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Commit b0c6a343 authored by Maarten Lankhorst's avatar Maarten Lankhorst Committed by Alexandre Julliard
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quartz: Parse audio packets in mpeg splitter to obtain the duration.

parent 8ad6049a
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Showing with 312 additions and 148 deletions
dlls/quartz/mpegsplit.c
View file @ b0c6a343
......@@ -57,8 +57,10 @@ typedef struct MPEGSplitterImpl
ParserImpl Parser;
IMediaSample *pCurrentSample;
LONGLONG EndOfFile;
DWORD dwSampleSize, dwLength;
FLOAT fSamplesPerSec;
LONGLONG duration;
LONGLONG position;
DWORD skipbytes;
DWORD remaining_bytes;
} MPEGSplitterImpl;
static int MPEGSplitter_head_check(const BYTE *header)
......@@ -87,20 +89,250 @@ static int MPEGSplitter_head_check(const BYTE *header)
return MPEG_NO_HEADER;
}
static const WCHAR wszAudioStream[] = {'A','u','d','i','o',0};
static const WCHAR wszVideoStream[] = {'V','i','d','e','o',0};
static const DWORD freqs[10] = { 44100, 48000, 32000, 22050, 24000, 16000, 11025, 12000, 8000, 0 };
static const DWORD tabsel_123[2][3][16] = {
{ {0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,},
{0,32,48,56, 64, 80, 96,112,128,160,192,224,256,320,384,},
{0,32,40,48, 56, 64, 80, 96,112,128,160,192,224,256,320,} },
{ {0,32,48,56,64,80,96,112,128,144,160,176,192,224,256,},
{0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,},
{0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,} }
};
static HRESULT parse_header(BYTE *header, LONGLONG *plen, LONGLONG *pduration)
{
LONGLONG duration = *pduration;
int bitrate_index, freq_index, mode_ext, emphasis, lsf = 1, mpeg1, layer, mode, padding, bitrate, length;
if (!(header[0] == 0xff && ((header[1]>>5)&0x7) == 0x7 &&
((header[1]>>1)&0x3) != 0 && ((header[2]>>4)&0xf) != 0xf &&
((header[2]>>2)&0x3) != 0x3))
{
WARN("Not a valid header: %02x:%02x\n", header[0], header[1]);
return E_INVALIDARG;
}
mpeg1 = (header[1]>>4)&0x1;
if (mpeg1)
lsf = ((header[1]>>3)&0x1)^1;
layer = 4-((header[1]>>1)&0x3);
bitrate_index = ((header[2]>>4)&0xf);
freq_index = ((header[2]>>2)&0x3) + (mpeg1?(lsf*3):6);
padding = ((header[2]>>1)&0x1);
mode = ((header[3]>>6)&0x3);
mode_ext = ((header[3]>>4)&0x3);
emphasis = ((header[3]>>0)&0x3);
bitrate = tabsel_123[lsf][layer-1][bitrate_index] * 1000;
if (layer == 3 || layer == 2)
length = 144 * bitrate / freqs[freq_index] + padding;
else
length = 4 * (12 * bitrate / freqs[freq_index] + padding);
duration = (ULONGLONG)10000000 * (ULONGLONG)(length) / (ULONGLONG)(bitrate/8);
*plen = length;
*pduration += duration;
return S_OK;
}
static void skip_data(BYTE** from, DWORD *flen, DWORD amount)
{
*flen -= amount;
if (!*flen)
*from = NULL;
else
*from += amount;
}
static HRESULT copy_data(IMediaSample *to, BYTE** from, DWORD *flen, DWORD amount)
{
HRESULT hr = S_OK;
BYTE *ptr = NULL;
DWORD oldlength = IMediaSample_GetActualDataLength(to);
hr = IMediaSample_SetActualDataLength(to, oldlength + amount);
if (FAILED(hr))
{
if (!oldlength || oldlength <= 4)
WARN("Could not set require length\n");
return hr;
}
IMediaSample_GetPointer(to, &ptr);
memcpy(ptr + oldlength, *from, amount);
skip_data(from, flen, amount);
return hr;
}
static HRESULT FillBuffer(MPEGSplitterImpl *This, BYTE** fbuf, DWORD *flen)
{
Parser_OutputPin * pOutputPin = (Parser_OutputPin*)This->Parser.ppPins[1];
LONGLONG length = 0;
HRESULT hr = S_OK;
DWORD dlen;
LONGLONG time = This->position, sampleduration = 0;
TRACE("Source length: %u, skip length: %u, remaining: %u\n", *flen, This->skipbytes, This->remaining_bytes);
/* Case where bytes are skipped */
if (This->skipbytes)
{
DWORD skip = min(This->skipbytes, *flen);
skip_data(fbuf, flen, skip);
This->skipbytes -= skip;
return S_OK;
}
/* Case where there is already an output sample being held */
if (This->remaining_bytes)
{
DWORD towrite = min(This->remaining_bytes, *flen);
hr = copy_data(This->pCurrentSample, fbuf, flen, towrite);
if (FAILED(hr))
{
WARN("Could not resize sample: %08x\n", hr);
goto release;
}
This->remaining_bytes -= towrite;
if (This->remaining_bytes)
return hr;
/* Optimize: Try appending more samples to the stream */
goto out_append;
}
/* Special case, last source sample might (or might not have) had a header, and now we want to retrieve it */
dlen = IMediaSample_GetActualDataLength(This->pCurrentSample);
if (dlen > 0 && dlen < 4)
{
BYTE *header = NULL;
DWORD attempts = 0;
/* Shoot anyone with a small sample! */
assert(*flen >= 6);
hr = IMediaSample_GetPointer(This->pCurrentSample, &header);
if (SUCCEEDED(hr))
hr = IMediaSample_SetActualDataLength(This->pCurrentSample, 7);
if (FAILED(hr))
{
WARN("Could not resize sample: %08x\n", hr);
goto release;
}
memcpy(header + dlen, *fbuf, 6 - dlen);
while (FAILED(parse_header(header+attempts, &length, &This->position)) && attempts < dlen)
{
attempts++;
}
/* No header found */
if (attempts == dlen)
{
hr = IMediaSample_SetActualDataLength(This->pCurrentSample, 0);
return hr;
}
IMediaSample_SetActualDataLength(This->pCurrentSample, 4);
IMediaSample_SetTime(This->pCurrentSample, &time, &This->position);
/* Move header back to beginning */
if (attempts)
memmove(header, header+attempts, 4);
This->remaining_bytes = length - 4;
*flen -= (4 - dlen + attempts);
*fbuf += (4 - dlen + attempts);
return hr;
}
/* Destination sample should contain no data! But the source sample should */
assert(!dlen);
assert(*flen);
/* Find the next valid header.. it <SHOULD> be right here */
while (*flen > 3 && FAILED(parse_header(*fbuf, &length, &This->position)))
{
skip_data(fbuf, flen, 1);
}
/* Uh oh, no header found! */
if (*flen < 4)
{
assert(!length);
hr = copy_data(This->pCurrentSample, fbuf, flen, *flen);
return hr;
}
IMediaSample_SetTime(This->pCurrentSample, &time, &This->position);
if (*flen < length)
{
/* Partial copy: Copy 4 bytes, the rest will be copied by the logic for This->remaining_bytes */
This->remaining_bytes = length - 4;
copy_data(This->pCurrentSample, fbuf, flen, 4);
return hr;
}
hr = copy_data(This->pCurrentSample, fbuf, flen, length);
if (FAILED(hr))
{
WARN("Couldn't set data size to %lld\n", length);
This->skipbytes = length;
return hr;
}
out_append:
/* Optimize: Send multiple samples! */
while (*flen >= 4)
{
if (FAILED(parse_header(*fbuf, &length, &sampleduration)))
break;
if (length > *flen)
break;
if (FAILED(copy_data(This->pCurrentSample, fbuf, flen, length)))
break;
This->position += sampleduration;
sampleduration = 0;
IMediaSample_SetTime(This->pCurrentSample, &time, &This->position);
}
TRACE("Media time: %lld.%03lld\n", (This->position/10000000), (This->position/10000)%1000);
hr = OutputPin_SendSample(&pOutputPin->pin, This->pCurrentSample);
if (FAILED(hr))
WARN("Error sending sample (%x)\n", hr);
release:
IMediaSample_Release(This->pCurrentSample);
This->pCurrentSample = NULL;
return hr;
}
static HRESULT MPEGSplitter_process_sample(LPVOID iface, IMediaSample * pSample)
{
MPEGSplitterImpl *This = (MPEGSplitterImpl*)iface;
LPBYTE pbSrcStream = NULL;
BYTE *pbSrcStream;
DWORD cbSrcStream = 0;
DWORD used_bytes = 0;
REFERENCE_TIME tStart, tStop;
HRESULT hr;
BYTE *pbDstStream;
DWORD cbDstStream;
long remaining_bytes = 0;
Parser_OutputPin * pOutputPin;
DWORD bytes_written = 0;
HRESULT hr;
pOutputPin = (Parser_OutputPin*)This->Parser.ppPins[1];
......@@ -114,132 +346,47 @@ static HRESULT MPEGSplitter_process_sample(LPVOID iface, IMediaSample * pSample)
/* trace removed for performance reasons */
/* TRACE("(%p), %llu -> %llu\n", pSample, tStart, tStop); */
if (This->pCurrentSample)
bytes_written = IMediaSample_GetActualDataLength(This->pCurrentSample);
while (hr == S_OK && used_bytes < cbSrcStream)
/* Now, try to find a new header */
while (cbSrcStream > 0)
{
remaining_bytes = (long)(This->EndOfFile - BYTES_FROM_MEDIATIME(tStart) - used_bytes);
if (remaining_bytes <= 0)
break;
if (!This->pCurrentSample)
{
/* cache media sample until it is ready to be despatched
* (i.e. we reach the end of the chunk) */
hr = OutputPin_GetDeliveryBuffer(&pOutputPin->pin, &This->pCurrentSample, NULL, NULL, 0);
if (FAILED(hr))
if (FAILED(hr = OutputPin_GetDeliveryBuffer(&pOutputPin->pin, &This->pCurrentSample, NULL, NULL, 0)))
{
TRACE("Skipping sending sample due to error (%x)\n", hr);
This->pCurrentSample = NULL;
FIXME("Failed with hres: %08x!\n", hr);
break;
}
IMediaSample_SetTime(This->pCurrentSample, NULL, NULL);
hr = IMediaSample_SetActualDataLength(This->pCurrentSample, 0);
assert(hr == S_OK);
bytes_written = 0;
if (FAILED(hr = IMediaSample_SetActualDataLength(This->pCurrentSample, 0)))
goto fail;
IMediaSample_SetSyncPoint(This->pCurrentSample, TRUE);
}
hr = IMediaSample_GetPointer(This->pCurrentSample, &pbDstStream);
hr = FillBuffer(This, &pbSrcStream, &cbSrcStream);
if (SUCCEEDED(hr))
{
cbDstStream = IMediaSample_GetSize(This->pCurrentSample);
remaining_bytes = min(remaining_bytes, (long)(cbDstStream - bytes_written));
assert(remaining_bytes >= 0);
/* trace removed for performance reasons */
/* TRACE("remaining_bytes: %d, cbSrcStream: 0x%x\n", remaining_bytes, cbSrcStream); */
}
if (remaining_bytes <= (long)(cbSrcStream-used_bytes))
{
if (SUCCEEDED(hr))
{
memcpy(pbDstStream + bytes_written, pbSrcStream + used_bytes, remaining_bytes);
bytes_written += remaining_bytes;
continue;
hr = IMediaSample_SetActualDataLength(This->pCurrentSample, bytes_written);
assert(hr == S_OK);
used_bytes += remaining_bytes;
}
if (SUCCEEDED(hr))
{
REFERENCE_TIME tMPEGStart, tMPEGStop;
pOutputPin->dwSamplesProcessed = (BYTES_FROM_MEDIATIME(tStart)+used_bytes) / This->dwSampleSize;
tMPEGStart = (tStart + MEDIATIME_FROM_BYTES(used_bytes-bytes_written)) /
(This->fSamplesPerSec*This->dwSampleSize);
tMPEGStop = (tStart + MEDIATIME_FROM_BYTES(used_bytes)) /
(This->fSamplesPerSec*This->dwSampleSize);
/* If the start of the sample has a valid MPEG header, it's a
* sync point */
if (MPEGSplitter_head_check(pbDstStream) == MPEG_AUDIO_HEADER)
IMediaSample_SetSyncPoint(This->pCurrentSample, TRUE);
else
IMediaSample_SetSyncPoint(This->pCurrentSample, FALSE);
IMediaSample_SetTime(This->pCurrentSample, &tMPEGStart, &tMPEGStop);
hr = OutputPin_SendSample(&pOutputPin->pin, This->pCurrentSample);
if (FAILED(hr))
WARN("Error sending sample (%x)\n", hr);
}
if (This->pCurrentSample)
IMediaSample_Release(This->pCurrentSample);
This->pCurrentSample = NULL;
}
else
{
if (SUCCEEDED(hr))
{
memcpy(pbDstStream + bytes_written, pbSrcStream + used_bytes, cbSrcStream - used_bytes);
bytes_written += cbSrcStream - used_bytes;
IMediaSample_SetActualDataLength(This->pCurrentSample, bytes_written);
used_bytes += cbSrcStream - used_bytes;
}
}
fail:
FIXME("Failed with hres: %08x!\n", hr);
This->skipbytes += This->remaining_bytes;
This->remaining_bytes = 0;
IMediaSample_Release(This->pCurrentSample);
This->pCurrentSample = NULL;
}
if (BYTES_FROM_MEDIATIME(tStop) >= This->EndOfFile)
{
int i;
TRACE("End of file reached (%d out of %d bytes used)\n", used_bytes, cbSrcStream);
TRACE("End of file reached\n");
if (This->pCurrentSample)
{
/* Make sure the last bit of data, if any, is sent */
if (IMediaSample_GetActualDataLength(This->pCurrentSample) > 0)
{
REFERENCE_TIME tMPEGStart, tMPEGStop;
pOutputPin->dwSamplesProcessed = (BYTES_FROM_MEDIATIME(tStart)+used_bytes) / This->dwSampleSize;
tMPEGStart = (tStart + MEDIATIME_FROM_BYTES(used_bytes-bytes_written)) /
(This->fSamplesPerSec*This->dwSampleSize);
tMPEGStop = (tStart + MEDIATIME_FROM_BYTES(used_bytes)) /
(This->fSamplesPerSec*This->dwSampleSize);
if (MPEGSplitter_head_check(pbDstStream) == MPEG_AUDIO_HEADER)
IMediaSample_SetSyncPoint(This->pCurrentSample, TRUE);
else
IMediaSample_SetSyncPoint(This->pCurrentSample, FALSE);
IMediaSample_SetTime(This->pCurrentSample, &tMPEGStart, &tMPEGStop);
hr = OutputPin_SendSample(&pOutputPin->pin, This->pCurrentSample);
if (FAILED(hr))
WARN("Error sending sample (%x)\n", hr);
}
/* Drop last data, it's likely to be garbage anyway */
IMediaSample_SetActualDataLength(This->pCurrentSample, 0);
IMediaSample_Release(This->pCurrentSample);
This->pCurrentSample = NULL;
}
This->pCurrentSample = NULL;
for (i = 0; i < This->Parser.cStreams; i++)
{
......@@ -285,29 +432,13 @@ static HRESULT MPEGSplitter_query_accept(LPVOID iface, const AM_MEDIA_TYPE *pmt)
}
static const WCHAR wszAudioStream[] = {'A','u','d','i','o',0};
static const WCHAR wszVideoStream[] = {'V','i','d','e','o',0};
static HRESULT MPEGSplitter_init_audio(MPEGSplitterImpl *This, const BYTE *header, PIN_INFO *ppiOutput, AM_MEDIA_TYPE *pamt)
{
static const DWORD freqs[10] = { 44100, 48000, 32000, 22050, 24000,
16000, 11025, 12000, 8000, 0 };
static const DWORD tabsel_123[2][3][16] = {
{ {0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,},
{0,32,48,56, 64, 80, 96,112,128,160,192,224,256,320,384,},
{0,32,40,48, 56, 64, 80, 96,112,128,160,192,224,256,320,} },
{ {0,32,48,56,64,80,96,112,128,144,160,176,192,224,256,},
{0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,},
{0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,} }
};
WAVEFORMATEX *format;
int bitrate_index;
int freq_index;
int mode_ext;
int emphasis;
int padding;
int lsf = 1;
int mpeg1;
int layer;
......@@ -323,7 +454,7 @@ static HRESULT MPEGSplitter_init_audio(MPEGSplitterImpl *This, const BYTE *heade
pamt->subtype = MEDIASUBTYPE_MPEG1AudioPayload;
pamt->lSampleSize = 0;
pamt->bFixedSizeSamples = TRUE;
pamt->bFixedSizeSamples = FALSE;
pamt->bTemporalCompression = 0;
mpeg1 = (header[1]>>4)&0x1;
......@@ -333,11 +464,17 @@ static HRESULT MPEGSplitter_init_audio(MPEGSplitterImpl *This, const BYTE *heade
layer = 4-((header[1]>>1)&0x3);
bitrate_index = ((header[2]>>4)&0xf);
freq_index = ((header[2]>>2)&0x3) + (mpeg1?(lsf*3):6);
padding = ((header[2]>>1)&0x1);
mode = ((header[3]>>6)&0x3);
mode_ext = ((header[3]>>4)&0x3);
emphasis = ((header[3]>>0)&0x3);
if (!bitrate_index)
{
/* Set to highest bitrate so samples will fit in for sure */
FIXME("Variable-bitrate audio not fully supported.\n");
bitrate_index = 15;
}
pamt->cbFormat = ((layer==3)? sizeof(MPEGLAYER3WAVEFORMAT) :
sizeof(MPEG1WAVEFORMAT));
pamt->pbFormat = CoTaskMemAlloc(pamt->cbFormat);
......@@ -351,22 +488,15 @@ static HRESULT MPEGSplitter_init_audio(MPEGSplitterImpl *This, const BYTE *heade
format->nChannels = ((mode == 3) ? 1 : 2);
format->nSamplesPerSec = freqs[freq_index];
format->nAvgBytesPerSec = tabsel_123[lsf][layer-1][bitrate_index] * 1000 / 8;
if (format->nAvgBytesPerSec == 0)
{
WARN("Variable-bitrate audio is not supported.\n");
return E_FAIL;
}
if (layer == 3)
format->nBlockAlign = format->nAvgBytesPerSec * 8 * 144 /
(format->nSamplesPerSec<<lsf) +
(padding - 4);
(format->nSamplesPerSec<<lsf) + 1;
else if (layer == 2)
format->nBlockAlign = format->nAvgBytesPerSec * 8 * 144 /
format->nSamplesPerSec + (padding - 4);
format->nSamplesPerSec + 1;
else
format->nBlockAlign = ((format->nAvgBytesPerSec * 8 * 12 /
format->nSamplesPerSec + padding) << 2) - 4;
format->nBlockAlign = 4 * (format->nAvgBytesPerSec * 8 * 12 / format->nSamplesPerSec + 1);
format->wBitsPerSample = 0;
......@@ -377,9 +507,7 @@ static HRESULT MPEGSplitter_init_audio(MPEGSplitterImpl *This, const BYTE *heade
format->cbSize = MPEGLAYER3_WFX_EXTRA_BYTES;
mp3format->wID = MPEGLAYER3_ID_MPEG;
mp3format->fdwFlags = (padding ?
MPEGLAYER3_FLAG_PADDING_OFF :
MPEGLAYER3_FLAG_PADDING_ON);
mp3format->fdwFlags = MPEGLAYER3_FLAG_PADDING_ON;
mp3format->nBlockSize = format->nBlockAlign;
mp3format->nFramesPerBlock = 1;
......@@ -471,15 +599,21 @@ static HRESULT MPEGSplitter_pre_connect(IPin *iface, IPin *pConnectPin)
{
TRACE("%x:%x:%x:%x\n", header[0], header[1], header[2], header[3]);
/* No valid header yet; shift by a byte and check again */
memcpy(header, header+1, 3);
memmove(header, header+1, 3);
hr = IAsyncReader_SyncRead(pPin->pReader, pos++, 1, header + 3);
}
if (FAILED(hr))
return hr;
pos -= 4;
This->skipbytes = pos;
switch(streamtype)
{
case MPEG_AUDIO_HEADER:
{
LONGLONG duration = 0;
DWORD ticks = GetTickCount();
hr = MPEGSplitter_init_audio(This, header, &piOutput, &amt);
if (SUCCEEDED(hr))
{
......@@ -491,9 +625,6 @@ static HRESULT MPEGSplitter_pre_connect(IPin *iface, IPin *pConnectPin)
props.cbBuffer = 0x4000 / format->nBlockAlign *
format->nBlockAlign;
props.cBuffers = 1;
This->fSamplesPerSec = (float)format->nAvgBytesPerSec / (float)format->nBlockAlign;
This->dwSampleSize = format->nBlockAlign;
This->dwLength = total;
hr = Parser_AddPin(&(This->Parser), &piOutput, &props, &amt);
}
......@@ -502,8 +633,39 @@ static HRESULT MPEGSplitter_pre_connect(IPin *iface, IPin *pConnectPin)
if (amt.pbFormat)
CoTaskMemFree(amt.pbFormat);
ERR("Could not create pin for MPEG audio stream (%x)\n", hr);
break;
}
/* Check for idv1 tag, and remove it from stream if found */
hr = IAsyncReader_SyncRead(pPin->pReader, This->EndOfFile-128, 3, header+4);
if (FAILED(hr))
break;
if (!strncmp((char*)header+4, "TAG", 3))
This->EndOfFile -= 128;
/* http://mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm has a whole readup on audio headers */
while (pos < This->EndOfFile && SUCCEEDED(hr))
{
LONGLONG length = 0;
while (parse_header(header, &length, &duration))
{
/* No valid header yet; shift by a byte and check again */
memmove(header, header+1, 3);
hr = IAsyncReader_SyncRead(pPin->pReader, pos++, 1, header + 3);
if (FAILED(hr))
break;
}
if (SUCCEEDED(hr))
{
pos += length;
hr = IAsyncReader_SyncRead(pPin->pReader, pos, 4, header);
}
}
hr = S_OK;
TRACE("Duration: %lld seconds\n", duration / 10000000);
TRACE("Parsing took %u ms\n", GetTickCount() - ticks);
break;
}
case MPEG_VIDEO_HEADER:
FIXME("MPEG video processing not yet supported!\n");
hr = E_FAIL;
......@@ -516,6 +678,8 @@ static HRESULT MPEGSplitter_pre_connect(IPin *iface, IPin *pConnectPin)
default:
break;
}
This->remaining_bytes = 0;
This->position = 0;
return hr;
}
......
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