Mostly working DirectShow Video Provider
Originally committed to SVN as r664.
This commit is contained in:
Rodrigo Braz Monteiro
parent
f0938ca9f9
commit
0fc5a75ac8
2 changed files with 219 additions and 16 deletions
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@ -36,11 +36,10 @@
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///////////
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// Headers
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#include <wx/wxprec.h>
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#include "setup.h"
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#ifdef __WINDOWS__
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#if USE_DIRECTSHOW == 1
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#pragma warning(disable: 4995)
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#include <wx/wxprec.h>
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#include <wx/image.h>
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#include <windows.h>
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#include <tchar.h>
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@ -65,6 +64,7 @@ DirectShowVideoProvider::DirectShowVideoProvider(wxString _filename, wxString _s
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//////////////
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// Destructor
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DirectShowVideoProvider::~DirectShowVideoProvider() {
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CloseVideo();
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}
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@ -204,9 +204,10 @@ HRESULT DirectShowVideoProvider::OpenVideo(wxString _filename) {
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if (!sink2) return E_NOINTERFACE;
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// Set allowed types for sink
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sink->SetAllowedTypes(IVS_RGB32|IVS_YV12|IVS_YUY2);
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//sink->SetAllowedTypes(IVS_RGB32|IVS_YV12|IVS_YUY2);
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sink->SetAllowedTypes(IVS_RGB32);
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// I have no clue
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// Pass the event to sink, so it gets set when a frame is available
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ResetEvent(m_hFrameReady);
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sink2->NotifyFrame(m_hFrameReady);
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@ -233,7 +234,7 @@ HRESULT DirectShowVideoProvider::OpenVideo(wxString _filename) {
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// Connect pins
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if (FAILED(hr = pG->Connect(pO, pI))) return hr;
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// Add control stuff to graph
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// Query the control interfaces from the graph
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CComQIPtr<IMediaControl> mc(pG);
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CComQIPtr<IMediaSeeking> ms(pG);
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@ -251,7 +252,6 @@ HRESULT DirectShowVideoProvider::OpenVideo(wxString _filename) {
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if (WaitForSingleObject(m_hFrameReady, 5000) != WAIT_OBJECT_0) return E_FAIL;
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// Get frame format
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long long defd;
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unsigned type, arx, ary;
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if (FAILED(hr = sink2->GetFrameFormat(&type, &width, &height, &arx, &ary, &defd))) return hr;
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@ -260,7 +260,7 @@ HRESULT DirectShowVideoProvider::OpenVideo(wxString _filename) {
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if (FAILED(hr = ms->GetDuration(&duration))) return hr;
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// Length of each frame? (??)
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if (defd == 0) defd = 400000;
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if (defd == 0) defd = 417083;
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// No clue, either
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int avgf = 0;
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@ -275,8 +275,9 @@ HRESULT DirectShowVideoProvider::OpenVideo(wxString _filename) {
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//}
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// Set number of frames and fps
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last_fnum = -1;
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num_frames = duration / defd;
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fps = double(10000000) / double(defd);
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fps = 10000000.0 / double(defd);
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// Set frame length
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//m_avgframe = defd;
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@ -289,15 +290,203 @@ HRESULT DirectShowVideoProvider::OpenVideo(wxString _filename) {
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// Flag frame as ready?
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SetEvent(m_hFrameReady);
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// No idea
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// Register graph with Running Objects Table for remote graphedit connection
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RegROT();
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//NextFrame();
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// Set frame count
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//m_f.SetCount(m_vi.num_frames);
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return hr;
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}
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///////////////
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// Close video
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void DirectShowVideoProvider::CloseVideo() {
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CComQIPtr<IVideoSink2> pVS2(m_pR);
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if (pVS2) pVS2->NotifyFrame(NULL);
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UnregROT();
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m_pR.Release();
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m_pGC.Release();
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m_pGS.Release();
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}
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/////////////////////////
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// Read DirectShow frame
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void DirectShowVideoProvider::ReadFrame(long long timestamp, unsigned format, unsigned bpp, const unsigned char *frame, unsigned width, unsigned height, unsigned stride, unsigned arx, unsigned ary, void *arg) {
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// Set frame
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DF *df = (DF*) arg;
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df->timestamp = timestamp;
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int w_cp = width;
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int h_cp = height;
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// Create data
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unsigned char *data;
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data = new unsigned char[width*height*bpp];
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int dstride = width*bpp;
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// Read RGB32 data
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if (format == IVS_RGB32) {
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unsigned char *dst = data + h_cp*dstride;
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w_cp *= bpp;
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for (int y = 0; y < h_cp; ++y) {
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dst -= dstride;
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memcpy(dst, frame, w_cp);
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frame += stride;
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}
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}
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// Create bitmap out of data
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df->frame = wxBitmap((const char*) data, width, height, bpp*8);
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delete data;
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//else if (format == IVS_YV12 && vi->pixel_type == VideoInfo::CS_YV12) {
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// // plane Y
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// BYTE *dp = df->frame->GetWritePtr(PLANAR_Y);
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// const unsigned char *sp = frame;
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// int dstride = df->frame->GetPitch(PLANAR_Y);
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// for (int y = 0; y < h_cp; ++y) {
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// memcpy(dp, sp, w_cp);
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// sp += stride;
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// dp += dstride;
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// }
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// // UV
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// dstride >>= 1;
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// stride >>= 1;
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// w_cp >>= 1;
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// h_cp >>= 1;
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// // plane V
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// dp = df->frame->GetWritePtr(PLANAR_V);
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// sp = frame + height * stride * 2;
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// dstride = df->frame->GetPitch(PLANAR_V);
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// for (int y = 0; y < h_cp; ++y) {
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// memcpy(dp, sp, w_cp);
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// sp += stride;
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// dp += dstride;
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// }
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// // plane U
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// dp = df->frame->GetWritePtr(PLANAR_U);
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// sp = frame + height * stride * 2 + (height >> 1) * stride;
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// dstride = df->frame->GetPitch(PLANAR_U);
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// for (int y = 0; y < h_cp; ++y) {
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// memcpy(dp, sp, w_cp);
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// sp += stride;
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// dp += dstride;
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// }
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//}
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}
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/////////////////////
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// Get Next DS Frame
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bool DirectShowVideoProvider::NextFrame(DF &_df,int &_fn) {
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// Keep reading until it gets a good frame
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while (true) {
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if (WaitForSingleObject(m_hFrameReady, INFINITE) != WAIT_OBJECT_0) return false;
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// Set object to receive data
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DF df;
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// Read frame
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HRESULT hr = m_pR->ReadFrame(ReadFrame, &df);
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if (FAILED(hr)) return false;
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// End of file
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if (hr == S_FALSE) return false;
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// Valid timestamp
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if (df.timestamp >= 0) {
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// Frame number
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int frameno = (int)((double)df.timestamp / defd + 0.5);
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// Got a good one
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if (frameno >= 0 && frameno < (signed) num_frames) {
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_fn = frameno;
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_df = df;
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return true;
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}
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}
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}
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}
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/////////////
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// Get frame
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wxBitmap DirectShowVideoProvider::GetFrame(int n) {
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// Current
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if (n == last_fnum) return rdf.frame;
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// Variables
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DF df;
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int fn;
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// Not the next, seek first
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if (n != last_fnum + 1) {
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// Reset and seek
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ResetEvent(m_hFrameReady);
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REFERENCE_TIME cur = defd * (n-1) - 10001; // -1ms, account for typical timestamps rounding
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if (cur < 0) cur = 0;
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// Failed
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if (FAILED(m_pGS->SetPositions(&cur, AM_SEEKING_AbsolutePositioning, NULL, AM_SEEKING_NoPositioning))) return wxBitmap(width,height);
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// Set time
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rdf.timestamp = -1;
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}
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// Is next
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else {
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NextFrame(df,fn);
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last_fnum = n;
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rdf.frame = df.frame;
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return rdf.frame;
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}
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// Actually get data
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while (true) {
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// Get frame
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DF df;
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int fn;
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NextFrame(df,fn);
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// Preroll
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if (fn < n) continue;
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// Right frame
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if (fn == n) {
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// we want this frame, compare timestamps to account for decimation
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// we see this for the first time
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if (rdf.timestamp < 0) rdf.timestamp = df.timestamp;
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// early, ignore
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if (df.timestamp < rdf.timestamp) continue;
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// this is the frame we want
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rdf.frame = df.frame;
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break;
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}
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else {
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return wxBitmap(width,height);
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}
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}
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// Return frame
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last_fnum = n;
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return rdf.frame;
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}
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////////////////
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// Refresh subs
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void DirectShowVideoProvider::RefreshSubtitles() {
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@ -323,4 +512,3 @@ void DirectShowVideoProvider::GetFloatFrame(float* Buffer, int n) {
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#endif
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#endif
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@ -39,12 +39,11 @@
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///////////
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// Headers
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#include <wx/wxprec.h>
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#ifdef __WINDOWS__
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#include "setup.h"
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#if USE_DIRECTSHOW == 1
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#include "video_provider.h"
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#pragma warning(disable: 4995)
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#include <wx/wxprec.h>
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#include <dshow.h>
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#include <atlbase.h>
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#include <atlcom.h>
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@ -56,6 +55,17 @@
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///////////////////////////////////
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// DirectShow Video Provider class
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class DirectShowVideoProvider: public VideoProvider {
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struct DF {
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public:
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REFERENCE_TIME timestamp; // DS timestamp that we used for this frame
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wxBitmap frame;
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DF() : timestamp(-1) { }
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DF(wxBitmap f) : timestamp(-1), frame(f) { }
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DF(const DF& f) { operator=(f); }
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DF& operator=(const DF& f) { timestamp = f.timestamp; frame = f.frame; return *this; }
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};
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private:
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wxString subfilename;
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@ -64,6 +74,7 @@ private:
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unsigned int height;
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unsigned int num_frames;
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double fps;
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long long defd;
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int depth;
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double dar;
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@ -72,13 +83,18 @@ private:
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unsigned char* data;
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wxBitmap last_frame;
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wxBitmap GetFrame(int n, bool force);
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void AttachOverlay(SubtitleProvider::Overlay *_overlay) {}
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void AttachOverlay(SubtitleProvider::Overlay *overlay) {}
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HRESULT OpenVideo(wxString _filename);
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void CloseVideo();
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static void ReadFrame(long long timestamp, unsigned format, unsigned bpp, const unsigned char *frame, unsigned width, unsigned height, unsigned stride, unsigned arx, unsigned ary, void *arg);
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bool NextFrame(DF &df,int &fn);
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void RegROT();
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void UnregROT();
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DF rdf;
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CComPtr<IVideoSink> m_pR;
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CComPtr<IMediaControl> m_pGC;
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CComPtr<IMediaSeeking> m_pGS;
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@ -94,7 +110,7 @@ public:
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void SetDAR(double _dar);
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void SetZoom(double _zoom);
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wxBitmap GetFrame(int n) { return wxBitmap(64,64); };
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wxBitmap GetFrame(int n);
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void GetFloatFrame(float* Buffer, int n);
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int GetPosition() { return last_fnum; };
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@ -110,4 +126,3 @@ public:
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};
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#endif
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#endif
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