libavresample: Remove deprecated library

Deprecated in c29038f3041a4080342b2e333c1967d136749c0f.
The resample filter based upon this library has been removed as well.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: James Almer <jamrial@gmail.com>

3 files changed, 0 insertions, 371 deletions

diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 42efa14a67..5a287364b0 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -135,7 +135,6 @@ OBJS-$(CONFIG_LV2_FILTER)                    += af_lv2.o
 OBJS-$(CONFIG_MCOMPAND_FILTER)               += af_mcompand.o
 OBJS-$(CONFIG_PAN_FILTER)                    += af_pan.o
 OBJS-$(CONFIG_REPLAYGAIN_FILTER)             += af_replaygain.o
-OBJS-$(CONFIG_RESAMPLE_FILTER)               += af_resample.o
 OBJS-$(CONFIG_RUBBERBAND_FILTER)             += af_rubberband.o
 OBJS-$(CONFIG_SIDECHAINCOMPRESS_FILTER)      += af_sidechaincompress.o
 OBJS-$(CONFIG_SIDECHAINGATE_FILTER)          += af_agate.o
diff --git a/libavfilter/af_resample.c b/libavfilter/af_resample.c
deleted file mode 100644
index caa97d8ab0..0000000000
--- a/libavfilter/af_resample.c
+++ /dev/null
@@ -1,369 +0,0 @@
-/*
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * sample format and channel layout conversion audio filter
- */
-
-#include "libavutil/avassert.h"
-#include "libavutil/avstring.h"
-#include "libavutil/common.h"
-#include "libavutil/dict.h"
-#include "libavutil/mathematics.h"
-#include "libavutil/opt.h"
-
-#include "libavresample/avresample.h"
-
-#include "audio.h"
-#include "avfilter.h"
-#include "formats.h"
-#include "internal.h"
-
-typedef struct ResampleContext {
-    const AVClass *class;
-    AVAudioResampleContext *avr;
-    AVDictionary *options;
-
-    int resampling;
-    int64_t next_pts;
-    int64_t next_in_pts;
-
-    /* set by filter_frame() to signal an output frame to request_frame() */
-    int got_output;
-} ResampleContext;
-
-static av_cold int init(AVFilterContext *ctx, AVDictionary **opts)
-{
-    ResampleContext *s = ctx->priv;
-    const AVClass *avr_class = avresample_get_class();
-    AVDictionaryEntry *e = NULL;
-
-    while ((e = av_dict_get(*opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
-        if (av_opt_find(&avr_class, e->key, NULL, 0,
-                        AV_OPT_SEARCH_FAKE_OBJ | AV_OPT_SEARCH_CHILDREN))
-            av_dict_set(&s->options, e->key, e->value, 0);
-    }
-
-    e = NULL;
-    while ((e = av_dict_get(s->options, "", e, AV_DICT_IGNORE_SUFFIX)))
-        av_dict_set(opts, e->key, NULL, 0);
-
-    /* do not allow the user to override basic format options */
-    av_dict_set(&s->options,  "in_channel_layout", NULL, 0);
-    av_dict_set(&s->options, "out_channel_layout", NULL, 0);
-    av_dict_set(&s->options,  "in_sample_fmt",     NULL, 0);
-    av_dict_set(&s->options, "out_sample_fmt",     NULL, 0);
-    av_dict_set(&s->options,  "in_sample_rate",    NULL, 0);
-    av_dict_set(&s->options, "out_sample_rate",    NULL, 0);
-
-    return 0;
-}
-
-static av_cold void uninit(AVFilterContext *ctx)
-{
-    ResampleContext *s = ctx->priv;
-
-    if (s->avr) {
-        avresample_close(s->avr);
-        avresample_free(&s->avr);
-    }
-    av_dict_free(&s->options);
-}
-
-static int query_formats(AVFilterContext *ctx)
-{
-    AVFilterLink *inlink  = ctx->inputs[0];
-    AVFilterLink *outlink = ctx->outputs[0];
-    AVFilterFormats *in_formats, *out_formats, *in_samplerates, *out_samplerates;
-    AVFilterChannelLayouts *in_layouts, *out_layouts;
-    int ret;
-
-    if (!(in_formats      = ff_all_formats         (AVMEDIA_TYPE_AUDIO)) ||
-        !(out_formats     = ff_all_formats         (AVMEDIA_TYPE_AUDIO)) ||
-        !(in_samplerates  = ff_all_samplerates     (                  )) ||
-        !(out_samplerates = ff_all_samplerates     (                  )) ||
-        !(in_layouts      = ff_all_channel_layouts (                  )) ||
-        !(out_layouts     = ff_all_channel_layouts (                  )))
-        return AVERROR(ENOMEM);
-
-    if ((ret = ff_formats_ref         (in_formats,      &inlink->outcfg.formats        )) < 0 ||
-        (ret = ff_formats_ref         (out_formats,     &outlink->incfg.formats        )) < 0 ||
-        (ret = ff_formats_ref         (in_samplerates,  &inlink->outcfg.samplerates    )) < 0 ||
-        (ret = ff_formats_ref         (out_samplerates, &outlink->incfg.samplerates    )) < 0 ||
-        (ret = ff_channel_layouts_ref (in_layouts,      &inlink->outcfg.channel_layouts)) < 0 ||
-        (ret = ff_channel_layouts_ref (out_layouts,     &outlink->incfg.channel_layouts)) < 0)
-        return ret;
-
-    return 0;
-}
-
-static int config_output(AVFilterLink *outlink)
-{
-    AVFilterContext *ctx = outlink->src;
-    AVFilterLink *inlink = ctx->inputs[0];
-    ResampleContext   *s = ctx->priv;
-    char buf1[64], buf2[64];
-    int ret;
-
-    int64_t resampling_forced;
-
-    if (s->avr) {
-        avresample_close(s->avr);
-        avresample_free(&s->avr);
-    }
-
-    if (inlink->channel_layout == outlink->channel_layout &&
-        inlink->sample_rate    == outlink->sample_rate    &&
-        (inlink->format        == outlink->format ||
-        (av_get_channel_layout_nb_channels(inlink->channel_layout)  == 1 &&
-         av_get_channel_layout_nb_channels(outlink->channel_layout) == 1 &&
-         av_get_planar_sample_fmt(inlink->format) ==
-         av_get_planar_sample_fmt(outlink->format))))
-        return 0;
-
-    if (!(s->avr = avresample_alloc_context()))
-        return AVERROR(ENOMEM);
-
-    if (s->options) {
-        int ret;
-        AVDictionaryEntry *e = NULL;
-        while ((e = av_dict_get(s->options, "", e, AV_DICT_IGNORE_SUFFIX)))
-            av_log(ctx, AV_LOG_VERBOSE, "lavr option: %s=%s\n", e->key, e->value);
-
-        ret = av_opt_set_dict(s->avr, &s->options);
-        if (ret < 0)
-            return ret;
-    }
-
-    av_opt_set_int(s->avr,  "in_channel_layout", inlink ->channel_layout, 0);
-    av_opt_set_int(s->avr, "out_channel_layout", outlink->channel_layout, 0);
-    av_opt_set_int(s->avr,  "in_sample_fmt",     inlink ->format,         0);
-    av_opt_set_int(s->avr, "out_sample_fmt",     outlink->format,         0);
-    av_opt_set_int(s->avr,  "in_sample_rate",    inlink ->sample_rate,    0);
-    av_opt_set_int(s->avr, "out_sample_rate",    outlink->sample_rate,    0);
-
-    if ((ret = avresample_open(s->avr)) < 0)
-        return ret;
-
-    av_opt_get_int(s->avr, "force_resampling", 0, &resampling_forced);
-    s->resampling = resampling_forced || (inlink->sample_rate != outlink->sample_rate);
-
-    if (s->resampling) {
-        outlink->time_base = (AVRational){ 1, outlink->sample_rate };
-        s->next_pts        = AV_NOPTS_VALUE;
-        s->next_in_pts     = AV_NOPTS_VALUE;
-    } else
-        outlink->time_base = inlink->time_base;
-
-    av_get_channel_layout_string(buf1, sizeof(buf1),
-                                 -1, inlink ->channel_layout);
-    av_get_channel_layout_string(buf2, sizeof(buf2),
-                                 -1, outlink->channel_layout);
-    av_log(ctx, AV_LOG_VERBOSE,
-           "fmt:%s srate:%d cl:%s -> fmt:%s srate:%d cl:%s\n",
-           av_get_sample_fmt_name(inlink ->format), inlink ->sample_rate, buf1,
-           av_get_sample_fmt_name(outlink->format), outlink->sample_rate, buf2);
-
-    return 0;
-}
-
-static int request_frame(AVFilterLink *outlink)
-{
-    AVFilterContext *ctx = outlink->src;
-    ResampleContext   *s = ctx->priv;
-    int ret = 0;
-
-    s->got_output = 0;
-    while (ret >= 0 && !s->got_output)
-        ret = ff_request_frame(ctx->inputs[0]);
-
-    /* flush the lavr delay buffer */
-    if (ret == AVERROR_EOF && s->avr) {
-        AVFrame *frame;
-        int nb_samples = avresample_get_out_samples(s->avr, 0);
-
-        if (!nb_samples)
-            return ret;
-
-        frame = ff_get_audio_buffer(outlink, nb_samples);
-        if (!frame)
-            return AVERROR(ENOMEM);
-
-        ret = avresample_convert(s->avr, frame->extended_data,
-                                 frame->linesize[0], nb_samples,
-                                 NULL, 0, 0);
-        if (ret <= 0) {
-            av_frame_free(&frame);
-            return (ret == 0) ? AVERROR_EOF : ret;
-        }
-
-        frame->nb_samples = ret;
-        frame->pts = s->next_pts;
-        return ff_filter_frame(outlink, frame);
-    }
-    return ret;
-}
-
-static int filter_frame(AVFilterLink *inlink, AVFrame *in)
-{
-    AVFilterContext  *ctx = inlink->dst;
-    ResampleContext    *s = ctx->priv;
-    AVFilterLink *outlink = ctx->outputs[0];
-    int ret;
-
-    if (s->avr) {
-        AVFrame *out;
-        int delay, nb_samples;
-
-        /* maximum possible samples lavr can output */
-        delay      = avresample_get_delay(s->avr);
-        nb_samples = avresample_get_out_samples(s->avr, in->nb_samples);
-
-        out = ff_get_audio_buffer(outlink, nb_samples);
-        if (!out) {
-            ret = AVERROR(ENOMEM);
-            goto fail;
-        }
-
-        ret = avresample_convert(s->avr, out->extended_data, out->linesize[0],
-                                 nb_samples, in->extended_data, in->linesize[0],
-                                 in->nb_samples);
-        if (ret <= 0) {
-            av_frame_free(&out);
-            if (ret < 0)
-                goto fail;
-        }
-
-        av_assert0(!avresample_available(s->avr));
-
-        if (s->resampling && s->next_pts == AV_NOPTS_VALUE) {
-            if (in->pts == AV_NOPTS_VALUE) {
-                av_log(ctx, AV_LOG_WARNING, "First timestamp is missing, "
-                       "assuming 0.\n");
-                s->next_pts = 0;
-            } else
-                s->next_pts = av_rescale_q(in->pts, inlink->time_base,
-                                           outlink->time_base);
-        }
-
-        if (ret > 0) {
-            out->nb_samples = ret;
-
-            ret = av_frame_copy_props(out, in);
-            if (ret < 0) {
-                av_frame_free(&out);
-                goto fail;
-            }
-
-            if (s->resampling) {
-                out->sample_rate = outlink->sample_rate;
-                /* Only convert in->pts if there is a discontinuous jump.
-                   This ensures that out->pts tracks the number of samples actually
-                   output by the resampler in the absence of such a jump.
-                   Otherwise, the rounding in av_rescale_q() and av_rescale()
-                   causes off-by-1 errors. */
-                if (in->pts != AV_NOPTS_VALUE && in->pts != s->next_in_pts) {
-                    out->pts = av_rescale_q(in->pts, inlink->time_base,
-                                                outlink->time_base) -
-                                   av_rescale(delay, outlink->sample_rate,
-                                              inlink->sample_rate);
-                } else
-                    out->pts = s->next_pts;
-
-                s->next_pts = out->pts + out->nb_samples;
-                s->next_in_pts = in->pts + in->nb_samples;
-            } else
-                out->pts = in->pts;
-
-            ret = ff_filter_frame(outlink, out);
-            s->got_output = 1;
-        }
-
-fail:
-        av_frame_free(&in);
-    } else {
-        in->format = outlink->format;
-        ret = ff_filter_frame(outlink, in);
-        s->got_output = 1;
-    }
-
-    return ret;
-}
-
-#if FF_API_CHILD_CLASS_NEXT
-static const AVClass *resample_child_class_next(const AVClass *prev)
-{
-    return prev ? NULL : avresample_get_class();
-}
-#endif
-
-static const AVClass *resample_child_class_iterate(void **iter)
-{
-    const AVClass *c = *iter ? NULL : avresample_get_class();
-    *iter = (void*)(uintptr_t)c;
-    return c;
-}
-
-static void *resample_child_next(void *obj, void *prev)
-{
-    ResampleContext *s = obj;
-    return prev ? NULL : s->avr;
-}
-
-static const AVClass resample_class = {
-    .class_name       = "resample",
-    .item_name        = av_default_item_name,
-    .version          = LIBAVUTIL_VERSION_INT,
-#if FF_API_CHILD_CLASS_NEXT
-    .child_class_next = resample_child_class_next,
-#endif
-    .child_class_iterate = resample_child_class_iterate,
-    .child_next       = resample_child_next,
-};
-
-static const AVFilterPad avfilter_af_resample_inputs[] = {
-    {
-        .name          = "default",
-        .type          = AVMEDIA_TYPE_AUDIO,
-        .filter_frame  = filter_frame,
-    },
-    { NULL }
-};
-
-static const AVFilterPad avfilter_af_resample_outputs[] = {
-    {
-        .name          = "default",
-        .type          = AVMEDIA_TYPE_AUDIO,
-        .config_props  = config_output,
-        .request_frame = request_frame
-    },
-    { NULL }
-};
-
-AVFilter ff_af_resample = {
-    .name          = "resample",
-    .description   = NULL_IF_CONFIG_SMALL("Audio resampling and conversion."),
-    .priv_size     = sizeof(ResampleContext),
-    .priv_class    = &resample_class,
-    .init_dict     = init,
-    .uninit        = uninit,
-    .query_formats = query_formats,
-    .inputs        = avfilter_af_resample_inputs,
-    .outputs       = avfilter_af_resample_outputs,
-};
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index 7dbd1fb1dd..19c2acb63c 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -129,7 +129,6 @@ extern AVFilter ff_af_lv2;
 extern AVFilter ff_af_mcompand;
 extern AVFilter ff_af_pan;
 extern AVFilter ff_af_replaygain;
-extern AVFilter ff_af_resample;
 extern AVFilter ff_af_rubberband;
 extern AVFilter ff_af_sidechaincompress;
 extern AVFilter ff_af_sidechaingate;