04 December 2019, 15:00 | #61 | |
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Quote:
Resolution 320x180 works fine on my CRT TV. The option of centering the image vertically in AGA_Blaster could be used. I tested on Micro Drive 5GB, because CF card is slower. On CD32 with fast ram (WicherCD32, transfer about 3,5MB/s) i have 20FPS in 320x180, sound 22050hz On A1200 with fast ram (transfer about 2,1MB/s) i have 17FPS in 320x180, sound 16000hz In my opinion wery well results- BIG thanks |
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06 December 2019, 15:19 | #62 |
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@movec
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06 December 2019, 17:11 | #63 |
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movec if it can help here are the info found on the file "Creamedbg.yafa"
Last edited by AMIGASYSTEM; 16 December 2019 at 09:28. |
07 December 2019, 14:47 | #64 |
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In default resolution 350x256 in 254 colors, and Sound 22050 I have on WicherCD32 14 FPS.
My Friend with the same movie on CD32 SX PRO (68030, and transfer from HDD about 1.7MBps) had about 17 FPS- better than me- that mean the speed of RAM (and CPU) is important. |
08 December 2019, 06:01 | #65 |
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For this video with 176x120, 224 frames , HAM8, (one byte per pixel) and a files size of 3.67 MB, it's reducing the raw graphics data to about 78%.
Just for a rough comparison, if I simply run zip on my 17sec test video file, I also get about 78%. So there is some room for loss-less compression, but it isn't that dramatic either. Is wildfire (from 1996) the only available yafa encoder? https://aminet.net/package/gfx/misc/YAFA Unfortunately, ffmpeg doesn't support the yafa format. |
08 December 2019, 06:10 | #66 | |
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* Number of skipped video frames * Max VERTB interrupt finish pos * Audio frame buffer delays * Video frame buffer delays From that one can see how well the default config fits your system. |
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09 December 2019, 07:58 | #67 | |
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False alarm. My Friend made mistake. He has about 12FPS in 320x256, and 17FPS in 320x180 in 256 colors. BTW If we have Black&White movie to convert, 64 colors are perfect (exactly 62 colors)- enough quality, less size, and more FPS On my Friend's hardware (CD32 SX PRO 6030) in 64 colors in 320x256, frame rate get increase from 12 to 17 FPS :-) Last edited by BULI; 09 December 2019 at 21:40. |
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11 December 2019, 14:50 | #68 |
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About proper aspect ratio when we want to convert 16:9 video to screen Amiga PAL 320x256.
I thought that 320x180 is correct to TV CRT (4:3) screen, but isn't true, because Amiga make full screen in 320x256, not 320x240. So, if we want have proper aspect ratio, we must convert material 16:9 (eg 1920 x 1080) to 320x196. Last edited by BULI; 12 December 2019 at 22:36. |
31 December 2019, 09:38 | #69 |
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AGABlaster use setting of Overscan?
We could use bigger resolution in NTSC! |
14 January 2020, 14:55 | #70 |
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I've been meaning to have a play with this software so I've downloaded the latest version along with the samples to try out later on my CD32.
I'll also have a go at the encoding process later but one quick question. Is there any requirement for the format of the original video file and is the any benefit in using say a 720 or 1080p video rather than say 480p or other lower resolutions? |
14 January 2020, 18:02 | #71 | |
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About requirements: Resolution of source video, don't have any matter (off course bether quality of source, bether final result). I tried only mp4 files, but it work on FFMPEG, so probably will support formats accepted for FFMPEG? You must check this on your own. |
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15 January 2020, 01:31 | #72 |
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According to the stats screen playing the low res zoraia scaled gets a solid 24fps with 0 frames skipped. Am I reading it correctly? The frames per second listed at the bottom of the output?
In any case all I can is I'm astonished by the quality. I really can't get over just how clear the image is. Certainly puts the like of VCD to shame, its just a pity the file size is so big or Commodore might of had a home movie format on their hands. |
22 January 2020, 10:28 | #73 | |
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Yes, every format that ffmpeg accepts can be used. agaconv-script simply calls ffmpeg to extract the frames and sound data (with a bunch of options). |
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22 January 2020, 10:55 | #74 | ||
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Quote:
BTW, I will soon release an update which allows to seek forward/backward and halt the player. |
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23 January 2020, 14:43 | #75 | |
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Looking forward to the new version. Would be nice to pause the image for sake of comparisons. If I could add a wish feature would it be possible to the video in a window on workbench? |
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27 January 2020, 10:41 | #76 | |
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Thanks for the suggestion. The new version 0.9.70 (just released) supports this by default (option NOCENTER turns it off). There is also an option for YOFFSET=NUMBER (for playing around with it). |
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27 January 2020, 11:00 | #77 | |
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AGABlaster runs on the original AGA hardware and the video quality largely relies on changing all 256 colors in every frame (selected from the 24 bit color range in every frame). Hence, with an 8-bit WB this would be quite "flashy" To run it in a window requires graphics card support (which I may add at some point). |
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27 January 2020, 11:15 | #78 |
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Hi guys, AGABlaster 0.9.70 is now available:
[https://mschordan.github.io/amiga/agablaster.html * Added keyboard video controls (forward/backward/halt/restart/volume) The backward seek on disk is very slow on the original OS3.x. Therefore AGABlaster 0.9.70 computes an internal offset table (while playing) to compute a single seek for +-10 secs. This keeps it within reasonable time range (1-2 secs). Forward is always fast. * Added automatic video centering (y-axis) * Added copper effects (duplicates video 4x and 12x) - 4x works fine on my A4000/60, 12x shows some flickering sometimes on my A4000/60 (it runs fine in the emulator). Something to figure out about this one. * Activated AGA border blank feature - that's a feature on the AGA architecture to turn off the border - this means it's black, even if color register 0 (background color) has a color different to black. Therefore any CDXL video will run without "flashy" background (with agaconv this is not an issue because it already encodes videos with black background color). |
27 January 2020, 11:27 | #79 |
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Is CDXL possible in 16 colour or is it tied to HAM?
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27 January 2020, 11:28 | #80 | |
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The NTSC command line option also takes the 60Hz frequency into consideration for the speed of the video (I am not trying to detect automatically NTSC systems yet, therefore the command line option). Same as above, I cannot test this, but if you compare it to the original video (running on a PC), this option should be necessary to get the speed right on an NTSC Amiga system (the sound will always be in sync with the video, so this isn't that easy to spot . |
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