[Ffmpeg-devel] [PATCH] DV Tune Up

[Brian Brice]

Hello.

I have a patch by a coworker of mine that tunes up some issues with DV
encoding and outputting.  These issues came up when trying to send DV
data to a DV camera.  The major issue is regarding audio not being able
to play while the DV data was being sent.  Other issues are for writing
"correct" info in certain packs according to standards.  Thanks!

-- 
Brian Brice


-------- Original Message --------
Subject: description of changes- modified
Date: Tue, 14 Nov 2006 16:48:48 -0600
From: Abheeshta Seethepalli
To: Brian Brice

dvenc.c:
line 129-
buf[3]- the speed for NTSC should be "0xa0" signalling that it is an IEC
stream. But this is specific to us, because cameras like incoming
streams to be this way.

All the following changes are suggested to match SMPTE 314m.

line 204-
The Timecode packs should be written only for SSYB IDs- 3,4,5 and 9,10,11.

dvdata.h:
line 2707-
For SSYB number 11 ID0 has APT2,1,0=001 (314m)

dv.c:
line 1099-
apt should be 0 for NTSC and PAL DV
line 1167-
The existing code was writing SSYB numbers 0-5 in DIF blocks 2 & 3. I
changed it to write SSYB numbers 0-5 in DIF block 2 and 6-11 in DIF
block 3.

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