quartz: Parse audio packets in mpeg splitter to obtain the duration.
This commit is contained in:
Maarten Lankhorst
Alexandre Julliard
parent
8ad6049ac6
commit
b0c6a34358
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@ -57,8 +57,10 @@ typedef struct MPEGSplitterImpl
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ParserImpl Parser;
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IMediaSample *pCurrentSample;
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LONGLONG EndOfFile;
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DWORD dwSampleSize, dwLength;
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FLOAT fSamplesPerSec;
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LONGLONG duration;
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LONGLONG position;
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DWORD skipbytes;
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DWORD remaining_bytes;
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} MPEGSplitterImpl;
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static int MPEGSplitter_head_check(const BYTE *header)
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@ -87,20 +89,250 @@ static int MPEGSplitter_head_check(const BYTE *header)
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return MPEG_NO_HEADER;
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}
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static const WCHAR wszAudioStream[] = {'A','u','d','i','o',0};
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static const WCHAR wszVideoStream[] = {'V','i','d','e','o',0};
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static const DWORD freqs[10] = { 44100, 48000, 32000, 22050, 24000, 16000, 11025, 12000, 8000, 0 };
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static const DWORD tabsel_123[2][3][16] = {
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{ {0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,},
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{0,32,48,56, 64, 80, 96,112,128,160,192,224,256,320,384,},
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{0,32,40,48, 56, 64, 80, 96,112,128,160,192,224,256,320,} },
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{ {0,32,48,56,64,80,96,112,128,144,160,176,192,224,256,},
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{0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,},
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{0,8,16,24,32,40,48,56,64,80,96,112,128,144,160,} }
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};
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static HRESULT parse_header(BYTE *header, LONGLONG *plen, LONGLONG *pduration)
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{
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LONGLONG duration = *pduration;
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int bitrate_index, freq_index, mode_ext, emphasis, lsf = 1, mpeg1, layer, mode, padding, bitrate, length;
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if (!(header[0] == 0xff && ((header[1]>>5)&0x7) == 0x7 &&
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((header[1]>>1)&0x3) != 0 && ((header[2]>>4)&0xf) != 0xf &&
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((header[2]>>2)&0x3) != 0x3))
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{
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WARN("Not a valid header: %02x:%02x\n", header[0], header[1]);
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return E_INVALIDARG;
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}
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mpeg1 = (header[1]>>4)&0x1;
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if (mpeg1)
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lsf = ((header[1]>>3)&0x1)^1;
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layer = 4-((header[1]>>1)&0x3);
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bitrate_index = ((header[2]>>4)&0xf);
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freq_index = ((header[2]>>2)&0x3) + (mpeg1?(lsf*3):6);
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padding = ((header[2]>>1)&0x1);
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mode = ((header[3]>>6)&0x3);
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mode_ext = ((header[3]>>4)&0x3);
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emphasis = ((header[3]>>0)&0x3);
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bitrate = tabsel_123[lsf][layer-1][bitrate_index] * 1000;
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if (layer == 3 || layer == 2)
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length = 144 * bitrate / freqs[freq_index] + padding;
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else
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length = 4 * (12 * bitrate / freqs[freq_index] + padding);
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duration = (ULONGLONG)10000000 * (ULONGLONG)(length) / (ULONGLONG)(bitrate/8);
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*plen = length;
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*pduration += duration;
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return S_OK;
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}
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static void skip_data(BYTE** from, DWORD *flen, DWORD amount)
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{
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*flen -= amount;
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if (!*flen)
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*from = NULL;
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else
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*from += amount;
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}
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static HRESULT copy_data(IMediaSample *to, BYTE** from, DWORD *flen, DWORD amount)
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{
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HRESULT hr = S_OK;
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BYTE *ptr = NULL;
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DWORD oldlength = IMediaSample_GetActualDataLength(to);
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hr = IMediaSample_SetActualDataLength(to, oldlength + amount);
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if (FAILED(hr))
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{
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if (!oldlength || oldlength <= 4)
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WARN("Could not set require length\n");
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return hr;
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}
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IMediaSample_GetPointer(to, &ptr);
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memcpy(ptr + oldlength, *from, amount);
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skip_data(from, flen, amount);
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return hr;
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}
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static HRESULT FillBuffer(MPEGSplitterImpl *This, BYTE** fbuf, DWORD *flen)
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{
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Parser_OutputPin * pOutputPin = (Parser_OutputPin*)This->Parser.ppPins[1];
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LONGLONG length = 0;
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HRESULT hr = S_OK;
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DWORD dlen;
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LONGLONG time = This->position, sampleduration = 0;
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TRACE("Source length: %u, skip length: %u, remaining: %u\n", *flen, This->skipbytes, This->remaining_bytes);
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/* Case where bytes are skipped */
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if (This->skipbytes)
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{
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DWORD skip = min(This->skipbytes, *flen);
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skip_data(fbuf, flen, skip);
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This->skipbytes -= skip;
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return S_OK;
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}
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/* Case where there is already an output sample being held */
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if (This->remaining_bytes)
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{
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DWORD towrite = min(This->remaining_bytes, *flen);
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hr = copy_data(This->pCurrentSample, fbuf, flen, towrite);
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if (FAILED(hr))
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{
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WARN("Could not resize sample: %08x\n", hr);
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goto release;
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}
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This->remaining_bytes -= towrite;
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if (This->remaining_bytes)
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return hr;
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/* Optimize: Try appending more samples to the stream */
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goto out_append;
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}
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/* Special case, last source sample might (or might not have) had a header, and now we want to retrieve it */
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dlen = IMediaSample_GetActualDataLength(This->pCurrentSample);
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if (dlen > 0 && dlen < 4)
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{
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BYTE *header = NULL;
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DWORD attempts = 0;
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/* Shoot anyone with a small sample! */
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assert(*flen >= 6);
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hr = IMediaSample_GetPointer(This->pCurrentSample, &header);
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if (SUCCEEDED(hr))
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hr = IMediaSample_SetActualDataLength(This->pCurrentSample, 7);
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if (FAILED(hr))
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{
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WARN("Could not resize sample: %08x\n", hr);
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goto release;
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}
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memcpy(header + dlen, *fbuf, 6 - dlen);
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while (FAILED(parse_header(header+attempts, &length, &This->position)) && attempts < dlen)
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{
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attempts++;
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}
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/* No header found */
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if (attempts == dlen)
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{
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hr = IMediaSample_SetActualDataLength(This->pCurrentSample, 0);
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return hr;
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}
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IMediaSample_SetActualDataLength(This->pCurrentSample, 4);
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IMediaSample_SetTime(This->pCurrentSample, &time, &This->position);
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/* Move header back to beginning */
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if (attempts)
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memmove(header, header+attempts, 4);
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This->remaining_bytes = length - 4;
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*flen -= (4 - dlen + attempts);
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*fbuf += (4 - dlen + attempts);
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return hr;
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}
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/* Destination sample should contain no data! But the source sample should */
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assert(!dlen);
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assert(*flen);
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/* Find the next valid header.. it <SHOULD> be right here */
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while (*flen > 3 && FAILED(parse_header(*fbuf, &length, &This->position)))
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{
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skip_data(fbuf, flen, 1);
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}
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/* Uh oh, no header found! */
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if (*flen < 4)
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{
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assert(!length);
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hr = copy_data(This->pCurrentSample, fbuf, flen, *flen);
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return hr;
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}
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IMediaSample_SetTime(This->pCurrentSample, &time, &This->position);
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if (*flen < length)
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{
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/* Partial copy: Copy 4 bytes, the rest will be copied by the logic for This->remaining_bytes */
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This->remaining_bytes = length - 4;
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copy_data(This->pCurrentSample, fbuf, flen, 4);
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return hr;
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}
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hr = copy_data(This->pCurrentSample, fbuf, flen, length);
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if (FAILED(hr))
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{
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WARN("Couldn't set data size to %lld\n", length);
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This->skipbytes = length;
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return hr;
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}
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out_append:
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/* Optimize: Send multiple samples! */
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while (*flen >= 4)
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{
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if (FAILED(parse_header(*fbuf, &length, &sampleduration)))
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break;
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if (length > *flen)
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break;
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if (FAILED(copy_data(This->pCurrentSample, fbuf, flen, length)))
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break;
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This->position += sampleduration;
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sampleduration = 0;
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IMediaSample_SetTime(This->pCurrentSample, &time, &This->position);
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}
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TRACE("Media time: %lld.%03lld\n", (This->position/10000000), (This->position/10000)%1000);
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hr = OutputPin_SendSample(&pOutputPin->pin, This->pCurrentSample);
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if (FAILED(hr))
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WARN("Error sending sample (%x)\n", hr);
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release:
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IMediaSample_Release(This->pCurrentSample);
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This->pCurrentSample = NULL;
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return hr;
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}
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static HRESULT MPEGSplitter_process_sample(LPVOID iface, IMediaSample * pSample)
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{
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MPEGSplitterImpl *This = (MPEGSplitterImpl*)iface;
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LPBYTE pbSrcStream = NULL;
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BYTE *pbSrcStream;
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DWORD cbSrcStream = 0;
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DWORD used_bytes = 0;
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REFERENCE_TIME tStart, tStop;
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HRESULT hr;
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BYTE *pbDstStream;
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DWORD cbDstStream;
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long remaining_bytes = 0;
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Parser_OutputPin * pOutputPin;
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DWORD bytes_written = 0;
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HRESULT hr;
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pOutputPin = (Parser_OutputPin*)This->Parser.ppPins[1];
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@ -114,132 +346,47 @@ static HRESULT MPEGSplitter_process_sample(LPVOID iface, IMediaSample * pSample)
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/* trace removed for performance reasons */
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/* TRACE("(%p), %llu -> %llu\n", pSample, tStart, tStop); */
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if (This->pCurrentSample)
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bytes_written = IMediaSample_GetActualDataLength(This->pCurrentSample);
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while (hr == S_OK && used_bytes < cbSrcStream)
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/* Now, try to find a new header */
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while (cbSrcStream > 0)
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{
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remaining_bytes = (long)(This->EndOfFile - BYTES_FROM_MEDIATIME(tStart) - used_bytes);
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if (remaining_bytes <= 0)
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break;
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if (!This->pCurrentSample)
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{
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/* cache media sample until it is ready to be despatched
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* (i.e. we reach the end of the chunk) */
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hr = OutputPin_GetDeliveryBuffer(&pOutputPin->pin, &This->pCurrentSample, NULL, NULL, 0);
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if (FAILED(hr))
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if (FAILED(hr = OutputPin_GetDeliveryBuffer(&pOutputPin->pin, &This->pCurrentSample, NULL, NULL, 0)))
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{
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TRACE("Skipping sending sample due to error (%x)\n", hr);
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This->pCurrentSample = NULL;
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FIXME("Failed with hres: %08x!\n", hr);
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break;
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}
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IMediaSample_SetTime(This->pCurrentSample, NULL, NULL);
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hr = IMediaSample_SetActualDataLength(This->pCurrentSample, 0);
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assert(hr == S_OK);
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bytes_written = 0;
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if (FAILED(hr = IMediaSample_SetActualDataLength(This->pCurrentSample, 0)))
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goto fail;
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IMediaSample_SetSyncPoint(This->pCurrentSample, TRUE);
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}
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hr = IMediaSample_GetPointer(This->pCurrentSample, &pbDstStream);
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hr = FillBuffer(This, &pbSrcStream, &cbSrcStream);
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if (SUCCEEDED(hr))
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{
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cbDstStream = IMediaSample_GetSize(This->pCurrentSample);
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remaining_bytes = min(remaining_bytes, (long)(cbDstStream - bytes_written));
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continue;
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assert(remaining_bytes >= 0);
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/* trace removed for performance reasons */
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/* TRACE("remaining_bytes: %d, cbSrcStream: 0x%x\n", remaining_bytes, cbSrcStream); */
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}
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if (remaining_bytes <= (long)(cbSrcStream-used_bytes))
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{
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if (SUCCEEDED(hr))
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{
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memcpy(pbDstStream + bytes_written, pbSrcStream + used_bytes, remaining_bytes);
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bytes_written += remaining_bytes;
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hr = IMediaSample_SetActualDataLength(This->pCurrentSample, bytes_written);
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assert(hr == S_OK);
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used_bytes += remaining_bytes;
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}
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if (SUCCEEDED(hr))
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{
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REFERENCE_TIME tMPEGStart, tMPEGStop;
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pOutputPin->dwSamplesProcessed = (BYTES_FROM_MEDIATIME(tStart)+used_bytes) / This->dwSampleSize;
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tMPEGStart = (tStart + MEDIATIME_FROM_BYTES(used_bytes-bytes_written)) /
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(This->fSamplesPerSec*This->dwSampleSize);
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tMPEGStop = (tStart + MEDIATIME_FROM_BYTES(used_bytes)) /
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(This->fSamplesPerSec*This->dwSampleSize);
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/* If the start of the sample has a valid MPEG header, it's a
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* sync point */
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if (MPEGSplitter_head_check(pbDstStream) == MPEG_AUDIO_HEADER)
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IMediaSample_SetSyncPoint(This->pCurrentSample, TRUE);
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else
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IMediaSample_SetSyncPoint(This->pCurrentSample, FALSE);
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IMediaSample_SetTime(This->pCurrentSample, &tMPEGStart, &tMPEGStop);
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hr = OutputPin_SendSample(&pOutputPin->pin, This->pCurrentSample);
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if (FAILED(hr))
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WARN("Error sending sample (%x)\n", hr);
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}
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if (This->pCurrentSample)
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IMediaSample_Release(This->pCurrentSample);
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This->pCurrentSample = NULL;
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}
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else
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{
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if (SUCCEEDED(hr))
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{
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memcpy(pbDstStream + bytes_written, pbSrcStream + used_bytes, cbSrcStream - used_bytes);
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bytes_written += cbSrcStream - used_bytes;
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IMediaSample_SetActualDataLength(This->pCurrentSample, bytes_written);
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used_bytes += cbSrcStream - used_bytes;
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}
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}
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fail:
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FIXME("Failed with hres: %08x!\n", hr);
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This->skipbytes += This->remaining_bytes;
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This->remaining_bytes = 0;
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IMediaSample_Release(This->pCurrentSample);
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This->pCurrentSample = NULL;
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}
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if (BYTES_FROM_MEDIATIME(tStop) >= This->EndOfFile)
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{
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int i;
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TRACE("End of file reached (%d out of %d bytes used)\n", used_bytes, cbSrcStream);
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TRACE("End of file reached\n");
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if (This->pCurrentSample)
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{
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/* Make sure the last bit of data, if any, is sent */
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if (IMediaSample_GetActualDataLength(This->pCurrentSample) > 0)
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{
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REFERENCE_TIME tMPEGStart, tMPEGStop;
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pOutputPin->dwSamplesProcessed = (BYTES_FROM_MEDIATIME(tStart)+used_bytes) / This->dwSampleSize;
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tMPEGStart = (tStart + MEDIATIME_FROM_BYTES(used_bytes-bytes_written)) /
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(This->fSamplesPerSec*This->dwSampleSize);
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tMPEGStop = (tStart + MEDIATIME_FROM_BYTES(used_bytes)) /
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(This->fSamplesPerSec*This->dwSampleSize);
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if (MPEGSplitter_head_check(pbDstStream) == MPEG_AUDIO_HEADER)
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IMediaSample_SetSyncPoint(This->pCurrentSample, TRUE);
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else
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IMediaSample_SetSyncPoint(This->pCurrentSample, FALSE);
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IMediaSample_SetTime(This->pCurrentSample, &tMPEGStart, &tMPEGStop);
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hr = OutputPin_SendSample(&pOutputPin->pin, This->pCurrentSample);
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if (FAILED(hr))
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WARN("Error sending sample (%x)\n", hr);
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}
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/* Drop last data, it's likely to be garbage anyway */
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IMediaSample_SetActualDataLength(This->pCurrentSample, 0);
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IMediaSample_Release(This->pCurrentSample);
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This->pCurrentSample = NULL;
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}
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This->pCurrentSample = NULL;
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for (i = 0; i < This->Parser.cStreams; i++)
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{
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@ -285,29 +432,13 @@ static HRESULT MPEGSplitter_query_accept(LPVOID iface, const AM_MEDIA_TYPE *pmt)
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}
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static const WCHAR wszAudioStream[] = {'A','u','d','i','o',0};
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static const WCHAR wszVideoStream[] = {'V','i','d','e','o',0};
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static HRESULT MPEGSplitter_init_audio(MPEGSplitterImpl *This, const BYTE *header, PIN_INFO *ppiOutput, AM_MEDIA_TYPE *pamt)
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{
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static const DWORD freqs[10] = { 44100, 48000, 32000, 22050, 24000,
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16000, 11025, 12000, 8000, 0 };
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static const DWORD tabsel_123[2][3][16] = {
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{ {0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,},
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{0,32,48,56, 64, 80, 96,112,128,160,192,224,256,320,384,},
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{0,32,40,48, 56, 64, 80, 96,112,128,160,192,224,256,320,} },
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{ {0,32,48,56,64,80,96,112,128,144,160,176,192,224,256,},
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{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;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue