Saya perlu mengkonversi beberapa file mp4 ke format lain (saya memilih avi: mungkin ada yang lebih baik, saran selamat datang). Saya mencoba menggunakan ffmpeg tetapi mendapat pesan usang sehingga saya menggunakan avconv, tetapi sekali lagi mungkin ada alat yang lebih baik.
Inilah yang saya gunakan: avconv -i e2.mp4 -vtag libxvid -b:v 1500k e2.avi
Ini memberi saya output berikut:
avconv version 0.8.9-6:0.8.9-0ubuntu0.13.10.1, Copyright (c) 2000-2013 the Libav developers
built on Nov 9 2013 19:09:46 with gcc 4.8.1
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x1c677a0] multiple edit list entries, a/v desync might occur, patch welcome
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'e2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf53.21.1
media_type : 10
copyright : � 2014 British Broadcasting Corporation, all rights reserved
title : Episode 2
artist : BBC Four
album_artist : BBC TV
album : The Bridge: Series 2
composer : BBC iPlayer
genre : Drama
comment : Online, four individuals in masks use signs to claim responsibility for the plague.
date : 2014-01-04T22:00:00Z
track : 2
disc : 2
description : Online, four individuals in masks use signs to claim responsibility for the plague.
show : The Bridge: Series 2
episode_id : s02e02
season_number : 2
episode_sort : 2
network : BBC Four
Duration: 00:57:38.16, start: 0.000000, bitrate: 2399 kb/s
Stream #0.0(und): Video: h264 (High), yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 2298 kb/s, 25 fps, 25 tbr, 1k tbn, 50 tbc
Stream #0.1(und): Audio: aac, 48000 Hz, stereo, s16, 93 kb/s
[buffer @ 0x1c69260] w:1280 h:720 pixfmt:yuv420p
Incompatible sample format 's16' for codec 'ac3', auto-selecting format 'flt'
[ac3 @ 0x1c2a160] invalid bit rate
Output #0, avi, to 'e2.avi':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf53.21.1
media_type : 10
copyright : � 2014 British Broadcasting Corporation, all rights reserved
title : Episode 2
artist : BBC Four
album_artist : BBC TV
album : The Bridge: Series 2
composer : BBC iPlayer
genre : Drama
comment : Online, four individuals in masks use signs to claim responsibility for the plague.
date : 2014-01-04T22:00:00Z
track : 2
disc : 2
description : Online, four individuals in masks use signs to claim responsibility for the plague.
show : The Bridge: Series 2
episode_id : s02e02
season_number : 2
episode_sort : 2
network : BBC Four
Stream #0.0(und): Video: mpeg4, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], q=2-31, 1500 kb/s, 90k tbn, 25 tbc
Stream #0.1(und): Audio: ac3, 48000 Hz, stereo, flt, 200 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> mpeg4)
Stream #0:1 -> #0:1 (aac -> ac3)
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height
Saya juga mendapatkan file e2.avi yang kosong. Saya belum pernah menggunakan avconv sebelumnya - apa cara yang benar untuk melakukan ini? Saya dapat memposting rincian lebih lanjut jika diperlukan.
Terima kasih sebelumnya!
man avconv
.