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sceAudiocodec/sceVideocodec: fill an AAC gap and name two ME functions

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sceAudiocodecCheckNeedMem set neededMem for every codec except AAC, where it
was left at whatever was in the context. Set it to 0x18f20 like the others; our
faked ME memory meant this never blocked, but a game that validates it could.

Also name the two hash-named sceVideocodec exports from their firmware
behaviour: 0x893B32B1 configures the codec during sceMpegCreate in mode 1
(SetMode), and 0xD95C24D5 copies a decoded YCbCr frame between buffers via the
ME (CopyYCbCr), the videocodec-level counterpart of sceMpegBaseYCrCbCopy. Both
are still stubs - only mpeg.prx calls them, on paths nothing we run reaches -
but they are now documented for whoever implements them.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
This commit is contained in:
Henrik RydgårdandClaude Opus 5 committed 2026-09-17 11:01:09 -06:00
1 parent ba7bf86e73
commit c596bdf9a4
2 files changed
+12 -4
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Core/HLE/sceAudiocodec.cpp
+1
View File
@@ -460,6 +460,7 @@ static int sceAudiocodecCheckNeedMem(u32 ctxPtr, int codec) {
break;
case 0x1003:
// Kosmodrones uses sceAudiocodec directly (no intermediate library).
ctx->neededMem = 0x18f20;
INFO_LOG(Log::ME, "CheckNeedMem for codec %04x: format %02x %02x", codec, ctx->fmt.at3.formatByte1, ctx->fmt.at3.formatByte2);
break;
}
Core/HLE/sceVideocodec.cpp
+11 -4
View File
@@ -635,11 +635,18 @@ static int sceVideocodecSetMemory(u32 ctxAddr, int type) {
return hleLogDebug(Log::ME, 0);
}
static int sceVideocodec_893B32B1(u32 ctxAddr, int type) {
// 0x893B32B1. mpeg.prx runs this from sceMpegCreate, only in mode 1 (the path where the game reads
// raw YCbCr out rather than letting sceMpegbase convert to RGB). On hardware it writes back the
// 0x28-byte output descriptor at ctx+0x10 and issues ME video op 0x6D68B223 to configure the codec.
// Nothing we run reaches it, so it stays a stub - implement it if a mode-1 game needs it.
static int sceVideocodecSetMode(u32 ctxAddr, int type) {
return hleLogWarning(Log::ME, 0, "UNIMPL");
}
static int sceVideocodec_D95C24D5(u32 ctxAddr, int type) {
// 0xD95C24D5. Copies a decoded YCbCr frame between two sets of buffers through the ME (op
// 0x21521BE5) - the videocodec-level counterpart of sceMpegBaseYCrCbCopy. mpeg.prx calls it on the
// sceMpegAvcCopyYCbCr path. Nothing we run reaches it, so it stays a stub for now.
static int sceVideocodecCopyYCbCr(u32 ctxAddr, int type) {
return hleLogWarning(Log::ME, 0, "UNIMPL");
}
@@ -656,8 +663,8 @@ const HLEFunction sceVideocodec[] = {
{0X17CF7D2C, &WrapI_UI<sceVideocodecGetFrameCrop>, "sceVideocodecGetFrameCrop", 'i', "xi"},
{0X26927D19, &WrapI_UI<sceVideocodecGetVersion>, "sceVideocodecGetVersion", 'i', "xi"},
{0X627B7D42, &WrapI_UI<sceVideocodecGetSEI>, "sceVideocodecGetSEI", 'i', "xi"},
{0X893B32B1, &WrapI_UI<sceVideocodec_893B32B1>, "sceVideocodec_893B32B1", 'i', "xi"},
{0XD95C24D5, &WrapI_UI<sceVideocodec_D95C24D5>, "sceVideocodec_D95C24D5", 'i', "xi"},
{0X893B32B1, &WrapI_UI<sceVideocodecSetMode>, "sceVideocodecSetMode", 'i', "xi"},
{0XD95C24D5, &WrapI_UI<sceVideocodecCopyYCbCr>, "sceVideocodecCopyYCbCr", 'i', "xi"},
};
void Register_sceVideocodec() {