making act segmenter

1 files changed, 0 insertions, 198 deletions

diff --git a/ffmpeg1/libavcodec/libopusdec.c b/ffmpeg1/libavcodec/libopusdec.c
deleted file mode 100644
index 9b5cfe7..0000000
--- a/ffmpeg1/libavcodec/libopusdec.c
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * Opus decoder using libopus
- * Copyright (c) 2012 Nicolas George
- *
- * 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
- */
-
-#include <opus.h>
-#include <opus_multistream.h>
-
-#include "libavutil/avassert.h"
-#include "libavutil/intreadwrite.h"
-#include "avcodec.h"
-#include "internal.h"
-#include "vorbis.h"
-#include "mathops.h"
-#include "libopus.h"
-
-struct libopus_context {
-    OpusMSDecoder *dec;
-    int pre_skip;
-#ifndef OPUS_SET_GAIN
-    union { int i; double d; } gain;
-#endif
-};
-
-#define OPUS_HEAD_SIZE 19
-
-static av_cold int libopus_decode_init(AVCodecContext *avc)
-{
-    struct libopus_context *opus = avc->priv_data;
-    int ret, channel_map = 0, gain_db = 0, nb_streams, nb_coupled;
-    uint8_t mapping_arr[8] = { 0, 1 }, *mapping;
-
-    avc->sample_rate    = 48000;
-    avc->sample_fmt     = avc->request_sample_fmt == AV_SAMPLE_FMT_FLT ?
-                          AV_SAMPLE_FMT_FLT : AV_SAMPLE_FMT_S16;
-    avc->channel_layout = avc->channels > 8 ? 0 :
-                          ff_vorbis_channel_layouts[avc->channels - 1];
-
-    if (avc->extradata_size >= OPUS_HEAD_SIZE) {
-        opus->pre_skip = AV_RL16(avc->extradata + 10);
-        gain_db     = sign_extend(AV_RL16(avc->extradata + 16), 16);
-        channel_map = AV_RL8 (avc->extradata + 18);
-    }
-    if (avc->extradata_size >= OPUS_HEAD_SIZE + 2 + avc->channels) {
-        nb_streams = avc->extradata[OPUS_HEAD_SIZE + 0];
-        nb_coupled = avc->extradata[OPUS_HEAD_SIZE + 1];
-        if (nb_streams + nb_coupled != avc->channels)
-            av_log(avc, AV_LOG_WARNING, "Inconsistent channel mapping.\n");
-        mapping = avc->extradata + OPUS_HEAD_SIZE + 2;
-    } else {
-        if (avc->channels > 2 || channel_map) {
-            av_log(avc, AV_LOG_ERROR,
-                   "No channel mapping for %d channels.\n", avc->channels);
-            return AVERROR(EINVAL);
-        }
-        nb_streams = 1;
-        nb_coupled = avc->channels > 1;
-        mapping    = mapping_arr;
-    }
-
-    if (avc->channels > 2 && avc->channels <= 8) {
-        const uint8_t *vorbis_offset = ff_vorbis_channel_layout_offsets[avc->channels - 1];
-        int ch;
-
-        /* Remap channels from vorbis order to ffmpeg order */
-        for (ch = 0; ch < avc->channels; ch++)
-            mapping_arr[ch] = mapping[vorbis_offset[ch]];
-        mapping = mapping_arr;
-    }
-
-    opus->dec = opus_multistream_decoder_create(avc->sample_rate, avc->channels,
-                                                nb_streams, nb_coupled,
-                                                mapping, &ret);
-    if (!opus->dec) {
-        av_log(avc, AV_LOG_ERROR, "Unable to create decoder: %s\n",
-               opus_strerror(ret));
-        return ff_opus_error_to_averror(ret);
-    }
-
-#ifdef OPUS_SET_GAIN
-    ret = opus_multistream_decoder_ctl(opus->dec, OPUS_SET_GAIN(gain_db));
-    if (ret != OPUS_OK)
-        av_log(avc, AV_LOG_WARNING, "Failed to set gain: %s\n",
-               opus_strerror(ret));
-#else
-    {
-        double gain_lin = pow(10, gain_db / (20.0 * 256));
-        if (avc->sample_fmt == AV_SAMPLE_FMT_FLT)
-            opus->gain.d = gain_lin;
-        else
-            opus->gain.i = FFMIN(gain_lin * 65536, INT_MAX);
-    }
-#endif
-
-    avc->internal->skip_samples = opus->pre_skip;
-    avc->delay = 3840;  /* Decoder delay (in samples) at 48kHz */
-
-    return 0;
-}
-
-static av_cold int libopus_decode_close(AVCodecContext *avc)
-{
-    struct libopus_context *opus = avc->priv_data;
-
-    opus_multistream_decoder_destroy(opus->dec);
-    return 0;
-}
-
-#define MAX_FRAME_SIZE (960 * 6)
-
-static int libopus_decode(AVCodecContext *avc, void *data,
-                          int *got_frame_ptr, AVPacket *pkt)
-{
-    struct libopus_context *opus = avc->priv_data;
-    AVFrame *frame               = data;
-    int ret, nb_samples;
-
-    frame->nb_samples = MAX_FRAME_SIZE;
-    if ((ret = ff_get_buffer(avc, frame, 0)) < 0)
-        return ret;
-
-    if (avc->sample_fmt == AV_SAMPLE_FMT_S16)
-        nb_samples = opus_multistream_decode(opus->dec, pkt->data, pkt->size,
-                                             (opus_int16 *)frame->data[0],
-                                             frame->nb_samples, 0);
-    else
-        nb_samples = opus_multistream_decode_float(opus->dec, pkt->data, pkt->size,
-                                                   (float *)frame->data[0],
-                                                   frame->nb_samples, 0);
-
-    if (nb_samples < 0) {
-        av_log(avc, AV_LOG_ERROR, "Decoding error: %s\n",
-               opus_strerror(nb_samples));
-        return ff_opus_error_to_averror(nb_samples);
-    }
-
-#ifndef OPUS_SET_GAIN
-    {
-        int i = avc->channels * nb_samples;
-        if (avc->sample_fmt == AV_SAMPLE_FMT_FLT) {
-            float *pcm = (float *)frame->data[0];
-            for (; i > 0; i--, pcm++)
-                *pcm = av_clipf(*pcm * opus->gain.d, -1, 1);
-        } else {
-            int16_t *pcm = (int16_t *)frame->data[0];
-            for (; i > 0; i--, pcm++)
-                *pcm = av_clip_int16(((int64_t)opus->gain.i * *pcm) >> 16);
-        }
-    }
-#endif
-
-    frame->nb_samples = nb_samples;
-    *got_frame_ptr    = 1;
-
-    return pkt->size;
-}
-
-static void libopus_flush(AVCodecContext *avc)
-{
-    struct libopus_context *opus = avc->priv_data;
-
-    opus_multistream_decoder_ctl(opus->dec, OPUS_RESET_STATE);
-    /* The stream can have been extracted by a tool that is not Opus-aware.
-       Therefore, any packet can become the first of the stream. */
-    avc->internal->skip_samples = opus->pre_skip;
-}
-
-AVCodec ff_libopus_decoder = {
-    .name           = "libopus",
-    .type           = AVMEDIA_TYPE_AUDIO,
-    .id             = AV_CODEC_ID_OPUS,
-    .priv_data_size = sizeof(struct libopus_context),
-    .init           = libopus_decode_init,
-    .close          = libopus_decode_close,
-    .decode         = libopus_decode,
-    .flush          = libopus_flush,
-    .capabilities   = CODEC_CAP_DR1,
-    .long_name      = NULL_IF_CONFIG_SMALL("libopus Opus"),
-    .sample_fmts    = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_FLT,
-                                                     AV_SAMPLE_FMT_S16,
-                                                     AV_SAMPLE_FMT_NONE },
-};