[FFmpeg-devel] [PATCH] avfilter/src_movie: add various commands

Muhammad Faiz mfcc64 at gmail.com
Wed Feb 17 17:26:45 CET 2016


On Wed, Feb 17, 2016 at 10:58 PM, wm4 <nfxjfg at googlemail.com> wrote:
> On Wed, 17 Feb 2016 22:55:47 +0700
> Muhammad Faiz <mfcc64 at gmail.com> wrote:
>
>> On Wed, Feb 17, 2016 at 10:20 PM, wm4 <nfxjfg at googlemail.com> wrote:
>> > On Wed, 17 Feb 2016 21:30:20 +0700
>> > Muhammad Faiz <mfcc64 at gmail.com> wrote:
>> >
>> >> From 6291c06dacbe2aa48a97bf36835ec8a3bce8a40a Mon Sep 17 00:00:00 2001
>> >> From: Muhammad Faiz <mfcc64 at gmail.com>
>> >> Date: Wed, 17 Feb 2016 21:21:12 +0700
>> >> Subject: [PATCH] avfilter/src_movie: add various commands
>> >>
>> >> add seek command
>> >> add get_duration command
>> >> ---
>> >>  doc/filters.texi        | 24 ++++++++++++++++++++++++
>> >>  libavfilter/src_movie.c | 37 +++++++++++++++++++++++++++++++++++++
>> >>  2 files changed, 61 insertions(+)
>> >>
>> >
>> >> +static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
>> >> +                           char *res, int res_len, int flags)
>> >> +{
>> >> +    MovieContext *movie = ctx->priv;
>> >> +    int ret = AVERROR(ENOSYS);
>> >> +
>> >> +    if (!strcmp(cmd, "seek")) {
>> >> +        int idx, flags;
>> >> +        int64_t ts;
>> >> +        char tail[2];
>> >> +
>> >> +        if (sscanf(args, "%i|%"SCNi64"|%i %1s", &idx, &ts, &flags, tail) != 3)
>> >> +            return AVERROR(EINVAL);
>> >> +
>> >> +        return av_seek_frame(movie->format_ctx, idx, ts, flags);
>> >
>> > This can't work correctly. You have to flush the decoder (which you
>> > could easily do, but fail to do here), and the filters (which you can't
>> > do unless you add seeking and/or flushing support to libavfilter).
>> I don't see avformat_flush or avio_flush call on ffplay
>
> No, the decoders.
>

OK, I fix it in new patch
patch attached

Thank's
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