converting .mov to iphone - with no audio!!!

[paul_b]

Hi,
I am sure that this gets asked quite a bit so I will try and provide as much information. I am trying to convert a .mov file to iphone H264 format. It seems to convert the file ok but when its finished there are two files created. A .mp4 and a .wav file. For a start off I thought there should only be 1 file created! Why is this so? Also the .wav file is 0 Bytes in size!

I have pressed the info button and I copied it below. Hope someone can help?

Encoding started on Sun Jul 26 10:47:42 BST 2009
x264 [info]: using SAR=1000/1001
x264 [info]: using cpu capabilities MMX MMXEXT SSE SSE2
mp4 [info]: initial delay 0 (scale 30000)
movtoy4m
Copyright 2002-2006 Johan Lindström
All rights reserved..
Encoding audio..
x264 [info]: slice I:8 Avg QP:15.75 size: 25931 PSNR Mean Y:51.99 U:54.68 V:55.69 Avg:52.81 Global:52.43
x264 [info]: slice P:1915 Avg QP:15.02 size: 102 PSNR Mean Y:52.37 U:54.90 V:55.85 Avg:53.15 Global:53.11
x264 [info]: mb I I16..4: 69.2% 0.0% 30.8%
x264 [info]: mb P I16..4: 0.0% 0.0% 0.0% P16..4: 2.7% 0.0% 0.0% 0.0% 0.0% skip:97.2%
x264 [info]: final ratefactor: -4.57
x264 [info]: PSNR Mean Y:52.364 U:54.901 V:55.848 Avg:53.150 Global:53.112 kb/s:50.15
encoded 1923 frames, 45.74 fps, 50.25 kb/s
error: could not convert audio track!
Computing levels...
normalize: WAV header not found
normalize: error reading /Users/xxx/Desktop/xx.mov.ff.wav
FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Mac OSX universal build for ffmpegX
configuration: --enable-memalign-hack --enable-mp3lame --enable-gpl --disable-vhook --disable-ffplay --disable-ffserver --enable-a52 --enable-xvid --enable-faac --enable-faad --enable-amr_nb --enable-amr_wb --enable-pthreads --enable-x264
libavutil version: 49.0.0
libavcodec version: 51.9.0
libavformat version: 50.4.0
built on Apr 15 2006 04:58:19, gcc: 4.0.1 (Apple Computer, Inc. build 5250)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/xxxl/Desktop/xx.mov.ff.video.mp4':
Duration: 00:01:04.1, start: 0.000000, bitrate: 51 kb/s
Stream #0.0(und), 29.97 fps(r): Video: h264, yuv420p, 640x352
/Users/xxx/Desktop/xx.mov.ff.wav: Unknown format

[Case]

there are two files created. Why is this so?

ffmpegX does the conversion in steps: first the video, then the audio, then combining the two. If the audio conversion would fail, then you would end up with an output video file and a non-functional/broken audio file.

Please tell us a bit more about the audio format in the source file. Try MediaInfo Mac if other information tools fail.

[paul_b]

there are two files created. Why is this so?

ffmpegX does the conversion in steps: first the video, then the audio, then combining the two. If the audio conversion would fail, then you would end up with an output video file and a non-functional/broken audio file.

Please tell us a bit more about the audio format in the source file. Try MediaInfo Mac if other information tools fail.

Thanks case for the info. I have just downloaded mediaInfo and the have listed the output below. Hope you can help.


*** MediaInfo Mac // Plain text file report
2009-07-26 18:25:23 +0100
Information for File: 00_02_exfiles.mov

General / Container Stream # 1
Total Video Streams for this File -> 1
Total Audio Streams for this File -> 1
Video Codecs Used -> AVC
Audio Codecs Used -> AAC LC
File Format -> MPEG-4
Play Time -> 1mn 4s
Total File Size -> 1.03 MiB
Total Stream BitRate -> 135 Kbps
Encoding Library -> Apple QuickTime
Video Stream # 1
Codec (Human Name) -> AVC
Codec (FourCC) -> avc1
Codec Profile -> Main@L3.1
Frame Width -> 880 pixels
Frame Height -> 660 pixels
Frame Rate -> 8.632 fps
Total Frames -> 553
Display Aspect Ratio -> 4/3
Scan Type -> Progressive
Colorimetry -> 4:2:0
Codec Settings (Summary) -> 2 Ref Frames
QF (like Gordian Knot) -> 0.012
Codec Settings (CABAC) -> No
Video Stream Length -> 1mn 4s 66ms
Video Stream BitRate -> 59.3 Kbps
Video Stream BitRate Mode -> VBR
Bit Depth -> 24 bits
Video Stream Size -> 464 KiB (44%)
Date of Original Encoding -> UTC 2008-10-07 17:12:06
Audio Stream # 1
Codec -> AAC
Codec (FourCC) -> 40
Audio Stream Length -> 1mn 4s 64ms
Audio Stream BitRate -> 72.0 Kbps
Audio Stream BitRate (Nominal) -> 64.0 Kbps
Audio Stream BitRate Mode -> CBR
Number of Audio Channels -> 1
Audio Channel's Positions -> C
Sampling Rate -> 48.0 KHz
Bit Depth -> 16 bits
Audio Stream Size -> 563 KiB (53%)
Date of Original Encoding -> UTC 2008-10-07 17:12:06

[Case]

I've tried to create a file with the same specifications (.H264 video Main L3.1 880x660 @ 8.632 fps, AAC audio 48kHz, in a .MOV container) and convert it with the iPhone preset in ffmpegX. It converted fine, with audio. So, I'm stumped as to why it won't work on your side.

Is it possible for you to upload your source file somewhere so I can have a try at your file?

[paul_b]

I've tried to create a file with the same specifications (.H264 video Main L3.1 880x660 @ 8.632 fps, AAC audio 48kHz, in a .MOV container) and convert it with the iPhone preset in ffmpegX. It converted fine, with audio. So, I'm stumped as to why it won't work on your side.

Is it possible for you to upload your source file somewhere so I can have a try at your file?

Hi,
Thanks for all your help. I have sent you a pm.

[Case]

It seems using FilmRedux solved this issue.

[paul_b]

It seems using FilmRedux solved this issue.

Thanks for posting this case. I should have done this.

Has anyone used FilmRedux before? And what is peoples verdict of it?