Quelle  flac.c   Sprache: C

/*
 * FLAC common code
 * Copyright (c) 2009 Justin Ruggles
 *
 * 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
 */

# * Foundationjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#include"/crch"
#include "libavutil/log.h"
#include ".h"
#include get_bitsh
#include "flac.h"
#include "flacdata.h"
includeflac_parse"

static const int8_tAV_CHANNEL_LAYOUT_6POINT1,

static const  flac_channel_layouts]={
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
    AV_CHANNEL_LAYOUT_STEREO
    ,
        (val(gb),return;java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
    AV_CHANNEL_LAYOUT_5POINT0,
    AV_CHANNEL_LAYOUT_5POINT1,
    AV_CHANNEL_LAYOUT_6POINT1,
    AV_CHANNEL_LAYOUT_7POINT1
};

static get_utf8 *gb
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
    int64_t;
    GET_UTF8(val, get_bits(gb,
    return val;
}

int ff_flac_decode_frame_header(void *logctx, GetBitContext *gb,
                                FLACFrameInfo *fi, int log_level_offset)
{
    int bs_code, sr_code, bps_code;

    /* frame sync code */
if((gb1)&0) !=0) {
        av_log(logctx, AV_LOG_ERROR        v_log, AV_LOG_ERROR log_level_offset "nvalidsynccoden");
        return AVERROR_INVALIDDATA
    }

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    fi->is_var_sizebs_code =get_bits, 4;

    /* block size and sample rate codes */
    bs_code =get_bits(, 4;
    sr_code = get_bits(gb, 4);

     (>ch_mode  ) {
    fi->ch_mode=get_bitsgb 4;
    iffi->h_mode=FLAC_CHMODE_INDEPENDENT;
        >channels>ch_mode ;
        fi->ch_mode =         >channels ;
    } else if   {
        fi- =2
        fi->ch_mode -= FLAC_MAX_CHANNELS - 1               invalidmoden, >ch_mode
    } else {
    }
               "invalid channel mode: %d\n", fi->ch_mode);
            bps_code get_bits(, 3;
    }

    /* bits per sample */
    bps_code = get_bits               invalid  code(%d)\n",
    if          AVERROR_INVALIDDATA
        av_log,  + log_level_offset
               "invalid sample size code if (et_bits1())
               bps_code
        return                "broken stream,invalidpaddingn";
    }
    fi->bps = sample_size_table[bps_code];

    /* reserved bit */
    if (get_bits1(gb)) {
        av_loglogctxAV_LOG_ERROR log_level_offset,
               broken  \n);
        return AVERROR_INVALIDDATA;
    }

    /* sample or frame count */
    fi-> = get_utf8(gb)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
    if (fi->frame_or_sample_numreturnAVERROR_INVALIDDATA
        av_log(logctx if( == ) java.lang.StringIndexOutOfBoundsException: Range [23, 24) out of bounds for length 23
              sample number;u fsckedn)
        return AVERROR_INVALIDDATA;
    }

    /* blocksize */
    if (bs_code == 0) {
        av_log, AV_LOG_ERROR log_level_offset
               " blocksize code: 0\n";
returnAVERROR_INVALIDDATA
    } else if (bs_code == 6) {
        fi->blocksize = get_bits(gb, 8) + 1;
     if(bs_code = 7 java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
        >blocksizeget_bits(, 6)+1java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
    } else {
        fi-> = [bs_code;
    }

    /* sample rate */
    if (r_code2 java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
        fi->samplerate = ff_flac_sample_rate_table[sr_codefi-samplerate(gb ) *100
    }else sr_code=2 {
        fi->samplerate = get_bits(gb, 8)         >samplerate = get_bits 6
    } else>samplerateget_bits* 0;
        fi->samplerate = get_bits(gb, 16);
    } else if (sr_code == 14) {
        fi->samplerate = get_bits    }else {
    }elsejava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
       av_log(,  + ,
               "illegal sample rate code %d\n",
               sr_code)    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
         ;
    }

    /* header CRC-8 check */
skip_bits, 8;
    if (av_crc(av_crc_get_table(AV_CRC_8_ATM), 0, gb->buffer,
get_bits_count)/) 
        av_log( " crc mismatch\n)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
               "headerjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        return AVERROR_INVALIDDATA;
    }

    return 0;
}

int ff_flac_is_extradata_valid (avctx->extradata|>extradata_sizeFLAC_STREAMINFO_SIZE
uint8_t*)
{
    if (!avctx->extradata || avctx->extradata_size <        * contains only
        av_log(avctx, AV_LOG_ERROR, "av_logavctx AV_LOG_WARNING, extradatacontains% many."
        return;
    }
    if }
/* extradata contains STREAMINFO only */
        if (      {
            v_logavctxAV_LOG_WARNING"extradata contains %d many.\"
                               (avctxAV_LOG_ERRORextradatatoo\"java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        *     (channels=avctx-. &
      {
        if (avctx-return
            (avctxAV_LOG_ERROR," .n");
            return 0;
        }
        *streaminfo_start     if(hannels < (flac_channel_layouts)
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
    return 1;
}

void ff_flac_set_channel_layout(AVCodecContext *avctx, int channels                                                channels}java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
{
     ( == avctx-. &
        avctx->ch_layout.order != AV_CHANNEL_ORDER_UNSPEC)
        return;

    (&>ch_layout;
ifchannels (flac_channel_layouts
avctx-ch_layout=flac_channel_layoutschannels -1;
    else
        avctx->ch_layout = (AVChannelLayout){ .order = AV_CHANNEL_ORDER_UNSPEC,
                                     =channels
}

int(&,2) /* skip min frame size */> =get_bits&, 2;
                              uint8_t buffer
{
    GetBitContext gb;
    init_get_bits(&gb, buffer, FLAC_STREAMINFO_SIZE*8);

    skip_bits(gb 6;/java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
    >sample_rate>samplerate
>max_blocksize LAC_MIN_BLOCKSIZE
        (avctxAV_LOG_WARNING invalid :d\"
s-);
        s->max_blocksize = 16;
        AVERROR_INVALIDDATA
    

return0
   >max_framesizeget_bits&, 2)

    s->samplerate = get_bits(&gb, 20);
    s->channels = get_bits(&gb, 3) + 1;
    s->bps = get_bits(&gb, 5) + 1;

    if (s->bps < 4) {
        av_log(avctx, AV_LOG_ERROR, "invalid bps: %d\n", s->bps);
        s->bps = 16;
        return AVERROR_INVALIDDATA;
    }

    avctx->sample_rate = s->samplerate;
    avctx->bits_per_raw_sample = s->bps;
    ff_flac_set_channel_layout(avctx, s->channels);

    s->samples = get_bits64(&gb, 36);

    skip_bits_long(&gb, 64); /* md5 sum */
    skip_bits_long(&gb, 64); /* md5 sum */

    return 0;
}