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Configure the capture latency using the IAMBufferNegotiation interface and try to respect the configured latency-time and buffer-time
516 lines
15 KiB
C++
516 lines
15 KiB
C++
/* GStreamer
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* Copyright (C) 2007 Sebastien Moutte <sebastien@moutte.net>
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*
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* gstdshow.cpp:
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "gstdshow.h"
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#include "gstdshowfakesink.h"
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const GUID MEDIASUBTYPE_I420
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= { 0x30323449, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B,
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0x71}
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};
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void
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gst_dshow_free_mediatype (AM_MEDIA_TYPE * pmt)
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{
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if (pmt != NULL) {
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if (pmt->cbFormat != 0) {
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CoTaskMemFree ((PVOID) pmt->pbFormat);
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pmt->cbFormat = 0;
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pmt->pbFormat = NULL;
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}
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if (pmt->pUnk != NULL) {
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/* Unecessary because pUnk should not be used, but safest. */
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pmt->pUnk->Release ();
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pmt->pUnk = NULL;
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}
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CoTaskMemFree (pmt);
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}
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}
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void
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gst_dshow_free_pin_mediatype (gpointer pt)
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{
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GstCapturePinMediaType *pin_mediatype = (GstCapturePinMediaType *) pt;
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if (pin_mediatype) {
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if (pin_mediatype->capture_pin) {
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pin_mediatype->capture_pin->Release ();
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pin_mediatype->capture_pin = NULL;
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}
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if (pin_mediatype->mediatype) {
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gst_dshow_free_mediatype (pin_mediatype->mediatype);
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pin_mediatype->mediatype = NULL;
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}
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}
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}
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GstCapturePinMediaType *
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gst_dshow_new_pin_mediatype (IPin * pin)
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{
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GstCapturePinMediaType *pin_mediatype = g_new0 (GstCapturePinMediaType, 1);
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pin->AddRef ();
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pin_mediatype->capture_pin = pin;
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return pin_mediatype;
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}
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GstCapturePinMediaType *
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gst_dshow_new_pin_mediatype_from_enum_mediatypes (IPin * pin, IEnumMediaTypes *enum_mediatypes)
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{
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GstCapturePinMediaType *pin_mediatype = gst_dshow_new_pin_mediatype (pin);
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VIDEOINFOHEADER *video_info = NULL;
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HRESULT hres = enum_mediatypes->Next (1, &pin_mediatype->mediatype, NULL);
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if (hres != S_OK || !pin_mediatype->mediatype) {
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gst_dshow_free_pin_mediatype (pin_mediatype);
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return NULL;
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}
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video_info = (VIDEOINFOHEADER *) pin_mediatype->mediatype->pbFormat;
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pin_mediatype->defaultWidth = video_info->bmiHeader.biWidth;
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pin_mediatype->defaultHeight = video_info->bmiHeader.biHeight;
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pin_mediatype->defaultFPS = (gint) (10000000 / video_info->AvgTimePerFrame);
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pin_mediatype->granularityWidth = 1;
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pin_mediatype->granularityHeight = 1;
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return pin_mediatype;
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}
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GstCapturePinMediaType *
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gst_dshow_new_pin_mediatype_from_streamcaps (IPin * pin, gint id, IAMStreamConfig * streamcaps)
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{
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GstCapturePinMediaType *pin_mediatype = gst_dshow_new_pin_mediatype (pin);
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VIDEOINFOHEADER *video_info = NULL;
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HRESULT hres = streamcaps->GetStreamCaps (id, &pin_mediatype->mediatype,
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(BYTE *) & pin_mediatype->vscc);
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if (FAILED (hres) || !pin_mediatype->mediatype) {
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gst_dshow_free_pin_mediatype (pin_mediatype);
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return NULL;
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}
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video_info = (VIDEOINFOHEADER *) pin_mediatype->mediatype->pbFormat;
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pin_mediatype->defaultWidth = video_info->bmiHeader.biWidth;
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pin_mediatype->defaultHeight = video_info->bmiHeader.biHeight;
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pin_mediatype->defaultFPS = (gint) (10000000 / video_info->AvgTimePerFrame);
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pin_mediatype->granularityWidth = pin_mediatype->vscc.OutputGranularityX;
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pin_mediatype->granularityHeight = pin_mediatype->vscc.OutputGranularityY;
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return pin_mediatype;
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}
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void
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gst_dshow_free_pins_mediatypes (GList * pins_mediatypes)
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{
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while (pins_mediatypes != NULL) {
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gst_dshow_free_pin_mediatype (pins_mediatypes->data);
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pins_mediatypes = g_list_remove_link (pins_mediatypes, pins_mediatypes);
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}
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}
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gboolean
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gst_dshow_check_mediatype (AM_MEDIA_TYPE * media_type, const GUID sub_type,
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const GUID format_type)
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{
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RPC_STATUS rpcstatus;
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g_return_val_if_fail (media_type != NULL, FALSE);
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return
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UuidCompare (&media_type->subtype, (UUID *) & sub_type,
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&rpcstatus) == 0 && rpcstatus == RPC_S_OK &&
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//IsEqualGUID (&media_type->subtype, &sub_type)
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UuidCompare (&media_type->formattype, (UUID *) & format_type,
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&rpcstatus) == 0 && rpcstatus == RPC_S_OK;
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}
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gboolean
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gst_dshow_get_pin_from_filter (IBaseFilter * filter, PIN_DIRECTION pindir,
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IPin ** pin)
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{
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gboolean ret = FALSE;
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IEnumPins *enumpins = NULL;
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IPin *pintmp = NULL;
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HRESULT hres;
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*pin = NULL;
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hres = filter->EnumPins (&enumpins);
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if (FAILED (hres)) {
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return ret;
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}
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while (enumpins->Next (1, &pintmp, NULL) == S_OK) {
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PIN_DIRECTION pindirtmp;
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hres = pintmp->QueryDirection (&pindirtmp);
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if (hres == S_OK && pindir == pindirtmp) {
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*pin = pintmp;
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ret = TRUE;
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break;
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}
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pintmp->Release ();
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}
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enumpins->Release ();
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return ret;
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}
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gboolean
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gst_dshow_find_filter (CLSID input_majortype, CLSID input_subtype,
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CLSID output_majortype, CLSID output_subtype,
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gchar * prefered_filter_name, IBaseFilter ** filter)
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{
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gboolean ret = FALSE;
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HRESULT hres;
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GUID arrayInTypes[2];
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GUID arrayOutTypes[2];
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IFilterMapper2 *mapper = NULL;
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IEnumMoniker *enum_moniker = NULL;
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IMoniker *moniker = NULL;
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ULONG fetched;
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gchar *prefered_filter_upper = NULL;
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gboolean exit = FALSE;
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/* initialize output parameter */
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if (filter)
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*filter = NULL;
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/* create a private copy of prefered filter substring in upper case */
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if (prefered_filter_name) {
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prefered_filter_upper = g_strdup (prefered_filter_name);
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_strupr (prefered_filter_upper);
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}
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hres = CoCreateInstance (CLSID_FilterMapper2, NULL, CLSCTX_INPROC,
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IID_IFilterMapper2, (void **) &mapper);
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if (FAILED (hres))
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goto clean;
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memcpy (&arrayInTypes[0], &input_majortype, sizeof (CLSID));
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memcpy (&arrayInTypes[1], &input_subtype, sizeof (CLSID));
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memcpy (&arrayOutTypes[0], &output_majortype, sizeof (CLSID));
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memcpy (&arrayOutTypes[1], &output_subtype, sizeof (CLSID));
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hres =
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mapper->EnumMatchingFilters (&enum_moniker, 0, FALSE,
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MERIT_DO_NOT_USE + 1, TRUE, 1, arrayInTypes, NULL, NULL, FALSE, TRUE, 1,
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arrayOutTypes, NULL, NULL);
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if (FAILED (hres))
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goto clean;
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enum_moniker->Reset ();
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while (hres = enum_moniker->Next (1, &moniker, &fetched), hres == S_OK
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&& !exit) {
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IBaseFilter *filter_temp = NULL;
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IPropertyBag *property_bag = NULL;
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gchar *friendly_name = NULL;
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hres =
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moniker->BindToStorage (NULL, NULL, IID_IPropertyBag,
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(void **) &property_bag);
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if (SUCCEEDED (hres) && property_bag) {
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VARIANT varFriendlyName;
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VariantInit (&varFriendlyName);
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hres = property_bag->Read (L"FriendlyName", &varFriendlyName, NULL);
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if (hres == S_OK && varFriendlyName.bstrVal) {
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friendly_name =
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g_utf16_to_utf8 ((const gunichar2 *) varFriendlyName.bstrVal,
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wcslen (varFriendlyName.bstrVal), NULL, NULL, NULL);
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if (friendly_name)
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_strupr (friendly_name);
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SysFreeString (varFriendlyName.bstrVal);
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}
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property_bag->Release ();
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}
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hres =
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moniker->BindToObject (NULL, NULL, IID_IBaseFilter,
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(void **) &filter_temp);
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if (SUCCEEDED (hres) && filter_temp) {
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ret = TRUE;
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if (filter) {
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if (*filter)
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(*filter)->Release ();
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*filter = filter_temp;
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(*filter)->AddRef ();
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if (prefered_filter_upper && friendly_name &&
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strstr (friendly_name, prefered_filter_upper))
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exit = TRUE;
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}
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/* if we just want to know if the formats are supported OR
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if we don't care about what will be the filter used
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=> we can stop enumeration */
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if (!filter || !prefered_filter_upper)
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exit = TRUE;
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filter_temp->Release ();
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}
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if (friendly_name)
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g_free (friendly_name);
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moniker->Release ();
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}
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clean:
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if (prefered_filter_upper)
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g_free (prefered_filter_upper);
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if (enum_moniker)
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enum_moniker->Release ();
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if (mapper)
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mapper->Release ();
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return ret;
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}
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gchar *
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gst_dshow_getdevice_from_devicename (const GUID * device_category,
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gchar ** device_name)
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{
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gchar *ret = NULL;
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ICreateDevEnum *devices_enum = NULL;
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IEnumMoniker *enum_moniker = NULL;
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IMoniker *moniker = NULL;
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HRESULT hres = S_FALSE;
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ULONG fetched;
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gboolean bfound = FALSE;
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hres = CoCreateInstance (CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
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IID_ICreateDevEnum, (void **) &devices_enum);
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if (hres != S_OK) {
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/*error */
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goto clean;
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}
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hres = devices_enum->CreateClassEnumerator (*device_category,
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&enum_moniker, 0);
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if (hres != S_OK || !enum_moniker) {
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/*error */
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goto clean;
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}
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enum_moniker->Reset ();
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while (hres = enum_moniker->Next (1, &moniker, &fetched), hres == S_OK
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&& !bfound) {
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IPropertyBag *property_bag = NULL;
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hres =
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moniker->BindToStorage (NULL, NULL, IID_IPropertyBag,
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(void **) &property_bag);
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if (SUCCEEDED (hres) && property_bag) {
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VARIANT varFriendlyName;
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VariantInit (&varFriendlyName);
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hres = property_bag->Read (L"FriendlyName", &varFriendlyName, NULL);
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if (hres == S_OK && varFriendlyName.bstrVal) {
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gchar *friendly_name =
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g_utf16_to_utf8 ((const gunichar2 *) varFriendlyName.bstrVal,
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wcslen (varFriendlyName.bstrVal), NULL, NULL, NULL);
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if (!*device_name) {
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*device_name = g_strdup (friendly_name);
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}
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if (_stricmp (*device_name, friendly_name) == 0) {
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WCHAR *wszDisplayName = NULL;
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hres = moniker->GetDisplayName (NULL, NULL, &wszDisplayName);
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if (hres == S_OK && wszDisplayName) {
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ret = g_utf16_to_utf8 ((const gunichar2 *) wszDisplayName,
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wcslen (wszDisplayName), NULL, NULL, NULL);
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CoTaskMemFree (wszDisplayName);
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}
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bfound = TRUE;
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}
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SysFreeString (varFriendlyName.bstrVal);
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}
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property_bag->Release ();
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}
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moniker->Release ();
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}
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clean:
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if (enum_moniker) {
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enum_moniker->Release ();
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}
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if (devices_enum) {
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devices_enum->Release ();
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}
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return ret;
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}
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gboolean
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gst_dshow_show_propertypage (IBaseFilter * base_filter)
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{
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gboolean ret = FALSE;
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ISpecifyPropertyPages *pProp = NULL;
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HRESULT hres =
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base_filter->QueryInterface (IID_ISpecifyPropertyPages, (void **) &pProp);
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if (SUCCEEDED (hres)) {
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/* Get the filter's name and IUnknown pointer. */
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FILTER_INFO FilterInfo;
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CAUUID caGUID;
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IUnknown *pFilterUnk = NULL;
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hres = base_filter->QueryFilterInfo (&FilterInfo);
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base_filter->QueryInterface (IID_IUnknown, (void **) &pFilterUnk);
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/* Show the page. */
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pProp->GetPages (&caGUID);
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pProp->Release ();
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OleCreatePropertyFrame (GetDesktopWindow (), 0, 0, FilterInfo.achName,
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1, &pFilterUnk, caGUID.cElems, caGUID.pElems, 0, 0, NULL);
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pFilterUnk->Release ();
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FilterInfo.pGraph->Release ();
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CoTaskMemFree (caGUID.pElems);
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}
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return ret;
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}
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GstVideoFormat
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gst_dshow_guid_to_gst_video_format (AM_MEDIA_TYPE *mediatype)
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{
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if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_I420, FORMAT_VideoInfo))
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return GST_VIDEO_FORMAT_I420;
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if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_RGB24, FORMAT_VideoInfo))
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return GST_VIDEO_FORMAT_BGR;
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if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_YUY2, FORMAT_VideoInfo))
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return GST_VIDEO_FORMAT_YUY2;
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if (gst_dshow_check_mediatype (mediatype, MEDIASUBTYPE_UYVY, FORMAT_VideoInfo))
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return GST_VIDEO_FORMAT_UYVY;
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return GST_VIDEO_FORMAT_UNKNOWN;
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}
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GstCaps *
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gst_dshow_new_video_caps (GstVideoFormat video_format, const gchar * name,
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GstCapturePinMediaType * pin_mediatype)
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{
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GstCaps *video_caps = NULL;
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GstStructure *video_structure = NULL;
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gint min_w, max_w;
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gint min_h, max_h;
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gint min_fr, max_fr;
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/* raw video format */
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switch (video_format) {
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case GST_VIDEO_FORMAT_BGR:
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video_caps = gst_caps_from_string (GST_VIDEO_CAPS_BGR);
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break;
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case GST_VIDEO_FORMAT_I420:
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video_caps = gst_caps_from_string (GST_VIDEO_CAPS_YUV ("I420"));
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break;
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case GST_VIDEO_FORMAT_YUY2:
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video_caps = gst_caps_from_string (GST_VIDEO_CAPS_YUV ("YUY2"));
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break;
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case GST_VIDEO_FORMAT_UYVY:
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video_caps = gst_caps_from_string (GST_VIDEO_CAPS_YUV ("UYVY"));
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break;
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default:
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break;
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}
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/* other video format */
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if (!video_caps) {
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if (g_ascii_strncasecmp (name, "video/x-dv, systemstream=FALSE", 31) == 0) {
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video_caps = gst_caps_new_simple ("video/x-dv",
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"systemstream", G_TYPE_BOOLEAN, FALSE,
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"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('d', 'v', 's', 'd'),
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NULL);
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} else if (g_ascii_strncasecmp (name, "video/x-dv, systemstream=TRUE", 31) == 0) {
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video_caps = gst_caps_new_simple ("video/x-dv",
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"systemstream", G_TYPE_BOOLEAN, TRUE, NULL);
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return video_caps;
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}
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}
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if (!video_caps)
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return NULL;
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video_structure = gst_caps_get_structure (video_caps, 0);
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/* Hope GST_TYPE_INT_RANGE_STEP will exits in future gstreamer releases */
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/* because we could use : */
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/* "width", GST_TYPE_INT_RANGE_STEP, video_default->minWidth, video_default->maxWidth, video_default->granularityWidth */
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/* instead of : */
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/* "width", GST_TYPE_INT_RANGE, video_default->minWidth, video_default->maxWidth */
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/* For framerate we do not need a step (granularity) because */
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/* "The IAMStreamConfig::SetFormat method will set the frame rate to the closest */
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/* value that the filter supports" as it said in the VIDEO_STREAM_CONFIG_CAPS dshwo doc */
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min_w = pin_mediatype->vscc.MinOutputSize.cx;
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max_w = pin_mediatype->vscc.MaxOutputSize.cx;
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min_h = pin_mediatype->vscc.MinOutputSize.cy;
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max_h = pin_mediatype->vscc.MaxOutputSize.cy;
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min_fr = (gint) (10000000 / pin_mediatype->vscc.MaxFrameInterval);
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max_fr = (gint)(10000000 / pin_mediatype->vscc.MinFrameInterval);
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if (min_w == max_w)
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gst_structure_set (video_structure, "width", G_TYPE_INT, min_w, NULL);
|
|
else
|
|
gst_structure_set (video_structure,
|
|
"width", GST_TYPE_INT_RANGE, min_w, max_w, NULL);
|
|
|
|
if (min_h == max_h)
|
|
gst_structure_set (video_structure, "height", G_TYPE_INT, min_h, NULL);
|
|
else
|
|
gst_structure_set (video_structure,
|
|
"height", GST_TYPE_INT_RANGE, min_h, max_h, NULL);
|
|
|
|
if (min_fr == max_fr)
|
|
gst_structure_set (video_structure, "framerate",
|
|
GST_TYPE_FRACTION, min_fr, 1, NULL);
|
|
else
|
|
gst_structure_set (video_structure, "framerate",
|
|
GST_TYPE_FRACTION_RANGE, min_fr, 1, max_fr, 1, NULL);
|
|
|
|
return video_caps;
|
|
}
|
|
|
|
bool gst_dshow_configure_latency (IPin *pCapturePin, guint bufSizeMS)
|
|
{
|
|
HRESULT hr;
|
|
ALLOCATOR_PROPERTIES alloc_prop;
|
|
IAMBufferNegotiation * pNeg = NULL;
|
|
hr = pCapturePin->QueryInterface(IID_IAMBufferNegotiation, (void **)&pNeg);
|
|
|
|
if(!SUCCEEDED (hr))
|
|
return FALSE;
|
|
|
|
alloc_prop.cbAlign = -1; // -1 means no preference.
|
|
alloc_prop.cbBuffer = bufSizeMS;
|
|
alloc_prop.cbPrefix = -1;
|
|
alloc_prop.cBuffers = -1;
|
|
hr = pNeg->SuggestAllocatorProperties (&alloc_prop);
|
|
return SUCCEEDED (hr);
|
|
}
|