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246 lines
7.9 KiB
246 lines
7.9 KiB
/*****************************************************************************
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* SDIOutput.cpp: SDI sout module for vlc
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*****************************************************************************
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* Copyright © 2018 VideoLabs, VideoLAN and VideoLAN Authors
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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 program 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
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* GNU 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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "SDIOutput.hpp"
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#include "SDIStream.hpp"
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#include "SDIAudioMultiplex.hpp"
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#include "sdiout.hpp"
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#include <vlc_sout.h>
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#include <vlc_picture.h>
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using namespace sdi_sout;
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SDIOutput::SDIOutput(sout_stream_t *p_stream_)
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{
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p_stream = p_stream_;
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ops.add = SoutCallback_Add;
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ops.del = SoutCallback_Del;
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ops.send = SoutCallback_Send;
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ops.flush = SoutCallback_Flush;
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ops.control = SoutCallback_Control;
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p_stream->ops = &ops;
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es_format_Init(&video.configuredfmt, VIDEO_ES, 0);
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video.tenbits = var_InheritBool(p_stream, CFG_PREFIX "tenbits");
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video.nosignal_delay = var_InheritInteger(p_stream, CFG_PREFIX "nosignal-delay");
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video.pic_nosignal = NULL;
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audio.i_channels = var_InheritInteger(p_stream, CFG_PREFIX "channels");
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audio.b_configured = false;
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ancillary.afd = var_InheritInteger(p_stream, CFG_PREFIX "afd");
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ancillary.ar = var_InheritInteger(p_stream, CFG_PREFIX "ar");
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ancillary.afd_line = var_InheritInteger(p_stream, CFG_PREFIX "afd-line");
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ancillary.captions_line = 15;
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program = -1;
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videoStream = NULL;
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captionsStream = NULL;
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audioMultiplex = new SDIAudioMultiplex(VLC_OBJECT(p_stream),
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var_InheritInteger(p_stream, CFG_PREFIX "channels"));
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char *psz_channelsconf = var_InheritString(p_stream, CFG_PREFIX "audio");
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if(psz_channelsconf)
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{
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audioMultiplex->config.parseConfiguration(psz_channelsconf);
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free(psz_channelsconf);
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}
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}
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SDIOutput::~SDIOutput()
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{
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videoBuffer.FlushQueued();
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captionsBuffer.FlushQueued();
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while(!audioStreams.empty())
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{
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delete audioStreams.front();
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audioStreams.pop_front();
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}
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delete audioMultiplex;
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delete captionsStream;
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delete videoStream;
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if(video.pic_nosignal)
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picture_Release(video.pic_nosignal);
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es_format_Clean(&video.configuredfmt);
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}
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AbstractStream *SDIOutput::Add(const es_format_t *fmt)
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{
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AbstractStream *s = NULL;
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StreamID id(fmt->i_id);
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if(program >= 0 && fmt->i_group != program)
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return NULL;
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if(fmt->i_cat == VIDEO_ES && !videoStream)
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{
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if(ConfigureVideo(&fmt->video) == VLC_SUCCESS)
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s = videoStream = dynamic_cast<VideoDecodedStream *>(createStream(id, fmt, &videoBuffer));
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if(videoStream)
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{
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videoStream->setOutputFormat(&video.configuredfmt);
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//videoStream->setCaptionsOutputBuffer(&captionsBuffer);
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}
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}
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else if(fmt->i_cat == AUDIO_ES && audio.i_channels)
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{
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if(audio.b_configured || ConfigureAudio(&fmt->audio) == VLC_SUCCESS)
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{
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const es_format_t *cfgfmt = audioMultiplex->config.getConfigurationForStream(id);
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if(!cfgfmt)
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{
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if(!audioMultiplex->config.addMapping(id, fmt))
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return NULL;
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}
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cfgfmt = audioMultiplex->config.updateFromRealESConfig(id, fmt);
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SDIAudioMultiplexBuffer *buffer = audioMultiplex->config.getBufferForStream(id);
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if(!buffer)
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return NULL;
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s = createStream(id, fmt, buffer, audioMultiplex->config.decode(id));
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if(s)
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{
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if(!audioMultiplex->config.decode(id))
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buffer->setCodec(fmt->i_codec);
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AudioDecodedStream *audioStream = dynamic_cast<AudioDecodedStream *>(s);
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if(audioStream)
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audioStream->setOutputFormat(cfgfmt);
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audioStreams.push_back(audioStream);
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std::vector<uint8_t> slots = audioMultiplex->config.getConfiguredSlots(id);
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for(size_t i=0; i<slots.size(); i++)
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{
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msg_Dbg(p_stream, "%s slot %d to read from channel %zd",
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id.toString().c_str(), slots[i], i);
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audioMultiplex->SetSubFrameSource(slots[i], buffer, AES3AudioSubFrameIndex(i));
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}
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}
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}
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}
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else if(fmt->i_cat == SPU_ES && !captionsStream)
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{
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s = captionsStream = dynamic_cast<CaptionsStream *>(createStream(id, fmt, &captionsBuffer, false));
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}
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if(program == -1)
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program = fmt->i_group;
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return s;
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}
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int SDIOutput::Send(AbstractStream *id, block_t *p)
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{
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int ret = id->Send(p);
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Process();
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return ret;
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}
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void SDIOutput::Del(AbstractStream *s)
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{
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s->Drain();
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Process();
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}
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int SDIOutput::Control(int i_query, va_list args)
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{
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switch(i_query)
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{
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case SOUT_STREAM_WANTS_SUBSTREAMS:
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case SOUT_STREAM_IS_SYNCHRONOUS:
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*va_arg(args, bool *) = true;
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return VLC_SUCCESS;
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default:
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return VLC_EGENERIC;
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};
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}
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bool SDIOutput::ReachedPlaybackTime(vlc_tick_t t)
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{
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if (captionsStream &&
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!captionsStream->ReachedPlaybackTime(t))
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return false;
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for(auto it = audioStreams.begin(); it != audioStreams.end(); ++it)
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if(!(*it)->ReachedPlaybackTime(t))
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return false;
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if(!videoStream || /* must have video */
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!videoStream->ReachedPlaybackTime(t))
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return false;
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return true;
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}
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AbstractStream *SDIOutput::createStream(const StreamID &id,
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const es_format_t *fmt,
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AbstractStreamOutputBuffer *buffer,
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bool b_decoded)
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{
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AbstractStream *s = NULL;
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if(b_decoded)
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{
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if(fmt->i_cat == VIDEO_ES)
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s = new VideoDecodedStream(VLC_OBJECT(p_stream), id, buffer);
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else if(fmt->i_cat == AUDIO_ES)
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s = new AudioDecodedStream(VLC_OBJECT(p_stream), id, buffer);
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}
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else
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{
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if(fmt->i_cat == AUDIO_ES)
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s = new AudioCompressedStream(VLC_OBJECT(p_stream), id, buffer);
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else if(fmt->i_cat == SPU_ES)
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s = new CaptionsStream(VLC_OBJECT(p_stream), id, buffer);
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}
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if(s && !s->init(fmt))
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{
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delete s;
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return NULL;
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}
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return s;
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}
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void *SDIOutput::SoutCallback_Add(sout_stream_t *p_stream, const es_format_t *fmt)
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{
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SDIOutput *me = reinterpret_cast<SDIOutput *>(p_stream->p_sys);
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return me->Add(fmt);
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}
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void SDIOutput::SoutCallback_Del(sout_stream_t *p_stream, void *id)
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{
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SDIOutput *me = reinterpret_cast<SDIOutput *>(p_stream->p_sys);
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me->Del(reinterpret_cast<AbstractStream *>(id));
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}
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int SDIOutput::SoutCallback_Send(sout_stream_t *p_stream, void *id, block_t *p_block)
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{
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SDIOutput *me = reinterpret_cast<SDIOutput *>(p_stream->p_sys);
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return me->Send(reinterpret_cast<AbstractStream *>(id), p_block);
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}
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int SDIOutput::SoutCallback_Control(sout_stream_t *p_stream, int query, va_list args)
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{
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SDIOutput *me = reinterpret_cast<SDIOutput *>(p_stream->p_sys);
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return me->Control(query, args);
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}
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void SDIOutput::SoutCallback_Flush(sout_stream_t *, void *id)
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{
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reinterpret_cast<AbstractStream *>(id)->Flush();
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}
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