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lavc/pngdec: return meaningful error codes

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This commit is contained in:
Stefano Sabatini 2013-06-25 10:02:22 +02:00
parent 015cc3239a
commit 0a3589bf2f
1 changed files with 6 additions and 6 deletions
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12
libavcodec/pngdec.c
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@ -368,8 +368,8 @@ static int png_decode_idat(PNGDecContext *s, int length)
while (s->zstream.avail_in > 0) {
ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);
if (ret != Z_OK && ret != Z_STREAM_END) {
av_log(s->avctx, AV_LOG_ERROR, "inflate returned %d\n", ret);
return -1;
av_log(s->avctx, AV_LOG_ERROR, "inflate returned error %d\n", ret);
return AVERROR_EXTERNAL;
}
if (s->zstream.avail_out == 0) {
if (!(s->state & PNG_ALLIMAGE)) {
@ -519,7 +519,7 @@ static int decode_frame(AVCodecContext *avctx,
if (sig != PNGSIG &&
sig != MNGSIG) {
av_log(avctx, AV_LOG_ERROR, "Missing png signature\n");
return -1;
return AVERROR_INVALIDDATA;
}
s->y = s->state = 0;
@ -530,8 +530,8 @@ static int decode_frame(AVCodecContext *avctx,
s->zstream.opaque = NULL;
ret = inflateInit(&s->zstream);
if (ret != Z_OK) {
av_log(avctx, AV_LOG_ERROR, "inflateInit returned %d\n", ret);
return -1;
av_log(avctx, AV_LOG_ERROR, "inflateInit returned error %d\n", ret);
return AVERROR_EXTERNAL;
}
for (;;) {
if (bytestream2_get_bytes_left(&s->gb) <= 0) {
@ -859,7 +859,7 @@ static int decode_frame(AVCodecContext *avctx,
return ret;
fail:
av_dict_free(&metadata);
ret = -1;
ret = AVERROR_INVALIDDATA;
goto the_end;
}