On 07/05/2012 03:57 PM, Anton Khirnov wrote:
> Input on/off state can change in request_samples(), which can result in
> a state where only the first input is active. get_available_samples()
> will then return 0, and request_frame() will fail with EAGAIN even
> though there is data on the single active input.
>
> Take this into account and check the number of active inputs again after
> calling request_samples().
> ---
> libavfilter/af_amix.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/libavfilter/af_amix.c b/libavfilter/af_amix.c
> index deeaa03..439231f 100644
> --- a/libavfilter/af_amix.c
> +++ b/libavfilter/af_amix.c
> @@ -437,7 +437,9 @@ static int request_frame(AVFilterLink *outlink)
> ret = calc_active_inputs(s);
> if (ret < 0)
> return ret;
> + }
>
> + if (s->active_inputs > 1) {
> available_samples = get_available_samples(s);
> if (!available_samples)
> return AVERROR(EAGAIN);
yeah, LGTM.
-Justin
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