int av_probe_input_buffer2(AVIOContext *pb, AVInputFormat **fmt,

                          const char *filename, void *logctx,

                          unsigned int offset, unsigned int max_probe_size)

{

    AVProbeData pd = { filename ? filename : "", NULL, -offset };

    uint8_t *buf = NULL;

    uint8_t *mime_type;

    int ret = 0, probe_size, buf_offset = 0;

    int score = 0;



    if (!max_probe_size) {

        max_probe_size = PROBE_BUF_MAX;

    } else if (max_probe_size > PROBE_BUF_MAX) {

        max_probe_size = PROBE_BUF_MAX;

    } else if (max_probe_size < PROBE_BUF_MIN) {

        av_log(logctx, AV_LOG_ERROR,

               "Specified probe size value %u cannot be < %u\n", max_probe_size, PROBE_BUF_MIN);

        return AVERROR(EINVAL);

    }



    if (offset >= max_probe_size) {

        return AVERROR(EINVAL);

    }



    if (!*fmt && pb->av_class && av_opt_get(pb, "mime_type", AV_OPT_SEARCH_CHILDREN, &mime_type) >= 0 && mime_type) {

        if (!av_strcasecmp(mime_type, "audio/aacp")) {

            *fmt = av_find_input_format("aac");

        }

        av_freep(&mime_type);

    }



    for(probe_size= PROBE_BUF_MIN; probe_size<=max_probe_size && !*fmt;

        probe_size = FFMIN(probe_size<<1, FFMAX(max_probe_size, probe_size+1))) {



        if (probe_size < offset) {

            continue;

        }

        score = probe_size < max_probe_size ? AVPROBE_SCORE_RETRY : 0;



        /* read probe data */

        if ((ret = av_reallocp(&buf, probe_size + AVPROBE_PADDING_SIZE)) < 0)

            return ret;

        if ((ret = avio_read(pb, buf + buf_offset, probe_size - buf_offset)) < 0) {

            /* fail if error was not end of file, otherwise, lower score */

            if (ret != AVERROR_EOF) {

                av_free(buf);

                return ret;

            }

            score = 0;

            ret = 0;            /* error was end of file, nothing read */

        }

        buf_offset += ret;

        pd.buf_size = buf_offset - offset;

        pd.buf = &buf[offset];



        memset(pd.buf + pd.buf_size, 0, AVPROBE_PADDING_SIZE);



        /* guess file format */

        *fmt = av_probe_input_format2(&pd, 1, &score);

        if(*fmt){

            if(score <= AVPROBE_SCORE_RETRY){ //this can only be true in the last iteration

                av_log(logctx, AV_LOG_WARNING, "Format %s detected only with low score of %d, misdetection possible!\n", (*fmt)->name, score);

            }else

                av_log(logctx, AV_LOG_DEBUG, "Format %s probed with size=%d and score=%d\n", (*fmt)->name, probe_size, score);

#if 0

            FILE *f = fopen("probestat.tmp", "ab");

            fprintf(f, "probe_size:%d format:%s score:%d filename:%s\n", probe_size, (*fmt)->name, score, filename);

            fclose(f);

#endif

        }

    }



    if (!*fmt) {

        av_free(buf);

        return AVERROR_INVALIDDATA;

    }



    /* rewind. reuse probe buffer to avoid seeking */

    ret = ffio_rewind_with_probe_data(pb, &buf, pd.buf_size);



    return ret < 0 ? ret : score;

}

int av_probe_input_buffer2(AVIOContext *pb, AVInputFormat **fmt,

                          const char *filename, void *logctx,

                          unsigned int offset, unsigned int max_probe_size)

{

    AVProbeData pd = { filename ? filename : "", NULL, -offset };

    uint8_t *buf = NULL;

    uint8_t *mime_type;

    int ret = 0, probe_size, buf_offset = 0;

    int score = 0;



    if (!max_probe_size) {

        max_probe_size = PROBE_BUF_MAX;

    } else if (max_probe_size > PROBE_BUF_MAX) {

        max_probe_size = PROBE_BUF_MAX;

    } else if (max_probe_size < PROBE_BUF_MIN) {

        av_log(logctx, AV_LOG_ERROR,

               "Specified probe size value %u cannot be < %u\n", max_probe_size, PROBE_BUF_MIN);

        return AVERROR(EINVAL);

    }



    if (offset >= max_probe_size) {

        return AVERROR(EINVAL);

    }



    if (!*fmt && pb->av_class && av_opt_get(pb, "mime_type", AV_OPT_SEARCH_CHILDREN, &mime_type) >= 0 && mime_type) {

        if (!av_strcasecmp(mime_type, "audio/aacp")) {

            *fmt = av_find_input_format("aac");

        }

        av_freep(&mime_type);

    }



    for(probe_size= PROBE_BUF_MIN; probe_size<=max_probe_size && !*fmt;

        probe_size = FFMIN(probe_size<<1, FFMAX(max_probe_size, probe_size+1))) {



        if (probe_size < offset) {

            continue;

        }

        score = probe_size < max_probe_size ? AVPROBE_SCORE_RETRY : 0;



        

        if ((ret = av_reallocp(&buf, probe_size + AVPROBE_PADDING_SIZE)) < 0)

            return ret;

        if ((ret = avio_read(pb, buf + buf_offset, probe_size - buf_offset)) < 0) {

            

            if (ret != AVERROR_EOF) {

                av_free(buf);

                return ret;

            }

            score = 0;

            ret = 0;            

        }

        buf_offset += ret;

        pd.buf_size = buf_offset - offset;

        pd.buf = &buf[offset];



        memset(pd.buf + pd.buf_size, 0, AVPROBE_PADDING_SIZE);



        

        *fmt = av_probe_input_format2(&pd, 1, &score);

        if(*fmt){

            if(score <= AVPROBE_SCORE_RETRY){ 

                av_log(logctx, AV_LOG_WARNING, "Format %s detected only with low score of %d, misdetection possible!\n", (*fmt)->name, score);

            }else

                av_log(logctx, AV_LOG_DEBUG, "Format %s probed with size=%d and score=%d\n", (*fmt)->name, probe_size, score);

#if 0

            FILE *f = fopen("probestat.tmp", "ab");

            fprintf(f, "probe_size:%d format:%s score:%d filename:%s\n", probe_size, (*fmt)->name, score, filename);

            fclose(f);

#endif

        }

    }



    if (!*fmt) {

        av_free(buf);

        return AVERROR_INVALIDDATA;

    }



    

    ret = ffio_rewind_with_probe_data(pb, &buf, pd.buf_size);



    return ret < 0 ? ret : score;

}

        if (probe_size < offset) {             continue;
int FUNC_0(AVIOContext *VAR_0, AVInputFormat **VAR_1,

                          const char *VAR_2, void *VAR_3,

                          unsigned int VAR_4, unsigned int VAR_5)

{

    AVProbeData pd = { VAR_2 ? VAR_2 : "", NULL, -VAR_4 };

    uint8_t *buf = NULL;

    uint8_t *mime_type;

    int VAR_6 = 0, VAR_7, VAR_8 = 0;

    int VAR_9 = 0;



    if (!VAR_5) {

        VAR_5 = PROBE_BUF_MAX;

    } else if (VAR_5 > PROBE_BUF_MAX) {

        VAR_5 = PROBE_BUF_MAX;

    } else if (VAR_5 < PROBE_BUF_MIN) {

        av_log(VAR_3, AV_LOG_ERROR,

               "Specified probe size value %u cannot be < %u\n", VAR_5, PROBE_BUF_MIN);

        return AVERROR(EINVAL);

    }



    if (VAR_4 >= VAR_5) {

        return AVERROR(EINVAL);

    }



    if (!*VAR_1 && VAR_0->av_class && av_opt_get(VAR_0, "mime_type", AV_OPT_SEARCH_CHILDREN, &mime_type) >= 0 && mime_type) {

        if (!av_strcasecmp(mime_type, "audio/aacp")) {

            *VAR_1 = av_find_input_format("aac");

        }

        av_freep(&mime_type);

    }



    for(VAR_7= PROBE_BUF_MIN; VAR_7<=VAR_5 && !*VAR_1;

        VAR_7 = FFMIN(VAR_7<<1, FFMAX(VAR_5, VAR_7+1))) {



        if (VAR_7 < VAR_4) {

            continue;

        }

        VAR_9 = VAR_7 < VAR_5 ? AVPROBE_SCORE_RETRY : 0;



        

        if ((VAR_6 = av_reallocp(&buf, VAR_7 + AVPROBE_PADDING_SIZE)) < 0)

            return VAR_6;

        if ((VAR_6 = avio_read(VAR_0, buf + VAR_8, VAR_7 - VAR_8)) < 0) {

            

            if (VAR_6 != AVERROR_EOF) {

                av_free(buf);

                return VAR_6;

            }

            VAR_9 = 0;

            VAR_6 = 0;            

        }

        VAR_8 += VAR_6;

        pd.buf_size = VAR_8 - VAR_4;

        pd.buf = &buf[VAR_4];



        memset(pd.buf + pd.buf_size, 0, AVPROBE_PADDING_SIZE);



        

        *VAR_1 = av_probe_input_format2(&pd, 1, &VAR_9);

        if(*VAR_1){

            if(VAR_9 <= AVPROBE_SCORE_RETRY){ 

                av_log(VAR_3, AV_LOG_WARNING, "Format %s detected only with low VAR_9 of %d, misdetection possible!\n", (*VAR_1)->name, VAR_9);

            }else

                av_log(VAR_3, AV_LOG_DEBUG, "Format %s probed with size=%d and VAR_9=%d\n", (*VAR_1)->name, VAR_7, VAR_9);

#if 0

            FILE *f = fopen("probestat.tmp", "ab");

            fprintf(f, "VAR_7:%d format:%s VAR_9:%d VAR_2:%s\n", VAR_7, (*VAR_1)->name, VAR_9, VAR_2);

            fclose(f);

#endif

        }

    }



    if (!*VAR_1) {

        av_free(buf);

        return AVERROR_INVALIDDATA;

    }



    

    VAR_6 = ffio_rewind_with_probe_data(VAR_0, &buf, pd.buf_size);



    return VAR_6 < 0 ? VAR_6 : VAR_9;

}

int FUNC_0(AVIOContext *VAR_0, AVInputFormat **VAR_1,
const char *VAR_2, void *VAR_3,
unsigned int VAR_4, unsigned int VAR_5)
{ AVProbeData pd = { VAR_2 ? VAR_2 : "", NULL, -VAR_4 }; uint8_t *buf = NULL; uint8_t *mime_type; int VAR_6 = 0, VAR_7, VAR_8 = 0; int VAR_9 = 0; if (!VAR_5) { VAR_5 = PROBE_BUF_MAX; } else if (VAR_5 > PROBE_BUF_MAX) { VAR_5 = PROBE_BUF_MAX; } else if (VAR_5 < PROBE_BUF_MIN) { av_log(VAR_3, AV_LOG_ERROR,
"Specified probe size value %u cannot be < %u\n", VAR_5, PROBE_BUF_MIN); return AVERROR(EINVAL); } if (VAR_4 >= VAR_5) { return AVERROR(EINVAL); } if (!*VAR_1 && VAR_0->av_class && av_opt_get(VAR_0, "mime_type", AV_OPT_SEARCH_CHILDREN, &mime_type) >= 0 && mime_type) { if (!av_strcasecmp(mime_type, "audio/aacp")) { *VAR_1 = av_find_input_format("aac"); } av_freep(&mime_type); } for(VAR_7= PROBE_BUF_MIN; VAR_7<=VAR_5 && !*VAR_1; VAR_7 = FFMIN(VAR_7<<1, FFMAX(VAR_5, VAR_7+1))) { if (VAR_7 < VAR_4) { continue; } VAR_9 = VAR_7 < VAR_5 ? AVPROBE_SCORE_RETRY : 0; if ((VAR_6 = av_reallocp(&buf, VAR_7 + AVPROBE_PADDING_SIZE)) < 0)
return VAR_6; if ((VAR_6 = avio_read(VAR_0, buf + VAR_8, VAR_7 - VAR_8)) < 0) { if (VAR_6 != AVERROR_EOF) { av_free(buf); return VAR_6; } VAR_9 = 0; VAR_6 = 0; } VAR_8 += VAR_6; pd.buf_size = VAR_8 - VAR_4; pd.buf = &buf[VAR_4]; memset(pd.buf + pd.buf_size, 0, AVPROBE_PADDING_SIZE); *VAR_1 = av_probe_input_format2(&pd, 1, &VAR_9); if(*VAR_1){ if(VAR_9 <= AVPROBE_SCORE_RETRY){ av_log(VAR_3, AV_LOG_WARNING, "Format %s detected only with low VAR_9 of %d, misdetection possible!\n", (*VAR_1)->name, VAR_9); }else av_log(VAR_3, AV_LOG_DEBUG, "Format %s probed with size=%d and VAR_9=%d\n", (*VAR_1)->name, VAR_7, VAR_9); #if 0
FILE *f = fopen("probestat.tmp", "ab"); fprintf(f, "VAR_7:%d format:%s VAR_9:%d VAR_2:%s\n", VAR_7, (*VAR_1)->name, VAR_9, VAR_2); fclose(f); #endif
} } if (!*VAR_1) { av_free(buf); return AVERROR_INVALIDDATA; } VAR_6 = ffio_rewind_with_probe_data(VAR_0, &buf, pd.buf_size); return VAR_6 < 0 ? VAR_6 : VAR_9; }