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vlc-gpu
Commit 5a896a3e authored by Jean-Paul Saman's avatar Jean-Paul Saman
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make positioning of subpictures posible in dvbsub

parent fafb8f9d
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Showing with 158 additions and 32 deletions
modules/codec/dvbsub.c
View file @ 5a896a3e
......@@ -3,12 +3,13 @@
* DVB subtitles encoder (developed for Anevia, www.anevia.com)
*****************************************************************************
* Copyright (C) 2003 ANEVIA
* Copyright (C) 2003-2005 the VideoLAN team
* Copyright (C) 2003-2005 VideoLAN (Centrale Réseaux) and its contributors
* $Id$
*
* Authors: Gildas Bazin <gbazin@videolan.org>
* Damien LUCAS <damien.lucas@anevia.com>
* Laurent Aimar <fenrir@via.ecp.fr>
* Jean-Paul Saman <jpsaman #_at_# m2x dot nl>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
......@@ -39,7 +40,35 @@
#include "vlc_bits.h"
//#define DEBUG_DVBSUB 1
/* #define DEBUG_DVBSUB 1 */
#define POSX_TEXT N_("X coordinate of the subpicture")
#define POSX_LONGTEXT N_("You can reposition the subpicture by providing another value here." )
#define POSY_TEXT N_("Y coordinate of the subpicture")
#define POSY_LONGTEXT N_("You can reposition the subpicture by providing another value here." )
#define POS_TEXT N_("Subpicture position")
#define POS_LONGTEXT N_( \
"You can enforce the subpicture position on the video " \
"(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \
"also use combinations of these values).")
#define ENC_POSX_TEXT N_("X coordinate of the encoded subpicture")
#define ENC_POSX_LONGTEXT N_("You can reposition the subpicture by providing another value here." )
#define ENC_POSY_TEXT N_("Y coordinate of encoded the subpicture")
#define ENC_POSY_LONGTEXT N_("You can reposition the subpicture by providing another value here." )
#define TIMEOUT_TEXT N_("Timeout of subpictures")
#define TIMEOUT_LONGTEXT N_( \
"Subpictures get a default timeout of 15 seconds added to their remaining time." \
"This will ensure that they are at least the specified time visible.")
static int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
static char *ppsz_pos_descriptions[] =
{ N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
/*****************************************************************************
* Module descriptor.
......@@ -53,17 +82,27 @@ static void CloseEncoder( vlc_object_t * );
static block_t *Encode ( encoder_t *, subpicture_t * );
vlc_module_begin();
# define DVBSUB_CFG_PREFIX "dvbsub-"
set_description( _("DVB subtitles decoder") );
set_capability( "decoder", 50 );
set_category( CAT_INPUT );
set_subcategory( SUBCAT_INPUT_SCODEC );
set_callbacks( Open, Close );
add_integer( DVBSUB_CFG_PREFIX "position", 8, NULL, POS_TEXT, POS_LONGTEXT, VLC_TRUE );
change_integer_list( pi_pos_values, ppsz_pos_descriptions, 0 );
add_integer( DVBSUB_CFG_PREFIX "x", -1, NULL, POSX_TEXT, POSX_LONGTEXT, VLC_FALSE );
add_integer( DVBSUB_CFG_PREFIX "y", -1, NULL, POSY_TEXT, POSY_LONGTEXT, VLC_FALSE );
# define ENC_CFG_PREFIX "sout-dvbsub-"
add_submodule();
set_description( _("DVB subtitles encoder") );
set_capability( "encoder", 100 );
set_callbacks( OpenEncoder, CloseEncoder );
add_integer( ENC_CFG_PREFIX "x", -1, NULL, ENC_POSX_TEXT, ENC_POSX_LONGTEXT, VLC_FALSE );
add_integer( ENC_CFG_PREFIX "y", -1, NULL, ENC_POSY_TEXT, ENC_POSY_LONGTEXT, VLC_FALSE );
add_integer( ENC_CFG_PREFIX "timeout", 15, NULL, TIMEOUT_TEXT, TIMEOUT_LONGTEXT, VLC_FALSE );
vlc_module_end();
static const char *ppsz_enc_options[] = { NULL };
......@@ -146,7 +185,7 @@ typedef struct dvbsub_regiondef_s
typedef struct
{
int i_id;
int i_timeout;
int i_timeout; /* in seconds */
int i_state;
int i_version;
......@@ -164,6 +203,11 @@ struct decoder_sys_t
int i_ancillary_id;
mtime_t i_pts;
vlc_bool_t b_absolute;
int i_spu_position;
int i_spu_x;
int i_spu_y;
vlc_bool_t b_page;
dvbsub_page_t *p_page;
dvbsub_region_t *p_regions;
......@@ -223,6 +267,8 @@ static int Open( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t *) p_this;
decoder_sys_t *p_sys;
vlc_value_t val;
int posx, posy;
if( p_dec->fmt_in.i_codec != VLC_FOURCC('d','v','b','s') )
{
......@@ -233,7 +279,7 @@ static int Open( vlc_object_t *p_this )
p_sys = p_dec->p_sys = malloc( sizeof(decoder_sys_t) );
memset( p_sys, 0, sizeof(decoder_sys_t) );
p_sys->i_pts = 0;
p_sys->i_pts = (mtime_t) 0;
p_sys->i_id = p_dec->fmt_in.subs.dvb.i_id & 0xFFFF;
p_sys->i_ancillary_id = p_dec->fmt_in.subs.dvb.i_id >> 16;
......@@ -241,6 +287,36 @@ static int Open( vlc_object_t *p_this )
p_sys->p_cluts = NULL;
p_sys->p_page = NULL;
var_Create( p_this, DVBSUB_CFG_PREFIX "position", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Get( p_this, DVBSUB_CFG_PREFIX "position", &val );
p_sys->i_spu_position = val.i_int;
var_Create( p_this, DVBSUB_CFG_PREFIX "x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Get( p_this, DVBSUB_CFG_PREFIX "x", &val );
posx = val.i_int;
var_Create( p_this, DVBSUB_CFG_PREFIX "y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Get( p_this, DVBSUB_CFG_PREFIX "y", &val );
posy = val.i_int;
/* Check if subpicture position was overridden */
p_sys->b_absolute = VLC_TRUE;
if( posx < 0 || posy < 0)
{
p_sys->b_absolute = VLC_FALSE;
p_sys->i_spu_x = 0;
p_sys->i_spu_y = 0;
}
else if( posx >= 0 || posy >= 0 )
{
p_sys->i_spu_x = posx;
p_sys->i_spu_y = posy;
}
else if( p_sys->i_spu_x < 0 || p_sys->i_spu_y < 0 )
{
p_sys->b_absolute = VLC_FALSE;
p_sys->i_spu_x = 0;
p_sys->i_spu_y = 0;
}
es_format_Init( &p_dec->fmt_out, SPU_ES, VLC_FOURCC( 'd','v','b','s' ) );
default_clut_init( p_dec );
......@@ -256,6 +332,10 @@ static void Close( vlc_object_t *p_this )
decoder_t *p_dec = (decoder_t*) p_this;
decoder_sys_t *p_sys = p_dec->p_sys;
var_Destroy( p_this, DVBSUB_CFG_PREFIX "x" );
var_Destroy( p_this, DVBSUB_CFG_PREFIX "y" );
var_Destroy( p_this, DVBSUB_CFG_PREFIX "position" );
free_all( p_dec );
free( p_sys );
}
......@@ -387,7 +467,7 @@ static void default_clut_init( decoder_t *p_dec )
p_sys->default_clut.c_4b[i].T = T;
}
/* 256 entries CLUT (TODO) */
/* 256 entries CLUT */
memset( p_sys->default_clut.c_8b, 0xFF, 256 * sizeof(dvbsub_color_t) );
}
......@@ -566,7 +646,6 @@ static void decode_clut( decoder_t *p_dec, bs_t *s )
/* We are not entirely compliant here as full transparency is indicated
* with a luma value of zero, not a transparency value of 0xff
* (full transparency would actually be 0xff + 1). */
if( y == 0 )
{
cr = cb = 0;
......@@ -576,7 +655,6 @@ static void decode_clut( decoder_t *p_dec, bs_t *s )
/* According to EN 300-743 section 7.2.3 note 1, type should
* not have more than 1 bit set to one, but some streams don't
* respect this note. */
if( i_type & 0x04 && i_id < 4 )
{
p_clut->c_2b[i_id].Y = y;
......@@ -628,7 +706,8 @@ static void decode_page_composition( decoder_t *p_dec, bs_t *s )
/* Not a full PCS, we need to wait for one */
msg_Dbg( p_dec, "didn't receive an acquisition page yet" );
#if 0 /* Try to start decoding even without an acquisition page */
#if 0
/* Try to start decoding even without an acquisition page */
bs_skip( s, 8 * (i_segment_length - 2) );
return;
#endif
......@@ -837,6 +916,9 @@ static void decode_object( decoder_t *p_dec, bs_t *s )
int i_segment_length, i_coding_method, i_version, i_id, i;
vlc_bool_t b_non_modify_color;
/* ETSI 300-743 paragraph 7.2.4
* sync_byte, segment_type and page_id have already been processed.
*/
i_segment_length = bs_read( s, 16 );
i_id = bs_read( s, 16 );
i_version = bs_read( s, 4 );
......@@ -844,7 +926,7 @@ static void decode_object( decoder_t *p_dec, bs_t *s )
if( i_coding_method > 1 )
{
msg_Dbg( p_dec, "DVB subtitling method is not handled!" );
msg_Dbg( p_dec, "Unknown DVB subtitling coding %d is not handled!", i_coding_method );
bs_skip( s, 8 * (i_segment_length - 2) - 6 );
return;
}
......@@ -1382,8 +1464,15 @@ static subpicture_t *render( decoder_t *p_dec )
/* Set the pf_render callback */
p_spu->i_start = p_sys->i_pts;
p_spu->i_stop = p_spu->i_start + i_timeout * 1000000;
p_spu->i_stop = p_spu->i_start + (mtime_t) (i_timeout * 1000000);
p_spu->b_ephemer = VLC_TRUE;
p_spu->b_fade = VLC_TRUE;
/* Correct positioning of SPU */
p_spu->b_absolute = p_sys->b_absolute;
p_spu->i_flags = p_sys->i_spu_position;
p_spu->i_x = p_sys->i_spu_x;
p_spu->i_y = p_sys->i_spu_y;
return p_spu;
}
......@@ -1408,6 +1497,11 @@ struct encoder_sys_t
encoder_region_t *p_regions;
mtime_t i_pts;
/* subpicture positioning */
int i_offset_x;
int i_offset_y;
int i_timeout_delay;
};
static void encode_page_composition( encoder_t *, bs_t *, subpicture_t * );
......@@ -1422,6 +1516,7 @@ static int OpenEncoder( vlc_object_t *p_this )
{
encoder_t *p_enc = (encoder_t *)p_this;
encoder_sys_t *p_sys;
vlc_value_t val;
if( p_enc->fmt_out.i_codec != VLC_FOURCC('d','v','b','s') &&
!p_enc->b_force )
......@@ -1449,6 +1544,16 @@ static int OpenEncoder( vlc_object_t *p_this )
p_sys->i_regions = 0;
p_sys->p_regions = 0;
var_Create( p_this, ENC_CFG_PREFIX "x", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Get( p_this, ENC_CFG_PREFIX "x", &val );
p_sys->i_offset_x = val.i_int;
var_Create( p_this, ENC_CFG_PREFIX "y", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Get( p_this, ENC_CFG_PREFIX "y", &val );
p_sys->i_offset_y = val.i_int;
var_Create( p_this, ENC_CFG_PREFIX "timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Get( p_this, ENC_CFG_PREFIX "timeout", &val );
p_sys->i_timeout_delay = val.i_int;
return VLC_SUCCESS;
}
......@@ -1462,8 +1567,9 @@ static block_t *Encode( encoder_t *p_enc, subpicture_t *p_subpic )
if( !p_subpic || !p_subpic->p_region ) return 0;
#if DEBUG_DVBSUB
msg_Dbg( p_enc, "encoding subpicture" );
#endif
p_block = block_New( p_enc, 64000 );
bs_init( s, p_block->p_buffer, p_block->i_buffer );
......@@ -1481,7 +1587,7 @@ static block_t *Encode( encoder_t *p_enc, subpicture_t *p_subpic )
bs_write( s, 16, 1 ); /* Page id */
bs_write( s, 16, 0 ); /* Segment length */
bs_write( s, 8, 0xff ); /* End marker */
bs_write( s, 8, 0xff );/* End marker */
p_block->i_buffer = bs_pos( s ) / 8;
p_block->i_pts = p_block->i_dts = p_subpic->i_start;
if( !p_subpic->b_ephemer && p_subpic->i_stop > p_subpic->i_start )
......@@ -1500,15 +1606,15 @@ static block_t *Encode( encoder_t *p_enc, subpicture_t *p_subpic )
bs_write( s, 8, DVBSUB_ST_ENDOFDISPLAY ); /* Segment type */
bs_write( s, 16, 1 ); /* Page id */
bs_write( s, 16, 0 ); /* Segment length */
bs_write( s, 8, 0xff ); /* End marker */
bs_write( s, 8, 0xff );/* End marker */
p_block_stop->i_buffer = bs_pos( s ) / 8;
p_block_stop->i_pts = p_block_stop->i_dts = p_subpic->i_stop;
block_ChainAppend( &p_block, p_block_stop );
p_block_stop->i_length = 100000;//p_subpic->i_stop - p_subpic->i_start;
p_block_stop->i_length = 100000; /* p_subpic->i_stop - p_subpic->i_start; */
}
#ifdef DEBUG_DVBSUB
msg_Dbg( p_enc, "subpicture encoded properly" );
#endif
return p_block;
}
......@@ -1520,6 +1626,10 @@ static void CloseEncoder( vlc_object_t *p_this )
encoder_t *p_enc = (encoder_t *)p_this;
encoder_sys_t *p_sys = p_enc->p_sys;
var_Destroy( p_this , ENC_CFG_PREFIX "x" );
var_Destroy( p_this , ENC_CFG_PREFIX "y" );
var_Destroy( p_this , ENC_CFG_PREFIX "timeout" );
if( p_sys->i_regions ) free( p_sys->p_regions );
free( p_sys );
}
......@@ -1580,7 +1690,7 @@ static void encode_page_composition( encoder_t *p_enc, bs_t *s,
i_timeout = (p_subpic->i_stop - p_subpic->i_start) / 1000000;
}
bs_write( s, 8, i_timeout + 15 ); /* Timeout */
bs_write( s, 8, i_timeout + p_sys->i_timeout_delay ); /* Timeout */
bs_write( s, 4, p_sys->i_page_ver++ );
bs_write( s, 2, b_mode_change ?
DVBSUB_PCS_STATE_CHANGE : DVBSUB_PCS_STATE_ACQUISITION );
......@@ -1591,9 +1701,17 @@ static void encode_page_composition( encoder_t *p_enc, bs_t *s,
{
bs_write( s, 8, i_regions );
bs_write( s, 8, 0 ); /* Reserved */
if( (p_sys->i_offset_x > 0) && (p_sys->i_offset_y > 0) )
{
bs_write( s, 16, p_sys->i_offset_x ); /* override x position */
bs_write( s, 16, p_sys->i_offset_y ); /* override y position */
}
else
{
bs_write( s, 16, p_region->i_x );
bs_write( s, 16, p_region->i_y );
}
}
}
static void encode_clut( encoder_t *p_enc, bs_t *s, subpicture_t *p_subpic )
......@@ -1666,6 +1784,12 @@ static void encode_region_composition( encoder_t *p_enc, bs_t *s,
{
video_palette_t *p_pal = p_region->fmt.p_palette;
if( !p_pal )
{
msg_Err( p_enc, "subpicture has no palette - ignoring it" );
break;
}
i_entries = p_pal->i_entries;
i_depth = i_entries == 4 ? 0x1 : i_entries == 16 ? 0x2 : 0x3;
......@@ -1701,9 +1825,9 @@ static void encode_region_composition( encoder_t *p_enc, bs_t *s,
bs_write( s, 16, i_region );
bs_write( s, 2, b_text ? DVBSUB_OT_BASIC_CHAR:DVBSUB_OT_BASIC_BITMAP );
bs_write( s, 2, 0 ); /* object provider flag */
bs_write( s, 12, 0 ); /* object horizontal position */
bs_write( s, 12, 0 );/* object horizontal position */
bs_write( s, 4, 0 ); /* Reserved */
bs_write( s, 12, 0 ); /* object vertical position */
bs_write( s, 12, 0 );/* object vertical position */
if( b_text )
{
......@@ -1746,6 +1870,9 @@ static void encode_object( encoder_t *p_enc, bs_t *s, subpicture_t *p_subpic )
case VLC_FOURCC( 'T','E','X','T' ):
bs_write( s, 2, 1 );
break;
default:
msg_Err( p_enc, "FOURCC %d not supported by encoder.", p_region->fmt.i_chroma );
continue;
}
bs_write( s, 1, 0 ); /* non modifying color flag */
......@@ -1772,7 +1899,6 @@ static void encode_object( encoder_t *p_enc, bs_t *s, subpicture_t *p_subpic )
}
/* Coding of a bitmap object */
i_update_pos = bs_pos( s );
bs_write( s, 16, 0 ); /* topfield data block length */
bs_write( s, 16, 0 ); /* bottomfield data block length */
......
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