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author | Dave Robillard <dave@drobilla.net> | 2009-07-22 14:02:16 -0400 |
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committer | Dave Robillard <dave@drobilla.net> | 2009-07-22 14:02:16 -0400 |
commit | ef6dbf9be87af7a91a50a910f8578ce3de75846c (patch) | |
tree | ef2ba06906d155c8dee835bdaafa06d09628e8bc /sys/dshowsrcwrapper/gstdshowvideosrc.cpp | |
parent | ba89c9e518ded3d919461903a444799a5115c34f (diff) | |
parent | 87a97e24d4b4e63dc2fa3a3a12f9b30bfbe54368 (diff) | |
download | gst-plugins-bad-ef6dbf9be87af7a91a50a910f8578ce3de75846c.tar.gz gst-plugins-bad-ef6dbf9be87af7a91a50a910f8578ce3de75846c.tar.bz2 gst-plugins-bad-ef6dbf9be87af7a91a50a910f8578ce3de75846c.zip |
Merge branch 'master' of git://anongit.freedesktop.org/gstreamer/gst-plugins-bad into fdo
Diffstat (limited to 'sys/dshowsrcwrapper/gstdshowvideosrc.cpp')
-rwxr-xr-x | sys/dshowsrcwrapper/gstdshowvideosrc.cpp | 1047 |
1 files changed, 1047 insertions, 0 deletions
diff --git a/sys/dshowsrcwrapper/gstdshowvideosrc.cpp b/sys/dshowsrcwrapper/gstdshowvideosrc.cpp new file mode 100755 index 00000000..67e70d96 --- /dev/null +++ b/sys/dshowsrcwrapper/gstdshowvideosrc.cpp @@ -0,0 +1,1047 @@ +/* GStreamer + * Copyright (C) 2007 Sebastien Moutte <sebastien@moutte.net> + * + * gstdshowvideosrc.c: + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "gstdshowvideosrc.h" + +static const GstElementDetails gst_dshowvideosrc_details = +GST_ELEMENT_DETAILS ("DirectShow video capture source", + "Source/Video", + "Receive data from a directshow video capture graph", + "Sebastien Moutte <sebastien@moutte.net>"); + +GST_DEBUG_CATEGORY_STATIC (dshowvideosrc_debug); +#define GST_CAT_DEFAULT dshowvideosrc_debug + +const GUID MEDIASUBTYPE_I420 + = { 0x30323449, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, + 0x71} +}; + +static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("video/x-raw-rgb," + "bpp = (int) 24," + "depth = (int) 24," + "width = (int) [ 1, MAX ]," + "height = (int) [ 1, MAX ]," + "framerate = (fraction) [ 0, MAX ];" + "video/x-dv," + "systemstream = (boolean) FALSE," + "width = (int) [ 1, MAX ]," + "height = (int) [ 1, MAX ]," + "framerate = (fraction) [ 0, MAX ]," + "format = (fourcc) dvsd;" + "video/x-dv," + "systemstream = (boolean) TRUE;" + "video/x-raw-yuv," + "width = (int) [ 1, MAX ]," + "height = (int) [ 1, MAX ]," + "framerate = (fraction) [ 0, MAX ]," "format = (fourcc) I420") + ); + +static void gst_dshowvideosrc_init_interfaces (GType type); + +GST_BOILERPLATE_FULL (GstDshowVideoSrc, gst_dshowvideosrc, GstPushSrc, + GST_TYPE_PUSH_SRC, gst_dshowvideosrc_init_interfaces); + +enum +{ + PROP_0, + PROP_DEVICE, + PROP_DEVICE_NAME +}; + +static void gst_dshowvideosrc_probe_interface_init (GstPropertyProbeInterface * + iface); +static const GList *gst_dshowvideosrc_probe_get_properties (GstPropertyProbe * + probe); +static GValueArray *gst_dshowvideosrc_probe_get_values (GstPropertyProbe * + probe, guint prop_id, const GParamSpec * pspec); +static GValueArray *gst_dshowvideosrc_get_device_name_values (GstDshowVideoSrc * + src); +static gboolean gst_dshowvideosrc_probe_needs_probe (GstPropertyProbe * probe, + guint prop_id, const GParamSpec * pspec); +static void gst_dshowvideosrc_probe_probe_property (GstPropertyProbe * probe, + guint prop_id, const GParamSpec * pspec); + + +static void gst_dshowvideosrc_dispose (GObject * gobject); +static void gst_dshowvideosrc_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec); +static void gst_dshowvideosrc_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec); +static GstCaps *gst_dshowvideosrc_get_caps (GstBaseSrc * src); +static GstStateChangeReturn gst_dshowvideosrc_change_state (GstElement * + element, GstStateChange transition); + + +static gboolean gst_dshowvideosrc_start (GstBaseSrc * bsrc); +static gboolean gst_dshowvideosrc_stop (GstBaseSrc * bsrc); +static gboolean gst_dshowvideosrc_unlock (GstBaseSrc * bsrc); +static gboolean gst_dshowvideosrc_unlock_stop (GstBaseSrc * bsrc); +static gboolean gst_dshowvideosrc_set_caps (GstBaseSrc * bsrc, GstCaps * caps); +static GstCaps *gst_dshowvideosrc_get_caps (GstBaseSrc * bsrc); +static GstFlowReturn gst_dshowvideosrc_create (GstPushSrc * psrc, + GstBuffer ** buf); + +/*utils*/ +static GstCaps *gst_dshowvideosrc_getcaps_from_streamcaps (GstDshowVideoSrc * + src, IPin * pin, IAMStreamConfig * streamcaps); +static gboolean gst_dshowvideosrc_push_buffer (byte * buffer, long size, + byte * src_object, UINT64 start, UINT64 stop); + +static void +gst_dshowvideosrc_init_interfaces (GType type) +{ + static const GInterfaceInfo dshowvideosrc_info = { + (GInterfaceInitFunc) gst_dshowvideosrc_probe_interface_init, + NULL, + NULL, + }; + + g_type_add_interface_static (type, + GST_TYPE_PROPERTY_PROBE, &dshowvideosrc_info); +} + +static void +gst_dshowvideosrc_probe_interface_init (GstPropertyProbeInterface * iface) +{ + iface->get_properties = gst_dshowvideosrc_probe_get_properties; + iface->needs_probe = gst_dshowvideosrc_probe_needs_probe; + iface->probe_property = gst_dshowvideosrc_probe_probe_property; + iface->get_values = gst_dshowvideosrc_probe_get_values; +} + +static void +gst_dshowvideosrc_base_init (gpointer klass) +{ + GstElementClass *element_class = GST_ELEMENT_CLASS (klass); + + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&src_template)); + + gst_element_class_set_details (element_class, &gst_dshowvideosrc_details); +} + +static void +gst_dshowvideosrc_class_init (GstDshowVideoSrcClass * klass) +{ + GObjectClass *gobject_class; + GstElementClass *gstelement_class; + GstBaseSrcClass *gstbasesrc_class; + GstPushSrcClass *gstpushsrc_class; + + gobject_class = (GObjectClass *) klass; + gstelement_class = (GstElementClass *) klass; + gstbasesrc_class = (GstBaseSrcClass *) klass; + gstpushsrc_class = (GstPushSrcClass *) klass; + + gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_dshowvideosrc_dispose); + gobject_class->set_property = + GST_DEBUG_FUNCPTR (gst_dshowvideosrc_set_property); + gobject_class->get_property = + GST_DEBUG_FUNCPTR (gst_dshowvideosrc_get_property); + + gstelement_class->change_state = + GST_DEBUG_FUNCPTR (gst_dshowvideosrc_change_state); + + gstbasesrc_class->get_caps = GST_DEBUG_FUNCPTR (gst_dshowvideosrc_get_caps); + gstbasesrc_class->set_caps = GST_DEBUG_FUNCPTR (gst_dshowvideosrc_set_caps); + gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_dshowvideosrc_start); + gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_dshowvideosrc_stop); + gstbasesrc_class->unlock = GST_DEBUG_FUNCPTR (gst_dshowvideosrc_unlock); + gstbasesrc_class->unlock_stop = + GST_DEBUG_FUNCPTR (gst_dshowvideosrc_unlock_stop); + + gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_dshowvideosrc_create); + + g_object_class_install_property + (gobject_class, PROP_DEVICE, + g_param_spec_string ("device", "Device", + "Directshow device path (@..classID/name)", NULL, + static_cast<GParamFlags>(G_PARAM_READWRITE))); + + g_object_class_install_property + (gobject_class, PROP_DEVICE_NAME, + g_param_spec_string ("device-name", "Device name", + "Human-readable name of the sound device", NULL, + static_cast<GParamFlags>(G_PARAM_READWRITE))); + + GST_DEBUG_CATEGORY_INIT (dshowvideosrc_debug, "dshowvideosrc", 0, + "Directshow video source"); + +} + +static void +gst_dshowvideosrc_init (GstDshowVideoSrc * src, GstDshowVideoSrcClass * klass) +{ + src->device = NULL; + src->device_name = NULL; + src->video_cap_filter = NULL; + src->dshow_fakesink = NULL; + src->media_filter = NULL; + src->filter_graph = NULL; + src->caps = NULL; + src->pins_mediatypes = NULL; + src->is_rgb = FALSE; + + src->buffer_cond = g_cond_new (); + src->buffer_mutex = g_mutex_new (); + src->buffer = NULL; + src->stop_requested = FALSE; + + CoInitializeEx (NULL, COINIT_MULTITHREADED); + + gst_base_src_set_live (GST_BASE_SRC (src), TRUE); +} + +static void +gst_dshowvideosrc_dispose (GObject * gobject) +{ + GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (gobject); + + if (src->device) { + g_free (src->device); + src->device = NULL; + } + + if (src->device_name) { + g_free (src->device_name); + src->device_name = NULL; + } + + if (src->caps) { + gst_caps_unref (src->caps); + src->caps = NULL; + } + + if (src->pins_mediatypes) { + gst_dshow_free_pins_mediatypes (src->pins_mediatypes); + src->pins_mediatypes = NULL; + } + + /* clean dshow */ + if (src->video_cap_filter) { + src->video_cap_filter->Release(); + src->video_cap_filter = NULL; + } + + if (src->buffer_mutex) { + g_mutex_free (src->buffer_mutex); + src->buffer_mutex = NULL; + } + + if (src->buffer_cond) { + g_cond_free (src->buffer_cond); + src->buffer_cond = NULL; + } + + if (src->buffer) { + gst_buffer_unref (src->buffer); + src->buffer = NULL; + } + + CoUninitialize (); + + G_OBJECT_CLASS (parent_class)->dispose (gobject); +} + +static gboolean +gst_dshowvideosrc_probe_needs_probe (GstPropertyProbe * probe, + guint prop_id, const GParamSpec * pspec) +{ + static gboolean init = FALSE; + gboolean ret = FALSE; + + if (!init) { + ret = TRUE; + init = TRUE; + } + + return ret; +} + +static void +gst_dshowvideosrc_probe_probe_property (GstPropertyProbe * probe, + guint prop_id, const GParamSpec * pspec) +{ + GObjectClass *klass = G_OBJECT_GET_CLASS (probe); + + switch (prop_id) { + case PROP_DEVICE_NAME: + //gst_v4l_class_probe_devices (klass, FALSE); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec); + break; + } +} + +static const GList * +gst_dshowvideosrc_probe_get_properties (GstPropertyProbe * probe) +{ + GObjectClass *klass = G_OBJECT_GET_CLASS (probe); + static GList *props = NULL; + + if (!props) { + GParamSpec *pspec; + + pspec = g_object_class_find_property (klass, "device-name"); + props = g_list_append (props, pspec); + } + + return props; +} + +static GValueArray * +gst_dshowvideosrc_get_device_name_values (GstDshowVideoSrc * src) +{ + GValueArray *array = g_value_array_new (0); + GValue value = { 0 }; + ICreateDevEnum *devices_enum = NULL; + IEnumMoniker *moniker_enum = NULL; + IMoniker *moniker = NULL; + HRESULT hres = S_FALSE; + ULONG fetched; + + g_value_init (&value, G_TYPE_STRING); + + hres = CoCreateInstance (CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER, + IID_ICreateDevEnum, (LPVOID *) &devices_enum); + if (hres != S_OK) { + GST_CAT_ERROR (dshowvideosrc_debug, + "Can't create an instance of the system device enumerator (error=%d)", + hres); + array = NULL; + goto clean; + } + + hres = devices_enum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory, + &moniker_enum, 0); + if (hres != S_OK || !moniker_enum) { + GST_CAT_ERROR (dshowvideosrc_debug, + "Can't get enumeration of video devices (error=%d)", hres); + array = NULL; + goto clean; + } + + moniker_enum->Reset(); + + while (hres = moniker_enum->Next(1, &moniker, &fetched), + hres == S_OK) { + IPropertyBag *property_bag = NULL; + + hres = + moniker->BindToStorage(NULL, NULL, IID_IPropertyBag, + (LPVOID *) &property_bag); + if (SUCCEEDED (hres) && property_bag) { + VARIANT varFriendlyName; + + VariantInit (&varFriendlyName); + hres = property_bag->Read(L"FriendlyName", &varFriendlyName, NULL); + if (hres == S_OK && varFriendlyName.bstrVal) { + gchar *friendly_name = + g_utf16_to_utf8 ((const gunichar2 *) varFriendlyName.bstrVal, + wcslen (varFriendlyName.bstrVal), NULL, NULL, NULL); + + g_value_set_string (&value, friendly_name); + g_value_array_append (array, &value); + g_value_unset (&value); + g_free (friendly_name); + SysFreeString (varFriendlyName.bstrVal); + } + property_bag->Release(); + } + moniker->Release(); + } + +clean: + if (moniker_enum) + moniker_enum->Release(); + + if (devices_enum) + devices_enum->Release(); + + return array; +} + +static GValueArray * +gst_dshowvideosrc_probe_get_values (GstPropertyProbe * probe, + guint prop_id, const GParamSpec * pspec) +{ + GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (probe); + GValueArray *array = NULL; + + switch (prop_id) { + case PROP_DEVICE_NAME: + array = gst_dshowvideosrc_get_device_name_values (src); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec); + break; + } + + return array; +} + +static void +gst_dshowvideosrc_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) +{ + GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (object); + + switch (prop_id) { + case PROP_DEVICE: + { + if (src->device) { + g_free (src->device); + src->device = NULL; + } + if (g_value_get_string (value)) { + src->device = g_strdup (g_value_get_string (value)); + } + break; + } + case PROP_DEVICE_NAME: + { + if (src->device_name) { + g_free (src->device_name); + src->device_name = NULL; + } + if (g_value_get_string (value)) { + src->device_name = g_strdup (g_value_get_string (value)); + } + break; + } + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gst_dshowvideosrc_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec) +{ + +} + +static GstCaps * +gst_dshowvideosrc_get_caps (GstBaseSrc * basesrc) +{ + HRESULT hres = S_OK; + IBindCtx *lpbc = NULL; + IMoniker *videom; + DWORD dwEaten; + GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (basesrc); + gunichar2 *unidevice = NULL; + + if (src->device) { + g_free (src->device); + src->device = NULL; + } + + src->device = + gst_dshow_getdevice_from_devicename (&CLSID_VideoInputDeviceCategory, + &src->device_name); + if (!src->device) { + GST_CAT_ERROR (dshowvideosrc_debug, "No video device found."); + return NULL; + } + unidevice = + g_utf8_to_utf16 (src->device, strlen (src->device), NULL, NULL, NULL); + + if (!src->video_cap_filter) { + hres = CreateBindCtx (0, &lpbc); + if (SUCCEEDED (hres)) { + hres = MkParseDisplayName (lpbc, (LPCOLESTR) unidevice, &dwEaten, &videom); + if (SUCCEEDED (hres)) { + hres = videom->BindToObject(lpbc, NULL, IID_IBaseFilter, + (LPVOID *) &src->video_cap_filter); + videom->Release(); + } + lpbc->Release(); + } + } + + if (!src->caps) { + src->caps = gst_caps_new_empty (); + } + + if (src->video_cap_filter && gst_caps_is_empty (src->caps)) { + /* get the capture pins supported types */ + IPin *capture_pin = NULL; + IEnumPins *enumpins = NULL; + HRESULT hres; + + hres = src->video_cap_filter->EnumPins(&enumpins); + if (SUCCEEDED (hres)) { + while (enumpins->Next(1, &capture_pin, NULL) == S_OK) { + IKsPropertySet *pKs = NULL; + hres = capture_pin->QueryInterface(IID_IKsPropertySet, (LPVOID *) &pKs); + if (SUCCEEDED (hres) && pKs) { + DWORD cbReturned; + GUID pin_category; + RPC_STATUS rpcstatus; + + hres = + pKs->Get(AMPROPSETID_Pin, + AMPROPERTY_PIN_CATEGORY, NULL, 0, &pin_category, sizeof (GUID), + &cbReturned); + + /* we only want capture pins */ + if (UuidCompare (&pin_category, (UUID *) &PIN_CATEGORY_CAPTURE, + &rpcstatus) == 0) { + IAMStreamConfig *streamcaps = NULL; + + if (SUCCEEDED (capture_pin->QueryInterface( + IID_IAMStreamConfig, (LPVOID *) &streamcaps))) { + GstCaps *caps = + gst_dshowvideosrc_getcaps_from_streamcaps (src, capture_pin, + streamcaps); + + if (caps) { + gst_caps_append (src->caps, caps); + } + streamcaps->Release(); + } + } + + pKs->Release(); + } + + capture_pin->Release(); + } + enumpins->Release(); + } + } + + if (unidevice) { + g_free (unidevice); + } + + if (src->caps) { + GST_CAT_LOG (dshowvideosrc_debug, "getcaps returned %s", + gst_caps_to_string (src->caps)); + return gst_caps_ref (src->caps); + } + + return NULL; +} + +static GstStateChangeReturn +gst_dshowvideosrc_change_state (GstElement * element, GstStateChange transition) +{ + HRESULT hres = S_FALSE; + IAMVfwCaptureDialogs *dialog = NULL; + GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (element); + + switch (transition) { + case GST_STATE_CHANGE_NULL_TO_READY: + break; + case GST_STATE_CHANGE_READY_TO_PAUSED: + break; + case GST_STATE_CHANGE_PAUSED_TO_PLAYING: + if (src->media_filter) + hres = src->media_filter->Run(0); + if (hres != S_OK) { + GST_CAT_ERROR (dshowvideosrc_debug, + "Can't RUN the directshow capture graph (error=%d)", hres); + return GST_STATE_CHANGE_FAILURE; + } + break; + case GST_STATE_CHANGE_PLAYING_TO_PAUSED: + if (src->media_filter) + hres = src->media_filter->Stop(); + if (hres != S_OK) { + GST_CAT_ERROR (dshowvideosrc_debug, + "Can't STOP the directshow capture graph (error=%d)", hres); + return GST_STATE_CHANGE_FAILURE; + } + break; + case GST_STATE_CHANGE_PAUSED_TO_READY: + break; + case GST_STATE_CHANGE_READY_TO_NULL: + break; + } + + return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); +} + +static gboolean +gst_dshowvideosrc_start (GstBaseSrc * bsrc) +{ + HRESULT hres = S_FALSE; + GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (bsrc); + + hres = CoCreateInstance (CLSID_FilterGraph, NULL, CLSCTX_INPROC, + IID_IFilterGraph, (LPVOID *) & src->filter_graph); + if (hres != S_OK || !src->filter_graph) { + GST_CAT_ERROR (dshowvideosrc_debug, + "Can't create an instance of the dshow graph manager (error=%d)", hres); + goto error; + } + + hres = src->filter_graph->QueryInterface(IID_IMediaFilter, + (LPVOID *) &src->media_filter); + if (hres != S_OK || !src->media_filter) { + GST_CAT_ERROR (dshowvideosrc_debug, + "Can't get IMediacontrol interface from the graph manager (error=%d)", + hres); + goto error; + } + + hres = CoCreateInstance (CLSID_DshowFakeSink, NULL, CLSCTX_INPROC, + IID_IBaseFilter, (LPVOID *) & src->dshow_fakesink); + if (hres != S_OK || !src->dshow_fakesink) { + GST_CAT_ERROR (dshowvideosrc_debug, + "Can't create an instance of our dshow fakesink filter (error=0x%x)", + hres); + goto error; + } + + hres = src->filter_graph->AddFilter(src->video_cap_filter, L"capture"); + if (hres != S_OK) { + GST_CAT_ERROR (dshowvideosrc_debug, + "Can't add video capture filter to the graph (error=%d)", hres); + goto error; + } + + hres = src->filter_graph->AddFilter(src->dshow_fakesink, L"sink"); + if (hres != S_OK) { + GST_CAT_ERROR (dshowvideosrc_debug, + "Can't add our fakesink filter to the graph (error=%d)", hres); + goto error; + } + + return TRUE; + +error: + if (src->dshow_fakesink) { + src->dshow_fakesink->Release(); + src->dshow_fakesink = NULL; + } + + if (src->media_filter) { + src->media_filter->Release(); + src->media_filter = NULL; + } + if (src->filter_graph) { + src->filter_graph->Release(); + src->filter_graph = NULL; + } + + return FALSE; +} + +static gboolean +gst_dshowvideosrc_set_caps (GstBaseSrc * bsrc, GstCaps * caps) +{ + HRESULT hres; + IGstDshowInterface *srcinterface = NULL; + IPin *input_pin = NULL; + GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (bsrc); + GstStructure *s = gst_caps_get_structure (caps, 0); + + /* search the negociated caps in our caps list to get its index and the corresponding mediatype */ + if (gst_caps_is_subset (caps, src->caps)) { + guint i = 0; + gint res = -1; + + for (; i < gst_caps_get_size (src->caps) && res == -1; i++) { + GstCaps *capstmp = gst_caps_copy_nth (src->caps, i); + + if (gst_caps_is_subset (caps, capstmp)) { + res = i; + } + gst_caps_unref (capstmp); + } + + if (res != -1 && src->pins_mediatypes) { + /* get the corresponding media type and build the dshow graph */ + GstCapturePinMediaType *pin_mediatype = NULL; + gchar *caps_string = NULL; + GList *type = g_list_nth (src->pins_mediatypes, res); + + if (type) { + pin_mediatype = (GstCapturePinMediaType *) type->data; + + hres = src->dshow_fakesink->QueryInterface( + IID_IGstDshowInterface, (LPVOID *) &srcinterface); + + if (hres != S_OK || !srcinterface) { + GST_CAT_ERROR (dshowvideosrc_debug, + "Can't get IGstDshowInterface interface from our dshow fakesink filter (error=%d)", + hres); + goto error; + } + + srcinterface->gst_set_media_type(pin_mediatype->mediatype); + srcinterface->gst_set_buffer_callback( + (push_buffer_func) gst_dshowvideosrc_push_buffer, (byte *) src); + + if (srcinterface) + srcinterface->Release(); + + gst_dshow_get_pin_from_filter (src->dshow_fakesink, PINDIR_INPUT, + &input_pin); + if (!input_pin) { + GST_CAT_ERROR (dshowvideosrc_debug, + "Can't get input pin from our dshow fakesink"); + goto error; + } + + hres = src->filter_graph->ConnectDirect(pin_mediatype->capture_pin, + input_pin, NULL); + input_pin->Release(); + + if (hres != S_OK) { + GST_CAT_ERROR (dshowvideosrc_debug, + "Can't connect capture filter with fakesink filter (error=%d)", + hres); + goto error; + } + + /* save width and height negociated */ + gst_structure_get_int (s, "width", &src->width); + gst_structure_get_int (s, "height", &src->height); + + src->is_rgb = FALSE; + caps_string = gst_caps_to_string (caps); + if (caps_string) { + if (strstr (caps_string, "video/x-raw-rgb")) { + src->is_rgb = TRUE; + } else { + src->is_rgb = FALSE; + } + g_free (caps_string); + } + } + } + } + + return TRUE; + +error: + if (srcinterface) + srcinterface->Release(); + + return FALSE; +} + +static gboolean +gst_dshowvideosrc_stop (GstBaseSrc * bsrc) +{ + IPin *input_pin = NULL, *output_pin = NULL; + HRESULT hres = S_FALSE; + GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (bsrc); + + if (!src->filter_graph) + return TRUE; + + /* disconnect filters */ + gst_dshow_get_pin_from_filter (src->video_cap_filter, PINDIR_OUTPUT, + &output_pin); + if (output_pin) { + hres = src->filter_graph->Disconnect(output_pin); + output_pin->Release(); + } + + gst_dshow_get_pin_from_filter (src->dshow_fakesink, PINDIR_INPUT, &input_pin); + if (input_pin) { + hres = src->filter_graph->Disconnect(input_pin); + input_pin->Release(); + } + + /*remove filters from the graph */ + src->filter_graph->RemoveFilter(src->video_cap_filter); + src->filter_graph->RemoveFilter(src->dshow_fakesink); + + /*release our gstreamer dshow sink */ + src->dshow_fakesink->Release(); + src->dshow_fakesink = NULL; + + /*release media filter interface */ + src->media_filter->Release(); + src->media_filter = NULL; + + /*release the filter graph manager */ + src->filter_graph->Release(); + src->filter_graph = NULL; + + return TRUE; +} + +static gboolean +gst_dshowvideosrc_unlock (GstBaseSrc * bsrc) +{ + GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (bsrc); + + g_mutex_lock (src->buffer_mutex); + src->stop_requested = TRUE; + g_cond_signal (src->buffer_cond); + g_mutex_unlock (src->buffer_mutex); + + return TRUE; +} + +static gboolean +gst_dshowvideosrc_unlock_stop (GstBaseSrc * bsrc) +{ + GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (bsrc); + + src->stop_requested = FALSE; + + return TRUE; +} + +static GstFlowReturn +gst_dshowvideosrc_create (GstPushSrc * psrc, GstBuffer ** buf) +{ + GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (psrc); + + g_mutex_lock (src->buffer_mutex); + while (src->buffer == NULL && !src->stop_requested) + g_cond_wait (src->buffer_cond, src->buffer_mutex); + *buf = src->buffer; + src->buffer = NULL; + g_mutex_unlock (src->buffer_mutex); + + if (src->stop_requested) { + if (*buf != NULL) { + gst_buffer_unref (*buf); + *buf = NULL; + } + return GST_FLOW_WRONG_STATE; + } + + GST_CAT_DEBUG (dshowvideosrc_debug, + "dshowvideosrc_create => pts %" GST_TIME_FORMAT " duration %" + GST_TIME_FORMAT, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (*buf)), + GST_TIME_ARGS (GST_BUFFER_DURATION (*buf))); + + return GST_FLOW_OK; +} + +static GstCaps * +gst_dshowvideosrc_getcaps_from_streamcaps (GstDshowVideoSrc * src, IPin * pin, + IAMStreamConfig * streamcaps) +{ + GstCaps *caps = NULL; + HRESULT hres = S_OK; + RPC_STATUS rpcstatus; + int icount = 0; + int isize = 0; + VIDEO_STREAM_CONFIG_CAPS vscc; + int i = 0; + + if (!streamcaps) + return NULL; + + streamcaps->GetNumberOfCapabilities(&icount, &isize); + + if (isize != sizeof (vscc)) + return NULL; + + for (; i < icount; i++) { + GstCapturePinMediaType *pin_mediatype = g_new0 (GstCapturePinMediaType, 1); + + pin->AddRef(); + pin_mediatype->capture_pin = pin; + + hres = streamcaps->GetStreamCaps(i, &pin_mediatype->mediatype, (BYTE *) & vscc); + if (hres == S_OK && pin_mediatype->mediatype) { + VIDEOINFOHEADER *video_info; + GstCaps *mediacaps = NULL; + + if (!caps) + caps = gst_caps_new_empty (); + + /* I420 */ + if ((UuidCompare (&pin_mediatype->mediatype->subtype, (UUID *) &MEDIASUBTYPE_I420, + &rpcstatus) == 0 && rpcstatus == RPC_S_OK) + && (UuidCompare (&pin_mediatype->mediatype->formattype, + (UUID *) &FORMAT_VideoInfo, &rpcstatus) == 0 + && rpcstatus == RPC_S_OK)) { + video_info = (VIDEOINFOHEADER *) pin_mediatype->mediatype->pbFormat; + + mediacaps = gst_caps_new_simple ("video/x-raw-yuv", + "width", G_TYPE_INT, video_info->bmiHeader.biWidth, + "height", G_TYPE_INT, video_info->bmiHeader.biHeight, + "framerate", GST_TYPE_FRACTION, + (int) (10000000 / video_info->AvgTimePerFrame), 1, "format", + GST_TYPE_FOURCC, MAKEFOURCC ('I', '4', '2', '0'), NULL); + + if (mediacaps) { + src->pins_mediatypes = + g_list_append (src->pins_mediatypes, pin_mediatype); + gst_caps_append (caps, mediacaps); + } else { + gst_dshow_free_pin_mediatype (pin_mediatype); + } + continue; + } + + /* RGB24 */ + if ((UuidCompare (&pin_mediatype->mediatype->subtype, (UUID *) &MEDIASUBTYPE_RGB24, + &rpcstatus) == 0 && rpcstatus == RPC_S_OK) + && (UuidCompare (&pin_mediatype->mediatype->formattype, + (UUID *) &FORMAT_VideoInfo, &rpcstatus) == 0 + && rpcstatus == RPC_S_OK)) { + video_info = (VIDEOINFOHEADER *) pin_mediatype->mediatype->pbFormat; + + /* ffmpegcolorspace handles RGB24 in BIG_ENDIAN */ + mediacaps = gst_caps_new_simple ("video/x-raw-rgb", + "bpp", G_TYPE_INT, 24, + "depth", G_TYPE_INT, 24, + "width", G_TYPE_INT, video_info->bmiHeader.biWidth, + "height", G_TYPE_INT, video_info->bmiHeader.biHeight, + "framerate", GST_TYPE_FRACTION, + (int) (10000000 / video_info->AvgTimePerFrame), 1, "endianness", + G_TYPE_INT, G_BIG_ENDIAN, "red_mask", G_TYPE_INT, 255, "green_mask", + G_TYPE_INT, 65280, "blue_mask", G_TYPE_INT, 16711680, NULL); + + if (mediacaps) { + src->pins_mediatypes = + g_list_append (src->pins_mediatypes, pin_mediatype); + gst_caps_append (caps, mediacaps); + } else { + gst_dshow_free_pin_mediatype (pin_mediatype); + } + continue; + } + + /* DVSD */ + if ((UuidCompare (&pin_mediatype->mediatype->subtype, (UUID *) &MEDIASUBTYPE_dvsd, + &rpcstatus) == 0 && rpcstatus == RPC_S_OK) + && (UuidCompare (&pin_mediatype->mediatype->formattype, + (UUID *) &FORMAT_VideoInfo, &rpcstatus) == 0 + && rpcstatus == RPC_S_OK)) { + video_info = (VIDEOINFOHEADER *) pin_mediatype->mediatype->pbFormat; + + mediacaps = gst_caps_new_simple ("video/x-dv", + "systemstream", G_TYPE_BOOLEAN, FALSE, + "format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('d', 'v', 's', 'd'), + "framerate", GST_TYPE_FRACTION, + (int) (10000000 / video_info->AvgTimePerFrame), 1, "width", + G_TYPE_INT, video_info->bmiHeader.biWidth, "height", G_TYPE_INT, + video_info->bmiHeader.biHeight, NULL); + + if (mediacaps) { + src->pins_mediatypes = + g_list_append (src->pins_mediatypes, pin_mediatype); + gst_caps_append (caps, mediacaps); + } else { + gst_dshow_free_pin_mediatype (pin_mediatype); + } + continue; + } + + /* DV stream */ + if ((UuidCompare (&pin_mediatype->mediatype->subtype, (UUID *) &MEDIASUBTYPE_dvsd, + &rpcstatus) == 0 && rpcstatus == RPC_S_OK) + && (UuidCompare (&pin_mediatype->mediatype->formattype, + (UUID *) &FORMAT_DvInfo, &rpcstatus) == 0 && rpcstatus == RPC_S_OK)) { + + mediacaps = gst_caps_new_simple ("video/x-dv", + "systemstream", G_TYPE_BOOLEAN, TRUE, NULL); + + if (mediacaps) { + src->pins_mediatypes = + g_list_append (src->pins_mediatypes, pin_mediatype); + gst_caps_append (caps, mediacaps); + } else { + gst_dshow_free_pin_mediatype (pin_mediatype); + } + continue; + } + } else { + gst_dshow_free_pin_mediatype (pin_mediatype); + } + } + + if (caps && gst_caps_is_empty (caps)) { + gst_caps_unref (caps); + caps = NULL; + } + + return caps; +} + +static gboolean +gst_dshowvideosrc_push_buffer (byte * buffer, long size, byte * src_object, + UINT64 start, UINT64 stop) +{ + GstDshowVideoSrc *src = GST_DSHOWVIDEOSRC (src_object); + GstBuffer *buf; + IPin *pPin = NULL; + HRESULT hres = S_FALSE; + AM_MEDIA_TYPE *pMediaType = NULL; + + if (!buffer || size == 0 || !src) { + return FALSE; + } + + /* create a new buffer assign to it the clock time as timestamp */ + buf = gst_buffer_new_and_alloc (size); + + GST_BUFFER_SIZE (buf) = size; + GST_BUFFER_TIMESTAMP (buf) = gst_clock_get_time (GST_ELEMENT (src)->clock); + GST_BUFFER_TIMESTAMP (buf) -= GST_ELEMENT (src)->base_time; + GST_BUFFER_DURATION (buf) = stop - start; + + if (src->is_rgb) { + /* FOR RGB directshow decoder will return bottom-up BITMAP + * There is probably a way to get top-bottom video frames from + * the decoder... + */ + gint line = 0; + gint stride = size / src->height; + + for (; line < src->height; line++) { + memcpy (GST_BUFFER_DATA (buf) + (line * stride), + buffer + (size - ((line + 1) * (stride))), stride); + } + } else { + memcpy (GST_BUFFER_DATA (buf), buffer, size); + } + + GST_CAT_DEBUG (dshowvideosrc_debug, + "push_buffer => pts %" GST_TIME_FORMAT "duration %" GST_TIME_FORMAT, + GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)), GST_TIME_ARGS (stop - start)); + + /* the negotiate() method already set caps on the source pad */ + gst_buffer_set_caps (buf, GST_PAD_CAPS (GST_BASE_SRC_PAD (src))); + + g_mutex_lock (src->buffer_mutex); + if (src->buffer != NULL) + gst_buffer_unref (src->buffer); + src->buffer = buf; + g_cond_signal (src->buffer_cond); + g_mutex_unlock (src->buffer_mutex); + + return TRUE; +} |