diff options
Diffstat (limited to 'sys/dshowsrcwrapper/gstdshowvideosrc.cpp')
| -rw-r--r-- | sys/dshowsrcwrapper/gstdshowvideosrc.cpp | 103 |
1 files changed, 73 insertions, 30 deletions
diff --git a/sys/dshowsrcwrapper/gstdshowvideosrc.cpp b/sys/dshowsrcwrapper/gstdshowvideosrc.cpp index 433e2cbcc..c2f9efe9e 100644 --- a/sys/dshowsrcwrapper/gstdshowvideosrc.cpp +++ b/sys/dshowsrcwrapper/gstdshowvideosrc.cpp @@ -37,11 +37,6 @@ GST_ELEMENT_DETAILS ("DirectShow video capture source", 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, @@ -103,7 +98,9 @@ static GstFlowReturn gst_dshowvideosrc_create (GstPushSrc * psrc, /*utils*/ static GstCaps *gst_dshowvideosrc_getcaps_from_streamcaps (GstDshowVideoSrc * - src, IPin * pin, IAMStreamConfig * streamcaps); + src, IPin * pin); +static GstCaps *gst_dshowvideosrc_getcaps_from_enum_mediatypes (GstDshowVideoSrc * + src, IPin * pin); static gboolean gst_dshowvideosrc_push_buffer (byte * buffer, long size, gpointer src_object, UINT64 start, UINT64 stop); @@ -540,18 +537,16 @@ gst_dshowvideosrc_get_caps (GstBaseSrc * basesrc) /* 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); - + gst_dshowvideosrc_getcaps_from_streamcaps (src, capture_pin); if (caps) { gst_caps_append (src->caps, caps); + } else { + caps = gst_dshowvideosrc_getcaps_from_enum_mediatypes (src, capture_pin); + if (caps) + gst_caps_append (src->caps, caps); } - streamcaps->Release (); } } @@ -564,6 +559,8 @@ gst_dshowvideosrc_get_caps (GstBaseSrc * basesrc) } } + g_print ("caps: %s\n", gst_caps_to_string (src->caps)); + if (unidevice) { g_free (unidevice); } @@ -874,8 +871,7 @@ gst_dshowvideosrc_create (GstPushSrc * psrc, GstBuffer ** buf) } static GstCaps * -gst_dshowvideosrc_getcaps_from_streamcaps (GstDshowVideoSrc * src, IPin * pin, - IAMStreamConfig * streamcaps) +gst_dshowvideosrc_getcaps_from_streamcaps (GstDshowVideoSrc * src, IPin * pin) { GstCaps *caps = NULL; HRESULT hres = S_OK; @@ -883,36 +879,36 @@ gst_dshowvideosrc_getcaps_from_streamcaps (GstDshowVideoSrc * src, IPin * pin, int isize = 0; VIDEO_STREAM_CONFIG_CAPS vscc; int i = 0; + IAMStreamConfig *streamcaps = NULL; - if (!streamcaps) + hres = pin->QueryInterface (IID_IAMStreamConfig, (LPVOID *) & streamcaps); + if (FAILED (hres)) { + GST_ERROR ("Failed to retrieve IAMStreamConfig (error=0x%x)", hres); return NULL; + } streamcaps->GetNumberOfCapabilities (&icount, &isize); - if (isize != sizeof (vscc)) + if (isize != sizeof (vscc)) { + streamcaps->Release (); return NULL; + } caps = gst_caps_new_empty (); - for (; i < icount; i++) { + for (i = 0; i < icount; i++) { GstCapturePinMediaType *pin_mediatype = - gst_dshow_new_pin_mediatype (pin, i, streamcaps); + gst_dshow_new_pin_mediatype_from_streamcaps (pin, i, streamcaps); if (pin_mediatype) { GstCaps *mediacaps = NULL; + GstVideoFormat video_format = + gst_dshow_guid_to_gst_video_format (pin_mediatype->mediatype); - if (gst_dshow_check_mediatype (pin_mediatype->mediatype, - MEDIASUBTYPE_I420, FORMAT_VideoInfo)) { - mediacaps = - gst_dshow_new_video_caps (GST_VIDEO_FORMAT_I420, NULL, - pin_mediatype); - - } else if (gst_dshow_check_mediatype (pin_mediatype->mediatype, - MEDIASUBTYPE_RGB24, FORMAT_VideoInfo)) { - mediacaps = - gst_dshow_new_video_caps (GST_VIDEO_FORMAT_BGR, NULL, + if (video_format != GST_VIDEO_FORMAT_UNKNOWN) { + mediacaps = gst_dshow_new_video_caps (video_format, NULL, pin_mediatype); } else if (gst_dshow_check_mediatype (pin_mediatype->mediatype, @@ -939,10 +935,57 @@ gst_dshowvideosrc_getcaps_from_streamcaps (GstDshowVideoSrc * src, IPin * pin, /* failed to convert dshow caps */ gst_dshow_free_pin_mediatype (pin_mediatype); } + } + } + + streamcaps->Release (); + if (caps && gst_caps_is_empty (caps)) { + gst_caps_unref (caps); + caps = NULL; + } + + return caps; +} + +static GstCaps * +gst_dshowvideosrc_getcaps_from_enum_mediatypes (GstDshowVideoSrc * src, IPin * pin) +{ + GstCaps *caps = NULL; + IEnumMediaTypes *enum_mediatypes = NULL; + HRESULT hres = S_OK; + GstCapturePinMediaType *pin_mediatype = NULL; + + hres = pin->EnumMediaTypes (&enum_mediatypes); + if (FAILED (hres)) { + GST_ERROR ("Failed to retrieve IEnumMediaTypes (error=0x%x)", hres); + return NULL; + } + + caps = gst_caps_new_empty (); + + while ((pin_mediatype = gst_dshow_new_pin_mediatype_from_enum_mediatypes (pin, enum_mediatypes)) != NULL) { + + GstCaps *mediacaps = NULL; + GstVideoFormat video_format = gst_dshow_guid_to_gst_video_format (pin_mediatype->mediatype); + + if (video_format != GST_VIDEO_FORMAT_UNKNOWN) + mediacaps = gst_video_format_new_caps (video_format, + pin_mediatype->defaultWidth, pin_mediatype->defaultHeight, + pin_mediatype->defaultFPS, 1, 1, 1); + + if (mediacaps) { + src->pins_mediatypes = + g_list_append (src->pins_mediatypes, pin_mediatype); + gst_caps_append (caps, mediacaps); + } else { + /* failed to convert dshow caps */ + gst_dshow_free_pin_mediatype (pin_mediatype); } } + enum_mediatypes->Release (); + if (caps && gst_caps_is_empty (caps)) { gst_caps_unref (caps); caps = NULL; |