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656 lines
20 KiB
656 lines
20 KiB
/*****************************************************************************
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* decklink.cpp: BlackMagic DeckLink SDI input module
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*****************************************************************************
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* Copyright (C) 2010 Steinar H. Gunderson
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*
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* Authors: Steinar H. Gunderson <steinar+vlc@gunderson.no>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#define __STDC_CONSTANT_MACROS 1
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <vlc_common.h>
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#include <vlc_plugin.h>
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#include <vlc_demux.h>
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#include <vlc_atomic.h>
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#include <arpa/inet.h>
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#include <DeckLinkAPI.h>
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#include <DeckLinkAPIDispatch.cpp>
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static int Open (vlc_object_t *);
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static void Close(vlc_object_t *);
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#define CARD_INDEX_TEXT N_("Input card to use")
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#define CARD_INDEX_LONGTEXT N_( \
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"DeckLink capture card to use, if multiple exist. " \
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"The cards are numbered from 0.")
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#define MODE_TEXT N_("Desired input video mode")
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#define MODE_LONGTEXT N_( \
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"Desired input video mode for DeckLink captures. " \
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"This value should be a FOURCC code in textual " \
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"form, e.g. \"ntsc\".")
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#define AUDIO_CONNECTION_TEXT N_("Audio connection")
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#define AUDIO_CONNECTION_LONGTEXT N_( \
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"Audio connection to use for DeckLink captures. " \
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"Valid choices: embedded, aesebu, analog. " \
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"Leave blank for card default.")
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#define RATE_TEXT N_("Audio sampling rate in Hz")
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#define RATE_LONGTEXT N_( \
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"Audio sampling rate (in hertz) for DeckLink captures. " \
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"0 disables audio input.")
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#define CHANNELS_TEXT N_("Number of audio channels")
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#define CHANNELS_LONGTEXT N_( \
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"Number of input audio channels for DeckLink captures. " \
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"Must be 2, 8 or 16. 0 disables audio input.")
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#define VIDEO_CONNECTION_TEXT N_("Video connection")
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#define VIDEO_CONNECTION_LONGTEXT N_( \
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"Video connection to use for DeckLink captures. " \
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"Valid choices: sdi, hdmi, opticalsdi, component, " \
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"composite, svideo. " \
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"Leave blank for card default.")
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static const char *const ppsz_videoconns[] = {
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"sdi", "hdmi", "opticalsdi", "component", "composite", "svideo"
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};
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static const char *const ppsz_videoconns_text[] = {
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N_("SDI"), N_("HDMI"), N_("Optical SDI"), N_("Component"), N_("Composite"), N_("S-video")
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};
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static const char *const ppsz_audioconns[] = {
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"embedded", "aesebu", "analog"
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};
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static const char *const ppsz_audioconns_text[] = {
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N_("Embedded"), N_("AES/EBU"), N_("Analog")
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};
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#define ASPECT_RATIO_TEXT N_("Aspect ratio")
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#define ASPECT_RATIO_LONGTEXT N_(\
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"Aspect ratio (4:3, 16:9). Default assumes square pixels.")
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vlc_module_begin ()
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set_shortname(N_("DeckLink"))
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set_description(N_("Blackmagic DeckLink SDI input"))
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set_category(CAT_INPUT)
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set_subcategory(SUBCAT_INPUT_ACCESS)
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add_integer("decklink-card-index", 0,
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CARD_INDEX_TEXT, CARD_INDEX_LONGTEXT, true)
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add_string("decklink-mode", "pal ",
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MODE_TEXT, MODE_LONGTEXT, true)
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add_string("decklink-audio-connection", 0,
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AUDIO_CONNECTION_TEXT, AUDIO_CONNECTION_LONGTEXT, true)
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change_string_list(ppsz_audioconns, ppsz_audioconns_text)
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add_integer("decklink-audio-rate", 48000,
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RATE_TEXT, RATE_LONGTEXT, true)
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add_integer("decklink-audio-channels", 2,
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CHANNELS_TEXT, CHANNELS_LONGTEXT, true)
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add_string("decklink-video-connection", 0,
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VIDEO_CONNECTION_TEXT, VIDEO_CONNECTION_LONGTEXT, true)
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change_string_list(ppsz_videoconns, ppsz_videoconns_text)
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add_string("decklink-aspect-ratio", NULL,
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ASPECT_RATIO_TEXT, ASPECT_RATIO_LONGTEXT, true)
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add_shortcut("decklink")
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set_capability("access_demux", 10)
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set_callbacks(Open, Close)
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vlc_module_end ()
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static int Control(demux_t *, int, va_list);
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class DeckLinkCaptureDelegate;
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struct demux_sys_t
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{
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IDeckLink *card;
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IDeckLinkInput *input;
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DeckLinkCaptureDelegate *delegate;
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/* We need to hold onto the IDeckLinkConfiguration object, or our settings will not apply.
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See section 2.4.15 of the Blackmagic Decklink SDK documentation. */
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IDeckLinkConfiguration *config;
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es_out_id_t *video_es;
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es_out_id_t *audio_es;
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vlc_mutex_t pts_lock;
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int last_pts; /* protected by <pts_lock> */
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uint32_t dominance_flags;
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int channels;
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};
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class DeckLinkCaptureDelegate : public IDeckLinkInputCallback
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{
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public:
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DeckLinkCaptureDelegate(demux_t *demux) : demux_(demux)
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{
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vlc_atomic_set(&m_ref_, 1);
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}
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virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, LPVOID *) { return E_NOINTERFACE; }
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virtual ULONG STDMETHODCALLTYPE AddRef(void)
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{
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return vlc_atomic_inc(&m_ref_);
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}
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virtual ULONG STDMETHODCALLTYPE Release(void)
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{
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uintptr_t new_ref = vlc_atomic_dec(&m_ref_);
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if (new_ref == 0)
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delete this;
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return new_ref;
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}
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virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents, IDeckLinkDisplayMode*, BMDDetectedVideoInputFormatFlags)
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{
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msg_Dbg(demux_, "Video input format changed");
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return S_OK;
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}
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virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame*, IDeckLinkAudioInputPacket*);
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private:
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vlc_atomic_t m_ref_;
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demux_t *demux_;
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};
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HRESULT DeckLinkCaptureDelegate::VideoInputFrameArrived(IDeckLinkVideoInputFrame* videoFrame, IDeckLinkAudioInputPacket* audioFrame)
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{
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demux_sys_t *sys = demux_->p_sys;
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if (videoFrame)
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{
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if (videoFrame->GetFlags() & bmdFrameHasNoInputSource)
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{
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msg_Warn(demux_, "No input signal detected");
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return S_OK;
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}
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const int width = videoFrame->GetWidth();
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const int height = videoFrame->GetHeight();
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const int stride = videoFrame->GetRowBytes();
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const int bpp = 2;
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block_t *video_frame = block_New(demux_, width * height * bpp);
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if (!video_frame)
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return S_OK;
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void *frame_bytes;
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videoFrame->GetBytes(&frame_bytes);
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for (int y = 0; y < height; ++y)
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{
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const uint8_t *src = (const uint8_t *)frame_bytes + stride * y;
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uint8_t *dst = video_frame->p_buffer + width * bpp * y;
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memcpy(dst, src, width * bpp);
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}
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BMDTimeValue stream_time, frame_duration;
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videoFrame->GetStreamTime(&stream_time, &frame_duration, CLOCK_FREQ);
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video_frame->i_flags = BLOCK_FLAG_TYPE_I | sys->dominance_flags;
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video_frame->i_pts = video_frame->i_dts = VLC_TS_0 + stream_time;
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vlc_mutex_lock(&sys->pts_lock);
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if (video_frame->i_pts > sys->last_pts)
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sys->last_pts = video_frame->i_pts;
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vlc_mutex_unlock(&sys->pts_lock);
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es_out_Control(demux_->out, ES_OUT_SET_PCR, video_frame->i_pts);
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es_out_Send(demux_->out, sys->video_es, video_frame);
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}
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if (audioFrame)
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{
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const int bytes = audioFrame->GetSampleFrameCount() * sizeof(int16_t) * sys->channels;
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block_t *audio_frame = block_New(demux_, bytes);
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if (!audio_frame)
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return S_OK;
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void *frame_bytes;
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audioFrame->GetBytes(&frame_bytes);
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memcpy(audio_frame->p_buffer, frame_bytes, bytes);
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BMDTimeValue packet_time;
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audioFrame->GetPacketTime(&packet_time, CLOCK_FREQ);
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audio_frame->i_pts = audio_frame->i_dts = VLC_TS_0 + packet_time;
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vlc_mutex_lock(&sys->pts_lock);
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if (audio_frame->i_pts > sys->last_pts)
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sys->last_pts = audio_frame->i_pts;
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vlc_mutex_unlock(&sys->pts_lock);
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if (audio_frame->i_pts > sys->last_pts)
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es_out_Control(demux_->out, ES_OUT_SET_PCR, audio_frame->i_pts);
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es_out_Send(demux_->out, sys->audio_es, audio_frame);
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}
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return S_OK;
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}
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static int GetAudioConn(demux_t *demux)
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{
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demux_sys_t *sys = demux->p_sys;
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char *opt = var_CreateGetNonEmptyString(demux, "decklink-audio-connection");
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if (!opt)
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return VLC_SUCCESS;
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BMDAudioConnection c;
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if (!strcmp(opt, "embedded"))
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c = bmdAudioConnectionEmbedded;
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else if (!strcmp(opt, "aesebu"))
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c = bmdAudioConnectionAESEBU;
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else if (!strcmp(opt, "analog"))
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c = bmdAudioConnectionAnalog;
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else
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{
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msg_Err(demux, "Invalid audio-connection: `%s\' specified", opt);
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free(opt);
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return VLC_EGENERIC;
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}
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if (sys->config->SetInt(bmdDeckLinkConfigAudioInputConnection, c) != S_OK)
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{
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msg_Err(demux, "Failed to set audio input connection");
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return VLC_EGENERIC;
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}
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return VLC_SUCCESS;
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}
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static int GetVideoConn(demux_t *demux)
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{
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demux_sys_t *sys = demux->p_sys;
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char *opt = var_InheritString(demux, "decklink-video-connection");
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if (!opt)
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return VLC_SUCCESS;
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BMDVideoConnection c;
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if (!strcmp(opt, "sdi"))
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c = bmdVideoConnectionSDI;
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else if (!strcmp(opt, "hdmi"))
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c = bmdVideoConnectionHDMI;
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else if (!strcmp(opt, "opticalsdi"))
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c = bmdVideoConnectionOpticalSDI;
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else if (!strcmp(opt, "component"))
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c = bmdVideoConnectionComponent;
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else if (!strcmp(opt, "composite"))
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c = bmdVideoConnectionComposite;
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else if (!strcmp(opt, "svideo"))
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c = bmdVideoConnectionSVideo;
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else
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{
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msg_Err(demux, "Invalid video-connection: `%s\' specified", opt);
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free(opt);
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return VLC_EGENERIC;
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}
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free(opt);
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if (sys->config->SetInt(bmdDeckLinkConfigVideoInputConnection, c) != S_OK)
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{
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msg_Err(demux, "Failed to set video input connection");
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return VLC_EGENERIC;
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}
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return VLC_SUCCESS;
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}
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static int Open(vlc_object_t *p_this)
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{
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demux_t *demux = (demux_t*)p_this;
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demux_sys_t *sys;
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int ret = VLC_EGENERIC;
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char *display_mode = NULL;
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bool b_found_mode;
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int card_index;
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int width, height, fps_num, fps_den;
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int rate;
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unsigned aspect_num, aspect_den;
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/* Only when selected */
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if (*demux->psz_access == '\0')
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return VLC_EGENERIC;
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/* Set up demux */
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demux->pf_demux = NULL;
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demux->pf_control = Control;
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demux->info.i_update = 0;
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demux->info.i_title = 0;
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demux->info.i_seekpoint = 0;
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demux->p_sys = sys = (demux_sys_t*)calloc(1, sizeof(demux_sys_t));
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if (!sys)
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return VLC_ENOMEM;
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vlc_mutex_init(&sys->pts_lock);
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IDeckLinkDisplayModeIterator *display_iterator = NULL;
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IDeckLinkIterator *decklink_iterator = CreateDeckLinkIteratorInstance();
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if (!decklink_iterator)
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{
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msg_Err(demux, "DeckLink drivers not found.");
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goto finish;
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}
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HRESULT result;
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card_index = var_InheritInteger(demux, "decklink-card-index");
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if (card_index < 0)
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{
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msg_Err(demux, "Invalid card index %d", card_index);
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goto finish;
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}
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for (int i = 0; i <= card_index; ++i)
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{
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if (sys->card)
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sys->card->Release();
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result = decklink_iterator->Next(&sys->card);
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if (result != S_OK)
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break;
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}
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if (result != S_OK)
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{
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msg_Err(demux, "DeckLink PCI card %d not found", card_index);
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goto finish;
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}
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const char *model_name;
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result = sys->card->GetModelName(&model_name);
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if (result != S_OK)
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{
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msg_Err(demux, "Could not get model name");
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goto finish;
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}
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msg_Dbg(demux, "Opened DeckLink PCI card %d (%s)", card_index, model_name);
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if (sys->card->QueryInterface(IID_IDeckLinkInput, (void**)&sys->input) != S_OK)
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{
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msg_Err(demux, "Card has no inputs");
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goto finish;
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}
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/* Set up the video and audio sources. */
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if (sys->card->QueryInterface(IID_IDeckLinkConfiguration, (void**)&sys->config) != S_OK)
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{
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msg_Err(demux, "Failed to get configuration interface");
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goto finish;
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}
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if (GetVideoConn(demux) || GetAudioConn(demux))
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goto finish;
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/* Get the list of display modes. */
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result = sys->input->GetDisplayModeIterator(&display_iterator);
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if (result != S_OK)
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{
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msg_Err(demux, "Failed to enumerate display modes");
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goto finish;
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}
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display_mode = var_CreateGetNonEmptyString(demux, "decklink-mode");
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if (!display_mode || strlen(display_mode) > 4) {
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msg_Err(demux, "Missing or invalid --decklink-mode string");
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goto finish;
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}
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|
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/*
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* Pad the --decklink-mode string to four characters, so the user can specify e.g. "pal"
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* without having to add the trailing space.
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*/
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char sz_display_mode_padded[5];
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strcpy(sz_display_mode_padded, " ");
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for (unsigned i = 0; i < strlen(display_mode); ++i)
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sz_display_mode_padded[i] = display_mode[i];
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BMDDisplayMode wanted_mode_id;
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memcpy(&wanted_mode_id, &sz_display_mode_padded, sizeof(wanted_mode_id));
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b_found_mode = false;
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for (;;)
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{
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IDeckLinkDisplayMode *display_mode;
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result = display_iterator->Next(&display_mode);
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if (result != S_OK || !display_mode)
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break;
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char sz_mode_id_text[5] = {0};
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BMDDisplayMode mode_id = ntohl(display_mode->GetDisplayMode());
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memcpy(sz_mode_id_text, &mode_id, sizeof(mode_id));
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|
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const char *mode_name;
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result = display_mode->GetName(&mode_name);
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|
if (result != S_OK)
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{
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msg_Err(demux, "Failed to get display mode name");
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|
display_mode->Release();
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goto finish;
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}
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|
BMDTimeValue frame_duration, time_scale;
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result = display_mode->GetFrameRate(&frame_duration, &time_scale);
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if (result != S_OK)
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{
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msg_Err(demux, "Failed to get frame rate");
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display_mode->Release();
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goto finish;
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}
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const char *field_dominance;
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uint32_t dominance_flags = 0;
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switch(display_mode->GetFieldDominance())
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{
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case bmdProgressiveFrame:
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field_dominance = "";
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break;
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case bmdProgressiveSegmentedFrame:
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field_dominance = ", segmented";
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break;
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case bmdLowerFieldFirst:
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|
field_dominance = ", interlaced [BFF]";
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dominance_flags = BLOCK_FLAG_BOTTOM_FIELD_FIRST;
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break;
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case bmdUpperFieldFirst:
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field_dominance = ", interlaced [TFF]";
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dominance_flags = BLOCK_FLAG_TOP_FIELD_FIRST;
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break;
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case bmdUnknownFieldDominance:
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|
default:
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field_dominance = ", unknown field dominance";
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break;
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}
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msg_Dbg(demux, "Found mode '%s': %s (%dx%d, %.3f fps%s)",
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sz_mode_id_text, mode_name,
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(int)display_mode->GetWidth(), (int)display_mode->GetHeight(),
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|
double(time_scale) / frame_duration, field_dominance);
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|
|
if (wanted_mode_id == mode_id)
|
|
{
|
|
b_found_mode = true;
|
|
width = display_mode->GetWidth();
|
|
height = display_mode->GetHeight();
|
|
fps_num = time_scale;
|
|
fps_den = frame_duration;
|
|
sys->dominance_flags = dominance_flags;
|
|
}
|
|
|
|
display_mode->Release();
|
|
}
|
|
|
|
if (!b_found_mode)
|
|
{
|
|
msg_Err(demux, "Unknown video mode specified. "
|
|
"Run VLC with -vv to get a list of supported modes.");
|
|
goto finish;
|
|
}
|
|
|
|
result = sys->input->EnableVideoInput(htonl(wanted_mode_id), bmdFormat8BitYUV, 0);
|
|
if (result != S_OK)
|
|
{
|
|
msg_Err(demux, "Failed to enable video input");
|
|
goto finish;
|
|
}
|
|
|
|
/* Set up audio. */
|
|
sys->channels = var_InheritInteger(demux, "decklink-audio-channels");
|
|
rate = var_InheritInteger(demux, "decklink-audio-rate");
|
|
if (rate > 0 && sys->channels > 0)
|
|
{
|
|
result = sys->input->EnableAudioInput(rate, bmdAudioSampleType16bitInteger, sys->channels);
|
|
if (result != S_OK)
|
|
{
|
|
msg_Err(demux, "Failed to enable audio input");
|
|
goto finish;
|
|
}
|
|
}
|
|
|
|
sys->delegate = new DeckLinkCaptureDelegate(demux);
|
|
sys->input->SetCallback(sys->delegate);
|
|
|
|
result = sys->input->StartStreams();
|
|
if (result != S_OK)
|
|
{
|
|
msg_Err(demux, "Could not start streaming from SDI card. This could be caused "
|
|
"by invalid video mode or flags, access denied, or card already in use.");
|
|
goto finish;
|
|
}
|
|
|
|
/* Declare elementary streams */
|
|
es_format_t video_fmt;
|
|
es_format_Init(&video_fmt, VIDEO_ES, VLC_CODEC_UYVY);
|
|
video_fmt.video.i_width = width;
|
|
video_fmt.video.i_height = height;
|
|
video_fmt.video.i_sar_num = 1;
|
|
video_fmt.video.i_sar_den = 1;
|
|
video_fmt.video.i_frame_rate = fps_num;
|
|
video_fmt.video.i_frame_rate_base = fps_den;
|
|
video_fmt.i_bitrate = video_fmt.video.i_width * video_fmt.video.i_height * video_fmt.video.i_frame_rate * 2 * 8;
|
|
|
|
if (!var_InheritURational(demux, &aspect_num, &aspect_den, "decklink-aspect-ratio") &&
|
|
aspect_num > 0 && aspect_den > 0) {
|
|
video_fmt.video.i_sar_num = aspect_num * video_fmt.video.i_height;
|
|
video_fmt.video.i_sar_den = aspect_den * video_fmt.video.i_width;
|
|
}
|
|
|
|
msg_Dbg(demux, "added new video es %4.4s %dx%d",
|
|
(char*)&video_fmt.i_codec, video_fmt.video.i_width, video_fmt.video.i_height);
|
|
sys->video_es = es_out_Add(demux->out, &video_fmt);
|
|
|
|
es_format_t audio_fmt;
|
|
es_format_Init(&audio_fmt, AUDIO_ES, VLC_CODEC_S16N);
|
|
audio_fmt.audio.i_channels = sys->channels;
|
|
audio_fmt.audio.i_rate = rate;
|
|
audio_fmt.audio.i_bitspersample = 16;
|
|
audio_fmt.audio.i_blockalign = audio_fmt.audio.i_channels * audio_fmt.audio.i_bitspersample / 8;
|
|
audio_fmt.i_bitrate = audio_fmt.audio.i_channels * audio_fmt.audio.i_rate * audio_fmt.audio.i_bitspersample;
|
|
|
|
msg_Dbg(demux, "added new audio es %4.4s %dHz %dbpp %dch",
|
|
(char*)&audio_fmt.i_codec, audio_fmt.audio.i_rate, audio_fmt.audio.i_bitspersample, audio_fmt.audio.i_channels);
|
|
sys->audio_es = es_out_Add(demux->out, &audio_fmt);
|
|
|
|
ret = VLC_SUCCESS;
|
|
|
|
finish:
|
|
if (decklink_iterator)
|
|
decklink_iterator->Release();
|
|
|
|
free(display_mode);
|
|
|
|
if (display_iterator)
|
|
display_iterator->Release();
|
|
|
|
if (ret != VLC_SUCCESS)
|
|
Close(p_this);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void Close(vlc_object_t *p_this)
|
|
{
|
|
demux_t *demux = (demux_t *)p_this;
|
|
demux_sys_t *sys = demux->p_sys;
|
|
|
|
if (sys->config)
|
|
sys->config->Release();
|
|
|
|
if (sys->input)
|
|
{
|
|
sys->input->StopStreams();
|
|
sys->input->Release();
|
|
}
|
|
|
|
if (sys->card)
|
|
sys->card->Release();
|
|
|
|
if (sys->delegate)
|
|
sys->delegate->Release();
|
|
|
|
vlc_mutex_destroy(&sys->pts_lock);
|
|
free(sys);
|
|
}
|
|
|
|
static int Control(demux_t *demux, int query, va_list args)
|
|
{
|
|
demux_sys_t *sys = demux->p_sys;
|
|
bool *pb;
|
|
int64_t *pi64;
|
|
|
|
switch(query)
|
|
{
|
|
/* Special for access_demux */
|
|
case DEMUX_CAN_PAUSE:
|
|
case DEMUX_CAN_SEEK:
|
|
case DEMUX_CAN_CONTROL_PACE:
|
|
pb = (bool*)va_arg(args, bool *);
|
|
*pb = false;
|
|
return VLC_SUCCESS;
|
|
|
|
case DEMUX_GET_PTS_DELAY:
|
|
pi64 = (int64_t*)va_arg(args, int64_t *);
|
|
*pi64 = INT64_C(1000) * var_InheritInteger(demux, "live-caching");
|
|
return VLC_SUCCESS;
|
|
|
|
case DEMUX_GET_TIME:
|
|
pi64 = (int64_t*)va_arg(args, int64_t *);
|
|
vlc_mutex_lock(&sys->pts_lock);
|
|
*pi64 = sys->last_pts;
|
|
vlc_mutex_unlock(&sys->pts_lock);
|
|
return VLC_SUCCESS;
|
|
|
|
default:
|
|
return VLC_EGENERIC;
|
|
}
|
|
}
|
|
|