| /* |
| * DirectShow capture interface |
| * Copyright (c) 2015 Roger Pack |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "dshow_capture.h" |
| |
| static const char * |
| GetPhysicalPinName(long pin_type) |
| { |
| switch (pin_type) |
| { |
| case PhysConn_Video_Tuner: return "Video Tuner"; |
| case PhysConn_Video_Composite: return "Video Composite"; |
| case PhysConn_Video_SVideo: return "S-Video"; |
| case PhysConn_Video_RGB: return "Video RGB"; |
| case PhysConn_Video_YRYBY: return "Video YRYBY"; |
| case PhysConn_Video_SerialDigital: return "Video Serial Digital"; |
| case PhysConn_Video_ParallelDigital: return "Video Parallel Digital"; |
| case PhysConn_Video_SCSI: return "Video SCSI"; |
| case PhysConn_Video_AUX: return "Video AUX"; |
| case PhysConn_Video_1394: return "Video 1394"; |
| case PhysConn_Video_USB: return "Video USB"; |
| case PhysConn_Video_VideoDecoder: return "Video Decoder"; |
| case PhysConn_Video_VideoEncoder: return "Video Encoder"; |
| |
| case PhysConn_Audio_Tuner: return "Audio Tuner"; |
| case PhysConn_Audio_Line: return "Audio Line"; |
| case PhysConn_Audio_Mic: return "Audio Microphone"; |
| case PhysConn_Audio_AESDigital: return "Audio AES/EBU Digital"; |
| case PhysConn_Audio_SPDIFDigital: return "Audio S/PDIF"; |
| case PhysConn_Audio_SCSI: return "Audio SCSI"; |
| case PhysConn_Audio_AUX: return "Audio AUX"; |
| case PhysConn_Audio_1394: return "Audio 1394"; |
| case PhysConn_Audio_USB: return "Audio USB"; |
| case PhysConn_Audio_AudioDecoder: return "Audio Decoder"; |
| default: return "Unknown Crossbar Pin Type—Please report!"; |
| } |
| } |
| |
| static HRESULT |
| setup_crossbar_options(IAMCrossbar *cross_bar, enum dshowDeviceType devtype, AVFormatContext *avctx) |
| { |
| struct dshow_ctx *ctx = avctx->priv_data; |
| long count_output_pins, count_input_pins; |
| int i; |
| int log_level = ctx->list_options ? AV_LOG_INFO : AV_LOG_DEBUG; |
| int video_input_pin = ctx->crossbar_video_input_pin_number; |
| int audio_input_pin = ctx->crossbar_audio_input_pin_number; |
| const char *device_name = ctx->device_name[devtype]; |
| HRESULT hr; |
| |
| av_log(avctx, log_level, "Crossbar Switching Information for %s:\n", device_name); |
| hr = IAMCrossbar_get_PinCounts(cross_bar, &count_output_pins, &count_input_pins); |
| if (hr != S_OK) { |
| av_log(avctx, AV_LOG_ERROR, "Unable to get crossbar pin counts\n"); |
| return hr; |
| } |
| |
| for (i = 0; i < count_output_pins; i++) |
| { |
| int j; |
| long related_pin, pin_type, route_to_pin; |
| hr = IAMCrossbar_get_CrossbarPinInfo(cross_bar, FALSE, i, &related_pin, &pin_type); |
| if (pin_type == PhysConn_Video_VideoDecoder) { |
| /* assume there is only one "Video (and one Audio) Decoder" output pin, and it's all we care about routing to...for now */ |
| if (video_input_pin != -1) { |
| av_log(avctx, log_level, "Routing video input from pin %d\n", video_input_pin); |
| hr = IAMCrossbar_Route(cross_bar, i, video_input_pin); |
| if (hr != S_OK) { |
| av_log(avctx, AV_LOG_ERROR, "Unable to route video input from pin %d\n", video_input_pin); |
| return AVERROR(EIO); |
| } |
| } |
| } else if (pin_type == PhysConn_Audio_AudioDecoder) { |
| if (audio_input_pin != -1) { |
| av_log(avctx, log_level, "Routing audio input from pin %d\n", audio_input_pin); |
| hr = IAMCrossbar_Route(cross_bar, i, audio_input_pin); |
| if (hr != S_OK) { |
| av_log(avctx, AV_LOG_ERROR, "Unable to route audio input from pin %d\n", audio_input_pin); |
| return hr; |
| } |
| } |
| } else { |
| av_log(avctx, AV_LOG_WARNING, "Unexpected output pin type, please report the type if you want to use this (%s)", GetPhysicalPinName(pin_type)); |
| } |
| |
| hr = IAMCrossbar_get_IsRoutedTo(cross_bar, i, &route_to_pin); |
| if (hr != S_OK) { |
| av_log(avctx, AV_LOG_ERROR, "Unable to get crossbar is routed to from pin %d\n", i); |
| return hr; |
| } |
| av_log(avctx, log_level, " Crossbar Output pin %d: \"%s\" related output pin: %ld ", i, GetPhysicalPinName(pin_type), related_pin); |
| av_log(avctx, log_level, "current input pin: %ld ", route_to_pin); |
| av_log(avctx, log_level, "compatible input pins: "); |
| |
| for (j = 0; j < count_input_pins; j++) |
| { |
| hr = IAMCrossbar_CanRoute(cross_bar, i, j); |
| if (hr == S_OK) |
| av_log(avctx, log_level ,"%d ", j); |
| } |
| av_log(avctx, log_level, "\n"); |
| } |
| |
| for (i = 0; i < count_input_pins; i++) |
| { |
| long related_pin, pin_type; |
| hr = IAMCrossbar_get_CrossbarPinInfo(cross_bar, TRUE, i, &related_pin, &pin_type); |
| if (hr != S_OK) { |
| av_log(avctx, AV_LOG_ERROR, "unable to get crossbar info audio input from pin %d\n", i); |
| return hr; |
| } |
| av_log(avctx, log_level, " Crossbar Input pin %d - \"%s\" ", i, GetPhysicalPinName(pin_type)); |
| av_log(avctx, log_level, "related input pin: %ld\n", related_pin); |
| } |
| return S_OK; |
| } |
| |
| /** |
| * Given a fully constructed graph, check if there is a cross bar filter, and configure its pins if so. |
| */ |
| HRESULT |
| dshow_try_setup_crossbar_options(ICaptureGraphBuilder2 *graph_builder2, |
| IBaseFilter *device_filter, enum dshowDeviceType devtype, AVFormatContext *avctx) |
| { |
| struct dshow_ctx *ctx = avctx->priv_data; |
| IAMCrossbar *cross_bar = NULL; |
| IBaseFilter *cross_bar_base_filter = NULL; |
| IAMTVTuner *tv_tuner_filter = NULL; |
| IBaseFilter *tv_tuner_base_filter = NULL; |
| IAMAudioInputMixer *tv_audio_filter = NULL; |
| IBaseFilter *tv_audio_base_filter = NULL; |
| HRESULT hr; |
| |
| hr = ICaptureGraphBuilder2_FindInterface(graph_builder2, &LOOK_UPSTREAM_ONLY, (const GUID *) NULL, |
| device_filter, &IID_IAMCrossbar, (void**) &cross_bar); |
| if (hr != S_OK) { |
| /* no crossbar found */ |
| hr = S_OK; |
| goto end; |
| } |
| /* TODO some TV tuners apparently have multiple crossbars? */ |
| |
| if (devtype == VideoDevice && ctx->show_video_crossbar_connection_dialog || |
| devtype == AudioDevice && ctx->show_audio_crossbar_connection_dialog) { |
| hr = IAMCrossbar_QueryInterface(cross_bar, &IID_IBaseFilter, (void **) &cross_bar_base_filter); |
| if (hr != S_OK) |
| goto end; |
| dshow_show_filter_properties(cross_bar_base_filter, avctx); |
| } |
| |
| if (devtype == VideoDevice && ctx->show_analog_tv_tuner_dialog) { |
| hr = ICaptureGraphBuilder2_FindInterface(graph_builder2, &LOOK_UPSTREAM_ONLY, NULL, |
| device_filter, &IID_IAMTVTuner, (void**) &tv_tuner_filter); |
| if (hr == S_OK) { |
| hr = IAMCrossbar_QueryInterface(tv_tuner_filter, &IID_IBaseFilter, (void **) &tv_tuner_base_filter); |
| if (hr != S_OK) |
| goto end; |
| dshow_show_filter_properties(tv_tuner_base_filter, avctx); |
| } else { |
| av_log(avctx, AV_LOG_WARNING, "unable to find a tv tuner to display dialog for!"); |
| } |
| } |
| if (devtype == AudioDevice && ctx->show_analog_tv_tuner_audio_dialog) { |
| hr = ICaptureGraphBuilder2_FindInterface(graph_builder2, &LOOK_UPSTREAM_ONLY, NULL, |
| device_filter, &IID_IAMTVAudio, (void**) &tv_audio_filter); |
| if (hr == S_OK) { |
| hr = IAMCrossbar_QueryInterface(tv_audio_filter, &IID_IBaseFilter, (void **) &tv_audio_base_filter); |
| if (hr != S_OK) |
| goto end; |
| dshow_show_filter_properties(tv_audio_base_filter, avctx); |
| } else { |
| av_log(avctx, AV_LOG_WARNING, "unable to find a tv audio tuner to display dialog for!"); |
| } |
| } |
| |
| hr = setup_crossbar_options(cross_bar, devtype, avctx); |
| if (hr != S_OK) |
| goto end; |
| |
| end: |
| if (cross_bar) |
| IAMCrossbar_Release(cross_bar); |
| if (cross_bar_base_filter) |
| IBaseFilter_Release(cross_bar_base_filter); |
| if (tv_tuner_filter) |
| IAMTVTuner_Release(tv_tuner_filter); |
| if (tv_tuner_base_filter) |
| IBaseFilter_Release(tv_tuner_base_filter); |
| return hr; |
| } |
