enable-version3 --enable-libvo-amrwbenc --enable-version3 --enable-libdc1394 --enable-shared --disable-static 
    avcodec  configuration: --extra-version='4:0.7.3ubuntu0.11.10.1' --arch=amd64 --prefix=/usr --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-vaapi --enable-libopenjpeg --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdirac --enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid --enable-libvo-aacenc --enable-version3 --enable-libvo-amrwbenc --enable-version3 --enable-libdc1394 --enable-shared --disable-static 
    avformat configuration: --extra-version='4:0.7.3ubuntu0.11.10.1' --arch=amd64 --prefix=/usr --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-vaapi --enable-libopenjpeg --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdirac --enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid --enable-libvo-aacenc --enable-version3 --enable-libvo-amrwbenc --enable-version3 --enable-libdc1394 --enable-shared --disable-static 
    libavutil 51. 7. 0/51. 7. 0 
    libavcodec 53. 6. 0/53. 6. 0 
    libavformat 53. 3. 0/53. 3. 0 
    libavdevice 53. 0. 0/53. 0. 0 
    libavfilter 2. 4. 0/2. 4. 0 
    libswscale 2. 0. 0/2. 0. 0 
    libpostproc 52. 0. 0/52. 0. 0 

Mp4 dosyasında alfa kanalı olması mümkün mü? Eğer öyleyse, FFMPEG ile nasıl yapıyorsunuz?

Düzenleme

: Bu komutu çalıştırarak çıkışı olmaz.

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'BLUE_LOWER_THIRD.mov': 
    Metadata: 
    major_brand  : qt 
    minor_version : 537199360 
    compatible_brands: qt 
    creation_time : 2010-12-21 10:36:51 
    Duration: 00:00:15.00, start: 0.000000, bitrate: 8050 kb/s 
    Stream #0.0(eng): Video: png, bgra, 1920x1080, 8043 kb/s, PAR 1920:1920 DAR 16:9, 30 fps, 30 tbr, 30 tbn, 30 tbc 
    Metadata: 
     creation_time : 2010-12-21 10:36:51 
    Stream #0.1(eng): Data: tmcd/0x64636D74, 0 kb/s 
    Metadata: 
     creation_time : 2010-12-21 10:39:48 
File 'blue_lower_third.mp4' already exists. Overwrite ? [y/N] y 
Incompatible pixel format 'bgra' for codec 'libx264', auto-selecting format 'yuv420p' 
[buffer @ 0x7e3d80] w:1920 h:1080 pixfmt:bgra 
[ffsink @ 0x7edda0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out' 
[scale @ 0x7fc480] w:1920 h:1080 fmt:bgra -> w:1920 h:1080 fmt:yuv420p flags:0x4 
[libx264 @ 0x7fcf20] using SAR=1/1 
[libx264 @ 0x7fcf20] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle Cache64 
[libx264 @ 0x7fcf20] profile High, level 4.0 
[libx264 @ 0x7fcf20] 264 - core 116 r2042 178455c - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - 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=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=abr mbtree=1 bitrate=200 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.41 aq=1:1.00 
Output #0, mp4, to 'blue_lower_third.mp4': 
    Metadata: 
    major_brand  : qt 
    minor_version : 537199360 
    compatible_brands: qt 
    creation_time : 2010-12-21 10:36:51 
    encoder   : Lavf53.3.0 
    Stream #0.0(eng): Video: libx264, yuv420p, 1920x1080 [PAR 1920:1920 DAR 16:9], q=0-69, 200 kb/s, 30 tbn, 30 tbc 
    Metadata: 
     creation_time : 2010-12-21 10:36:51 
Stream mapping: 
    Stream #0.0 -> #0.0 
Press ctrl-c to stop encoding 
frame= 450 fps= 11 q=9.0 Lsize=  83kB time=14.93 bitrate= 45.7kbits/s its/s  
video:75kB audio:0kB global headers:0kB muxing overhead 10.287784% 
frame I:2  Avg QP:18.30 size: 2584 
[libx264 @ 0x7fcf20] frame P:118 Avg QP:16.22 size: 310 
[libx264 @ 0x7fcf20] frame B:330 Avg QP:16.75 size: 106 
[libx264 @ 0x7fcf20] consecutive B-frames: 1.8% 0.9% 1.3% 96.0% 
[libx264 @ 0x7fcf20] mb I I16..4: 49.7% 50.0% 0.3% 
[libx264 @ 0x7fcf20] mb P I16..4: 0.5% 0.0% 0.0% P16..4: 0.3% 0.0% 0.0% 0.0%  0.0% skip:99.0% 
[libx264 @ 0x7fcf20] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.3% 0.0% 0.0% direct: 0.0% skip:99.6% L0:37.2% L1:62.6% BI: 0.2% 
[libx264 @ 0x7fcf20] final ratefactor: 9.32 
[libx264 @ 0x7fcf20] 8x8 transform intra:38.0% inter:56.1% 
[libx264 @ 0x7fcf20] coded y,uvDC,uvAC intra: 0.9% 4.2% 2.9% inter: 0.0% 0.1% 0.0% 
[libx264 @ 0x7fcf20] i16 v,h,dc,p: 64% 32% 1% 3% 
[libx264 @ 0x7fcf20] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 0% 2% 97% 0% 1% 0% 0% 0% 0% 
[libx264 @ 0x7fcf20] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 5% 60% 23% 2% 6% 1% 1% 1% 2% 
[libx264 @ 0x7fcf20] i8c dc,h,v,p: 86% 13% 1% 0% 
[libx264 @ 0x7fcf20] Weighted P-Frames: Y:0.0% UV:0.0% 
[libx264 @ 0x7fcf20] ref P L0: 79.4% 2.1% 13.2% 5.2% 
[libx264 @ 0x7fcf20] ref B L0: 61.1% 37.7% 1.2% 
[libx264 @ 0x7fcf20] ref B L1: 92.3% 7.7% 
[libx264 @ 0x7fcf20] kb/s:40.85 

Answer 1

Bu:

Uyumsuz piksel biçimi 'bgr bir' alfa en kaybolmasını nerede kodek 'libx264', otomatik seçme biçimi 'YUV420P'

içindir. Açıkça, hepsi x264 kitaplığı tarafından desteklenmediği halde, alfa bilgilerini içeren farklı bir piksel biçimi belirtmeyi deneyin.

Answer 2

Eğer ilgili sorununuza yeni bazı şey öğrenebilir bu blogger'da Thi cevabı http://creativemediaplus.blogspot.com/2015/05/codec-which-support-also-alpha-channels.html ziyaret ediniz.