mirror of
https://github.com/mpv-player/mpv
synced 2024-10-30 04:46:41 +01:00
3b285a0e3b
- runtime selectable positioning, like with text subs - runtime selectable scaling/antialiasing algorithm - gaussian blur scaler (finally dvd/vobsub doesn't look like shit!) git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9078 b3059339-0415-0410-9bf9-f77b7e298cf2
1132 lines
38 KiB
C
1132 lines
38 KiB
C
/* SPUdec.c
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Skeleton of function spudec_process_controll() is from xine sources.
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Further works:
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LGB,... (yeah, try to improve it and insert your name here! ;-)
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Kim Minh Kaplan
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implement fragments reassembly, RLE decoding.
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read brightness from the IFO.
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For information on SPU format see <URL:http://sam.zoy.org/doc/dvd/subtitles/>
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and <URL:http://members.aol.com/mpucoder/DVD/spu.html>
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*/
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#include "config.h"
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#include "mp_msg.h"
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#include <errno.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <math.h>
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#include "libvo/video_out.h"
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#include "spudec.h"
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#include "postproc/swscale.h"
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#define MIN(a, b) ((a)<(b)?(a):(b))
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/* Valid values for spu_aamode:
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0: none (fastest, most ugly)
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1: approximate
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2: full (slowest)
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3: bilinear (similiar to vobsub, fast and not too bad)
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4: uses swscaler gaussian (this is the only one that looks good)
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*/
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int spu_aamode = 3;
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int spu_alignment = -1;
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float spu_gaussvar = 1.0;
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extern int sub_pos;
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typedef struct packet_t packet_t;
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struct packet_t {
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unsigned char *data;
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unsigned int process_pts; /* When to process the packet */
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size_t reserve; /* size of the memory pointed to by packet */
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unsigned int offset; /* end of the currently assembled fragment */
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unsigned int size; /* size of the packet once all fragments are assembled */
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unsigned int fragment_pts; /* PTS of the last fragment for this packet */
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unsigned int control_start; /* index of start of control data */
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packet_t *next;
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};
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typedef struct {
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packet_t *packets; /* Linked list of packets sorted by process_pts */
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packet_t *last_packet; /* Last packet in linked list */
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unsigned int global_palette[16];
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unsigned int orig_frame_width, orig_frame_height;
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unsigned int palette[4];
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unsigned int alpha[4];
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unsigned int cuspal[4];
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unsigned int custom;
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unsigned int now_pts;
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unsigned int start_pts, end_pts;
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unsigned int start_col, end_col;
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unsigned int start_row, end_row;
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unsigned int width, height, stride;
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unsigned int current_nibble[2]; /* next data nibble (4 bits) to be
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processed (for RLE decoding) for
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even and odd lines */
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int deinterlace_oddness; /* 0 or 1, index into current_nibble */
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size_t image_size; /* Size of the image buffer */
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unsigned char *image; /* Grayscale value */
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unsigned char *aimage; /* Alpha value */
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unsigned int scaled_frame_width, scaled_frame_height;
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unsigned int scaled_start_col, scaled_start_row;
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unsigned int scaled_width, scaled_height, scaled_stride;
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size_t scaled_image_size;
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unsigned char *scaled_image;
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unsigned char *scaled_aimage;
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int auto_palette; /* 1 if we lack a palette and must use an heuristic. */
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int font_start_level; /* Darkest value used for the computed font */
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vo_functions_t *hw_spu;
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int spu_changed;
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} spudec_handle_t;
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/* Add packet to end of list */
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static void spudec_append_packet (spudec_handle_t *this, packet_t *packet)
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{
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packet->next = NULL;
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if (this->last_packet == NULL)
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this->packets = packet;
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else
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this->last_packet->next = packet;
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this->last_packet = packet;
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}
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/* Add a new packet to end of the list */
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static void spudec_append_new_packet (spudec_handle_t *this)
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{
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packet_t *new_packet = calloc (1, sizeof (packet_t));
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/* Do not process packet yet, so set process time way into the future */
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new_packet->process_pts = -1L;
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spudec_append_packet (this, new_packet);
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}
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/* Remove top-most packet and free the memory it used */
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static void spudec_pop_packet (spudec_handle_t *this)
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{
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packet_t *temp;
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if (this->packets != NULL)
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{
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temp = this->packets;
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this->packets = temp->next;
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if (temp->data != NULL)
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free (temp->data);
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free (temp);
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/* Null last packet pointer if there are no packets in the queue */
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if (this->packets == NULL)
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this->last_packet = NULL;
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}
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}
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static inline unsigned int get_be16(const unsigned char *p)
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{
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return (p[0] << 8) + p[1];
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}
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static inline unsigned int get_be24(const unsigned char *p)
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{
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return (get_be16(p) << 8) + p[2];
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}
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static void next_line(spudec_handle_t *this)
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{
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if (this->current_nibble[this->deinterlace_oddness] % 2)
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this->current_nibble[this->deinterlace_oddness]++;
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this->deinterlace_oddness = (this->deinterlace_oddness + 1) % 2;
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}
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static inline unsigned char get_nibble(spudec_handle_t *this, packet_t *packet)
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{
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unsigned char nib;
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unsigned int *nibblep = this->current_nibble + this->deinterlace_oddness;
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if (*nibblep / 2 >= packet->control_start) {
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mp_msg(MSGT_SPUDEC,MSGL_WARN, "SPUdec: ERROR: get_nibble past end of packet\n");
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return 0;
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}
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nib = packet->data[*nibblep / 2];
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if (*nibblep % 2)
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nib &= 0xf;
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else
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nib >>= 4;
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++*nibblep;
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return nib;
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}
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static inline int mkalpha(int i)
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{
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/* In mplayer's alpha planes, 0 is transparent, then 1 is nearly
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opaque upto 255 which is transparent */
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switch (i) {
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case 0xf:
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return 1;
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case 0:
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return 0;
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default:
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return (0xf - i) << 4;
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}
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}
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/* Cut the sub to visible part */
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static inline void spudec_cut_image(spudec_handle_t *this)
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{
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unsigned int fy, ly;
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unsigned int first_y, last_y;
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unsigned char *image;
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unsigned char *aimage;
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if (this->stride == 0 || this->height == 0) {
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return;
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}
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for (fy = 0; fy < this->image_size && !this->aimage[fy]; fy++);
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for (ly = this->stride * this->height-1; ly && !this->aimage[ly]; ly--);
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first_y = fy / this->stride;
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last_y = ly / this->stride;
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//printf("first_y: %d, last_y: %d\n", first_y, last_y);
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this->start_row += first_y;
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// Some subtitles trigger this condition
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if (last_y + 1 > first_y ) {
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this->height = last_y - first_y +1;
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} else {
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this->height = 0;
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}
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//printf("new h %d new start %d (sz %d st %d)---\n\n", this->height, this->start_row, this->image_size, this->stride);
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image = malloc(2 * this->stride * this->height);
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if(image){
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this->image_size = this->stride * this->height;
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aimage = image + this->image_size;
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memcpy(image, this->image + this->stride * first_y, this->image_size);
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memcpy(aimage, this->aimage + this->stride * first_y, this->image_size);
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free(this->image);
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this->image = image;
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this->aimage = aimage;
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} else {
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mp_msg(MSGT_SPUDEC, MSGL_FATAL, "Fatal: update_spu: malloc requested %d bytes\n", 2 * this->stride * this->height);
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}
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}
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static void spudec_process_data(spudec_handle_t *this, packet_t *packet)
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{
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unsigned int cmap[4], alpha[4];
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unsigned int i, x, y;
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this->deinterlace_oddness = 0;
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this->scaled_frame_width = 0;
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this->scaled_frame_height = 0;
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for (i = 0; i < 4; ++i) {
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alpha[i] = mkalpha(this->alpha[i]);
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if (alpha[i] == 0)
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cmap[i] = 0;
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else if (this->custom){
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cmap[i] = ((this->cuspal[i] >> 16) & 0xff);
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if (cmap[i] + alpha[i] > 255)
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cmap[i] = 256 - alpha[i];
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}
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else {
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cmap[i] = ((this->global_palette[this->palette[i]] >> 16) & 0xff);
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if (cmap[i] + alpha[i] > 255)
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cmap[i] = 256 - alpha[i];
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}
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}
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if (this->image_size < this->stride * this->height) {
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if (this->image != NULL) {
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free(this->image);
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this->image_size = 0;
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}
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this->image = malloc(2 * this->stride * this->height);
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if (this->image) {
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this->image_size = this->stride * this->height;
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this->aimage = this->image + this->image_size;
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}
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}
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if (this->image == NULL)
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return;
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/* Kludge: draw_alpha needs width multiple of 8. */
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if (this->width < this->stride)
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for (y = 0; y < this->height; ++y) {
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memset(this->aimage + y * this->stride + this->width, 0, this->stride - this->width);
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/* FIXME: Why is this one needed? */
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memset(this->image + y * this->stride + this->width, 0, this->stride - this->width);
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}
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i = this->current_nibble[1];
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x = 0;
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y = 0;
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while (this->current_nibble[0] < i
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&& this->current_nibble[1] / 2 < packet->control_start
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&& y < this->height) {
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unsigned int len, color;
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unsigned int rle = 0;
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rle = get_nibble(this, packet);
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if (rle < 0x04) {
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rle = (rle << 4) | get_nibble(this, packet);
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if (rle < 0x10) {
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rle = (rle << 4) | get_nibble(this, packet);
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if (rle < 0x040) {
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rle = (rle << 4) | get_nibble(this, packet);
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if (rle < 0x0004)
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rle |= ((this->width - x) << 2);
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}
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}
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}
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color = 3 - (rle & 0x3);
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len = rle >> 2;
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if (len > this->width - x || len == 0)
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len = this->width - x;
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/* FIXME have to use palette and alpha map*/
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memset(this->image + y * this->stride + x, cmap[color], len);
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memset(this->aimage + y * this->stride + x, alpha[color], len);
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x += len;
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if (x >= this->width) {
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next_line(this);
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x = 0;
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++y;
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}
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}
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spudec_cut_image(this);
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}
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/*
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This function tries to create a usable palette.
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Is searchs how many non-transparent colors are used and assigns different
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gray scale values to each color.
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I tested it with four streams and even got something readable. Half of the
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times I got black characters with white around and half the reverse.
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*/
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static void compute_palette(spudec_handle_t *this)
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{
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int used[16],i,cused,start,step,color;
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memset(used, 0, sizeof(used));
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for (i=0; i<4; i++)
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if (this->alpha[i]) /* !Transparent? */
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used[this->palette[i]] = 1;
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for (cused=0, i=0; i<16; i++)
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if (used[i]) cused++;
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if (!cused) return;
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if (cused == 1) {
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start = 0x80;
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step = 0;
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} else {
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start = this->font_start_level;
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step = (0xF0-this->font_start_level)/(cused-1);
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}
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memset(used, 0, sizeof(used));
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for (i=0; i<4; i++) {
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color = this->palette[i];
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if (this->alpha[i] && !used[color]) { /* not assigned? */
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used[color] = 1;
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this->global_palette[color] = start<<16;
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start += step;
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}
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}
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}
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static void spudec_process_control(spudec_handle_t *this, packet_t *packet)
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{
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int a,b; /* Temporary vars */
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unsigned int date, type;
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unsigned int off;
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unsigned int start_off = 0;
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unsigned int next_off;
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unsigned int pts100 = packet->process_pts;
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packet->control_start = get_be16(packet->data + 2);
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next_off = packet->control_start;
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while (start_off != next_off) {
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start_off = next_off;
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date = get_be16(packet->data + start_off) * 1024;
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next_off = get_be16(packet->data + start_off + 2);
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mp_msg(MSGT_SPUDEC,MSGL_DBG2, "date=%d\n", date);
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off = start_off + 4;
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for (type = packet->data[off++]; type != 0xff; type = packet->data[off++]) {
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mp_msg(MSGT_SPUDEC,MSGL_DBG2, "cmd=%d ",type);
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switch(type) {
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case 0x00:
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/* Menu ID, 1 byte */
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mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Menu ID\n");
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/* shouldn't a Menu ID type force display start? */
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//this->start_pts = pts100 + date;
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//this->end_pts = UINT_MAX;
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break;
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case 0x01:
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/* Start display */
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mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Start display!\n");
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this->start_pts = pts100 + date;
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this->end_pts = UINT_MAX;
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break;
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case 0x02:
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/* Stop display */
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mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Stop display!\n");
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this->end_pts = pts100 + date;
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break;
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case 0x03:
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/* Palette */
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this->palette[0] = packet->data[off] >> 4;
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this->palette[1] = packet->data[off] & 0xf;
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this->palette[2] = packet->data[off + 1] >> 4;
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this->palette[3] = packet->data[off + 1] & 0xf;
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mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Palette %d, %d, %d, %d\n",
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this->palette[0], this->palette[1], this->palette[2], this->palette[3]);
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off+=2;
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break;
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case 0x04:
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/* Alpha */
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this->alpha[0] = packet->data[off] >> 4;
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this->alpha[1] = packet->data[off] & 0xf;
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this->alpha[2] = packet->data[off + 1] >> 4;
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this->alpha[3] = packet->data[off + 1] & 0xf;
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if (this->auto_palette) {
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compute_palette(this);
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this->auto_palette = 0;
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}
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mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Alpha %d, %d, %d, %d\n",
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this->alpha[0], this->alpha[1], this->alpha[2], this->alpha[3]);
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off+=2;
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break;
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case 0x05:
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/* Co-ords */
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a = get_be24(packet->data + off);
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b = get_be24(packet->data + off + 3);
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this->start_col = a >> 12;
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this->end_col = a & 0xfff;
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this->width = (this->end_col < this->start_col) ? 0 : this->end_col - this->start_col + 1;
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this->stride = (this->width + 7) & ~7; /* Kludge: draw_alpha needs width multiple of 8 */
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this->start_row = b >> 12;
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this->end_row = b & 0xfff;
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this->height = (this->end_row < this->start_row) ? 0 : this->end_row - this->start_row /* + 1 */;
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mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Coords col: %d - %d row: %d - %d (%dx%d)\n",
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this->start_col, this->end_col, this->start_row, this->end_row,
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this->width, this->height);
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off+=6;
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break;
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case 0x06:
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/* Graphic lines */
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this->current_nibble[0] = 2 * get_be16(packet->data + off);
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this->current_nibble[1] = 2 * get_be16(packet->data + off + 2);
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mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Graphic offset 1: %d offset 2: %d\n",
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this->current_nibble[0] / 2, this->current_nibble[1] / 2);
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off+=4;
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break;
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case 0xff:
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/* All done, bye-bye */
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mp_msg(MSGT_SPUDEC,MSGL_DBG2,"Done!\n");
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return;
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// break;
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default:
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mp_msg(MSGT_SPUDEC,MSGL_WARN,"spudec: Error determining control type 0x%02x. Skipping %d bytes.\n",
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type, next_off - off);
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goto next_control;
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}
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}
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next_control:
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;
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}
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}
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static void spudec_decode(spudec_handle_t *this, packet_t *queued_packet)
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{
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if(this->hw_spu) {
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static vo_mpegpes_t packet = { NULL, 0, 0x20, 0 };
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static vo_mpegpes_t *pkg=&packet;
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packet.data = queued_packet->data;
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packet.size = queued_packet->size;
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packet.timestamp = queued_packet->process_pts;
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this->hw_spu->draw_frame((uint8_t**)&pkg);
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} else {
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spudec_process_control(this, queued_packet);
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spudec_process_data(this, queued_packet);
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}
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this->spu_changed = 1;
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}
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int spudec_changed(void * this)
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{
|
|
spudec_handle_t * spu = (spudec_handle_t*)this;
|
|
return (spu->spu_changed || spu->now_pts > spu->end_pts);
|
|
}
|
|
|
|
void spudec_assemble(void *this, unsigned char *packet_bytes, unsigned int len, unsigned int pts100)
|
|
{
|
|
spudec_handle_t *spu = (spudec_handle_t*)this;
|
|
packet_t *last_packet;
|
|
|
|
/* Create a new packet if one doesn't exist in the queue */
|
|
if (spu->last_packet == NULL)
|
|
spudec_append_new_packet (spu);
|
|
|
|
last_packet = spu->last_packet;
|
|
|
|
// spudec_heartbeat(this, pts100);
|
|
if (len < 2) {
|
|
mp_msg(MSGT_SPUDEC,MSGL_WARN,"SPUasm: packet too short\n");
|
|
return;
|
|
}
|
|
if ((last_packet->fragment_pts + 10000) < pts100) {
|
|
// [cb] too long since last fragment: force new packet
|
|
last_packet->offset = 0;
|
|
}
|
|
last_packet->fragment_pts = pts100;
|
|
if (last_packet->offset == 0) {
|
|
unsigned int len2 = get_be16(packet_bytes);
|
|
// Start new fragment
|
|
if (last_packet->reserve < len2) {
|
|
if (last_packet->data != NULL)
|
|
free(last_packet->data);
|
|
last_packet->data = malloc(len2);
|
|
last_packet->reserve = last_packet->data != NULL ? len2 : 0;
|
|
}
|
|
if (last_packet->data != NULL) {
|
|
last_packet->size = len2;
|
|
if (len > len2) {
|
|
mp_msg(MSGT_SPUDEC,MSGL_WARN,"SPUasm: invalid frag len / len2: %d / %d \n", len, len2);
|
|
return;
|
|
}
|
|
memcpy(last_packet->data, packet_bytes, len);
|
|
last_packet->offset = len;
|
|
}
|
|
} else {
|
|
// Continue current fragment
|
|
if (last_packet->size < last_packet->offset + len){
|
|
mp_msg(MSGT_SPUDEC,MSGL_WARN,"SPUasm: invalid fragment\n");
|
|
last_packet->size = last_packet->offset = 0;
|
|
} else {
|
|
memcpy(last_packet->data + last_packet->offset, packet_bytes, len);
|
|
last_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 ((last_packet->offset == last_packet->size) ||
|
|
((last_packet->offset + 1) == last_packet->size)){
|
|
unsigned int x=0,y;
|
|
while(x+4<=last_packet->offset) {
|
|
y=get_be16(last_packet->data+x+2); // next control pointer
|
|
mp_msg(MSGT_SPUDEC,MSGL_DBG2,"SPUtest: x=%d y=%d off=%d size=%d\n",x,y,last_packet->offset,last_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",last_packet->offset,last_packet->size);
|
|
break;
|
|
}
|
|
if(y<=x || y>=last_packet->size){ // invalid?
|
|
mp_msg(MSGT_SPUDEC,MSGL_WARN,"SPUtest: broken packet!!!!! y=%d < x=%d\n",y,x);
|
|
last_packet->size = last_packet->offset = 0;
|
|
return;
|
|
}
|
|
x=y;
|
|
}
|
|
|
|
/* Packet is done. Schedule time to process it and start a new one. */
|
|
last_packet->process_pts = last_packet->fragment_pts;
|
|
spudec_append_new_packet (spu);
|
|
}
|
|
#else
|
|
if (spu->packet_offset == spu->packet_size) {
|
|
/* Packet is done. Schedule time to process it and start a new one. */
|
|
last_packet->process_pts = last_packet->fragment_pts;
|
|
spudec_append_new_packet (spu);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void spudec_reset(void *this) // called after seek
|
|
{
|
|
spudec_handle_t *spu = (spudec_handle_t*)this;
|
|
spu->now_pts = 0;
|
|
while (spu->packets != NULL)
|
|
spudec_pop_packet (spu);
|
|
}
|
|
|
|
void spudec_heartbeat(void *this, unsigned int pts100)
|
|
{
|
|
spudec_handle_t *spu = (spudec_handle_t*) this;
|
|
spu->now_pts = pts100;
|
|
|
|
/* Process queued instructions for the current beat */
|
|
while (spu->packets != NULL && pts100 >= spu->packets->process_pts)
|
|
{
|
|
spudec_decode (spu, spu->packets);
|
|
spudec_pop_packet (spu);
|
|
}
|
|
}
|
|
|
|
int spudec_visible(void *this){
|
|
spudec_handle_t *spu = (spudec_handle_t *)this;
|
|
int ret=(spu->start_pts <= spu->now_pts && spu->now_pts < spu->end_pts);
|
|
// printf("spu visible: %d \n",ret);
|
|
return ret;
|
|
}
|
|
|
|
void spudec_draw(void *this, void (*draw_alpha)(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride))
|
|
{
|
|
spudec_handle_t *spu = (spudec_handle_t *)this;
|
|
if (spu->start_pts <= spu->now_pts && spu->now_pts < spu->end_pts && spu->image)
|
|
{
|
|
draw_alpha(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;
|
|
spu = (spudec_handle_t *)me;
|
|
if (spu->orig_frame_width == 0 || spu->orig_frame_height == 0
|
|
|| (spu->orig_frame_width == dxs && spu->orig_frame_height == dys)) {
|
|
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 if (spu->scaled_frame_width != dxs || spu->scaled_frame_height != dys) {
|
|
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;
|
|
if (bbox[2] < 0) bbox[2] = 0;
|
|
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;
|
|
if (bbox[2] < 0) bbox[2] = 0;
|
|
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 alpha ? 256 - alpha : 0;
|
|
}
|
|
|
|
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= MIN(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];
|
|
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]){
|
|
spu->scaled_aimage[scaled] = 256 - spu->scaled_aimage[scaled];
|
|
if(spu->scaled_aimage[scaled] + spu->scaled_image[scaled] > 255)
|
|
spu->scaled_image[scaled] = 256 - spu->scaled_aimage[scaled];
|
|
}
|
|
}
|
|
|
|
void sws_spu_image(unsigned char *d1, unsigned char *d2, int dw, int dh, int ds,
|
|
unsigned char *s1, unsigned char *s2, int sw, int sh, int ss)
|
|
{
|
|
SwsContext *ctx;
|
|
static SwsFilter filter;
|
|
static int firsttime = 1;
|
|
static float oldvar;
|
|
int i;
|
|
|
|
if (!firsttime && oldvar != spu_gaussvar) freeVec(filter.lumH);
|
|
if (firsttime) {
|
|
filter.lumH = filter.lumV =
|
|
filter.chrH = filter.chrV = getGaussianVec(spu_gaussvar, 3.0);
|
|
normalizeVec(filter.lumH, 1.0);
|
|
firsttime = 0;
|
|
oldvar = spu_gaussvar;
|
|
}
|
|
|
|
ctx=getSwsContext(sw, sh, IMGFMT_Y800, dw, dh, IMGFMT_Y800, SWS_GAUSS, &filter, NULL);
|
|
ctx->swScale(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;
|
|
ctx->swScale(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;
|
|
freeSwsContext(ctx);
|
|
}
|
|
|
|
void spudec_draw_scaled(void *me, unsigned int dxs, unsigned int dys, void (*draw_alpha)(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride))
|
|
{
|
|
spudec_handle_t *spu = (spudec_handle_t *)me;
|
|
scale_pixel *table_x;
|
|
scale_pixel *table_y;
|
|
if (spu->start_pts <= spu->now_pts && spu->now_pts < spu->end_pts) {
|
|
if (!(spu_aamode&16) && (spu->orig_frame_width == 0 || spu->orig_frame_height == 0
|
|
|| (spu->orig_frame_width == dxs && spu->orig_frame_height == dys))) {
|
|
if (spu->image)
|
|
{
|
|
draw_alpha(spu->start_col, spu->start_row, spu->width, spu->height,
|
|
spu->image, spu->aimage, spu->stride);
|
|
spu->spu_changed = 0;
|
|
}
|
|
}
|
|
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;
|
|
/* 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);
|
|
/* FIXME: Why is this one needed? */
|
|
memset(spu->scaled_image + y * spu->scaled_stride + spu->scaled_width, 0,
|
|
spu->scaled_stride - spu->scaled_width);
|
|
}
|
|
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 = MIN(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 = MIN(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:
|
|
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) {
|
|
if (spu->scaled_start_row < 0) spu->scaled_start_row = 0;
|
|
} else {
|
|
if (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;
|
|
if (spu->scaled_start_row < 0) spu->scaled_start_row = 0;
|
|
break;
|
|
}
|
|
draw_alpha(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 = (spudec_handle_t *) this;
|
|
if (spu && palette) {
|
|
memcpy(spu->global_palette, palette, sizeof(spu->global_palette));
|
|
if(spu->hw_spu)
|
|
spu->hw_spu->control(VOCTRL_SET_SPU_PALETTE,spu->global_palette);
|
|
}
|
|
}
|
|
|
|
void spudec_set_font_factor(void * this, double factor)
|
|
{
|
|
spudec_handle_t *spu = (spudec_handle_t *) this;
|
|
spu->font_start_level = (int)(0xF0-(0xE0*factor));
|
|
}
|
|
|
|
void *spudec_new_scaled(unsigned int *palette, unsigned int frame_width, unsigned int frame_height)
|
|
{
|
|
return spudec_new_scaled_vobsub(palette, NULL, 0, frame_width, frame_height);
|
|
}
|
|
|
|
/* get palette custom color, width, height from .idx file */
|
|
void *spudec_new_scaled_vobsub(unsigned int *palette, unsigned int *cuspal, unsigned int custom, unsigned int frame_width, unsigned int frame_height)
|
|
{
|
|
spudec_handle_t *this = calloc(1, sizeof(spudec_handle_t));
|
|
if (this){
|
|
//(fprintf(stderr,"VobSub Custom Palette: %d,%d,%d,%d", this->cuspal[0], this->cuspal[1], this->cuspal[2],this->cuspal[3]);
|
|
this->packets = NULL;
|
|
this->image = NULL;
|
|
this->scaled_image = NULL;
|
|
/* XXX Although the video frame is some size, the SPU frame is
|
|
always maximum size i.e. 720 wide and 576 or 480 high */
|
|
this->orig_frame_width = 720;
|
|
this->orig_frame_height = (frame_height == 480 || frame_height == 240) ? 480 : 576;
|
|
this->custom = custom;
|
|
// set up palette:
|
|
this->auto_palette = 1;
|
|
if (palette){
|
|
memcpy(this->global_palette, palette, sizeof(this->global_palette));
|
|
this->auto_palette = 0;
|
|
}
|
|
this->custom = custom;
|
|
if (custom && cuspal) {
|
|
memcpy(this->cuspal, cuspal, sizeof(this->cuspal));
|
|
this->auto_palette = 0;
|
|
}
|
|
}
|
|
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);
|
|
}
|
|
|
|
void spudec_free(void *this)
|
|
{
|
|
spudec_handle_t *spu = (spudec_handle_t*)this;
|
|
if (spu) {
|
|
while (spu->packets != NULL)
|
|
spudec_pop_packet (this);
|
|
if (spu->scaled_image)
|
|
free(spu->scaled_image);
|
|
if (spu->image)
|
|
free(spu->image);
|
|
free(spu);
|
|
}
|
|
}
|
|
|
|
void spudec_set_hw_spu(void *this, vo_functions_t *hw_spu)
|
|
{
|
|
spudec_handle_t *spu = (spudec_handle_t*)this;
|
|
if (!spu)
|
|
return;
|
|
spu->hw_spu = hw_spu;
|
|
hw_spu->control(VOCTRL_SET_SPU_PALETTE,spu->global_palette);
|
|
}
|