[Peter Robertson]

My bad. The error appears to have been caused by the fact that I was using Text Edit to edit my .sh file–not a good idea. Saving the script with a different editor fixed the problem.

FYI–the syntax for ffmpeg has changed since I used this script. With newer versions of ffmpeg you will need to use

do ffmpeg -ss $i -t 10 -i YUWinter.mp4 -acodec copy -vcodec copy index_$i.mov

the ‘-acodec copy -vcodec copy’ needs to be placed AFTER the output file.

Peter

Pedro

[Peter Robertson]

This seems to have fixed the audio sync problem but when I export to a Quicktime movie from FCP my file size is HUGE, and thus gives me some extreme processing times in compressor. My original file that was out of sync was 1.68 GB, but now my QT file exported using the ProRes file is 30GB. Any suggestions on how I could bring my files sizes down and thus my compressor processing times down as well. I’m exporting a QT mp4 using h264. The clip is about an hour long.

Thanks.

Pedro

[Peter Robertson]

I checked and the clip is not h264 but HDV 1080i60 which I imported from tape into FCP. I use this same workflow all the time and I have never had a problem like this. It plays in the Viewer and the Canvas correctly with no audio sync problems but when I export it to QuickTime movie it goes out of sync in the same spot. ???

Thanks.

Pedro

[Peter Robertson]

I’ll have to double check but I think it is h264.

Pedro

[Peter Robertson]

THANKS! I feel a little silly–I did not realize I forgot to change the extension of the tmp file from .mov to .mp4.

Pedro

[Peter Robertson]

These are the commands that I am using:

ffmpeg -i MTStest.mp4 -metadata title=”66115-title of clip” -metadata author=”authors name” -metadata description=”some description” -c copy -y /tmp/tmp.mov && ffmpeg -i /tmp/tmp.mov -c copy -y MTStest.mp4

And this is the output from the command line:

ffmpeg version N-49695-g4e2c636 Copyright (c) 2000-2013 the FFmpeg developers
built on Feb 7 2013 13:15:40 with gcc 4.2.1 (GCC) (Apple Inc. build 5666) (dot 3)
configuration: –enable-libx264 –enable-gpl –enable-shared
libavutil 52. 17.101 / 52. 17.101
libavcodec 54. 91.102 / 54. 91.102
libavformat 54. 61.104 / 54. 61.104
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 35.101 / 3. 35.101
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ‘MTStest.mp4’:
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
title : 66115-title of clip
artist : authors name
encoder : Lavf54.61.104
copyright : Peter Robertson
Duration: 00:28:38.76, start: 0.000000, bitrate: 1150 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280×720 [SAR 1:1 DAR 16:9], 1013 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s
Metadata:
handler_name : SoundHandler
Output #0, mov, to ‘/tmp/tmp.mov’:
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
copyright : Peter Robertson
artist : authors name
description : some description
title : 66115-title of clip
author : authors name
encoder : Lavf54.61.104
Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuv420p, 1280×720 [SAR 1:1 DAR 16:9], q=2-31, 1013 kb/s, 29.97 fps, 30k tbn, 30k tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, 128 kb/s
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 9236 fps=0.0 q=-1.0 size= 42138kB time=00:05:08.09 bitrate=1120.4kbits/frame=18903 fps=18440 q=-1.0 size= 90115kB time=00:10:30.65 bitrate=1170.6kbitframe=26939 fps=17348 q=-1.0 size= 131077kB time=00:14:58.81 bitrate=1194.7kbitframe=37062 fps=18054 q=-1.0 size= 176522kB time=00:20:36.58 bitrate=1169.4kbitframe=47064 fps=18436 q=-1.0 size= 220154kB time=00:26:10.32 bitrate=1148.5kbitframe=51510 fps=18353 q=-1.0 Lsize= 241301kB time=00:28:38.74 bitrate=1150.1kbits/s
video:212533kB audio:26920kB subtitle:0 global headers:0kB muxing overhead 0.771552%
ffmpeg version N-49695-g4e2c636 Copyright (c) 2000-2013 the FFmpeg developers
built on Feb 7 2013 13:15:40 with gcc 4.2.1 (GCC) (Apple Inc. build 5666) (dot 3)
configuration: –enable-libx264 –enable-gpl –enable-shared
libavutil 52. 17.101 / 52. 17.101
libavcodec 54. 91.102 / 54. 91.102
libavformat 54. 61.104 / 54. 61.104
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 35.101 / 3. 35.101
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ‘/tmp/tmp.mov’:
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
title : 66115-title of clip
artist : authors name
encoder : Lavf54.61.104
copyright : Peter Robertson
Duration: 00:28:38.76, start: 0.000000, bitrate: 1150 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280×720 [SAR 1:1 DAR 16:9], 1013 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc
Metadata:
handler_name : DataHandler
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s
Metadata:
handler_name : DataHandler
Output #0, mp4, to ‘MTStest.mp4’:
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
title : 66115-title of clip
artist : authors name
copyright : Peter Robertson
encoder : Lavf54.61.104
Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1280×720 [SAR 1:1 DAR 16:9], q=2-31, 1013 kb/s, 29.97 fps, 30k tbn, 30k tbc
Metadata:
handler_name : DataHandler
Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 128 kb/s
Metadata:
handler_name : DataHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=10163 fps=0.0 q=-1.0 size= 46411kB time=00:05:39.05 bitrate=1121.4kbits/frame=18903 fps=18860 q=-1.0 size= 90115kB time=00:10:30.65 bitrate=1170.6kbitframe=28765 fps=18706 q=-1.0 size= 139265kB time=00:15:59.76 bitrate=1188.7kbitframe=39383 fps=19327 q=-1.0 size= 186811kB time=00:21:54.02 bitrate=1164.6kbitframe=48629 fps=19162 q=-1.0 size= 226937kB time=00:27:02.54 bitrate=1145.8kbitframe=51510 fps=19060 q=-1.0 Lsize= 241301kB time=00:28:38.74 bitrate=1150.1kbits/s
video:212533kB audio:26920kB subtitle:0 global headers:0kB muxing overhead 0.771520%

The “description : some description” is not being written to the file. The others are.

Thanks.

Peter

Pedro

[Peter Robertson]

FFMPEG for output conversion will work well in web server (cloud) environment and could also be used to convert to pro res for editing. But as far as an open source video editor that’s a tough one. I’ve seen Kaltura used as a server based video archiving and hosting service but I don’t know about editing. Sounds like an interesting project…

Pedro

[Peter Robertson]

That works great except I can’t seem to be able to set the description

-metadata description=”Some info”

Either that or I can’t seem to be able to view it using Exiftool.

Any suggestions?

Thanks.

Pedro

[Peter Robertson]

very nice! Works great. Thanks for the code.

Pedro

Pedro

[Peter Robertson]

Thanks. So the precompiled binary will have libx264, libfaac and libmp3lame?

Another question–anyone running ffmbc? I want to be able to transcode HDV to ProRes.

Pedro