diff options
author | 2008-09-18 15:17:42 +0000 | |
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committer | 2008-09-18 15:17:42 +0000 | |
commit | 1eb3c2d964342aef09a08d854bdab6716a6792bd (patch) | |
tree | ac364ed9466a0556e178770d87855ed21ce113ea /src/lib/util/chd.h | |
parent | 8e4ed692473ee31f5fdeee460526357ee4440392 (diff) |
Changed requirements for laserdisc CHDs to require a new chunk of
metadata with pre-decoded frame information. Modified chdman to
automatically produce this for CHDs that are of the appropriate
parameters. To fix up existing CHDs, use chdman -fixavdata on the
CHD.
Modified the laserdisc core to leverage the pre-decoded frame
metadata, which is now required. This improves seek times when
searching and allows the player-specific emulation access to the
VBI data as soon as it would really be available. Changed update
callback timing to fire just before the first line of VBI data
would be read; at that point, the frame selection is assumed to
be committed.
Converted PR-8210 emulation over to using the actual MCU from the
laserdisc player. This MCU controls low-level functions such as
slider position and laser on/off, and receives decoded vertical
blanking data in order to make decisions. Removed old HLE behavior.
Note that the overlay text is displayed via the UI; this is
temporary and will be fixed shortly.
Converted Simutrek-hacked laserdisc emulation to using the actual
MCU from the game, which in turn hands off commands to the PR-8210
MCU. This is still not 100% but is pretty close at this point and
achieves the correct behaviors in most cases.
Fixed Cube Quest overlay scaling to cover the whole screen.
Changed laserdisc video parameters to position the screen area at
the bottom rather than the top, since this corresponds more closely
to standard line numbering.
Extended the vbiparse code to support pack/unpack, and to more
fully document all the meanings of the VBI codes.
Updated ldplayer to support slow/fast forward movement, frame/chapter
display, and separate controls for scanning/stepping.
Added new built-in variable "frame" to the debugger.
Fixed device-based ROM loading to support loading ROMs from the
game's ZIP as well.
Diffstat (limited to 'src/lib/util/chd.h')
-rw-r--r-- | src/lib/util/chd.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/lib/util/chd.h b/src/lib/util/chd.h index 7914a9161f9..d8c74dca5d9 100644 --- a/src/lib/util/chd.h +++ b/src/lib/util/chd.h @@ -130,6 +130,9 @@ #define AV_METADATA_TAG 0x41564156 /* 'AVAV' */ #define AV_METADATA_FORMAT "FPS:%d.%06d WIDTH:%d HEIGHT:%d INTERLACED:%d CHANNELS:%d SAMPLERATE:%d" +/* A/V laserdisc frame metadata */ +#define AV_LD_METADATA_TAG 0x41564C44 /* 'AVLD' */ + /* CHD open values */ #define CHD_OPEN_READ 1 #define CHD_OPEN_READWRITE 2 |