[FFmpeg-devel] [PATCH] au: add duration info

[Stefano Sabatini]

On date Wednesday 2011-07-13 12:23:35 +0200, ami_stuff encoded:
> Hi,
> 
> Patch updated. 
> 
> Regards

> diff --git a/libavformat/au.c b/libavformat/au.c
> index 23365c4..d7f1a36 100644
> --- a/libavformat/au.c
> +++ b/libavformat/au.c
> @@ -120,7 +120,7 @@ static int au_probe(AVProbeData *p)
>  static int au_read_header(AVFormatContext *s,
>                            AVFormatParameters *ap)
>  {
> -    int size;
> +    int size, data_size = 0;
>      unsigned int tag;
>      AVIOContext *pb = s->pb;
>      unsigned int id, channels, rate;
> @@ -132,7 +132,12 @@ static int au_read_header(AVFormatContext *s,
>      if (tag != MKTAG('.', 's', 'n', 'd'))
>          return -1;
>      size = avio_rb32(pb); /* header size */
> -    avio_rb32(pb); /* data size */
> +    data_size = avio_rb32(pb); /* size in bytes */
> +
> +    if (data_size < 0) {
> +        av_log(s, AV_LOG_ERROR, "negative data_size\n");
> +        return AVERROR_INVALIDDATA;
> +    }
>  
>      id = avio_rb32(pb);
>      rate = avio_rb32(pb);
> @@ -159,6 +164,10 @@ static int au_read_header(AVFormatContext *s,
>      st->codec->codec_id = codec;
>      st->codec->channels = channels;
>      st->codec->sample_rate = rate;
> +
> +    if (data_size)
> +        st->duration = (data_size<<3) / (st->codec->channels * (uint64_t)av_get_bits_per_sample(st->codec->codec_id));
> +
>      av_set_pts_info(st, 64, 1, rate);
>      return 0;
>  }

Looks OK, I'll push it soon unless I see more comments.
-- 
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