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-rw-r--r--src/libxinevdec/Makefile.am6
-rw-r--r--src/libxinevdec/wc3video.c561
2 files changed, 566 insertions, 1 deletions
diff --git a/src/libxinevdec/Makefile.am b/src/libxinevdec/Makefile.am
index 1f4ab869c..b8cf6bbf8 100644
--- a/src/libxinevdec/Makefile.am
+++ b/src/libxinevdec/Makefile.am
@@ -12,7 +12,8 @@ lib_LTLIBRARIES = xineplug_decode_cinepak.la xineplug_decode_cyuv.la \
xineplug_decode_svq1.la xineplug_decode_fli.la \
xineplug_decode_rgb.la xineplug_decode_yuv.la \
xineplug_decode_msrle.la xineplug_decode_idcinvideo.la \
- xineplug_decode_qtsmc.la xineplug_decode_qtrpza.la
+ xineplug_decode_qtsmc.la xineplug_decode_qtrpza.la \
+ xineplug_decode_wc3video.la
xineplug_decode_cinepak_la_SOURCES = cinepak.c
xineplug_decode_cinepak_la_LDFLAGS = -avoid-version -module
@@ -50,6 +51,9 @@ xineplug_decode_qtsmc_la_LDFLAGS = -avoid-version -module
xineplug_decode_qtrpza_la_SOURCES = qtrpza.c
xineplug_decode_qtrpza_la_LDFLAGS = -avoid-version -module
+xineplug_decode_wc3video_la_SOURCES = wc3video.c
+xineplug_decode_wc3video_la_LDFLAGS = -avoid-version -module
+
noinst_HEADERS = svq1_codebooks.h
debug:
diff --git a/src/libxinevdec/wc3video.c b/src/libxinevdec/wc3video.c
new file mode 100644
index 000000000..0fe835b7e
--- /dev/null
+++ b/src/libxinevdec/wc3video.c
@@ -0,0 +1,561 @@
+/*
+ * Copyright (C) 2000-2002 the xine project
+ *
+ * This file is part of xine, a free video player.
+ *
+ * xine is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * xine is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * Video Decoder for Origin's Wing Commander III MVE Movie Files
+ * by Mario Brito (mbrito@student.dei.uc.pt)
+ * For more information on the WC3 Movie format, visit:
+ * http://www.pcisys.net/~melanson/codecs/
+ *
+ * $Id: wc3video.c,v 1.1 2002/09/04 02:52:16 tmmm Exp $
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "video_out.h"
+#include "buffer.h"
+#include "xine_internal.h"
+#include "xineutils.h"
+#include "bswap.h"
+
+#define VIDEOBUFSIZE 128*1024
+
+#define WC3_WIDTH 320
+#define WC3_HEIGHT 165
+
+#define LE_16(x) (le2me_16(*(uint16_t *)(x)))
+#define LE_32(x) (le2me_32(*(uint32_t *)(x)))
+#define BE_16(x) (be2me_16(*(unsigned short *)(x)))
+#define BE_32(x) (be2me_32(*(unsigned int *)(x)))
+
+typedef struct wc3video_decoder_s {
+ video_decoder_t video_decoder; /* parent video decoder structure */
+
+ /* these are traditional variables in a video decoder object */
+ vo_instance_t *video_out; /* object that will receive frames */
+ uint64_t video_step; /* frame duration in pts units */
+ int decoder_ok; /* current decoder status */
+ int skipframes;
+
+ unsigned char *buf; /* the accumulated buffer data */
+ int bufsize; /* the maximum size of buf */
+ int size; /* the current size of buf */
+
+ unsigned char yuv_palette[256 * 4];
+
+ yuv_planes_t yuv_planes1;
+ yuv_planes_t yuv_planes2;
+
+ yuv_planes_t *current_frame;
+ yuv_planes_t *last_frame;
+
+ /* this is either 1 or 2 indicating the current_frame points to yuv_planes
+ * structure 1 or 2 */
+ int current_planes;
+
+} wc3video_decoder_t;
+
+/**************************************************************************
+ * WC3 video specific decode functions
+ *************************************************************************/
+
+#define SIZE (WC3_WIDTH * WC3_HEIGHT)
+#define BYTE unsigned char
+
+static BYTE buffer1[SIZE];
+static BYTE buffer2[SIZE];
+
+static BYTE * part1;
+static BYTE * part2;
+static BYTE * part3;
+static BYTE * part4;
+
+static void bytecopy(BYTE * dest, BYTE * src, int count) {
+
+ int i;
+
+ /* Don't use memcpy because the memory locations often overlap and
+ * memcpy doesn't like that; it's not uncommon, for example, for
+ * dest = src+1, to turn byte A into pattern AAAAAAAA.
+ * This was originally repz movsb. */
+ for (i = 0; i < count; i ++)
+ dest[i] = src[i];
+}
+
+static void wc3_build_frame (wc3video_decoder_t *this) {
+
+ int frame_size = WC3_WIDTH * WC3_HEIGHT;
+ int index = 0;
+ BYTE pixel;
+ BYTE y, u, v;
+ int size = 0;
+ BYTE flag = 0;
+ int func;
+
+ while (index < frame_size) {
+ func = *part1++;
+ size = 0;
+
+ switch (func) {
+ case 0:
+ flag ^= 1;
+ continue;
+
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ case 5:
+ case 6:
+ case 7:
+ case 8:
+ size = func;
+ break;
+
+ case 12:
+ case 13:
+ case 14:
+ case 15:
+ case 16:
+ case 17:
+ case 18:
+ size += (func - 10);
+ break;
+
+ case 9:
+ case 19:
+ size = (*part2++);
+ break;
+
+ case 10:
+ case 20:
+ size = BE_16(&part2[0]);
+ part2 += 2;
+ break;
+
+ case 11:
+ case 21:
+ size = (part2[0] << 16) | (part2[1] << 8) | part2[2];
+ part2 += 3;
+ break;
+ }
+
+ if (func < 12) {
+ flag = flag ^ 1;
+ if ( flag ) {
+ bytecopy(
+ &this->current_frame->y[index],
+ &this->last_frame->y[index],
+ size);
+ bytecopy(
+ &this->current_frame->u[index],
+ &this->last_frame->u[index],
+ size);
+ bytecopy(
+ &this->current_frame->v[index],
+ &this->last_frame->v[index],
+ size);
+ index += size;
+ } else {
+ while (size > 0) {
+ pixel = *part4++;
+ y = this->yuv_palette[pixel * 4 + 0];
+ u = this->yuv_palette[pixel * 4 + 1];
+ v = this->yuv_palette[pixel * 4 + 2];
+ this->current_frame->y[index] = y;
+ this->current_frame->u[index] = u;
+ this->current_frame->v[index] = v;
+ index++;
+ size --;
+ }
+ }
+ } else {
+ int x = (*part3 >> 4) & 0xf;
+ int y = *part3 & 0xf;
+ part3++;
+
+ /* extend sign */
+ if (x & 8) x |= 0xfffffff0;
+ if (y & 8) y |= 0xfffffff0;
+
+ /* copy a run of pixels from the previous frame */
+ bytecopy(
+ &this->current_frame->y[index],
+ &this->last_frame->y[index + x + y * WC3_WIDTH],
+ size);
+ bytecopy(
+ &this->current_frame->u[index],
+ &this->last_frame->u[index + x + y * WC3_WIDTH],
+ size);
+ bytecopy(
+ &this->current_frame->v[index],
+ &this->last_frame->v[index + x + y * WC3_WIDTH],
+ size);
+ index += size;
+
+ flag = 0;
+ }
+ }
+}
+
+static void wc3_do_part4 (BYTE * dest, BYTE * src) {
+
+ int func;
+ int size;
+ int offset;
+ int byte1, byte2, byte3;
+
+ for (;;) {
+ func = *src++;
+
+ if ( (func & 0x80) == 0 ) {
+
+ offset = *src++;
+
+ size = func & 3;
+ bytecopy(dest, src, size); dest += size; src += size;
+
+ size = ((func & 0x1c) >> 2) + 3;
+ bytecopy (dest, dest - ( ((func & 0x60) << 3) + offset + 1 ), size);
+ dest += size;
+
+ } else if ( (func & 0x40) == 0 ) {
+
+ byte1 = *src++;
+ byte2 = *src++;
+
+ size = byte1 >> 6;
+ bytecopy (dest, src, size); dest += size; src += size;
+
+ size = (func & 0x3f) + 4;
+ bytecopy (dest, dest - (((byte1 & 0x3f) << 8) + byte2 + 1), size);
+ dest += size;
+
+ } else if ( (func & 0x20) == 0 ) {
+
+ byte1 = *src++;
+ byte2 = *src++;
+ byte3 = *src++;
+
+ size = func & 3;
+ bytecopy (dest, src, size); dest += size; src += size;
+
+ size = byte3 + 5 + ((func & 0xc) << 6);
+ bytecopy (dest,
+ dest - ((((func & 0x10) >> 4) << 0x10) + 1 + (byte1 << 8) + byte2),
+ size);
+ dest += size;
+ } else {
+ size = ((func & 0x1f) << 2) + 4;
+
+ if (size > 0x70)
+ break;
+
+ bytecopy (dest, src, size); dest += size; src += size;
+ }
+ }
+
+ size = func & 3;
+ bytecopy(dest, src, size); dest += size; src += size;
+}
+
+static void wc3_do_part1 (BYTE * dest, BYTE * src) {
+
+ BYTE byte = *src++;
+ BYTE ival = byte + 0x16;
+ BYTE * ptr = src + byte*2;
+ BYTE val = ival;
+ int counter = 0;
+
+ BYTE bits = *ptr++;
+
+ while ( val != 0x16 ) {
+ if ( (1 << counter) & bits )
+ val = src[byte + val - 0x17];
+ else
+ val = src[val - 0x17];
+
+ if ( val < 0x16 ) {
+ *dest++ = val;
+ val = ival;
+ }
+
+ if (counter++ == 7) {
+ counter = 0;
+ bits = *ptr++;
+ }
+ }
+}
+
+static void wc3_decode_frame (wc3video_decoder_t *this) {
+
+ BYTE * ptr;
+
+ part1 = buffer1;
+ part4 = buffer2;
+
+ wc3_do_part1(part1, this->buf + LE_16(&this->buf[0]));
+ part2 = this->buf + LE_16(&this->buf[2]);
+ part3 = this->buf + LE_16(&this->buf[4]);
+
+ ptr = this->buf + LE_16(&this->buf[6]);
+ if (*ptr++ == 2)
+ wc3_do_part4(part4, ptr);
+ else
+ part4 = ptr;
+
+ wc3_build_frame(this);
+}
+
+/**************************************************************************
+ * xine video plugin functions
+ *************************************************************************/
+
+/*
+ * This function is called by xine to determine which buffer types this
+ * decoder knows how to handle.
+ * Parameters:
+ * this_gen: A video decoder object
+ * buf_type: The number of the buffer type that xine is querying for;
+ * these buffer constants are defined in src/xine-engine/buffer.h.
+ * Return:
+ * 1 if the decoder is capable of handling buf_type
+ * 0 if the decoder is not capable of handling buf_type
+ */
+static int wc3video_can_handle (video_decoder_t *this_gen, int buf_type) {
+
+ return (buf_type == BUF_VIDEO_WC3);
+}
+
+/*
+ * This function is called to initialize the video decoder for use.
+ * Initialization usually involves setting up the fields in your
+ * private video decoder object.
+ */
+static void wc3video_init (video_decoder_t *this_gen,
+ vo_instance_t *video_out) {
+ wc3video_decoder_t *this = (wc3video_decoder_t *) this_gen;
+
+ /* set our own video_out object to the one that xine gives us */
+ this->video_out = video_out;
+
+ /* indicate that the decoder is not quite ready yet */
+ this->decoder_ok = 0;
+}
+
+/*
+ * This function receives a buffer of data from the demuxer layer and
+ * figures out how to handle it based on its header flags.
+ */
+static void wc3video_decode_data (video_decoder_t *this_gen,
+ buf_element_t *buf) {
+
+ wc3video_decoder_t *this = (wc3video_decoder_t *) this_gen;
+ palette_entry_t *palette;
+ int i;
+
+ vo_frame_t *img; /* video out frame */
+
+ /* a video decoder does not care about this flag (?) */
+ if (buf->decoder_flags & BUF_FLAG_PREVIEW)
+ return;
+
+ /* convert the RGB palette to a YUV palette */
+ if ((buf->decoder_flags & BUF_FLAG_SPECIAL) &&
+ (buf->decoder_info[1] == BUF_SPECIAL_PALETTE)) {
+ palette = (palette_entry_t *)buf->decoder_info[3];
+ for (i = 0; i < buf->decoder_info[2]; i++) {
+ this->yuv_palette[i * 4 + 0] =
+ COMPUTE_Y(palette[i].r, palette[i].g, palette[i].b);
+ this->yuv_palette[i * 4 + 1] =
+ COMPUTE_U(palette[i].r, palette[i].g, palette[i].b);
+ this->yuv_palette[i * 4 + 2] =
+ COMPUTE_V(palette[i].r, palette[i].g, palette[i].b);
+ }
+ }
+
+ if (buf->decoder_flags & BUF_FLAG_HEADER) { /* need to initialize */
+ this->video_out->open (this->video_out);
+
+ if(this->buf)
+ free(this->buf);
+
+ this->video_step = buf->decoder_info[1];
+
+ if (this->buf)
+ free (this->buf);
+ this->bufsize = VIDEOBUFSIZE;
+ this->buf = malloc(this->bufsize);
+ this->size = 0;
+
+ init_yuv_planes(&this->yuv_planes1, WC3_WIDTH, WC3_HEIGHT);
+ init_yuv_planes(&this->yuv_planes2, WC3_WIDTH, WC3_HEIGHT);
+ this->current_planes = 1;
+
+ this->video_out->open (this->video_out);
+ this->decoder_ok = 1;
+
+ return;
+ } else if (this->decoder_ok) {
+
+ if (this->size + buf->size > this->bufsize) {
+ this->bufsize = this->size + 2 * buf->size;
+ this->buf = realloc (this->buf, this->bufsize);
+ }
+
+ xine_fast_memcpy (&this->buf[this->size], buf->content, buf->size);
+
+ this->size += buf->size;
+
+ if (buf->decoder_flags & BUF_FLAG_FRAMERATE)
+ this->video_step = buf->decoder_info[0];
+
+ if (buf->decoder_flags & BUF_FLAG_FRAME_END) {
+
+ img = this->video_out->get_frame (this->video_out,
+ WC3_WIDTH, WC3_HEIGHT,
+ 42, IMGFMT_YUY2, VO_BOTH_FIELDS);
+
+ img->duration = this->video_step;
+ img->pts = buf->pts;
+ img->bad_frame = 0;
+
+ if (this->current_planes == 1) {
+ this->current_planes = 2;
+ this->current_frame = &this->yuv_planes1;
+ this->last_frame = &this->yuv_planes2;
+ } else {
+ this->current_planes = 1;
+ this->current_frame = &this->yuv_planes2;
+ this->last_frame = &this->yuv_planes1;
+ }
+
+ wc3_decode_frame (this);
+ yuv444_to_yuy2(this->current_frame, img->base[0], img->pitches[0]);
+
+ if (img->copy) {
+ int height = img->height;
+ uint8_t *src[3];
+
+ src[0] = img->base[0];
+
+ while ((height -= 16) >= 0) {
+ img->copy(img, src);
+ src[0] += 16 * img->pitches[0];
+ }
+ }
+
+ img->draw(img);
+ img->free(img);
+
+ this->size = 0;
+ }
+ }
+}
+
+/*
+ * This function is called when xine needs to flush the system. Not
+ * sure when or if this is used or even if it needs to do anything.
+ */
+static void wc3video_flush (video_decoder_t *this_gen) {
+}
+
+/*
+ * This function resets the video decoder.
+ */
+static void wc3video_reset (video_decoder_t *this_gen) {
+ wc3video_decoder_t *this = (wc3video_decoder_t *) this_gen;
+
+ this->size = 0;
+}
+
+/*
+ * This function is called when xine shuts down the decoder. It should
+ * free any memory and release any other resources allocated during the
+ * execution of the decoder.
+ */
+static void wc3video_close (video_decoder_t *this_gen) {
+ wc3video_decoder_t *this = (wc3video_decoder_t *) this_gen;
+
+ if (this->buf) {
+ free (this->buf);
+ this->buf = NULL;
+ }
+
+ if (this->decoder_ok) {
+ this->decoder_ok = 0;
+ this->video_out->close(this->video_out);
+ }
+}
+
+/*
+ * This function returns the human-readable ID string to identify
+ * this decoder.
+ */
+static char *wc3video_get_id(void) {
+ return "WC3 Video";
+}
+
+/*
+ * This function frees the video decoder instance allocated to the decoder.
+ */
+static void wc3video_dispose (video_decoder_t *this_gen) {
+ free (this_gen);
+}
+
+/*
+ * This function should be the plugin's only advertised function to the
+ * outside world. It allows xine to query the plugin module for the addresses
+ * to the necessary functions in the video decoder object. The video
+ * decoder object also has a priority field which allows different decoder
+ * plugins for the same buffer types to coexist peacefully. The higher the
+ * priority number, the more precedence a decoder has. E.g., 9 beats 1.
+ */
+video_decoder_t *init_video_decoder_plugin (int iface_version, xine_t *xine) {
+
+ wc3video_decoder_t *this ;
+
+ if (iface_version != 10) {
+ printf( "wc3video: plugin doesn't support plugin API version %d.\n"
+ "wc3video: this means there's a version mismatch between xine and this "
+ "wc3video: decoder plugin.\nInstalling current plugins should help.\n",
+ iface_version);
+ return NULL;
+ }
+
+ this = (wc3video_decoder_t *) malloc (sizeof (wc3video_decoder_t));
+ memset(this, 0, sizeof (wc3video_decoder_t));
+
+ this->video_decoder.interface_version = iface_version;
+ this->video_decoder.can_handle = wc3video_can_handle;
+ this->video_decoder.init = wc3video_init;
+ this->video_decoder.decode_data = wc3video_decode_data;
+ this->video_decoder.flush = wc3video_flush;
+ this->video_decoder.reset = wc3video_reset;
+ this->video_decoder.close = wc3video_close;
+ this->video_decoder.get_identifier = wc3video_get_id;
+ this->video_decoder.dispose = wc3video_dispose;
+ this->video_decoder.priority = 9;
+
+ return (video_decoder_t *) this;
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-22 14:55:37 +0000