[FFmpeg-devel] [PATCH 1/8] avcodec/smacker: Remove write-only and unused variables

[Paul B Mahol]

probably ok

On 7/31/20, Andreas Rheinhardt <andreas.rheinhardt at gmail.com> wrote:
> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>
> ---
>  libavcodec/smacker.c | 8 --------
>  1 file changed, 8 deletions(-)
>
> diff --git a/libavcodec/smacker.c b/libavcodec/smacker.c
> index 9f054f071d..e53183318e 100644
> --- a/libavcodec/smacker.c
> +++ b/libavcodec/smacker.c
> @@ -59,7 +59,6 @@ typedef struct SmackVContext {
>   */
>  typedef struct HuffContext {
>      int length;
> -    int maxlength;
>      int current;
>      uint32_t *bits;
>      int *lengths;
> @@ -72,7 +71,6 @@ typedef struct DBCtx {
>      int *recode1, *recode2;
>      int escapes[3];
>      int *last;
> -    int lcur;
>  } DBCtx;
>
>  /* possible runs of blocks */
> @@ -116,8 +114,6 @@ static int smacker_decode_tree(GetBitContext *gb,
> HuffContext *hc, uint32_t pref
>          }
>          hc->values[hc->current] = get_bits(gb, 8);
>          hc->current++;
> -        if(hc->maxlength < length)
> -            hc->maxlength = length;
>          return 0;
>      } else { //Node
>          int r;
> @@ -200,14 +196,12 @@ static int smacker_decode_header_tree(SmackVContext
> *smk, GetBitContext *gb, int
>      }
>
>      tmp1.length = 256;
> -    tmp1.maxlength = 0;
>      tmp1.current = 0;
>      tmp1.bits = av_mallocz(256 * 4);
>      tmp1.lengths = av_mallocz(256 * sizeof(int));
>      tmp1.values = av_mallocz(256 * sizeof(int));
>
>      tmp2.length = 256;
> -    tmp2.maxlength = 0;
>      tmp2.current = 0;
>      tmp2.bits = av_mallocz(256 * 4);
>      tmp2.lengths = av_mallocz(256 * sizeof(int));
> @@ -277,7 +271,6 @@ static int smacker_decode_header_tree(SmackVContext
> *smk, GetBitContext *gb, int
>      ctx.last = last;
>
>      huff.length = ((size + 3) >> 2) + 4;
> -    huff.maxlength = 0;
>      huff.current = 0;
>      huff.values = av_mallocz_array(huff.length, sizeof(int));
>      if (!huff.values) {
> @@ -690,7 +683,6 @@ static int smka_decode_frame(AVCodecContext *avctx, void
> *data,
>      // Initialize
>      for(i = 0; i < (1 << (bits + stereo)); i++) {
>          h[i].length = 256;
> -        h[i].maxlength = 0;
>          h[i].current = 0;
>          h[i].bits = av_mallocz(256 * 4);
>          h[i].lengths = av_mallocz(256 * sizeof(int));
> --
> 2.20.1
>
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