mirror of
https://github.com/mpv-player/mpv
synced 2024-12-15 19:35:49 +00:00
2b01fc0678
Support "clear" packets that contain no data but instead clear the screen at a given time. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@32410 b3059339-0415-0410-9bf9-f77b7e298cf2 Reindent. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@32411 b3059339-0415-0410-9bf9-f77b7e298cf2
1394 lines
46 KiB
C
1394 lines
46 KiB
C
/*
|
|
* Skeleton of function spudec_process_controll() is from xine sources.
|
|
* Further works:
|
|
* LGB,... (yeah, try to improve it and insert your name here! ;-)
|
|
*
|
|
* Kim Minh Kaplan
|
|
* implement fragments reassembly, RLE decoding.
|
|
* read brightness from the IFO.
|
|
*
|
|
* For information on SPU format see <URL:http://sam.zoy.org/doc/dvd/subtitles/>
|
|
* and <URL:http://members.aol.com/mpucoder/DVD/spu.html>
|
|
*
|
|
* This file is part of MPlayer.
|
|
*
|
|
* MPlayer 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.
|
|
*
|
|
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "mp_msg.h"
|
|
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <math.h>
|
|
#include "libvo/video_out.h"
|
|
#include "spudec.h"
|
|
#include "vobsub.h"
|
|
#include "libavutil/avutil.h"
|
|
#include "ffmpeg_files/intreadwrite.h"
|
|
#include "libswscale/swscale.h"
|
|
|
|
/* Valid values for spu_aamode:
|
|
0: none (fastest, most ugly)
|
|
1: approximate
|
|
2: full (slowest)
|
|
3: bilinear (similiar to vobsub, fast and not too bad)
|
|
4: uses swscaler gaussian (this is the only one that looks good)
|
|
*/
|
|
|
|
int spu_aamode = 3;
|
|
int spu_alignment = -1;
|
|
float spu_gaussvar = 1.0;
|
|
extern int sub_pos;
|
|
|
|
typedef struct packet_t packet_t;
|
|
struct packet_t {
|
|
int is_decoded;
|
|
unsigned char *packet;
|
|
int data_len;
|
|
unsigned int palette[4];
|
|
unsigned int alpha[4];
|
|
unsigned int control_start; /* index of start of control data */
|
|
unsigned int current_nibble[2]; /* next data nibble (4 bits) to be
|
|
processed (for RLE decoding) for
|
|
even and odd lines */
|
|
int deinterlace_oddness; /* 0 or 1, index into current_nibble */
|
|
unsigned int start_col;
|
|
unsigned int start_row;
|
|
unsigned int width, height, stride;
|
|
unsigned int start_pts, end_pts;
|
|
packet_t *next;
|
|
};
|
|
|
|
struct palette_crop_cache {
|
|
int valid;
|
|
uint32_t palette;
|
|
int sx, sy, ex, ey;
|
|
int result;
|
|
};
|
|
|
|
typedef struct {
|
|
packet_t *queue_head;
|
|
packet_t *queue_tail;
|
|
unsigned int global_palette[16];
|
|
unsigned int orig_frame_width, orig_frame_height;
|
|
unsigned char* packet;
|
|
size_t packet_reserve; /* size of the memory pointed to by packet */
|
|
unsigned int packet_offset; /* end of the currently assembled fragment */
|
|
unsigned int packet_size; /* size of the packet once all fragments are assembled */
|
|
int packet_pts; /* PTS for this packet */
|
|
unsigned int palette[4];
|
|
unsigned int alpha[4];
|
|
unsigned int cuspal[4];
|
|
unsigned int custom;
|
|
unsigned int now_pts;
|
|
unsigned int start_pts, end_pts;
|
|
unsigned int start_col;
|
|
unsigned int start_row;
|
|
unsigned int width, height, stride;
|
|
size_t image_size; /* Size of the image buffer */
|
|
unsigned char *image; /* Grayscale value */
|
|
unsigned char *aimage; /* Alpha value */
|
|
unsigned int pal_start_col, pal_start_row;
|
|
unsigned int pal_width, pal_height;
|
|
unsigned char *pal_image; /* palette entry value */
|
|
unsigned int scaled_frame_width, scaled_frame_height;
|
|
unsigned int scaled_start_col, scaled_start_row;
|
|
unsigned int scaled_width, scaled_height, scaled_stride;
|
|
size_t scaled_image_size;
|
|
unsigned char *scaled_image;
|
|
unsigned char *scaled_aimage;
|
|
int auto_palette; /* 1 if we lack a palette and must use an heuristic. */
|
|
int font_start_level; /* Darkest value used for the computed font */
|
|
struct vo *hw_spu;
|
|
int spu_changed;
|
|
unsigned int forced_subs_only; /* flag: 0=display all subtitle, !0 display only forced subtitles */
|
|
unsigned int is_forced_sub; /* true if current subtitle is a forced subtitle */
|
|
|
|
struct palette_crop_cache palette_crop_cache;
|
|
} spudec_handle_t;
|
|
|
|
static void spudec_queue_packet(spudec_handle_t *this, packet_t *packet)
|
|
{
|
|
if (this->queue_head == NULL)
|
|
this->queue_head = packet;
|
|
else
|
|
this->queue_tail->next = packet;
|
|
this->queue_tail = packet;
|
|
}
|
|
|
|
static packet_t *spudec_dequeue_packet(spudec_handle_t *this)
|
|
{
|
|
packet_t *retval = this->queue_head;
|
|
|
|
this->queue_head = retval->next;
|
|
if (this->queue_head == NULL)
|
|
this->queue_tail = NULL;
|
|
|
|
return retval;
|
|
}
|
|
|
|
static void spudec_free_packet(packet_t *packet)
|
|
{
|
|
if (packet->packet != NULL)
|
|
free(packet->packet);
|
|
free(packet);
|
|
}
|
|
|
|
static inline unsigned int get_be16(const unsigned char *p)
|
|
{
|
|
return (p[0] << 8) + p[1];
|
|
}
|
|
|
|
static inline unsigned int get_be24(const unsigned char *p)
|
|
{
|
|
return (get_be16(p) << 8) + p[2];
|
|
}
|
|
|
|
static void next_line(packet_t *packet)
|
|
{
|
|
if (packet->current_nibble[packet->deinterlace_oddness] % 2)
|
|
packet->current_nibble[packet->deinterlace_oddness]++;
|
|
packet->deinterlace_oddness = (packet->deinterlace_oddness + 1) % 2;
|
|
}
|
|
|
|
static inline unsigned char get_nibble(packet_t *packet)
|
|
{
|
|
unsigned char nib;
|
|
unsigned int *nibblep = packet->current_nibble + packet->deinterlace_oddness;
|
|
if (*nibblep / 2 >= packet->control_start) {
|
|
mp_msg(MSGT_SPUDEC,MSGL_WARN, "SPUdec: ERROR: get_nibble past end of packet\n");
|
|
return 0;
|
|
}
|
|
nib = packet->packet[*nibblep / 2];
|
|
if (*nibblep % 2)
|
|
nib &= 0xf;
|
|
else
|
|
nib >>= 4;
|
|
++*nibblep;
|
|
return nib;
|
|
}
|
|
|
|
/* Cut the sub to visible part */
|
|
static inline void spudec_cut_image(spudec_handle_t *this)
|
|
{
|
|
unsigned int fy, ly;
|
|
unsigned int first_y, last_y;
|
|
|
|
if (this->stride == 0 || this->height == 0) {
|
|
return;
|
|
}
|
|
|
|
for (fy = 0; fy < this->image_size && !this->aimage[fy]; fy++);
|
|
for (ly = this->stride * this->height-1; ly && !this->aimage[ly]; ly--);
|
|
first_y = fy / this->stride;
|
|
last_y = ly / this->stride;
|
|
//printf("first_y: %d, last_y: %d\n", first_y, last_y);
|
|
this->start_row += first_y;
|
|
|
|
// Some subtitles trigger this condition
|
|
if (last_y + 1 > first_y ) {
|
|
this->height = last_y - first_y +1;
|
|
} else {
|
|
this->height = 0;
|
|
return;
|
|
}
|
|
|
|
// printf("new h %d new start %d (sz %d st %d)---\n\n", this->height, this->start_row, this->image_size, this->stride);
|
|
|
|
if (first_y > 0) {
|
|
memmove(this->image, this->image + this->stride * first_y, this->stride * this->height);
|
|
memmove(this->aimage, this->aimage + this->stride * first_y, this->stride * this->height);
|
|
}
|
|
}
|
|
|
|
|
|
static int spudec_alloc_image(spudec_handle_t *this, int stride, int height)
|
|
{
|
|
if (this->width > stride) // just a safeguard
|
|
this->width = stride;
|
|
this->stride = stride;
|
|
this->height = height;
|
|
if (this->image_size < this->stride * this->height) {
|
|
if (this->image != NULL) {
|
|
free(this->image);
|
|
free(this->pal_image);
|
|
this->image_size = 0;
|
|
this->pal_width = this->pal_height = 0;
|
|
}
|
|
this->image = malloc(2 * this->stride * this->height);
|
|
if (this->image) {
|
|
this->image_size = this->stride * this->height;
|
|
this->aimage = this->image + this->image_size;
|
|
// use stride here as well to simplify reallocation checks
|
|
this->pal_image = malloc(this->stride * this->height);
|
|
}
|
|
}
|
|
return this->image != NULL;
|
|
}
|
|
|
|
/**
|
|
* \param pal palette in MPlayer-style gray-alpha values, i.e.
|
|
* alpha == 0 means transparent, 1 fully opaque,
|
|
* gray value <= 256 - alpha.
|
|
*/
|
|
static void pal2gray_alpha(const uint16_t *pal,
|
|
const uint8_t *src, int src_stride,
|
|
uint8_t *dst, uint8_t *dsta,
|
|
int dst_stride, int w, int h)
|
|
{
|
|
int x, y;
|
|
for (y = 0; y < h; y++) {
|
|
for (x = 0; x < w; x++) {
|
|
uint16_t pixel = pal[src[x]];
|
|
*dst++ = pixel;
|
|
*dsta++ = pixel >> 8;
|
|
}
|
|
for (; x < dst_stride; x++)
|
|
*dsta++ = *dst++ = 0;
|
|
src += src_stride;
|
|
}
|
|
}
|
|
|
|
static int apply_palette_crop(spudec_handle_t *this,
|
|
unsigned crop_x, unsigned crop_y,
|
|
unsigned crop_w, unsigned crop_h)
|
|
{
|
|
int i;
|
|
uint8_t *src;
|
|
uint16_t pal[4];
|
|
unsigned stride = (crop_w + 7) & ~7;
|
|
if (crop_x > this->pal_width || crop_y > this->pal_height ||
|
|
crop_w > this->pal_width - crop_x || crop_h > this->pal_width - crop_y ||
|
|
crop_w > 0x8000 || crop_h > 0x8000 ||
|
|
stride * crop_h > this->image_size) {
|
|
return 0;
|
|
}
|
|
for (i = 0; i < 4; ++i) {
|
|
int color;
|
|
int alpha = this->alpha[i];
|
|
// extend 4 -> 8 bit
|
|
alpha |= alpha << 4;
|
|
if (this->custom && (this->cuspal[i] >> 31) != 0)
|
|
alpha = 0;
|
|
color = this->custom ? this->cuspal[i] :
|
|
this->global_palette[this->palette[i]];
|
|
color = (color >> 16) & 0xff;
|
|
// convert to MPlayer-style gray/alpha palette
|
|
color = FFMIN(color, alpha);
|
|
pal[i] = (-alpha << 8) | color;
|
|
}
|
|
src = this->pal_image + crop_y * this->pal_width + crop_x;
|
|
pal2gray_alpha(pal, src, this->pal_width,
|
|
this->image, this->aimage, stride,
|
|
crop_w, crop_h);
|
|
this->width = crop_w;
|
|
this->height = crop_h;
|
|
this->stride = stride;
|
|
this->start_col = this->pal_start_col + crop_x;
|
|
this->start_row = this->pal_start_row + crop_y;
|
|
spudec_cut_image(this);
|
|
|
|
// reset scaled image
|
|
this->scaled_frame_width = 0;
|
|
this->scaled_frame_height = 0;
|
|
this->palette_crop_cache.valid = 0;
|
|
return 1;
|
|
}
|
|
|
|
int spudec_apply_palette_crop(void *this, uint32_t palette,
|
|
int sx, int sy, int ex, int ey)
|
|
{
|
|
spudec_handle_t *spu = this;
|
|
struct palette_crop_cache *c = &spu->palette_crop_cache;
|
|
if (c->valid && c->palette == palette &&
|
|
c->sx == sx && c->sy == sy && c->ex == ex && c->ey == ey)
|
|
return c->result;
|
|
spu->palette[0] = (palette >> 28) & 0xf;
|
|
spu->palette[1] = (palette >> 24) & 0xf;
|
|
spu->palette[2] = (palette >> 20) & 0xf;
|
|
spu->palette[3] = (palette >> 16) & 0xf;
|
|
spu->alpha[0] = (palette >> 12) & 0xf;
|
|
spu->alpha[1] = (palette >> 8) & 0xf;
|
|
spu->alpha[2] = (palette >> 4) & 0xf;
|
|
spu->alpha[3] = palette & 0xf;
|
|
spu->spu_changed = 1;
|
|
c->result = apply_palette_crop(spu,
|
|
sx - spu->pal_start_col, sy - spu->pal_start_row,
|
|
ex - sx, ey - sy);
|
|
c->palette = palette;
|
|
c->sx = sx; c->sy = sy;
|
|
c->ex = ex; c->ey = ey;
|
|
c->valid = 1;
|
|
return c->result;
|
|
}
|
|
|
|
static void spudec_process_data(spudec_handle_t *this, packet_t *packet)
|
|
{
|
|
unsigned int i, x, y;
|
|
uint8_t *dst;
|
|
|
|
if (!spudec_alloc_image(this, packet->stride, packet->height))
|
|
return;
|
|
|
|
this->pal_start_col = packet->start_col;
|
|
this->pal_start_row = packet->start_row;
|
|
this->pal_height = packet->height;
|
|
this->pal_width = packet->width;
|
|
this->stride = packet->stride;
|
|
memcpy(this->palette, packet->palette, sizeof(this->palette));
|
|
memcpy(this->alpha, packet->alpha, sizeof(this->alpha));
|
|
|
|
i = packet->current_nibble[1];
|
|
x = 0;
|
|
y = 0;
|
|
dst = this->pal_image;
|
|
while (packet->current_nibble[0] < i
|
|
&& packet->current_nibble[1] / 2 < packet->control_start
|
|
&& y < this->pal_height) {
|
|
unsigned int len, color;
|
|
unsigned int rle = 0;
|
|
rle = get_nibble(packet);
|
|
if (rle < 0x04) {
|
|
if (rle == 0) {
|
|
rle = (rle << 4) | get_nibble(packet);
|
|
if (rle < 0x04)
|
|
rle = (rle << 4) | get_nibble(packet);
|
|
}
|
|
rle = (rle << 4) | get_nibble(packet);
|
|
}
|
|
color = 3 - (rle & 0x3);
|
|
len = rle >> 2;
|
|
x += len;
|
|
if (len == 0 || x >= this->pal_width) {
|
|
len += this->pal_width - x;
|
|
next_line(packet);
|
|
x = 0;
|
|
++y;
|
|
}
|
|
memset(dst, color, len);
|
|
dst += len;
|
|
}
|
|
apply_palette_crop(this, 0, 0, this->pal_width, this->pal_height);
|
|
}
|
|
|
|
|
|
/*
|
|
This function tries to create a usable palette.
|
|
It determines how many non-transparent colors are used, and assigns different
|
|
gray scale values to each color.
|
|
I tested it with four streams and even got something readable. Half of the
|
|
times I got black characters with white around and half the reverse.
|
|
*/
|
|
static void compute_palette(spudec_handle_t *this, packet_t *packet)
|
|
{
|
|
int used[16],i,cused,start,step,color;
|
|
|
|
memset(used, 0, sizeof(used));
|
|
for (i=0; i<4; i++)
|
|
if (packet->alpha[i]) /* !Transparent? */
|
|
used[packet->palette[i]] = 1;
|
|
for (cused=0, i=0; i<16; i++)
|
|
if (used[i]) cused++;
|
|
if (!cused) return;
|
|
if (cused == 1) {
|
|
start = 0x80;
|
|
step = 0;
|
|
} else {
|
|
start = this->font_start_level;
|
|
step = (0xF0-this->font_start_level)/(cused-1);
|
|
}
|
|
memset(used, 0, sizeof(used));
|
|
for (i=0; i<4; i++) {
|
|
color = packet->palette[i];
|
|
if (packet->alpha[i] && !used[color]) { /* not assigned? */
|
|
used[color] = 1;
|
|
this->global_palette[color] = start<<16;
|
|
start += step;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void spudec_process_control(spudec_handle_t *this, int pts100)
|
|
{
|
|
int a,b,c,d; /* Temporary vars */
|
|
unsigned int date, type;
|
|
unsigned int off;
|
|
unsigned int start_off = 0;
|
|
unsigned int next_off;
|
|
unsigned int start_pts = 0;
|
|
unsigned int end_pts = 0;
|
|
unsigned int current_nibble[2] = {0, 0};
|
|
unsigned int control_start;
|
|
unsigned int display = 0;
|
|
unsigned int start_col = 0;
|
|
unsigned int end_col = 0;
|
|
unsigned int start_row = 0;
|
|
unsigned int end_row = 0;
|
|
unsigned int width = 0;
|
|
unsigned int height = 0;
|
|
unsigned int stride = 0;
|
|
|
|
control_start = get_be16(this->packet + 2);
|
|
next_off = control_start;
|
|
while (start_off != next_off) {
|
|
start_off = next_off;
|
|
date = get_be16(this->packet + start_off) * 1024;
|
|
next_off = get_be16(this->packet + start_off + 2);
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2, "date=%d\n", date);
|
|
off = start_off + 4;
|
|
for (type = this->packet[off++]; type != 0xff; type = this->packet[off++]) {
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2, "cmd=%d ",type);
|
|
switch(type) {
|
|
case 0x00:
|
|
/* Menu ID, 1 byte */
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Menu ID\n");
|
|
/* shouldn't a Menu ID type force display start? */
|
|
start_pts = pts100 < 0 && -pts100 >= date ? 0 : pts100 + date;
|
|
end_pts = UINT_MAX;
|
|
display = 1;
|
|
this->is_forced_sub=~0; // current subtitle is forced
|
|
break;
|
|
case 0x01:
|
|
/* Start display */
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Start display!\n");
|
|
start_pts = pts100 < 0 && -pts100 >= date ? 0 : pts100 + date;
|
|
end_pts = UINT_MAX;
|
|
display = 1;
|
|
this->is_forced_sub=0;
|
|
break;
|
|
case 0x02:
|
|
/* Stop display */
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Stop display!\n");
|
|
end_pts = pts100 < 0 && -pts100 >= date ? 0 : pts100 + date;
|
|
break;
|
|
case 0x03:
|
|
/* Palette */
|
|
this->palette[0] = this->packet[off] >> 4;
|
|
this->palette[1] = this->packet[off] & 0xf;
|
|
this->palette[2] = this->packet[off + 1] >> 4;
|
|
this->palette[3] = this->packet[off + 1] & 0xf;
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Palette %d, %d, %d, %d\n",
|
|
this->palette[0], this->palette[1], this->palette[2], this->palette[3]);
|
|
off+=2;
|
|
break;
|
|
case 0x04:
|
|
/* Alpha */
|
|
a = this->packet[off] >> 4;
|
|
b = this->packet[off] & 0xf;
|
|
c = this->packet[off + 1] >> 4;
|
|
d = this->packet[off + 1] & 0xf;
|
|
// Note: some DVDs change these values to create a fade-in/fade-out effect
|
|
// We can not handle this, so just keep the highest value during the display time.
|
|
if (display) {
|
|
a = FFMAX(a, this->alpha[0]);
|
|
b = FFMAX(b, this->alpha[1]);
|
|
c = FFMAX(c, this->alpha[2]);
|
|
d = FFMAX(d, this->alpha[3]);
|
|
}
|
|
this->alpha[0] = a;
|
|
this->alpha[1] = b;
|
|
this->alpha[2] = c;
|
|
this->alpha[3] = d;
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Alpha %d, %d, %d, %d\n",
|
|
this->alpha[0], this->alpha[1], this->alpha[2], this->alpha[3]);
|
|
off+=2;
|
|
break;
|
|
case 0x05:
|
|
/* Co-ords */
|
|
a = get_be24(this->packet + off);
|
|
b = get_be24(this->packet + off + 3);
|
|
start_col = a >> 12;
|
|
end_col = a & 0xfff;
|
|
width = (end_col < start_col) ? 0 : end_col - start_col + 1;
|
|
stride = (width + 7) & ~7; /* Kludge: draw_alpha needs width multiple of 8 */
|
|
start_row = b >> 12;
|
|
end_row = b & 0xfff;
|
|
height = (end_row < start_row) ? 0 : end_row - start_row /* + 1 */;
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Coords col: %d - %d row: %d - %d (%dx%d)\n",
|
|
start_col, end_col, start_row, end_row,
|
|
width, height);
|
|
off+=6;
|
|
break;
|
|
case 0x06:
|
|
/* Graphic lines */
|
|
current_nibble[0] = 2 * get_be16(this->packet + off);
|
|
current_nibble[1] = 2 * get_be16(this->packet + off + 2);
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Graphic offset 1: %d offset 2: %d\n",
|
|
current_nibble[0] / 2, current_nibble[1] / 2);
|
|
off+=4;
|
|
break;
|
|
case 0xff:
|
|
/* All done, bye-bye */
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Done!\n");
|
|
return;
|
|
// break;
|
|
default:
|
|
mp_msg(MSGT_SPUDEC,MSGL_WARN,"spudec: Error determining control type 0x%02x. Skipping %d bytes.\n",
|
|
type, next_off - off);
|
|
goto next_control;
|
|
}
|
|
}
|
|
next_control:
|
|
if (!display)
|
|
continue;
|
|
if (end_pts == UINT_MAX && start_off != next_off) {
|
|
end_pts = get_be16(this->packet + next_off) * 1024;
|
|
end_pts = 1 - pts100 >= end_pts ? 0 : pts100 + end_pts - 1;
|
|
}
|
|
if (end_pts > 0) {
|
|
packet_t *packet = calloc(1, sizeof(packet_t));
|
|
int i;
|
|
packet->start_pts = start_pts;
|
|
packet->end_pts = end_pts;
|
|
packet->current_nibble[0] = current_nibble[0];
|
|
packet->current_nibble[1] = current_nibble[1];
|
|
packet->start_row = start_row;
|
|
packet->start_col = start_col;
|
|
packet->width = width;
|
|
packet->height = height;
|
|
packet->stride = stride;
|
|
packet->control_start = control_start;
|
|
for (i=0; i<4; i++) {
|
|
packet->alpha[i] = this->alpha[i];
|
|
packet->palette[i] = this->palette[i];
|
|
}
|
|
packet->packet = malloc(this->packet_size);
|
|
memcpy(packet->packet, this->packet, this->packet_size);
|
|
spudec_queue_packet(this, packet);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void spudec_decode(spudec_handle_t *this, int pts100)
|
|
{
|
|
if (!this->hw_spu)
|
|
spudec_process_control(this, pts100);
|
|
else if (pts100 >= 0) {
|
|
static vo_mpegpes_t packet = { NULL, 0, 0x20, 0 };
|
|
static vo_mpegpes_t *pkg=&packet;
|
|
packet.data = this->packet;
|
|
packet.size = this->packet_size;
|
|
packet.timestamp = pts100;
|
|
vo_draw_frame(this->hw_spu, (uint8_t**)&pkg);
|
|
}
|
|
}
|
|
|
|
int spudec_changed(void * this)
|
|
{
|
|
spudec_handle_t * spu = this;
|
|
return spu->spu_changed || spu->now_pts > spu->end_pts;
|
|
}
|
|
|
|
void spudec_assemble(void *this, unsigned char *packet, unsigned int len, int pts100)
|
|
{
|
|
spudec_handle_t *spu = this;
|
|
// spudec_heartbeat(this, pts100);
|
|
if (len < 2) {
|
|
mp_msg(MSGT_SPUDEC,MSGL_WARN,"SPUasm: packet too short\n");
|
|
return;
|
|
}
|
|
spu->packet_pts = pts100;
|
|
if (spu->packet_offset == 0) {
|
|
unsigned int len2 = get_be16(packet);
|
|
// Start new fragment
|
|
if (spu->packet_reserve < len2) {
|
|
if (spu->packet != NULL)
|
|
free(spu->packet);
|
|
spu->packet = malloc(len2);
|
|
spu->packet_reserve = spu->packet != NULL ? len2 : 0;
|
|
}
|
|
if (spu->packet != NULL) {
|
|
spu->packet_size = len2;
|
|
if (len > len2) {
|
|
mp_msg(MSGT_SPUDEC,MSGL_WARN,"SPUasm: invalid frag len / len2: %d / %d \n", len, len2);
|
|
return;
|
|
}
|
|
memcpy(spu->packet, packet, len);
|
|
spu->packet_offset = len;
|
|
spu->packet_pts = pts100;
|
|
}
|
|
} else {
|
|
// Continue current fragment
|
|
if (spu->packet_size < spu->packet_offset + len){
|
|
mp_msg(MSGT_SPUDEC,MSGL_WARN,"SPUasm: invalid fragment\n");
|
|
spu->packet_size = spu->packet_offset = 0;
|
|
return;
|
|
} else {
|
|
memcpy(spu->packet + spu->packet_offset, packet, len);
|
|
spu->packet_offset += len;
|
|
}
|
|
}
|
|
#if 1
|
|
// check if we have a complete packet (unfortunatelly packet_size is bad
|
|
// for some disks)
|
|
// [cb] packet_size is padded to be even -> may be one byte too long
|
|
if ((spu->packet_offset == spu->packet_size) ||
|
|
((spu->packet_offset + 1) == spu->packet_size)){
|
|
unsigned int x=0,y;
|
|
while(x+4<=spu->packet_offset){
|
|
y=get_be16(spu->packet+x+2); // next control pointer
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2,"SPUtest: x=%d y=%d off=%d size=%d\n",x,y,spu->packet_offset,spu->packet_size);
|
|
if(x>=4 && x==y){ // if it points to self - we're done!
|
|
// we got it!
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2,"SPUgot: off=%d size=%d \n",spu->packet_offset,spu->packet_size);
|
|
spudec_decode(spu, pts100);
|
|
spu->packet_offset = 0;
|
|
break;
|
|
}
|
|
if(y<=x || y>=spu->packet_size){ // invalid?
|
|
mp_msg(MSGT_SPUDEC,MSGL_WARN,"SPUtest: broken packet!!!!! y=%d < x=%d\n",y,x);
|
|
spu->packet_size = spu->packet_offset = 0;
|
|
break;
|
|
}
|
|
x=y;
|
|
}
|
|
// [cb] packet is done; start new packet
|
|
spu->packet_offset = 0;
|
|
}
|
|
#else
|
|
if (spu->packet_offset == spu->packet_size) {
|
|
spudec_decode(spu, pts100);
|
|
spu->packet_offset = 0;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void spudec_reset(void *this) // called after seek
|
|
{
|
|
spudec_handle_t *spu = this;
|
|
while (spu->queue_head)
|
|
spudec_free_packet(spudec_dequeue_packet(spu));
|
|
spu->now_pts = 0;
|
|
spu->end_pts = 0;
|
|
spu->packet_size = spu->packet_offset = 0;
|
|
}
|
|
|
|
void spudec_heartbeat(void *this, unsigned int pts100)
|
|
{
|
|
spudec_handle_t *spu = this;
|
|
spu->now_pts = pts100;
|
|
|
|
// TODO: detect and handle broken timestamps (e.g. due to wrapping)
|
|
while (spu->queue_head != NULL && pts100 >= spu->queue_head->start_pts) {
|
|
packet_t *packet = spudec_dequeue_packet(spu);
|
|
spu->start_pts = packet->start_pts;
|
|
spu->end_pts = packet->end_pts;
|
|
if (packet->is_decoded) {
|
|
free(spu->image);
|
|
spu->image_size = packet->data_len;
|
|
spu->image = packet->packet;
|
|
spu->aimage = packet->packet + packet->stride * packet->height;
|
|
packet->packet = NULL;
|
|
spu->width = packet->width;
|
|
spu->height = packet->height;
|
|
spu->stride = packet->stride;
|
|
spu->start_col = packet->start_col;
|
|
spu->start_row = packet->start_row;
|
|
|
|
// reset scaled image
|
|
spu->scaled_frame_width = 0;
|
|
spu->scaled_frame_height = 0;
|
|
} else {
|
|
if (spu->auto_palette)
|
|
compute_palette(spu, packet);
|
|
spudec_process_data(spu, packet);
|
|
}
|
|
spudec_free_packet(packet);
|
|
spu->spu_changed = 1;
|
|
}
|
|
}
|
|
|
|
int spudec_visible(void *this){
|
|
spudec_handle_t *spu = this;
|
|
int ret=(spu->start_pts <= spu->now_pts &&
|
|
spu->now_pts < spu->end_pts &&
|
|
spu->height > 0);
|
|
// printf("spu visible: %d \n",ret);
|
|
return ret;
|
|
}
|
|
|
|
void spudec_set_forced_subs_only(void * const this, const unsigned int flag)
|
|
{
|
|
if(this){
|
|
((spudec_handle_t *)this)->forced_subs_only=flag;
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2,"SPU: Display only forced subs now %s\n", flag ? "enabled": "disabled");
|
|
}
|
|
}
|
|
|
|
void spudec_draw(void *this, void (*draw_alpha)(void *ctx, int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride), void *ctx)
|
|
{
|
|
spudec_handle_t *spu = this;
|
|
if (spudec_visible(spu))
|
|
{
|
|
draw_alpha(ctx, spu->start_col, spu->start_row, spu->width, spu->height,
|
|
spu->image, spu->aimage, spu->stride);
|
|
spu->spu_changed = 0;
|
|
}
|
|
}
|
|
|
|
/* calc the bbox for spudec subs */
|
|
void spudec_calc_bbox(void *me, unsigned int dxs, unsigned int dys, unsigned int* bbox)
|
|
{
|
|
spudec_handle_t *spu = me;
|
|
if (spu->orig_frame_width == 0 || spu->orig_frame_height == 0
|
|
|| (spu->orig_frame_width == dxs && spu->orig_frame_height == dys)) {
|
|
// unscaled
|
|
bbox[0] = spu->start_col;
|
|
bbox[1] = spu->start_col + spu->width;
|
|
bbox[2] = spu->start_row;
|
|
bbox[3] = spu->start_row + spu->height;
|
|
}
|
|
else {
|
|
// scaled
|
|
unsigned int scalex = 0x100 * dxs / spu->orig_frame_width;
|
|
unsigned int scaley = 0x100 * dys / spu->orig_frame_height;
|
|
bbox[0] = spu->start_col * scalex / 0x100;
|
|
bbox[1] = spu->start_col * scalex / 0x100 + spu->width * scalex / 0x100;
|
|
switch (spu_alignment) {
|
|
case 0:
|
|
bbox[3] = dys*sub_pos/100 + spu->height * scaley / 0x100;
|
|
if (bbox[3] > dys) bbox[3] = dys;
|
|
bbox[2] = bbox[3] - spu->height * scaley / 0x100;
|
|
break;
|
|
case 1:
|
|
if (sub_pos < 50) {
|
|
bbox[2] = dys*sub_pos/100 - spu->height * scaley / 0x200;
|
|
bbox[3] = bbox[2] + spu->height;
|
|
} else {
|
|
bbox[3] = dys*sub_pos/100 + spu->height * scaley / 0x200;
|
|
if (bbox[3] > dys) bbox[3] = dys;
|
|
bbox[2] = bbox[3] - spu->height * scaley / 0x100;
|
|
}
|
|
break;
|
|
case 2:
|
|
bbox[2] = dys*sub_pos/100 - spu->height * scaley / 0x100;
|
|
bbox[3] = bbox[2] + spu->height;
|
|
break;
|
|
default: /* -1 */
|
|
bbox[2] = spu->start_row * scaley / 0x100;
|
|
bbox[3] = spu->start_row * scaley / 0x100 + spu->height * scaley / 0x100;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
/* transform mplayer's alpha value into an opacity value that is linear */
|
|
static inline int canon_alpha(int alpha)
|
|
{
|
|
return (uint8_t)-alpha;
|
|
}
|
|
|
|
typedef struct {
|
|
unsigned position;
|
|
unsigned left_up;
|
|
unsigned right_down;
|
|
}scale_pixel;
|
|
|
|
|
|
static void scale_table(unsigned int start_src, unsigned int start_tar, unsigned int end_src, unsigned int end_tar, scale_pixel * table)
|
|
{
|
|
unsigned int t;
|
|
unsigned int delta_src = end_src - start_src;
|
|
unsigned int delta_tar = end_tar - start_tar;
|
|
int src = 0;
|
|
int src_step;
|
|
if (delta_src == 0 || delta_tar == 0) {
|
|
return;
|
|
}
|
|
src_step = (delta_src << 16) / delta_tar >>1;
|
|
for (t = 0; t<=delta_tar; src += (src_step << 1), t++){
|
|
table[t].position= FFMIN(src >> 16, end_src - 1);
|
|
table[t].right_down = src & 0xffff;
|
|
table[t].left_up = 0x10000 - table[t].right_down;
|
|
}
|
|
}
|
|
|
|
/* bilinear scale, similar to vobsub's code */
|
|
static void scale_image(int x, int y, scale_pixel* table_x, scale_pixel* table_y, spudec_handle_t * spu)
|
|
{
|
|
int alpha[4];
|
|
int color[4];
|
|
unsigned int scale[4];
|
|
int base = table_y[y].position * spu->stride + table_x[x].position;
|
|
int scaled = y * spu->scaled_stride + x;
|
|
alpha[0] = canon_alpha(spu->aimage[base]);
|
|
alpha[1] = canon_alpha(spu->aimage[base + 1]);
|
|
alpha[2] = canon_alpha(spu->aimage[base + spu->stride]);
|
|
alpha[3] = canon_alpha(spu->aimage[base + spu->stride + 1]);
|
|
color[0] = spu->image[base];
|
|
color[1] = spu->image[base + 1];
|
|
color[2] = spu->image[base + spu->stride];
|
|
color[3] = spu->image[base + spu->stride + 1];
|
|
scale[0] = (table_x[x].left_up * table_y[y].left_up >> 16) * alpha[0];
|
|
if (table_y[y].left_up == 0x10000) // necessary to avoid overflow-case
|
|
scale[0] = table_x[x].left_up * alpha[0];
|
|
scale[1] = (table_x[x].right_down * table_y[y].left_up >>16) * alpha[1];
|
|
scale[2] = (table_x[x].left_up * table_y[y].right_down >> 16) * alpha[2];
|
|
scale[3] = (table_x[x].right_down * table_y[y].right_down >> 16) * alpha[3];
|
|
spu->scaled_image[scaled] = (color[0] * scale[0] + color[1] * scale[1] + color[2] * scale[2] + color[3] * scale[3])>>24;
|
|
spu->scaled_aimage[scaled] = (scale[0] + scale[1] + scale[2] + scale[3]) >> 16;
|
|
if (spu->scaled_aimage[scaled]){
|
|
// ensure that MPlayer's simplified alpha-blending can not overflow
|
|
spu->scaled_image[scaled] = FFMIN(spu->scaled_image[scaled], spu->scaled_aimage[scaled]);
|
|
// convert to MPlayer-style alpha
|
|
spu->scaled_aimage[scaled] = -spu->scaled_aimage[scaled];
|
|
}
|
|
}
|
|
|
|
static void sws_spu_image(unsigned char *d1, unsigned char *d2, int dw, int dh,
|
|
int ds, const unsigned char* s1, unsigned char* s2,
|
|
int sw, int sh, int ss)
|
|
{
|
|
struct SwsContext *ctx;
|
|
static SwsFilter filter;
|
|
static int firsttime = 1;
|
|
static float oldvar;
|
|
int i;
|
|
|
|
if (!firsttime && oldvar != spu_gaussvar) sws_freeVec(filter.lumH);
|
|
if (firsttime) {
|
|
filter.lumH = filter.lumV =
|
|
filter.chrH = filter.chrV = sws_getGaussianVec(spu_gaussvar, 3.0);
|
|
sws_normalizeVec(filter.lumH, 1.0);
|
|
firsttime = 0;
|
|
oldvar = spu_gaussvar;
|
|
}
|
|
|
|
ctx=sws_getContext(sw, sh, PIX_FMT_GRAY8, dw, dh, PIX_FMT_GRAY8, SWS_GAUSS, &filter, NULL, NULL);
|
|
sws_scale(ctx,&s1,&ss,0,sh,&d1,&ds);
|
|
for (i=ss*sh-1; i>=0; i--) if (!s2[i]) s2[i] = 255; //else s2[i] = 1;
|
|
sws_scale(ctx,&s2,&ss,0,sh,&d2,&ds);
|
|
for (i=ds*dh-1; i>=0; i--) if (d2[i]==0) d2[i] = 1; else if (d2[i]==255) d2[i] = 0;
|
|
sws_freeContext(ctx);
|
|
}
|
|
|
|
void spudec_draw_scaled(void *me, unsigned int dxs, unsigned int dys, void (*draw_alpha)(void *ctx, int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride), void *ctx)
|
|
{
|
|
spudec_handle_t *spu = me;
|
|
scale_pixel *table_x;
|
|
scale_pixel *table_y;
|
|
|
|
if (spudec_visible(spu)) {
|
|
|
|
// check if only forced subtitles are requested
|
|
if( (spu->forced_subs_only) && !(spu->is_forced_sub) ){
|
|
return;
|
|
}
|
|
|
|
if (!(spu_aamode&16) && (spu->orig_frame_width == 0 || spu->orig_frame_height == 0
|
|
|| (spu->orig_frame_width == dxs && spu->orig_frame_height == dys))) {
|
|
spudec_draw(spu, draw_alpha, ctx);
|
|
}
|
|
else {
|
|
if (spu->scaled_frame_width != dxs || spu->scaled_frame_height != dys) { /* Resizing is needed */
|
|
/* scaled_x = scalex * x / 0x100
|
|
scaled_y = scaley * y / 0x100
|
|
order of operations is important because of rounding. */
|
|
unsigned int scalex = 0x100 * dxs / spu->orig_frame_width;
|
|
unsigned int scaley = 0x100 * dys / spu->orig_frame_height;
|
|
spu->scaled_start_col = spu->start_col * scalex / 0x100;
|
|
spu->scaled_start_row = spu->start_row * scaley / 0x100;
|
|
spu->scaled_width = spu->width * scalex / 0x100;
|
|
spu->scaled_height = spu->height * scaley / 0x100;
|
|
/* Kludge: draw_alpha needs width multiple of 8 */
|
|
spu->scaled_stride = (spu->scaled_width + 7) & ~7;
|
|
if (spu->scaled_image_size < spu->scaled_stride * spu->scaled_height) {
|
|
if (spu->scaled_image) {
|
|
free(spu->scaled_image);
|
|
spu->scaled_image_size = 0;
|
|
}
|
|
spu->scaled_image = malloc(2 * spu->scaled_stride * spu->scaled_height);
|
|
if (spu->scaled_image) {
|
|
spu->scaled_image_size = spu->scaled_stride * spu->scaled_height;
|
|
spu->scaled_aimage = spu->scaled_image + spu->scaled_image_size;
|
|
}
|
|
}
|
|
if (spu->scaled_image) {
|
|
unsigned int x, y;
|
|
if (spu->scaled_width <= 1 || spu->scaled_height <= 1) {
|
|
goto nothing_to_do;
|
|
}
|
|
switch(spu_aamode&15) {
|
|
case 4:
|
|
sws_spu_image(spu->scaled_image, spu->scaled_aimage,
|
|
spu->scaled_width, spu->scaled_height, spu->scaled_stride,
|
|
spu->image, spu->aimage, spu->width, spu->height, spu->stride);
|
|
break;
|
|
case 3:
|
|
table_x = calloc(spu->scaled_width, sizeof(scale_pixel));
|
|
table_y = calloc(spu->scaled_height, sizeof(scale_pixel));
|
|
if (!table_x || !table_y) {
|
|
mp_msg(MSGT_SPUDEC, MSGL_FATAL, "Fatal: spudec_draw_scaled: calloc failed\n");
|
|
}
|
|
scale_table(0, 0, spu->width - 1, spu->scaled_width - 1, table_x);
|
|
scale_table(0, 0, spu->height - 1, spu->scaled_height - 1, table_y);
|
|
for (y = 0; y < spu->scaled_height; y++)
|
|
for (x = 0; x < spu->scaled_width; x++)
|
|
scale_image(x, y, table_x, table_y, spu);
|
|
free(table_x);
|
|
free(table_y);
|
|
break;
|
|
case 0:
|
|
/* no antialiasing */
|
|
for (y = 0; y < spu->scaled_height; ++y) {
|
|
int unscaled_y = y * 0x100 / scaley;
|
|
int strides = spu->stride * unscaled_y;
|
|
int scaled_strides = spu->scaled_stride * y;
|
|
for (x = 0; x < spu->scaled_width; ++x) {
|
|
int unscaled_x = x * 0x100 / scalex;
|
|
spu->scaled_image[scaled_strides + x] = spu->image[strides + unscaled_x];
|
|
spu->scaled_aimage[scaled_strides + x] = spu->aimage[strides + unscaled_x];
|
|
}
|
|
}
|
|
break;
|
|
case 1:
|
|
{
|
|
/* Intermediate antialiasing. */
|
|
for (y = 0; y < spu->scaled_height; ++y) {
|
|
const unsigned int unscaled_top = y * spu->orig_frame_height / dys;
|
|
unsigned int unscaled_bottom = (y + 1) * spu->orig_frame_height / dys;
|
|
if (unscaled_bottom >= spu->height)
|
|
unscaled_bottom = spu->height - 1;
|
|
for (x = 0; x < spu->scaled_width; ++x) {
|
|
const unsigned int unscaled_left = x * spu->orig_frame_width / dxs;
|
|
unsigned int unscaled_right = (x + 1) * spu->orig_frame_width / dxs;
|
|
unsigned int color = 0;
|
|
unsigned int alpha = 0;
|
|
unsigned int walkx, walky;
|
|
unsigned int base, tmp;
|
|
if (unscaled_right >= spu->width)
|
|
unscaled_right = spu->width - 1;
|
|
for (walky = unscaled_top; walky <= unscaled_bottom; ++walky)
|
|
for (walkx = unscaled_left; walkx <= unscaled_right; ++walkx) {
|
|
base = walky * spu->stride + walkx;
|
|
tmp = canon_alpha(spu->aimage[base]);
|
|
alpha += tmp;
|
|
color += tmp * spu->image[base];
|
|
}
|
|
base = y * spu->scaled_stride + x;
|
|
spu->scaled_image[base] = alpha ? color / alpha : 0;
|
|
spu->scaled_aimage[base] =
|
|
alpha * (1 + unscaled_bottom - unscaled_top) * (1 + unscaled_right - unscaled_left);
|
|
/* spu->scaled_aimage[base] =
|
|
alpha * dxs * dys / spu->orig_frame_width / spu->orig_frame_height; */
|
|
if (spu->scaled_aimage[base]) {
|
|
spu->scaled_aimage[base] = 256 - spu->scaled_aimage[base];
|
|
if (spu->scaled_aimage[base] + spu->scaled_image[base] > 255)
|
|
spu->scaled_image[base] = 256 - spu->scaled_aimage[base];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
{
|
|
/* Best antialiasing. Very slow. */
|
|
/* Any pixel (x, y) represents pixels from the original
|
|
rectangular region comprised between the columns
|
|
unscaled_y and unscaled_y + 0x100 / scaley and the rows
|
|
unscaled_x and unscaled_x + 0x100 / scalex
|
|
|
|
The original rectangular region that the scaled pixel
|
|
represents is cut in 9 rectangular areas like this:
|
|
|
|
+---+-----------------+---+
|
|
| 1 | 2 | 3 |
|
|
+---+-----------------+---+
|
|
| | | |
|
|
| 4 | 5 | 6 |
|
|
| | | |
|
|
+---+-----------------+---+
|
|
| 7 | 8 | 9 |
|
|
+---+-----------------+---+
|
|
|
|
The width of the left column is at most one pixel and
|
|
it is never null and its right column is at a pixel
|
|
boundary. The height of the top row is at most one
|
|
pixel it is never null and its bottom row is at a
|
|
pixel boundary. The width and height of region 5 are
|
|
integral values. The width of the right column is
|
|
what remains and is less than one pixel. The height
|
|
of the bottom row is what remains and is less than
|
|
one pixel.
|
|
|
|
The row above 1, 2, 3 is unscaled_y. The row between
|
|
1, 2, 3 and 4, 5, 6 is top_low_row. The row between 4,
|
|
5, 6 and 7, 8, 9 is (unsigned int)unscaled_y_bottom.
|
|
The row beneath 7, 8, 9 is unscaled_y_bottom.
|
|
|
|
The column left of 1, 4, 7 is unscaled_x. The column
|
|
between 1, 4, 7 and 2, 5, 8 is left_right_column. The
|
|
column between 2, 5, 8 and 3, 6, 9 is (unsigned
|
|
int)unscaled_x_right. The column right of 3, 6, 9 is
|
|
unscaled_x_right. */
|
|
const double inv_scalex = (double) 0x100 / scalex;
|
|
const double inv_scaley = (double) 0x100 / scaley;
|
|
for (y = 0; y < spu->scaled_height; ++y) {
|
|
const double unscaled_y = y * inv_scaley;
|
|
const double unscaled_y_bottom = unscaled_y + inv_scaley;
|
|
const unsigned int top_low_row = FFMIN(unscaled_y_bottom, unscaled_y + 1.0);
|
|
const double top = top_low_row - unscaled_y;
|
|
const unsigned int height = unscaled_y_bottom > top_low_row
|
|
? (unsigned int) unscaled_y_bottom - top_low_row
|
|
: 0;
|
|
const double bottom = unscaled_y_bottom > top_low_row
|
|
? unscaled_y_bottom - floor(unscaled_y_bottom)
|
|
: 0.0;
|
|
for (x = 0; x < spu->scaled_width; ++x) {
|
|
const double unscaled_x = x * inv_scalex;
|
|
const double unscaled_x_right = unscaled_x + inv_scalex;
|
|
const unsigned int left_right_column = FFMIN(unscaled_x_right, unscaled_x + 1.0);
|
|
const double left = left_right_column - unscaled_x;
|
|
const unsigned int width = unscaled_x_right > left_right_column
|
|
? (unsigned int) unscaled_x_right - left_right_column
|
|
: 0;
|
|
const double right = unscaled_x_right > left_right_column
|
|
? unscaled_x_right - floor(unscaled_x_right)
|
|
: 0.0;
|
|
double color = 0.0;
|
|
double alpha = 0.0;
|
|
double tmp;
|
|
unsigned int base;
|
|
/* Now use these informations to compute a good alpha,
|
|
and lightness. The sum is on each of the 9
|
|
region's surface and alpha and lightness.
|
|
|
|
transformed alpha = sum(surface * alpha) / sum(surface)
|
|
transformed color = sum(surface * alpha * color) / sum(surface * alpha)
|
|
*/
|
|
/* 1: top left part */
|
|
base = spu->stride * (unsigned int) unscaled_y;
|
|
tmp = left * top * canon_alpha(spu->aimage[base + (unsigned int) unscaled_x]);
|
|
alpha += tmp;
|
|
color += tmp * spu->image[base + (unsigned int) unscaled_x];
|
|
/* 2: top center part */
|
|
if (width > 0) {
|
|
unsigned int walkx;
|
|
for (walkx = left_right_column; walkx < (unsigned int) unscaled_x_right; ++walkx) {
|
|
base = spu->stride * (unsigned int) unscaled_y + walkx;
|
|
tmp = /* 1.0 * */ top * canon_alpha(spu->aimage[base]);
|
|
alpha += tmp;
|
|
color += tmp * spu->image[base];
|
|
}
|
|
}
|
|
/* 3: top right part */
|
|
if (right > 0.0) {
|
|
base = spu->stride * (unsigned int) unscaled_y + (unsigned int) unscaled_x_right;
|
|
tmp = right * top * canon_alpha(spu->aimage[base]);
|
|
alpha += tmp;
|
|
color += tmp * spu->image[base];
|
|
}
|
|
/* 4: center left part */
|
|
if (height > 0) {
|
|
unsigned int walky;
|
|
for (walky = top_low_row; walky < (unsigned int) unscaled_y_bottom; ++walky) {
|
|
base = spu->stride * walky + (unsigned int) unscaled_x;
|
|
tmp = left /* * 1.0 */ * canon_alpha(spu->aimage[base]);
|
|
alpha += tmp;
|
|
color += tmp * spu->image[base];
|
|
}
|
|
}
|
|
/* 5: center part */
|
|
if (width > 0 && height > 0) {
|
|
unsigned int walky;
|
|
for (walky = top_low_row; walky < (unsigned int) unscaled_y_bottom; ++walky) {
|
|
unsigned int walkx;
|
|
base = spu->stride * walky;
|
|
for (walkx = left_right_column; walkx < (unsigned int) unscaled_x_right; ++walkx) {
|
|
tmp = /* 1.0 * 1.0 * */ canon_alpha(spu->aimage[base + walkx]);
|
|
alpha += tmp;
|
|
color += tmp * spu->image[base + walkx];
|
|
}
|
|
}
|
|
}
|
|
/* 6: center right part */
|
|
if (right > 0.0 && height > 0) {
|
|
unsigned int walky;
|
|
for (walky = top_low_row; walky < (unsigned int) unscaled_y_bottom; ++walky) {
|
|
base = spu->stride * walky + (unsigned int) unscaled_x_right;
|
|
tmp = right /* * 1.0 */ * canon_alpha(spu->aimage[base]);
|
|
alpha += tmp;
|
|
color += tmp * spu->image[base];
|
|
}
|
|
}
|
|
/* 7: bottom left part */
|
|
if (bottom > 0.0) {
|
|
base = spu->stride * (unsigned int) unscaled_y_bottom + (unsigned int) unscaled_x;
|
|
tmp = left * bottom * canon_alpha(spu->aimage[base]);
|
|
alpha += tmp;
|
|
color += tmp * spu->image[base];
|
|
}
|
|
/* 8: bottom center part */
|
|
if (width > 0 && bottom > 0.0) {
|
|
unsigned int walkx;
|
|
base = spu->stride * (unsigned int) unscaled_y_bottom;
|
|
for (walkx = left_right_column; walkx < (unsigned int) unscaled_x_right; ++walkx) {
|
|
tmp = /* 1.0 * */ bottom * canon_alpha(spu->aimage[base + walkx]);
|
|
alpha += tmp;
|
|
color += tmp * spu->image[base + walkx];
|
|
}
|
|
}
|
|
/* 9: bottom right part */
|
|
if (right > 0.0 && bottom > 0.0) {
|
|
base = spu->stride * (unsigned int) unscaled_y_bottom + (unsigned int) unscaled_x_right;
|
|
tmp = right * bottom * canon_alpha(spu->aimage[base]);
|
|
alpha += tmp;
|
|
color += tmp * spu->image[base];
|
|
}
|
|
/* Finally mix these transparency and brightness information suitably */
|
|
base = spu->scaled_stride * y + x;
|
|
spu->scaled_image[base] = alpha > 0 ? color / alpha : 0;
|
|
spu->scaled_aimage[base] = alpha * scalex * scaley / 0x10000;
|
|
if (spu->scaled_aimage[base]) {
|
|
spu->scaled_aimage[base] = 256 - spu->scaled_aimage[base];
|
|
if (spu->scaled_aimage[base] + spu->scaled_image[base] > 255)
|
|
spu->scaled_image[base] = 256 - spu->scaled_aimage[base];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
nothing_to_do:
|
|
/* Kludge: draw_alpha needs width multiple of 8. */
|
|
if (spu->scaled_width < spu->scaled_stride)
|
|
for (y = 0; y < spu->scaled_height; ++y) {
|
|
memset(spu->scaled_aimage + y * spu->scaled_stride + spu->scaled_width, 0,
|
|
spu->scaled_stride - spu->scaled_width);
|
|
}
|
|
spu->scaled_frame_width = dxs;
|
|
spu->scaled_frame_height = dys;
|
|
}
|
|
}
|
|
if (spu->scaled_image){
|
|
switch (spu_alignment) {
|
|
case 0:
|
|
spu->scaled_start_row = dys*sub_pos/100;
|
|
if (spu->scaled_start_row + spu->scaled_height > dys)
|
|
spu->scaled_start_row = dys - spu->scaled_height;
|
|
break;
|
|
case 1:
|
|
spu->scaled_start_row = dys*sub_pos/100 - spu->scaled_height/2;
|
|
if (sub_pos >= 50 && spu->scaled_start_row + spu->scaled_height > dys)
|
|
spu->scaled_start_row = dys - spu->scaled_height;
|
|
break;
|
|
case 2:
|
|
spu->scaled_start_row = dys*sub_pos/100 - spu->scaled_height;
|
|
break;
|
|
}
|
|
draw_alpha(ctx, spu->scaled_start_col, spu->scaled_start_row, spu->scaled_width, spu->scaled_height,
|
|
spu->scaled_image, spu->scaled_aimage, spu->scaled_stride);
|
|
spu->spu_changed = 0;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2,"SPU not displayed: start_pts=%d end_pts=%d now_pts=%d\n",
|
|
spu->start_pts, spu->end_pts, spu->now_pts);
|
|
}
|
|
}
|
|
|
|
void spudec_update_palette(void * this, unsigned int *palette)
|
|
{
|
|
spudec_handle_t *spu = this;
|
|
if (spu && palette) {
|
|
memcpy(spu->global_palette, palette, sizeof(spu->global_palette));
|
|
if(spu->hw_spu)
|
|
vo_control(spu->hw_spu, VOCTRL_SET_SPU_PALETTE, spu->global_palette);
|
|
}
|
|
}
|
|
|
|
void spudec_set_font_factor(void * this, double factor)
|
|
{
|
|
spudec_handle_t *spu = this;
|
|
spu->font_start_level = (int)(0xF0-(0xE0*factor));
|
|
}
|
|
|
|
static void spudec_parse_extradata(spudec_handle_t *this,
|
|
uint8_t *extradata, int extradata_len)
|
|
{
|
|
uint8_t *buffer, *ptr;
|
|
unsigned int *pal = this->global_palette, *cuspal = this->cuspal;
|
|
unsigned int tridx;
|
|
int i;
|
|
|
|
if (extradata_len == 16*4) {
|
|
for (i=0; i<16; i++)
|
|
pal[i] = AV_RB32(extradata + i*4);
|
|
this->auto_palette = 0;
|
|
return;
|
|
}
|
|
|
|
if (!(ptr = buffer = malloc(extradata_len+1)))
|
|
return;
|
|
memcpy(buffer, extradata, extradata_len);
|
|
buffer[extradata_len] = 0;
|
|
|
|
do {
|
|
if (*ptr == '#')
|
|
continue;
|
|
if (!strncmp(ptr, "size: ", 6))
|
|
sscanf(ptr + 6, "%dx%d", &this->orig_frame_width, &this->orig_frame_height);
|
|
if (!strncmp(ptr, "palette: ", 9) &&
|
|
sscanf(ptr + 9, "%x, %x, %x, %x, %x, %x, %x, %x, "
|
|
"%x, %x, %x, %x, %x, %x, %x, %x",
|
|
&pal[ 0], &pal[ 1], &pal[ 2], &pal[ 3],
|
|
&pal[ 4], &pal[ 5], &pal[ 6], &pal[ 7],
|
|
&pal[ 8], &pal[ 9], &pal[10], &pal[11],
|
|
&pal[12], &pal[13], &pal[14], &pal[15]) == 16) {
|
|
for (i=0; i<16; i++)
|
|
pal[i] = vobsub_palette_to_yuv(pal[i]);
|
|
this->auto_palette = 0;
|
|
}
|
|
if (!strncasecmp(ptr, "forced subs: on", 15))
|
|
this->forced_subs_only = 1;
|
|
if (!strncmp(ptr, "custom colors: ON, tridx: ", 26) &&
|
|
sscanf(ptr + 26, "%x, colors: %x, %x, %x, %x",
|
|
&tridx, cuspal+0, cuspal+1, cuspal+2, cuspal+3) == 5) {
|
|
for (i=0; i<4; i++) {
|
|
cuspal[i] = vobsub_rgb_to_yuv(cuspal[i]);
|
|
if (tridx & (1 << (12-4*i)))
|
|
cuspal[i] |= 1 << 31;
|
|
}
|
|
this->custom = 1;
|
|
}
|
|
} while ((ptr=strchr(ptr,'\n')) && *++ptr);
|
|
|
|
free(buffer);
|
|
}
|
|
|
|
void *spudec_new_scaled(unsigned int *palette, unsigned int frame_width, unsigned int frame_height, uint8_t *extradata, int extradata_len)
|
|
{
|
|
spudec_handle_t *this = calloc(1, sizeof(spudec_handle_t));
|
|
if (this){
|
|
this->orig_frame_height = frame_height;
|
|
this->orig_frame_width = frame_width;
|
|
// set up palette:
|
|
if (palette)
|
|
memcpy(this->global_palette, palette, sizeof(this->global_palette));
|
|
else
|
|
this->auto_palette = 1;
|
|
if (extradata)
|
|
spudec_parse_extradata(this, extradata, extradata_len);
|
|
/* XXX Although the video frame is some size, the SPU frame is
|
|
always maximum size i.e. 720 wide and 576 or 480 high */
|
|
// For HD files in MKV the VobSub resolution can be higher though,
|
|
// see largeres_vobsub.mkv
|
|
if (this->orig_frame_width <= 720 && this->orig_frame_height <= 576) {
|
|
this->orig_frame_width = 720;
|
|
if (this->orig_frame_height == 480 || this->orig_frame_height == 240)
|
|
this->orig_frame_height = 480;
|
|
else
|
|
this->orig_frame_height = 576;
|
|
}
|
|
}
|
|
else
|
|
mp_msg(MSGT_SPUDEC,MSGL_FATAL, "FATAL: spudec_init: calloc");
|
|
return this;
|
|
}
|
|
|
|
void *spudec_new(unsigned int *palette)
|
|
{
|
|
return spudec_new_scaled(palette, 0, 0, NULL, 0);
|
|
}
|
|
|
|
void spudec_free(void *this)
|
|
{
|
|
spudec_handle_t *spu = this;
|
|
if (spu) {
|
|
while (spu->queue_head)
|
|
spudec_free_packet(spudec_dequeue_packet(spu));
|
|
free(spu->packet);
|
|
spu->packet = NULL;
|
|
free(spu->scaled_image);
|
|
spu->scaled_image = NULL;
|
|
free(spu->image);
|
|
spu->image = NULL;
|
|
spu->aimage = NULL;
|
|
free(spu->pal_image);
|
|
spu->pal_image = NULL;
|
|
spu->image_size = 0;
|
|
spu->pal_width = spu->pal_height = 0;
|
|
free(spu);
|
|
}
|
|
}
|
|
|
|
void spudec_set_hw_spu(void *this, struct vo *hw_spu)
|
|
{
|
|
spudec_handle_t *spu = this;
|
|
if (!spu)
|
|
return;
|
|
spu->hw_spu = hw_spu;
|
|
vo_control(hw_spu, VOCTRL_SET_SPU_PALETTE, spu->global_palette);
|
|
}
|
|
|
|
#define MP_NOPTS_VALUE (-1LL<<63) //both int64_t and double should be able to represent this exactly
|
|
|
|
/**
|
|
* palette must contain at least 256 32-bit entries, otherwise crashes
|
|
* are possible
|
|
*/
|
|
void spudec_set_paletted(void *this, const uint8_t *pal_img, int pal_stride,
|
|
const void *palette,
|
|
int x, int y, int w, int h,
|
|
double pts, double endpts)
|
|
{
|
|
int i;
|
|
uint16_t g8a8_pal[256];
|
|
packet_t *packet;
|
|
const uint32_t *pal = palette;
|
|
spudec_handle_t *spu = this;
|
|
uint8_t *img;
|
|
uint8_t *aimg;
|
|
int stride = (w + 7) & ~7;
|
|
if ((unsigned)w >= 0x8000 || (unsigned)h > 0x4000)
|
|
return;
|
|
packet = calloc(1, sizeof(packet_t));
|
|
packet->is_decoded = 1;
|
|
packet->width = w;
|
|
packet->height = h;
|
|
packet->stride = stride;
|
|
packet->start_col = x;
|
|
packet->start_row = y;
|
|
packet->data_len = 2 * stride * h;
|
|
if (packet->data_len) { // size 0 is a special "clear" packet
|
|
packet->packet = malloc(packet->data_len);
|
|
img = packet->packet;
|
|
aimg = packet->packet + stride * h;
|
|
for (i = 0; i < 256; i++) {
|
|
uint32_t pixel = pal[i];
|
|
int alpha = pixel >> 24;
|
|
int gray = (((pixel & 0x000000ff) >> 0) +
|
|
((pixel & 0x0000ff00) >> 7) +
|
|
((pixel & 0x00ff0000) >> 16)) >> 2;
|
|
gray = FFMIN(gray, alpha);
|
|
g8a8_pal[i] = (-alpha << 8) | gray;
|
|
}
|
|
pal2gray_alpha(g8a8_pal, pal_img, pal_stride,
|
|
img, aimg, stride, w, h);
|
|
}
|
|
packet->start_pts = 0;
|
|
packet->end_pts = 0x7fffffff;
|
|
if (pts != MP_NOPTS_VALUE)
|
|
packet->start_pts = pts * 90000;
|
|
if (endpts != MP_NOPTS_VALUE)
|
|
packet->end_pts = endpts * 90000;
|
|
spudec_queue_packet(spu, packet);
|
|
}
|