* Westwood Studios VQA Video Decoder
* Copyright (C) 2003 the ffmpeg project
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file libavcodec/vqavideo.c
- * VQA Video Decoder by Mike Melanson (melanson@pcisys.net)
- * For more information about the VQA format, visit:
- * http://wiki.multimedia.cx/index.php?title=VQA
+ * @file
+ * VQA Video Decoder
+ * @author Mike Melanson (melanson@pcisys.net)
+ * @see http://wiki.multimedia.cx/index.php?title=VQA
*
* The VQA video decoder outputs PAL8 or RGB555 colorspace data, depending
* on the type of data in the file.
#include <string.h>
#include "libavutil/intreadwrite.h"
+#include "libavutil/imgutils.h"
#include "avcodec.h"
#define PALETTE_COUNT 256
#define CPLZ_TAG MKBETAG('C', 'P', 'L', 'Z')
#define VPTZ_TAG MKBETAG('V', 'P', 'T', 'Z')
-#define VQA_DEBUG 0
-
-#if VQA_DEBUG
-#define vqa_debug printf
-#else
-static inline void vqa_debug(const char *format, ...) { }
-#endif
-
typedef struct VqaContext {
AVCodecContext *avctx;
s->vqa_version = vqa_header[0];
s->width = AV_RL16(&vqa_header[6]);
s->height = AV_RL16(&vqa_header[8]);
- if(avcodec_check_dimensions(avctx, s->width, s->height)){
+ if(av_image_check_size(s->width, s->height, 0, avctx)){
s->width= s->height= 0;
return -1;
}
while (src_index < src_size) {
- vqa_debug(" opcode %02X: ", src[src_index]);
+ av_dlog(NULL, " opcode %02X: ", src[src_index]);
/* 0x80 means that frame is finished */
if (src[src_index] == 0x80)
src_index += 2;
src_pos = AV_RL16(&src[src_index]);
src_index += 2;
- vqa_debug("(1) copy %X bytes from absolute pos %X\n", count, src_pos);
+ av_dlog(NULL, "(1) copy %X bytes from absolute pos %X\n", count, src_pos);
CHECK_COUNT();
for (i = 0; i < count; i++)
dest[dest_index + i] = dest[src_pos + i];
count = AV_RL16(&src[src_index]);
src_index += 2;
color = src[src_index++];
- vqa_debug("(2) set %X bytes to %02X\n", count, color);
+ av_dlog(NULL, "(2) set %X bytes to %02X\n", count, color);
CHECK_COUNT();
memset(&dest[dest_index], color, count);
dest_index += count;
count = (src[src_index++] & 0x3F) + 3;
src_pos = AV_RL16(&src[src_index]);
src_index += 2;
- vqa_debug("(3) copy %X bytes from absolute pos %X\n", count, src_pos);
+ av_dlog(NULL, "(3) copy %X bytes from absolute pos %X\n", count, src_pos);
CHECK_COUNT();
for (i = 0; i < count; i++)
dest[dest_index + i] = dest[src_pos + i];
} else if (src[src_index] > 0x80) {
count = src[src_index++] & 0x3F;
- vqa_debug("(4) copy %X bytes from source to dest\n", count);
+ av_dlog(NULL, "(4) copy %X bytes from source to dest\n", count);
CHECK_COUNT();
memcpy(&dest[dest_index], &src[src_index], count);
src_index += count;
count = ((src[src_index] & 0x70) >> 4) + 3;
src_pos = AV_RB16(&src[src_index]) & 0x0FFF;
src_index += 2;
- vqa_debug("(5) copy %X bytes from relpos %X\n", count, src_pos);
+ av_dlog(NULL, "(5) copy %X bytes from relpos %X\n", count, src_pos);
CHECK_COUNT();
for (i = 0; i < count; i++)
dest[dest_index + i] = dest[dest_index - src_pos + i];
switch (s->vqa_version) {
case 1:
-/* still need sample media for this case (only one game, "Legend of
- * Kyrandia III : Malcolm's Revenge", is known to use this version) */
lobyte = s->decode_buffer[lobytes * 2];
hibyte = s->decode_buffer[(lobytes * 2) + 1];
vector_index = ((hibyte << 8) | lobyte) >> 3;
return 0;
}
-AVCodec vqa_decoder = {
- "vqavideo",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_WS_VQA,
- sizeof(VqaContext),
- vqa_decode_init,
- NULL,
- vqa_decode_end,
- vqa_decode_frame,
- CODEC_CAP_DR1,
+AVCodec ff_vqa_decoder = {
+ .name = "vqavideo",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_WS_VQA,
+ .priv_data_size = sizeof(VqaContext),
+ .init = vqa_decode_init,
+ .close = vqa_decode_end,
+ .decode = vqa_decode_frame,
+ .capabilities = CODEC_CAP_DR1,
.long_name = NULL_IF_CONFIG_SMALL("Westwood Studios VQA (Vector Quantized Animation) video"),
};
projects / ffmpeg / blobdiff