winegstreamer: Add structure for gstreamer transform filters.

This commit is contained in:
Aric Stewart 2010-10-27 13:14:06 -05:00 committed by Alexandre Julliard
parent 35643b73e3
commit aeb19307c7
2 changed files with 476 additions and 0 deletions

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@ -6,6 +6,7 @@ EXTRALIBS = @GSTREAMER_LIBS@ @LIBPTHREAD@
C_SRCS = \
glibthread.c \
gstdemux.c \
gsttffilter.c \
main.c
RC_SRCS = \

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@ -0,0 +1,475 @@
/*
* GStreamer wrapper filter
*
* Copyright 2010 Maarten Lankhorst for CodeWeavers
* Copyright 2010 Aric Stewart for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
*/
#include "config.h"
#include <gst/app/gstappsink.h>
#include <gst/app/gstappsrc.h>
#include <gst/app/gstappbuffer.h>
#include "gst_private.h"
#include "gst_guids.h"
#include "uuids.h"
#include "mmreg.h"
#include "windef.h"
#include "winbase.h"
#include "dshow.h"
#include "strmif.h"
#include "vfwmsgs.h"
#include "dvdmedia.h"
#include "ks.h"
#include "ksmedia.h"
#include "msacm.h"
#include <assert.h>
#include "wine/unicode.h"
#include "wine/debug.h"
#include "initguid.h"
WINE_DEFAULT_DEBUG_CHANNEL(gstreamer);
struct typeinfo {
GstCaps *caps;
const char *type;
};
static const IBaseFilterVtbl GSTTf_Vtbl;
static gboolean match_element(GstPluginFeature *feature, gpointer gdata) {
struct typeinfo *data = (struct typeinfo*)gdata;
GstElementFactory *factory;
const GList *list;
if (!GST_IS_ELEMENT_FACTORY(feature))
return FALSE;
factory = GST_ELEMENT_FACTORY(feature);
if (!strstr(gst_element_factory_get_klass(factory), data->type))
return FALSE;
for (list = gst_element_factory_get_static_pad_templates(factory); list; list = list->next) {
GstStaticPadTemplate *pad = (GstStaticPadTemplate*)list->data;
GstCaps *caps;
gboolean ret;
if (pad->direction != GST_PAD_SINK)
continue;
caps = gst_static_caps_get(&pad->static_caps);
ret = gst_caps_is_always_compatible(caps, data->caps);
gst_caps_unref(caps);
if (ret)
return TRUE;
}
return FALSE;
}
static const char *Gstreamer_FindMatch(const char *strcaps)
{
struct typeinfo data;
GList *list, *copy;
guint bestrank = 0;
GstElementFactory *bestfactory = NULL;
GstCaps *caps = gst_caps_from_string(strcaps);
data.caps = caps;
data.type = "Decoder";
copy = gst_default_registry_feature_filter(match_element, 0, &data);
for (list = copy; list; list = list->next) {
GstElementFactory *factory = (GstElementFactory*)list->data;
guint rank;
rank = gst_plugin_feature_get_rank(GST_PLUGIN_FEATURE(factory));
if (rank > bestrank || !bestrank) {
bestrank = rank;
bestfactory = factory;
}
}
gst_caps_unref(caps);
g_list_free(copy);
if (!bestfactory) {
FIXME("Could not find plugin for %s\n", strcaps);
return NULL;
}
return gst_plugin_feature_get_name(GST_PLUGIN_FEATURE(bestfactory));
}
typedef struct GstTfImpl {
TransformFilter tf;
IUnknown *seekthru_unk;
const char *gstreamer_name;
GstElement *filter;
GstPad *my_src, *my_sink, *their_src, *their_sink;
LONG cbBuffer;
} GstTfImpl;
static HRESULT WINAPI Gstreamer_transform_ProcessBegin(TransformFilter *iface) {
GstTfImpl *This = (GstTfImpl*)iface;
int ret;
ret = gst_element_set_state(This->filter, GST_STATE_PLAYING);
TRACE("Returned: %i\n", ret);
return S_OK;
}
static HRESULT WINAPI Gstreamer_transform_DecideBufferSize(TransformFilter *tf, IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest)
{
GstTfImpl *This = (GstTfImpl*)tf;
ALLOCATOR_PROPERTIES actual;
if (!ppropInputRequest->cbAlign)
ppropInputRequest->cbAlign = 1;
ppropInputRequest->cbBuffer = This->cbBuffer;
if (!ppropInputRequest->cBuffers)
ppropInputRequest->cBuffers = 1;
return IMemAllocator_SetProperties(pAlloc, ppropInputRequest, &actual);
}
static void release_sample(void *data) {
TRACE("Releasing %p\n", data);
IMediaSample_Release((IMediaSample *)data);
}
static GstFlowReturn got_data(GstPad *pad, GstBuffer *buf) {
GstTfImpl *This = gst_pad_get_element_private(pad);
IMediaSample *sample = GST_APP_BUFFER(buf)->priv;
REFERENCE_TIME tStart, tStop;
HRESULT hr;
if (GST_BUFFER_TIMESTAMP_IS_VALID(buf) &&
GST_BUFFER_DURATION_IS_VALID(buf)) {
tStart = buf->timestamp / 100;
tStop = tStart + buf->duration / 100;
IMediaSample_SetTime(sample, &tStart, &tStop);
}
else
IMediaSample_SetTime(sample, NULL, NULL);
IMediaSample_SetDiscontinuity(sample, GST_BUFFER_FLAG_IS_SET(buf, GST_BUFFER_FLAG_DISCONT));
IMediaSample_SetPreroll(sample, GST_BUFFER_FLAG_IS_SET(buf, GST_BUFFER_FLAG_PREROLL));
IMediaSample_SetSyncPoint(sample, !GST_BUFFER_FLAG_IS_SET(buf, GST_BUFFER_FLAG_DELTA_UNIT));
hr = BaseOutputPinImpl_Deliver((BaseOutputPin*)This->tf.ppPins[1], sample);
gst_buffer_unref(buf);
if (FAILED(hr))
return GST_FLOW_WRONG_STATE;
if (hr != S_OK)
return GST_FLOW_RESEND;
return GST_FLOW_OK;
}
static GstFlowReturn request_buffer(GstPad *pad, guint64 ofs, guint size, GstCaps *caps, GstBuffer **buf) {
GstTfImpl *This = gst_pad_get_element_private(pad);
IMediaSample *sample;
BYTE *ptr;
HRESULT hr;
TRACE("Requesting buffer\n");
hr = BaseOutputPinImpl_GetDeliveryBuffer((BaseOutputPin*)This->tf.ppPins[1], &sample, NULL, NULL, 0);
if (FAILED(hr)) {
ERR("Could not get output buffer: %08x\n", hr);
return GST_FLOW_WRONG_STATE;
}
IMediaSample_SetActualDataLength(sample, size);
IMediaSample_GetPointer(sample, &ptr);
*buf = gst_app_buffer_new(ptr, size, release_sample, sample);
if (!*buf) {
IMediaSample_Release(sample);
ERR("Out of memory\n");
return GST_FLOW_ERROR;
}
if (!caps)
caps = gst_pad_get_caps_reffed(This->my_sink);
gst_buffer_set_caps(*buf, caps);
return GST_FLOW_OK;
}
static HRESULT WINAPI Gstreamer_transform_ProcessData(TransformFilter *iface, IMediaSample *sample) {
GstTfImpl *This = (GstTfImpl*)iface;
REFERENCE_TIME tStart, tStop;
BYTE *data;
GstBuffer *buf;
HRESULT hr;
int ret;
TRACE("Reading %p\n", sample);
EnterCriticalSection(&This->tf.filter.csFilter);
IMediaSample_GetPointer(sample, &data);
buf = gst_app_buffer_new(data, IMediaSample_GetActualDataLength(sample), release_sample, sample);
if (!buf) {
LeaveCriticalSection(&This->tf.filter.csFilter);
return S_OK;
}
gst_buffer_set_caps(buf, gst_pad_get_caps_reffed(This->my_src));
IMediaSample_AddRef(sample);
buf->duration = buf->timestamp = -1;
hr = IMediaSample_GetTime(sample, &tStart, &tStop);
if (SUCCEEDED(hr)) {
buf->timestamp = tStart * 100;
if (hr == S_OK)
buf->duration = (tStop - tStart)*100;
}
if (IMediaSample_IsDiscontinuity(sample) == S_OK)
GST_BUFFER_FLAG_SET(buf, GST_BUFFER_FLAG_DISCONT);
if (IMediaSample_IsPreroll(sample) == S_OK)
GST_BUFFER_FLAG_SET(buf, GST_BUFFER_FLAG_PREROLL);
if (IMediaSample_IsSyncPoint(sample) != S_OK)
GST_BUFFER_FLAG_SET(buf, GST_BUFFER_FLAG_DELTA_UNIT);
LeaveCriticalSection(&This->tf.filter.csFilter);
ret = gst_pad_push(This->my_src, buf);
if (ret)
WARN("Sending returned: %i\n", ret);
if (ret == GST_FLOW_ERROR)
return E_FAIL;
if (ret == GST_FLOW_WRONG_STATE)
return VFW_E_WRONG_STATE;
if (ret == GST_FLOW_RESEND)
return S_FALSE;
return S_OK;
}
static HRESULT WINAPI Gstreamer_transform_ProcessEnd(TransformFilter *iface) {
GstTfImpl *This = (GstTfImpl*)iface;
int ret;
ret = gst_element_set_state(This->filter, GST_STATE_PAUSED);
TRACE("Returned: %i\n", ret);
return S_OK;
}
static void Gstreamer_transform_pad_added(GstElement *filter, GstPad *pad, GstTfImpl *This)
{
int ret;
if (!GST_PAD_IS_SRC(pad))
return;
ret = gst_pad_link(pad, This->my_sink);
if (ret < 0)
WARN("Failed to link with %i\n", ret);
This->their_src = pad;
gst_pad_set_active(pad, TRUE);
gst_pad_set_active(This->my_sink, TRUE);
}
static HRESULT Gstreamer_transform_ConnectInput(GstTfImpl *This, const AM_MEDIA_TYPE *amt, GstCaps *capsin, GstCaps *capsout) {
GstIterator *it;
int done = 0, found = 0, ret;
This->filter = gst_element_factory_make(This->gstreamer_name, NULL);
if (!This->filter) {
FIXME("Could not make %s filter\n", This->gstreamer_name);
return E_FAIL;
}
This->my_src = gst_pad_new(NULL, GST_PAD_SRC);
gst_pad_set_element_private (This->my_src, This);
This->my_sink = gst_pad_new(NULL, GST_PAD_SINK);
gst_pad_set_chain_function(This->my_sink, got_data);
gst_pad_set_bufferalloc_function(This->my_sink, request_buffer);
gst_pad_set_element_private (This->my_sink, This);
ret = gst_pad_set_caps(This->my_src, capsin);
if (ret < 0) {
WARN("Failed to set caps on own source with %i\n", ret);
return E_FAIL;
}
ret = gst_pad_set_caps(This->my_sink, capsout);
if (ret < 0) {
WARN("Failed to set caps on own sink with %i\n", ret);
return E_FAIL;
}
it = gst_element_iterate_sink_pads(This->filter);
while (!done) {
gpointer item;
switch (gst_iterator_next(it, &item)) {
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_OK:
This->their_sink = item;
case GST_ITERATOR_ERROR:
case GST_ITERATOR_DONE:
done = 1;
break;
}
}
gst_iterator_free(it);
if (!This->their_sink) {
ERR("Could not find sink on filter %s\n", This->gstreamer_name);
return E_FAIL;
}
it = gst_element_iterate_src_pads(This->filter);
gst_iterator_resync(it);
done = 0;
while (!done) {
gpointer item;
switch (gst_iterator_next(it, &item)) {
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_OK:
This->their_src = item;
case GST_ITERATOR_ERROR:
case GST_ITERATOR_DONE:
done = 1;
break;
}
}
gst_iterator_free(it);
found = !!This->their_src;
if (!found)
g_signal_connect(This->filter, "pad-added", G_CALLBACK(Gstreamer_transform_pad_added), This);
ret = gst_pad_link(This->my_src, This->their_sink);
if (ret < 0) {
WARN("Failed to link with %i\n", ret);
return E_FAIL;
}
if (found)
Gstreamer_transform_pad_added(This->filter, This->their_src, This);
if (!gst_pad_is_linked(This->my_sink))
return E_FAIL;
TRACE("Connected\n");
return S_OK;
}
static HRESULT WINAPI Gstreamer_transform_Cleanup(TransformFilter *tf, PIN_DIRECTION dir) {
GstTfImpl *This = (GstTfImpl*)tf;
if (dir == PINDIR_INPUT)
{
if (This->filter) {
gst_element_set_state(This->filter, GST_STATE_NULL);
gst_object_unref(This->filter);
}
This->filter = NULL;
if (This->my_src) {
gst_pad_unlink(This->my_src, This->their_sink);
gst_object_unref(This->my_src);
}
if (This->my_sink) {
gst_pad_unlink(This->their_src, This->my_sink);
gst_object_unref(This->my_sink);
}
This->my_sink = This->my_src = This->their_sink = This->their_src = NULL;
FIXME("%p stub\n", This);
}
return S_OK;
}
static HRESULT WINAPI Gstreamer_transform_EndOfStream(TransformFilter *iface) {
GstTfImpl *This = (GstTfImpl*)iface;
TRACE("%p\n", This);
gst_pad_push_event(This->my_src, gst_event_new_eos());
return S_OK;
}
static HRESULT WINAPI Gstreamer_transform_BeginFlush(TransformFilter *iface) {
GstTfImpl *This = (GstTfImpl*)iface;
TRACE("%p\n", This);
gst_pad_push_event(This->my_src, gst_event_new_flush_start());
return S_OK;
}
static HRESULT WINAPI Gstreamer_transform_EndFlush(TransformFilter *iface) {
GstTfImpl *This = (GstTfImpl*)iface;
TRACE("%p\n", This);
gst_pad_push_event(This->my_src, gst_event_new_flush_stop());
return S_OK;
}
static HRESULT WINAPI Gstreamer_transform_NewSegment(TransformFilter *iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate) {
GstTfImpl *This = (GstTfImpl*)iface;
TRACE("%p\n", This);
gst_pad_push_event(This->my_src, gst_event_new_new_segment_full(1,
1.0, dRate, GST_FORMAT_TIME, tStart*100, tStop <= tStart ? -1 : tStop * 100, tStart*100));
return S_OK;
}
static HRESULT Gstreamer_transform_create(IUnknown *punkout, const CLSID *clsid, const char *name, const TransformFilterFuncTable *vtbl, void **obj)
{
GstTfImpl *This;
if (FAILED(TransformFilter_Construct(&GSTTf_Vtbl, sizeof(GstTfImpl), clsid, vtbl, (IBaseFilter**)&This)))
return E_OUTOFMEMORY;
else
{
ISeekingPassThru *passthru;
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
};