chasing indexing error

1 files changed, 0 insertions, 181 deletions

diff --git a/ffmpeg/libavcodec/ws-snd1.c b/ffmpeg/libavcodec/ws-snd1.c
deleted file mode 100644
index 6929cbf..0000000
--- a/ffmpeg/libavcodec/ws-snd1.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * Westwood SNDx codecs
- * Copyright (c) 2005 Konstantin Shishkov
- *
- * 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 <stdint.h>
-
-#include "libavutil/channel_layout.h"
-#include "libavutil/common.h"
-#include "libavutil/intreadwrite.h"
-#include "avcodec.h"
-#include "internal.h"
-
-/**
- * @file
- * Westwood SNDx codecs
- *
- * Reference documents about VQA format and its audio codecs
- * can be found here:
- * http://www.multimedia.cx
- */
-
-static const int8_t ws_adpcm_4bit[] = {
-    -9, -8, -6, -5, -4, -3, -2, -1,
-     0,  1,  2,  3,  4,  5,  6,  8
-};
-
-static av_cold int ws_snd_decode_init(AVCodecContext *avctx)
-{
-    avctx->channels       = 1;
-    avctx->channel_layout = AV_CH_LAYOUT_MONO;
-    avctx->sample_fmt     = AV_SAMPLE_FMT_U8;
-
-    return 0;
-}
-
-static int ws_snd_decode_frame(AVCodecContext *avctx, void *data,
-                               int *got_frame_ptr, AVPacket *avpkt)
-{
-    AVFrame *frame     = data;
-    const uint8_t *buf = avpkt->data;
-    int buf_size       = avpkt->size;
-
-    int in_size, out_size, ret;
-    int sample = 128;
-    uint8_t *samples;
-    uint8_t *samples_end;
-
-    if (!buf_size)
-        return 0;
-
-    if (buf_size < 4) {
-        av_log(avctx, AV_LOG_ERROR, "packet is too small\n");
-        return AVERROR(EINVAL);
-    }
-
-    out_size = AV_RL16(&buf[0]);
-    in_size  = AV_RL16(&buf[2]);
-    buf += 4;
-
-    if (in_size > buf_size) {
-        av_log(avctx, AV_LOG_ERROR, "Frame data is larger than input buffer\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    /* get output buffer */
-    frame->nb_samples = out_size;
-    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
-        return ret;
-    samples     = frame->data[0];
-    samples_end = samples + out_size;
-
-    if (in_size == out_size) {
-        memcpy(samples, buf, out_size);
-        *got_frame_ptr = 1;
-        return buf_size;
-    }
-
-    while (samples < samples_end && buf - avpkt->data < buf_size) {
-        int code, smp, size;
-        uint8_t count;
-        code  = *buf >> 6;
-        count = *buf & 0x3F;
-        buf++;
-
-        /* make sure we don't write past the output buffer */
-        switch (code) {
-        case 0:  smp = 4 * (count + 1);                break;
-        case 1:  smp = 2 * (count + 1);                break;
-        case 2:  smp = (count & 0x20) ? 1 : count + 1; break;
-        default: smp = count + 1;                      break;
-        }
-        if (samples_end - samples < smp)
-            break;
-
-        /* make sure we don't read past the input buffer */
-        size = ((code == 2 && (count & 0x20)) || code == 3) ? 0 : count + 1;
-        if ((buf - avpkt->data) + size > buf_size)
-            break;
-
-        switch (code) {
-        case 0: /* ADPCM 2-bit */
-            for (count++; count > 0; count--) {
-                code = *buf++;
-                sample += ( code       & 0x3) - 2;
-                sample = av_clip_uint8(sample);
-                *samples++ = sample;
-                sample += ((code >> 2) & 0x3) - 2;
-                sample = av_clip_uint8(sample);
-                *samples++ = sample;
-                sample += ((code >> 4) & 0x3) - 2;
-                sample = av_clip_uint8(sample);
-                *samples++ = sample;
-                sample +=  (code >> 6)        - 2;
-                sample = av_clip_uint8(sample);
-                *samples++ = sample;
-            }
-            break;
-        case 1: /* ADPCM 4-bit */
-            for (count++; count > 0; count--) {
-                code = *buf++;
-                sample += ws_adpcm_4bit[code & 0xF];
-                sample = av_clip_uint8(sample);
-                *samples++ = sample;
-                sample += ws_adpcm_4bit[code >> 4];
-                sample = av_clip_uint8(sample);
-                *samples++ = sample;
-            }
-            break;
-        case 2: /* no compression */
-            if (count & 0x20) { /* big delta */
-                int8_t t;
-                t = count;
-                t <<= 3;
-                sample += t >> 3;
-                sample = av_clip_uint8(sample);
-                *samples++ = sample;
-            } else { /* copy */
-                memcpy(samples, buf, smp);
-                samples += smp;
-                buf     += smp;
-                sample = buf[-1];
-            }
-            break;
-        default: /* run */
-            memset(samples, sample, smp);
-            samples += smp;
-        }
-    }
-
-    frame->nb_samples = samples - frame->data[0];
-    *got_frame_ptr    = 1;
-
-    return buf_size;
-}
-
-AVCodec ff_ws_snd1_decoder = {
-    .name           = "ws_snd1",
-    .long_name      = NULL_IF_CONFIG_SMALL("Westwood Audio (SND1)"),
-    .type           = AVMEDIA_TYPE_AUDIO,
-    .id             = AV_CODEC_ID_WESTWOOD_SND1,
-    .init           = ws_snd_decode_init,
-    .decode         = ws_snd_decode_frame,
-    .capabilities   = CODEC_CAP_DR1,
-};