mirror of https://git.ffmpeg.org/ffmpeg.git
avfilter/fifo: Remove (a)fifo filters
Obsolete since 4ca1fb9d2a.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
parent
9ae40f282d
commit
f6ec01147f
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@ -14122,15 +14122,6 @@ For example:
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ffmpeg -i in.vob -vf "fieldorder=bff" out.dv
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@end example
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@section fifo, afifo
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Buffer input images and send them when they are requested.
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It is mainly useful when auto-inserted by the libavfilter
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framework.
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It does not take parameters.
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@section fillborders
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Fill borders of the input video, without changing video stream dimensions.
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@ -16,7 +16,6 @@ OBJS = allfilters.o \
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colorspace.o \
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ccfifo.o \
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drawutils.o \
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fifo.o \
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formats.o \
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framepool.o \
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framequeue.o \
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@ -611,8 +611,6 @@ extern const AVFilter ff_asrc_abuffer;
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extern const AVFilter ff_vsrc_buffer;
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extern const AVFilter ff_asink_abuffer;
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extern const AVFilter ff_vsink_buffer;
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extern const AVFilter ff_af_afifo;
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extern const AVFilter ff_vf_fifo;
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#include "libavfilter/filter_list.c"
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@ -1,165 +0,0 @@
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/*
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* Copyright (c) 2007 Bobby Bingham
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* FIFO buffering filter
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*/
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#include "libavutil/common.h"
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#include "libavutil/mathematics.h"
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#include "audio.h"
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#include "avfilter.h"
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#include "internal.h"
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typedef struct Buf {
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AVFrame *frame;
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struct Buf *next;
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} Buf;
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typedef struct FifoContext {
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Buf root;
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Buf *last; ///< last buffered frame
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/**
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* When a specific number of output samples is requested, the partial
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* buffer is stored here
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*/
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AVFrame *out;
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int allocated_samples; ///< number of samples out was allocated for
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} FifoContext;
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static av_cold int init(AVFilterContext *ctx)
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{
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FifoContext *s = ctx->priv;
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s->last = &s->root;
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return 0;
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}
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static av_cold void uninit(AVFilterContext *ctx)
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{
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FifoContext *s = ctx->priv;
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Buf *buf, *tmp;
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for (buf = s->root.next; buf; buf = tmp) {
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tmp = buf->next;
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av_frame_free(&buf->frame);
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av_free(buf);
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}
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av_frame_free(&s->out);
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}
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static int add_to_queue(AVFilterLink *inlink, AVFrame *frame)
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{
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FifoContext *s = inlink->dst->priv;
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s->last->next = av_mallocz(sizeof(Buf));
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if (!s->last->next) {
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av_frame_free(&frame);
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return AVERROR(ENOMEM);
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}
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s->last = s->last->next;
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s->last->frame = frame;
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return 0;
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}
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static void queue_pop(FifoContext *s)
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{
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Buf *tmp = s->root.next->next;
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if (s->last == s->root.next)
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s->last = &s->root;
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av_freep(&s->root.next);
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s->root.next = tmp;
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}
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static int request_frame(AVFilterLink *outlink)
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{
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FifoContext *s = outlink->src->priv;
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int ret = 0;
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if (!s->root.next) {
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if ((ret = ff_request_frame(outlink->src->inputs[0])) < 0)
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return ret;
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if (!s->root.next)
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return 0;
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}
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ret = ff_filter_frame(outlink, s->root.next->frame);
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queue_pop(s);
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return ret;
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}
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static const AVFilterPad avfilter_vf_fifo_inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = add_to_queue,
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},
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};
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static const AVFilterPad avfilter_vf_fifo_outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.request_frame = request_frame,
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},
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};
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const AVFilter ff_vf_fifo = {
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.name = "fifo",
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.description = NULL_IF_CONFIG_SMALL("Buffer input images and send them when they are requested."),
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.init = init,
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.uninit = uninit,
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.priv_size = sizeof(FifoContext),
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.flags = AVFILTER_FLAG_METADATA_ONLY,
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FILTER_INPUTS(avfilter_vf_fifo_inputs),
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FILTER_OUTPUTS(avfilter_vf_fifo_outputs),
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};
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static const AVFilterPad avfilter_af_afifo_inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_AUDIO,
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.filter_frame = add_to_queue,
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},
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};
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static const AVFilterPad avfilter_af_afifo_outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_AUDIO,
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.request_frame = request_frame,
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},
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};
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const AVFilter ff_af_afifo = {
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.name = "afifo",
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.description = NULL_IF_CONFIG_SMALL("Buffer input frames and send them when they are requested."),
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.init = init,
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.uninit = uninit,
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.priv_size = sizeof(FifoContext),
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.flags = AVFILTER_FLAG_METADATA_ONLY,
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FILTER_INPUTS(avfilter_af_afifo_inputs),
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FILTER_OUTPUTS(avfilter_af_afifo_outputs),
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};
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