Just tried transcoding, without any errors. See below. Is there a way to get a verbose output of openshot to see with which options it calls the different tools/libraries? cedric@PC-living:~/Videos/hb0/deel1$ ffmpeg -i MAH00029.MP4 -vcodec libx264 -s 352x288 -b 300k -r 10 -acodec ac3 -ar 22050 -ab 64k -f mp4 output.mp4 ffmpeg version 0.8.4-4:0.8.4-0ubuntu0.12.04.1, Copyright (c) 2000-2012 the Libav developers built on Nov 6 2012 16:50:25 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 'MAH00029.MP4': Metadata: major_brand : MSNV minor_version : 21364851 compatible_brands: MSNVmp42isom creation_time : 2012-06-05 19:31:22 Duration: 00:00:54.05, start: 0.000000, bitrate: 11028 kb/s Stream #0.0(und): Video: h264 (Main), yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 10870 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc Metadata: creation_time : 2012-06-05 19:31:22 Stream #0.1(und): Audio: aac, 48000 Hz, stereo, s16, 128 kb/s Metadata: creation_time : 2012-06-05 19:31:22 [buffer @ 0x9b804c0] w:1920 h:1080 pixfmt:yuv420p [scale @ 0x9b7a680] w:1920 h:1080 fmt:yuv420p -> w:352 h:288 fmt:yuv420p flags:0x4 Incompatible sample format 's16' for codec 'ac3', auto-selecting format 'flt' [libx264 @ 0x9b7f8c0] using SAR=16/11 [libx264 @ 0x9b7f8c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 [libx264 @ 0x9b7f8c0] profile Main, level 1.3 [libx264 @ 0x9b7f8c0] 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=7 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=1 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=10 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=300 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.25 aq=1:1.00 Output #0, mp4, to 'output.mp4': Metadata: major_brand : MSNV minor_version : 21364851 compatible_brands: MSNVmp42isom creation_time : 2012-06-05 19:31:22 encoder : Lavf53.21.0 Stream #0.0(und): Video: libx264, yuv420p, 352x288 [PAR 16:11 DAR 16:9], q=-1--1, 300 kb/s, 10 tbn, 10 tbc Metadata: creation_time : 2012-06-05 19:31:22 Stream #0.1(und): Audio: ac3, 22050 Hz, stereo, flt, 64 kb/s Metadata: creation_time : 2012-06-05 19:31:22 Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 Press ctrl-c to stop encoding Input stream #0.1 frame changed from rate:48000 fmt:s16 ch:2 to rate:48000 fmt:flt ch:2 Warning, using s16 intermediate sample format for resampling frame= 542 fps= 14 q=21.0 Lsize= 2412kB time=53.92 bitrate= 366.5kbits/s dup=0 drop=1078 video:1976kB audio:421kB global headers:0kB muxing overhead 0.625923% frame I:3 Avg QP:15.80 size: 16997 [libx264 @ 0x9b7f8c0] frame P:222 Avg QP:16.75 size: 6674 [libx264 @ 0x9b7f8c0] frame B:317 Avg QP:21.36 size: 1546 [libx264 @ 0x9b7f8c0] consecutive B-frames: 0.2% 50.9% 43.7% 5.2% [libx264 @ 0x9b7f8c0] mb I I16..4: 25.6% 0.0% 74.4% [libx264 @ 0x9b7f8c0] mb P I16..4: 0.6% 0.0% 4.2% P16..4: 50.4% 21.4% 15.3% 0.0% 0.0% skip: 8.1% [libx264 @ 0x9b7f8c0] mb B I16..4: 0.0% 0.0% 0.6% B16..8: 48.2% 11.1% 4.1% direct: 3.8% skip:32.2% L0:39.0% L1:45.0% BI:16.0% [libx264 @ 0x9b7f8c0] final ratefactor: 18.74 [libx264 @ 0x9b7f8c0] coded y,uvDC,uvAC intra: 87.3% 90.7% 76.8% inter: 27.1% 25.4% 7.9% [libx264 @ 0x9b7f8c0] i16 v,h,dc,p: 63% 5% 7% 25% [libx264 @ 0x9b7f8c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 37% 7% 12% 6% 8% 10% 5% 11% 5% [libx264 @ 0x9b7f8c0] i8c dc,h,v,p: 41% 9% 41% 9% [libx264 @ 0x9b7f8c0] Weighted P-Frames: Y:5.0% UV:0.5% [libx264 @ 0x9b7f8c0] ref P L0: 55.8% 7.2% 22.2% 14.3% 0.5% [libx264 @ 0x9b7f8c0] ref B L0: 78.9% 21.1% [libx264 @ 0x9b7f8c0] kb/s:298.56