generic-library/ffmpeg
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Replace computations of remaining bits with calls to get_bits_left().

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This commit is contained in:
Alex Converse
2012-03-04 17:53:50 -08:00
parent b70feb4053
commit 3574a85ce5
10 changed files with 18 additions and 19 deletions
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9
libavcodec/mjpegdec.c
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@@ -854,9 +854,9 @@ static int mjpeg_decode_scan(MJpegDecodeContext *s, int nb_components, int Ah,
if (s->restart_interval && !s->restart_count)
s->restart_count = s->restart_interval;
if (get_bits_count(&s->gb)>s->gb.size_in_bits) {
if (get_bits_left(&s->gb) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "overread %d\n",
get_bits_count(&s->gb) - s->gb.size_in_bits);
-get_bits_left(&s->gb));
return -1;
}
for (i = 0; i < nb_components; i++) {
@@ -1147,7 +1147,7 @@ static int mjpeg_decode_app(MJpegDecodeContext *s)
len = get_bits(&s->gb, 16);
if (len < 5)
return -1;
if (8 * len + get_bits_count(&s->gb) > s->gb.size_in_bits)
if (8 * len > get_bits_left(&s->gb))
return -1;
id = get_bits_long(&s->gb, 32);
@@ -1288,8 +1288,7 @@ out:
static int mjpeg_decode_com(MJpegDecodeContext *s)
{
int len = get_bits(&s->gb, 16);
if (len >= 2 &&
8 * len - 16 + get_bits_count(&s->gb) <= s->gb.size_in_bits) {
if (len >= 2 && 8 * len - 16 <= get_bits_left(&s->gb)) {
char *cbuf = av_malloc(len - 1);
if (cbuf) {
int i;