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I usually download and watch videos from Deutsche Welle to work on my German. Lately, I have been commuting a lot and watching the videos on my mobile phone in the train would be nice.
I have tried to copy+paste the videos to the mobile phone but it was not read.
I have tried to convert it with ffmpeg, but it was not read either.
The command used, within a small cygwin bash script, was:
ffmpeg -y -i video.mp4 -r 14.65 -s 320x240 -b 389k -acodec libvo_aacenc -ac 1 -ar 8000 -ab 12k video.3gp
The characteristics of the original, downloaded, video are:
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isom
creation_time : 2014-02-10 03:54:28
Duration: 00:01:59.16, start: 0.000000, bitrate: 695 kb/s
Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 598 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc
Metadata:
creation_time : 2014-02-10 03:54:28
handler_name : MP4 Video Media Handler
Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 93 kb/s
Metadata:
creation_time : 2014-02-10 03:54:28
handler_name : MP4 Sound Media Handler
and the characteristic of a video created by the mobile phone are:
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: skm23gp5
Duration: 00:00:27.31, start: 0.000000, bitrate: 405 kb/s
Stream #0:0(und): Audio: amr_nb (samr / 0x726D6173), 8000 Hz, 1 channels, flt, 12 kb/s
Metadata:
handler_name : soun
Stream #0:1(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 389 kb/s, 14.65 fps, 15 tbr, 1k tbn, 15 tbc
Metadata:
handler_name : vide
hat would be the right line to convert the downloaded video?
many thanks.
Hi! many thanks for your fast answer. I used your solution, but it still gave the error message "unknown format or transmission speed too high". Having it modified made it ok:
ffmpeg -y -i video.mp4 -s 320x240 -r 14.65 -c:v mpeg4 -b:v 389k -c:a libmp3lame output.mp4
– Alex Caseiro – 2014-02-12T10:47:02.843Well, not yet. The image is right, but there is no sound. I have set
-b:a 12k
so that it resembles the video made by the phone, but it did not work. – Alex Caseiro – 2014-02-12T11:22:04.107fixed it, with the second command. thank you. – Alex Caseiro – 2014-02-12T12:04:05.127