/* * GStreamer DirectShow codecs wrapper * Copyright <2006, 2007, 2008, 2009, 2010> Fluendo * Copyright <2006, 2007, 2008> Pioneers of the Inevitable * Copyright <2007,2008> Sebastien Moutte * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * * Alternatively, the contents of this file may be used under the * GNU Lesser General Public License Version 2.1 (the "LGPL"), in * which case the following provisions apply instead of the ones * mentioned above: * * 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 #include #include #include "gstdshowvideodec.h" GST_DEBUG_CATEGORY_STATIC (dshowvideodec_debug); #define GST_CAT_DEFAULT dshowvideodec_debug GST_BOILERPLATE (GstDshowVideoDec, gst_dshowvideodec, GstElement, GST_TYPE_ELEMENT); static void gst_dshowvideodec_dispose (GObject * object); static GstStateChangeReturn gst_dshowvideodec_change_state (GstElement * element, GstStateChange transition); /* sink pad overwrites */ static gboolean gst_dshowvideodec_sink_setcaps (GstPad * pad, GstCaps * caps); static gboolean gst_dshowvideodec_sink_event (GstPad * pad, GstEvent * event); static GstFlowReturn gst_dshowvideodec_chain (GstPad * pad, GstBuffer * buffer); /* src pad overwrites */ static GstCaps *gst_dshowvideodec_src_getcaps (GstPad * pad); static gboolean gst_dshowvideodec_src_setcaps (GstPad * pad, GstCaps * caps); /* utils */ static gboolean gst_dshowvideodec_create_graph_and_filters (GstDshowVideoDec * vdec); static gboolean gst_dshowvideodec_destroy_graph_and_filters (GstDshowVideoDec * vdec); static gboolean gst_dshowvideodec_flush (GstDshowVideoDec * adec); static gboolean gst_dshowvideodec_get_filter_output_format (GstDshowVideoDec * vdec, const GUID subtype, VIDEOINFOHEADER ** format, guint * size); #define GUID_MEDIATYPE_VIDEO {0x73646976, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_WMVV1 {0x31564d57, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_WMVV2 {0x32564d57, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_WMVV3 {0x33564d57, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_WMVP {0x50564d57, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_WMVA {0x41564d57, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_CVID {0x64697663, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_MP4S {0x5334504d, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_MP42 {0x3234504d, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_MP43 {0x3334504d, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_M4S2 {0x3253344d, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_XVID {0x44495658, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_DX50 {0x30355844, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_DIVX {0x58564944, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_DIV3 {0x33564944, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_MPG4 {0x3447504d, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_MPEG1Payload {0xe436eb81, 0x524f, 0x11ce, {0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}} /* output types */ #define GUID_MEDIASUBTYPE_YUY2 {0x32595559, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_YV12 {0x32315659, 0x0000, 0x0010, { 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }} #define GUID_MEDIASUBTYPE_RGB32 {0xe436eb7e, 0x524f, 0x11ce, { 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70 }} #define GUID_MEDIASUBTYPE_RGB565 {0xe436eb7b, 0x524f, 0x11ce, { 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70 }} /* WMV always uses the WMV DMO */ static PreferredFilter preferred_wmv_filters[] = { {&CLSID_CWMVDecMediaObject, &DMOCATEGORY_VIDEO_DECODER}, {0} }; static const GUID CLSID_AVI_DECOMPRESSOR = {0xCF49D4E0, 0x1115, 0x11CE, {0xB0, 0x3A, 0x00, 0x20, 0xAF, 0x0B, 0xA7, 0x70}}; static PreferredFilter preferred_cinepack_filters[] = { {&CLSID_AVI_DECOMPRESSOR}, {0} }; /* Various MPEG-4 video variants */ // MPG4, mpg4, MP42, mp42 static PreferredFilter preferred_mpeg4_filters[] = { {&CLSID_CMpeg4DecMediaObject, &DMOCATEGORY_VIDEO_DECODER}, {0}}; // MP4S, mp4s, M4S2, m4s2 static PreferredFilter preferred_mp4s_filters[] = { {&CLSID_CMpeg4sDecMediaObject, &DMOCATEGORY_VIDEO_DECODER}, {0}}; // MP43, mp43 static PreferredFilter preferred_mp43_filters[] = { {&CLSID_CMpeg43DecMediaObject, &DMOCATEGORY_VIDEO_DECODER}, {0}}; static const GUID CLSID_MPEG_VIDEO_DECODER = {0xFEB50740, 0x7BEF, 0x11CE, {0x9B, 0xD9, 0x00, 0x00, 0xE2, 0x02, 0x59, 0x9C}}; static PreferredFilter preferred_mpeg1_filters[] = { {&CLSID_MPEG_VIDEO_DECODER}, {0} }; /* video codecs array */ static const VideoCodecEntry video_dec_codecs[] = { {"dshowvdec_wmv1", "Windows Media Video 7", GST_MAKE_FOURCC ('W', 'M', 'V', '1'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_WMVV1, "video/x-wmv, wmvversion = (int) 1", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2", preferred_wmv_filters}, {"dshowvdec_wmv2", "Windows Media Video 8", GST_MAKE_FOURCC ('W', 'M', 'V', '2'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_WMVV2, "video/x-wmv, wmvversion = (int) 2", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2", preferred_wmv_filters}, {"dshowvdec_wmv3", "Windows Media Video 9", GST_MAKE_FOURCC ('W', 'M', 'V', '3'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_WMVV3, "video/x-wmv, wmvversion = (int) 3, " "format = (fourcc) WMV3", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2", preferred_wmv_filters}, {"dshowvdec_wmvp", "Windows Media Video 9 Image", GST_MAKE_FOURCC ('W', 'M', 'V', 'P'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_WMVP, "video/x-wmv, wmvversion = (int) 3, " "format = (fourcc) WMVP", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2", preferred_wmv_filters}, {"dshowvdec_wmva", "Windows Media Video 9 Advanced", GST_MAKE_FOURCC ('W', 'M', 'V', 'A'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_WMVA, "video/x-wmv, wmvversion = (int) 3, " "format = (fourcc) WMVA", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2", preferred_wmv_filters}, {"dshowvdec_cinepak", "Cinepack", 0x64697663, GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_CVID, "video/x-cinepak", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_RGB32, "video/x-raw-rgb, bpp=(int)32, depth=(int)24, " "endianness=(int)4321, red_mask=(int)65280, " "green_mask=(int)16711680, blue_mask=(int)-16777216", preferred_cinepack_filters}, {"dshowvdec_msmpeg41", "Microsoft ISO MPEG-4 version 1", GST_MAKE_FOURCC ('M', 'P', '4', 'S'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_MP4S, "video/x-msmpeg, msmpegversion=(int)41", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2", preferred_mp4s_filters}, {"dshowvdec_msmpeg42", "Microsoft ISO MPEG-4 version 2", GST_MAKE_FOURCC ('M', 'P', '4', '2'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_MP42, "video/x-msmpeg, msmpegversion=(int)42", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2", preferred_mpeg4_filters}, {"dshowvdec_msmpeg43", "Microsoft ISO MPEG-4 version 3", GST_MAKE_FOURCC ('M', 'P', '4', '3'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_MP43, "video/x-msmpeg, msmpegversion=(int)43", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2", preferred_mp43_filters}, {"dshowvdec_msmpeg4", "Microsoft ISO MPEG-4 version 1.1", GST_MAKE_FOURCC ('M', '4', 'S', '2'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_M4S2, "video/x-msmpeg, msmpegversion=(int)4", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2", preferred_mp4s_filters}, {"dshowvdec_mpeg1", "MPEG-1 Video", GST_MAKE_FOURCC ('M', 'P', 'E', 'G'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_MPEG1Payload, "video/mpeg, mpegversion= (int) 1, " "parsed= (boolean) true, " "systemstream= (boolean) false", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2", preferred_mpeg1_filters}, {"dshowvdec_mpeg4", "MPEG-4 Video", GST_MAKE_FOURCC ('M', 'P', 'G', '4'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_MPG4, "video/mpeg, msmpegversion=(int)4", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2", preferred_mpeg4_filters}, /* The rest of these have no preferred filter; windows doesn't come * with anything appropriate */ {"dshowvdec_xvid", "XVID Video", GST_MAKE_FOURCC ('X', 'V', 'I', 'D'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_XVID, "video/x-xvid", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2"}, {"dshowvdec_divx5", "DIVX 5.0 Video", GST_MAKE_FOURCC ('D', 'X', '5', '0'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_DX50, "video/x-divx, divxversion=(int)5", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2"}, {"dshowvdec_divx4", "DIVX 4.0 Video", GST_MAKE_FOURCC ('D', 'I', 'V', 'X'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_DIVX, "video/x-divx, divxversion=(int)4", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2"}, {"dshowvdec_divx3", "DIVX 3.0 Video", GST_MAKE_FOURCC ('D', 'I', 'V', '3'), GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_DIV3, "video/x-divx, divxversion=(int)3", GUID_MEDIATYPE_VIDEO, GUID_MEDIASUBTYPE_YUY2, "video/x-raw-yuv, format=(fourcc)YUY2"} }; HRESULT VideoFakeSink::DoRenderSample(IMediaSample *pMediaSample) { gboolean in_seg = FALSE; gint64 clip_start = 0, clip_stop = 0; GstDshowVideoDecClass *klass = (GstDshowVideoDecClass *) G_OBJECT_GET_CLASS (mDec); GstBuffer *buf = NULL; GstClockTime start, stop; if(pMediaSample) { BYTE *pBuffer = NULL; LONGLONG lStart = 0, lStop = 0; long size = pMediaSample->GetActualDataLength(); pMediaSample->GetPointer(&pBuffer); pMediaSample->GetTime(&lStart, &lStop); start = lStart * 100; stop = lStop * 100; /* check if this buffer is in our current segment */ in_seg = gst_segment_clip (mDec->segment, GST_FORMAT_TIME, start, stop, &clip_start, &clip_stop); /* if the buffer is out of segment do not push it downstream */ if (!in_seg) { GST_DEBUG_OBJECT (mDec, "buffer is out of segment, start %" GST_TIME_FORMAT " stop %" GST_TIME_FORMAT, GST_TIME_ARGS (start), GST_TIME_ARGS (stop)); goto done; } /* buffer is in our segment, allocate a new out buffer and clip its * timestamps */ mDec->last_ret = gst_pad_alloc_buffer (mDec->srcpad, GST_BUFFER_OFFSET_NONE, size, GST_PAD_CAPS (mDec->srcpad), &buf); if (!buf) { GST_WARNING_OBJECT (mDec, "cannot allocate a new GstBuffer"); goto done; } /* set buffer properties */ GST_BUFFER_TIMESTAMP (buf) = clip_start; GST_BUFFER_DURATION (buf) = clip_stop - clip_start; if (strstr (klass->entry->srccaps, "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; guint stride = mDec->width * 4; for (; line < mDec->height; line++) { memcpy (GST_BUFFER_DATA (buf) + (line * stride), pBuffer + (size - ((line + 1) * (stride))), stride); } } else { memcpy (GST_BUFFER_DATA (buf), pBuffer, MIN ((unsigned int)size, GST_BUFFER_SIZE (buf))); } GST_LOG_OBJECT (mDec, "push_buffer (size %d)=> pts %" GST_TIME_FORMAT " stop %" GST_TIME_FORMAT " duration %" GST_TIME_FORMAT, size, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf) + GST_BUFFER_DURATION (buf)), GST_TIME_ARGS (GST_BUFFER_DURATION (buf))); /* push the buffer downstream */ mDec->last_ret = gst_pad_push (mDec->srcpad, buf); } done: return S_OK; } HRESULT VideoFakeSink::CheckMediaType(const CMediaType *pmt) { if (pmt != NULL) { if (*pmt == m_MediaType) return S_OK; } return S_FALSE; } static void gst_dshowvideodec_base_init (gpointer klass) { GstDshowVideoDecClass *videodec_class = (GstDshowVideoDecClass *) klass; GstPadTemplate *src, *sink; GstCaps *srccaps, *sinkcaps; GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GstElementDetails details; const VideoCodecEntry *tmp; gpointer qdata; qdata = g_type_get_qdata (G_OBJECT_CLASS_TYPE (klass), DSHOW_CODEC_QDATA); /* element details */ tmp = videodec_class->entry = (VideoCodecEntry *) qdata; details.longname = g_strdup_printf ("DirectShow %s Decoder Wrapper", tmp->element_longname); details.klass = g_strdup ("Codec/Decoder/Video"); details.description = g_strdup_printf ("DirectShow %s Decoder Wrapper", tmp->element_longname); details.author = "Sebastien Moutte "; gst_element_class_set_details (element_class, &details); g_free (details.longname); g_free (details.klass); g_free (details.description); sinkcaps = gst_caps_from_string (tmp->sinkcaps); gst_caps_set_simple (sinkcaps, "width", GST_TYPE_INT_RANGE, 16, 4096, "height", GST_TYPE_INT_RANGE, 16, 4096, "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL); srccaps = gst_caps_from_string (tmp->srccaps); sink = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, sinkcaps); src = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, srccaps); gst_element_class_add_pad_template (element_class, src); gst_element_class_add_pad_template (element_class, sink); gst_object_unref (src); gst_object_unref (sink); } static void gst_dshowvideodec_class_init (GstDshowVideoDecClass * klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass); gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_dshowvideodec_dispose); gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_dshowvideodec_change_state); parent_class = (GstElementClass *) g_type_class_peek_parent (klass); } static void gst_dshowvideodec_com_thread (GstDshowVideoDec * vdec) { HRESULT res; g_mutex_lock (vdec->com_init_lock); /* Initialize COM with a MTA for this process. This thread will * be the first one to enter the apartement and the last one to leave * it, unitializing COM properly */ res = CoInitializeEx (0, COINIT_MULTITHREADED); if (res == S_FALSE) GST_WARNING_OBJECT (vdec, "COM has been already initialized in the same process"); else if (res == RPC_E_CHANGED_MODE) GST_WARNING_OBJECT (vdec, "The concurrency model of COM has changed."); else GST_INFO_OBJECT (vdec, "COM intialized succesfully"); vdec->comInitialized = TRUE; /* Signal other threads waiting on this condition that COM was initialized */ g_cond_signal (vdec->com_initialized); g_mutex_unlock (vdec->com_init_lock); /* Wait until the unitialize condition is met to leave the COM apartement */ g_mutex_lock (vdec->com_deinit_lock); g_cond_wait (vdec->com_uninitialize, vdec->com_deinit_lock); CoUninitialize (); GST_INFO_OBJECT (vdec, "COM unintialized succesfully"); vdec->comInitialized = FALSE; g_cond_signal (vdec->com_uninitialized); g_mutex_unlock (vdec->com_deinit_lock); } static void gst_dshowvideodec_init (GstDshowVideoDec * vdec, GstDshowVideoDecClass * vdec_class) { GstElementClass *element_class = GST_ELEMENT_GET_CLASS (vdec); /* setup pads */ vdec->sinkpad = gst_pad_new_from_template (gst_element_class_get_pad_template (element_class, "sink"), "sink"); gst_pad_set_setcaps_function (vdec->sinkpad, gst_dshowvideodec_sink_setcaps); gst_pad_set_event_function (vdec->sinkpad, gst_dshowvideodec_sink_event); gst_pad_set_chain_function (vdec->sinkpad, gst_dshowvideodec_chain); gst_element_add_pad (GST_ELEMENT (vdec), vdec->sinkpad); vdec->srcpad = gst_pad_new_from_template (gst_element_class_get_pad_template (element_class, "src"), "src"); /* needed to implement caps negociation on our src pad */ /* gst_pad_set_getcaps_function (vdec->srcpad, gst_dshowvideodec_src_getcaps); gst_pad_set_setcaps_function (vdec->srcpad, gst_dshowvideodec_src_setcaps);*/ gst_element_add_pad (GST_ELEMENT (vdec), vdec->srcpad); vdec->fakesrc = NULL; vdec->fakesink = NULL; vdec->decfilter = NULL; vdec->last_ret = GST_FLOW_OK; vdec->filtergraph = NULL; vdec->mediafilter = NULL; vdec->srccaps = NULL; vdec->segment = gst_segment_new (); vdec->setup = FALSE; vdec->com_init_lock = g_mutex_new(); vdec->com_deinit_lock = g_mutex_new(); vdec->com_initialized = g_cond_new(); vdec->com_uninitialize = g_cond_new(); vdec->com_uninitialized = g_cond_new(); g_mutex_lock (vdec->com_init_lock); /* create the COM initialization thread */ g_thread_create ((GThreadFunc)gst_dshowvideodec_com_thread, vdec, FALSE, NULL); /* wait until the COM thread signals that COM has been initialized */ g_cond_wait (vdec->com_initialized, vdec->com_init_lock); g_mutex_unlock (vdec->com_init_lock); } static void gst_dshowvideodec_dispose (GObject * object) { GstDshowVideoDec *vdec = (GstDshowVideoDec *) (object); if (vdec->segment) { gst_segment_free (vdec->segment); vdec->segment = NULL; } /* signal the COM thread that it sould uninitialize COM */ if (vdec->comInitialized) { g_mutex_lock (vdec->com_deinit_lock); g_cond_signal (vdec->com_uninitialize); g_cond_wait (vdec->com_uninitialized, vdec->com_deinit_lock); g_mutex_unlock (vdec->com_deinit_lock); } g_mutex_free (vdec->com_init_lock); g_mutex_free (vdec->com_deinit_lock); g_cond_free (vdec->com_initialized); g_cond_free (vdec->com_uninitialize); g_cond_free (vdec->com_uninitialized); G_OBJECT_CLASS (parent_class)->dispose (object); } static GstStateChangeReturn gst_dshowvideodec_change_state (GstElement * element, GstStateChange transition) { GstDshowVideoDec *vdec = (GstDshowVideoDec *) (element); switch (transition) { case GST_STATE_CHANGE_NULL_TO_READY: if (!gst_dshowvideodec_create_graph_and_filters (vdec)) return GST_STATE_CHANGE_FAILURE; break; case GST_STATE_CHANGE_READY_TO_PAUSED: break; case GST_STATE_CHANGE_PAUSED_TO_PLAYING: break; case GST_STATE_CHANGE_PLAYING_TO_PAUSED: break; case GST_STATE_CHANGE_PAUSED_TO_READY: break; case GST_STATE_CHANGE_READY_TO_NULL: if (!gst_dshowvideodec_destroy_graph_and_filters (vdec)) return GST_STATE_CHANGE_FAILURE; break; default: break; } return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); } static gboolean gst_dshowvideodec_sink_setcaps (GstPad * pad, GstCaps * caps) { gboolean ret = FALSE; HRESULT hres; GstStructure *s = gst_caps_get_structure (caps, 0); GstDshowVideoDec *vdec = (GstDshowVideoDec *) gst_pad_get_parent (pad); GstDshowVideoDecClass *klass = (GstDshowVideoDecClass *) G_OBJECT_GET_CLASS (vdec); GstBuffer *extradata = NULL; const GValue *v = NULL; guint size = 0; GstCaps *caps_out; AM_MEDIA_TYPE output_mediatype, input_mediatype; VIDEOINFOHEADER *input_vheader = NULL, *output_vheader = NULL; CComPtr output_pin; CComPtr input_pin; IBaseFilter *srcfilter = NULL; IBaseFilter *sinkfilter = NULL; const GValue *fps, *par; /* read data */ if (!gst_structure_get_int (s, "width", &vdec->width) || !gst_structure_get_int (s, "height", &vdec->height)) { GST_ELEMENT_ERROR (vdec, CORE, NEGOTIATION, ("error getting video width or height from caps"), (NULL)); goto end; } fps = gst_structure_get_value (s, "framerate"); if (fps) { vdec->fps_n = gst_value_get_fraction_numerator (fps); vdec->fps_d = gst_value_get_fraction_denominator (fps); } else { /* Invent a sane default framerate; the timestamps matter * more anyway. */ vdec->fps_n = 25; vdec->fps_d = 1; } par = gst_structure_get_value (s, "pixel-aspect-ratio"); if (par) { vdec->par_n = gst_value_get_fraction_numerator (par); vdec->par_d = gst_value_get_fraction_denominator (par); } else { vdec->par_n = vdec->par_d = 1; } if ((v = gst_structure_get_value (s, "codec_data"))) extradata = gst_value_get_buffer (v); /* define the input type format */ memset (&input_mediatype, 0, sizeof (AM_MEDIA_TYPE)); input_mediatype.majortype = klass->entry->input_majortype; input_mediatype.subtype = klass->entry->input_subtype; input_mediatype.bFixedSizeSamples = FALSE; input_mediatype.bTemporalCompression = TRUE; if (strstr (klass->entry->sinkcaps, "video/mpeg, mpegversion= (int) 1")) { size = sizeof (MPEG1VIDEOINFO) + (extradata ? GST_BUFFER_SIZE (extradata) - 1 : 0); input_vheader = (VIDEOINFOHEADER *)g_malloc0 (size); input_vheader->bmiHeader.biSize = sizeof (BITMAPINFOHEADER); if (extradata) { MPEG1VIDEOINFO *mpeg_info = (MPEG1VIDEOINFO *) input_vheader; memcpy (mpeg_info->bSequenceHeader, GST_BUFFER_DATA (extradata), GST_BUFFER_SIZE (extradata)); mpeg_info->cbSequenceHeader = GST_BUFFER_SIZE (extradata); } input_mediatype.formattype = FORMAT_MPEGVideo; } else { size = sizeof (VIDEOINFOHEADER) + (extradata ? GST_BUFFER_SIZE (extradata) : 0); input_vheader = (VIDEOINFOHEADER *)g_malloc0 (size); input_vheader->bmiHeader.biSize = sizeof (BITMAPINFOHEADER); if (extradata) { /* Codec data is appended after our header */ memcpy (((guchar *) input_vheader) + sizeof (VIDEOINFOHEADER), GST_BUFFER_DATA (extradata), GST_BUFFER_SIZE (extradata)); input_vheader->bmiHeader.biSize += GST_BUFFER_SIZE (extradata); } input_mediatype.formattype = FORMAT_VideoInfo; } input_vheader->rcSource.top = input_vheader->rcSource.left = 0; input_vheader->rcSource.right = vdec->width; input_vheader->rcSource.bottom = vdec->height; input_vheader->rcTarget = input_vheader->rcSource; input_vheader->bmiHeader.biWidth = vdec->width; input_vheader->bmiHeader.biHeight = vdec->height; input_vheader->bmiHeader.biPlanes = 1; input_vheader->bmiHeader.biBitCount = 16; input_vheader->bmiHeader.biCompression = klass->entry->format; input_vheader->bmiHeader.biSizeImage = (vdec->width * vdec->height) * (input_vheader->bmiHeader.biBitCount / 8); input_mediatype.cbFormat = size; input_mediatype.pbFormat = (BYTE *) input_vheader; input_mediatype.lSampleSize = input_vheader->bmiHeader.biSizeImage; vdec->fakesrc->GetOutputPin()->SetMediaType(&input_mediatype); /* set the sample size for fakesrc filter to the output buffer size */ vdec->fakesrc->GetOutputPin()->SetSampleSize(input_mediatype.lSampleSize); /* connect our fake src to decoder */ hres = vdec->fakesrc->QueryInterface(IID_IBaseFilter, (void **) &srcfilter); if (FAILED (hres)) { GST_ELEMENT_ERROR (vdec, CORE, NEGOTIATION, ("Can't QT fakesrc to IBaseFilter: %x", hres), (NULL)); goto end; } output_pin = gst_dshow_get_pin_from_filter (srcfilter, PINDIR_OUTPUT); if (!output_pin) { GST_ELEMENT_ERROR (vdec, CORE, NEGOTIATION, ("Can't get output pin from our directshow fakesrc filter"), (NULL)); goto end; } input_pin = gst_dshow_get_pin_from_filter (vdec->decfilter, PINDIR_INPUT); if (!input_pin) { GST_ELEMENT_ERROR (vdec, CORE, NEGOTIATION, ("Can't get input pin from decoder filter"), (NULL)); goto end; } hres = vdec->filtergraph->ConnectDirect (output_pin, input_pin, NULL); if (hres != S_OK) { GST_ELEMENT_ERROR (vdec, CORE, NEGOTIATION, ("Can't connect fakesrc with decoder (error=%x)", hres), (NULL)); goto end; } /* get decoder output video format */ if (!gst_dshowvideodec_get_filter_output_format (vdec, klass->entry->output_subtype, &output_vheader, &size)) { GST_ELEMENT_ERROR (vdec, CORE, NEGOTIATION, ("Can't get decoder output video format"), (NULL)); goto end; } memset (&output_mediatype, 0, sizeof (AM_MEDIA_TYPE)); output_mediatype.majortype = klass->entry->output_majortype; output_mediatype.subtype = klass->entry->output_subtype; output_mediatype.bFixedSizeSamples = TRUE; output_mediatype.bTemporalCompression = FALSE; output_mediatype.lSampleSize = output_vheader->bmiHeader.biSizeImage; output_mediatype.formattype = FORMAT_VideoInfo; output_mediatype.cbFormat = size; output_mediatype.pbFormat = (BYTE *) output_vheader; vdec->fakesink->SetMediaType (&output_mediatype); /* connect decoder to our fake sink */ output_pin = gst_dshow_get_pin_from_filter (vdec->decfilter, PINDIR_OUTPUT); if (!output_pin) { GST_ELEMENT_ERROR (vdec, CORE, NEGOTIATION, ("Can't get output pin from our decoder filter"), (NULL)); goto end; } hres = vdec->fakesink->QueryInterface(IID_IBaseFilter, (void **) &sinkfilter); if (FAILED (hres)) { GST_ELEMENT_ERROR (vdec, CORE, NEGOTIATION, ("Can't QT fakesink to IBaseFilter: %x", hres), (NULL)); goto end; } input_pin = gst_dshow_get_pin_from_filter (sinkfilter, PINDIR_INPUT); if (!input_pin) { GST_ELEMENT_ERROR (vdec, CORE, NEGOTIATION, ("Can't get input pin from our directshow fakesink filter"), (NULL)); goto end; } hres = vdec->filtergraph->ConnectDirect(output_pin, input_pin, &output_mediatype); if (hres != S_OK) { GST_ELEMENT_ERROR (vdec, CORE, NEGOTIATION, ("Can't connect decoder with fakesink (error=%x)", hres), (NULL)); goto end; } /* negotiate output */ caps_out = gst_caps_from_string (klass->entry->srccaps); gst_caps_set_simple (caps_out, "width", G_TYPE_INT, vdec->width, "height", G_TYPE_INT, vdec->height, NULL); if (vdec->fps_n && vdec->fps_d) { gst_caps_set_simple (caps_out, "framerate", GST_TYPE_FRACTION, vdec->fps_n, vdec->fps_d, NULL); } gst_caps_set_simple (caps_out, "pixel-aspect-ratio", GST_TYPE_FRACTION, vdec->par_n, vdec->par_d, NULL); if (!gst_pad_set_caps (vdec->srcpad, caps_out)) { gst_caps_unref (caps_out); GST_ELEMENT_ERROR (vdec, CORE, NEGOTIATION, ("Failed to negotiate output"), (NULL)); goto end; } gst_caps_unref (caps_out); hres = vdec->mediafilter->Run (-1); if (hres != S_OK) { GST_ELEMENT_ERROR (vdec, CORE, NEGOTIATION, ("Can't run the directshow graph (error=%d)", hres), (NULL)); goto end; } ret = TRUE; end: gst_object_unref (vdec); if (input_vheader) g_free (input_vheader); if (srcfilter) srcfilter->Release(); if (sinkfilter) sinkfilter->Release(); return ret; } static gboolean gst_dshowvideodec_sink_event (GstPad * pad, GstEvent * event) { gboolean ret = TRUE; GstDshowVideoDec *vdec = (GstDshowVideoDec *) gst_pad_get_parent (pad); switch (GST_EVENT_TYPE (event)) { case GST_EVENT_FLUSH_STOP: gst_dshowvideodec_flush (vdec); ret = gst_pad_event_default (pad, event); break; case GST_EVENT_NEWSEGMENT: { GstFormat format; gdouble rate; gint64 start, stop, time; gboolean update; gst_event_parse_new_segment (event, &update, &rate, &format, &start, &stop, &time); /* save the new segment in our local current segment */ gst_segment_set_newsegment (vdec->segment, update, rate, format, start, stop, time); GST_CAT_DEBUG_OBJECT (dshowvideodec_debug, vdec, "new segment received => start=%" GST_TIME_FORMAT " stop=%" GST_TIME_FORMAT, GST_TIME_ARGS (vdec->segment->start), GST_TIME_ARGS (vdec->segment->stop)); if (update) { GST_CAT_DEBUG_OBJECT (dshowvideodec_debug, vdec, "closing current segment flushing.."); gst_dshowvideodec_flush (vdec); } ret = gst_pad_event_default (pad, event); break; } default: ret = gst_pad_event_default (pad, event); break; } gst_object_unref (vdec); return ret; } static GstFlowReturn gst_dshowvideodec_chain (GstPad * pad, GstBuffer * buffer) { GstDshowVideoDec *vdec = (GstDshowVideoDec *) gst_pad_get_parent (pad); bool discont = FALSE; GstClockTime stop; if (!vdec->setup) { /* we are not setup */ GST_WARNING_OBJECT (vdec, "Decoder not set up, failing"); vdec->last_ret = GST_FLOW_WRONG_STATE; goto beach; } if (vdec->last_ret < GST_FLOW_UNEXPECTED) { GST_DEBUG_OBJECT (vdec, "last decoding iteration generated a fatal error " "%s", gst_flow_get_name (vdec->last_ret)); goto beach; } /* check if duration is valid and use duration only when it's valid /* because dshow is not decoding frames having stop smaller than start */ if (GST_BUFFER_DURATION_IS_VALID (buffer)) { stop = GST_BUFFER_TIMESTAMP (buffer) + GST_BUFFER_DURATION (buffer); } else { stop = GST_BUFFER_TIMESTAMP (buffer); } GST_CAT_LOG_OBJECT (dshowvideodec_debug, vdec, "chain (size %d)=> pts %" GST_TIME_FORMAT " stop %" GST_TIME_FORMAT, GST_BUFFER_SIZE (buffer), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)), GST_TIME_ARGS (stop)); /* if the incoming buffer has discont flag set => flush decoder data */ if (buffer && GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT)) { GST_CAT_DEBUG_OBJECT (dshowvideodec_debug, vdec, "this buffer has a DISCONT flag (%" GST_TIME_FORMAT "), flushing", GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer))); gst_dshowvideodec_flush (vdec); discont = TRUE; } /* push the buffer to the directshow decoder */ vdec->fakesrc->GetOutputPin()->PushBuffer( GST_BUFFER_DATA (buffer), GST_BUFFER_TIMESTAMP (buffer), stop, GST_BUFFER_SIZE (buffer), discont); beach: gst_buffer_unref (buffer); gst_object_unref (vdec); return vdec->last_ret; } static GstCaps * gst_dshowvideodec_src_getcaps (GstPad * pad) { GstDshowVideoDec *vdec = (GstDshowVideoDec *) gst_pad_get_parent (pad); GstCaps *caps = NULL; if (!vdec->srccaps) vdec->srccaps = gst_caps_new_empty (); if (vdec->decfilter) { CComPtr output_pin; CComPtr enum_mediatypes; HRESULT hres; ULONG fetched; output_pin = gst_dshow_get_pin_from_filter (vdec->decfilter, PINDIR_OUTPUT); if (!output_pin) { GST_ELEMENT_ERROR (vdec, STREAM, FAILED, ("failed getting ouput pin from the decoder"), (NULL)); goto beach; } hres = output_pin->EnumMediaTypes (&enum_mediatypes); if (hres == S_OK && enum_mediatypes) { AM_MEDIA_TYPE *mediatype = NULL; enum_mediatypes->Reset(); while (hres = enum_mediatypes->Next(1, &mediatype, &fetched), hres == S_OK) { VIDEOINFOHEADER *video_info; GstCaps *mediacaps = NULL; /* RGB24 */ if (IsEqualGUID (mediatype->subtype, MEDIASUBTYPE_RGB24) && IsEqualGUID (mediatype->formattype, FORMAT_VideoInfo)) { video_info = (VIDEOINFOHEADER *) 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) { vdec->mediatypes = g_list_append (vdec->mediatypes, mediatype); gst_caps_append (vdec->srccaps, mediacaps); } else { DeleteMediaType (mediatype); } } else { DeleteMediaType (mediatype); } } } } if (vdec->srccaps) caps = gst_caps_ref (vdec->srccaps); beach: gst_object_unref (vdec); return caps; } static gboolean gst_dshowvideodec_src_setcaps (GstPad * pad, GstCaps * caps) { gboolean ret = FALSE; return ret; } static gboolean gst_dshowvideodec_flush (GstDshowVideoDec * vdec) { if (!vdec->fakesrc) return FALSE; /* flush dshow decoder and reset timestamp */ vdec->fakesrc->GetOutputPin()->Flush(); /* Reset the flow return state tracker */ vdec->last_ret = GST_FLOW_OK; return TRUE; } static gboolean gst_dshowvideodec_get_filter_output_format (GstDshowVideoDec * vdec, const GUID subtype, VIDEOINFOHEADER ** format, guint * size) { CComPtr output_pin; CComPtr enum_mediatypes; HRESULT hres; ULONG fetched; BOOL ret = FALSE; if (!vdec->decfilter) return FALSE; output_pin = gst_dshow_get_pin_from_filter (vdec->decfilter, PINDIR_OUTPUT); if (!output_pin) { GST_ELEMENT_ERROR (vdec, CORE, NEGOTIATION, ("failed getting ouput pin from the decoder"), (NULL)); return FALSE; } hres = output_pin->EnumMediaTypes (&enum_mediatypes); if (hres == S_OK && enum_mediatypes) { AM_MEDIA_TYPE *mediatype = NULL; enum_mediatypes->Reset(); while (hres = enum_mediatypes->Next(1, &mediatype, &fetched), hres == S_OK) { if (IsEqualGUID (mediatype->subtype, subtype) && IsEqualGUID (mediatype->formattype, FORMAT_VideoInfo)) { *size = mediatype->cbFormat; *format = (VIDEOINFOHEADER *)g_malloc0 (*size); memcpy (*format, mediatype->pbFormat, *size); ret = TRUE; } DeleteMediaType (mediatype); if (ret) break; } } return ret; } static gboolean gst_dshowvideodec_create_graph_and_filters (GstDshowVideoDec * vdec) { HRESULT hres = S_FALSE; GstDshowVideoDecClass *klass = (GstDshowVideoDecClass *) G_OBJECT_GET_CLASS (vdec); IBaseFilter *srcfilter = NULL; IBaseFilter *sinkfilter = NULL; gboolean ret = FALSE; /* create the filter graph manager object */ hres = CoCreateInstance (CLSID_FilterGraph, NULL, CLSCTX_INPROC, IID_IFilterGraph, (LPVOID *) & vdec->filtergraph); if (hres != S_OK || !vdec->filtergraph) { GST_ELEMENT_ERROR (vdec, STREAM, FAILED, ("Can't create an instance " "of the directshow graph manager (error=%d)", hres), (NULL)); goto error; } hres = vdec->filtergraph->QueryInterface(IID_IMediaFilter, (void **) &vdec->mediafilter); if (hres != S_OK || !vdec->mediafilter) { GST_ELEMENT_ERROR (vdec, STREAM, FAILED, ("Can't get IMediacontrol interface " "from the graph manager (error=%d)", hres), (NULL)); goto error; } /* create fake src filter */ vdec->fakesrc = new FakeSrc(); /* Created with a refcount of zero, so increment that */ vdec->fakesrc->AddRef(); hres = vdec->fakesrc->QueryInterface(IID_IBaseFilter, (void **) &srcfilter); if (FAILED (hres)) { GST_WARNING_OBJECT (vdec, "Failed to QI fakesrc to IBaseFilter"); goto error; } /* search a decoder filter and create it */ vdec->decfilter = gst_dshow_find_filter ( klass->entry->input_majortype, klass->entry->input_subtype, klass->entry->output_majortype, klass->entry->output_subtype, klass->entry->preferred_filters); if (vdec->decfilter == NULL) { GST_ELEMENT_ERROR (vdec, STREAM, FAILED, ("Can't create an instance " "of the decoder filter"), (NULL)); goto error; } /* create fake sink filter */ vdec->fakesink = new VideoFakeSink(vdec); /* Created with a refcount of zero, so increment that */ vdec->fakesink->AddRef(); hres = vdec->fakesink->QueryInterface(IID_IBaseFilter, (void **) &sinkfilter); if (FAILED (hres)) { GST_WARNING_OBJECT (vdec, "Failed to QI fakesink to IBaseFilter"); goto error; } /* add filters to the graph */ hres = vdec->filtergraph->AddFilter (srcfilter, L"src"); if (hres != S_OK) { GST_ELEMENT_ERROR (vdec, STREAM, FAILED, ("Can't add fakesrc filter " "to the graph (error=%d)", hres), (NULL)); goto error; } hres = vdec->filtergraph->AddFilter(vdec->decfilter, L"decoder"); if (hres != S_OK) { GST_ELEMENT_ERROR (vdec, STREAM, FAILED, ("Can't add decoder filter " "to the graph (error=%d)", hres), (NULL)); goto error; } hres = vdec->filtergraph->AddFilter(sinkfilter, L"sink"); if (hres != S_OK) { GST_ELEMENT_ERROR (vdec, STREAM, FAILED, ("Can't add fakesink filter " "to the graph (error=%d)", hres), (NULL)); goto error; } vdec->setup = TRUE; ret = TRUE; done: if (srcfilter) srcfilter->Release(); if (sinkfilter) sinkfilter->Release(); return ret; error: if (vdec->fakesrc) { vdec->fakesrc->Release(); vdec->fakesrc = NULL; } if (vdec->decfilter) { vdec->decfilter->Release(); vdec->decfilter = NULL; } if (vdec->fakesink) { vdec->fakesink->Release(); vdec->fakesink = NULL; } if (vdec->mediafilter) { vdec->mediafilter->Release(); vdec->mediafilter = NULL; } if (vdec->filtergraph) { vdec->filtergraph->Release(); vdec->filtergraph = NULL; } goto done; } static gboolean gst_dshowvideodec_destroy_graph_and_filters (GstDshowVideoDec * vdec) { HRESULT hres; if (vdec->mediafilter) { vdec->mediafilter->Stop(); } if (vdec->fakesrc) { if (vdec->filtergraph) { IBaseFilter *filter; hres = vdec->fakesrc->QueryInterface(IID_IBaseFilter, (void **) &filter); if (SUCCEEDED (hres)) { vdec->filtergraph->RemoveFilter(filter); filter->Release(); } } vdec->fakesrc->Release(); vdec->fakesrc = NULL; } if (vdec->decfilter) { if (vdec->filtergraph) vdec->filtergraph->RemoveFilter(vdec->decfilter); vdec->decfilter->Release(); vdec->decfilter = NULL; } if (vdec->fakesink) { if (vdec->filtergraph) { IBaseFilter *filter; hres = vdec->fakesink->QueryInterface(IID_IBaseFilter, (void **) &filter); if (SUCCEEDED (hres)) { vdec->filtergraph->RemoveFilter(filter); filter->Release(); } } vdec->fakesink->Release(); vdec->fakesink = NULL; } if (vdec->mediafilter) { vdec->mediafilter->Release(); vdec->mediafilter = NULL; } if (vdec->filtergraph) { vdec->filtergraph->Release(); vdec->filtergraph = NULL; } vdec->setup = FALSE; return TRUE; } gboolean dshow_vdec_register (GstPlugin * plugin) { GTypeInfo info = { sizeof (GstDshowVideoDecClass), (GBaseInitFunc) gst_dshowvideodec_base_init, NULL, (GClassInitFunc) gst_dshowvideodec_class_init, NULL, NULL, sizeof (GstDshowVideoDec), 0, (GInstanceInitFunc) gst_dshowvideodec_init, }; gint i; HRESULT hr; GST_DEBUG_CATEGORY_INIT (dshowvideodec_debug, "dshowvideodec", 0, "Directshow filter video decoder"); hr = CoInitialize (0); for (i = 0; i < sizeof (video_dec_codecs) / sizeof (VideoCodecEntry); i++) { GType type; CComPtr filter; filter = gst_dshow_find_filter ( video_dec_codecs[i].input_majortype, video_dec_codecs[i].input_subtype, video_dec_codecs[i].output_majortype, video_dec_codecs[i].output_subtype, video_dec_codecs[i].preferred_filters); if (filter != NULL) { GST_DEBUG ("Registering %s", video_dec_codecs[i].element_name); type = g_type_register_static (GST_TYPE_ELEMENT, video_dec_codecs[i].element_name, &info, (GTypeFlags)0); g_type_set_qdata (type, DSHOW_CODEC_QDATA, (gpointer) (video_dec_codecs + i)); if (!gst_element_register (plugin, video_dec_codecs[i].element_name, GST_RANK_PRIMARY, type)) { return FALSE; } GST_DEBUG ("Registered %s", video_dec_codecs[i].element_name); } else { GST_DEBUG ("Element %s not registered " "(the format is not supported by the system)", video_dec_codecs[i].element_name); } } if (SUCCEEDED(hr)) CoUninitialize (); return TRUE; }