[FFmpeg-devel] [PATCH v3 5/5] avcodec/utils: simplify, remove duplicate code

Andreas Rheinhardt andreas.rheinhardt at gmail.com
Thu Apr 30 17:03:44 EEST 2020


lance.lmwang at gmail.com:
> From: Limin Wang <lance.lmwang at gmail.com>
> 
> Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> ---
>  libavcodec/utils.c | 38 ++++++--------------------------------
>  1 file changed, 6 insertions(+), 32 deletions(-)
> 
> diff --git a/libavcodec/utils.c b/libavcodec/utils.c
> index e77090d..1a8ca16 100644
> --- a/libavcodec/utils.c
> +++ b/libavcodec/utils.c
> @@ -583,38 +583,12 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *code
>      }
>      avctx->internal = avci;
>  
> -    avci->to_free = av_frame_alloc();
> -    if (!avci->to_free) {
> -        ret = AVERROR(ENOMEM);
> -        goto free_and_end;
> -    }
> -
> -    avci->compat_decode_frame = av_frame_alloc();
> -    if (!avci->compat_decode_frame) {
> -        ret = AVERROR(ENOMEM);
> -        goto free_and_end;
> -    }
> -
> -    avci->buffer_frame = av_frame_alloc();
> -    if (!avci->buffer_frame) {
> -        ret = AVERROR(ENOMEM);
> -        goto free_and_end;
> -    }
> -
> -    avci->buffer_pkt = av_packet_alloc();
> -    if (!avci->buffer_pkt) {
> -        ret = AVERROR(ENOMEM);
> -        goto free_and_end;
> -    }
> -
> -    avci->ds.in_pkt = av_packet_alloc();
> -    if (!avci->ds.in_pkt) {
> -        ret = AVERROR(ENOMEM);
> -        goto free_and_end;
> -    }
> -
> -    avci->last_pkt_props = av_packet_alloc();
> -    if (!avci->last_pkt_props) {
> +    if (!(avci->to_free             = av_frame_alloc())  ||
> +        !(avci->compat_decode_frame = av_frame_alloc())  ||
> +        !(avci->buffer_frame        = av_frame_alloc())  ||
> +        !(avci->buffer_pkt          = av_packet_alloc()) ||
> +        !(avci->ds.in_pkt           = av_packet_alloc()) ||
> +        !(avci->last_pkt_props      = av_packet_alloc())) {
>          ret = AVERROR(ENOMEM);
>          goto free_and_end;
>      }
> 
LGTM. But I don't maintain that code.

- Andreas


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