heroku ffmpeg

Dont have to use Vulcan to build ffmpeg libs on heroku hardware. The precompiled linux-64 binary from the download page will work. Just get it and include in ./vendor/bin of your project.

download the static binary for linux-64 from ffmpeg/downloads page and include in heroku project
insert following bash script into heroku project
push to heroku
alter heroku PATH to include the new binaries ( script, ffmpeg )

run the script

#!/bin/bash
# get 2 input files ( jpg , wav ) and use them in 2pass ffmpeg to create an .mp4 output file
shopt -s globstar
uri=$1
filnam="${uri##*/}"
uri2=$2
filnam2="${uri2##*/}"
curl -#LO  $uri
curl -#LO  $uri2
ffmpeg -y -i "$filnam" -i "$filnam2" -r 1/2 -pass 1 -vcodec libx264 -b:v 200k -bt 50k  -an -f mp4 -strict -2 -passlogfile mydummy /dev/null
ffmpeg -y -i "$filnam" -i "$filnam2" -r 1/2 -pass 2 -vcodec libx264 -b:v 200k -bt 50k  -f mp4 -strict -2 -passlogfile mydummy -ar 44100 filot.mp4

$ vendor/bin/pars_submit http://files.parse.com/1315e4d8-f302-4337-adbe-d8650ab5c312/c74489cb-c962-4678-b762-f7e990cb397b-me760935400.jpg http://files.parse.com/1315e4d8-f302-4337-adbe-d8650ab5c312/f780cfa6-d569-40c6-9b23-8632db887d5c-20121216113810.wav
http://files.parse.com/1315e4d8-f302-4337-adbe-d8650ab5c312/c74489cb-c962-4678-b762-f7e990cb397b-me760935400.jpg
c74489cb-c962-4678-b762-f7e990cb397b-me760935400.jpg

############################################################################################################################# 100.0%
############################################################################################################################# 100.0%
ffmpeg version N-47810-geee8c94 Copyright (c) 2000-2012 the FFmpeg developers
  built on Dec 13 2012 09:06:31 with gcc 4.7 (Debian 4.7.2-4)
  configuration: --extra-cflags=-I../static/include --extra-ldflags='-L../static/lib -static' --enable-gpl --enable-version3 --enable-static --disable-shared --disable-debug --enable-runtime-cpudetect --disable-x11grab --enable-libmp3lame --enable-libx264 --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libxavs --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --disable-ffserver
  libavutil      52. 12.100 / 52. 12.100
  libavcodec     54. 79.102 / 54. 79.102
  libavformat    54. 49.101 / 54. 49.101
  libavdevice    54.  3.102 / 54.  3.102
  libavfilter     3. 27.101 /  3. 27.101
  libswscale      2.  1.103 /  2.  1.103
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
Input #0, image2, from 'c74489cb-c962-4678-b762-f7e990cb397b-me760935400.jpg':
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: mjpeg, yuvj420p, 1296x972 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
[wav @ 0x2984700] max_analyze_duration 5000000 reached at 5120000
Guessed Channel Layout for  Input Stream #1.0 : mono
Input #1, wav, from 'f780cfa6-d569-40c6-9b23-8632db887d5c-20121216113810.wav':
  Duration: 00:00:21.27, bitrate: 256 kb/s
    Stream #1:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, s16, 256 kb/s
File '/dev/null' already exists. Overwrite ? [y/N] y
using SAR=1/1
[libx264 @ 0x298b000] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
[libx264 @ 0x298b000] profile Main, level 3.2
[libx264 @ 0x298b000] 264 - core 129 r2230 1cffe9f - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x1:0 me=dia subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=1 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=200 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '/dev/null':
  Metadata:
    encoder         : Lavf54.49.101
    Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuvj420p, 1296x972 [SAR 1:1 DAR 4:3], q=-1--1, pass 1, 200 kb/s, 16384 tbn, 0.50 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg -> libx264)
Press [q] to stop, [?] for help
frame=    1 fps=0.0 q=4.0 Lsize=     848kB time=00:00:02.00 bitrate=3472.1kbits/s
video:847kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.087747%
[libx264 @ 0x298b000] frame I:1     Avg QP: 5.49  size:866529
[libx264 @ 0x298b000] mb I  I16..4:  7.4%  0.0% 92.6%
[libx264 @ 0x298b000] final ratefactor: 28.98
[libx264 @ 0x298b000] coded y,uvDC,uvAC intra: 99.8% 99.8% 99.7%
[libx264 @ 0x298b000] i16 v,h,dc,p: 10%  5% 70% 15%
[libx264 @ 0x298b000] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 14% 12%  6%  6%  7% 14%  8% 13%
[libx264 @ 0x298b000] i8c dc,h,v,p: 45% 19% 22% 14%
[libx264 @ 0x298b000] kb/s:3466.12