void navRead_DSI(dsi_t *dsi, unsigned char *buffer) {
int i;
CHECK_VALUE(sizeof(dsi_t) == DSI_BYTES - 1); // -1 for substream id
memcpy(dsi, buffer, sizeof(dsi_t));
/* Endian conversions */
/* dsi dsi gi */
B2N_32(dsi->dsi_gi.nv_pck_scr);
B2N_32(dsi->dsi_gi.nv_pck_lbn);
B2N_32(dsi->dsi_gi.vobu_ea);
B2N_32(dsi->dsi_gi.vobu_1stref_ea);
B2N_32(dsi->dsi_gi.vobu_2ndref_ea);
B2N_32(dsi->dsi_gi.vobu_3rdref_ea);
B2N_16(dsi->dsi_gi.vobu_vob_idn);
/* dsi sml pbi */
B2N_16(dsi->sml_pbi.category);
B2N_32(dsi->sml_pbi.ilvu_ea);
B2N_32(dsi->sml_pbi.ilvu_sa);
B2N_16(dsi->sml_pbi.size);
B2N_32(dsi->sml_pbi.vob_v_s_s_ptm);
B2N_32(dsi->sml_pbi.vob_v_e_e_ptm);
/* dsi sml agli */
for(i = 0; i < 9; i++) {
B2N_32(dsi->sml_agli.data[ i ].address);
B2N_16(dsi->sml_agli.data[ i ].size);
}
/* dsi vobu sri */
B2N_32(dsi->vobu_sri.next_video);
for(i = 0; i < 19; i++)
B2N_32(dsi->vobu_sri.fwda[i]);
B2N_32(dsi->vobu_sri.next_vobu);
B2N_32(dsi->vobu_sri.prev_vobu);
for(i = 0; i < 19; i++)
B2N_32(dsi->vobu_sri.bwda[i]);
B2N_32(dsi->vobu_sri.prev_video);
/* dsi synci */
for(i = 0; i < 8; i++)
B2N_16(dsi->synci.a_synca[i]);
for(i = 0; i < 32; i++)
B2N_32(dsi->synci.sp_synca[i]);
/* Asserts */
/* dsi dsi gi */
CHECK_VALUE(dsi->dsi_gi.zero1 == 0);
}
void navRead_PCI(pci_t *pci, unsigned char *buffer) {
int i, j;
CHECK_VALUE(sizeof(pci_t) == PCI_BYTES - 1); // -1 for substream id
memcpy(pci, buffer, sizeof(pci_t));
/* Endian conversions */
/* pci pci_gi */
B2N_32(pci->pci_gi.nv_pck_lbn);
B2N_16(pci->pci_gi.vobu_cat);
B2N_32(pci->pci_gi.vobu_s_ptm);
B2N_32(pci->pci_gi.vobu_e_ptm);
B2N_32(pci->pci_gi.vobu_se_e_ptm);
/* pci nsml_agli */
for(i = 0; i < 9; i++)
B2N_32(pci->nsml_agli.nsml_agl_dsta[i]);
/* pci hli hli_gi */
B2N_16(pci->hli.hl_gi.hli_ss);
B2N_32(pci->hli.hl_gi.hli_s_ptm);
B2N_32(pci->hli.hl_gi.hli_e_ptm);
B2N_32(pci->hli.hl_gi.btn_se_e_ptm);
/* pci hli btn_colit */
for(i = 0; i < 3; i++)
for(j = 0; j < 2; j++)
B2N_32(pci->hli.btn_colit.btn_coli[i][j]);
/* NOTE: I've had to change the structure from the disk layout to get
* the packing to work with Sun's Forte C compiler. */
/* pci hli btni */
for(i = 0; i < 36; i++) {
char tmp[sizeof(pci->hli.btnit[i])], swap;
memcpy(tmp, &(pci->hli.btnit[i]), sizeof(pci->hli.btnit[i]));
/* Byte 4 to 7 are 'rotated' was: ABCD EFGH IJ is: ABCG DEFH IJ */
swap = tmp[6];
tmp[6] = tmp[5];
tmp[5] = tmp[4];
tmp[4] = tmp[3];
tmp[3] = swap;
/* Then there are the two B2N_24(..) calls */
#ifndef WORDS_BIGENDIAN
swap = tmp[0];
tmp[0] = tmp[2];
tmp[2] = swap;
swap = tmp[4];
tmp[4] = tmp[6];
tmp[6] = swap;
#endif
memcpy(&(pci->hli.btnit[i]), tmp, sizeof(pci->hli.btnit[i]));
}
#ifndef NDEBUG
/* Asserts */
/* pci pci gi */
CHECK_VALUE(pci->pci_gi.zero1 == 0);
/* pci hli hli_gi */
CHECK_VALUE(pci->hli.hl_gi.zero1 == 0);
CHECK_VALUE(pci->hli.hl_gi.zero2 == 0);
CHECK_VALUE(pci->hli.hl_gi.zero3 == 0);
CHECK_VALUE(pci->hli.hl_gi.zero4 == 0);
CHECK_VALUE(pci->hli.hl_gi.zero5 == 0);
/* Are there buttons defined here? */
if((pci->hli.hl_gi.hli_ss & 0x03) != 0) {
CHECK_VALUE(pci->hli.hl_gi.btn_ns != 0);
CHECK_VALUE(pci->hli.hl_gi.btngr_ns != 0);
} else {
CHECK_VALUE((pci->hli.hl_gi.btn_ns != 0 && pci->hli.hl_gi.btngr_ns != 0)
|| (pci->hli.hl_gi.btn_ns == 0 && pci->hli.hl_gi.btngr_ns == 0));
}
/* pci hli btnit */
for(i = 0; i < pci->hli.hl_gi.btngr_ns; i++) {
for(j = 0; j < (36 / pci->hli.hl_gi.btngr_ns); j++) {
int n = (36 / pci->hli.hl_gi.btngr_ns) * i + j;
CHECK_VALUE(pci->hli.btnit[n].zero1 == 0);
CHECK_VALUE(pci->hli.btnit[n].zero2 == 0);
CHECK_VALUE(pci->hli.btnit[n].zero3 == 0);
CHECK_VALUE(pci->hli.btnit[n].zero4 == 0);
CHECK_VALUE(pci->hli.btnit[n].zero5 == 0);
CHECK_VALUE(pci->hli.btnit[n].zero6 == 0);
if (j < pci->hli.hl_gi.btn_ns) {
CHECK_VALUE(pci->hli.btnit[n].x_start <= pci->hli.btnit[n].x_end);
CHECK_VALUE(pci->hli.btnit[n].y_start <= pci->hli.btnit[n].y_end);
CHECK_VALUE(pci->hli.btnit[n].up <= pci->hli.hl_gi.btn_ns);
CHECK_VALUE(pci->hli.btnit[n].down <= pci->hli.hl_gi.btn_ns);
CHECK_VALUE(pci->hli.btnit[n].left <= pci->hli.hl_gi.btn_ns);
CHECK_VALUE(pci->hli.btnit[n].right <= pci->hli.hl_gi.btn_ns);
//vmcmd_verify(pci->hli.btnit[n].cmd);
} else {
int k;
CHECK_VALUE(pci->hli.btnit[n].btn_coln == 0);
CHECK_VALUE(pci->hli.btnit[n].auto_action_mode == 0);
CHECK_VALUE(pci->hli.btnit[n].x_start == 0);
CHECK_VALUE(pci->hli.btnit[n].y_start == 0);
CHECK_VALUE(pci->hli.btnit[n].x_end == 0);
CHECK_VALUE(pci->hli.btnit[n].y_end == 0);
CHECK_VALUE(pci->hli.btnit[n].up == 0);
CHECK_VALUE(pci->hli.btnit[n].down == 0);
CHECK_VALUE(pci->hli.btnit[n].left == 0);
CHECK_VALUE(pci->hli.btnit[n].right == 0);
for (k = 0; k < 8; k++)
CHECK_VALUE(pci->hli.btnit[n].cmd.bytes[k] == 0); //CHECK_ZERO?
}
}
}
#endif /* !NDEBUG */
}
static ifo_handle_t *
ifoReadVGMI(int file, ifo_handle_t *ifofile)
{
off_t offset;
Uint counter;
UInt32_t sector;
UInt16_t titles;
vmgi_mat_t *vmgi_mat;
tt_srpt_t *tt_srpt;
/* Make the VTS part null */
ifofile->vtsi_mat = NULL;
vmgi_mat = (vmgi_mat_t *)e_malloc(sizeof (vmgi_mat_t));
if (!vmgi_mat) {
/* fprintf(stderr, "Memmory allocation error\n");*/
free(ifofile);
return (0);
}
ifofile->vmgi_mat = vmgi_mat;
/* Last sector of VMG i.e. last sector of BUP */
offset = 12;
if (lseek(file, offset, SEEK_SET) != offset) {
#ifdef USE_LIBSCHILY
errmsg(MSGESEEK);
#else
printf(stderr, MSGESEEK);
#endif
ifoClose(ifofile);
return (0);
}
if (read(file, §or, sizeof (sector)) != sizeof (sector)) {
#ifdef USE_LIBSCHILY
errmsg(MSGEREAD);
#else
printf(stderr, MSGEREAD);
#endif
ifoClose(ifofile);
return (0);
}
B2N_32(sector);
vmgi_mat->vmg_last_sector = sector;
/* Last sector of IFO */
offset = 28;
if (lseek(file, offset, SEEK_SET) != offset) {
#ifdef USE_LIBSCHILY
errmsg(MSGESEEK);
#else
printf(stderr, MSGESEEK);
#endif
ifoClose(ifofile);
return (0);
}
if (read(file, §or, sizeof (sector)) != sizeof (sector)) {
#ifdef USE_LIBSCHILY
errmsg(MSGEREAD);
#else
printf(stderr, MSGEREAD);
#endif
ifoClose(ifofile);
return (0);
}
B2N_32(sector);
vmgi_mat->vmgi_last_sector = sector;
/* Number of VTS i.e. title sets */
offset = 62;
if (lseek(file, offset, SEEK_SET) != offset) {
#ifdef USE_LIBSCHILY
errmsg(MSGESEEK);
#else
printf(stderr, MSGESEEK);
#endif
ifoClose(ifofile);
return (0);
}
if (read(file, &titles, sizeof (titles)) != sizeof (titles)) {
#ifdef USE_LIBSCHILY
errmsg(MSGEREAD);
#else
printf(stderr, MSGEREAD);
#endif
ifoClose(ifofile);
return (0);
}
B2N_16(titles);
vmgi_mat->vmg_nr_of_title_sets = titles;
/* Star sector of VMG Menu VOB */
offset = 192;
if (lseek(file, offset, SEEK_SET) != offset) {
#ifdef USE_LIBSCHILY
errmsg(MSGESEEK);
#else
printf(stderr, MSGESEEK);
#endif
ifoClose(ifofile);
return (0);
}
if (read(file, §or, sizeof (sector)) != sizeof (sector)) {
#ifdef USE_LIBSCHILY
errmsg(MSGEREAD);
#else
printf(stderr, MSGEREAD);
#endif
ifoClose(ifofile);
return (0);
}
B2N_32(sector);
vmgi_mat->vmgm_vobs = sector;
/* Sector offset to TT_SRPT */
offset = 196;
if (lseek(file, offset, SEEK_SET) != offset) {
#ifdef USE_LIBSCHILY
errmsg(MSGESEEK);
#else
printf(stderr, MSGESEEK);
#endif
ifoClose(ifofile);
return (0);
}
if (read(file, §or, sizeof (sector)) != sizeof (sector)) {
#ifdef USE_LIBSCHILY
errmsg(MSGEREAD);
#else
printf(stderr, MSGEREAD);
#endif
ifoClose(ifofile);
return (0);
}
B2N_32(sector);
vmgi_mat->tt_srpt = sector;
tt_srpt = (tt_srpt_t *)e_malloc(sizeof (tt_srpt_t));
if (!tt_srpt) {
/* fprintf(stderr, "Memmory allocation error\n");*/
ifoClose(ifofile);
return (0);
}
ifofile->tt_srpt = tt_srpt;
/* Number of titles in TT_SRPT */
offset = 2048 * vmgi_mat->tt_srpt;
if (lseek(file, offset, SEEK_SET) != offset) {
#ifdef USE_LIBSCHILY
errmsg(MSGESEEK);
#else
printf(stderr, MSGESEEK);
#endif
return (0);
}
if (read(file, &titles, sizeof (titles)) != sizeof (titles)) {
#ifdef USE_LIBSCHILY
errmsg(MSGEREAD);
#else
printf(stderr, MSGEREAD);
#endif
return (0);
}
B2N_16(titles);
tt_srpt->nr_of_srpts = titles;
tt_srpt->title = (title_info_t *)e_malloc(sizeof (title_info_t) * tt_srpt->nr_of_srpts);
if (!tt_srpt->title) {
/* fprintf(stderr, "Memmory allocation error\n");*/
ifoClose(ifofile);
return (0);
}
/* Start sector of each title in TT_SRPT */
for (counter = 0; counter < tt_srpt->nr_of_srpts; counter++) {
offset = (2048 * vmgi_mat->tt_srpt) + 8 + (counter * 12) + 8;
if (lseek(file, offset, SEEK_SET) != offset) {
#ifdef USE_LIBSCHILY
errmsg(MSGESEEK);
#else
printf(stderr, MSGESEEK);
#endif
ifoClose(ifofile);
return (0);
}
if (read(file, §or, sizeof (sector)) != sizeof (sector)) {
#ifdef USE_LIBSCHILY
errmsg(MSGEREAD);
#else
printf(stderr, MSGEREAD);
#endif
ifoClose(ifofile);
return (0);
}
B2N_32(sector);
tt_srpt->title[counter].title_set_sector = sector;
}
return (ifofile);
}
void CMediaSource::ProcessAudioFrame(
u_int8_t* frameData,
u_int32_t frameDataLength,
Timestamp srcFrameTimestamp)
{
if (m_audioSrcFrameNumber == 0) {
if (!m_sourceVideo || m_videoSrcFrameNumber == 0) {
m_encodingStartTimestamp = GetTimestamp();
}
m_audioStartTimestamp = srcFrameTimestamp;
#ifdef DEBUG_AUDIO_SYNC
debug_message("m_audioStartTimestamp = "U64, m_audioStartTimestamp);
#endif
}
if (m_audioDstFrameNumber == 0) {
// we wait until we see the first encoded frame.
// this is because encoders usually buffer the first few
// raw audio frames fed to them, and this number varies
// from one encoder to another
m_audioEncodingStartTimestamp = srcFrameTimestamp;
}
// we calculate audioSrcElapsedDuration by taking the current frame's
// timestamp and subtracting the audioEncodingStartTimestamp (and NOT
// the audioStartTimestamp).
// this way, we just need to compare audioSrcElapsedDuration with
// audioDstElapsedDuration (which should match in the ideal case),
// and we don't have to compensate for the lag introduced by the initial
// buffering of source frames in the encoder, which may vary from
// one encoder to another
m_audioSrcElapsedDuration = srcFrameTimestamp - m_audioEncodingStartTimestamp;
m_audioSrcFrameNumber++;
#if 0
// not needed
if (resync) {
// flush preEncodingBuffer
m_audioPreEncodingBufferLength = 0;
// change dst sample numbers to account for gap
m_audioDstSampleNumber = m_audioDstRawSampleNumber
= DstTicksToSamples(m_audioSrcElapsedDuration);
error_message("Received resync");
}
#endif
bool pcmMalloced = false;
bool pcmBuffered;
u_int8_t* pcmData = frameData;
u_int32_t pcmDataLength = frameDataLength;
if (m_audioSrcChannels != m_audioDstChannels) {
// Convert the channels if they don't match
// we either double the channel info, or combine
// the left and right
uint32_t samples = SrcBytesToSamples(frameDataLength);
uint32_t dstLength = DstSamplesToBytes(samples);
pcmData = (u_int8_t *)Malloc(dstLength);
pcmDataLength = dstLength;
pcmMalloced = true;
int16_t *src = (int16_t *)frameData;
int16_t *dst = (int16_t *)pcmData;
if (m_audioSrcChannels == 1) {
// 1 channel to 2
for (uint32_t ix = 0; ix < samples; ix++) {
*dst++ = *src;
*dst++ = *src++;
}
} else {
// 2 channels to 1
for (uint32_t ix = 0; ix < samples; ix++) {
int32_t sum = *src++;
sum += *src++;
sum /= 2;
if (sum < -32768) sum = -32768;
else if (sum > 32767) sum = 32767;
*dst++ = sum & 0xffff;
}
}
}
// resample audio, if necessary
if (m_audioSrcSampleRate != m_audioDstSampleRate) {
ResampleAudio(pcmData, pcmDataLength);
// resampled data is now available in m_audioPreEncodingBuffer
pcmBuffered = true;
} else if (m_audioSrcSamplesPerFrame != m_audioDstSamplesPerFrame) {
// reframe audio, if necessary
// e.g. MP3 is 1152 samples/frame, AAC is 1024 samples/frame
// add samples to end of m_audioBuffer
// InitAudio() ensures that buffer is large enough
memcpy(
&m_audioPreEncodingBuffer[m_audioPreEncodingBufferLength],
pcmData,
pcmDataLength);
m_audioPreEncodingBufferLength += pcmDataLength;
pcmBuffered = true;
} else {
pcmBuffered = false;
}
// LATER restructure so as get rid of this label, and goto below
pcmBufferCheck:
if (pcmBuffered) {
u_int32_t samplesAvailable =
DstBytesToSamples(m_audioPreEncodingBufferLength);
// not enough samples collected yet to call encode or forward
if (samplesAvailable < m_audioDstSamplesPerFrame) {
return;
}
if (pcmMalloced) {
free(pcmData);
pcmMalloced = false;
}
// setup for encode/forward
pcmData = &m_audioPreEncodingBuffer[0];
pcmDataLength = DstSamplesToBytes(m_audioDstSamplesPerFrame);
}
// encode audio frame
if (m_pConfig->m_audioEncode) {
Duration frametime = DstSamplesToTicks(DstBytesToSamples(frameDataLength));
#ifdef DEBUG_AUDIO_SYNC
debug_message("asrc# %d srcDuration="U64" dst# %d dstDuration "U64,
m_audioSrcFrameNumber, m_audioSrcElapsedDuration,
m_audioDstFrameNumber, m_audioDstElapsedDuration);
#endif
// destination gets ahead of source
// This has been observed as a result of clock frequency drift between
// the sound card oscillator and the system mainbord oscillator
// Example: If the sound card oscillator has a 'real' frequency that
// is slightly larger than the 'rated' frequency, and we are sampling
// at 32kHz, then the 32000 samples acquired from the sound card
// 'actually' occupy a duration of slightly less than a second.
//
// The clock drift is usually fraction of a Hz and takes a long
// time (~ 20-30 minutes) before we are off by one frame duration
if (m_audioSrcElapsedDuration + frametime < m_audioDstElapsedDuration) {
debug_message("audio: dropping frame, SrcElapsedDuration="U64" DstElapsedDuration="U64,
m_audioSrcElapsedDuration, m_audioDstElapsedDuration);
return;
}
// source gets ahead of destination
// We tolerate a difference of 3 frames since A/V sync is usually
// noticeable after that. This way we give the encoder a chance to pick up
if (m_audioSrcElapsedDuration > (3 * frametime) + m_audioDstElapsedDuration) {
int j = (int) (DstTicksToSamples(m_audioSrcElapsedDuration
+ (2 * frametime)
- m_audioDstElapsedDuration)
/ m_audioDstSamplesPerFrame);
debug_message("audio: Adding %d silence frames", j);
for (int k=0; k<j; k++)
AddSilenceFrame();
}
//Timestamp encodingStartTimestamp = GetTimestamp();
bool rc = m_audioEncoder->EncodeSamples(
(int16_t*)pcmData,
m_audioDstSamplesPerFrame,
m_audioDstChannels);
if (!rc) {
debug_message("failed to encode audio");
return;
}
// Disabled since we are not taking into account audio drift anymore
/*
Duration encodingTime = (GetTimestamp() - encodingStartTimestamp);
if (m_sourceRealTime && m_videoSource) {
Duration drift;
if (frametime <= encodingTime) {
drift = encodingTime - frametime;
m_videoSource->AddEncodingDrift(drift);
}
}
*/
ForwardEncodedAudioFrames();
}
//Forward PCM Frames to Feeder Sink
if ((m_pConfig->GetBoolValue(CONFIG_FEEDER_SINK_ENABLE) &&
frameDataLength > 0)) {
// make a copy of the pcm data if needed
u_int8_t* FwdedData;
FwdedData = (u_int8_t*)Malloc(frameDataLength);
memcpy(FwdedData, frameData, frameDataLength);
CMediaFrame* pFrame =
new CMediaFrame(
RAWPCMAUDIOFRAME,
FwdedData,
frameDataLength,
srcFrameTimestamp,
0,
m_audioDstSampleRate);
ForwardFrame(pFrame);
}
// if desired, forward raw audio to sinks
if (m_pConfig->SourceRawAudio() && pcmDataLength > 0) {
// make a copy of the pcm data if needed
u_int8_t* pcmForwardedData;
if (!pcmMalloced) {
pcmForwardedData = (u_int8_t*)Malloc(pcmDataLength);
memcpy(pcmForwardedData, pcmData, pcmDataLength);
} else {
pcmForwardedData = pcmData;
pcmMalloced = false;
}
#ifndef WORDS_BIGENDIAN
// swap byte ordering so we have big endian to write into
// the file.
uint16_t *pdata = (uint16_t *)pcmForwardedData;
for (uint32_t ix = 0;
ix < pcmDataLength;
ix += sizeof(uint16_t),pdata++) {
uint16_t swap = *pdata;
*pdata = B2N_16(swap);
}
#endif
CMediaFrame* pFrame =
new CMediaFrame(
PCMAUDIOFRAME,
pcmForwardedData,
pcmDataLength,
m_audioStartTimestamp
+ DstSamplesToTicks(m_audioDstRawSampleNumber),
DstBytesToSamples(pcmDataLength),
m_audioDstSampleRate);
ForwardFrame(pFrame);
m_audioDstRawSampleNumber += SrcBytesToSamples(pcmDataLength);
m_audioDstRawFrameNumber++;
}
if (pcmMalloced) {
free(pcmData);
}
if (pcmBuffered) {
m_audioPreEncodingBufferLength -= pcmDataLength;
memcpy(
&m_audioPreEncodingBuffer[0],
&m_audioPreEncodingBuffer[pcmDataLength],
m_audioPreEncodingBufferLength);
goto pcmBufferCheck;
}
}
