* Copyright (c) 2003 Michael Niedermayer
* Copyright (c) 2006 Konstantin Shishkov
*
- * 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 jpeglsdec.c
+ * @file
* JPEG-LS decoder.
*/
#include "avcodec.h"
-#include "bitstream.h"
+#include "get_bits.h"
#include "golomb.h"
+#include "mathops.h"
#include "mjpeg.h"
#include "mjpegdec.h"
#include "jpegls.h"
* (or test broken JPEG-LS decoder) and slow down ordinary decoding a bit.
*
* There is no Golomb code with length >= 32 bits possible, so check and
-* avoid situation of 32 zeros, FFmpeg Golomb decoder is painfully slow
+* avoid situation of 32 zeros, Libav Golomb decoder is painfully slow
* on this errors.
*/
//#define JLS_BROKEN
JLSState *state;
int off = 0, stride = 1, width, shift;
- zero = av_mallocz(s->picture.linesize[0]);
+ zero = av_mallocz(s->picture_ptr->linesize[0]);
last = zero;
- cur = s->picture.data[0];
+ cur = s->picture_ptr->data[0];
state = av_mallocz(sizeof(JLSState));
/* initialize JPEG-LS state from JPEG parameters */
t = *((uint16_t*)last);
}
last = cur;
- cur += s->picture.linesize[0];
+ cur += s->picture_ptr->linesize[0];
if (s->restart_interval && !--s->restart_count) {
align_get_bits(&s->gb);
} else if(ilv == 1) { /* line interleaving */
int j;
int Rc[3] = {0, 0, 0};
- memset(cur, 0, s->picture.linesize[0]);
+ memset(cur, 0, s->picture_ptr->linesize[0]);
width = s->width * 3;
for(i = 0; i < s->height; i++) {
for(j = 0; j < 3; j++) {
}
}
last = cur;
- cur += s->picture.linesize[0];
+ cur += s->picture_ptr->linesize[0];
}
} else if(ilv == 2) { /* sample interleaving */
av_log(s->avctx, AV_LOG_ERROR, "Sample interleaved images are not supported.\n");
w = s->width * s->nb_components;
if(s->bits <= 8){
- uint8_t *src = s->picture.data[0];
+ uint8_t *src = s->picture_ptr->data[0];
for(i = 0; i < s->height; i++){
for(x = off; x < w; x+= stride){
src[x] <<= shift;
}
- src += s->picture.linesize[0];
+ src += s->picture_ptr->linesize[0];
}
}else{
- uint16_t *src = (uint16_t*) s->picture.data[0];
+ uint16_t *src = (uint16_t*) s->picture_ptr->data[0];
for(i = 0; i < s->height; i++){
for(x = 0; x < w; x++){
src[x] <<= shift;
}
- src += s->picture.linesize[0]/2;
+ src += s->picture_ptr->linesize[0]/2;
}
}
}
}
-AVCodec jpegls_decoder = {
- "jpegls",
- CODEC_TYPE_VIDEO,
- CODEC_ID_JPEGLS,
- sizeof(MJpegDecodeContext),
- ff_mjpeg_decode_init,
- NULL,
- ff_mjpeg_decode_end,
- ff_mjpeg_decode_frame,
- CODEC_CAP_DR1,
+AVCodec ff_jpegls_decoder = {
+ .name = "jpegls",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_JPEGLS,
+ .priv_data_size = sizeof(MJpegDecodeContext),
+ .init = ff_mjpeg_decode_init,
+ .close = ff_mjpeg_decode_end,
+ .decode = ff_mjpeg_decode_frame,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("JPEG-LS"),
};