chasing indexing error

1 files changed, 0 insertions, 298 deletions

diff --git a/ffmpeg/libavformat/vqf.c b/ffmpeg/libavformat/vqf.c
deleted file mode 100644
index 526b596..0000000
--- a/ffmpeg/libavformat/vqf.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- * VQF demuxer
- * Copyright (c) 2009 Vitor Sessak
- *
- * 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 "avformat.h"
-#include "internal.h"
-#include "libavutil/intreadwrite.h"
-#include "libavutil/dict.h"
-#include "libavutil/mathematics.h"
-#include "riff.h"
-
-typedef struct VqfContext {
-    int frame_bit_len;
-    uint8_t last_frame_bits;
-    int remaining_bits;
-} VqfContext;
-
-static int vqf_probe(AVProbeData *probe_packet)
-{
-    if (AV_RL32(probe_packet->buf) != MKTAG('T','W','I','N'))
-        return 0;
-
-    if (!memcmp(probe_packet->buf + 4, "97012000", 8))
-        return AVPROBE_SCORE_MAX;
-
-    if (!memcmp(probe_packet->buf + 4, "00052200", 8))
-        return AVPROBE_SCORE_MAX;
-
-    if (AV_RL32(probe_packet->buf + 12) > (1<<27))
-        return AVPROBE_SCORE_EXTENSION/2;
-
-    return AVPROBE_SCORE_EXTENSION;
-}
-
-static void add_metadata(AVFormatContext *s, uint32_t tag,
-                         unsigned int tag_len, unsigned int remaining)
-{
-    int len = FFMIN(tag_len, remaining);
-    char *buf, key[5] = {0};
-
-    if (len == UINT_MAX)
-        return;
-
-    buf = av_malloc(len+1);
-    if (!buf)
-        return;
-    avio_read(s->pb, buf, len);
-    buf[len] = 0;
-    AV_WL32(key, tag);
-    av_dict_set(&s->metadata, key, buf, AV_DICT_DONT_STRDUP_VAL);
-}
-
-static const AVMetadataConv vqf_metadata_conv[] = {
-    { "(c) ", "copyright" },
-    { "ARNG", "arranger"  },
-    { "AUTH", "author"    },
-    { "BAND", "band"      },
-    { "CDCT", "conductor" },
-    { "COMT", "comment"   },
-    { "FILE", "filename"  },
-    { "GENR", "genre"     },
-    { "LABL", "publisher" },
-    { "MUSC", "composer"  },
-    { "NAME", "title"     },
-    { "NOTE", "note"      },
-    { "PROD", "producer"  },
-    { "PRSN", "personnel" },
-    { "REMX", "remixer"   },
-    { "SING", "singer"    },
-    { "TRCK", "track"     },
-    { "WORD", "words"     },
-    { 0 },
-};
-
-static int vqf_read_header(AVFormatContext *s)
-{
-    VqfContext *c = s->priv_data;
-    AVStream *st  = avformat_new_stream(s, NULL);
-    int chunk_tag;
-    int rate_flag = -1;
-    int header_size;
-    int read_bitrate = 0;
-    int size;
-    uint8_t comm_chunk[12];
-
-    if (!st)
-        return AVERROR(ENOMEM);
-
-    avio_skip(s->pb, 12);
-
-    header_size = avio_rb32(s->pb);
-
-    st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
-    st->codec->codec_id   = AV_CODEC_ID_TWINVQ;
-    st->start_time = 0;
-
-    do {
-        int len;
-        chunk_tag = avio_rl32(s->pb);
-
-        if (chunk_tag == MKTAG('D','A','T','A'))
-            break;
-
-        len = avio_rb32(s->pb);
-
-        if ((unsigned) len > INT_MAX/2) {
-            av_log(s, AV_LOG_ERROR, "Malformed header\n");
-            return -1;
-        }
-
-        header_size -= 8;
-
-        switch(chunk_tag){
-        case MKTAG('C','O','M','M'):
-            avio_read(s->pb, comm_chunk, 12);
-            st->codec->channels = AV_RB32(comm_chunk    ) + 1;
-            read_bitrate        = AV_RB32(comm_chunk + 4);
-            rate_flag           = AV_RB32(comm_chunk + 8);
-            avio_skip(s->pb, len-12);
-
-            if (st->codec->channels <= 0) {
-                av_log(s, AV_LOG_ERROR, "Invalid number of channels\n");
-                return AVERROR_INVALIDDATA;
-            }
-
-            st->codec->bit_rate              = read_bitrate*1000;
-            break;
-        case MKTAG('D','S','I','Z'): // size of compressed data
-        {
-            char buf[8] = {0};
-            int size = avio_rb32(s->pb);
-
-            snprintf(buf, sizeof(buf), "%d", size);
-            av_dict_set(&s->metadata, "size", buf, 0);
-        }
-            break;
-        case MKTAG('Y','E','A','R'): // recording date
-        case MKTAG('E','N','C','D'): // compression date
-        case MKTAG('E','X','T','R'): // reserved
-        case MKTAG('_','Y','M','H'): // reserved
-        case MKTAG('_','N','T','T'): // reserved
-        case MKTAG('_','I','D','3'): // reserved for ID3 tags
-            avio_skip(s->pb, FFMIN(len, header_size));
-            break;
-        default:
-            add_metadata(s, chunk_tag, len, header_size);
-            break;
-        }
-
-        header_size -= len;
-
-    } while (header_size >= 0 && !url_feof(s->pb));
-
-    switch (rate_flag) {
-    case -1:
-        av_log(s, AV_LOG_ERROR, "COMM tag not found!\n");
-        return -1;
-    case 44:
-        st->codec->sample_rate = 44100;
-        break;
-    case 22:
-        st->codec->sample_rate = 22050;
-        break;
-    case 11:
-        st->codec->sample_rate = 11025;
-        break;
-    default:
-        if (rate_flag < 8 || rate_flag > 44) {
-            av_log(s, AV_LOG_ERROR, "Invalid rate flag %d\n", rate_flag);
-            return AVERROR_INVALIDDATA;
-        }
-        st->codec->sample_rate = rate_flag*1000;
-        break;
-    }
-
-    if (read_bitrate / st->codec->channels <  8 ||
-        read_bitrate / st->codec->channels > 48) {
-        av_log(s, AV_LOG_ERROR, "Invalid bitrate per channel %d\n",
-               read_bitrate / st->codec->channels);
-        return AVERROR_INVALIDDATA;
-    }
-
-    switch (((st->codec->sample_rate/1000) << 8) +
-            read_bitrate/st->codec->channels) {
-    case (11<<8) + 8 :
-    case (8 <<8) + 8 :
-    case (11<<8) + 10:
-    case (22<<8) + 32:
-        size = 512;
-        break;
-    case (16<<8) + 16:
-    case (22<<8) + 20:
-    case (22<<8) + 24:
-        size = 1024;
-        break;
-    case (44<<8) + 40:
-    case (44<<8) + 48:
-        size = 2048;
-        break;
-    default:
-        av_log(s, AV_LOG_ERROR, "Mode not suported: %d Hz, %d kb/s.\n",
-               st->codec->sample_rate, st->codec->bit_rate);
-        return -1;
-    }
-    c->frame_bit_len = st->codec->bit_rate*size/st->codec->sample_rate;
-    avpriv_set_pts_info(st, 64, size, st->codec->sample_rate);
-
-    /* put first 12 bytes of COMM chunk in extradata */
-    if (ff_alloc_extradata(st->codec, 12))
-        return AVERROR(ENOMEM);
-    memcpy(st->codec->extradata, comm_chunk, 12);
-
-    ff_metadata_conv_ctx(s, NULL, vqf_metadata_conv);
-
-    return 0;
-}
-
-static int vqf_read_packet(AVFormatContext *s, AVPacket *pkt)
-{
-    VqfContext *c = s->priv_data;
-    int ret;
-    int size = (c->frame_bit_len - c->remaining_bits + 7)>>3;
-
-    if (av_new_packet(pkt, size+2) < 0)
-        return AVERROR(EIO);
-
-    pkt->pos          = avio_tell(s->pb);
-    pkt->stream_index = 0;
-    pkt->duration     = 1;
-
-    pkt->data[0] = 8 - c->remaining_bits; // Number of bits to skip
-    pkt->data[1] = c->last_frame_bits;
-    ret = avio_read(s->pb, pkt->data+2, size);
-
-    if (ret<=0) {
-        av_free_packet(pkt);
-        return AVERROR(EIO);
-    }
-
-    c->last_frame_bits = pkt->data[size+1];
-    c->remaining_bits  = (size << 3) - c->frame_bit_len + c->remaining_bits;
-
-    return size+2;
-}
-
-static int vqf_read_seek(AVFormatContext *s,
-                         int stream_index, int64_t timestamp, int flags)
-{
-    VqfContext *c = s->priv_data;
-    AVStream *st;
-    int ret;
-    int64_t pos;
-
-    st = s->streams[stream_index];
-    pos = av_rescale_rnd(timestamp * st->codec->bit_rate,
-                         st->time_base.num,
-                         st->time_base.den * (int64_t)c->frame_bit_len,
-                         (flags & AVSEEK_FLAG_BACKWARD) ?
-                                                   AV_ROUND_DOWN : AV_ROUND_UP);
-    pos *= c->frame_bit_len;
-
-    st->cur_dts = av_rescale(pos, st->time_base.den,
-                             st->codec->bit_rate * (int64_t)st->time_base.num);
-
-    if ((ret = avio_seek(s->pb, ((pos-7) >> 3) + s->data_offset, SEEK_SET)) < 0)
-        return ret;
-
-    c->remaining_bits = -7 - ((pos-7)&7);
-    return 0;
-}
-
-AVInputFormat ff_vqf_demuxer = {
-    .name           = "vqf",
-    .long_name      = NULL_IF_CONFIG_SMALL("Nippon Telegraph and Telephone Corporation (NTT) TwinVQ"),
-    .priv_data_size = sizeof(VqfContext),
-    .read_probe     = vqf_probe,
-    .read_header    = vqf_read_header,
-    .read_packet    = vqf_read_packet,
-    .read_seek      = vqf_read_seek,
-    .extensions     = "vqf,vql,vqe",
-};