winegstreamer: Add structure for gstreamer transform filters.
This commit is contained in:
Aric Stewart
Alexandre Julliard
parent
35643b73e3
commit
aeb19307c7
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@ -6,6 +6,7 @@ EXTRALIBS = @GSTREAMER_LIBS@ @LIBPTHREAD@
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C_SRCS = \
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glibthread.c \
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gstdemux.c \
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gsttffilter.c \
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main.c
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RC_SRCS = \
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@ -0,0 +1,475 @@
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/*
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* GStreamer wrapper filter
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*
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* Copyright 2010 Maarten Lankhorst for CodeWeavers
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* Copyright 2010 Aric Stewart for CodeWeavers
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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 Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*
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*/
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#include "config.h"
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#include <gst/app/gstappsink.h>
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#include <gst/app/gstappsrc.h>
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#include <gst/app/gstappbuffer.h>
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#include "gst_private.h"
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#include "gst_guids.h"
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#include "uuids.h"
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#include "mmreg.h"
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#include "windef.h"
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#include "winbase.h"
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#include "dshow.h"
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#include "strmif.h"
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#include "vfwmsgs.h"
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#include "dvdmedia.h"
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#include "ks.h"
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#include "ksmedia.h"
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#include "msacm.h"
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#include <assert.h>
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#include "wine/unicode.h"
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#include "wine/debug.h"
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#include "initguid.h"
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WINE_DEFAULT_DEBUG_CHANNEL(gstreamer);
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struct typeinfo {
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GstCaps *caps;
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const char *type;
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};
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static const IBaseFilterVtbl GSTTf_Vtbl;
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static gboolean match_element(GstPluginFeature *feature, gpointer gdata) {
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struct typeinfo *data = (struct typeinfo*)gdata;
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GstElementFactory *factory;
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const GList *list;
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if (!GST_IS_ELEMENT_FACTORY(feature))
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return FALSE;
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factory = GST_ELEMENT_FACTORY(feature);
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if (!strstr(gst_element_factory_get_klass(factory), data->type))
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return FALSE;
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for (list = gst_element_factory_get_static_pad_templates(factory); list; list = list->next) {
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GstStaticPadTemplate *pad = (GstStaticPadTemplate*)list->data;
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GstCaps *caps;
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gboolean ret;
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if (pad->direction != GST_PAD_SINK)
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continue;
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caps = gst_static_caps_get(&pad->static_caps);
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ret = gst_caps_is_always_compatible(caps, data->caps);
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gst_caps_unref(caps);
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if (ret)
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return TRUE;
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}
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return FALSE;
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}
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static const char *Gstreamer_FindMatch(const char *strcaps)
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{
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struct typeinfo data;
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GList *list, *copy;
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guint bestrank = 0;
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GstElementFactory *bestfactory = NULL;
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GstCaps *caps = gst_caps_from_string(strcaps);
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data.caps = caps;
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data.type = "Decoder";
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copy = gst_default_registry_feature_filter(match_element, 0, &data);
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for (list = copy; list; list = list->next) {
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GstElementFactory *factory = (GstElementFactory*)list->data;
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guint rank;
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rank = gst_plugin_feature_get_rank(GST_PLUGIN_FEATURE(factory));
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if (rank > bestrank || !bestrank) {
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bestrank = rank;
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bestfactory = factory;
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}
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}
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gst_caps_unref(caps);
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g_list_free(copy);
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if (!bestfactory) {
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FIXME("Could not find plugin for %s\n", strcaps);
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return NULL;
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}
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return gst_plugin_feature_get_name(GST_PLUGIN_FEATURE(bestfactory));
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}
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typedef struct GstTfImpl {
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TransformFilter tf;
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IUnknown *seekthru_unk;
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const char *gstreamer_name;
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GstElement *filter;
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GstPad *my_src, *my_sink, *their_src, *their_sink;
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LONG cbBuffer;
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} GstTfImpl;
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static HRESULT WINAPI Gstreamer_transform_ProcessBegin(TransformFilter *iface) {
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GstTfImpl *This = (GstTfImpl*)iface;
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int ret;
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ret = gst_element_set_state(This->filter, GST_STATE_PLAYING);
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TRACE("Returned: %i\n", ret);
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return S_OK;
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}
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static HRESULT WINAPI Gstreamer_transform_DecideBufferSize(TransformFilter *tf, IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest)
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{
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GstTfImpl *This = (GstTfImpl*)tf;
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ALLOCATOR_PROPERTIES actual;
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if (!ppropInputRequest->cbAlign)
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ppropInputRequest->cbAlign = 1;
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ppropInputRequest->cbBuffer = This->cbBuffer;
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if (!ppropInputRequest->cBuffers)
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ppropInputRequest->cBuffers = 1;
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return IMemAllocator_SetProperties(pAlloc, ppropInputRequest, &actual);
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}
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static void release_sample(void *data) {
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TRACE("Releasing %p\n", data);
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IMediaSample_Release((IMediaSample *)data);
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}
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static GstFlowReturn got_data(GstPad *pad, GstBuffer *buf) {
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GstTfImpl *This = gst_pad_get_element_private(pad);
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IMediaSample *sample = GST_APP_BUFFER(buf)->priv;
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REFERENCE_TIME tStart, tStop;
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HRESULT hr;
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if (GST_BUFFER_TIMESTAMP_IS_VALID(buf) &&
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GST_BUFFER_DURATION_IS_VALID(buf)) {
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tStart = buf->timestamp / 100;
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tStop = tStart + buf->duration / 100;
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IMediaSample_SetTime(sample, &tStart, &tStop);
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}
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else
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IMediaSample_SetTime(sample, NULL, NULL);
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IMediaSample_SetDiscontinuity(sample, GST_BUFFER_FLAG_IS_SET(buf, GST_BUFFER_FLAG_DISCONT));
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IMediaSample_SetPreroll(sample, GST_BUFFER_FLAG_IS_SET(buf, GST_BUFFER_FLAG_PREROLL));
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IMediaSample_SetSyncPoint(sample, !GST_BUFFER_FLAG_IS_SET(buf, GST_BUFFER_FLAG_DELTA_UNIT));
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hr = BaseOutputPinImpl_Deliver((BaseOutputPin*)This->tf.ppPins[1], sample);
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gst_buffer_unref(buf);
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if (FAILED(hr))
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return GST_FLOW_WRONG_STATE;
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if (hr != S_OK)
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return GST_FLOW_RESEND;
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return GST_FLOW_OK;
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}
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static GstFlowReturn request_buffer(GstPad *pad, guint64 ofs, guint size, GstCaps *caps, GstBuffer **buf) {
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GstTfImpl *This = gst_pad_get_element_private(pad);
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IMediaSample *sample;
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BYTE *ptr;
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HRESULT hr;
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TRACE("Requesting buffer\n");
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hr = BaseOutputPinImpl_GetDeliveryBuffer((BaseOutputPin*)This->tf.ppPins[1], &sample, NULL, NULL, 0);
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if (FAILED(hr)) {
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ERR("Could not get output buffer: %08x\n", hr);
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return GST_FLOW_WRONG_STATE;
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}
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IMediaSample_SetActualDataLength(sample, size);
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IMediaSample_GetPointer(sample, &ptr);
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*buf = gst_app_buffer_new(ptr, size, release_sample, sample);
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if (!*buf) {
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IMediaSample_Release(sample);
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ERR("Out of memory\n");
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return GST_FLOW_ERROR;
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}
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if (!caps)
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caps = gst_pad_get_caps_reffed(This->my_sink);
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gst_buffer_set_caps(*buf, caps);
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return GST_FLOW_OK;
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}
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static HRESULT WINAPI Gstreamer_transform_ProcessData(TransformFilter *iface, IMediaSample *sample) {
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GstTfImpl *This = (GstTfImpl*)iface;
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REFERENCE_TIME tStart, tStop;
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BYTE *data;
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GstBuffer *buf;
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HRESULT hr;
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int ret;
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TRACE("Reading %p\n", sample);
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EnterCriticalSection(&This->tf.filter.csFilter);
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IMediaSample_GetPointer(sample, &data);
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buf = gst_app_buffer_new(data, IMediaSample_GetActualDataLength(sample), release_sample, sample);
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if (!buf) {
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LeaveCriticalSection(&This->tf.filter.csFilter);
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return S_OK;
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}
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gst_buffer_set_caps(buf, gst_pad_get_caps_reffed(This->my_src));
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IMediaSample_AddRef(sample);
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buf->duration = buf->timestamp = -1;
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hr = IMediaSample_GetTime(sample, &tStart, &tStop);
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if (SUCCEEDED(hr)) {
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buf->timestamp = tStart * 100;
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if (hr == S_OK)
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buf->duration = (tStop - tStart)*100;
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}
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if (IMediaSample_IsDiscontinuity(sample) == S_OK)
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GST_BUFFER_FLAG_SET(buf, GST_BUFFER_FLAG_DISCONT);
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if (IMediaSample_IsPreroll(sample) == S_OK)
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GST_BUFFER_FLAG_SET(buf, GST_BUFFER_FLAG_PREROLL);
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if (IMediaSample_IsSyncPoint(sample) != S_OK)
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GST_BUFFER_FLAG_SET(buf, GST_BUFFER_FLAG_DELTA_UNIT);
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LeaveCriticalSection(&This->tf.filter.csFilter);
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ret = gst_pad_push(This->my_src, buf);
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if (ret)
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WARN("Sending returned: %i\n", ret);
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if (ret == GST_FLOW_ERROR)
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return E_FAIL;
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if (ret == GST_FLOW_WRONG_STATE)
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return VFW_E_WRONG_STATE;
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if (ret == GST_FLOW_RESEND)
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return S_FALSE;
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return S_OK;
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}
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static HRESULT WINAPI Gstreamer_transform_ProcessEnd(TransformFilter *iface) {
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GstTfImpl *This = (GstTfImpl*)iface;
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int ret;
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ret = gst_element_set_state(This->filter, GST_STATE_PAUSED);
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TRACE("Returned: %i\n", ret);
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return S_OK;
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}
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static void Gstreamer_transform_pad_added(GstElement *filter, GstPad *pad, GstTfImpl *This)
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{
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int ret;
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if (!GST_PAD_IS_SRC(pad))
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return;
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ret = gst_pad_link(pad, This->my_sink);
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if (ret < 0)
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WARN("Failed to link with %i\n", ret);
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This->their_src = pad;
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gst_pad_set_active(pad, TRUE);
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gst_pad_set_active(This->my_sink, TRUE);
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}
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static HRESULT Gstreamer_transform_ConnectInput(GstTfImpl *This, const AM_MEDIA_TYPE *amt, GstCaps *capsin, GstCaps *capsout) {
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GstIterator *it;
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int done = 0, found = 0, ret;
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This->filter = gst_element_factory_make(This->gstreamer_name, NULL);
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if (!This->filter) {
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FIXME("Could not make %s filter\n", This->gstreamer_name);
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return E_FAIL;
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}
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This->my_src = gst_pad_new(NULL, GST_PAD_SRC);
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gst_pad_set_element_private (This->my_src, This);
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This->my_sink = gst_pad_new(NULL, GST_PAD_SINK);
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gst_pad_set_chain_function(This->my_sink, got_data);
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gst_pad_set_bufferalloc_function(This->my_sink, request_buffer);
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gst_pad_set_element_private (This->my_sink, This);
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ret = gst_pad_set_caps(This->my_src, capsin);
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if (ret < 0) {
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WARN("Failed to set caps on own source with %i\n", ret);
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return E_FAIL;
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}
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ret = gst_pad_set_caps(This->my_sink, capsout);
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if (ret < 0) {
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WARN("Failed to set caps on own sink with %i\n", ret);
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return E_FAIL;
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}
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it = gst_element_iterate_sink_pads(This->filter);
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while (!done) {
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gpointer item;
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switch (gst_iterator_next(it, &item)) {
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case GST_ITERATOR_RESYNC:
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gst_iterator_resync (it);
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break;
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case GST_ITERATOR_OK:
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This->their_sink = item;
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case GST_ITERATOR_ERROR:
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case GST_ITERATOR_DONE:
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done = 1;
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break;
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}
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}
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gst_iterator_free(it);
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if (!This->their_sink) {
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ERR("Could not find sink on filter %s\n", This->gstreamer_name);
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return E_FAIL;
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}
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it = gst_element_iterate_src_pads(This->filter);
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gst_iterator_resync(it);
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done = 0;
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while (!done) {
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gpointer item;
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switch (gst_iterator_next(it, &item)) {
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case GST_ITERATOR_RESYNC:
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gst_iterator_resync (it);
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break;
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case GST_ITERATOR_OK:
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This->their_src = item;
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case GST_ITERATOR_ERROR:
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case GST_ITERATOR_DONE:
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done = 1;
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break;
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}
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}
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gst_iterator_free(it);
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found = !!This->their_src;
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if (!found)
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g_signal_connect(This->filter, "pad-added", G_CALLBACK(Gstreamer_transform_pad_added), This);
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ret = gst_pad_link(This->my_src, This->their_sink);
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if (ret < 0) {
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WARN("Failed to link with %i\n", ret);
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return E_FAIL;
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}
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if (found)
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Gstreamer_transform_pad_added(This->filter, This->their_src, This);
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if (!gst_pad_is_linked(This->my_sink))
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return E_FAIL;
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TRACE("Connected\n");
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return S_OK;
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}
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static HRESULT WINAPI Gstreamer_transform_Cleanup(TransformFilter *tf, PIN_DIRECTION dir) {
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GstTfImpl *This = (GstTfImpl*)tf;
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if (dir == PINDIR_INPUT)
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{
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if (This->filter) {
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gst_element_set_state(This->filter, GST_STATE_NULL);
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gst_object_unref(This->filter);
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}
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This->filter = NULL;
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if (This->my_src) {
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gst_pad_unlink(This->my_src, This->their_sink);
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gst_object_unref(This->my_src);
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}
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if (This->my_sink) {
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gst_pad_unlink(This->their_src, This->my_sink);
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gst_object_unref(This->my_sink);
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}
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This->my_sink = This->my_src = This->their_sink = This->their_src = NULL;
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FIXME("%p stub\n", This);
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}
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return S_OK;
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}
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static HRESULT WINAPI Gstreamer_transform_EndOfStream(TransformFilter *iface) {
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GstTfImpl *This = (GstTfImpl*)iface;
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TRACE("%p\n", This);
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gst_pad_push_event(This->my_src, gst_event_new_eos());
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return S_OK;
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}
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static HRESULT WINAPI Gstreamer_transform_BeginFlush(TransformFilter *iface) {
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GstTfImpl *This = (GstTfImpl*)iface;
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TRACE("%p\n", This);
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gst_pad_push_event(This->my_src, gst_event_new_flush_start());
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return S_OK;
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}
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static HRESULT WINAPI Gstreamer_transform_EndFlush(TransformFilter *iface) {
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GstTfImpl *This = (GstTfImpl*)iface;
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TRACE("%p\n", This);
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gst_pad_push_event(This->my_src, gst_event_new_flush_stop());
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return S_OK;
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}
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static HRESULT WINAPI Gstreamer_transform_NewSegment(TransformFilter *iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate) {
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GstTfImpl *This = (GstTfImpl*)iface;
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TRACE("%p\n", This);
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gst_pad_push_event(This->my_src, gst_event_new_new_segment_full(1,
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1.0, dRate, GST_FORMAT_TIME, tStart*100, tStop <= tStart ? -1 : tStop * 100, tStart*100));
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return S_OK;
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}
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static HRESULT Gstreamer_transform_create(IUnknown *punkout, const CLSID *clsid, const char *name, const TransformFilterFuncTable *vtbl, void **obj)
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{
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GstTfImpl *This;
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if (FAILED(TransformFilter_Construct(&GSTTf_Vtbl, sizeof(GstTfImpl), clsid, vtbl, (IBaseFilter**)&This)))
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return E_OUTOFMEMORY;
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else
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{
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ISeekingPassThru *passthru;
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CoCreateInstance(&CLSID_SeekingPassThru, (IUnknown*)This, CLSCTX_INPROC_SERVER, &IID_IUnknown, (void**)&This->seekthru_unk);
|
||||
IUnknown_QueryInterface(This->seekthru_unk, &IID_ISeekingPassThru, (void**)&passthru);
|
||||
ISeekingPassThru_Init(passthru, FALSE, (IPin*)This->tf.ppPins[0]);
|
||||
ISeekingPassThru_Release(passthru);
|
||||
}
|
||||
|
||||
This->gstreamer_name = name;
|
||||
*obj = This;
|
||||
|
||||
return S_OK;
|
||||
}
|
||||
|
||||
HRESULT WINAPI GSTTf_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv)
|
||||
{
|
||||
HRESULT hr;
|
||||
GstTfImpl *This = (GstTfImpl*)iface;
|
||||
TRACE("(%p/%p)->(%s, %p)\n", This, iface, debugstr_guid(riid), ppv);
|
||||
|
||||
if (IsEqualIID(riid, &IID_IMediaSeeking))
|
||||
return IUnknown_QueryInterface(This->seekthru_unk, riid, ppv);
|
||||
|
||||
hr = TransformFilterImpl_QueryInterface(iface, riid, ppv);
|
||||
|
||||
return hr;
|
||||
}
|
||||
|
||||
static const IBaseFilterVtbl GSTTf_Vtbl =
|
||||
{
|
||||
GSTTf_QueryInterface,
|
||||
BaseFilterImpl_AddRef,
|
||||
TransformFilterImpl_Release,
|
||||
BaseFilterImpl_GetClassID,
|
||||
TransformFilterImpl_Stop,
|
||||
TransformFilterImpl_Pause,
|
||||
TransformFilterImpl_Run,
|
||||
BaseFilterImpl_GetState,
|
||||
BaseFilterImpl_SetSyncSource,
|
||||
BaseFilterImpl_GetSyncSource,
|
||||
BaseFilterImpl_EnumPins,
|
||||
TransformFilterImpl_FindPin,
|
||||
BaseFilterImpl_QueryFilterInfo,
|
||||
BaseFilterImpl_JoinFilterGraph,
|
||||
BaseFilterImpl_QueryVendorInfo
|
||||
};
|
||||
Loading…
Reference in New Issue