mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-23 08:46:40 +00:00
Handle many more edge cases in dshowvideosink.
Instrument various codepaths with debug messages. Handle (as best as I could see how - it's pretty nasty) moving a video window to another monitor. Add listening for directshow events.
This commit is contained in:
Michael Smith
parent
e3fcf51e2c
commit
2e401cc71d
4 changed files with 2045 additions and 1833 deletions
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@ -1,281 +1,414 @@
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/* GStreamer
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* Copyright (C) 2008 Pioneers of the Inevitable <songbird@songbirdnest.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "dshowvideofakesrc.h"
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// {A0A5CF33-BD0C-4158-9A56-3011DEE3AF6B}
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const GUID CLSID_VideoFakeSrc =
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{ 0xa0a5cf33, 0xbd0c, 0x4158, { 0x9a, 0x56, 0x30, 0x11, 0xde, 0xe3, 0xaf, 0x6b } };
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/* output pin*/
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VideoFakeSrcPin::VideoFakeSrcPin (CBaseFilter *pFilter, CCritSec *sec, HRESULT *hres):
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CBaseOutputPin("VideoFakeSrcPin", pFilter, sec, hres, L"output")
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{
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}
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VideoFakeSrcPin::~VideoFakeSrcPin()
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{
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}
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HRESULT VideoFakeSrcPin::GetMediaType(int iPosition, CMediaType *pMediaType)
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{
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GST_DEBUG ("GetMediaType(%d) called", iPosition);
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if(iPosition == 0) {
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*pMediaType = m_MediaType;
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return S_OK;
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}
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return VFW_S_NO_MORE_ITEMS;
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}
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/* This seems to be called to notify us of the actual media type being used,
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* even though SetMediaType isn't called. How bizarre! */
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HRESULT VideoFakeSrcPin::CheckMediaType(const CMediaType *pmt)
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{
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GST_DEBUG ("CheckMediaType called: %p", pmt);
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/* The video renderer will request a different stride, which we must accept.
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* So, we accept arbitrary strides (and do memcpy() to convert if needed),
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* and require the rest of the media type to match
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*/
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if (IsEqualGUID(pmt->majortype,m_MediaType.majortype) &&
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IsEqualGUID(pmt->subtype,m_MediaType.subtype) &&
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IsEqualGUID(pmt->formattype,m_MediaType.formattype) &&
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pmt->cbFormat >= m_MediaType.cbFormat)
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{
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if (IsEqualGUID(pmt->formattype, FORMAT_VideoInfo)) {
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VIDEOINFOHEADER *newvh = (VIDEOINFOHEADER *)pmt->pbFormat;
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VIDEOINFOHEADER *curvh = (VIDEOINFOHEADER *)m_MediaType.pbFormat;
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if ((memcmp ((void *)&newvh->rcSource, (void *)&curvh->rcSource, sizeof (RECT)) == 0) &&
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(memcmp ((void *)&newvh->rcTarget, (void *)&curvh->rcTarget, sizeof (RECT)) == 0) &&
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(newvh->bmiHeader.biCompression == curvh->bmiHeader.biCompression) &&
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(newvh->bmiHeader.biHeight == curvh->bmiHeader.biHeight) &&
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(newvh->bmiHeader.biWidth >= curvh->bmiHeader.biWidth))
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{
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GST_DEBUG ("CheckMediaType has same media type, width %d (%d image)", newvh->bmiHeader.biWidth, curvh->bmiHeader.biWidth);
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/* OK, compatible! */
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return S_OK;
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}
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else {
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GST_WARNING ("Looked similar, but aren't...");
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}
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}
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}
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GST_WARNING ("Different media types, FAILING!");
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return S_FALSE;
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}
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HRESULT VideoFakeSrcPin::DecideBufferSize (IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest)
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{
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ALLOCATOR_PROPERTIES properties;
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GST_DEBUG ("Required allocator properties: %d, %d, %d, %d",
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ppropInputRequest->cbAlign, ppropInputRequest->cbBuffer,
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ppropInputRequest->cbPrefix, ppropInputRequest->cBuffers);
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ppropInputRequest->cbBuffer = m_SampleSize;
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ppropInputRequest->cBuffers = 1;
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/* First set the buffer descriptions we're interested in */
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HRESULT hres = pAlloc->SetProperties(ppropInputRequest, &properties);
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GST_DEBUG ("Actual Allocator properties: %d, %d, %d, %d",
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properties.cbAlign, properties.cbBuffer,
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properties.cbPrefix, properties.cBuffers);
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/* Then actually allocate the buffers */
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pAlloc->Commit();
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return S_OK;
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}
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STDMETHODIMP
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VideoFakeSrcPin::Notify(IBaseFilter * pSender, Quality q)
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{
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/* Implementing this usefully is not required, but the base class
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* has an assertion here... */
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/* TODO: Map this to GStreamer QOS events? */
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return E_NOTIMPL;
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}
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STDMETHODIMP VideoFakeSrcPin::SetMediaType (AM_MEDIA_TYPE *pmt)
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{
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m_MediaType.Set (*pmt);
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m_SampleSize = m_MediaType.GetSampleSize();
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GST_DEBUG ("SetMediaType called. SampleSize is %d", m_SampleSize);
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return S_OK;
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}
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/* If the destination buffer is a different shape (strides, etc.) from the source
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* buffer, we have to copy. Do that here, for supported video formats.
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*
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* TODO: When possible (when these things DON'T differ), we should buffer-alloc the
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* final output buffer, and not do this copy */
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STDMETHODIMP VideoFakeSrcPin::CopyToDestinationBuffer (byte *srcbuf, byte *dstbuf)
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{
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VIDEOINFOHEADER *vh = (VIDEOINFOHEADER *)m_MediaType.pbFormat;
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GST_DEBUG ("Rendering a frame");
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byte *src, *dst;
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int dststride, srcstride, rows;
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guint32 fourcc = vh->bmiHeader.biCompression;
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/* biHeight is always negative; we don't want that. */
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int height = ABS (vh->bmiHeader.biHeight);
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int width = vh->bmiHeader.biWidth;
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/* YUY2 is the preferred layout for DirectShow, so we will probably get this
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* most of the time */
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if ((fourcc == GST_MAKE_FOURCC ('Y', 'U', 'Y', '2')) ||
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(fourcc == GST_MAKE_FOURCC ('Y', 'U', 'Y', 'V')) ||
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(fourcc == GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y')))
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{
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/* Nice and simple */
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int srcstride = GST_ROUND_UP_4 (vh->rcSource.right * 2);
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int dststride = width * 2;
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for (int i = 0; i < height; i++) {
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memcpy (dstbuf + dststride * i, srcbuf + srcstride * i, srcstride);
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}
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}
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else if (fourcc == GST_MAKE_FOURCC ('Y', 'V', '1', '2')) {
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for (int component = 0; component < 3; component++) {
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// TODO: Get format properly rather than hard-coding it. Use gst_video_* APIs *?
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if (component == 0) {
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srcstride = GST_ROUND_UP_4 (vh->rcSource.right);
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src = srcbuf;
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}
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else {
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srcstride = GST_ROUND_UP_4 ( GST_ROUND_UP_2 (vh->rcSource.right) / 2);
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if (component == 1)
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src = srcbuf + GST_ROUND_UP_4 (vh->rcSource.right) * GST_ROUND_UP_2 (vh->rcSource.bottom);
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else
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src = srcbuf + GST_ROUND_UP_4 (vh->rcSource.right) * GST_ROUND_UP_2 (vh->rcSource.bottom) +
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srcstride * (GST_ROUND_UP_2 (vh->rcSource.bottom) / 2);
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}
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/* Is there a better way to do this? This is ICK! */
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if (component == 0) {
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dststride = width;
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dst = dstbuf;
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rows = height;
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} else if (component == 1) {
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dststride = width / 2;
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dst = dstbuf + width * height;
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rows = height/2;
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}
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else {
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dststride = width / 2;
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dst = dstbuf + width * height +
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width/2 * height/2;
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rows = height/2;
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}
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for (int i = 0; i < rows; i++) {
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memcpy (dst + i * dststride, src + i * srcstride, srcstride);
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}
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}
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}
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return S_OK;
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}
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GstFlowReturn VideoFakeSrcPin::PushBuffer(GstBuffer *buffer)
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{
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IMediaSample *pSample = NULL;
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byte *data = GST_BUFFER_DATA (buffer);
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/* TODO: Use more of the arguments here? */
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HRESULT hres = GetDeliveryBuffer(&pSample, NULL, NULL, 0);
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if (SUCCEEDED (hres))
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{
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BYTE *sample_buffer;
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AM_MEDIA_TYPE *mediatype;
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pSample->GetPointer(&sample_buffer);
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pSample->GetMediaType(&mediatype);
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if (mediatype)
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SetMediaType (mediatype);
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if(sample_buffer)
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{
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/* Copy to the destination stride.
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* This is not just a simple memcpy because of the different strides.
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* TODO: optimise for the same-stride case and avoid the copy entirely.
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*/
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CopyToDestinationBuffer (data, sample_buffer);
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}
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pSample->SetDiscontinuity(FALSE); /* Decoded frame; unimportant */
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pSample->SetSyncPoint(TRUE); /* Decoded frame; always a valid syncpoint */
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pSample->SetPreroll(FALSE); /* For non-displayed frames.
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Not used in GStreamer */
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/* Disable synchronising on this sample. We instead let GStreamer handle
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* this at a higher level, inside BaseSink. */
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pSample->SetTime(NULL, NULL);
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hres = Deliver(pSample);
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pSample->Release();
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if (SUCCEEDED (hres))
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return GST_FLOW_OK;
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else if (hres == VFW_E_NOT_CONNECTED)
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return GST_FLOW_NOT_LINKED;
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else
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return GST_FLOW_ERROR;
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}
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else {
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GST_WARNING ("Could not get sample for delivery to sink: %x", hres);
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return GST_FLOW_ERROR;
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}
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}
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STDMETHODIMP VideoFakeSrcPin::Flush ()
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{
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DeliverBeginFlush();
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DeliverEndFlush();
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return S_OK;
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}
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VideoFakeSrc::VideoFakeSrc() : CBaseFilter("VideoFakeSrc", NULL, &m_critsec, CLSID_VideoFakeSrc)
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{
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HRESULT hr = S_OK;
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m_pOutputPin = new VideoFakeSrcPin ((CSource *)this, &m_critsec, &hr);
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}
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int VideoFakeSrc::GetPinCount()
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{
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return 1;
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}
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CBasePin *VideoFakeSrc::GetPin(int n)
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{
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return (CBasePin *)m_pOutputPin;
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}
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VideoFakeSrcPin *VideoFakeSrc::GetOutputPin()
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{
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return m_pOutputPin;
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}
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/* GStreamer
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* Copyright (C) 2008 Pioneers of the Inevitable <songbird@songbirdnest.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "dshowvideofakesrc.h"
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GST_DEBUG_CATEGORY_EXTERN (dshowvideosink_debug);
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#define GST_CAT_DEFAULT dshowvideosink_debug
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// {A0A5CF33-BD0C-4158-9A56-3011DEE3AF6B}
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const GUID CLSID_VideoFakeSrc =
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{ 0xa0a5cf33, 0xbd0c, 0x4158, { 0x9a, 0x56, 0x30, 0x11, 0xde, 0xe3, 0xaf, 0x6b } };
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/* output pin*/
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VideoFakeSrcPin::VideoFakeSrcPin (CBaseFilter *pFilter, CCritSec *sec, HRESULT *hres):
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CDynamicOutputPin("VideoFakeSrcPin", pFilter, sec, hres, L"output")
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{
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}
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VideoFakeSrcPin::~VideoFakeSrcPin()
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{
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}
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HRESULT VideoFakeSrcPin::GetMediaType(int iPosition, CMediaType *pMediaType)
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{
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GST_DEBUG ("GetMediaType(%d) called", iPosition);
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if(iPosition == 0) {
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*pMediaType = m_MediaType;
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return S_OK;
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}
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return VFW_S_NO_MORE_ITEMS;
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}
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/* This seems to be called to notify us of the actual media type being used,
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* even though SetMediaType isn't called. How bizarre! */
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HRESULT VideoFakeSrcPin::CheckMediaType(const CMediaType *pmt)
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{
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GST_DEBUG ("CheckMediaType called: %p", pmt);
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/* The video renderer will request a different stride, which we must accept.
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* So, we accept arbitrary strides (and do memcpy() to convert if needed),
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* and require the rest of the media type to match
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*/
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if (IsEqualGUID(pmt->majortype,m_MediaType.majortype) &&
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IsEqualGUID(pmt->subtype,m_MediaType.subtype) &&
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IsEqualGUID(pmt->formattype,m_MediaType.formattype) &&
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pmt->cbFormat >= m_MediaType.cbFormat)
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{
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if (IsEqualGUID(pmt->formattype, FORMAT_VideoInfo)) {
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VIDEOINFOHEADER *newvh = (VIDEOINFOHEADER *)pmt->pbFormat;
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VIDEOINFOHEADER *curvh = (VIDEOINFOHEADER *)m_MediaType.pbFormat;
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if ((memcmp ((void *)&newvh->rcSource, (void *)&curvh->rcSource, sizeof (RECT)) == 0) &&
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(memcmp ((void *)&newvh->rcTarget, (void *)&curvh->rcTarget, sizeof (RECT)) == 0) &&
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(newvh->bmiHeader.biCompression == curvh->bmiHeader.biCompression) &&
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(newvh->bmiHeader.biHeight == curvh->bmiHeader.biHeight) &&
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(newvh->bmiHeader.biWidth >= curvh->bmiHeader.biWidth))
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{
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GST_DEBUG ("CheckMediaType has same media type, width %d (%d image)", newvh->bmiHeader.biWidth, curvh->bmiHeader.biWidth);
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/* OK, compatible! */
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return S_OK;
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}
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else {
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GST_WARNING ("Looked similar, but aren't...");
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}
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}
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}
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GST_WARNING ("Different media types, FAILING!");
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return S_FALSE;
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}
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HRESULT VideoFakeSrcPin::DecideBufferSize (IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest)
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{
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ALLOCATOR_PROPERTIES properties;
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GST_DEBUG ("Required allocator properties: %d, %d, %d, %d",
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ppropInputRequest->cbAlign, ppropInputRequest->cbBuffer,
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ppropInputRequest->cbPrefix, ppropInputRequest->cBuffers);
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ppropInputRequest->cbBuffer = m_SampleSize;
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ppropInputRequest->cBuffers = 1;
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/* First set the buffer descriptions we're interested in */
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HRESULT hres = pAlloc->SetProperties(ppropInputRequest, &properties);
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GST_DEBUG ("Actual Allocator properties: %d, %d, %d, %d",
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properties.cbAlign, properties.cbBuffer,
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properties.cbPrefix, properties.cBuffers);
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/* Then actually allocate the buffers */
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hres = pAlloc->Commit();
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GST_DEBUG ("Allocator commit returned %x", hres);
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return S_OK;
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}
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STDMETHODIMP
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VideoFakeSrcPin::Notify(IBaseFilter * pSender, Quality q)
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{
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/* Implementing this usefully is not required, but the base class
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* has an assertion here... */
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/* TODO: Map this to GStreamer QOS events? */
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return E_NOTIMPL;
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}
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STDMETHODIMP VideoFakeSrcPin::SetMediaType (AM_MEDIA_TYPE *pmt)
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{
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m_MediaType.Set (*pmt);
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m_SampleSize = m_MediaType.GetSampleSize();
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GST_DEBUG ("SetMediaType called. SampleSize is %d", m_SampleSize);
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return S_OK;
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}
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/* If the destination buffer is a different shape (strides, etc.) from the source
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* buffer, we have to copy. Do that here, for supported video formats.
|
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*
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* TODO: When possible (when these things DON'T differ), we should buffer-alloc the
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* final output buffer, and not do this copy */
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STDMETHODIMP VideoFakeSrcPin::CopyToDestinationBuffer (byte *srcbuf, byte *dstbuf)
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{
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VIDEOINFOHEADER *vh = (VIDEOINFOHEADER *)m_MediaType.pbFormat;
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GST_DEBUG ("Rendering a frame");
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byte *src, *dst;
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int dststride, srcstride, rows;
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guint32 fourcc = vh->bmiHeader.biCompression;
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/* biHeight is always negative; we don't want that. */
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int height = ABS (vh->bmiHeader.biHeight);
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int width = vh->bmiHeader.biWidth;
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/* YUY2 is the preferred layout for DirectShow, so we will probably get this
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* most of the time */
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if ((fourcc == GST_MAKE_FOURCC ('Y', 'U', 'Y', '2')) ||
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(fourcc == GST_MAKE_FOURCC ('Y', 'U', 'Y', 'V')) ||
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(fourcc == GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y')))
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{
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/* Nice and simple */
|
||||
int srcstride = GST_ROUND_UP_4 (vh->rcSource.right * 2);
|
||||
int dststride = width * 2;
|
||||
|
||||
for (int i = 0; i < height; i++) {
|
||||
memcpy (dstbuf + dststride * i, srcbuf + srcstride * i, srcstride);
|
||||
}
|
||||
}
|
||||
else if (fourcc == GST_MAKE_FOURCC ('Y', 'V', '1', '2')) {
|
||||
for (int component = 0; component < 3; component++) {
|
||||
// TODO: Get format properly rather than hard-coding it. Use gst_video_* APIs *?
|
||||
if (component == 0) {
|
||||
srcstride = GST_ROUND_UP_4 (vh->rcSource.right);
|
||||
src = srcbuf;
|
||||
}
|
||||
else {
|
||||
srcstride = GST_ROUND_UP_4 ( GST_ROUND_UP_2 (vh->rcSource.right) / 2);
|
||||
if (component == 1)
|
||||
src = srcbuf + GST_ROUND_UP_4 (vh->rcSource.right) * GST_ROUND_UP_2 (vh->rcSource.bottom);
|
||||
else
|
||||
src = srcbuf + GST_ROUND_UP_4 (vh->rcSource.right) * GST_ROUND_UP_2 (vh->rcSource.bottom) +
|
||||
srcstride * (GST_ROUND_UP_2 (vh->rcSource.bottom) / 2);
|
||||
}
|
||||
|
||||
/* Is there a better way to do this? This is ICK! */
|
||||
if (component == 0) {
|
||||
dststride = width;
|
||||
dst = dstbuf;
|
||||
rows = height;
|
||||
} else if (component == 1) {
|
||||
dststride = width / 2;
|
||||
dst = dstbuf + width * height;
|
||||
rows = height/2;
|
||||
}
|
||||
else {
|
||||
dststride = width / 2;
|
||||
dst = dstbuf + width * height +
|
||||
width/2 * height/2;
|
||||
rows = height/2;
|
||||
}
|
||||
|
||||
for (int i = 0; i < rows; i++) {
|
||||
memcpy (dst + i * dststride, src + i * srcstride, srcstride);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return S_OK;
|
||||
}
|
||||
|
||||
STDMETHODIMP VideoFakeSrcPin::Disconnect ()
|
||||
{
|
||||
GST_DEBUG_OBJECT (this, "Disconnecting pin");
|
||||
HRESULT hr = CDynamicOutputPin::Disconnect();
|
||||
GST_DEBUG_OBJECT (this, "Pin disconnected");
|
||||
return hr;
|
||||
}
|
||||
|
||||
HRESULT VideoFakeSrcPin::Inactive ()
|
||||
{
|
||||
GST_DEBUG_OBJECT (this, "Pin going inactive");
|
||||
HRESULT hr = CDynamicOutputPin::Inactive();
|
||||
GST_DEBUG_OBJECT (this, "Pin inactivated");
|
||||
return hr;
|
||||
}
|
||||
|
||||
HRESULT VideoFakeSrcPin::BreakConnect ()
|
||||
{
|
||||
GST_DEBUG_OBJECT (this, "Breaking connection");
|
||||
HRESULT hr = CDynamicOutputPin::BreakConnect();
|
||||
GST_DEBUG_OBJECT (this, "Connection broken");
|
||||
return hr;
|
||||
}
|
||||
|
||||
HRESULT VideoFakeSrcPin::CompleteConnect (IPin *pReceivePin)
|
||||
{
|
||||
GST_DEBUG_OBJECT (this, "Completing connection");
|
||||
HRESULT hr = CDynamicOutputPin::CompleteConnect(pReceivePin);
|
||||
GST_DEBUG_OBJECT (this, "Completed connection: %x", hr);
|
||||
return hr;
|
||||
}
|
||||
|
||||
STDMETHODIMP VideoFakeSrcPin::Block(DWORD dwBlockFlags, HANDLE hEvent)
|
||||
{
|
||||
GST_DEBUG_OBJECT (this, "Calling Block()");
|
||||
HRESULT hr = CDynamicOutputPin::Block (dwBlockFlags, hEvent);
|
||||
GST_DEBUG_OBJECT (this, "Called Block()");
|
||||
return hr;
|
||||
}
|
||||
|
||||
/* When moving the video to a different monitor, directshow stops and restarts the playback pipeline.
|
||||
* Unfortunately, it doesn't properly block pins or do anything special, so we racily just fail
|
||||
* at this point.
|
||||
* So, we try multiple times in a loop, hoping that it'll have finished (we get no notifications at all!)
|
||||
* at some point.
|
||||
*/
|
||||
#define MAX_ATTEMPTS 10
|
||||
|
||||
GstFlowReturn VideoFakeSrcPin::PushBuffer(GstBuffer *buffer)
|
||||
{
|
||||
IMediaSample *pSample = NULL;
|
||||
byte *data = GST_BUFFER_DATA (buffer);
|
||||
int attempts = 0;
|
||||
HRESULT hres;
|
||||
BYTE *sample_buffer;
|
||||
AM_MEDIA_TYPE *mediatype;
|
||||
|
||||
StartUsingOutputPin();
|
||||
|
||||
while (attempts < MAX_ATTEMPTS)
|
||||
{
|
||||
hres = GetDeliveryBuffer(&pSample, NULL, NULL, 0);
|
||||
if (SUCCEEDED (hres))
|
||||
break;
|
||||
attempts++;
|
||||
Sleep(100);
|
||||
}
|
||||
|
||||
if (FAILED (hres))
|
||||
{
|
||||
StopUsingOutputPin();
|
||||
GST_WARNING ("Could not get sample for delivery to sink: %x", hres);
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
|
||||
pSample->GetPointer(&sample_buffer);
|
||||
pSample->GetMediaType(&mediatype);
|
||||
if (mediatype)
|
||||
SetMediaType (mediatype);
|
||||
|
||||
if(sample_buffer)
|
||||
{
|
||||
/* Copy to the destination stride.
|
||||
* This is not just a simple memcpy because of the different strides.
|
||||
* TODO: optimise for the same-stride case and avoid the copy entirely.
|
||||
*/
|
||||
CopyToDestinationBuffer (data, sample_buffer);
|
||||
}
|
||||
|
||||
pSample->SetDiscontinuity(FALSE); /* Decoded frame; unimportant */
|
||||
pSample->SetSyncPoint(TRUE); /* Decoded frame; always a valid syncpoint */
|
||||
pSample->SetPreroll(FALSE); /* For non-displayed frames.
|
||||
Not used in GStreamer */
|
||||
|
||||
/* Disable synchronising on this sample. We instead let GStreamer handle
|
||||
* this at a higher level, inside BaseSink. */
|
||||
pSample->SetTime(NULL, NULL);
|
||||
|
||||
while (attempts < MAX_ATTEMPTS)
|
||||
{
|
||||
hres = Deliver(pSample);
|
||||
if (SUCCEEDED (hres))
|
||||
break;
|
||||
attempts++;
|
||||
Sleep(100);
|
||||
}
|
||||
|
||||
pSample->Release();
|
||||
|
||||
StopUsingOutputPin();
|
||||
|
||||
if (SUCCEEDED (hres))
|
||||
return GST_FLOW_OK;
|
||||
else {
|
||||
GST_WARNING_OBJECT (this, "Failed to deliver sample: %x", hres);
|
||||
if (hres == VFW_E_NOT_CONNECTED)
|
||||
return GST_FLOW_NOT_LINKED;
|
||||
else
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
STDMETHODIMP VideoFakeSrcPin::Flush ()
|
||||
{
|
||||
DeliverBeginFlush();
|
||||
DeliverEndFlush();
|
||||
return S_OK;
|
||||
}
|
||||
|
||||
VideoFakeSrc::VideoFakeSrc() : CBaseFilter("VideoFakeSrc", NULL, &m_critsec, CLSID_VideoFakeSrc),
|
||||
m_evFilterStoppingEvent(TRUE)
|
||||
{
|
||||
HRESULT hr = S_OK;
|
||||
m_pOutputPin = new VideoFakeSrcPin ((CSource *)this, &m_critsec, &hr);
|
||||
}
|
||||
|
||||
int VideoFakeSrc::GetPinCount()
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
CBasePin *VideoFakeSrc::GetPin(int n)
|
||||
{
|
||||
return (CBasePin *)m_pOutputPin;
|
||||
}
|
||||
|
||||
VideoFakeSrcPin *VideoFakeSrc::GetOutputPin()
|
||||
{
|
||||
return m_pOutputPin;
|
||||
}
|
||||
|
||||
STDMETHODIMP VideoFakeSrc::Stop(void)
|
||||
{
|
||||
GST_DEBUG_OBJECT (this, "Stop()");
|
||||
m_evFilterStoppingEvent.Set();
|
||||
|
||||
return CBaseFilter::Stop();
|
||||
}
|
||||
|
||||
STDMETHODIMP VideoFakeSrc::Pause(void)
|
||||
{
|
||||
GST_DEBUG_OBJECT (this, "Pause()");
|
||||
|
||||
m_evFilterStoppingEvent.Reset();
|
||||
|
||||
return CBaseFilter::Pause();
|
||||
}
|
||||
|
||||
STDMETHODIMP VideoFakeSrc::Run(REFERENCE_TIME tStart)
|
||||
{
|
||||
GST_DEBUG_OBJECT (this, "Run()");
|
||||
|
||||
return CBaseFilter::Run(tStart);
|
||||
}
|
||||
|
||||
STDMETHODIMP VideoFakeSrc::JoinFilterGraph(IFilterGraph* pGraph, LPCWSTR pName)
|
||||
{
|
||||
HRESULT hr;
|
||||
|
||||
// The filter is joining the filter graph.
|
||||
if(NULL != pGraph)
|
||||
{
|
||||
IGraphConfig* pGraphConfig = NULL;
|
||||
hr = pGraph->QueryInterface(IID_IGraphConfig, (void**)&pGraphConfig);
|
||||
if(FAILED(hr))
|
||||
return hr;
|
||||
|
||||
hr = CBaseFilter::JoinFilterGraph(pGraph, pName);
|
||||
if(FAILED(hr))
|
||||
{
|
||||
pGraphConfig->Release();
|
||||
return hr;
|
||||
}
|
||||
|
||||
m_pOutputPin->SetConfigInfo(pGraphConfig, m_evFilterStoppingEvent);
|
||||
pGraphConfig->Release();
|
||||
}
|
||||
else
|
||||
{
|
||||
hr = CBaseFilter::JoinFilterGraph(pGraph, pName);
|
||||
if(FAILED(hr))
|
||||
return hr;
|
||||
|
||||
m_pOutputPin->SetConfigInfo(NULL, NULL);
|
||||
}
|
||||
|
||||
return S_OK;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -22,7 +22,7 @@
|
|||
#include <streams.h>
|
||||
#include <gst/gst.h>
|
||||
|
||||
class VideoFakeSrcPin : public CBaseOutputPin
|
||||
class VideoFakeSrcPin : public CDynamicOutputPin
|
||||
{
|
||||
protected:
|
||||
/* members */
|
||||
|
|
@ -41,11 +41,14 @@ public:
|
|||
virtual HRESULT CheckMediaType(const CMediaType *pmt);
|
||||
HRESULT GetMediaType(int iPosition, CMediaType *pMediaType);
|
||||
virtual HRESULT DecideBufferSize (IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest);
|
||||
virtual HRESULT BreakConnect();
|
||||
virtual HRESULT CompleteConnect(IPin *pReceivePin);
|
||||
virtual HRESULT Inactive();
|
||||
STDMETHOD (SetMediaType) (AM_MEDIA_TYPE *pmt);
|
||||
STDMETHOD (Flush) ();
|
||||
STDMETHODIMP Notify(IBaseFilter * pSender, Quality q);
|
||||
|
||||
|
||||
STDMETHODIMP Disconnect();
|
||||
STDMETHODIMP Block(DWORD dwBlockFlags, HANDLE hEvent);
|
||||
};
|
||||
|
||||
class VideoFakeSrc : public CBaseFilter
|
||||
|
|
@ -55,6 +58,8 @@ private:
|
|||
CCritSec m_critsec;
|
||||
VideoFakeSrcPin *m_pOutputPin;
|
||||
|
||||
CAMEvent m_evFilterStoppingEvent;
|
||||
|
||||
public:
|
||||
/* methods */
|
||||
VideoFakeSrc (void);
|
||||
|
|
@ -65,6 +70,11 @@ public:
|
|||
/* Overrides */
|
||||
int GetPinCount();
|
||||
CBasePin *GetPin(int n);
|
||||
|
||||
STDMETHODIMP Run(REFERENCE_TIME tStart);
|
||||
STDMETHODIMP Stop(void);
|
||||
STDMETHODIMP Pause(void);
|
||||
STDMETHODIMP JoinFilterGraph(IFilterGraph* pGraph, LPCWSTR pName);
|
||||
};
|
||||
|
||||
#endif /* __DSHOWVIDEOFAKESRC_H__ */
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load diff
|
|
@ -65,6 +65,8 @@ struct _GstDshowVideoSink
|
|||
/* The filter graph (DirectShow equivalent to pipeline */
|
||||
IFilterGraph *filter_graph;
|
||||
|
||||
IMediaEventEx *filter_media_event;
|
||||
|
||||
/* Renderer wrapper (EVR, VMR9, or VMR) and support code */
|
||||
RendererSupport *renderersupport;
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue