* Quicktime Planar RGB (8BPS) Video Decoder
* Copyright (C) 2003 Roberto Togni
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
*
* Supports: PAL8 (RGB 8bpp, paletted)
* : BGR24 (RGB 24bpp) (can also output it as RGB32)
- * : RGB32 (RGB 32bpp, 4th plane is probably alpha and it's ignored)
+ * : RGB32 (RGB 32bpp, 4th plane is alpha)
*
*/
*
*/
static int decode_frame(AVCodecContext *avctx, void *data,
- int *data_size, AVPacket *avpkt)
+ int *got_frame, AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
unsigned int dlen, p, row;
const unsigned char *lp, *dp;
unsigned char count;
- unsigned int px_inc;
unsigned int planes = c->planes;
unsigned char *planemap = c->planemap;
/* Set data pointer after line lengths */
dp = encoded + planes * (height << 1);
- /* Ignore alpha plane, don't know what to do with it */
- if (planes == 4)
- planes--;
-
- px_inc = planes + (avctx->pix_fmt == AV_PIX_FMT_RGB32);
-
for (p = 0; p < planes; p++) {
/* Lines length pointer for this plane */
lp = encoded + p * (height << 1);
for (row = 0; row < height; row++) {
pixptr = c->pic.data[0] + row * c->pic.linesize[0] + planemap[p];
pixptr_end = pixptr + c->pic.linesize[0];
+ if(lp - encoded + row*2 + 1 >= buf_size)
+ return -1;
dlen = av_be2ne16(*(const unsigned short *)(lp + row * 2));
/* Decode a row of this plane */
while (dlen > 0) {
if ((count = *dp++) <= 127) {
count++;
dlen -= count + 1;
- if (pixptr + count * px_inc > pixptr_end)
+ if (pixptr + count * planes > pixptr_end)
break;
if (dp + count > buf + buf_size)
return -1;
while (count--) {
*pixptr = *dp++;
- pixptr += px_inc;
+ pixptr += planes;
}
} else {
count = 257 - count;
- if (pixptr + count * px_inc > pixptr_end)
+ if (pixptr + count * planes > pixptr_end)
break;
while (count--) {
*pixptr = *dp;
- pixptr += px_inc;
+ pixptr += planes;
}
dp++;
dlen -= 2;
memcpy (c->pic.data[1], c->pal, AVPALETTE_SIZE);
}
- *data_size = sizeof(AVFrame);
+ *got_frame = 1;
*(AVFrame*)data = c->pic;
/* always report that the buffer was completely consumed */
c->avctx = avctx;
c->pic.data[0] = NULL;
+ avcodec_get_frame_defaults(&c->pic);
switch (avctx->bits_per_coded_sample) {
case 8:
avctx->pix_fmt = AV_PIX_FMT_PAL8;
c->planemap[0] = 1; // 1st plane is red
c->planemap[1] = 2; // 2nd plane is green
c->planemap[2] = 3; // 3rd plane is blue
- c->planemap[3] = 0; // 4th plane is alpha???
+ c->planemap[3] = 0; // 4th plane is alpha
#else
c->planemap[0] = 2; // 1st plane is red
c->planemap[1] = 1; // 2nd plane is green
c->planemap[2] = 0; // 3rd plane is blue
- c->planemap[3] = 3; // 4th plane is alpha???
+ c->planemap[3] = 3; // 4th plane is alpha
#endif
break;
default: