void AnalyzeMpeg(u32 buffer_addr, MpegContext *ctx) {
ctx->mpegStreamAddr = buffer_addr;
ctx->mpegMagic = Memory::Read_U32(buffer_addr);
ctx->mpegRawVersion = Memory::Read_U32(buffer_addr + PSMF_STREAM_VERSION_OFFSET);
switch (ctx->mpegRawVersion) {
case PSMF_VERSION_0012:
ctx->mpegVersion = MPEG_VERSION_0012;
break;
case PSMF_VERSION_0013:
ctx->mpegVersion = MPEG_VERSION_0013;
break;
case PSMF_VERSION_0014:
ctx->mpegVersion = MPEG_VERSION_0014;
break;
case PSMF_VERSION_0015:
ctx->mpegVersion = MPEG_VERSION_0015;
break;
default:
ctx->mpegVersion = -1;
break;
}
ctx->mpegOffset = bswap32(Memory::Read_U32(buffer_addr + PSMF_STREAM_OFFSET_OFFSET));
ctx->mpegStreamSize = bswap32(Memory::Read_U32(buffer_addr + PSMF_STREAM_SIZE_OFFSET));
ctx->mpegFirstTimestamp = getMpegTimeStamp(Memory::GetPointer(buffer_addr + PSMF_FIRST_TIMESTAMP_OFFSET));
ctx->mpegLastTimestamp = getMpegTimeStamp(Memory::GetPointer(buffer_addr + PSMF_LAST_TIMESTAMP_OFFSET));
ctx->mpegFirstDate = convertTimestampToDate(ctx->mpegFirstTimestamp);
ctx->mpegLastDate = convertTimestampToDate(ctx->mpegLastTimestamp);
ctx->avc.avcDetailFrameWidth = (Memory::Read_U8(buffer_addr + 142) * 0x10);
ctx->avc.avcDetailFrameHeight = (Memory::Read_U8(buffer_addr + 143) * 0x10);
ctx->avc.avcDecodeResult = MPEG_AVC_DECODE_SUCCESS;
ctx->avc.avcFrameStatus = 0;
ctx->videoFrameCount = 0;
ctx->audioFrameCount = 0;
ctx->endOfAudioReached = false;
ctx->endOfVideoReached = false;
if (ctx->mpegMagic != PSMF_MAGIC || ctx->mpegVersion < 0 ||
(ctx->mpegOffset & 2047) != 0 || ctx->mpegOffset == 0) {
// mpeg header is invalid!
return;
}
if (ctx->mediaengine && (ctx->mpegStreamSize > 0) && !ctx->isAnalyzed) {
// init mediaEngine
ctx->mediaengine->loadStream(Memory::GetPointer(buffer_addr), ctx->mpegOffset, ctx->mpegOffset + ctx->mpegStreamSize);
ctx->mediaengine->setVideoDim();
}
// When used with scePsmf, some applications attempt to use sceMpegQueryStreamOffset
// and sceMpegQueryStreamSize, which forces a packet overwrite in the Media Engine and in
// the MPEG ringbuffer.
// Mark the current MPEG as analyzed to filter this, and restore it at sceMpegFinish.
ctx->isAnalyzed = true;
INFO_LOG(ME, "Stream offset: %d, Stream size: 0x%X", ctx->mpegOffset, ctx->mpegStreamSize);
INFO_LOG(ME, "First timestamp: %lld, Last timestamp: %lld", ctx->mpegFirstTimestamp, ctx->mpegLastTimestamp);
}
void AnalyzeMpeg(u8 *buffer, MpegContext *ctx) {
ctx->mpegMagic = *(u32_le*)buffer;
ctx->mpegRawVersion = *(u32_le*)(buffer + PSMF_STREAM_VERSION_OFFSET);
switch (ctx->mpegRawVersion) {
case PSMF_VERSION_0012:
ctx->mpegVersion = MPEG_VERSION_0012;
break;
case PSMF_VERSION_0013:
ctx->mpegVersion = MPEG_VERSION_0013;
break;
case PSMF_VERSION_0014:
ctx->mpegVersion = MPEG_VERSION_0014;
break;
case PSMF_VERSION_0015:
ctx->mpegVersion = MPEG_VERSION_0015;
break;
default:
ctx->mpegVersion = -1;
break;
}
ctx->mpegOffset = bswap32(*(u32_le*)(buffer + PSMF_STREAM_OFFSET_OFFSET));
ctx->mpegStreamSize = bswap32(*(u32_le*)(buffer + PSMF_STREAM_SIZE_OFFSET));
ctx->mpegFirstTimestamp = getMpegTimeStamp(buffer + PSMF_FIRST_TIMESTAMP_OFFSET);
ctx->mpegLastTimestamp = getMpegTimeStamp(buffer + PSMF_LAST_TIMESTAMP_OFFSET);
ctx->mpegFirstDate = convertTimestampToDate(ctx->mpegFirstTimestamp);
ctx->mpegLastDate = convertTimestampToDate(ctx->mpegLastTimestamp);
ctx->avc.avcDetailFrameWidth = (*(u8*)(buffer + 142)) * 0x10;
ctx->avc.avcDetailFrameHeight = (*(u8*)(buffer + 143)) * 0x10;
ctx->avc.avcDecodeResult = 0;
ctx->avc.avcFrameStatus = 0;
ctx->videoFrameCount = 0;
ctx->audioFrameCount = 0;
ctx->endOfAudioReached = false;
ctx->endOfVideoReached = false;
if (ctx->mpegMagic != PSMF_MAGIC || ctx->mpegVersion < 0 ||
(ctx->mpegOffset & 2047) != 0 || ctx->mpegOffset == 0) {
// mpeg header is invalid!
return;
}
// When used with scePsmf, some applications attempt to use sceMpegQueryStreamOffset
// and sceMpegQueryStreamSize, which forces a packet overwrite in the Media Engine and in
// the MPEG ringbuffer.
// Mark the current MPEG as analyzed to filter this, and restore it at sceMpegFinish.
ctx->isAnalyzed = true;
// copy header struct to mpeg header.
memcpy(ctx->mpegheader, buffer, 2048);
*(u32_le*)(ctx->mpegheader + PSMF_STREAM_OFFSET_OFFSET) = 0x80000;
INFO_LOG(ME, "Stream offset: %d, Stream size: 0x%X", ctx->mpegOffset, ctx->mpegStreamSize);
INFO_LOG(ME, "First timestamp: %lld, Last timestamp: %lld", ctx->mpegFirstTimestamp, ctx->mpegLastTimestamp);
}
void AnalyzeMpeg(u32 buffer_addr, MpegContext *ctx) {
ctx->mpegStreamAddr = buffer_addr;
ctx->mpegMagic = Memory::Read_U32(buffer_addr);
ctx->mpegRawVersion = Memory::Read_U32(buffer_addr + PSMF_STREAM_VERSION_OFFSET);
switch (ctx->mpegRawVersion) {
case PSMF_VERSION_0012:
ctx->mpegVersion = MPEG_VERSION_0012;
break;
case PSMF_VERSION_0013:
ctx->mpegVersion = MPEG_VERSION_0013;
break;
case PSMF_VERSION_0014:
ctx->mpegVersion = MPEG_VERSION_0014;
break;
case PSMF_VERSION_0015:
ctx->mpegVersion = MPEG_VERSION_0015;
break;
default:
ctx->mpegVersion = -1;
break;
}
ctx->mpegOffset = bswap32(Memory::Read_U32(buffer_addr + PSMF_STREAM_OFFSET_OFFSET));
ctx->mpegStreamSize = bswap32(Memory::Read_U32(buffer_addr + PSMF_STREAM_SIZE_OFFSET));
ctx->mpegFirstTimestamp = bswap32(Memory::Read_U32(buffer_addr + PSMF_FIRST_TIMESTAMP_OFFSET));
ctx->mpegLastTimestamp = bswap32(Memory::Read_U32(buffer_addr + PSMF_LAST_TIMESTAMP_OFFSET));
ctx->mpegFirstDate = convertTimestampToDate(ctx->mpegFirstTimestamp);
ctx->mpegLastDate = convertTimestampToDate(ctx->mpegLastTimestamp);
ctx->avc.avcDetailFrameWidth = (Memory::Read_U8(buffer_addr + 142) * 0x10);
ctx->avc.avcDetailFrameHeight = (Memory::Read_U8(buffer_addr + 143) * 0x10);
ctx->avc.avcDecodeResult = MPEG_AVC_DECODE_SUCCESS;
ctx->avc.avcFrameStatus = 0;
//if (!isCurrentMpegAnalyzed) {
//SceMpegRingBuffer ringbuffer;
//InitRingbuffer(&ringbuffer, 0, 0, 0, 0, 0);
// ????
//Memory::WriteStruct(ctx->mpegRingbufferAddr, &ringbuffer);
//}
ctx->videoFrameCount = 0;
ctx->audioFrameCount = 0;
ctx->endOfAudioReached = false;
ctx->endOfVideoReached = false;
if ((ctx->mpegStreamSize > 0) && !ctx->isAnalyzed) {
ctx->mediaengine->setFakeMode(fakeMode);
ctx->mediaengine->init(buffer_addr, ctx->mpegStreamSize, ctx->mpegOffset);
ctx->mediaengine->setVideoDim(ctx->avc.avcDetailFrameWidth, ctx->avc.avcDetailFrameHeight);
// mysterious?
//meChannel = new PacketChannel();
//meChannel.write(buffer_addr, mpegOffset);
}
// When used with scePsmf, some applications attempt to use sceMpegQueryStreamOffset
// and sceMpegQueryStreamSize, which forces a packet overwrite in the Media Engine and in
// the MPEG ringbuffer.
// Mark the current MPEG as analyzed to filter this, and restore it at sceMpegFinish.
ctx->isAnalyzed = true;
INFO_LOG(ME, "Stream offset: %d, Stream size: 0x%X", ctx->mpegOffset, ctx->mpegStreamSize);
INFO_LOG(ME, "First timestamp: %d, Last timestamp: %d", ctx->mpegFirstTimestamp, ctx->mpegLastTimestamp);
}
