diff options
Diffstat (limited to 'src/libspudvb/xine_spudvb_decoder.c')
| -rw-r--r-- | src/libspudvb/xine_spudvb_decoder.c | 992 |
1 files changed, 0 insertions, 992 deletions
diff --git a/src/libspudvb/xine_spudvb_decoder.c b/src/libspudvb/xine_spudvb_decoder.c deleted file mode 100644 index 1ab52b7e7..000000000 --- a/src/libspudvb/xine_spudvb_decoder.c +++ /dev/null @@ -1,992 +0,0 @@ -/* - * Copyright (C) 2008 the xine project - * - * This file is part of xine, a free video player. - * - * xine 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. - * - * xine 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, USA - * - * DVB Subtitle decoder (ETS 300 743) - * (c) 2004 Mike Lampard <mlampard@users.sourceforge.net> - * based on the application dvbsub by Dave Chapman - * - * TODO: - * - Implement support for teletext based subtitles - */ - -#include <pthread.h> -#include <errno.h> - -#include "xine_internal.h" -#include "bswap.h" -#include "osd.h" -#define MAX_REGIONS 7 - -/*#define LOG 1*/ - -typedef struct { - int x, y; - unsigned char is_visible; -} visible_region_t; - -typedef struct { - int page_time_out; - int page_version_number; - int page_state; - int page_id; - visible_region_t regions[MAX_REGIONS]; -} page_t; - -typedef struct { - int version_number; - int width, height; - int empty; - int depth; - int CLUT_id; - int objects_start; - int objects_end; - unsigned int object_pos[65536]; - unsigned char *img; - osd_object_t *osd; -} region_t; - -typedef struct { -/* dvbsub stuff */ - int x; - int y; - unsigned int curr_obj; - unsigned int curr_reg[64]; - uint8_t *buf; - int i; - int nibble_flag; - int in_scanline; - page_t page; - region_t regions[MAX_REGIONS]; - clut_t colours[MAX_REGIONS*256]; - unsigned char trans[MAX_REGIONS*256]; -} dvbsub_func_t; - -typedef struct dvb_spu_class_s { - spu_decoder_class_t class; - xine_t *xine; - - int ignore_pts; -} dvb_spu_class_t; - -typedef struct dvb_spu_decoder_s { - spu_decoder_t spu_decoder; - - dvb_spu_class_t *class; - xine_stream_t *stream; - - spu_dvb_descriptor_t *spu_descriptor; - - /* dvbsub_osd_mutex should be locked around all calls to this->osd_renderer->show() - and this->osd_renderer->hide() */ - pthread_mutex_t dvbsub_osd_mutex; - - char *pes_pkt; - char *pes_pkt_wrptr; - unsigned int pes_pkt_size; - - int64_t vpts; - int64_t end_vpts; - - pthread_t dvbsub_timer_thread; - struct timespec dvbsub_hide_timeout; - pthread_cond_t dvbsub_restart_timeout; - dvbsub_func_t *dvbsub; - int show; -} dvb_spu_decoder_t; - - -static void update_osd(dvb_spu_decoder_t *this, int region_id) -{ - dvbsub_func_t *dvbsub = this->dvbsub; - region_t *reg = &dvbsub->regions[region_id]; - - if ( !reg->img ) { - if ( reg->osd ) { - pthread_mutex_lock( &this->dvbsub_osd_mutex ); - this->stream->osd_renderer->free_object( reg->osd ); - reg->osd = NULL; - pthread_mutex_unlock( &this->dvbsub_osd_mutex ); - } - return; - } - - if ( reg->osd ) { - if ( reg->width!=reg->osd->width || reg->height!=reg->osd->height ) { - pthread_mutex_lock( &this->dvbsub_osd_mutex ); - this->stream->osd_renderer->free_object( reg->osd ); - reg->osd = NULL; - pthread_mutex_unlock( &this->dvbsub_osd_mutex ); - } - } - - if ( !reg->osd ) - reg->osd = this->stream->osd_renderer->new_object( this->stream->osd_renderer, reg->width, reg->height ); -} - -static void update_region (dvb_spu_decoder_t * this, int region_id, int region_width, int region_height, int fill, int fill_color) -{ - - dvbsub_func_t *dvbsub = this->dvbsub; - region_t *reg = &dvbsub->regions[region_id]; - - /* reject invalid sizes and set some limits ! */ - if ( region_width<=0 || region_height<=0 || region_width>1920 || region_height>1080 ) { - free( reg->img ); - reg->img = NULL; -#ifdef LOG - printf("SPUDVB: rejected region %d = %dx%d\n", region_id, region_width, region_height ); -#endif - return; - } - - if ( (reg->width*reg->height) < (region_width*region_height) ) { -#ifdef LOG - printf("SPUDVB: update size of region %d = %dx%d\n", region_id, region_width, region_height); -#endif - free( reg->img ); - reg->img = NULL; - } - - if ( !reg->img ) { - if ( !(reg->img=malloc(region_width*region_height)) ) { - lprintf( "can't allocate mem for region %d\n", region_id ); - return; - } - fill = 1; - } - - if ( fill ) { - memset( reg->img, fill_color, region_width*region_height ); - reg->empty = 1; -#ifdef LOG - printf("SPUDVB : FILL REGION %d\n", region_id); -#endif - } - reg->width = region_width; - reg->height = region_height; -} - - -static void do_plot (dvb_spu_decoder_t * this, int r, int x, int y, unsigned char pixel) -{ - dvbsub_func_t *const dvbsub = this->dvbsub; - - const int i = (y * dvbsub->regions[r].width) + x; - /* do some clipping */ - if ( i<(dvbsub->regions[r].width*dvbsub->regions[r].height) ) { - dvbsub->regions[r].img[i] = pixel; - dvbsub->regions[r].empty = 0; - } -} - -static void plot (dvb_spu_decoder_t * this, int r, int run_length, unsigned char pixel) -{ - - dvbsub_func_t *dvbsub = this->dvbsub; - - const int x2 = dvbsub->x + run_length; - - while (dvbsub->x < x2) { - do_plot (this, r, dvbsub->x, dvbsub->y, pixel); - dvbsub->x++; - } -} - -static uint8_t next_nibble (dvb_spu_decoder_t * this) -{ - dvbsub_func_t *dvbsub = this->dvbsub; - - dvbsub->nibble_flag = !dvbsub->nibble_flag; - - if (dvbsub->nibble_flag) /* Inverted! */ - return (dvbsub->buf[dvbsub->i] & 0xf0) >> 4; - else - return (dvbsub->buf[dvbsub->i++] & 0x0f); -} - -static void decode_4bit_pixel_code_string (dvb_spu_decoder_t * this, int r, int object_id, int ofs, int n) -{ - dvbsub_func_t *const dvbsub = this->dvbsub; - - if (dvbsub->in_scanline == 0) { - dvbsub->in_scanline = 1; - } - dvbsub->nibble_flag = 0; - const int j = dvbsub->i + n; - while (dvbsub->i < j) { - - int bits = 0; - const uint8_t next_bits = next_nibble (this); - - if (next_bits != 0) { - const uint8_t pixel_code = next_bits; - plot (this, r, 1, pixel_code); - bits += 4; - } - else { - bits += 4; - const uint8_t data = next_nibble (this); - const uint8_t switch_1 = (data & 0x08) >> 3; - bits++; - if (switch_1 == 0) { - const uint8_t run_length = (data & 0x07); - bits += 3; - if (run_length != 0) { - plot (this, r, run_length + 2, 0); - } - else { - break; - } - } - else { - const uint8_t switch_2 = (data & 0x04) >> 2; - bits++; - if (switch_2 == 0) { - const uint8_t run_length = (data & 0x03); - bits += 2; - const uint8_t pixel_code = next_nibble (this); - bits += 4; - plot (this, r, run_length + 4, pixel_code); - } - else { - const uint8_t switch_3 = (data & 0x03); - bits += 2; - switch (switch_3) { - case 0: - plot (this, r, 1, 0); - break; - case 1: - plot (this, r, 2, 0); - break; - case 2: - { - const uint8_t run_length = next_nibble (this); - bits += 4; - const uint8_t pixel_code = next_nibble (this); - bits += 4; - plot (this, r, run_length + 9, pixel_code); - } - break; - case 3: - { - uint8_t run_length = next_nibble (this); - run_length = (run_length << 4) | next_nibble (this); - bits += 8; - const uint8_t pixel_code = next_nibble (this); - bits += 4; - plot (this, r, run_length + 25, pixel_code); - } - } - } - } - } - - } - if (dvbsub->nibble_flag == 1) { - dvbsub->i++; - dvbsub->nibble_flag = 0; - } -} - - -static void set_clut(dvb_spu_decoder_t *this,int CLUT_id,int CLUT_entry_id,int Y_value, int Cr_value, int Cb_value, int T_value) { - - dvbsub_func_t *dvbsub = this->dvbsub; - - if ((CLUT_id>=MAX_REGIONS) || (CLUT_entry_id>15)) { - return; - } - - dvbsub->colours[(CLUT_id*256)+CLUT_entry_id].y=Y_value; - dvbsub->colours[(CLUT_id*256)+CLUT_entry_id].cr=Cr_value; - dvbsub->colours[(CLUT_id*256)+CLUT_entry_id].cb=Cb_value; - - if (Y_value==0) { - dvbsub->trans[(CLUT_id*256)+CLUT_entry_id]=T_value; - } else { - dvbsub->trans[(CLUT_id*256)+CLUT_entry_id]=255; - } - -} - -static void process_CLUT_definition_segment(dvb_spu_decoder_t *this) { - dvbsub_func_t *dvbsub = this->dvbsub; - - /* - const uint16_t page_id= _X_BE_16(&dvbsub->buf[dvbsub->i]); - */ - dvbsub->i+=2; - const uint16_t segment_length= _X_BE_16(&dvbsub->buf[dvbsub->i]); - dvbsub->i+=2; - const int j=dvbsub->i+segment_length; - - const uint8_t CLUT_id=dvbsub->buf[dvbsub->i++]; - /* - const uint8_t CLUT_version_number=(dvbsub->buf[dvbsub->i]&0xf0)>>4; - */ - dvbsub->i++; - - while (dvbsub->i < j) { - const uint8_t CLUT_entry_id=dvbsub->buf[dvbsub->i++]; - /* - const uint8_t CLUT_flag_2_bit=(dvbsub->buf[dvbsub->i]&0x80)>>7; - const uint8_t CLUT_flag_4_bit=(dvbsub->buf[dvbsub->i]&0x40)>>6; - const uint8_t CLUT_flag_8_bit=(dvbsub->buf[dvbsub->i]&0x20)>>5; - */ - const uint8_t full_range_flag=dvbsub->buf[dvbsub->i]&1; - dvbsub->i++; - - int Y_value, - Cr_value, - Cb_value, - T_value; - if (full_range_flag==1) { - Y_value=dvbsub->buf[dvbsub->i++]; - Cr_value=dvbsub->buf[dvbsub->i++]; - Cb_value=dvbsub->buf[dvbsub->i++]; - T_value=dvbsub->buf[dvbsub->i++]; - } else { - Y_value = dvbsub->buf[dvbsub->i] & 0xfc; - Cr_value = (dvbsub->buf[dvbsub->i] << 6 | dvbsub->buf[dvbsub->i + 1] >> 2) & 0xf0; - Cb_value = (dvbsub->buf[dvbsub->i + 1] << 2) & 0xf0; - T_value = (dvbsub->buf[dvbsub->i + 1] & 3) * 0x55; /* expand only this one to full range! */ - dvbsub->i+=2; - } - set_clut(this, CLUT_id,CLUT_entry_id,Y_value,Cr_value,Cb_value,T_value); - } -} - -static void process_pixel_data_sub_block (dvb_spu_decoder_t * this, int r, int o, int ofs, int n) -{ - dvbsub_func_t *dvbsub = this->dvbsub; - - const int j = dvbsub->i + n; - - dvbsub->x = (dvbsub->regions[r].object_pos[o]) >> 16; - dvbsub->y = ((dvbsub->regions[r].object_pos[o]) & 0xffff) + ofs; - while (dvbsub->i < j) { - const uint8_t data_type = dvbsub->buf[dvbsub->i++]; - - switch (data_type) { - case 0: - dvbsub->i++; - case 0x11: - decode_4bit_pixel_code_string (this, r, o, ofs, n - 1); - break; - case 0xf0: - dvbsub->in_scanline = 0; - dvbsub->x = (dvbsub->regions[r].object_pos[o]) >> 16; - dvbsub->y += 2; - break; - default: - lprintf ("unimplemented data_type %02x in pixel_data_sub_block\n", data_type); - } - } - - dvbsub->i = j; -} - -static void process_page_composition_segment (dvb_spu_decoder_t * this) -{ - dvbsub_func_t *dvbsub = this->dvbsub; - - dvbsub->page.page_id = _X_BE_16(&dvbsub->buf[dvbsub->i]); - dvbsub->i += 2; - const uint16_t segment_length = _X_BE_16(&dvbsub->buf[dvbsub->i]); - dvbsub->i += 2; - - const int j = dvbsub->i + segment_length; - - dvbsub->page.page_time_out = dvbsub->buf[dvbsub->i++]; - if ( dvbsub->page.page_time_out>6 ) /* some timeout are insane, e.g. 65s ! */ - dvbsub->page.page_time_out = 6; - - int version = (dvbsub->buf[dvbsub->i] & 0xf0) >> 4; - if ( version == dvbsub->page.page_version_number ) - return; - dvbsub->page.page_version_number = version; - dvbsub->page.page_state = (dvbsub->buf[dvbsub->i] & 0x0c) >> 2; - dvbsub->i++; - int r; - for (r=0; r<MAX_REGIONS; r++) { /* reset */ - dvbsub->page.regions[r].is_visible = 0; - } - - while (dvbsub->i < j) { - const uint8_t region_id = dvbsub->buf[dvbsub->i++]; - dvbsub->i++; /* reserved */ - const uint16_t region_x = _X_BE_16(&dvbsub->buf[dvbsub->i]); - dvbsub->i += 2; - const uint16_t region_y = _X_BE_16(&dvbsub->buf[dvbsub->i]); - dvbsub->i += 2; - - dvbsub->page.regions[region_id].x = region_x; - dvbsub->page.regions[region_id].y = region_y; - dvbsub->page.regions[region_id].is_visible = 1; - } -} - - -static void process_region_composition_segment (dvb_spu_decoder_t * this) -{ - dvbsub_func_t *dvbsub = this->dvbsub; - - dvbsub->page.page_id = _X_BE_16(&dvbsub->buf[dvbsub->i]); - dvbsub->i += 2; - const uint16_t segment_length = _X_BE_16(&dvbsub->buf[dvbsub->i]); - dvbsub->i += 2; - const int j = dvbsub->i + segment_length; - - const uint8_t region_id = dvbsub->buf[dvbsub->i++]; - const uint8_t region_version_number = (dvbsub->buf[dvbsub->i] & 0xf0) >> 4; - const uint8_t region_fill_flag = (dvbsub->buf[dvbsub->i] & 0x08) >> 3; - dvbsub->i++; - const uint16_t region_width = _X_BE_16(&dvbsub->buf[dvbsub->i]); - dvbsub->i += 2; - const uint16_t region_height = _X_BE_16(&dvbsub->buf[dvbsub->i]); - dvbsub->i += 2; - /* - const uint8_t region_level_of_compatibility = (dvbsub->buf[dvbsub->i] & 0xe0) >> 5; - const uint8_t region_depth = (dvbsub->buf[dvbsub->i] & 0x1c) >> 2; - */ - dvbsub->i++; - const uint8_t CLUT_id = dvbsub->buf[dvbsub->i++]; - /* - const uint8_t region_8_bit_pixel_code = dvbsub->buf[dvbsub->i]; - */ - dvbsub->i++; - const uint8_t region_4_bit_pixel_code = (dvbsub->buf[dvbsub->i] & 0xf0) >> 4; - /* - const uint8_t region_2_bit_pixel_code = (dvbsub->buf[dvbsub->i] & 0x0c) >> 2; - */ - dvbsub->i++; - - if(region_id>=MAX_REGIONS) - return; - - if ( dvbsub->regions[region_id].version_number == region_version_number ) - return; - - dvbsub->regions[region_id].version_number = region_version_number; - - /* Check if region size has changed and fill background. */ - update_region (this, region_id, region_width, region_height, region_fill_flag, region_4_bit_pixel_code); - if ( CLUT_id<MAX_REGIONS ) - dvbsub->regions[region_id].CLUT_id = CLUT_id; - - dvbsub->regions[region_id].objects_start = dvbsub->i; - dvbsub->regions[region_id].objects_end = j; - - { - int o; - for (o = 0; o < 65536; o++) { - dvbsub->regions[region_id].object_pos[o] = 0xffffffff; - } - } - - while (dvbsub->i < j) { - const uint16_t object_id = _X_BE_16(&dvbsub->buf[dvbsub->i]); - dvbsub->i += 2; - const uint8_t object_type = (dvbsub->buf[dvbsub->i] & 0xc0) >> 6; - /* - const uint8_t object_provider_flag = (dvbsub->buf[dvbsub->i] & 0x30) >> 4; - */ - const uint16_t object_x = ((dvbsub->buf[dvbsub->i] & 0x0f) << 8) | dvbsub->buf[dvbsub->i + 1]; - dvbsub->i += 2; - const uint16_t object_y = ((dvbsub->buf[dvbsub->i] & 0x0f) << 8) | dvbsub->buf[dvbsub->i + 1]; - dvbsub->i += 2; - - dvbsub->regions[region_id].object_pos[object_id] = (object_x << 16) | object_y; - - if ((object_type == 0x01) || (object_type == 0x02)) { - /* - const uint8_t foreground_pixel_code = dvbsub->buf[dvbsub->i]; - const uint8_t background_pixel_code = dvbsub->buf[dvbsub->i+1]; - */ - dvbsub->i += 2; - } - } - -} - -static void process_object_data_segment (dvb_spu_decoder_t * this) -{ - dvbsub_func_t *dvbsub = this->dvbsub; - - dvbsub->page.page_id = (dvbsub->buf[dvbsub->i] << 8) | dvbsub->buf[dvbsub->i + 1]; - dvbsub->i += 2; - /* - const uint16_t segment_length = _X_BE_16(&dvbsub->buf[dvbsub->i]); - */ - dvbsub->i += 2; - - const uint16_t object_id = _X_BE_16(&dvbsub->buf[dvbsub->i]); - dvbsub->i += 2; - dvbsub->curr_obj = object_id; - const uint8_t object_coding_method = (dvbsub->buf[dvbsub->i] & 0x0c) >> 2; - /* - const uint8_t object_version_number = (dvbsub->buf[dvbsub->i] & 0xf0) >> 4; - const uint8_t non_modifying_colour_flag = (dvbsub->buf[dvbsub->i] & 0x02) >> 1; - */ - dvbsub->i++; - - if ( object_coding_method != 0 ) - return; - - const int old_i = dvbsub->i; - int r; - for (r = 0; r < MAX_REGIONS; r++) { - - /* If this object is in this region... */ - if (!dvbsub->regions[r].img) - continue; - - if (dvbsub->regions[r].object_pos[object_id] == 0xffffffff) - continue; - - dvbsub->i = old_i; - - const uint16_t top_field_data_block_length = _X_BE_16(&dvbsub->buf[dvbsub->i]); - dvbsub->i += 2; - const uint16_t bottom_field_data_block_length = _X_BE_16(&dvbsub->buf[dvbsub->i]); - dvbsub->i += 2; - - process_pixel_data_sub_block (this, r, object_id, 0, top_field_data_block_length); - process_pixel_data_sub_block (this, r, object_id, 1, bottom_field_data_block_length); - } -} - -static void unlock_mutex_cancellation_func(void *mutex_gen) -{ - pthread_mutex_t *mutex = (pthread_mutex_t*) mutex_gen; - pthread_mutex_unlock(mutex); -} - -/* Thread routine that checks for subtitle timeout periodically. - To avoid unexpected subtitle hiding, calls to this->stream->osd_renderer->show() - should be in blocks like: - - pthread_mutex_lock(&this->dvbsub_osd_mutex); - this->stream->osd_renderer->show(...); - this->dvbsub_hide_timeout.tv_sec = time(NULL) + timeout value; - pthread_cond_signal(&this->dvbsub_restart_timeout); - pthread_mutex_unlock(&this->dvbsub_osd_mutex); - - This ensures that the timeout is changed with the lock held, and - that the thread is signalled to pick up the new timeout. -*/ -static void* dvbsub_timer_func(void *this_gen) -{ - dvb_spu_decoder_t *this = (dvb_spu_decoder_t *) this_gen; - pthread_mutex_lock(&this->dvbsub_osd_mutex); - - /* If we're cancelled via pthread_cancel, unlock the mutex */ - pthread_cleanup_push(unlock_mutex_cancellation_func, &this->dvbsub_osd_mutex); - - while(1) { - /* Record the current timeout, and wait - note that pthread_cond_timedwait - will unlock the mutex on entry, and lock it on exit */ - struct timespec timeout = this->dvbsub_hide_timeout; - const int result = pthread_cond_timedwait(&this->dvbsub_restart_timeout, - &this->dvbsub_osd_mutex, - &this->dvbsub_hide_timeout); - if(result != ETIMEDOUT || - timeout.tv_sec != this->dvbsub_hide_timeout.tv_sec || - timeout.tv_nsec != this->dvbsub_hide_timeout.tv_nsec) - continue; - - /* We timed out, and no-one changed the timeout underneath us. - Hide the OSD, then wait until we're signalled. */ - if(this && this->stream && this->stream->osd_renderer) { - int i; - for ( i=0; i<MAX_REGIONS; i++ ) { - if ( !this->dvbsub->regions[i].osd ) - continue; - - this->stream->osd_renderer->hide( this->dvbsub->regions[i].osd, 0 ); -#ifdef LOG - printf("SPUDVB: thread hiding = %d\n",i); -#endif - } - } - pthread_cond_wait(&this->dvbsub_restart_timeout, &this->dvbsub_osd_mutex); - } - - pthread_cleanup_pop(1); - return NULL; -} - -static void downscale_region_image( region_t *reg, unsigned char *dest, int dest_width ) -{ - float i, k, inc=reg->width/(float)dest_width; - int j; - for ( j=0; j<reg->height; j++ ) { - for ( i=0,k=0; i<reg->width && k<dest_width; i+=inc,k++ ) { - dest[(j*dest_width)+(int)k] = reg->img[(j*reg->width)+(int)i]; - } - } -} - -static void draw_subtitles (dvb_spu_decoder_t * this) -{ - int64_t dum; - int dest_width=0, dest_height; - this->stream->video_out->status(this->stream->video_out, NULL, &dest_width, &dest_height, &dum); - - if ( !dest_width ) - return; - - /* render all regions onto the page */ - - { - int r; - int display = 0; - for ( r=0; r<MAX_REGIONS; r++ ) { - if ( this->dvbsub->page.regions[r].is_visible ) { - display = 1; - break; - } - } - if ( !display ) - return; - } - - int r; - for (r = 0; r < MAX_REGIONS; r++) { - if (this->dvbsub->regions[r].img) { - if (this->dvbsub->page.regions[r].is_visible && !this->dvbsub->regions[r].empty) { - update_osd( this, r ); - if ( !this->dvbsub->regions[r].osd ) - continue; - /* clear osd */ - this->stream->osd_renderer->clear( this->dvbsub->regions[r].osd ); - - uint8_t *reg; - int reg_width; - uint8_t tmp[dest_width*576]; - if (this->dvbsub->regions[r].width>dest_width) { - downscale_region_image(&this->dvbsub->regions[r], tmp, dest_width); - reg = tmp; - reg_width = dest_width; - } - else { - reg = this->dvbsub->regions[r].img; - reg_width = this->dvbsub->regions[r].width; - } - this->stream->osd_renderer->set_palette( this->dvbsub->regions[r].osd, (uint32_t*)(&this->dvbsub->colours[this->dvbsub->regions[r].CLUT_id*256]), &this->dvbsub->trans[this->dvbsub->regions[r].CLUT_id*256]); - this->stream->osd_renderer->draw_bitmap( this->dvbsub->regions[r].osd, reg, 0, 0, reg_width, this->dvbsub->regions[r].height, NULL ); - } - } - } - - pthread_mutex_lock(&this->dvbsub_osd_mutex); -#ifdef LOG - printf("SPUDVB: this->vpts=%"PRId64"\n", this->vpts); -#endif - for ( r=0; r<MAX_REGIONS; r++ ) { -#ifdef LOG - printf("SPUDVB : region=%d, visible=%d, osd=%d, empty=%d\n", r, this->dvbsub->page.regions[r].is_visible, this->dvbsub->regions[r].osd?1:0, this->dvbsub->regions[r].empty ); -#endif - if ( this->dvbsub->page.regions[r].is_visible && this->dvbsub->regions[r].osd && !this->dvbsub->regions[r].empty ) { - this->stream->osd_renderer->set_position( this->dvbsub->regions[r].osd, this->dvbsub->page.regions[r].x, this->dvbsub->page.regions[r].y ); - this->stream->osd_renderer->show( this->dvbsub->regions[r].osd, this->vpts ); -#ifdef LOG - printf("SPUDVB: show region = %d\n",r); -#endif - } - else { - if ( this->dvbsub->regions[r].osd ) { - this->stream->osd_renderer->hide( this->dvbsub->regions[r].osd, this->vpts ); -#ifdef LOG - printf("SPUDVB: hide region = %d\n",r); -#endif - } - } - } - this->dvbsub_hide_timeout.tv_nsec = 0; - this->dvbsub_hide_timeout.tv_sec = time(NULL) + this->dvbsub->page.page_time_out; -#ifdef LOG - printf("SPUDVB: page_time_out %d\n",this->dvbsub->page.page_time_out); -#endif - pthread_cond_signal(&this->dvbsub_restart_timeout); - pthread_mutex_unlock(&this->dvbsub_osd_mutex); -} - - -static void spudec_decode_data (spu_decoder_t * this_gen, buf_element_t * buf) -{ - dvb_spu_decoder_t *this = (dvb_spu_decoder_t *) this_gen; - - if((buf->type & 0xffff0000)!=BUF_SPU_DVB) - return; - - if (buf->decoder_flags & BUF_FLAG_SPECIAL) { - if (buf->decoder_info[1] == BUF_SPECIAL_SPU_DVB_DESCRIPTOR) { - if (buf->decoder_info[2] == 0) { - /* Hide the osd - note that if the timeout thread times out, it'll rehide, which is harmless */ - pthread_mutex_lock(&this->dvbsub_osd_mutex); - int i; - for ( i=0; i<MAX_REGIONS; i++ ) { - if ( this->dvbsub->regions[i].osd ) - this->stream->osd_renderer->hide( this->dvbsub->regions[i].osd, 0 ); - } - pthread_mutex_unlock(&this->dvbsub_osd_mutex); - } - else { - xine_fast_memcpy (this->spu_descriptor, buf->decoder_info_ptr[2], buf->decoder_info[2]); - } - } - return; - } - - /* accumulate data */ - if (buf->decoder_info[2]) { - memset (this->pes_pkt, 0xff, 64*1024); - this->pes_pkt_wrptr = this->pes_pkt; - this->pes_pkt_size = buf->decoder_info[2]; - - xine_fast_memcpy (this->pes_pkt, buf->content, buf->size); - this->pes_pkt_wrptr += buf->size; - - this->vpts = 0; - } - else { - if (this->pes_pkt && (this->pes_pkt_wrptr != this->pes_pkt)) { - xine_fast_memcpy (this->pes_pkt_wrptr, buf->content, buf->size); - this->pes_pkt_wrptr += buf->size; - } - } - - /* don't ask metronom for a vpts but rather do the calculation - * because buf->pts could be too far in future and metronom won't accept - * further backwards pts (see metronom_got_spu_packet) */ - if (!this->class->ignore_pts && buf->pts > 0) { - metronom_t *const metronom = this->stream->metronom; - const int64_t vpts_offset = metronom->get_option( metronom, METRONOM_VPTS_OFFSET ); - const int64_t spu_offset = metronom->get_option( metronom, METRONOM_SPU_OFFSET ); - const int64_t vpts = (int64_t)(buf->pts)+vpts_offset+spu_offset; - metronom_clock_t *const clock = this->stream->xine->clock; - const int64_t curvpts = clock->get_current_time( clock ); - /* if buf->pts is unreliable, show page asap (better than nothing) */ -#ifdef LOG - printf("SPUDVB: spu_vpts=%"PRId64" - current_vpts=%"PRId64"\n", vpts, curvpts); -#endif - if ( vpts<=curvpts || (vpts-curvpts)>(5*90000) ) - this->vpts = 0; - else - this->vpts = vpts; - } - - /* completely ignore pts since it makes a lot of problems with various providers */ - /* this->vpts = 0; */ - - /* process the pes section */ - - const int PES_packet_length = this->pes_pkt_size; - - this->dvbsub->buf = this->pes_pkt; - - this->dvbsub->i = 0; - - /* - const uint8_t data_identifier = this->dvbsub->buf[this->dvbsub->i]; - const uint8_t subtitle_stream_id = this->dvbsub->buf[this->dvbsub->i+1]; - */ - this->dvbsub->i += 2; - - while (this->dvbsub->i <= (PES_packet_length)) { - /* SUBTITLING SEGMENT */ - this->dvbsub->i++; - const uint8_t segment_type = this->dvbsub->buf[this->dvbsub->i++]; - - this->dvbsub->page.page_id = (this->dvbsub->buf[this->dvbsub->i] << 8) | this->dvbsub->buf[this->dvbsub->i + 1]; - const uint16_t segment_length = _X_BE_16(&this->dvbsub->buf[this->dvbsub->i + 2]); - const int new_i = this->dvbsub->i + segment_length + 4; - - /* only process complete segments */ - if(new_i > (this->pes_pkt_wrptr - this->pes_pkt)) - break; - - /* verify we've the right segment */ - if(this->dvbsub->page.page_id==this->spu_descriptor->comp_page_id){ - /* SEGMENT_DATA_FIELD */ - switch (segment_type) { - case 0x10: - process_page_composition_segment(this); - break; - case 0x11: - process_region_composition_segment(this); - break; - case 0x12: - process_CLUT_definition_segment(this); - break; - case 0x13: - process_object_data_segment (this); - break; - case 0x14: - /* skip display descriptor */ - break; - case 0x80: - draw_subtitles( this ); /* Page is now completely rendered */ - break; - default: - return; - break; - } - } - this->dvbsub->i = new_i; - } -} - -static void spudec_reset (spu_decoder_t * this_gen) -{ - dvb_spu_decoder_t *this = (dvb_spu_decoder_t *) this_gen; - int i; - - /* Hide the osd - if the timeout thread times out, it'll rehide harmlessly */ - pthread_mutex_lock(&this->dvbsub_osd_mutex); - for ( i=0; i<MAX_REGIONS; i++ ) { - if ( this->dvbsub->regions[i].osd ) - this->stream->osd_renderer->hide(this->dvbsub->regions[i].osd, 0); - this->dvbsub->regions[i].version_number = -1; - } - this->dvbsub->page.page_version_number = -1; - pthread_mutex_unlock(&this->dvbsub_osd_mutex); - -} - -static void spudec_discontinuity (spu_decoder_t * this_gen) -{ - /* do nothing */ -} - -static void spudec_dispose (spu_decoder_t * this_gen) -{ - dvb_spu_decoder_t *this = (dvb_spu_decoder_t *) this_gen; - - pthread_cancel(this->dvbsub_timer_thread); - pthread_join(this->dvbsub_timer_thread, NULL); - pthread_mutex_destroy(&this->dvbsub_osd_mutex); - pthread_cond_destroy(&this->dvbsub_restart_timeout); - - free(this->spu_descriptor); - this->spu_descriptor=NULL; - - int i; - for ( i=0; i<MAX_REGIONS; i++ ) { - free( this->dvbsub->regions[i].img ); - if ( this->dvbsub->regions[i].osd ) - this->stream->osd_renderer->free_object( this->dvbsub->regions[i].osd ); - } - - free (this->pes_pkt); - free (this->dvbsub); - free (this); -} - -static spu_decoder_t *dvb_spu_class_open_plugin (spu_decoder_class_t * class_gen, xine_stream_t * stream) -{ - dvb_spu_decoder_t *this = calloc(1, sizeof (dvb_spu_decoder_t)); - dvb_spu_class_t *class = (dvb_spu_class_t *)class_gen; - - this->spu_decoder.decode_data = spudec_decode_data; - this->spu_decoder.reset = spudec_reset; - this->spu_decoder.discontinuity = spudec_discontinuity; - this->spu_decoder.dispose = spudec_dispose; - this->spu_decoder.get_interact_info = NULL; - this->spu_decoder.set_button = NULL; - - this->class = class; - this->stream = stream; - - this->pes_pkt = calloc(65, 1024); - this->spu_descriptor = calloc(1, sizeof(spu_dvb_descriptor_t)); - - this->dvbsub = calloc(1, sizeof (dvbsub_func_t)); - - pthread_mutex_init(&this->dvbsub_osd_mutex, NULL); - pthread_cond_init(&this->dvbsub_restart_timeout, NULL); - this->dvbsub_hide_timeout.tv_nsec = 0; - this->dvbsub_hide_timeout.tv_sec = time(NULL); - pthread_create(&this->dvbsub_timer_thread, NULL, dvbsub_timer_func, this); - - return (spu_decoder_t *) this; -} - -static void dvb_spu_class_dispose (spu_decoder_class_t * this_gen) -{ - dvb_spu_class_t *this = (dvb_spu_class_t *) this_gen; - - this->xine->config->unregister_callback(this->xine->config, "subtitles.dvb.ignore_pts"); - - free (this); -} - -static char *dvb_spu_class_get_identifier (spu_decoder_class_t * this) -{ - return "spudvb"; -} - -static char *dvb_spu_class_get_description (spu_decoder_class_t * this) -{ - return "DVB subtitle decoder plugin"; -} - -static void spu_dvb_ignore_pts_change(void *this_gen, xine_cfg_entry_t *value) -{ - dvb_spu_class_t *this = (dvb_spu_class_t *) this_gen; - - this->ignore_pts = value->num_value; -} - -static void *init_spu_decoder_plugin (xine_t * xine, void *data) -{ - dvb_spu_class_t *this = calloc(1, sizeof (dvb_spu_class_t)); - - this->class.open_plugin = dvb_spu_class_open_plugin; - this->class.get_identifier = dvb_spu_class_get_identifier; - this->class.get_description = dvb_spu_class_get_description; - this->class.dispose = dvb_spu_class_dispose; - - this->xine = xine; - - this->ignore_pts = xine->config->register_bool(xine->config, - "subtitles.dvb.ignore_pts", 0, - _("Ignore DVB subtitle timing"), - _("Do not use PTS timestamps for DVB subtitle timing"), - 1, spu_dvb_ignore_pts_change, this); - - return &this->class; -} - - -/* plugin catalog information */ -static uint32_t supported_types[] = { BUF_SPU_DVB, 0 }; - -static const decoder_info_t spudec_info = { - supported_types, /* supported types */ - 1 /* priority */ -}; - -const plugin_info_t xine_plugin_info[] EXPORTED = { -/* type, API, "name", version, special_info, init_function */ - {PLUGIN_SPU_DECODER, 16, "spudvb", XINE_VERSION_CODE, &spudec_info, - &init_spu_decoder_plugin}, - {PLUGIN_NONE, 0, "", 0, NULL, NULL} -}; |