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ptx: emit a warning on insufficient picture data

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Return the whole packet as consumed in this case and not the size the
packet should have had. Move the insufficient data check into the for
condition to fix a ISO C90 error on bigendian.
This commit is contained in:
Janne Grunau 2011-12-10 12:55:08 +01:00
parent 97334f106c
commit 2b53e696c8
1 changed files with 6 additions and 3 deletions
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9
libavcodec/ptx.c
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@ -84,9 +84,7 @@ static int ptx_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
ptr = p->data[0];
stride = p->linesize[0];
for (y=0; y<h; y++) {
if (buf_end - buf < w * bytes_per_pixel)
break;
for (y = 0; y < h && buf_end - buf < w * bytes_per_pixel; y++) {
#if HAVE_BIGENDIAN
unsigned int x;
for (x=0; x<w*bytes_per_pixel; x+=bytes_per_pixel)
@ -101,6 +99,11 @@ static int ptx_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
*picture = s->picture;
*data_size = sizeof(AVPicture);
if (y < h) {
av_log(avctx, AV_LOG_WARNING, "incomplete packet\n");
return avpkt->size;
}
return offset + w*h*bytes_per_pixel;
}