[FFmpeg-devel] [PATCH] ffprobe: provide format parameters to av_open_input_file()

[Stefano Sabatini]

On date Friday 2011-03-25 19:12:52 +0100, Stefano Sabatini encoded:
> Provide a non-NULL AVFormatParameters structure to
> av_open_input_file() in open_input_file().
> 
> This is required because otherwise av_open_input_file() will allocate
> and use a new format context, discarding the options set in the
> provided format context.
> ---
>  ffprobe.c |    5 ++++-
>  1 files changed, 4 insertions(+), 1 deletions(-)
> 
> diff --git a/ffprobe.c b/ffprobe.c
> index d7362dd..9c2fd43 100644
> --- a/ffprobe.c
> +++ b/ffprobe.c
> @@ -261,12 +261,15 @@ static void show_format(AVFormatContext *fmt_ctx)
>  static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename)
>  {
>      int err, i;
> +    AVFormatParameters fmt_params;
>      AVFormatContext *fmt_ctx;
>  
> +    memset(&fmt_params, 0, sizeof(fmt_params));
> +    fmt_params.prealloced_context = 1;
>      fmt_ctx = avformat_alloc_context();
>      set_context_opts(fmt_ctx, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
>  
> -    if ((err = av_open_input_file(&fmt_ctx, filename, iformat, 0, NULL)) < 0) {
> +    if ((err = av_open_input_file(&fmt_ctx, filename, iformat, 0, &fmt_params)) < 0) {
>          print_error(filename, err);
>          return err;
>      }

BTW what was the plan for getting rid of AVFormatParameters? (I
suppose that would require to move params to AVFormatContext).
-- 
FFmpeg = Formidable Fantastic MultiPurpose Erudite God