[FFmpeg-devel] [PATCH] Implement av_strerror()

[Stefano Sabatini]

On date Sunday 2010-03-14 13:03:58 +0100, Stefano Sabatini encoded:
[...]
> ---
>  cmdutils.c |   30 ++++--------------------------
>  1 files changed, 4 insertions(+), 26 deletions(-)
> 
> diff --git a/cmdutils.c b/cmdutils.c
> index a4306d0..1fe4387 100644
> --- a/cmdutils.c
> +++ b/cmdutils.c
> @@ -291,39 +291,17 @@ void set_context_opts(void *ctx, void *opts_ctx, int flags)
>  
>  void print_error(const char *filename, int err)
>  {
> +    char errbuf[128];
> +
>      switch(err) {
> -    case AVERROR_NUMEXPECTED:
> -        fprintf(stderr, "%s: Incorrect image filename syntax.\n"
> -                "Use '%%d' to specify the image number:\n"
> -                "  for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
> -                "  for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
> -                filename);
> -        break;
> -    case AVERROR_INVALIDDATA:
> -        fprintf(stderr, "%s: Error while parsing header\n", filename);
> -        break;
> -    case AVERROR_NOFMT:
> -        fprintf(stderr, "%s: Unknown format\n", filename);
> -        break;
> -    case AVERROR(EIO):
> -        fprintf(stderr, "%s: I/O error occurred\n"
> -                "Usually that means that input file is truncated and/or corrupted.\n",
> -                filename);
> -        break;
> -    case AVERROR(ENOMEM):
> -        fprintf(stderr, "%s: memory allocation error occurred\n", filename);
> -        break;
> -    case AVERROR(ENOENT):
> -        fprintf(stderr, "%s: no such file or directory\n", filename);
> -        break;
>  #if CONFIG_NETWORK
>      case AVERROR(FF_NETERROR(EPROTONOSUPPORT)):
>          fprintf(stderr, "%s: Unsupported network protocol\n", filename);
>          break;
>  #endif
>      default:
> -        fprintf(stderr, "%s: Error while opening file\n", filename);
> -        break;
> +        av_strerror(err, errbuf, sizeof(errbuf));
> +        fprintf(stderr, "%s: %s\n", filename, errbuf);
>      }
>  }

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