2013-03-09 15:29:14 +01:00
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/*****************************************************************************
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* stats.c : stats plugin for vlc
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*****************************************************************************
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* Copyright (C) 2000-2008 the VideoLAN team
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*
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* Authors: Samuel Hocevar <sam@zoy.org>
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* Pierre d'Herbemont <pdherbemont@videolan.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, 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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/* Example usage:
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* $ vlc movie.avi --sout="#transcode{aenc=dummy,venc=stats}:\
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* std{access=http,mux=dummy,dst=0.0.0.0:8081}"
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2017-03-10 10:10:29 +01:00
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* $ vlc -vv http://127.0.0.1:8081 --demux=stats --vout=stats --codec=stats
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2013-03-09 15:29:14 +01:00
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*/
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#define kBufferSize 0x500
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2015-03-21 13:15:22 +01:00
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#define VLC_MODULE_LICENSE VLC_LICENSE_GPL_2_PLUS
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2013-03-09 15:29:14 +01:00
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#include <vlc_common.h>
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#include <vlc_plugin.h>
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#include <vlc_codec.h>
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#include <vlc_demux.h>
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/*** Decoder ***/
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2017-02-07 10:21:22 +01:00
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static int DecodeBlock( decoder_t *p_dec, block_t *p_block )
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2013-03-09 15:29:14 +01:00
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{
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picture_t * p_pic = NULL;
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2017-02-07 10:21:22 +01:00
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if( p_block == NULL ) /* No Drain */
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return VLCDEC_SUCCESS;
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2013-03-09 15:29:14 +01:00
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2016-09-26 16:51:35 +02:00
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if( !decoder_UpdateVideoFormat( p_dec ) )
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p_pic = decoder_NewPicture( p_dec );
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2016-09-26 16:30:19 +02:00
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if( !p_pic )
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goto error;
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2013-03-09 15:29:14 +01:00
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if( p_block->i_buffer == kBufferSize )
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{
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msg_Dbg( p_dec, "got %"PRIu64" ms",
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*(mtime_t *)p_block->p_buffer / 1000 );
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msg_Dbg( p_dec, "got %"PRIu64" ms offset",
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(mdate() - *(mtime_t *)p_block->p_buffer) / 1000 );
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*(mtime_t *)(p_pic->p->p_pixels) = *(mtime_t *)p_block->p_buffer;
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}
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else
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{
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msg_Dbg( p_dec, "got a packet not from stats demuxer" );
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*(mtime_t *)(p_pic->p->p_pixels) = mdate();
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}
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p_pic->date = p_block->i_pts > VLC_TS_INVALID ?
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p_block->i_pts : p_block->i_dts;
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p_pic->b_force = true;
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2016-09-26 16:30:19 +02:00
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error:
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2013-03-09 15:29:14 +01:00
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block_Release( p_block );
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2017-02-07 10:21:22 +01:00
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decoder_QueueVideo( p_dec, p_pic );
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return VLCDEC_SUCCESS;
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2013-03-09 15:29:14 +01:00
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}
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static int OpenDecoder ( vlc_object_t *p_this )
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{
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decoder_t *p_dec = (decoder_t*)p_this;
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msg_Dbg( p_this, "opening stats decoder" );
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/* Set callbacks */
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2017-02-07 10:21:22 +01:00
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p_dec->pf_decode = DecodeBlock;
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2013-03-09 15:29:14 +01:00
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/* */
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es_format_Init( &p_dec->fmt_out, VIDEO_ES, VLC_CODEC_I420 );
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p_dec->fmt_out.video.i_width = 100;
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p_dec->fmt_out.video.i_height = 100;
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p_dec->fmt_out.video.i_sar_num = 1;
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p_dec->fmt_out.video.i_sar_den = 1;
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return VLC_SUCCESS;
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}
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/*** Encoder ***/
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2013-03-09 15:30:46 +01:00
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#ifdef ENABLE_SOUT
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2013-03-09 15:29:14 +01:00
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static block_t *EncodeVideo( encoder_t *p_enc, picture_t *p_pict )
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{
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(void)p_pict;
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block_t * p_block = block_Alloc( kBufferSize );
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*(mtime_t*)p_block->p_buffer = mdate();
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p_block->i_buffer = kBufferSize;
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p_block->i_length = kBufferSize;
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p_block->i_dts = p_pict->date;
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msg_Dbg( p_enc, "putting %"PRIu64"ms",
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*(mtime_t*)p_block->p_buffer / 1000 );
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return p_block;
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}
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static block_t *EncodeAudio( encoder_t *p_enc, block_t *p_abuff )
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{
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(void)p_abuff;
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(void)p_enc;
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return NULL;
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}
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static int OpenEncoder ( vlc_object_t *p_this )
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{
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encoder_t *p_enc = (encoder_t *)p_this;
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msg_Dbg( p_this, "opening stats encoder" );
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p_enc->pf_encode_video = EncodeVideo;
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p_enc->pf_encode_audio = EncodeAudio;
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return VLC_SUCCESS;
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}
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2013-03-09 15:30:46 +01:00
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#endif
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2013-03-09 15:29:14 +01:00
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2013-03-09 15:30:46 +01:00
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/*** Demuxer ***/
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2013-03-09 15:29:14 +01:00
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struct demux_sys_t
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{
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es_format_t fmt;
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es_out_id_t *p_es;
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date_t pts;
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};
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static int Demux( demux_t *p_demux )
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{
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demux_sys_t *p_sys = p_demux->p_sys;
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2016-07-20 22:02:54 +02:00
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block_t * p_block = vlc_stream_Block( p_demux->s, kBufferSize );
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2013-03-09 15:29:14 +01:00
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if( !p_block ) return 1;
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p_block->i_dts = p_block->i_pts =
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date_Increment( &p_sys->pts, kBufferSize );
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msg_Dbg( p_demux, "demux got %d ms offset", (int)(mdate() - *(mtime_t *)p_block->p_buffer) / 1000 );
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//es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block->i_pts );
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es_out_Send( p_demux->out, p_sys->p_es, p_block );
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return 1;
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}
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static int DemuxControl( demux_t *p_demux, int i_query, va_list args )
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{
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return demux_vaControlHelper( p_demux->s,
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0, 0, 0, 1,
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i_query, args );
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}
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static int OpenDemux ( vlc_object_t *p_this )
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{
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demux_t *p_demux = (demux_t*)p_this;
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demux_sys_t *p_sys;
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p_demux->p_sys = NULL;
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/* Only when selected */
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if( *p_demux->psz_demux == '\0' )
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return VLC_EGENERIC;
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msg_Dbg( p_demux, "Init Stat demux" );
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p_demux->pf_demux = Demux;
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p_demux->pf_control = DemuxControl;
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p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
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if( !p_demux->p_sys )
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return VLC_ENOMEM;
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date_Init( &p_sys->pts, 1, 1 );
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date_Set( &p_sys->pts, 1 );
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es_format_Init( &p_sys->fmt, VIDEO_ES, VLC_FOURCC('s','t','a','t') );
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p_sys->fmt.video.i_width = 720;
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p_sys->fmt.video.i_height= 480;
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p_sys->p_es = es_out_Add( p_demux->out, &p_sys->fmt );
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return VLC_SUCCESS;
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}
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static void CloseDemux ( vlc_object_t *p_this )
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{
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demux_t *p_demux = (demux_t*)p_this;
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msg_Dbg( p_demux, "Closing Stat demux" );
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free( p_demux->p_sys );
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}
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vlc_module_begin ()
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set_shortname( N_("Stats"))
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2013-03-09 15:30:46 +01:00
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#ifdef ENABLE_SOUT
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2013-03-09 15:29:14 +01:00
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set_description( N_("Stats encoder function") )
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set_capability( "encoder", 0 )
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add_shortcut( "stats" )
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set_callbacks( OpenEncoder, NULL )
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add_submodule ()
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2013-03-09 15:30:46 +01:00
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#endif
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2013-03-09 15:29:14 +01:00
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set_section( N_( "Stats decoder" ), NULL )
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set_description( N_("Stats decoder function") )
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2017-06-19 19:50:34 +02:00
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set_capability( "video decoder", 0 )
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2013-03-09 15:29:14 +01:00
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add_shortcut( "stats" )
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set_callbacks( OpenDecoder, NULL )
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2017-06-19 19:40:18 +02:00
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add_submodule()
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set_section( N_( "Stats decoder" ), NULL )
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set_description( N_("Stats decoder function") )
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set_capability( "audio decoder", 0 )
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add_shortcut( "stats" )
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set_callbacks( OpenDecoder, NULL )
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2017-06-19 19:50:34 +02:00
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add_submodule()
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set_section( N_( "Stats decoder" ), NULL )
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set_description( N_("Stats decoder function") )
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set_capability( "decoder", 0 )
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add_shortcut( "stats" )
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set_callbacks( OpenDecoder, NULL )
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2013-03-09 15:29:14 +01:00
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add_submodule ()
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set_section( N_( "Stats demux" ), NULL )
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set_description( N_("Stats demux function") )
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set_capability( "demux", 0 )
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add_shortcut( "stats" )
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set_callbacks( OpenDemux, CloseDemux )
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vlc_module_end ()
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