1 files changed, 0 insertions, 413 deletions

diff --git a/audio/filter/af_lavfi.c b/audio/filter/af_lavfi.c
deleted file mode 100644
index ab8a026de7..0000000000
--- a/audio/filter/af_lavfi.c
+++ /dev/null
@@ -1,413 +0,0 @@
-/*
- * This file is part of mpv.
- *
- * Filter graph creation code taken from FFmpeg ffplay.c (LGPL 2.1 or later)
- *
- * mpv 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.
- *
- * mpv 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 mpv.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdlib.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <assert.h>
-
-#include <libavutil/avstring.h>
-#include <libavutil/mem.h>
-#include <libavutil/mathematics.h>
-#include <libavutil/rational.h>
-#include <libavutil/samplefmt.h>
-#include <libavutil/time.h>
-#include <libavutil/opt.h>
-#include <libavfilter/avfilter.h>
-#include <libavfilter/buffersink.h>
-#include <libavfilter/buffersrc.h>
-
-#include "config.h"
-
-#include "audio/format.h"
-#include "audio/fmt-conversion.h"
-#include "af.h"
-
-#include "common/av_common.h"
-#include "common/tags.h"
-
-#include "options/m_option.h"
-
-// FFmpeg and Libav have slightly different APIs, just enough to cause us
-// unnecessary pain. <Expletive deleted.>
-#if LIBAVFILTER_VERSION_MICRO < 100
-#define graph_parse(graph, filters, inputs, outputs, log_ctx) \
-    avfilter_graph_parse(graph, filters, inputs, outputs, log_ctx)
-#define avfilter_graph_send_command(a, b, c, d, e, f, g) -1
-#else
-#define graph_parse(graph, filters, inputs, outputs, log_ctx) \
-    avfilter_graph_parse_ptr(graph, filters, &(inputs), &(outputs), log_ctx)
-#endif
-
-struct priv {
-    // Single filter bridge, instead of a graph.
-    bool is_bridge;
-
-    AVFilterGraph *graph;
-    AVFilterContext *in;
-    AVFilterContext *out;
-
-    int64_t samples_in;
-
-    AVRational timebase_out;
-
-    bool eof;
-
-    struct mp_tags *metadata;
-
-    // options
-    char *cfg_graph;
-    char **cfg_avopts;
-    char *cfg_filter_name;
-    char **cfg_filter_opts;
-};
-
-static void destroy_graph(struct af_instance *af)
-{
-    struct priv *p = af->priv;
-    avfilter_graph_free(&p->graph);
-    p->in = p->out = NULL;
-    p->samples_in = 0;
-    p->eof = false;
-}
-
-static bool recreate_graph(struct af_instance *af, struct mp_audio *config)
-{
-    void *tmp = talloc_new(NULL);
-    struct priv *p = af->priv;
-    AVFilterContext *in = NULL, *out = NULL;
-    bool ok = false;
-
-    if (!p->is_bridge && bstr0(p->cfg_graph).len == 0) {
-        MP_FATAL(af, "lavfi: no filter graph set\n");
-        return false;
-    }
-
-    destroy_graph(af);
-
-    AVFilterGraph *graph = avfilter_graph_alloc();
-    if (!graph)
-        goto error;
-
-    if (mp_set_avopts(af->log, graph, p->cfg_avopts) < 0)
-        goto error;
-
-    AVFilterInOut *outputs = avfilter_inout_alloc();
-    AVFilterInOut *inputs  = avfilter_inout_alloc();
-    if (!outputs || !inputs)
-        goto error;
-
-    char *src_args = talloc_asprintf(tmp,
-        "sample_rate=%d:sample_fmt=%s:time_base=%d/%d:"
-        "channel_layout=0x%"PRIx64,  config->rate,
-        av_get_sample_fmt_name(af_to_avformat(config->format)),
-        1, config->rate, mp_chmap_to_lavc(&config->channels));
-
-    if (avfilter_graph_create_filter(&in, avfilter_get_by_name("abuffer"),
-                                     "src", src_args, NULL, graph) < 0)
-        goto error;
-
-    if (avfilter_graph_create_filter(&out, avfilter_get_by_name("abuffersink"),
-                                     "out", NULL, NULL, graph) < 0)
-        goto error;
-
-    if (p->is_bridge) {
-        AVFilterContext *filter = avfilter_graph_alloc_filter(graph,
-                        avfilter_get_by_name(p->cfg_filter_name), "filter");
-        if (!filter)
-            goto error;
-
-        if (mp_set_avopts(af->log, filter->priv, p->cfg_filter_opts) < 0)
-            goto error;
-
-        if (avfilter_init_str(filter, NULL) < 0)
-            goto error;
-
-        // Yep, we have to manually link those filters.
-        if (filter->nb_inputs != 1 ||
-            avfilter_pad_get_type(filter->input_pads, 0) != AVMEDIA_TYPE_AUDIO ||
-            filter->nb_outputs != 1 ||
-            avfilter_pad_get_type(filter->output_pads, 0) != AVMEDIA_TYPE_AUDIO)
-        {
-            MP_ERR(af, "The filter is required to have 1 audio input pad and "
-                       "1 audio output pad.\n");
-            goto error;
-        }
-        if (avfilter_link(in, 0, filter, 0) < 0 ||
-            avfilter_link(filter, 0, out, 0) < 0)
-        {
-            MP_ERR(af, "Failed to link filter.\n");
-            goto error;
-        }
-    } else {
-        MP_VERBOSE(af, "lavfi: create graph: '%s'\n", p->cfg_graph);
-
-        outputs->name = av_strdup("in");
-        outputs->filter_ctx = in;
-
-        inputs->name = av_strdup("out");
-        inputs->filter_ctx = out;
-
-        if (graph_parse(graph, p->cfg_graph, inputs, outputs, NULL) < 0)
-            goto error;
-    }
-
-    if (avfilter_graph_config(graph, NULL) < 0)
-        goto error;
-
-    p->in = in;
-    p->out = out;
-    p->graph = graph;
-
-    assert(out->nb_inputs == 1);
-    assert(in->nb_outputs == 1);
-
-    ok = true;
-error:
-
-    if (!ok) {
-        MP_FATAL(af, "Can't configure libavfilter graph.\n");
-        avfilter_graph_free(&graph);
-    }
-    avfilter_inout_free(&inputs);
-    avfilter_inout_free(&outputs);
-    talloc_free(tmp);
-    return ok;
-}
-
-static void reset(struct af_instance *af)
-{
-    if (!recreate_graph(af, &af->fmt_in))
-        MP_FATAL(af, "Can't recreate libavfilter filter after a seek reset.\n");
-}
-
-static int control(struct af_instance *af, int cmd, void *arg)
-{
-    struct priv *p = af->priv;
-
-    switch (cmd) {
-    case AF_CONTROL_REINIT: {
-        struct mp_audio *in = arg;
-        struct mp_audio orig_in = *in;
-        struct mp_audio *out = af->data;
-
-        if (af_to_avformat(in->format) == AV_SAMPLE_FMT_NONE)
-            mp_audio_set_format(in, AF_FORMAT_FLOAT);
-
-        // Removing this requires fixing AVFrame.data vs. AVFrame.extended_data
-        if (in->channels.num > AV_NUM_DATA_POINTERS)
-            return AF_ERROR;
-
-        if (!mp_chmap_is_lavc(&in->channels))
-            mp_chmap_reorder_to_lavc(&in->channels); // will always work
-
-        if (!recreate_graph(af, in))
-            return AF_ERROR;
-
-        AVFilterLink *l_out = p->out->inputs[0];
-
-        out->rate = l_out->sample_rate;
-
-        mp_audio_set_format(out, af_from_avformat(l_out->format));
-
-        struct mp_chmap out_cm;
-        mp_chmap_from_lavc(&out_cm, l_out->channel_layout);
-        mp_audio_set_channels(out, &out_cm);
-
-        if (!mp_audio_config_valid(out) || out->channels.num > AV_NUM_DATA_POINTERS)
-            return AF_ERROR;
-
-        p->timebase_out = l_out->time_base;
-
-        return mp_audio_config_equals(in, &orig_in) ? AF_OK : AF_FALSE;
-    }
-    case AF_CONTROL_COMMAND: {
-        if (!p->graph)
-            break;
-        char **args = arg;
-        return avfilter_graph_send_command(p->graph, "all",
-                                           args[0], args[1], &(char){0}, 0, 0)
-                >= 0 ? CONTROL_OK : CONTROL_ERROR;
-    }
-    case AF_CONTROL_GET_METADATA:
-        if (p->metadata) {
-            *(struct mp_tags *)arg = *p->metadata;
-            return CONTROL_OK;
-        }
-        return CONTROL_NA;
-    case AF_CONTROL_RESET:
-        reset(af);
-        return AF_OK;
-    }
-    return AF_UNKNOWN;
-}
-
-static void get_metadata_from_av_frame(struct af_instance *af, AVFrame *frame)
-{
-#if LIBAVUTIL_VERSION_MICRO >= 100
-    struct priv *p = af->priv;
-    if (!p->metadata)
-        p->metadata = talloc_zero(p, struct mp_tags);
-
-    mp_tags_copy_from_av_dictionary(p->metadata, frame->metadata);
-#endif
-}
-
-static int filter_frame(struct af_instance *af, struct mp_audio *data)
-{
-    struct priv *p = af->priv;
-    AVFrame *frame = NULL;
-
-    if (p->eof && data)
-        reset(af);
-
-    if (!p->graph)
-        goto error;
-
-    if (!data) {
-        if (p->eof)
-            return 0;
-        p->eof = true;
-    }
-
-    if (data) {
-        frame = mp_audio_to_avframe_and_unref(data);
-        data = NULL;
-        if (!frame)
-            goto error;
-
-        // Timebase is 1/sample_rate
-        frame->pts = p->samples_in;
-        p->samples_in += frame->nb_samples;
-    }
-
-    if (av_buffersrc_add_frame(p->in, frame) < 0)
-        goto error;
-
-    av_frame_free(&frame);
-    talloc_free(data);
-    return 0;
-error:
-    av_frame_free(&frame);
-    talloc_free(data);
-    return -1;
-}
-
-static int filter_out(struct af_instance *af)
-{
-    struct priv *p = af->priv;
-
-    if (!p->graph)
-        goto error;
-
-    AVFrame *frame = av_frame_alloc();
-    if (!frame)
-        goto error;
-
-    int err = av_buffersink_get_frame(p->out, frame);
-    if (err == AVERROR(EAGAIN) || err == AVERROR_EOF) {
-        // Not an error situation - no more output buffers in queue.
-        // AVERROR_EOF means we shouldn't even give the filter more
-        // input, but we don't handle that completely correctly.
-        av_frame_free(&frame);
-        p->eof |= err == AVERROR_EOF;
-        return 0;
-    }
-
-    struct mp_audio *out = mp_audio_from_avframe(frame);
-    if (!out)
-        goto error;
-
-    mp_audio_copy_config(out, af->data);
-
-    if (frame->pts != AV_NOPTS_VALUE) {
-        double in_time = p->samples_in / (double)af->fmt_in.rate;
-        double out_time = frame->pts * av_q2d(p->timebase_out);
-        // Need pts past the last output sample.
-        out_time += out->samples / (double)out->rate;
-
-        af->delay = in_time - out_time;
-    }
-
-    get_metadata_from_av_frame(af, frame);
-    af_add_output_frame(af, out);
-    av_frame_free(&frame);
-    return 0;
-error:
-    av_frame_free(&frame);
-    return -1;
-}
-
-static void uninit(struct af_instance *af)
-{
-    destroy_graph(af);
-}
-
-static int af_open(struct af_instance *af)
-{
-    struct priv *p = af->priv;
-
-    af->control = control;
-    af->uninit = uninit;
-    af->filter_frame = filter_frame;
-    af->filter_out = filter_out;
-
-    if (p->is_bridge) {
-        if (!p->cfg_filter_name) {
-            MP_ERR(af, "Filter name not set!\n");
-            return 0;
-        }
-        if (!avfilter_get_by_name(p->cfg_filter_name)) {
-            MP_ERR(af, "libavfilter filter '%s' not found!\n", p->cfg_filter_name);
-            return 0;
-        }
-    }
-    return AF_OK;
-}
-
-#define OPT_BASE_STRUCT struct priv
-
-const struct af_info af_info_lavfi = {
-    .info = "libavfilter bridge",
-    .name = "lavfi",
-    .open = af_open,
-    .priv_size = sizeof(struct priv),
-    .options = (const struct m_option[]) {
-        OPT_STRING("graph", cfg_graph, 0),
-        OPT_KEYVALUELIST("o", cfg_avopts, 0),
-        {0}
-    },
-};
-
-const struct af_info af_info_lavfi_bridge = {
-    .info = "libavfilter bridge (explicit options)",
-    .name = "lavfi-bridge",
-    .open = af_open,
-    .priv_size = sizeof(struct priv),
-    .priv_defaults = &(const struct priv){
-        .is_bridge = true,
-    },
-    .options = (const struct m_option[]) {
-        OPT_STRING("name", cfg_filter_name, M_OPT_MIN, .min = 1),
-        OPT_KEYVALUELIST("opts", cfg_filter_opts, 0),
-        OPT_STRING("graph", cfg_graph, 0),
-        OPT_KEYVALUELIST("o", cfg_avopts, 0),
-        {0}
-    },
-};