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winegstreamer: Add a GstPad wrapping the media source's bytestream. 

Signed-off-by: Derek Lesho <dlesho@codeweavers.com>
Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Derek Lesho 2020-09-28 15:59:52 -05:00 committed by Alexandre Julliard
parent 45aee6375d
commit a4d6ad6d49
4 changed files with 258 additions and 4 deletions
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58
dlls/winegstreamer/gst_cbs.c
View File

@ -49,6 +49,8 @@ static void CALLBACK perform_cb(TP_CALLBACK_INSTANCE *instance, void *user)
if (cbdata->type < GSTDEMUX_MAX)
perform_cb_gstdemux(cbdata);
else if (cbdata->type < MEDIA_SOURCE_MAX)
perform_cb_media_source(cbdata);
pthread_mutex_lock(&cbdata->lock);
cbdata->finished = 1;
@ -301,3 +303,59 @@ gboolean query_sink_wrapper(GstPad *pad, GstObject *parent, GstQuery *query)
return cbdata.u.query_sink_data.ret;
}
GstFlowReturn bytestream_wrapper_pull_wrapper(GstPad *pad, GstObject *parent, guint64 ofs, guint len,
GstBuffer **buf)
{
struct cb_data cbdata = { BYTESTREAM_WRAPPER_PULL };
cbdata.u.getrange_data.pad = pad;
cbdata.u.getrange_data.parent = parent;
cbdata.u.getrange_data.ofs = ofs;
cbdata.u.getrange_data.len = len;
cbdata.u.getrange_data.buf = buf;
call_cb(&cbdata);
return cbdata.u.getrange_data.ret;
}
gboolean bytestream_query_wrapper(GstPad *pad, GstObject *parent, GstQuery *query)
{
struct cb_data cbdata = { BYTESTREAM_QUERY };
cbdata.u.query_function_data.pad = pad;
cbdata.u.query_function_data.parent = parent;
cbdata.u.query_function_data.query = query;
call_cb(&cbdata);
return cbdata.u.query_function_data.ret;
}
gboolean bytestream_pad_mode_activate_wrapper(GstPad *pad, GstObject *parent, GstPadMode mode, gboolean activate)
{
struct cb_data cbdata = { BYTESTREAM_PAD_MODE_ACTIVATE };
cbdata.u.activate_mode_data.pad = pad;
cbdata.u.activate_mode_data.parent = parent;
cbdata.u.activate_mode_data.mode = mode;
cbdata.u.activate_mode_data.activate = activate;
call_cb(&cbdata);
return cbdata.u.activate_mode_data.ret;
}
gboolean bytestream_pad_event_process_wrapper(GstPad *pad, GstObject *parent, GstEvent *event)
{
struct cb_data cbdata = { BYTESTREAM_PAD_EVENT_PROCESS };
cbdata.u.event_src_data.pad = pad;
cbdata.u.event_src_data.parent = parent;
cbdata.u.event_src_data.event = event;
call_cb(&cbdata);
return cbdata.u.event_src_data.ret;
}

12
dlls/winegstreamer/gst_cbs.h
View File

@ -43,7 +43,12 @@ enum CB_TYPE {
AUTOPLUG_BLACKLIST,
UNKNOWN_TYPE,
QUERY_SINK,
GSTDEMUX_MAX
GSTDEMUX_MAX,
BYTESTREAM_WRAPPER_PULL,
BYTESTREAM_QUERY,
BYTESTREAM_PAD_MODE_ACTIVATE,
BYTESTREAM_PAD_EVENT_PROCESS,
MEDIA_SOURCE_MAX,
};
struct cb_data {
@ -138,6 +143,7 @@ struct cb_data {
void mark_wine_thread(void) DECLSPEC_HIDDEN;
void perform_cb_gstdemux(struct cb_data *data) DECLSPEC_HIDDEN;
void perform_cb_media_source(struct cb_data *data) DECLSPEC_HIDDEN;
GstBusSyncReply watch_bus_wrapper(GstBus *bus, GstMessage *msg, gpointer user) DECLSPEC_HIDDEN;
void existing_new_pad_wrapper(GstElement *bin, GstPad *pad, gpointer user) DECLSPEC_HIDDEN;
@ -154,5 +160,9 @@ GstAutoplugSelectResult autoplug_blacklist_wrapper(GstElement *bin, GstPad *pad,
void unknown_type_wrapper(GstElement *bin, GstPad *pad, GstCaps *caps, gpointer user) DECLSPEC_HIDDEN;
void Gstreamer_transform_pad_added_wrapper(GstElement *filter, GstPad *pad, gpointer user) DECLSPEC_HIDDEN;
gboolean query_sink_wrapper(GstPad *pad, GstObject *parent, GstQuery *query) DECLSPEC_HIDDEN;
GstFlowReturn bytestream_wrapper_pull_wrapper(GstPad *pad, GstObject *parent, guint64 ofs, guint len, GstBuffer **buf) DECLSPEC_HIDDEN;
gboolean bytestream_query_wrapper(GstPad *pad, GstObject *parent, GstQuery *query) DECLSPEC_HIDDEN;
gboolean bytestream_pad_mode_activate_wrapper(GstPad *pad, GstObject *parent, GstPadMode mode, gboolean activate) DECLSPEC_HIDDEN;
gboolean bytestream_pad_event_process_wrapper(GstPad *pad, GstObject *parent, GstEvent *event) DECLSPEC_HIDDEN;
#endif

3
dlls/winegstreamer/main.c
View File

@ -146,6 +146,9 @@ HRESULT WINAPI DllGetClassObject(REFCLSID clsid, REFIID iid, void **out)
TRACE("clsid %s, iid %s, out %p.\n", debugstr_guid(clsid), debugstr_guid(iid), out);
if (!init_gstreamer())
return CLASS_E_CLASSNOTAVAILABLE;
if (SUCCEEDED(hr = mfplat_get_class_object(clsid, iid, out)))
return hr;

189
dlls/winegstreamer/media_source.c
View File

@ -17,9 +17,15 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <gst/gst.h>
#include "gst_private.h"
#include "gst_cbs.h"
#include <stdarg.h>
#include <assert.h>
#define COBJMACROS
#define NONAMELESSUNION
@ -27,6 +33,7 @@
#include "mfapi.h"
#include "mferror.h"
#include "mfidl.h"
#include "mfobjects.h"
#include "wine/debug.h"
#include "wine/heap.h"
@ -39,6 +46,8 @@ struct media_source
IMFMediaSource IMFMediaSource_iface;
LONG ref;
IMFMediaEventQueue *event_queue;
IMFByteStream *byte_stream;
GstPad *my_src;
enum
{
SOURCE_OPENING,
@ -52,6 +61,127 @@ static inline struct media_source *impl_from_IMFMediaSource(IMFMediaSource *ifac
return CONTAINING_RECORD(iface, struct media_source, IMFMediaSource_iface);
}
static GstFlowReturn bytestream_wrapper_pull(GstPad *pad, GstObject *parent, guint64 ofs, guint len,
GstBuffer **buf)
{
struct media_source *source = gst_pad_get_element_private(pad);
IMFByteStream *byte_stream = source->byte_stream;
ULONG bytes_read;
GstMapInfo info;
BOOL is_eof;
HRESULT hr;
TRACE("requesting %u bytes at %s from source %p into buffer %p\n", len, wine_dbgstr_longlong(ofs), source, *buf);
if (ofs != GST_BUFFER_OFFSET_NONE)
{
if (FAILED(IMFByteStream_SetCurrentPosition(byte_stream, ofs)))
return GST_FLOW_ERROR;
}
if (FAILED(IMFByteStream_IsEndOfStream(byte_stream, &is_eof)))
return GST_FLOW_ERROR;
if (is_eof)
return GST_FLOW_EOS;
if (!(*buf))
*buf = gst_buffer_new_and_alloc(len);
gst_buffer_map(*buf, &info, GST_MAP_WRITE);
hr = IMFByteStream_Read(byte_stream, info.data, len, &bytes_read);
gst_buffer_unmap(*buf, &info);
gst_buffer_set_size(*buf, bytes_read);
if (FAILED(hr))
return GST_FLOW_ERROR;
return GST_FLOW_OK;
}
static gboolean bytestream_query(GstPad *pad, GstObject *parent, GstQuery *query)
{
struct media_source *source = gst_pad_get_element_private(pad);
GstFormat format;
QWORD bytestream_len;
TRACE("GStreamer queries source %p for %s\n", source, GST_QUERY_TYPE_NAME(query));
if (FAILED(IMFByteStream_GetLength(source->byte_stream, &bytestream_len)))
return FALSE;
switch (GST_QUERY_TYPE(query))
{
case GST_QUERY_DURATION:
{
gst_query_parse_duration(query, &format, NULL);
if (format == GST_FORMAT_PERCENT)
{
gst_query_set_duration(query, GST_FORMAT_PERCENT, GST_FORMAT_PERCENT_MAX);
return TRUE;
}
else if (format == GST_FORMAT_BYTES)
{
QWORD length;
IMFByteStream_GetLength(source->byte_stream, &length);
gst_query_set_duration(query, GST_FORMAT_BYTES, length);
return TRUE;
}
return FALSE;
}
case GST_QUERY_SEEKING:
{
gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
if (format != GST_FORMAT_BYTES)
{
WARN("Cannot seek using format \"%s\".\n", gst_format_get_name(format));
return FALSE;
}
gst_query_set_seeking(query, GST_FORMAT_BYTES, 1, 0, bytestream_len);
return TRUE;
}
case GST_QUERY_SCHEDULING:
{
gst_query_set_scheduling(query, GST_SCHEDULING_FLAG_SEEKABLE, 1, -1, 0);
gst_query_add_scheduling_mode(query, GST_PAD_MODE_PULL);
return TRUE;
}
default:
{
WARN("Unhandled query type %s\n", GST_QUERY_TYPE_NAME(query));
return FALSE;
}
}
}
static gboolean bytestream_pad_mode_activate(GstPad *pad, GstObject *parent, GstPadMode mode, gboolean activate)
{
struct media_source *source = gst_pad_get_element_private(pad);
TRACE("%s source pad for mediasource %p in %s mode.\n",
activate ? "Activating" : "Deactivating", source, gst_pad_mode_get_name(mode));
return mode == GST_PAD_MODE_PULL;
}
static gboolean bytestream_pad_event_process(GstPad *pad, GstObject *parent, GstEvent *event)
{
struct media_source *source = gst_pad_get_element_private(pad);
TRACE("source %p, type \"%s\".\n", source, GST_EVENT_TYPE_NAME(event));
switch (event->type) {
/* the seek event should fail in pull mode */
case GST_EVENT_SEEK:
return FALSE;
default:
WARN("Ignoring \"%s\" event.\n", GST_EVENT_TYPE_NAME(event));
case GST_EVENT_TAG:
case GST_EVENT_QOS:
case GST_EVENT_RECONFIGURE:
return gst_pad_event_default(pad, parent, event);
}
return TRUE;
}
static HRESULT WINAPI media_source_QueryInterface(IMFMediaSource *iface, REFIID riid, void **out)
{
struct media_source *source = impl_from_IMFMediaSource(iface);
@ -211,8 +341,12 @@ static HRESULT WINAPI media_source_Shutdown(IMFMediaSource *iface)
source->state = SOURCE_SHUTDOWN;
if (source->my_src)
gst_object_unref(GST_OBJECT(source->my_src));
if (source->event_queue)
IMFMediaEventQueue_Shutdown(source->event_queue);
if (source->byte_stream)
IMFByteStream_Release(source->byte_stream);
return S_OK;
}
@ -236,19 +370,31 @@ static const IMFMediaSourceVtbl IMFMediaSource_vtbl =
static HRESULT media_source_constructor(IMFByteStream *bytestream, struct media_source **out_media_source)
{
GstStaticPadTemplate src_template =
GST_STATIC_PAD_TEMPLATE("mf_src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS_ANY);
struct media_source *object = heap_alloc_zero(sizeof(*object));
HRESULT hr;
if (!object)
return E_OUTOFMEMORY;
object->IMFMediaSource_iface.lpVtbl = &IMFMediaSource_vtbl;
object->ref = 1;
object->byte_stream = bytestream;
IMFByteStream_AddRef(bytestream);
if (FAILED(hr = MFCreateEventQueue(&object->event_queue)))
goto fail;
object->state = SOURCE_STOPPED;
object->my_src = gst_pad_new_from_static_template(&src_template, "mf-src");
gst_pad_set_element_private(object->my_src, object);
gst_pad_set_getrange_function(object->my_src, bytestream_wrapper_pull_wrapper);
gst_pad_set_query_function(object->my_src, bytestream_query_wrapper);
gst_pad_set_activatemode_function(object->my_src, bytestream_pad_mode_activate_wrapper);
gst_pad_set_event_function(object->my_src, bytestream_pad_event_process_wrapper);
object->IMFMediaSource_iface.lpVtbl = &IMFMediaSource_vtbl;
object->ref = 1;
object->state = SOURCE_STOPPED;
*out_media_source = object;
return S_OK;
@ -716,3 +862,40 @@ HRESULT winegstreamer_stream_handler_create(REFIID riid, void **obj)
return hr;
}
/* helper for callback forwarding */
void perform_cb_media_source(struct cb_data *cbdata)
{
switch(cbdata->type)
{
case BYTESTREAM_WRAPPER_PULL:
{
struct getrange_data *data = &cbdata->u.getrange_data;
cbdata->u.getrange_data.ret = bytestream_wrapper_pull(data->pad, data->parent,
data->ofs, data->len, data->buf);
break;
}
case BYTESTREAM_QUERY:
{
struct query_function_data *data = &cbdata->u.query_function_data;
cbdata->u.query_function_data.ret = bytestream_query(data->pad, data->parent, data->query);
break;
}
case BYTESTREAM_PAD_MODE_ACTIVATE:
{
struct activate_mode_data *data = &cbdata->u.activate_mode_data;
cbdata->u.activate_mode_data.ret = bytestream_pad_mode_activate(data->pad, data->parent, data->mode, data->activate);
break;
}
case BYTESTREAM_PAD_EVENT_PROCESS:
{
struct event_src_data *data = &cbdata->u.event_src_data;
cbdata->u.event_src_data.ret = bytestream_pad_event_process(data->pad, data->parent, data->event);
break;
}
default:
{
assert(0);
}
}
}