#include "libavutil/intreadwrite.h"
#include "libavutil/imgutils.h"
#include "avcodec.h"
-
-#define RAS_MAGIC 0x59a66a95
-
-/* The Old and Standard format types indicate that the image data is
- * uncompressed. There is no difference between the two formats. */
-#define RT_OLD 0
-#define RT_STANDARD 1
-
-/* The Byte-Encoded format type indicates that the image data is compressed
- * using a run-length encoding scheme. */
-#define RT_BYTE_ENCODED 2
-
-/* The RGB format type indicates that the image is uncompressed with reverse
- * component order from Old and Standard (RGB vs BGR). */
-#define RT_FORMAT_RGB 3
-
-/* The TIFF and IFF format types indicate that the raster file was originally
- * converted from either of these file formats. We do not have any samples or
- * documentation of the format details. */
-#define RT_FORMAT_TIFF 4
-#define RT_FORMAT_IFF 5
-
-/* The Experimental format type is implementation-specific and is generally an
- * indication that the image file does not conform to the Sun Raster file
- * format specification. */
-#define RT_EXPERIMENTAL 0xffff
+#include "sunrast.h"
typedef struct SUNRASTContext {
AVFrame picture;
unsigned int w, h, depth, type, maptype, maplength, stride, x, y, len, alen;
uint8_t *ptr;
const uint8_t *bufstart = buf;
+ int ret;
if (avpkt->size < 32)
return AVERROR_INVALIDDATA;
if (AV_RB32(buf) != RAS_MAGIC) {
av_log(avctx, AV_LOG_ERROR, "this is not sunras encoded data\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
w = AV_RB32(buf + 4);
}
if (type > RT_FORMAT_IFF) {
av_log(avctx, AV_LOG_ERROR, "invalid (compression) type\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
if (av_image_check_size(w, h, 0, avctx)) {
av_log(avctx, AV_LOG_ERROR, "invalid image size\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
if (maptype & ~1) {
av_log(avctx, AV_LOG_ERROR, "invalid colormap type\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
break;
default:
av_log(avctx, AV_LOG_ERROR, "invalid depth\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
if (p->data[0])
if (w != avctx->width || h != avctx->height)
avcodec_set_dimensions(avctx, w, h);
- if (avctx->get_buffer(avctx, p) < 0) {
+ if ((ret = avctx->get_buffer(avctx, p)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return -1;
+ return ret;
}
p->pict_type = AV_PICTURE_TYPE_I;
if (maplength % 3 || maplength > 768) {
av_log(avctx, AV_LOG_WARNING, "invalid colormap length\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
ptr = p->data[1];
if (buf_end - buf < 1)
return AVERROR_INVALIDDATA;
- if ((value = *buf++) == 0x80) {
+ if ((value = *buf++) == RLE_TRIGGER) {
run = *buf++ + 1;
if (run != 1)
value = *buf++;