On Mon, 18 Feb 2008 22:49:12 -0800 Richard Spindler wrote:
2008/2/19, Terje J. Hanssen <[EMAIL PROTECTED]>:
However I've read that con/prosumers won't have a chance to
come close to the professional DVD Video quality made in studios, both
due to their advanced and multiple encoding process and next due to
their high quality source footage.
I would guess part of that this is a myth, obviously, if you have a
poor camera, you likely get poor source quality, but on the encoder
side, Knowledge is the key, the tools are all available to the
Open-Source/Free Software Community. It does require time, effort and
skills to configure an mpeg encoder to produce the best quality
though. This however is not different to what "professional" video
encoding people do.
Good to hear the available tools won't be the limitations ;)
Any suggestions or guides how to transcode DV25 files to MPEG2 according
to [EMAIL PROTECTED] using CBR 15 Mbps?
This bitrate will exceed DVD video's max 9.8 Mbps, but be well within BD
Video's 40 Mbps. Another question is if this SD Video will be playback
compatible on a BD player?
What is clear however, is that MPEG-2 on BD isn't limited to SD DVD
Video, as it also can playback HD MPEG-2.
I've also noticed with interest Adam Wilt's discussion about DV quality
vs MPEG-2 as refered in the following sections from the
DV-FAQ-Editing/Transcoding:
I-frame-only MPEG-2 is said to be comparable to DV format compression at
the same bit rate. Thus 25 megabit MPEG-2 should yield results (and
transcoding errors) similar to DV, and 50 Megabit MPEG-2 should be
comparable to DV50.
MPEG-2 at 25 Megabits should be roughly comparable to DV, though its
4:2:2 color sampling may be more beneficial for graphics. Are 25 Mbps
MPEG-2's benefits worth the transcoding hit coming from DV? It's
arguable: I've been comparing DV25 and MPEG-2 25Mbit, and can't say I
see a huge difference one way or the other. Both have their artifacts,
and their tradeoffs.
http://adamwilt.com/DV-FAQ-editing.html#transcoding
----------------
Terje J. Hanssen
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