Hi,
I have been working with VP3 for some time now. Dan Miller from
On2 just told me about this list.
A few months ago, I managed to get On2's VP3 source snapshot to
compile under Linux, a feat that many have apparently attempted and
quickly abandoned. I compiled a small console app and the results of the
experiment are explained here:
http://www.geocrawler.com/archives/3/22001/2002/5/0/8664041/
Last night, I finally took that same experiment and formed a xine
video decoder plugin from it. (Aside: xine is a multimedia player for
Linux that I help develop: http://xine.sf.net) The plugin appeared to work
all right in that it did not crash. The picture is a bit scrambled. It
looks like too many pixels (or not enough pixels) are being copied from
the source planes.
I'm using the ThisFrameRecon YUV buffer pointer member of the PBI
struct as the final display frame. I'm using the [Y|U|V]DataOffset members
in order to index into the buffer. Is that the right thing to do?
Thanks...
--
-Mike Melanson
<p><p><p>--- >8 ----
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hi Mike -- how did you deal with the .asm files? ___ Dan Miller (++,) CTO and founder, On2 Technologies On Mon, 5 Aug 2002, Mike Melanson wrote:> Hi, > I have been working with VP3 for some time now. Dan Miller from > On2 just told me about this list. > > A few months ago, I managed to get On2's VP3 source snapshot to > compile under Linux, a feat that many have apparently attempted and > quickly abandoned. I compiled a small console app and the results of the > experiment are explained here: > http://www.geocrawler.com/archives/3/22001/2002/5/0/8664041/ > > Last night, I finally took that same experiment and formed a xine > video decoder plugin from it. (Aside: xine is a multimedia player for > Linux that I help develop: http://xine.sf.net) The plugin appeared to work > all right in that it did not crash. The picture is a bit scrambled. It > looks like too many pixels (or not enough pixels) are being copied from > the source planes. > > I'm using the ThisFrameRecon YUV buffer pointer member of the PBI > struct as the final display frame. I'm using the [Y|U|V]DataOffset members > in order to index into the buffer. Is that the right thing to do? > > Thanks... > -- > -Mike Melanson > > > > > --- >8 ---- > List archives: http://www.xiph.org/archives/ > Ogg project homepage: http://www.xiph.org/ogg/ > To unsubscribe from this list, send a message to 'theora-dev-request@xiph.org' > containing only the word 'unsubscribe' in the body. No subject is needed. > Unsubscribe messages sent to the list will be ignored/filtered. ><p><p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'theora-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
mike -- where can I download a snapshot of your Linux version that exhbits the problems mentioned? ___ Dan Miller (++,) CTO and founder, On2 Technologies On Mon, 5 Aug 2002, Mike Melanson wrote:> Hi, > I have been working with VP3 for some time now. Dan Miller from > On2 just told me about this list. > > A few months ago, I managed to get On2's VP3 source snapshot to > compile under Linux, a feat that many have apparently attempted and > quickly abandoned. I compiled a small console app and the results of the > experiment are explained here: > http://www.geocrawler.com/archives/3/22001/2002/5/0/8664041/ > > Last night, I finally took that same experiment and formed a xine > video decoder plugin from it. (Aside: xine is a multimedia player for > Linux that I help develop: http://xine.sf.net) The plugin appeared to work > all right in that it did not crash. The picture is a bit scrambled. It > looks like too many pixels (or not enough pixels) are being copied from > the source planes. > > I'm using the ThisFrameRecon YUV buffer pointer member of the PBI > struct as the final display frame. I'm using the [Y|U|V]DataOffset members > in order to index into the buffer. Is that the right thing to do? > > Thanks... > -- > -Mike Melanson > > > > > --- >8 ---- > List archives: http://www.xiph.org/archives/ > Ogg project homepage: http://www.xiph.org/ogg/ > To unsubscribe from this list, send a message to 'theora-dev-request@xiph.org' > containing only the word 'unsubscribe' in the body. No subject is needed. > Unsubscribe messages sent to the list will be ignored/filtered. ><p><p><p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'theora-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
On Monday 05 August 2002 16:54, Mike Melanson wrote:> Hi, > I have been working with VP3 for some time now. Dan Miller from > On2 just told me about this list. > > A few months ago, I managed to get On2's VP3 source snapshot to > compile under Linux, a feat that many have apparently attempted and > quickly abandoned. I compiled a small console app and the results of the > experiment are explained here: > http://www.geocrawler.com/archives/3/22001/2002/5/0/8664041/ > > Last night, I finally took that same experiment and formed a xine > video decoder plugin from it. (Aside: xine is a multimedia player for > Linux that I help develop: http://xine.sf.net) The plugin appeared to work > all right in that it did not crash. The picture is a bit scrambled. It > looks like too many pixels (or not enough pixels) are being copied from > the source planes. > > I'm using the ThisFrameRecon YUV buffer pointer member of the PBI > struct as the final display frame. I'm using the [Y|U|V]DataOffset members > in order to index into the buffer. Is that the right thing to do? > > Thanks...Hi, I have made a SDL player (only video). It compiles fine under linux. The FreeCraft CVS contains an avi player (VP3 video + OGG audio) which compiles fine on all SDL/FreeCraft platforms (Linux/Windows/Mac OS X/...). It is based on the generic video routines (no assembler and other things). The SDL player source can be found here: http://freecraft.sourceforge.net/snapshots/myvp3.tar.gz My final player is only in CVS: http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/freecraft/freecraft/src/movie/ This is my copy routine: (overlay is a SDL overlay surface) SDL_LockYUVOverlay(overlay); GetYUVConfig(pbi, &yuv); for (i = 0; i < yuv.YHeight; ++i) { // copy Y memcpy(overlay->pixels[0] + i * overlay->pitches[0], yuv.YBuffer + (yuv.YHeight - i - 1) * yuv.YStride, yuv.YWidth); } for (i = 0; i < yuv.UVHeight; ++i) { // copy UV memcpy(overlay->pixels[1] + i * overlay->pitches[1], yuv.VBuffer + (yuv.UVHeight - i - 1) * yuv.UVStride, yuv.UVWidth); memcpy(overlay->pixels[2] + i * overlay->pitches[2], yuv.UBuffer + (yuv.UVHeight - i - 1) * yuv.UVStride, yuv.UVWidth); } SDL_UnlockYUVOverlay(overlay); Hope this help, Johns -- Become famous, earn no money, create music or graphics for FreeCraft RTS http://FreeCraft.Org - FreeCraft a free real-time strategy game engine <p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'theora-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.