@@ -2990,7 +2990,7 @@ wmv3image_decoder_select="wmv3_decoder"
xma1_decoder_select="wmapro_decoder"
xma2_decoder_select="wmapro_decoder"
ylc_decoder_select="bswapdsp"
-zerocodec_decoder_deps="zlib"
+zerocodec_decoder_select="inflate_wrapper"
zlib_decoder_deps="zlib"
zlib_encoder_deps="zlib"
zmbv_decoder_select="inflate_wrapper"
@@ -20,11 +20,12 @@
#include "avcodec.h"
#include "internal.h"
+#include "zlib_wrapper.h"
#include "libavutil/common.h"
typedef struct ZeroCodecContext {
AVFrame *previous_frame;
- z_stream zstream;
+ FFZStream zstream;
} ZeroCodecContext;
static int zerocodec_decode_frame(AVCodecContext *avctx, void *data,
@@ -33,7 +34,7 @@ static int zerocodec_decode_frame(AVCodecContext *avctx, void *data,
ZeroCodecContext *zc = avctx->priv_data;
AVFrame *pic = data;
AVFrame *prev_pic = zc->previous_frame;
- z_stream *zstream = &zc->zstream;
+ z_stream *const zstream = &zc->zstream.zstream;
uint8_t *prev = prev_pic->data[0];
uint8_t *dst;
int i, j, zret, ret;
@@ -106,7 +107,7 @@ static av_cold int zerocodec_decode_close(AVCodecContext *avctx)
av_frame_free(&zc->previous_frame);
- inflateEnd(&zc->zstream);
+ ff_inflate_end(&zc->zstream);
return 0;
}
@@ -114,27 +115,15 @@ static av_cold int zerocodec_decode_close(AVCodecContext *avctx)
static av_cold int zerocodec_decode_init(AVCodecContext *avctx)
{
ZeroCodecContext *zc = avctx->priv_data;
- z_stream *zstream = &zc->zstream;
- int zret;
avctx->pix_fmt = AV_PIX_FMT_UYVY422;
avctx->bits_per_raw_sample = 8;
- zstream->zalloc = Z_NULL;
- zstream->zfree = Z_NULL;
- zstream->opaque = Z_NULL;
-
- zret = inflateInit(zstream);
- if (zret != Z_OK) {
- av_log(avctx, AV_LOG_ERROR, "Could not initialize inflate: %d.\n", zret);
- return AVERROR(ENOMEM);
- }
-
zc->previous_frame = av_frame_alloc();
if (!zc->previous_frame)
return AVERROR(ENOMEM);
- return 0;
+ return ff_inflate_init(&zc->zstream, avctx);
}
static void zerocodec_decode_flush(AVCodecContext *avctx)
This fixes the problem of potentially closing a z_stream that has never been successfully initialized. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com> --- configure | 2 +- libavcodec/zerocodec.c | 21 +++++---------------- 2 files changed, 6 insertions(+), 17 deletions(-)