А я пока не могу решить проблему строка такая:
ffmpeg -y -i "VID_20131102_135902.3gp" -crf 15.0 -vcodec libx264 -acodec aac -strict experimental -ac 2 -ab 128k -coder 1 -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -me_method hex -subq 6 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -b_strategy 1 -threads 0 "VID_20131102_135902.mp4"
Выхлоп такой:
ffmpeg version 0.8.6-4:0.8.6-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav developers
built on Apr 2 2013 17:00:59 with gcc 4.6.3
*** THIS PROGRAM IS DEPRECATED ***
This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'VID_20131102_135902.3gp':
Metadata:
major_brand : 3gp4
minor_version : 768
compatible_brands: 3gp43gp6
creation_time : 2013-11-02 05:59:03
copyright :
copyright-eng :
Duration: 00:03:31.61, start: 0.000000, bitrate: 2050 kb/s
Stream #0.0(eng): Video: h263, yuv420p, 640x480 [PAR 1:1 DAR 4:3], 2035 kb/s, 29.43 fps, 29.97 tbr, 1k tbn, 29.97 tbc
Metadata:
creation_time : 2013-11-02 05:59:03
Stream #0.1(eng): Audio: amrnb, 8000 Hz, 1 channels, flt, 12 kb/s
Metadata:
creation_time : 2013-11-02 05:59:03
[buffer @ 0x91a7040] w:640 h:480 pixfmt:yuv420p
Incompatible sample format 'flt' for codec 'aac', auto-selecting format 's16'
[libx264 @ 0x91a5da0] using SAR=1/1
[libx264 @ 0x91a5da0] using cpu capabilities: MMX2 SSE2Fast FastShuffle SSEMisalign LZCNT
[libx264 @ 0x91a5da0] profile Main, level 3.0
[libx264 @ 0x91a5da0] 264 - core 120 r2151 a3f4407 - 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=0x1:0x111 me=hex subme=6 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=0 b_adapt=1 b_bias=0 direct=1 weightb=0 open_gop=1 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=15.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.41 aq=1:1.00
[aac @ 0x91a23c0] Too many bits per frame requested
Output #0, mp4, to 'VID_20131102_135902.mp4':
Stream #0.0(eng): Video: libx264, yuv420p, 640x480 [PAR 1:1 DAR 4:3], q=-1--1, 90k tbn, 29.97 tbc
Metadata:
creation_time : 2013-11-02 05:59:03
Stream #0.1(eng): Audio: libvo_aacenc, 8000 Hz, 2 channels, s16, 128 kb/s
Metadata:
creation_time : 2013-11-02 05:59:03
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Error while opening encoder for output stream #0.1 - maybe incorrect parameters such as bit_rate, rate, width or height
"[aac @ 0x91a23c0] Too many bits per frame requeste"
Каких ему бит пер фрэймс слишком много? Пробовал по разному, и у вообще убирать битрейт и другой ставить, всё одно, хелп.