+++ /dev/null
-/*****************************************************************************
- * csri.c : Load CSRI subtitle renderer
- *****************************************************************************
- * Copyright (C) 2007 the VideoLAN team
- * $Id$
- *
- * Authors: David Lamparter <equinox@videolan.org>
- *
- * 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
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
-
-/*****************************************************************************
- * Preamble
- *****************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <string.h>
-#include <math.h>
-
-#include <vlc_common.h>
-#include <vlc_plugin.h>
-#include <vlc_codec.h>
-#include <vlc_osd.h>
-#include <vlc_input.h>
-
-#include <csri/csri.h>
-#include <csri/stream.h>
-
-/*****************************************************************************
- * Module descriptor
- *****************************************************************************/
-static int Create ( vlc_object_t * );
-static void Destroy( vlc_object_t * );
-
-vlc_module_begin ()
- set_shortname( N_("Subtitles (advanced)"))
- set_description( N_("Wrapper for subtitle renderers using CSRI/asa") )
- set_capability( "decoder", 60 )
- set_category( CAT_INPUT )
- set_subcategory( SUBCAT_INPUT_SCODEC )
- set_callbacks( Create, Destroy )
-vlc_module_end ()
-
-/*****************************************************************************
- * Local prototypes
- *****************************************************************************/
-static subpicture_t *DecodeBlock( decoder_t *, block_t ** );
-static void DestroySubpicture( subpicture_t * );
-static void UpdateRegions( spu_t *, subpicture_t *,
- const video_format_t *, mtime_t );
-
-/*****************************************************************************
- * decoder_sys_t: decoder data
- *****************************************************************************/
-struct decoder_sys_t
-{
- video_format_t fmt_cached;
- csri_inst *p_instance;
-
- struct csri_stream_ext *p_stream_ext;
-
- void (*pf_push_packet)(csri_inst *inst, const void *packet,
- size_t packetlen, double pts_start,
- double pts_end);
- mtime_t i_max_stop;
-};
-
-struct subpicture_sys_t
-{
- decoder_t *p_dec;
- void *p_subs_data;
- int i_subs_len;
- mtime_t i_pts;
-};
-
-/*****************************************************************************
- * Create: Open CSRI renderer
- *****************************************************************************
- * Comment me.
- *****************************************************************************/
-static int Create( vlc_object_t *p_this )
-{
- decoder_t *p_dec = (decoder_t *)p_this;
- decoder_sys_t *p_sys;
- csri_rend *p_render;
- struct csri_stream_ext *p_stream_ext;
-
- if( p_dec->fmt_in.i_codec != VLC_CODEC_SSA )
- return VLC_EGENERIC;
-
- p_render = csri_renderer_default();
- if (!p_render)
- {
- msg_Err( p_dec, "can't load csri renderer" );
- return VLC_EGENERIC;
- }
- p_stream_ext = csri_query_ext(p_render, CSRI_EXT_STREAM_ASS);
- if (!p_stream_ext)
- {
- msg_Err( p_dec, "csri renderer does not support ASS streaming" );
- return VLC_EGENERIC;
- }
-
- p_dec->pf_decode_sub = DecodeBlock;
-
- p_dec->p_sys = p_sys = calloc( 1, sizeof( decoder_sys_t ) );
- if( !p_sys )
- return VLC_ENOMEM;
-
- p_sys->p_stream_ext = p_stream_ext;
- p_sys->pf_push_packet = p_stream_ext->push_packet;
- p_sys->p_instance = p_stream_ext->init_stream( p_render,
- p_dec->fmt_in.p_extra,
- p_dec->fmt_in.p_extra ? strnlen( p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra ) : 0,
- NULL);
- p_sys->i_max_stop = VLC_TS_INVALID;
-
- p_dec->fmt_out.i_cat = SPU_ES;
- p_dec->fmt_out.i_codec = VLC_CODEC_RGBA;
-
-
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * Destroy: finish
- *****************************************************************************
- * Comment me.
- *****************************************************************************/
-static void Destroy( vlc_object_t *p_this )
-{
- decoder_t *p_dec = (decoder_t *)p_this;
- decoder_sys_t *p_sys = p_dec->p_sys;
-
- if( p_sys->p_stream_ext->discard )
- p_sys->p_stream_ext->discard( p_sys->p_instance, true );
- free( p_sys );
-}
-
-/****************************************************************************
- * DecodeBlock: the whole thing
- ****************************************************************************
- * This function must be fed with complete subtitles units.
- ****************************************************************************/
-static subpicture_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
-{
- decoder_sys_t *p_sys = p_dec->p_sys;
-
- subpicture_t *p_spu = NULL;
- block_t *p_block;
-
- //msg_Dbg( p_dec, "DecodeBlock %p", (void *)pp_block);
- if( !pp_block || *pp_block == NULL )
- return NULL;
-
- p_block = *pp_block;
- if( p_block->i_flags & (BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED) )
- {
- p_sys->i_max_stop = VLC_TS_INVALID;
- block_Release( p_block );
- return NULL;
- }
- *pp_block = NULL;
-
- if( p_block->i_buffer == 0 || p_block->p_buffer[0] == '\0' )
- {
- block_Release( p_block );
- return NULL;
- }
-
- p_spu = decoder_NewSubpicture( p_dec );
- if( !p_spu )
- {
- msg_Warn( p_dec, "can't get spu buffer" );
- block_Release( p_block );
- return NULL;
- }
-
- p_spu->p_sys = malloc( sizeof( subpicture_sys_t ));
- if( !p_spu->p_sys )
- {
- decoder_DeleteSubpicture( p_dec, p_spu );
- block_Release( p_block );
- return NULL;
- }
- p_spu->p_sys->p_dec = p_dec;
-
- p_spu->p_sys->i_subs_len = p_block->i_buffer;
- p_spu->p_sys->p_subs_data = malloc( p_block->i_buffer );
- if( !p_spu->p_sys->p_subs_data )
- {
- free( p_spu->p_sys );
- decoder_DeleteSubpicture( p_dec, p_spu );
- block_Release( p_block );
- return NULL;
- }
- memcpy( p_spu->p_sys->p_subs_data, p_block->p_buffer,
- p_block->i_buffer );
- p_spu->p_sys->i_pts = p_block->i_pts;
-
- p_spu->i_start = p_block->i_pts;
- p_spu->i_stop = __MAX( p_sys->i_max_stop, p_block->i_pts + p_block->i_length );
- p_spu->b_ephemer = true;
- p_spu->b_absolute = true;
-
- p_sys->i_max_stop = p_spu->i_stop;
-
- //msg_Dbg( p_dec, "BS %lf..%lf", p_spu->i_start * 0.000001, p_spu->i_stop * 0.000001);
- p_sys->pf_push_packet( p_sys->p_instance,
- p_spu->p_sys->p_subs_data, p_spu->p_sys->i_subs_len,
- p_block->i_pts * 0.000001,
- (p_block->i_pts + p_block->i_length) * 0.000001);
-
- p_spu->pf_update_regions = UpdateRegions;
- p_spu->pf_destroy = DestroySubpicture;
-
- block_Release( p_block );
-
- return p_spu;
-}
-
-static void DestroySubpicture( subpicture_t *p_subpic )
-{
- //msg_Dbg( p_subpic->p_sys->p_dec, "drop spu %p", (void *)p_subpic );
- free( p_subpic->p_sys->p_subs_data );
- free( p_subpic->p_sys );
-}
-
-static void UpdateRegions( spu_t *p_spu, subpicture_t *p_subpic,
- const video_format_t *p_fmt, mtime_t i_ts )
-{
- decoder_t *p_dec = p_subpic->p_sys->p_dec;
- decoder_sys_t *p_sys = p_dec->p_sys;
-
- subpicture_region_t *p_spu_region;
- video_format_t fmt;
-
- /* TODO maybe checking if we really need redrawing */
- subpicture_region_ChainDelete( p_subpic->p_region );
- p_subpic->p_region = NULL;
-
-#if 0
- msg_Warn( p_dec, "---- fmt: %dx%d %dx%d chroma=%4.4s",
- p_fmt->i_width, p_fmt->i_height,
- p_fmt->i_visible_width, p_fmt->i_visible_height,
- (const char*)&p_fmt->i_chroma );
-#endif
- /* XXX On x86 at least our RGBA is mapped to their BGRA
- * TODO confirm that is the same on big endian cpu */
- fmt = *p_fmt;
- fmt.i_chroma = VLC_CODEC_RGBA;
- fmt.i_width = fmt.i_visible_width;
- fmt.i_height = fmt.i_visible_height;
- fmt.i_bits_per_pixel = 0;
- fmt.i_x_offset = fmt.i_y_offset = 0;
- fmt.i_sar_num = 1;
- fmt.i_sar_den = 1;
-
- if( memcmp(&fmt, &p_sys->fmt_cached, sizeof(fmt)) )
- {
- //msg_Warn( p_dec, "---- fmt: new %dx%d", fmt.i_width, fmt.i_height );
-
- struct csri_fmt csri_fmt;
- memset(&csri_fmt, 0, sizeof(csri_fmt));
- csri_fmt.pixfmt = CSRI_F_BGRA;
- csri_fmt.width = fmt.i_width;
- csri_fmt.height = fmt.i_height;
- if( csri_request_fmt( p_sys->p_instance, &csri_fmt ) )
- msg_Dbg( p_dec, "csri error: format not supported" );
-
- p_sys->fmt_cached = fmt;
- }
-
- p_subpic->i_original_picture_height = fmt.i_height;
- p_subpic->i_original_picture_width = fmt.i_width;
-
- p_spu_region = p_subpic->p_region = subpicture_region_New( &fmt );
-
- if( p_spu_region )
- {
- struct csri_frame csri_frame;
-
- /* */
- p_spu_region->i_align = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_LEFT;
- memset( p_spu_region->p_picture->Y_PIXELS, 0x00, p_spu_region->p_picture->Y_PITCH * p_sys->fmt_cached.i_height );
-
- /* */
- const mtime_t i_stream_date = p_subpic->p_sys->i_pts + (i_ts - p_subpic->i_start);
-
- //msg_Dbg( p_dec, "TS %lf", ts * 0.000001 );
- memset( &csri_frame, 0, sizeof(csri_frame) );
- csri_frame.pixfmt = CSRI_F_BGRA;
- csri_frame.planes[0] = (unsigned char*)p_spu_region->p_picture->Y_PIXELS;
- csri_frame.strides[0] = p_spu_region->p_picture->Y_PITCH;
- csri_render( p_sys->p_instance, &csri_frame, i_stream_date * 0.000001 );
- }
-}
-
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