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0ff4dc306f
Original commit message from CVS: * sys/winks/gstksvideodevice.c (GST_DEBUG_IS_ENABLED, last_timestamp, gst_ks_video_device_prepare_buffers, gst_ks_video_device_create_pin, gst_ks_video_device_set_state, gst_ks_video_device_request_frame, gst_ks_video_device_read_frame): Guard against capturing old frames by keeping track of the last timestamp and also zero-fill the buffers before each capture. Only assign a master clock if the pin hasn't already got one. Actually free buffers on the way down to avoid a huge memory leak, as this was previously done when changing state to ACQUIRE downwards and we now skip that state on the way down. Add some debug. * sys/winks/gstksvideosrc.c (DEFAULT_DEVICE_PATH, DEFAULT_DEVICE_NAME, DEFAULT_DEVICE_INDEX, KS_WORKER_LOCK, KS_WORKER_UNLOCK, KS_WORKER_WAIT, KS_WORKER_NOTIFY, KS_WORKER_WAIT_FOR_RESULT, KS_WORKER_NOTIFY_RESULT, KS_WORKER_STATE_STARTING, KS_WORKER_STATE_READY, KS_WORKER_STATE_STOPPING, KS_WORKER_STATE_ERROR, KsWorkerState, device_path, device_name, device_index, running, worker_thread, worker_lock, worker_notify_cond, worker_result_cond, worker_state, worker_pending_caps, worker_setcaps_result, worker_pending_run, worker_run_result, gst_ks_video_src_reset, gst_ks_video_src_apply_driver_quirks, gst_ks_video_src_open_device, gst_ks_video_src_close_device, gst_ks_video_src_worker_func, gst_ks_video_src_start_worker, gst_ks_video_src_stop_worker, gst_ks_video_src_change_state, gst_ks_video_src_set_clock, gst_ks_video_src_set_caps, gst_ks_video_src_timestamp_buffer, gst_ks_video_src_create): Remove ENABLE_CLOCK_DEBUG define, it's GST_LEVEL_DEBUG after all. Get rid of PROP_ENSLAVE_KSCLOCK and always slave the ks clock to the GStreamer clock, it doesn't seem to hurt and matches DirectShow's behavior. As an added bonus we usually get PresentationTime set for each frame, so we can expand on this later for smarter latency reporting (by looking at the diff between the timestamp from the driver and the time according to the GStreamer clock). Use an internal worker thread for opening the device, setting caps, changing its state and closing it. This way we're a lot more compatible with drivers that rely on hacks to do video-effects between the low-level NT API and the application. Ick. Start the ks clock and set the pin to KSSTATE_RUN on the first create() so that we'll hopefully get hold of the GStreamer clock from the very beginning. This way there's no chance that the timestamps will make a sudden jump in the beginning of the stream when we're running with a clock. * sys/winks/kshelpers.c (CHECK_OPTIONS_FLAG, ks_options_flags_to_string): Reorder the flags to match the headerfile order, and make the string a bit more compact. * sys/winks/ksvideohelpers.c (ks_video_probe_filter_for_caps): Avoid leaking KSPROPERTY_PIN_DATARANGES.
591 lines
19 KiB
C
591 lines
19 KiB
C
/*
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* Copyright (C) 2007 Haakon Sporsheim <hakon.sporsheim@tandberg.com>
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* 2008 Ole André Vadla Ravnås <ole.andre.ravnas@tandberg.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "ksvideohelpers.h"
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#include <uuids.h>
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#include "kshelpers.h"
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GST_DEBUG_CATEGORY_EXTERN (gst_ks_debug);
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#define GST_CAT_DEFAULT gst_ks_debug
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static const GUID MEDIASUBTYPE_FOURCC =
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{ 0x0 /* FourCC here */ , 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xAA, 0x00,
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0x38, 0x9B, 0x71}
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};
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extern const GUID MEDIASUBTYPE_I420 =
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{ 0x30323449, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B,
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0x71}
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};
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static GstStructure *
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ks_video_format_to_structure (GUID subtype_guid, GUID format_guid)
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{
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GstStructure *structure = NULL;
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if (IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_MJPG) || IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_TVMJ) || /* FIXME: NOT tested */
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IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_WAKE) || /* FIXME: NOT tested */
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IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_CFCC) || /* FIXME: NOT tested */
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IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_IJPG)) { /* FIXME: NOT tested */
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structure = gst_structure_new ("image/jpeg", NULL);
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} else if (IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_RGB555) || /* FIXME: NOT tested */
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IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_RGB565) || /* FIXME: NOT tested */
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IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_RGB24) || IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_RGB32) || /* FIXME: NOT tested */
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IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_ARGB1555) || /* FIXME: NOT tested */
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IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_ARGB32) || /* FIXME: NOT tested */
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IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_ARGB4444)) { /* FIXME: NOT tested */
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guint depth = 0, bpp = 0;
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gint endianness = 0;
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guint32 r_mask = 0, b_mask = 0, g_mask = 0;
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if (IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_RGB555)) {
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bpp = 16;
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depth = 15;
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endianness = G_BIG_ENDIAN;
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r_mask = 0x7c00;
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g_mask = 0x03e0;
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b_mask = 0x001f;
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} else if (IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_RGB565)) {
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bpp = depth = 16;
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endianness = G_BIG_ENDIAN;
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r_mask = 0xf800;
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g_mask = 0x07e0;
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b_mask = 0x001f;
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} else if (IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_RGB24)) {
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bpp = depth = 24;
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endianness = G_BIG_ENDIAN;
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r_mask = 0x0000ff;
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g_mask = 0x00ff00;
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b_mask = 0xff0000;
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} else if (IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_RGB32)) {
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bpp = 32;
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depth = 24;
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endianness = G_BIG_ENDIAN;
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r_mask = 0x000000ff;
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g_mask = 0x0000ff00;
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b_mask = 0x00ff0000;
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/* FIXME: check
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*r_mask = 0xff000000;
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*g_mask = 0x00ff0000;
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*b_mask = 0x0000ff00;
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*/
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} else if (IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_ARGB1555)) {
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bpp = 16;
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depth = 15;
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endianness = G_BIG_ENDIAN;
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r_mask = 0x7c00;
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g_mask = 0x03e0;
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b_mask = 0x001f;
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} else if (IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_ARGB32)) {
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bpp = depth = 32;
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endianness = G_BIG_ENDIAN;
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r_mask = 0x000000ff;
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g_mask = 0x0000ff00;
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b_mask = 0x00ff0000;
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/* FIXME: check
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*r_mask = 0xff000000;
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*g_mask = 0x00ff0000;
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*b_mask = 0x0000ff00;
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*/
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} else if (IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_ARGB4444)) {
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bpp = 16;
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depth = 12;
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endianness = G_BIG_ENDIAN;
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r_mask = 0x0f00;
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g_mask = 0x00f0;
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b_mask = 0x000f;
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//r_mask = 0x000f;
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//g_mask = 0x00f0;
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//b_mask = 0x0f00;
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} else {
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g_assert_not_reached ();
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}
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structure = gst_structure_new ("video/x-raw-rgb",
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"bpp", G_TYPE_INT, bpp,
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"depth", G_TYPE_INT, depth,
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"red_mask", G_TYPE_INT, r_mask,
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"green_mask", G_TYPE_INT, g_mask,
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"blue_mask", G_TYPE_INT, b_mask,
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"endianness", G_TYPE_INT, endianness, NULL);
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} else if (IsEqualGUID (&subtype_guid, &MEDIASUBTYPE_dvsd)) {
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if (IsEqualGUID (&format_guid, &FORMAT_DvInfo)) {
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structure = gst_structure_new ("video/x-dv",
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"systemstream", G_TYPE_BOOLEAN, TRUE, NULL);
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} else if (IsEqualGUID (&format_guid, &FORMAT_VideoInfo)) {
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structure = gst_structure_new ("video/x-dv",
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"systemstream", G_TYPE_BOOLEAN, FALSE,
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"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('d', 'v', 's', 'd'),
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NULL);
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}
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} else if (memcmp (&subtype_guid.Data2, &MEDIASUBTYPE_FOURCC.Data2,
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sizeof (subtype_guid) - sizeof (subtype_guid.Data1)) == 0) {
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guint8 *p = (guint8 *) & subtype_guid.Data1;
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structure = gst_structure_new ("video/x-raw-yuv",
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"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC (p[0], p[1], p[2], p[3]),
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NULL);
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}
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if (!structure) {
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GST_DEBUG ("Unknown DirectShow Video GUID %08x-%04x-%04x-%04x-%08x%04x",
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subtype_guid.Data1, subtype_guid.Data2, subtype_guid.Data3,
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*(WORD *) subtype_guid.Data4, *(DWORD *) & subtype_guid.Data4[2],
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*(WORD *) & subtype_guid.Data4[6]);
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}
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return structure;
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}
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static gboolean
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ks_video_append_video_stream_cfg_fields (GstStructure * structure,
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const KS_VIDEO_STREAM_CONFIG_CAPS * vscc)
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{
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g_return_val_if_fail (structure, FALSE);
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g_return_val_if_fail (vscc, FALSE);
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/* width */
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if (vscc->MinOutputSize.cx == vscc->MaxOutputSize.cx) {
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gst_structure_set (structure,
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"width", G_TYPE_INT, vscc->MaxOutputSize.cx, NULL);
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} else {
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gst_structure_set (structure,
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"width", GST_TYPE_INT_RANGE,
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vscc->MinOutputSize.cx, vscc->MaxOutputSize.cx, NULL);
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}
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/* height */
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if (vscc->MinOutputSize.cy == vscc->MaxOutputSize.cy) {
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gst_structure_set (structure,
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"height", G_TYPE_INT, vscc->MaxOutputSize.cy, NULL);
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} else {
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gst_structure_set (structure,
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"height", GST_TYPE_INT_RANGE,
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vscc->MinOutputSize.cy, vscc->MaxOutputSize.cy, NULL);
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}
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/* framerate */
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if (vscc->MinFrameInterval == vscc->MaxFrameInterval) {
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gst_structure_set (structure,
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"framerate", GST_TYPE_FRACTION,
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(gint) (10000000 / vscc->MaxFrameInterval), 1, NULL);
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} else {
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gst_structure_set (structure,
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"framerate", GST_TYPE_FRACTION_RANGE,
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(gint) (10000000 / vscc->MaxFrameInterval), 1,
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(gint) (10000000 / vscc->MinFrameInterval), 1, NULL);
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}
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return TRUE;
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}
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KsVideoMediaType *
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ks_video_media_type_dup (KsVideoMediaType * media_type)
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{
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KsVideoMediaType *result = g_new (KsVideoMediaType, 1);
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memcpy (result, media_type, sizeof (KsVideoMediaType));
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result->range = g_malloc (media_type->range->FormatSize);
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memcpy ((gpointer) result->range, media_type->range,
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media_type->range->FormatSize);
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result->format = g_malloc (media_type->format_size);
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memcpy (result->format, media_type->format, media_type->format_size);
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result->translated_caps = gst_caps_ref (media_type->translated_caps);
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return result;
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}
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void
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ks_video_media_type_free (KsVideoMediaType * media_type)
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{
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if (media_type == NULL)
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return;
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g_free ((gpointer) media_type->range);
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g_free (media_type->format);
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if (media_type->translated_caps != NULL)
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gst_caps_unref (media_type->translated_caps);
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g_free (media_type);
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}
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static GList *
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ks_video_media_type_list_remove_duplicates (GList * media_types)
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{
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GList *master, *duplicates;
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do {
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GList *entry;
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master = duplicates = NULL;
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/* Find the first set of duplicates and their master */
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for (entry = media_types; entry != NULL && duplicates == NULL;
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entry = entry->next) {
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KsVideoMediaType *mt = entry->data;
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GList *other_entry;
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for (other_entry = media_types; other_entry != NULL;
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other_entry = other_entry->next) {
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KsVideoMediaType *other_mt = other_entry->data;
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if (other_mt == mt)
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continue;
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if (gst_caps_is_equal (mt->translated_caps, other_mt->translated_caps))
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duplicates = g_list_prepend (duplicates, other_mt);
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}
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if (duplicates != NULL)
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master = entry;
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}
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if (duplicates != NULL) {
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KsVideoMediaType *selected_mt = master->data;
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/*
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* Pick a FORMAT_VideoInfo2 if present, if not we just stay with the
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* first entry
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*/
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for (entry = duplicates; entry != NULL; entry = entry->next) {
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KsVideoMediaType *mt = entry->data;
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if (IsEqualGUID (&mt->range->Specifier, &FORMAT_VideoInfo2)) {
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ks_video_media_type_free (selected_mt);
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selected_mt = mt;
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} else {
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ks_video_media_type_free (mt);
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}
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/* Remove the dupe from the main list */
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media_types = g_list_remove (media_types, mt);
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}
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/* Update master node with the selected MediaType */
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master->data = selected_mt;
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g_list_free (duplicates);
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}
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}
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while (master != NULL);
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return media_types;
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}
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GList *
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ks_video_probe_filter_for_caps (HANDLE filter_handle)
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{
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GList *ret = NULL;
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gulong pin_count;
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guint pin_id;
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if (!ks_filter_get_pin_property (filter_handle, 0, KSPROPSETID_Pin,
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KSPROPERTY_PIN_CTYPES, &pin_count, sizeof (pin_count)))
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goto beach;
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GST_DEBUG ("pin_count = %d", pin_count);
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for (pin_id = 0; pin_id < pin_count; pin_id++) {
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KSPIN_COMMUNICATION pin_comm;
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KSPIN_DATAFLOW pin_flow;
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GUID pin_cat;
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if (!ks_filter_get_pin_property (filter_handle, pin_id, KSPROPSETID_Pin,
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KSPROPERTY_PIN_COMMUNICATION, &pin_comm, sizeof (pin_comm)))
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continue;
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if (!ks_filter_get_pin_property (filter_handle, pin_id, KSPROPSETID_Pin,
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KSPROPERTY_PIN_DATAFLOW, &pin_flow, sizeof (pin_flow)))
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continue;
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if (!ks_filter_get_pin_property (filter_handle, pin_id, KSPROPSETID_Pin,
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KSPROPERTY_PIN_CATEGORY, &pin_cat, sizeof (pin_cat)))
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continue;
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GST_DEBUG ("pin[%d]: pin_comm=%d, pin_flow=%d", pin_id, pin_comm, pin_flow);
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if (pin_flow == KSPIN_DATAFLOW_OUT &&
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memcmp (&pin_cat, &PINNAME_CAPTURE, sizeof (GUID)) == 0) {
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KSMULTIPLE_ITEM *items;
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if (ks_filter_get_pin_property_multi (filter_handle, pin_id,
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KSPROPSETID_Pin, KSPROPERTY_PIN_DATARANGES, &items)) {
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KSDATARANGE *range = (KSDATARANGE *) (items + 1);
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guint i;
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for (i = 0; i < items->Count; i++) {
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if (IsEqualGUID (&range->MajorFormat, &KSDATAFORMAT_TYPE_VIDEO)) {
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KsVideoMediaType *entry;
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gpointer src_vscc, src_format;
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GstStructure *media_structure;
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entry = g_new0 (KsVideoMediaType, 1);
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entry->pin_id = pin_id;
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entry->range = g_malloc (range->FormatSize);
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memcpy ((gpointer) entry->range, range, range->FormatSize);
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if (IsEqualGUID (&range->Specifier, &FORMAT_VideoInfo)) {
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KS_DATARANGE_VIDEO *vr = (KS_DATARANGE_VIDEO *) entry->range;
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src_vscc = &vr->ConfigCaps;
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src_format = &vr->VideoInfoHeader;
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entry->format_size = sizeof (vr->VideoInfoHeader);
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entry->sample_size = vr->VideoInfoHeader.bmiHeader.biSizeImage;
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} else if (IsEqualGUID (&range->Specifier, &FORMAT_VideoInfo2)) {
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KS_DATARANGE_VIDEO2 *vr = (KS_DATARANGE_VIDEO2 *) entry->range;
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src_vscc = &vr->ConfigCaps;
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src_format = &vr->VideoInfoHeader;
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entry->format_size = sizeof (vr->VideoInfoHeader);
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entry->sample_size = vr->VideoInfoHeader.bmiHeader.biSizeImage;
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} else if (IsEqualGUID (&range->Specifier, &FORMAT_MPEGVideo)) {
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/* Untested and probably wrong... */
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KS_DATARANGE_MPEG1_VIDEO *vr =
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(KS_DATARANGE_MPEG1_VIDEO *) entry->range;
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src_vscc = &vr->ConfigCaps;
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src_format = &vr->VideoInfoHeader;
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entry->format_size = sizeof (vr->VideoInfoHeader);
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entry->sample_size =
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vr->VideoInfoHeader.hdr.bmiHeader.biSizeImage;
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} else if (IsEqualGUID (&range->Specifier, &FORMAT_MPEG2Video)) {
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/* Untested and probably wrong... */
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KS_DATARANGE_MPEG2_VIDEO *vr =
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(KS_DATARANGE_MPEG2_VIDEO *) entry->range;
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src_vscc = &vr->ConfigCaps;
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src_format = &vr->VideoInfoHeader;
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entry->format_size = sizeof (vr->VideoInfoHeader);
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entry->sample_size =
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vr->VideoInfoHeader.hdr.bmiHeader.biSizeImage;
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} else
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g_assert_not_reached ();
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g_assert (entry->sample_size != 0);
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memcpy ((gpointer) & entry->vscc, src_vscc, sizeof (entry->vscc));
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entry->format = g_malloc (entry->format_size);
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memcpy (entry->format, src_format, entry->format_size);
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media_structure =
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ks_video_format_to_structure (range->SubFormat,
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range->MajorFormat);
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if (media_structure == NULL) {
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g_warning ("ks_video_format_to_structure returned NULL");
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ks_video_media_type_free (entry);
|
|
entry = NULL;
|
|
} else if (ks_video_append_video_stream_cfg_fields (media_structure,
|
|
&entry->vscc)) {
|
|
entry->translated_caps = gst_caps_new_empty ();
|
|
gst_caps_append_structure (entry->translated_caps,
|
|
media_structure);
|
|
} else {
|
|
gst_structure_free (media_structure);
|
|
ks_video_media_type_free (entry);
|
|
entry = NULL;
|
|
}
|
|
|
|
if (entry != NULL)
|
|
ret = g_list_prepend (ret, entry);
|
|
}
|
|
|
|
/* REVISIT: Each KSDATARANGE should start on a 64-bit boundary */
|
|
range = (KSDATARANGE *) (((guchar *) range) + range->FormatSize);
|
|
}
|
|
|
|
g_free (items);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ret != NULL) {
|
|
ret = g_list_reverse (ret);
|
|
ret = ks_video_media_type_list_remove_duplicates (ret);
|
|
}
|
|
|
|
beach:
|
|
return ret;
|
|
}
|
|
|
|
KSPIN_CONNECT *
|
|
ks_video_create_pin_conn_from_media_type (KsVideoMediaType * media_type)
|
|
{
|
|
KSPIN_CONNECT *conn = NULL;
|
|
KSDATAFORMAT *format = NULL;
|
|
guint8 *vih;
|
|
|
|
conn = g_malloc0 (sizeof (KSPIN_CONNECT) + sizeof (KSDATAFORMAT) +
|
|
media_type->format_size);
|
|
|
|
conn->Interface.Set = KSINTERFACESETID_Standard;
|
|
conn->Interface.Id = KSINTERFACE_STANDARD_STREAMING;
|
|
conn->Interface.Flags = 0;
|
|
|
|
conn->Medium.Set = KSMEDIUMSETID_Standard;
|
|
conn->Medium.Id = KSMEDIUM_TYPE_ANYINSTANCE;
|
|
conn->Medium.Flags = 0;
|
|
|
|
conn->PinId = media_type->pin_id;
|
|
conn->PinToHandle = NULL;
|
|
conn->Priority.PriorityClass = KSPRIORITY_NORMAL;
|
|
conn->Priority.PrioritySubClass = 1;
|
|
|
|
format = (KSDATAFORMAT *) (conn + 1);
|
|
memcpy (format, media_type->range, sizeof (KSDATAFORMAT));
|
|
format->FormatSize = sizeof (KSDATAFORMAT) + media_type->format_size;
|
|
|
|
vih = (guint8 *) (format + 1);
|
|
memcpy (vih, media_type->format, media_type->format_size);
|
|
|
|
return conn;
|
|
}
|
|
|
|
gboolean
|
|
ks_video_fixate_media_type (const KSDATARANGE * range,
|
|
guint8 * format, gint width, gint height, gint fps_n, gint fps_d)
|
|
{
|
|
DWORD dwRate = (width * height * fps_n) / fps_d;
|
|
|
|
g_return_val_if_fail (format != NULL, FALSE);
|
|
|
|
if (IsEqualGUID (&range->Specifier, &FORMAT_VideoInfo)) {
|
|
KS_VIDEOINFOHEADER *vih = (KS_VIDEOINFOHEADER *) format;
|
|
|
|
vih->AvgTimePerFrame = gst_util_uint64_scale_int (10000000, fps_d, fps_n);
|
|
vih->dwBitRate = dwRate * vih->bmiHeader.biBitCount;
|
|
|
|
g_assert (vih->bmiHeader.biWidth == width);
|
|
g_assert (vih->bmiHeader.biHeight == height);
|
|
} else if (IsEqualGUID (&range->Specifier, &FORMAT_VideoInfo2)) {
|
|
KS_VIDEOINFOHEADER2 *vih = (KS_VIDEOINFOHEADER2 *) format;
|
|
|
|
vih->AvgTimePerFrame = gst_util_uint64_scale_int (10000000, fps_d, fps_n);
|
|
vih->dwBitRate = dwRate * vih->bmiHeader.biBitCount;
|
|
|
|
g_assert (vih->bmiHeader.biWidth == width);
|
|
g_assert (vih->bmiHeader.biHeight == height);
|
|
} else if (IsEqualGUID (&range->Specifier, &FORMAT_MPEGVideo)) {
|
|
KS_MPEG1VIDEOINFO *vih = (KS_MPEG1VIDEOINFO *) format;
|
|
|
|
vih->hdr.AvgTimePerFrame =
|
|
gst_util_uint64_scale_int (10000000, fps_d, fps_n);
|
|
vih->hdr.dwBitRate = dwRate * vih->hdr.bmiHeader.biBitCount;
|
|
|
|
/* FIXME: set height and width? */
|
|
g_assert (vih->hdr.bmiHeader.biWidth == width);
|
|
g_assert (vih->hdr.bmiHeader.biHeight == height);
|
|
} else if (IsEqualGUID (&range->Specifier, &FORMAT_MPEG2Video)) {
|
|
KS_MPEGVIDEOINFO2 *vih = (KS_MPEGVIDEOINFO2 *) format;
|
|
|
|
vih->hdr.AvgTimePerFrame =
|
|
gst_util_uint64_scale_int (10000000, fps_d, fps_n);
|
|
vih->hdr.dwBitRate = dwRate * vih->hdr.bmiHeader.biBitCount;
|
|
|
|
/* FIXME: set height and width? */
|
|
g_assert (vih->hdr.bmiHeader.biWidth == width);
|
|
g_assert (vih->hdr.bmiHeader.biHeight == height);
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstStructure *
|
|
ks_video_append_var_video_fields (GstStructure * structure)
|
|
{
|
|
if (structure) {
|
|
gst_structure_set (structure,
|
|
"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
|
|
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
|
|
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
|
|
}
|
|
|
|
return structure;
|
|
}
|
|
|
|
GstCaps *
|
|
ks_video_get_all_caps (void)
|
|
{
|
|
static GstCaps *caps = NULL;
|
|
|
|
if (caps == NULL) {
|
|
GstStructure *structure;
|
|
caps = gst_caps_new_empty ();
|
|
|
|
/* from Windows SDK 6.0 uuids.h */
|
|
/* RGB formats */
|
|
structure =
|
|
ks_video_append_var_video_fields (ks_video_format_to_structure
|
|
(MEDIASUBTYPE_RGB555, FORMAT_VideoInfo));
|
|
gst_caps_append_structure (caps, structure);
|
|
|
|
structure =
|
|
ks_video_append_var_video_fields (ks_video_format_to_structure
|
|
(MEDIASUBTYPE_RGB565, FORMAT_VideoInfo));
|
|
gst_caps_append_structure (caps, structure);
|
|
|
|
structure =
|
|
ks_video_append_var_video_fields (ks_video_format_to_structure
|
|
(MEDIASUBTYPE_RGB24, FORMAT_VideoInfo));
|
|
gst_caps_append_structure (caps, structure);
|
|
|
|
structure =
|
|
ks_video_append_var_video_fields (ks_video_format_to_structure
|
|
(MEDIASUBTYPE_RGB32, FORMAT_VideoInfo));
|
|
gst_caps_append_structure (caps, structure);
|
|
|
|
/* YUV formats */
|
|
structure =
|
|
ks_video_append_var_video_fields (gst_structure_new ("video/x-raw-yuv",
|
|
NULL));
|
|
gst_caps_append_structure (caps, structure);
|
|
|
|
/* Other formats */
|
|
structure =
|
|
ks_video_append_var_video_fields (ks_video_format_to_structure
|
|
(MEDIASUBTYPE_MJPG, FORMAT_VideoInfo));
|
|
gst_caps_append_structure (caps, structure);
|
|
|
|
structure =
|
|
ks_video_append_var_video_fields (ks_video_format_to_structure
|
|
(MEDIASUBTYPE_dvsd, FORMAT_VideoInfo));
|
|
gst_caps_append_structure (caps, structure);
|
|
|
|
structure = /* no variable video fields (width, height, framerate) */
|
|
ks_video_format_to_structure (MEDIASUBTYPE_dvsd, FORMAT_DvInfo);
|
|
gst_caps_append_structure (caps, structure);
|
|
}
|
|
|
|
return caps;
|
|
}
|