diff options
Diffstat (limited to 'libavcodec/gif.c')
| -rw-r--r-- | libavcodec/gif.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/libavcodec/gif.c b/libavcodec/gif.c index acdc0e1e0d..6af1f4abe2 100644 --- a/libavcodec/gif.c +++ b/libavcodec/gif.c @@ -43,6 +43,7 @@ typedef struct GIFContext { const AVClass *class; LZWState *lzw; uint8_t *buf; + int buf_size; AVFrame *last_frame; int flags; uint32_t palette[AVPALETTE_COUNT]; ///< local reference palette for !pal8 @@ -174,7 +175,7 @@ static int gif_image_write_image(AVCodecContext *avctx, bytestream_put_byte(bytestream, 0x08); - ff_lzw_encode_init(s->lzw, s->buf, 2 * width * height, + ff_lzw_encode_init(s->lzw, s->buf, s->buf_size, 12, FF_LZW_GIF, put_bits); ptr = buf + y_start*linesize + x_start; @@ -231,7 +232,8 @@ FF_ENABLE_DEPRECATION_WARNINGS s->transparent_index = -1; s->lzw = av_mallocz(ff_lzw_encode_state_size); - s->buf = av_malloc(avctx->width*avctx->height*2); + s->buf_size = avctx->width*avctx->height*2 + 1000; + s->buf = av_malloc(s->buf_size); s->tmpl = av_malloc(avctx->width); if (!s->tmpl || !s->buf || !s->lzw) return AVERROR(ENOMEM); @@ -321,6 +323,7 @@ static int gif_encode_close(AVCodecContext *avctx) av_freep(&s->lzw); av_freep(&s->buf); + s->buf_size = 0; av_frame_free(&s->last_frame); av_freep(&s->tmpl); return 0; |