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authorMichael Niedermayer <michaelni@gmx.at>2012-09-15 21:30:57 +0200
committerMichael Niedermayer <michaelni@gmx.at>2012-09-15 22:13:21 +0200
commit0da0b5e0f83df342f997b35e184ee456b6a7873e (patch)
treeca9372c3530f949472a7d51f50c3103a04415695 /libavcodec
parent5a627c14b53c520cda410d2cb1b64dc3158bf024 (diff)
downloadffmpeg-0da0b5e0f83df342f997b35e184ee456b6a7873e.tar.gz
pngdec: av_log() zlib errors
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec')
-rw-r--r--libavcodec/pngdec.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index 67225bb7af..a5faeba42a 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -37,6 +37,7 @@
typedef struct PNGDecContext {
PNGDSPContext dsp;
+ AVCodecContext *avctx;
GetByteContext gb;
AVFrame picture1, picture2;
@@ -371,6 +372,7 @@ 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;
}
if (s->zstream.avail_out == 0) {
@@ -420,8 +422,10 @@ static int decode_frame(AVCodecContext *avctx,
s->zstream.zfree = ff_png_zfree;
s->zstream.opaque = NULL;
ret = inflateInit(&s->zstream);
- if (ret != Z_OK)
+ if (ret != Z_OK) {
+ av_log(avctx, AV_LOG_ERROR, "inflateInit returned %d\n", ret);
return -1;
+ }
for(;;) {
if (bytestream2_get_bytes_left(&s->gb) <= 0) {
av_log(avctx, AV_LOG_ERROR, "No bytes left\n");
@@ -723,6 +727,8 @@ static av_cold int png_dec_init(AVCodecContext *avctx)
ff_pngdsp_init(&s->dsp);
+ s->avctx = avctx;
+
return 0;
}