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xine_hdmv_decoder.c    1096 lines (877 with data), 28.8 kB

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/*
* Copyright (C) 2000-2009 the xine project
*
* Copyright (C) 2009 Petri Hintukainen <phintuka@users.sourceforge.net>
*
* This file is part of xine, a unix 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
*
* Decoder for HDMV/BluRay bitmap subtitles
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <inttypes.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#ifdef HAVE_CONFIG_H
# include "xine_internal.h"
# include "buffer.h"
# include "xineutils.h"
# include "video_out.h"
# include "video_overlay.h"
#else
# include <xine/xine_internal.h>
# include <xine/buffer.h>
# include <xine/xineutils.h>
# include <xine/video_out.h>
# include <xine/video_overlay.h>
#endif
#define XINE_HDMV_TRACE(x...) printf(x)
/*#define XINE_HDMV_TRACE(x...) */
#define XINE_HDMV_ERROR(x...) fprintf(stderr, "spuhdmv: " x)
/*#define XINE_HDMV_ERROR(x...) lprintf(x) */
#ifndef MAX
# define MAX(a,b) (a>b)?(a):(b)
#endif
enum {
SEGTYPE_PALETTE = 0x14,
SEGTYPE_OBJECT = 0x15,
SEGTYPE_PRESENTATION_SEGMENT = 0x16,
SEGTYPE_WINDOW_DEFINITION = 0x17,
SEGTYPE_INTERACTIVE = 0x18,
SEGTYPE_END_OF_DISPLAY = 0x80,
} eSegmentType;
/*
* cached palette (xine-lib format)
*/
typedef struct subtitle_clut_s subtitle_clut_t;
struct subtitle_clut_s {
uint8_t id;
uint32_t color[256];
uint8_t trans[256];
subtitle_clut_t *next;
int shown;
};
/*
* cached RLE image (xine-lib format)
*/
typedef struct subtitle_object_s subtitle_object_t;
struct subtitle_object_s {
uint16_t id;
uint16_t xpos, ypos;
uint16_t width, height;
/* xine format */
rle_elem_t *rle;
unsigned int num_rle;
size_t data_size;
/* HDMV format (used when object does not fit to single segment) */
uint32_t data_len; /* size of complete object */
uint8_t *raw_data; /* partial RLE data in HDMV format */
size_t raw_data_len; /* bytes buffered */
size_t raw_data_size; /* allocated size */
subtitle_object_t *next;
int shown;
};
/*
* Window definition
*/
typedef struct window_def_s window_def_t;
struct window_def_s {
uint8_t id;
uint16_t xpos, ypos;
uint16_t width, height;
window_def_t *next;
int shown;
};
/*
* decoded SPU
*/
typedef struct composition_object_s composition_object_t;
struct composition_object_s {
uint8_t window_id_ref;
uint16_t object_id_ref;
uint16_t xpos, ypos;
uint8_t forced_flag;
uint8_t cropped_flag;
uint16_t crop_horiz_pos, crop_vert_pos;
uint16_t crop_width, crop_height;
composition_object_t *next;
int shown;
};
typedef struct composition_descriptor_s composition_descriptor_t;
struct composition_descriptor_s {
uint16_t number;
uint8_t state;
};
typedef struct presentation_segment_s presentation_segment_t;
struct presentation_segment_s {
composition_descriptor_t comp_descr;
uint8_t palette_update_flag;
uint8_t palette_id_ref;
uint8_t object_number;
composition_object_t *comp_objs;
presentation_segment_t *next;
int64_t pts;
int shown;
};
/*
* list handling
*/
#define LIST_REPLACE(list, obj, FREE_FUNC) \
do { \
unsigned int id = obj->id; \
\
/* insert to list */ \
obj->next = list; \
list = obj; \
\
/* remove old */ \
while (obj->next && obj->next->id != id) \
obj = obj->next; \
if (obj->next) { \
void *tmp = (void*)obj->next; \
obj->next = obj->next->next; \
FREE_FUNC(tmp); \
} \
} while (0);
#define LIST_DESTROY(list, FREE_FUNC) \
while (list) { \
void *tmp = (void*)list; \
list = list->next; \
FREE_FUNC(tmp); \
}
static void free_subtitle_object(void *ptr)
{
if (ptr) {
free(((subtitle_object_t*)ptr)->rle);
free(((subtitle_object_t*)ptr)->raw_data);
free(ptr);
}
}
static void free_presentation_segment(void *ptr)
{
if (ptr) {
presentation_segment_t *seg = (presentation_segment_t*)ptr;
LIST_DESTROY(seg->comp_objs, free);
free(ptr);
}
}
/*
* segment_buffer_t
*
* assemble and decode segments
*/
typedef struct {
/* current segment */
int segment_len; /* length of current segment (without 3-byte header) */
uint8_t segment_type; /* current segment type */
uint8_t *segment_data; /* pointer to current segment payload */
uint8_t *segment_end; /* pointer to last byte + 1 of current segment */
uint8_t error; /* boolean: buffer overflow etc. */
/* accumulated data */
uint8_t *buf; /* */
size_t len; /* count of unprocessed bytes */
size_t data_size; /* allocated buffer size */
} segment_buffer_t;
/*
* mgmt
*/
static segment_buffer_t *segbuf_init(void)
{
segment_buffer_t *buf = calloc(1, sizeof(segment_buffer_t));
return buf;
}
static void segbuf_dispose(segment_buffer_t *buf)
{
if (buf->buf)
free (buf->buf);
free (buf);
}
static void segbuf_reset(segment_buffer_t *buf)
{
buf->segment_end = buf->segment_data = buf->buf;
buf->len = 0;
buf->segment_len = -1;
buf->segment_type = 0;
buf->error = 0;
}
/*
* assemble, parse
*/
static void segbuf_parse_segment_header(segment_buffer_t *buf)
{
if (buf->len > 2) {
buf->segment_type = buf->buf[0];
buf->segment_len = (buf->buf[1] << 8) | buf->buf[2];
buf->segment_data = buf->buf + 3;
buf->segment_end = buf->segment_data + buf->segment_len;
buf->error = 0;
if ( buf->segment_type < 0x14 ||
( buf->segment_type > 0x18 &&
buf->segment_type != 0x80)) {
XINE_HDMV_ERROR("unknown segment type 0x%02x, resetting\n", buf->segment_type);
segbuf_reset(buf);
}
} else {
buf->segment_len = -1;
buf->error = 1;
}
}
static void segbuf_fill(segment_buffer_t *buf, uint8_t *data, size_t len)
{
if (buf->len + len > buf->data_size) {
buf->data_size = buf->len + len;
if (buf->buf)
buf->buf = realloc(buf->buf, buf->data_size);
else
buf->buf = malloc(buf->data_size);
}
memcpy(buf->buf + buf->len, data, len);
buf->len += len;
segbuf_parse_segment_header(buf);
}
static int segbuf_segment_complete(segment_buffer_t *buf)
{
return (buf->segment_len >= 0) && (buf->len >= (unsigned)buf->segment_len + 3);
}
static void segbuf_skip_segment(segment_buffer_t *buf)
{
if (segbuf_segment_complete (buf)) {
buf->len -= buf->segment_len + 3;
if (buf->len > 0)
memmove(buf->buf, buf->buf + buf->segment_len + 3, buf->len);
segbuf_parse_segment_header(buf);
XINE_HDMV_TRACE(" skip_segment: %zd bytes left\n", buf->len);
} else {
XINE_HDMV_ERROR(" skip_segment: ERROR - %zd bytes queued, %d required\n",
buf->len, buf->segment_len);
segbuf_reset (buf);
}
}
/*
* access segment data
*/
static uint8_t segbuf_segment_type(segment_buffer_t *buf)
{
return buf->segment_type;
}
static size_t segbuf_data_length(segment_buffer_t *buf)
{
ssize_t val = buf->segment_end - buf->segment_data;
if (val < 0) val = 0;
return (size_t)val;
}
static uint8_t segbuf_get_u8(segment_buffer_t *buf)
{
if (!(buf->error = ++buf->segment_data > buf->segment_end))
return buf->segment_data[-1];
XINE_HDMV_ERROR("segbuf_get_u8: read failed (end of segment reached) !\n");
return 0;
}
static uint16_t segbuf_get_u16(segment_buffer_t *buf)
{
return (segbuf_get_u8(buf) << 8) | segbuf_get_u8(buf);
}
static uint32_t segbuf_get_u24(segment_buffer_t *buf)
{
return (segbuf_get_u8(buf) << 16) | (segbuf_get_u8(buf) << 8) | segbuf_get_u8(buf);
}
/*
* decode segments
*/
static subtitle_clut_t *segbuf_decode_palette(segment_buffer_t *buf)
{
uint8_t palette_id = segbuf_get_u8 (buf);
uint8_t palette_version_number = segbuf_get_u8 (buf);
size_t len = segbuf_data_length(buf);
size_t entries = len / 5;
size_t i;
if (buf->error)
return NULL;
if (len % 5) {
XINE_HDMV_ERROR(" decode_palette: segment size error (%zd ; expected %zd for %zd entries)\n",
len, (5 * entries), entries);
return NULL;
}
XINE_HDMV_TRACE("decode_palette: %zd items (id %d, version %d)\n",
entries, palette_id, palette_version_number);
/* convert to xine-lib clut */
subtitle_clut_t *clut = calloc(1, sizeof(subtitle_clut_t));
clut->id = palette_id;
for (i = 0; i < entries; i++) {
uint8_t index = segbuf_get_u8 (buf);
uint8_t Y = segbuf_get_u8 (buf);
uint8_t Cr = segbuf_get_u8 (buf);
uint8_t Cb = segbuf_get_u8 (buf);
uint8_t alpha = segbuf_get_u8 (buf);
clut->color[index] = (Y << 16) | (Cr << 8) | Cb;
clut->trans[index] = alpha >> 4;
}
return clut;
}
static int segbuf_decode_rle(segment_buffer_t *buf, subtitle_object_t *obj)
{
int x = 0, y = 0;
int rle_size = sizeof(rle_elem_t) * obj->width / 16 * obj->height + 1;
rle_elem_t *rlep = malloc(rle_size);
free (obj->rle);
obj->rle = rlep;
obj->data_size = rle_size;
obj->num_rle = 0;
/* convert to xine-lib rle format */
while (y < obj->height && !buf->error) {
/* decode RLE element */
uint8_t byte = segbuf_get_u8 (buf);
if (byte != 0) {
rlep->color = byte;
rlep->len = 1;
} else {
byte = segbuf_get_u8 (buf);
if (!(byte & 0x80)) {
rlep->color = 0;
if (!(byte & 0x40))
rlep->len = byte & 0x3f;
else
rlep->len = ((byte & 0x3f) << 8) | segbuf_get_u8 (buf);
} else {
if (!(byte & 0x40))
rlep->len = byte & 0x3f;
else
rlep->len = ((byte & 0x3f) << 8) | segbuf_get_u8 (buf);
rlep->color = segbuf_get_u8 (buf);
}
}
/* move to next element */
if (rlep->len > 0) {
x += rlep->len;
rlep++;
obj->num_rle ++;
} else {
/* end of line marker (00 00) */
if (x < obj->width) {
rlep->len = obj->width - x;
rlep->color = 0xff;
rlep++;
obj->num_rle ++;
}
x = 0;
y++;
}
/* grow allocated RLE data size ? */
if (obj->data_size <= (obj->num_rle + 1) * sizeof(rle_elem_t)) {
obj->data_size *= 2;
obj->rle = realloc(obj->rle, obj->data_size);
rlep = obj->rle + obj->num_rle;
}
}
return buf->error;
}
static subtitle_object_t *segbuf_decode_object(segment_buffer_t *buf, subtitle_object_t *objects)
{
uint16_t object_id = segbuf_get_u16(buf);
uint8_t version = segbuf_get_u8 (buf);
uint8_t seq_desc = segbuf_get_u8 (buf);
XINE_HDMV_TRACE(" decode_object: object_id %d, version %d, seq 0x%x\n",
object_id, version, seq_desc);
if (seq_desc & 0x80) {
/* new object (first-in-sequence flag set) */
subtitle_object_t *obj = calloc(1, sizeof(subtitle_object_t));
obj->id = object_id;
obj->data_len = segbuf_get_u24(buf);
obj->width = segbuf_get_u16(buf);
obj->height = segbuf_get_u16(buf);
if (buf->error) {
XINE_HDMV_TRACE(" decode error at object header\n");
free_subtitle_object(obj);
return NULL;
}
obj->data_len -= 4; /* width, height parsed */
XINE_HDMV_TRACE(" object length %d bytes, size %dx%d\n", obj->data_len, obj->width, obj->height);
if (obj->data_len > segbuf_data_length(buf)) {
XINE_HDMV_TRACE(" object length %d bytes, have only %zd bytes -> missing %d bytes\n",
obj->data_len, segbuf_data_length(buf), obj->data_len - (int)segbuf_data_length(buf));
if (obj->raw_data)
free(obj->raw_data);
/* store partial RLE data in HDMV format */
obj->raw_data_len = segbuf_data_length(buf);
obj->raw_data_size = MAX(obj->data_len, obj->raw_data_len);
obj->raw_data = malloc(obj->raw_data_size);
memcpy(obj->raw_data, buf->segment_data, obj->raw_data_len);
return obj;
}
segbuf_decode_rle (buf, obj);
if (buf->error) {
XINE_HDMV_TRACE(" decode error at RLE data\n");
free_subtitle_object(obj);
return NULL;
}
return obj;
}
/* not first-of-sequence --> append data to already existing objct */
/* search for object */
while (objects && objects->id != object_id)
objects = objects->next;
if (!objects) {
XINE_HDMV_TRACE(" object not found from list, discarding segment\n");
return NULL;
}
/* store partial RLE data in HDMV format */
if (objects->raw_data_size < objects->raw_data_len + segbuf_data_length(buf)) {
XINE_HDMV_ERROR("object larger than object size !\n");
return NULL;
}
memcpy(objects->raw_data + objects->raw_data_len, buf->segment_data, segbuf_data_length(buf));
objects->raw_data_len += segbuf_data_length(buf);
/* if complete, decode RLE data */
if (objects->raw_data_len >= objects->data_len) {
/* create dummy buffer for segbuf_decode_rle */
segment_buffer_t tmpbuf = {
.segment_data = objects->raw_data,
.segment_end = objects->raw_data + objects->raw_data_len,
};
/* decode RLE data */
segbuf_decode_rle (&tmpbuf, objects);
if (tmpbuf.error) {
XINE_HDMV_TRACE(" error decoding multi-segment object\n");
}
/* free decode buffer */
free(objects->raw_data);
objects->raw_data = NULL;
objects->raw_data_len = 0;
objects->raw_data_size = 0;
}
return NULL;
}
static window_def_t *segbuf_decode_window_definition(segment_buffer_t *buf)
{
window_def_t *wnd = calloc(1, sizeof(window_def_t));
uint8_t a = segbuf_get_u8 (buf);
wnd->id = segbuf_get_u8 (buf);
wnd->xpos = segbuf_get_u16 (buf);
wnd->ypos = segbuf_get_u16 (buf);
wnd->width = segbuf_get_u16 (buf);
wnd->height = segbuf_get_u16 (buf);
XINE_HDMV_TRACE(" window: [%02x %d] %d,%d %dx%d\n", a,
wnd->id, wnd->xpos, wnd->ypos, wnd->width, wnd->height);
if (buf->error) {
free(wnd);
return NULL;
}
return wnd;
}
static int segbuf_decode_video_descriptor(segment_buffer_t *buf)
{
uint16_t width = segbuf_get_u16(buf);
uint16_t height = segbuf_get_u16(buf);
uint8_t frame_rate = segbuf_get_u8 (buf);
XINE_HDMV_TRACE(" video_descriptor: %dx%d fps %d\n", width, height, frame_rate);
return buf->error;
}
static int segbuf_decode_composition_descriptor(segment_buffer_t *buf, composition_descriptor_t *descr)
{
descr->number = segbuf_get_u16(buf);
descr->state = segbuf_get_u8 (buf) & 0xc0;
XINE_HDMV_TRACE(" composition_descriptor: number %d, state %d\n", descr->number, descr->state);
return buf->error;
}
static composition_object_t *segbuf_decode_composition_object(segment_buffer_t *buf)
{
composition_object_t *cobj = calloc(1, sizeof(composition_object_t));
cobj->object_id_ref = segbuf_get_u16 (buf);
cobj->window_id_ref = segbuf_get_u8 (buf);
uint8_t tmp = segbuf_get_u8 (buf);
cobj->cropped_flag = !!(tmp & 0x80);
cobj->forced_flag = !!(tmp & 0x40);
cobj->xpos = segbuf_get_u16 (buf);
cobj->ypos = segbuf_get_u16 (buf);
if (cobj->cropped_flag) {
/* x,y where to take the image from */
cobj->crop_horiz_pos = segbuf_get_u8 (buf);
cobj->crop_vert_pos = segbuf_get_u8 (buf);
/* size of the cropped image */
cobj->crop_width = segbuf_get_u8 (buf);
cobj->crop_height = segbuf_get_u8 (buf);
}
if (buf->error) {
free(cobj);
return NULL;
}
XINE_HDMV_TRACE(" composition_object: id: %d, win: %d, position %d,%d crop %d forced %d\n",
cobj->object_id_ref, cobj->window_id_ref, cobj->xpos, cobj->ypos,
cobj->cropped_flag, cobj->forced_flag);
return cobj;
}
static presentation_segment_t *segbuf_decode_presentation_segment(segment_buffer_t *buf)
{
presentation_segment_t *seg = calloc(1, sizeof(presentation_segment_t));
int index;
segbuf_decode_video_descriptor (buf);
segbuf_decode_composition_descriptor (buf, &seg->comp_descr);
seg->palette_update_flag = !!((segbuf_get_u8(buf)) & 0x80);
seg->palette_id_ref = segbuf_get_u8 (buf);
seg->object_number = segbuf_get_u8 (buf);
XINE_HDMV_TRACE(" presentation_segment: object_number %d, palette %d\n",
seg->object_number, seg->palette_id_ref);
for (index = 0; index < seg->object_number; index++) {
composition_object_t *cobj = segbuf_decode_composition_object (buf);
cobj->next = seg->comp_objs;
seg->comp_objs = cobj;
}
if (buf->error) {
free_presentation_segment(seg);
return NULL;
}
return seg;
}
static rle_elem_t *copy_crop_rle(subtitle_object_t *obj, composition_object_t *cobj)
{
/* TODO: cropping (w,h sized image from pos x,y) */
rle_elem_t *rle = calloc (obj->num_rle, sizeof(rle_elem_t));
memcpy (rle, obj->rle, obj->num_rle * sizeof(rle_elem_t));
return rle;
}
/*
* xine plugin
*/
typedef struct {
spu_decoder_class_t decoder_class;
} spuhdmv_class_t;
typedef struct spuhdmv_decoder_s {
spu_decoder_t spu_decoder;
spuhdmv_class_t *class;
xine_stream_t *stream;
segment_buffer_t *buf;
subtitle_clut_t *cluts;
subtitle_object_t *objects;
window_def_t *windows;
presentation_segment_t *segments;
int overlay_handles[MAX_OBJECTS];
int64_t pts;
} spuhdmv_decoder_t;
static void free_objs(spuhdmv_decoder_t *this)
{
LIST_DESTROY (this->cluts, free);
LIST_DESTROY (this->objects, free_subtitle_object);
LIST_DESTROY (this->windows, free);
LIST_DESTROY (this->segments, free_presentation_segment);
}
static int decode_palette(spuhdmv_decoder_t *this)
{
/* decode */
subtitle_clut_t *clut = segbuf_decode_palette(this->buf);
if (!clut)
return 1;
LIST_REPLACE (this->cluts, clut, free);
return 0;
}
static int decode_object(spuhdmv_decoder_t *this)
{
/* decode */
subtitle_object_t *obj = segbuf_decode_object(this->buf, this->objects);
if (!obj)
return 1;
LIST_REPLACE (this->objects, obj, free_subtitle_object);
return 0;
}
static int decode_window_definition(spuhdmv_decoder_t *this)
{
/* decode */
window_def_t *wnd = segbuf_decode_window_definition (this->buf);
if (!wnd)
return 1;
LIST_REPLACE (this->windows, wnd, free);
return 0;
}
static int decode_presentation_segment(spuhdmv_decoder_t *this)
{
/* decode */
presentation_segment_t *seg = segbuf_decode_presentation_segment(this->buf);
if (!seg)
return 1;
seg->pts = this->pts;
/* epoch start or acquistion point -> drop cached objects */
if (seg->comp_descr.state) {
free_objs(this);
}
/* replace */
if (this->segments)
LIST_DESTROY(this->segments, free_presentation_segment);
this->segments = seg;
return 0;
}
static int show_overlay(spuhdmv_decoder_t *this, composition_object_t *cobj, unsigned int palette_id_ref,
int overlay_index, int64_t pts, int force_update)
{
video_overlay_manager_t *ovl_manager = this->stream->video_out->get_overlay_manager(this->stream->video_out);
metronom_t *metronom = this->stream->metronom;
video_overlay_event_t event = {0};
vo_overlay_t overlay = {0};
/* find palette */
subtitle_clut_t *clut = this->cluts;
while (clut && clut->id != palette_id_ref)
clut = clut->next;
if (!clut) {
XINE_HDMV_TRACE(" show_overlay: clut %d not found !\n", palette_id_ref);
return -1;
}
/* find RLE image */
subtitle_object_t *obj = this->objects;
while (obj && obj->id != cobj->object_id_ref)
obj = obj->next;
if (!obj) {
XINE_HDMV_TRACE(" show_overlay: object %d not found !\n", cobj->object_id_ref);
return -1;
}
if (!obj->rle) {
XINE_HDMV_TRACE(" show_overlay: object %d RLE data not decoded !\n", cobj->object_id_ref);
return -1;
}
/* find window */
window_def_t *wnd = this->windows;
while (wnd && wnd->id != cobj->window_id_ref)
wnd = wnd->next;
if (!wnd) {
XINE_HDMV_TRACE(" show_overlay: window %d not found !\n", cobj->window_id_ref);
return -1;
}
/* do not show again if all elements are unchanged */
if (!force_update && clut->shown && obj->shown && wnd->shown && cobj->shown)
return 0;
clut->shown = obj->shown = wnd->shown = cobj->shown = 1;
/* copy palette to xine overlay */
overlay.rgb_clut = 0;
memcpy(overlay.color, clut->color, sizeof(uint32_t) * 256);
memcpy(overlay.trans, clut->trans, sizeof(uint8_t) * 256);
/* copy and crop RLE image to xine overlay */
overlay.width = obj->width;
overlay.height = obj->height;
overlay.rle = copy_crop_rle (obj, cobj);
overlay.num_rle = obj->num_rle;
overlay.data_size = obj->num_rle * sizeof(rle_elem_t);
/* */
overlay.x = /*wnd->xpos +*/ cobj->xpos;
overlay.y = /*wnd->ypos +*/ cobj->ypos;
overlay.unscaled = 0;
overlay.hili_top = -1;
overlay.hili_bottom = -1;
overlay.hili_left = -1;
overlay.hili_right = -1;
XINE_HDMV_TRACE(" -> overlay: %d,%d %dx%d\n",
overlay.x, overlay.y, overlay.width, overlay.height);
/* set timings */
if (pts > 0)
event.vpts = metronom->got_spu_packet (metronom, pts);
else
event.vpts = 0;
/* generate SHOW event */
this->stream->video_out->enable_ovl(this->stream->video_out, 1);
if (this->overlay_handles[overlay_index] < 0)
this->overlay_handles[overlay_index] = ovl_manager->get_handle(ovl_manager, 0);
event.event_type = OVERLAY_EVENT_SHOW;
event.object.handle = this->overlay_handles[overlay_index];
event.object.overlay = &overlay;
event.object.object_type = 0; /* subtitle */
ovl_manager->add_event (ovl_manager, (void *)&event);
return 0;
}
static void hide_overlays(spuhdmv_decoder_t *this, int64_t pts)
{
video_overlay_event_t event = {0};
int i = 0;
while (this->overlay_handles[i] >= 0) {
XINE_HDMV_TRACE(" -> HIDE %d\n", i);
video_overlay_manager_t *ovl_manager = this->stream->video_out->get_overlay_manager(this->stream->video_out);
metronom_t *metronom = this->stream->metronom;
event.object.handle = this->overlay_handles[i];
if (this)
event.vpts = metronom->got_spu_packet (metronom, pts);
else
event.vpts = 0;
event.event_type = OVERLAY_EVENT_HIDE;
event.object.overlay = NULL;
ovl_manager->add_event (ovl_manager, (void *)&event);
//this->overlay_handles[i] = -1;
i++;
}
}
static void update_overlays(spuhdmv_decoder_t *this)
{
presentation_segment_t *pseg = this->segments;
while (pseg) {
if (!pseg->object_number) {
/* HIDE */
if (!pseg->shown)
hide_overlays (this, pseg->pts);
} else {
/* SHOW */
composition_object_t *cobj = pseg->comp_objs;
int i;
for (i = 0; i < pseg->object_number; i++) {
if (!cobj) {
XINE_HDMV_ERROR("show_overlays: composition object %d missing !\n", i);
} else {
show_overlay(this, cobj, pseg->palette_id_ref, i, pseg->pts, !pseg->shown);
cobj = cobj->next;
}
}
}
pseg->shown = 1;
pseg = pseg->next;
}
}
static void decode_segment(spuhdmv_decoder_t *this)
{
XINE_HDMV_TRACE("*** new segment, pts %010"PRId64": 0x%02x (%8d bytes)\n",
this->pts, this->buf->segment_type, this->buf->segment_len);
switch (segbuf_segment_type(this->buf)) {
case SEGTYPE_PALETTE:
XINE_HDMV_TRACE(" segment: PALETTE\n");
decode_palette(this);
break;
case SEGTYPE_OBJECT:
XINE_HDMV_TRACE(" segment: OBJECT\n");
decode_object(this);
break;
case SEGTYPE_PRESENTATION_SEGMENT:
XINE_HDMV_TRACE(" segment: PRESENTATION SEGMENT\n");
decode_presentation_segment(this);
break;
case SEGTYPE_WINDOW_DEFINITION:
XINE_HDMV_TRACE(" segment: WINDOW DEFINITION\n");
decode_window_definition(this);
break;
case SEGTYPE_INTERACTIVE:
XINE_HDMV_TRACE(" segment: INTERACTIVE\n");
break;
case SEGTYPE_END_OF_DISPLAY:
XINE_HDMV_TRACE(" segment: END OF DISPLAY\n");
#if 0
/* drop all cached objects */
free_objs(this);
#endif
break;
default:
XINE_HDMV_ERROR(" segment type 0x%x unknown, skipping\n", segbuf_segment_type(this->buf));
break;
}
if (this->buf->error) {
XINE_HDMV_ERROR("*** DECODE ERROR ***\n");
}
update_overlays (this);
}
static void close_osd(spuhdmv_decoder_t *this)
{
video_overlay_manager_t *ovl_manager = this->stream->video_out->get_overlay_manager (this->stream->video_out);
int i = 0;
while (this->overlay_handles[i] >= 0) {
ovl_manager->free_handle(ovl_manager, this->overlay_handles[i]);
this->overlay_handles[i] = -1;
i++;
}
}
static void spudec_decode_data (spu_decoder_t * this_gen, buf_element_t * buf)
{
spuhdmv_decoder_t *this = (spuhdmv_decoder_t *) this_gen;
if ((buf->type & 0xffff0000) != BUF_SPU_HDMV)
return;
if (buf->size < 1)
return;
if (buf->pts)
this->pts = buf->pts;
#ifdef DUMP_SPU_DATA
int i;
for(i = 0; i < buf->size; i++)
printf(" %02x", buf->content[i]);
printf("\n");
#endif
segbuf_fill(this->buf, buf->content, buf->size);
while (segbuf_segment_complete(this->buf)) {
decode_segment(this);
segbuf_skip_segment(this->buf);
}
}
static void spudec_reset (spu_decoder_t * this_gen)
{
spuhdmv_decoder_t *this = (spuhdmv_decoder_t *) this_gen;
if (this->buf)
segbuf_reset(this->buf);
free_objs(this);
close_osd(this);
}
static void spudec_discontinuity (spu_decoder_t *this_gen)
{
spuhdmv_decoder_t *this = (spuhdmv_decoder_t *) this_gen;
close_osd(this);
}
static void spudec_dispose (spu_decoder_t *this_gen)
{
spuhdmv_decoder_t *this = (spuhdmv_decoder_t *) this_gen;
close_osd (this);
segbuf_dispose (this->buf);
free_objs(this);
free (this);
}
static spu_decoder_t *open_plugin (spu_decoder_class_t *class_gen, xine_stream_t *stream)
{
spuhdmv_decoder_t *this;
this = (spuhdmv_decoder_t *) calloc(1, sizeof (spuhdmv_decoder_t));
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->stream = stream;
this->class = (spuhdmv_class_t *) class_gen;
this->buf = segbuf_init();
memset(this->overlay_handles, 0xff, sizeof(this->overlay_handles)); /* --> -1 */
return &this->spu_decoder;
}
static char *get_identifier (spu_decoder_class_t *this)
{
return "spuhdmv";
}
static char *get_description (spu_decoder_class_t *this)
{
return "HDMV/BluRay bitmap SPU decoder plugin";
}
static void dispose_class (spu_decoder_class_t *this)
{
free (this);
}
static void *init_plugin (xine_t *xine, void *data)
{
spuhdmv_class_t *this;
this = calloc(1, sizeof (spuhdmv_class_t));
this->decoder_class.open_plugin = open_plugin;
this->decoder_class.get_identifier = get_identifier;
this->decoder_class.get_description = get_description;
this->decoder_class.dispose = dispose_class;
return this;
}
/* plugin catalog information */
static uint32_t supported_types[] = { BUF_SPU_HDMV, 0 };
static const decoder_info_t dec_info_data = {
supported_types, /* supported types */
5 /* priority */
};
const plugin_info_t xine_plugin_info[] EXPORTED = {
/* type, API, "name", version, special_info, init_function */
{ PLUGIN_SPU_DECODER, 16, "spuhdmv", XINE_VERSION_CODE, &dec_info_data, &init_plugin },
{ PLUGIN_NONE, 0, "", 0, NULL, NULL }
};