2 * DirectShow capture interface
3 * Copyright (c) 2015 Roger Pack
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include "dshow_capture.h"
25 GetPhysicalPinName(long pin_type)
29 case PhysConn_Video_Tuner: return "Video Tuner";
30 case PhysConn_Video_Composite: return "Video Composite";
31 case PhysConn_Video_SVideo: return "S-Video";
32 case PhysConn_Video_RGB: return "Video RGB";
33 case PhysConn_Video_YRYBY: return "Video YRYBY";
34 case PhysConn_Video_SerialDigital: return "Video Serial Digital";
35 case PhysConn_Video_ParallelDigital: return "Video Parallel Digital";
36 case PhysConn_Video_SCSI: return "Video SCSI";
37 case PhysConn_Video_AUX: return "Video AUX";
38 case PhysConn_Video_1394: return "Video 1394";
39 case PhysConn_Video_USB: return "Video USB";
40 case PhysConn_Video_VideoDecoder: return "Video Decoder";
41 case PhysConn_Video_VideoEncoder: return "Video Encoder";
43 case PhysConn_Audio_Tuner: return "Audio Tuner";
44 case PhysConn_Audio_Line: return "Audio Line";
45 case PhysConn_Audio_Mic: return "Audio Microphone";
46 case PhysConn_Audio_AESDigital: return "Audio AES/EBU Digital";
47 case PhysConn_Audio_SPDIFDigital: return "Audio S/PDIF";
48 case PhysConn_Audio_SCSI: return "Audio SCSI";
49 case PhysConn_Audio_AUX: return "Audio AUX";
50 case PhysConn_Audio_1394: return "Audio 1394";
51 case PhysConn_Audio_USB: return "Audio USB";
52 case PhysConn_Audio_AudioDecoder: return "Audio Decoder";
53 default: return "Unknown Crossbar Pin Type—Please report!";
58 setup_crossbar_options(IAMCrossbar *cross_bar, enum dshowDeviceType devtype, AVFormatContext *avctx)
60 struct dshow_ctx *ctx = avctx->priv_data;
61 long count_output_pins, count_input_pins;
63 int log_level = ctx->list_options ? AV_LOG_INFO : AV_LOG_DEBUG;
64 int video_input_pin = ctx->crossbar_video_input_pin_number;
65 int audio_input_pin = ctx->crossbar_audio_input_pin_number;
66 const char *device_name = ctx->device_name[devtype];
69 av_log(avctx, log_level, "Crossbar Switching Information for %s:\n", device_name);
70 hr = IAMCrossbar_get_PinCounts(cross_bar, &count_output_pins, &count_input_pins);
72 av_log(avctx, AV_LOG_ERROR, "Unable to get crossbar pin counts\n");
76 for (i = 0; i < count_output_pins; i++)
78 long related_pin, pin_type, route_to_pin;
79 hr = IAMCrossbar_get_CrossbarPinInfo(cross_bar, FALSE, i, &related_pin, &pin_type);
80 if (pin_type == PhysConn_Video_VideoDecoder) {
81 /* assume there is only one "Video (and one Audio) Decoder" output pin, and it's all we care about routing to...for now */
82 if (video_input_pin != -1) {
83 av_log(avctx, log_level, "Routing video input from pin %d\n", video_input_pin);
84 hr = IAMCrossbar_Route(cross_bar, i, video_input_pin);
86 av_log(avctx, AV_LOG_ERROR, "Unable to route video input from pin %d\n", video_input_pin);
90 } else if (pin_type == PhysConn_Audio_AudioDecoder) {
91 if (audio_input_pin != -1) {
92 av_log(avctx, log_level, "Routing audio input from pin %d\n", audio_input_pin);
93 hr = IAMCrossbar_Route(cross_bar, i, audio_input_pin);
95 av_log(avctx, AV_LOG_ERROR, "Unable to route audio input from pin %d\n", audio_input_pin);
100 av_log(avctx, AV_LOG_WARNING, "Unexpected output pin type, please report the type if you want to use this (%s)", GetPhysicalPinName(pin_type));
103 hr = IAMCrossbar_get_IsRoutedTo(cross_bar, i, &route_to_pin);
105 av_log(avctx, AV_LOG_ERROR, "Unable to get crossbar is routed to from pin %d\n", i);
108 av_log(avctx, log_level, " Crossbar Output pin %d: \"%s\" related output pin: %ld ", i, GetPhysicalPinName(pin_type), related_pin);
109 av_log(avctx, log_level, "current input pin: %ld ", route_to_pin);
110 av_log(avctx, log_level, "compatible input pins: ");
112 for (int j = 0; j < count_input_pins; j++)
114 hr = IAMCrossbar_CanRoute(cross_bar, i, j);
116 av_log(avctx, log_level ,"%d ", j);
118 av_log(avctx, log_level, "\n");
121 for (i = 0; i < count_input_pins; i++)
123 long related_pin, pin_type;
124 hr = IAMCrossbar_get_CrossbarPinInfo(cross_bar, TRUE, i, &related_pin, &pin_type);
126 av_log(avctx, AV_LOG_ERROR, "unable to get crossbar info audio input from pin %d\n", i);
129 av_log(avctx, log_level, " Crossbar Input pin %d - \"%s\" ", i, GetPhysicalPinName(pin_type));
130 av_log(avctx, log_level, "related input pin: %ld\n", related_pin);
136 * Given a fully constructed graph, check if there is a cross bar filter, and configure its pins if so.
139 dshow_try_setup_crossbar_options(ICaptureGraphBuilder2 *graph_builder2,
140 IBaseFilter *device_filter, enum dshowDeviceType devtype, AVFormatContext *avctx)
142 struct dshow_ctx *ctx = avctx->priv_data;
143 IAMCrossbar *cross_bar = NULL;
144 IBaseFilter *cross_bar_filter = NULL;
147 hr = ICaptureGraphBuilder2_FindInterface(graph_builder2, &LOOK_UPSTREAM_ONLY, (const GUID *) NULL,
148 (IBaseFilter *) device_filter, &IID_IAMCrossbar, (void**) &cross_bar);
150 /* no crossbar found */
155 if (ctx->show_crossbar_connection_dialog) {
156 hr = IAMCrossbar_QueryInterface(cross_bar, &IID_IBaseFilter, (void **) &cross_bar_filter);
159 dshow_show_filter_properties(cross_bar_filter, avctx);
161 hr = setup_crossbar_options(cross_bar, devtype, avctx);
167 IAMCrossbar_Release(cross_bar);
168 if (cross_bar_filter)
169 IBaseFilter_Release(cross_bar_filter);