Talk:Downloads

Great idea, Keoeeit‎. Thanks for expending the effort.

Thanks for the vote in favor. With the dire lack of cooperation from the G7 gang, I couldn't think of any other way to include their bizarre file-sharing links in a fair manner. The only problem will be as updates happen to the author's own files and their filenames. I hope those using those makes and models and builds will take the time to update them if they ever see fit.

If you see any G7 or A5710 links that I missed or haven't found (or upcoming versions that I know nothing about), please share them. I listed all that I know. And far as I can tell the A5710 is still in testing so I didn't list any link to that one yet.

G7 src & bin

G7 src & bin - http://ewavr.nm.ru/chdk/g7.htm. This page is written in Russian, but there is all links.

IXUS700 (SD500) src & bin - http://ewavr.nm.ru/chdk/ixus700.htm

Removal of a limit in 1 Gb for video (for some cameras) + src http://ewavr.nm.ru/hdk/for_test/

Thanks VERY much for this further info. Especially for those test versions. I'm anxious to see those wonderful features working! Could someone please clarify for me though, are Zosim and Ewavr both one in the same person? I never know which name to use when making headers and references.

Yes, Zosim and Ewavr the same person (EWAVR). Test versions are checked up now on а710 and s3is.

Thanks for the clarification! That's going to help in editing. :-)

Here's my own tests on the S3 (full version):

Test results: 640x480 30fps video, 44.1kHz audio, compression 50 -- stopped at 24 minutes 36 seconds, 1.85 gigs. Camera reported 2G card was full. (It was also partly full of other things.) So figure at least 1.5 hours of high-quality video on an 8G card. Unless there's still a 1 hour limit. Compression artifacts (set at 50): minimal and acceptable. Nothing at all like the HIcompression in earlier builds.

Trying again on a 4G (FAT16 format) card at compression of 85. Wondering if it'll hit a 2gig FAT16 limit. ... It quit at 1.99gigs (FAT16 limit), 13.5 minutes video length. Compression of 85 appears to be less compression than 50 (never can tell which way they mean by "most" when it comes to compression). Looks like you can even get less compression than Canon has designed into their firmware. Normally 1gig would have been about 9-10 minutes. A nice addition for those videophiles that require the very best video they can get. Someone will have to compare the new compression options against the very best video cams now. These P&S cameras' video already rivaled most video cameras, I suspect they can now easily beat them, if you have the card space.

Now to try in 4G in FAT32 and higher compression (lower numbers), and lesser audio quality, to see about that 1 hour limit...

EWAVR's "VideoPlus" Version - Notes & Firmware Usage Info

I would like to start a discussion section concerning this pretty spectacular build (spectacular for those who also bought their cameras for the video capability).

I'm pretty busy this weekend, so haven't had time to test things thoroughly, but it would be interesting to have a small chart of compression levels. Things like megabytes per second (giving everyone an idea of "quality", people into video can quickly relate MB/s to video quality, if audio isn't included in that rate); some subjective comments on how much artifacts each level produces, like some examples on which those levels of compression would be applicable; things of that nature.

I'll move the "notes" about it from the download page to here, so we can have a better place to share our findings.

(A huge THANKS to EWAVR for discovering these things! USB remote included! I hope he doesn't mind me coining the term "VideoPlus" to describe it.)

Some initial findings:

Initial Tests: The A710 and S3 IS experimental "VideoPlus" versions have been tested and appear to be working just fine so far.

FAT16 & AutoLoading CHDK: 2GIG Limit: If you are using SD cards larger than 2G and FAT16 to make use of CHDK's auto-loading feature, be reminded that there's still a 2GIG file-size limit for FAT16, that is a limit of FAT16 and there's nothing you can do about it. If you want to shoot video to the capacity of your SD card you'll have to use FAT32 and do without the auto-booting feature (a small price to pay for such an amazing improvement).

Compression Levels: The user selected compression setting of 1 to 99 means 1 is the most compression (lowest quality), 99 the least compression (highest quality). It appears that the default compression setting of 86 when first run is even less than the original Camera's firmware (see test notes in discussion page of this section). Meaning that you can get even better video quality than before. A compression of 50 was quite acceptable, some fine vertical artifacts but nothing like the HIcompression mode of earlier builds and afforded a little over 2x's the original camera's video time.

2GIG Limit on Non-SDHC Cards: I just tested a low-quality of 20, with a 4G FAT32 format card. The file still stopped at 1.99 gigs (43m 19s, at 640x480, 30fps, 22kHz audio). Well, that's still better than having just 1 gig limit! It could be due to not using an SDHC card. This is one of those Transcend 4G (non-sdhc) hybrid types, they fake an SDHC format for more compatibility with older cameras. Someone with a real SDHC card(s) will have to make a full file-size test. (Wow, even at that much compression the video is quite acceptable! Nice!)