[FFmpeg-devel] [PATCH] avformat/tty: add probe function

[Carl Eugen Hoyos]

Am Mo., 27. Jan. 2020 um 23:16 Uhr schrieb Paul B Mahol <onemda at gmail.com>:
>
> Signed-off-by: Paul B Mahol <onemda at gmail.com>
> ---
>  libavformat/tty.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
>
> diff --git a/libavformat/tty.c b/libavformat/tty.c
> index 8d48f2c45c..75af16a6f1 100644
> --- a/libavformat/tty.c
> +++ b/libavformat/tty.c
> @@ -24,6 +24,8 @@
>   * Tele-typewriter demuxer
>   */
>
> +#include <ctype.h>
> +
>  #include "libavutil/intreadwrite.h"
>  #include "libavutil/avstring.h"
>  #include "libavutil/log.h"
> @@ -42,6 +44,17 @@ typedef struct TtyDemuxContext {
>      AVRational framerate; /**< Set by a private option. */
>  } TtyDemuxContext;
>
> +static int read_probe(const AVProbeData *p)
> +{
> +    int64_t cnt = 0;
> +
> +    for (int i = 0; i < p->buf_size; i++)
> +        cnt += !!isprint(p->buf[i]);
> +
> +    return (cnt * 100 / p->buf_size) * (cnt > 500) *

> +        !!av_match_ext(p->filename, "ans,art,asc,diz,ice,nfo,txt,vt");

ff_tty_demuxer.extensions with a declaration above.

Thank you, Carl Eugen