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* src/audio_output/input.c 

src/libvlc.h :
       First try to implement "user audio filters"
       You can provide a list of audio filters that you want to add to
       the pipeline (only the "headphone", at that time).
	(use --audio-filter filter1,filter2,...)

   ***Warning***
   It seems to work, but no guarantee at all. Perhaps all is bad
   and the commit should be reverted, as it could break audio output

* modules/codec/libmpeg2.c :
	Fixed a segfault when vout creation fails
This commit is contained in:
Clément Stenac 2003-08-18 13:16:43 +00:00
parent 236aa93228
commit 0596bf5920
3 changed files with 207 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
modules/codec/libmpeg2.c
View File

@ -2,7 +2,7 @@
* libmpeg2.c: mpeg2 video decoder module making use of libmpeg2.
*****************************************************************************
* Copyright (C) 1999-2001 VideoLAN
* $Id: libmpeg2.c,v 1.24 2003/08/08 17:08:32 gbazin Exp $
* $Id: libmpeg2.c,v 1.25 2003/08/18 13:16:43 zorglub Exp $
*
* Authors: Gildas Bazin <gbazin@netcourrier.com>
*
@ -299,7 +299,13 @@ static int RunDecoder( decoder_fifo_t *p_fifo )
p_dec->p_info->sequence->width,
p_dec->p_info->sequence->height,
VLC_FOURCC('Y','V','1','2'), i_aspect );
if(p_dec->p_vout == NULL )
{
msg_Err( p_dec->p_fifo , "cannot create vout" );
return -1;
}
msg_Dbg( p_dec->p_fifo, "%dx%d, aspect %d, %u.%03u fps",
p_dec->p_info->sequence->width,
p_dec->p_info->sequence->height, i_aspect,

199
src/audio_output/input.c
View File

@ -2,7 +2,7 @@
* input.c : internal management of input streams for the audio output
*****************************************************************************
* Copyright (C) 2002 VideoLAN
* $Id: input.c,v 1.34 2003/04/06 23:44:53 massiot Exp $
* $Id: input.c,v 1.35 2003/08/18 13:16:43 zorglub Exp $
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
*
@ -36,15 +36,34 @@
#include "audio_output.h"
#include "aout_internal.h"
typedef struct user_filter_t
{
char *psz_name;
aout_filter_t * p_filter;
audio_sample_format_t filter_inter_format;
struct user_filter_t *p_next;
} user_filter_t;
/*****************************************************************************
* aout_InputNew : allocate a new input and rework the filter pipeline
*****************************************************************************/
int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input )
{
audio_sample_format_t intermediate_format, headphone_intermediate_format;
audio_sample_format_t intermediate_format;
#if 0
headphone_intermediate_format;
aout_filter_t * p_headphone_filter;
vlc_bool_t b_use_headphone_filter = VLC_FALSE;
#endif
vlc_bool_t b_end=VLC_FALSE;
user_filter_t* p_first_filter=NULL;
user_filter_t* p_current_filter=NULL;
char * psz_filters, *psz_eof;
aout_FormatPrint( p_aout, "input", &p_input->input );
/* Prepare FIFO. */
@ -56,10 +75,94 @@ int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input )
sizeof(audio_sample_format_t) );
intermediate_format.i_rate = p_input->input.i_rate;
/* Build the list of user filters */
psz_filters = config_GetPsz( p_aout , "audio-filter" );
p_first_filter = (user_filter_t *)malloc( sizeof( user_filter_t ) );
if( !p_first_filter )
{
msg_Err( p_aout, "Out of memory" );
return -1;
}
p_current_filter = p_first_filter;
p_current_filter->p_next = NULL;
memcpy( &p_current_filter->filter_inter_format,
&p_aout->mixer.mixer,sizeof(audio_sample_format_t));
p_current_filter->filter_inter_format.i_rate= p_input->input.i_rate;
if(psz_filters != NULL)
{
msg_Dbg(p_aout,"Building list of user filters");
while(1)
{
psz_eof = strchr( psz_filters , ',' );
if( !psz_eof )
{
b_end = VLC_TRUE;
psz_eof = strchr( psz_filters,'\0');
}
if( psz_eof )
{
*psz_eof = '\0';
}
msg_Dbg(p_aout,"Adding user filter: %s",psz_filters);
/* Append the new filter to the list */
p_current_filter->p_next =
(user_filter_t *)malloc(sizeof(user_filter_t));
if( !p_current_filter->p_next )
{
msg_Err( p_aout, "Out of memory" );
return -1;
}
memcpy( &p_current_filter->p_next->filter_inter_format,
&p_current_filter->filter_inter_format,
sizeof(audio_sample_format_t) );
p_current_filter->p_next->filter_inter_format.i_rate =
p_current_filter->filter_inter_format.i_rate;
p_current_filter->p_next->
filter_inter_format.i_physical_channels =
p_current_filter->filter_inter_format.i_physical_channels;
p_current_filter->p_next->
filter_inter_format.i_original_channels =
p_current_filter->filter_inter_format.i_original_channels;
p_current_filter->p_next->filter_inter_format.i_bytes_per_frame =
p_current_filter->p_next->
filter_inter_format.i_bytes_per_frame *
aout_FormatNbChannels(&p_current_filter->p_next->
filter_inter_format) /
aout_FormatNbChannels( &intermediate_format);
/* Go to next filter */
p_current_filter = p_current_filter->p_next;
p_current_filter->p_next= NULL;
p_current_filter->psz_name = strdup(psz_filters);
psz_filters = psz_eof;
psz_filters++;
if(!*psz_filters || b_end == VLC_TRUE)
break;
}
}
#if 0
/* Headphone filter add-ons. */
memcpy( &headphone_intermediate_format, &p_aout->mixer.mixer,
sizeof(audio_sample_format_t) );
headphone_intermediate_format.i_rate = p_input->input.i_rate;
sizeof(audio_sample_format_t) );
headphone_intermediate_format.i_rate =
p_input->input.i_rate;
if ( config_GetInt( p_aout , "headphone-opt" ) )
{
/* Do we use heaphone filter ? */
@ -75,8 +178,10 @@ int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input )
if ( b_use_headphone_filter == VLC_TRUE )
{
/* Split the filter pipeline. */
headphone_intermediate_format.i_physical_channels = p_input->input.i_physical_channels;
headphone_intermediate_format.i_original_channels = p_input->input.i_original_channels;
headphone_intermediate_format.i_physical_channels =
p_input->input.i_physical_channels;
headphone_intermediate_format.i_original_channels =
p_input->input.i_original_channels;
headphone_intermediate_format.i_bytes_per_frame =
headphone_intermediate_format.i_bytes_per_frame
* aout_FormatNbChannels( &headphone_intermediate_format )
@ -86,7 +191,7 @@ int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input )
/* Create filters. */
if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
&p_input->i_nb_filters, &p_input->input,
&headphone_intermediate_format ) < 0 )
&intermediate_format ) < 0 )
{
msg_Err( p_aout, "couldn't set an input pipeline" );
@ -95,8 +200,80 @@ int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input )
return -1;
}
#endif
/* Create filters. */
if ( aout_FiltersCreatePipeline( p_aout, p_input->pp_filters,
&p_input->i_nb_filters,
&p_input->input,
&intermediate_format
) < 0 )
{
msg_Err( p_aout, "couldn't set an input pipeline" );
/* Headphone filter add-ons. */
aout_FifoDestroy( p_aout, &p_input->fifo );
p_input->b_error = 1;
}
if( p_first_filter->p_next)
{
msg_Dbg(p_aout,"Searching user filters...");
p_current_filter = p_first_filter->p_next;
/* Ok, we now start to get the filters, from the first one */
while( p_current_filter )
{
/* Create a VLC object */
p_current_filter->p_filter = vlc_object_create( p_aout,
sizeof(aout_filter_t) );
if(p_current_filter->p_filter == NULL )
{
msg_Err( p_aout, "couldn't open the requested filter module" );
aout_FifoDestroy( p_aout, &p_input->fifo );
p_input->b_error = 1;
return -1;
}
vlc_object_attach( p_current_filter->p_filter , p_aout );
memcpy(&p_current_filter->p_filter->input,
&p_current_filter->filter_inter_format,
sizeof(audio_sample_format_t) );
if( p_current_filter->p_next)
{
memcpy(&p_current_filter->p_filter->output,
&p_current_filter->p_next->filter_inter_format,
sizeof(audio_sample_format_t) );
}
else
{
memcpy(&p_current_filter->p_filter->output,
&intermediate_format,
sizeof(audio_sample_format_t) );
}
p_current_filter->p_filter->p_module =
module_Need(p_current_filter->p_filter,"audio filter",
p_current_filter->psz_name);
if(p_current_filter->p_filter->p_module== NULL )
{
vlc_object_detach( p_current_filter->p_filter);
vlc_object_destroy( p_current_filter->p_filter);
msg_Err( p_aout, "couldn't open the requested module" );
aout_FifoDestroy( p_aout, &p_input->fifo );
p_input->b_error = 1;
return -1;
}
/* success */
p_current_filter->p_filter->b_continuity = VLC_FALSE;
p_input->pp_filters[p_input->i_nb_filters++] =
p_current_filter->p_filter;
/* Go to next */
p_current_filter = p_current_filter->p_next;
}
}
#if 0
/* Headphone filter add-ons. */
if ( b_use_headphone_filter == VLC_TRUE )
{
/* create a vlc object */
@ -133,7 +310,8 @@ int aout_InputNew( aout_instance_t * p_aout, aout_input_t * p_input )
p_headphone_filter->b_continuity = VLC_FALSE;
p_input->pp_filters[p_input->i_nb_filters++] = p_headphone_filter;
}
#endif
/* Prepare hints for the buffer allocator. */
p_input->input_alloc.i_alloc_type = AOUT_ALLOC_HEAP;
p_input->input_alloc.i_bytes_per_sec = -1;
@ -272,6 +450,7 @@ int aout_InputPlay( aout_instance_t * p_aout, aout_input_t * p_input,
if ( start_date == 0 ) start_date = p_buffer->start_date;
/* Run pre-filters. */
aout_FiltersPlay( p_aout, p_input->pp_filters, p_input->i_nb_filters,
&p_buffer );

12
src/libvlc.h
View File

@ -2,7 +2,7 @@
* libvlc.h: main libvlc header
*****************************************************************************
* Copyright (C) 1998-2002 VideoLAN
* $Id: libvlc.h,v 1.79 2003/08/17 20:58:45 alexis Exp $
* $Id: libvlc.h,v 1.80 2003/08/18 13:16:43 zorglub Exp $
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
* Samuel Hocevar <sam@zoy.org>
@ -139,6 +139,11 @@ static char *ppsz_language[] = { "auto", "en", "en_GB", "de", "fr", "it",
"This option allows you to use the S/PDIF audio output by default when " \
"your hardware supports it as well as the audio stream being played.")
#define AUDIO_FILTER_TEXT N_("Audio filters")
#define AUDIO_FILTER_LONGTEXT N_( \
"This allows you to add audio postprocessing filters, to modify" \
"the sound.")
#define HEADPHONE_TEXT N_("Headphone virtual spatialization effect")
#define HEADPHONE_LONGTEXT N_( \
"This effect gives you the feeling that you are standing in a room " \
@ -148,6 +153,7 @@ static char *ppsz_language[] = { "auto", "en", "en_GB", "de", "fr", "it",
"long periods of time.\nIt works with any source format from mono " \
"to 5.1.")
#define VOUT_TEXT N_("Video output module")
#define VOUT_LONGTEXT N_( \
"This option allows you to select the video output method used by VLC. " \
@ -524,7 +530,9 @@ vlc_module_begin();
add_integer( "desync", 0, NULL, DESYNC_TEXT, DESYNC_LONGTEXT, VLC_TRUE );
add_bool( "spdif", 0, NULL, SPDIF_TEXT, SPDIF_LONGTEXT, VLC_FALSE );
add_bool( "headphone-opt", 0, NULL, HEADPHONE_TEXT, HEADPHONE_LONGTEXT, VLC_FALSE );
add_string("audio-filter",0,NULL,AUDIO_FILTER_TEXT,
AUDIO_FILTER_LONGTEXT,VLC_FALSE);
/* Video options */
add_category_hint( N_("Video"), NULL, VLC_FALSE );
add_module_with_short( "vout", 'V', "video output", NULL, NULL,