Convert to 3gp with ffmpeg

[isa.dsouza]

I tried running this command to convert to 3gp with no luck.

ffmpeg -i filename.flv -s qcif -vcodec h264 -b 200k -acodec libfaac -ab 64k -y filename.3gp

ffmpeg version 0.8.3-4:0.8.3-0ubuntu0.12.04.1, Copyright (c) 2000-2012 the Libav developers
built on Jun 12 2012 16:37:58 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.
[flv @ 0x8f74240] Estimating duration from bitrate, this may be inaccurate
Input #0, flv, from 'filename.flv':
Metadata:
starttime : 0
totalduration : 170
totaldatarate : 335
bytelength : 7146005
canseekontime : true
sourcedata : B4A7D6203HH1300837429600021
purl :
pmsg :
Duration: 00:02:50.24, start: 0.000000, bitrate: 335 kb/s
Stream #0.0: Video: h264 (Main), yuv420p, 320x240 [PAR 1:1 DAR 4:3], 281 kb/s, 25 tbr, 1k tbn, 50 tbc
Stream #0.1: Audio: aac, 44100 Hz, mono, s16, 53 kb/s
Unknown encoder 'h264'

ffmpeg -i filename.flv -s qcif -vcodec h264 -b 200k -acodec libvo_aacenc -ab 64k -y filename.3gp

ffmpeg version 0.8.3-4:0.8.3-0ubuntu0.12.04.1, Copyright (c) 2000-2012 the Libav developers
built on Jun 12 2012 16:37:58 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.
[flv @ 0x9218240] Estimating duration from bitrate, this may be inaccurate
Input #0, flv, from 'filename.flv':
Metadata:
starttime : 0
totalduration : 170
totaldatarate : 335
bytelength : 7146005
canseekontime : true
sourcedata : B4A7D6203HH1300837429600021
purl :
pmsg :
Duration: 00:02:50.24, start: 0.000000, bitrate: 335 kb/s
Stream #0.0: Video: h264 (Main), yuv420p, 320x240 [PAR 1:1 DAR 4:3], 281 kb/s, 25 tbr, 1k tbn, 50 tbc
Stream #0.1: Audio: aac, 44100 Hz, mono, s16, 53 kb/s
Unknown encoder 'h264'

[nothingspecial]

Question moved to it's own thread.

[isa.dsouza]

Answer in this thread http://ubuntuforums.org/showthread.php?t=1254647

[evilsoup]

'h264' isn't a valid encoder in ffmpeg, you'd need to use 'libx264' instead. here is a guide for encoding with libx264. Used correctly, this will get you better quality/size than using mpeg4.

[isa.dsouza]

I guessed as much about the h264 bit. I will give the guide a shot. It is very complicated though.

[FakeOutdoorsman]

I guessed as much about the h264 bit. I will give the guide a shot. It is very complicated though.

If there are some particular confusing sections, or if you have any suggestions to make it more user friendly, then please let me know.