
MainConcept H.264 frame rate issues with Final Cut output•
Hello, first time poster hoping the vast knowledge here can point me in the right direction :) I am using MainConcept Reference to encode a file output from Final Cut using its QuickTime Exporter (It's a friend's file). The frame rate on the input file is showing "Variable", with the lowest fps at .003 and the highest at 29.97 for an overall framerate of 0.978 fps. MediaInfo says the video portion is ~5min but the audio portion says it's 10sec (which it should be). This file plays perfectly in QuickTime, but when I encode it with MainConcept to H.264/AAC, it comes out as a 5min file with the video slowed waaaay down. If I take the file into QuickTime Pro and re-export with the same settings (essentially washing the file I guess), then use that file in MainConcept, it encodes perfectly. I have tried all variations in the H.264 codec settings and have been unable to get the frame rate to come out right. Has anyone experienced a similar issue, or know of a way to get MainConcept Reference to handle Variable frame rate inputs? Here is the MediaInfo output of the source file from FinalCut (pre MainConcept Reference) Format : MPEG-4 Format profile : QuickTime Codec ID : qt File size : 32.7 MiB Duration : 5mn 15s Overall bit rate : 870 Kbps Encoded date : UTC 2009-10-07 02:52:37 Tagged date : UTC 2009-10-07 02:52:39 Writing library : Apple QuickTime Video ID : 2 Format : AVC Format/Info : Advanced Video Codec Format profile : Main@L4.1 Format settings, CABAC : No Format settings, ReFrames : 2 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 5mn 15s Bit rate mode : Variable Bit rate : 820 Kbps Width : 1 440 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Original display aspect ratio : 4:3 Frame rate mode : Variable Frame rate : 0.978 fps Minimum frame rate : 0.003 fps Maximum frame rate : 29.970 fps Resolution : 24 bits Colorimetry : 4:2:0 Scan type : Progressive Bits/(Pixel*Frame) : 0.539 Stream size : 30.8 MiB (94%) Language : English Encoded date : UTC 2009-10-07 02:52:36 Tagged date : UTC 2009-10-07 02:52:39 Color primaries : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177 Transfer characteristics : BT.709-5, BT.1361 Matrix coefficients : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177 Audio ID : 1 Format : PCM Format settings, Endianness : Little Format settings, Sign : Signed Codec ID : sowt Duration : 10s 276ms Bit rate mode : Constant Bit rate : 1 536 Kbps Channel(s) : 2 channels Sampling rate : 48.0 KHz Resolution : 16 bits Stream size : 1.88 MiB (6%) Language : English Encoded date : UTC 2009-10-07 02:52:36 Tagged date : UTC 2009-10-07 02:52:39
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As you've figured out, your source file is screwed up. __________________________________________________________________ "There's no chance that the iPhone is going to get any significant market share. No chance." Steve Ballmer To USA Today: 30 April 2007
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