* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "bytestream.h"
#include "get_bits.h"
for (i=0; i<pallen; i++)
*dst++ = bytestream_get_be24(src);
- memset(dst, 0, (256 - pallen) * sizeof(*dst));
+ if (pallen < 256)
+ memset(dst, 0, (256 - pallen) * sizeof(*dst));
}
static int pcx_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
bytes_per_scanline;
uint8_t *ptr;
uint8_t const *bufstart = buf;
+ uint8_t *scanline;
+ int ret = -1;
if (buf[0] != 0x0a || buf[1] > 5) {
av_log(avctx, AV_LOG_ERROR, "this is not PCX encoded data\n");
if (p->data[0])
avctx->release_buffer(avctx, p);
- if (avcodec_check_dimensions(avctx, w, h))
+ if (av_image_check_size(w, h, 0, avctx))
return -1;
if (w != avctx->width || h != avctx->height)
avcodec_set_dimensions(avctx, w, h);
return -1;
}
- p->pict_type = FF_I_TYPE;
+ p->pict_type = AV_PICTURE_TYPE_I;
ptr = p->data[0];
stride = p->linesize[0];
- if (nplanes == 3 && bits_per_pixel == 8) {
- uint8_t scanline[bytes_per_scanline];
+ scanline = av_malloc(bytes_per_scanline);
+ if (!scanline)
+ return AVERROR(ENOMEM);
+ if (nplanes == 3 && bits_per_pixel == 8) {
for (y=0; y<h; y++) {
buf = pcx_rle_decode(buf, scanline, bytes_per_scanline, compressed);
}
} else if (nplanes == 1 && bits_per_pixel == 8) {
- uint8_t scanline[bytes_per_scanline];
const uint8_t *palstart = bufstart + buf_size - 769;
for (y=0; y<h; y++, ptr+=stride) {
}
if (*buf++ != 12) {
av_log(avctx, AV_LOG_ERROR, "expected palette after image data\n");
- return -1;
+ goto end;
}
} else if (nplanes == 1) { /* all packed formats, max. 16 colors */
- uint8_t scanline[bytes_per_scanline];
GetBitContext s;
for (y=0; y<h; y++) {
}
} else { /* planar, 4, 8 or 16 colors */
- uint8_t scanline[bytes_per_scanline];
int i;
for (y=0; y<h; y++) {
*picture = s->picture;
*data_size = sizeof(AVFrame);
- return buf - bufstart;
+ ret = buf - bufstart;
+end:
+ av_free(scanline);
+ return ret;
}
static av_cold int pcx_end(AVCodecContext *avctx) {
return 0;
}
-AVCodec pcx_decoder = {
+AVCodec ff_pcx_decoder = {
"pcx",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_PCX,
sizeof(PCXContext),
pcx_init,