mirror of
https://code.videolan.org/videolan/vlc
synced 2024-07-21 07:24:15 +02:00
99fab9089e
Missing some cases that I could not test. Also ffmpeg/chroma.c is locked, so I can but leave it broken. Fix is for the remaining modules is obvious and the issue is easy to detect.
230 lines
6.8 KiB
C
230 lines
6.8 KiB
C
/*****************************************************************************
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* display.c: display stream output module
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*****************************************************************************
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* Copyright (C) 2001, 2002 the VideoLAN team
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* $Id$
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*
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* Authors: Laurent Aimar <fenrir@via.ecp.fr>
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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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/*****************************************************************************
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* Preamble
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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 <vlc/vlc.h>
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#include <vlc_input.h>
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#include <vlc_sout.h>
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#include <vlc_block.h>
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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#define AUDIO_TEXT N_("Enable audio")
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#define AUDIO_LONGTEXT N_( "Enable/disable audio rendering." )
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#define VIDEO_TEXT N_("Enable video")
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#define VIDEO_LONGTEXT N_( "Enable/disable video rendering." )
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#define DELAY_TEXT N_("Delay")
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#define DELAY_LONGTEXT N_( "Introduces a delay in the display of the stream." )
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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 SOUT_CFG_PREFIX "sout-display-"
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vlc_module_begin();
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set_shortname( _("Display"));
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set_description( _("Display stream output") );
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set_capability( "sout stream", 50 );
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add_shortcut( "display" );
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set_category( CAT_SOUT );
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set_subcategory( SUBCAT_SOUT_STREAM );
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add_bool( SOUT_CFG_PREFIX "audio", 1, NULL, AUDIO_TEXT,
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AUDIO_LONGTEXT, VLC_TRUE );
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add_bool( SOUT_CFG_PREFIX "video", 1, NULL, VIDEO_TEXT,
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VIDEO_LONGTEXT, VLC_TRUE );
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add_integer( SOUT_CFG_PREFIX "delay", 100, NULL, DELAY_TEXT,
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DELAY_LONGTEXT, VLC_TRUE );
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set_callbacks( Open, Close );
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vlc_module_end();
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/*****************************************************************************
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* Exported prototypes
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*****************************************************************************/
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static const char *ppsz_sout_options[] = {
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"audio", "video", "delay", NULL
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};
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static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
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static int Del ( sout_stream_t *, sout_stream_id_t * );
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static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
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struct sout_stream_sys_t
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{
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input_thread_t *p_input;
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unsigned i_es;
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vlc_bool_t b_audio;
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vlc_bool_t b_video;
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mtime_t i_delay;
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};
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/*****************************************************************************
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* Open:
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*****************************************************************************/
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static int Open( vlc_object_t *p_this )
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{
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sout_stream_t *p_stream = (sout_stream_t*)p_this;
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sout_stream_sys_t *p_sys;
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vlc_value_t val;
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config_ChainParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
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p_stream->p_cfg );
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p_sys = malloc( sizeof( sout_stream_sys_t ) );
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p_sys->p_input = NULL;
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p_sys->i_es = 0;
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var_Get( p_stream, SOUT_CFG_PREFIX "audio", &val );
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p_sys->b_audio = val.b_bool;
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var_Get( p_stream, SOUT_CFG_PREFIX "video", &val );
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p_sys->b_video = val.b_bool;
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var_Get( p_stream, SOUT_CFG_PREFIX "delay", &val );
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p_sys->i_delay = (int64_t)val.i_int * 1000;
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p_stream->pf_add = Add;
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p_stream->pf_del = Del;
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p_stream->pf_send = Send;
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p_stream->p_sys = p_sys;
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/* update p_sout->i_out_pace_nocontrol */
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p_stream->p_sout->i_out_pace_nocontrol++;
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* Close:
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*****************************************************************************/
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static void Close( vlc_object_t * p_this )
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{
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sout_stream_t *p_stream = (sout_stream_t*)p_this;
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sout_stream_sys_t *p_sys = p_stream->p_sys;
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/* update p_sout->i_out_pace_nocontrol */
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p_stream->p_sout->i_out_pace_nocontrol--;
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free( p_sys );
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}
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struct sout_stream_id_t
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{
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decoder_t *p_dec;
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};
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static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
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{
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sout_stream_sys_t *p_sys = p_stream->p_sys;
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sout_stream_id_t *id;
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if( ( p_fmt->i_cat == AUDIO_ES && !p_sys->b_audio )||
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( p_fmt->i_cat == VIDEO_ES && !p_sys->b_video ) )
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{
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return NULL;
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}
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id = malloc( sizeof( sout_stream_id_t ) );
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if( id == NULL )
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return NULL;
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if( p_sys->i_es == 0 )
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{
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p_sys->p_input = vlc_object_find( p_stream, VLC_OBJECT_INPUT,
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FIND_PARENT );
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if( p_sys->p_input == NULL )
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{
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msg_Err( p_stream, "cannot find input" );
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free( id );
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return NULL;
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}
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}
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id->p_dec = input_DecoderNew( p_sys->p_input, p_fmt, VLC_TRUE );
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if( id->p_dec == NULL )
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{
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msg_Err( p_stream, "cannot create decoder for fcc=`%4.4s'",
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(char*)&p_fmt->i_codec );
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free( id );
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if( p_sys->i_es == 0 )
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vlc_object_release( p_sys->p_input );
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return NULL;
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}
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p_sys->i_es++;
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return id;
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}
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static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
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{
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input_DecoderDelete( id->p_dec );
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if( --p_stream->p_sys->i_es == 0)
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vlc_object_release( p_stream->p_sys->p_input );
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free( id );
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return VLC_SUCCESS;
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}
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static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
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block_t *p_buffer )
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{
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sout_stream_sys_t *p_sys = p_stream->p_sys;
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while( p_buffer )
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{
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block_t *p_next = p_buffer->p_next;
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p_buffer->p_next = NULL;
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if( id->p_dec && p_buffer->i_buffer > 0 )
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{
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if( p_buffer->i_dts <= 0 )
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p_buffer->i_dts= 0;
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else
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p_buffer->i_dts += p_sys->i_delay;
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if( p_buffer->i_pts <= 0 )
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p_buffer->i_pts= 0;
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else
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p_buffer->i_pts += p_sys->i_delay;
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input_DecoderDecode( id->p_dec, p_buffer );
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}
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p_buffer = p_next;
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}
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return VLC_SUCCESS;
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}
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