示例#1
0
/**
 * Parse an ID3v1 tag
 *
 * @param buf ID3v1_TAG_SIZE long buffer containing the tag
 */
static int parse_tag(AVFormatContext *s, const uint8_t *buf)
{
    char str[5];
    int genre;

    if (!(buf[0] == 'T' &&
            buf[1] == 'A' &&
            buf[2] == 'G'))
	{
        return -1;
	}
    get_string(s, "title",   buf +  3, 30);
    get_string(s, "artist",  buf + 33, 30);
    get_string(s, "album",   buf + 63, 30);
    get_string(s, "date",    buf + 93,  4);
    get_string(s, "comment", buf + 97, 30);
    if (buf[125] == 0 && buf[126] != 0)
    {
        snprintf(str, sizeof(str), "%d", buf[126]);
        av_metadata_set2(&s->metadata, "track", str, 0);
    }
    genre = buf[127];
    if (genre <= ID3v1_GENRE_MAX)
	{
        av_metadata_set2(&s->metadata, 
			"genre", ff_id3v1_genre_str[genre], 0);
	}
    return 0;
}
示例#2
0
static int read_tag(uint8_t *line, AVMetadata **m)
{
    uint8_t *key, *value, *p = line;

    /* find first not escaped '=' */
    while (1) {
        if (*p == '=')
            break;
        else if (*p == '\\')
            p++;

        if (*p++)
            continue;

        return 0;
    }

    if (!(key = unescape(line, p - line)))
        return AVERROR(ENOMEM);
    if (!(value = unescape(p + 1, strlen(p + 1)))) {
        av_free(key);
        return AVERROR(ENOMEM);
    }

    av_metadata_set2(m, key, value, AV_METADATA_DONT_STRDUP_KEY | AV_METADATA_DONT_STRDUP_VAL);
    return 0;
}
示例#3
0
static int ape_tag_read_field(AVFormatContext *s)
{
    AVIOContext *pb = s->pb;
    uint8_t key[1024], *value;
    uint32_t size, flags;
    int i, c;

    size = avio_rl32(pb);  /* field size */
    flags = avio_rl32(pb); /* field flags */
    for (i = 0; i < sizeof(key) - 1; i++) {
        c = avio_r8(pb);
        if (c < 0x20 || c > 0x7E)
            break;
        else
            key[i] = c;
    }
    key[i] = 0;
    if (c != 0) {
        av_log(s, AV_LOG_WARNING, "Invalid APE tag key '%s'.\n", key);
        return -1;
    }
    if (size >= UINT_MAX)
        return -1;
    value = av_malloc(size+1);
    if (!value)
        return AVERROR(ENOMEM);
    avio_read(pb, value, size);
    value[size] = 0;
    av_metadata_set2(&s->metadata, key, value, AV_METADATA_DONT_STRDUP_VAL);
    return 0;
}
示例#4
0
void metadata_conv(AVMetadata **pm, const AVMetadataConv *d_conv,
                                           const AVMetadataConv *s_conv)
{
    /* TODO: use binary search to look up the two conversion tables
       if the tables are getting big enough that it would matter speed wise */
    const AVMetadataConv *sc, *dc;
    AVMetadataTag *mtag = NULL;
    AVMetadata *dst = NULL;
    const char *key;

    while((mtag=av_metadata_get(*pm, "", mtag, AV_METADATA_IGNORE_SUFFIX))) {
        key = mtag->key;
        if (s_conv != d_conv) {
            if (s_conv)
                for (sc=s_conv; sc->native; sc++)
                    if (!strcasecmp(key, sc->native)) {
                        key = sc->generic;
                        break;
                    }
            if (d_conv)
                for (dc=d_conv; dc->native; dc++)
                    if (!strcasecmp(key, dc->generic)) {
                        key = dc->native;
                        break;
                    }
        }
        av_metadata_set2(&dst, key, mtag->value, 0);
    }
    av_metadata_free(pm);
    *pm = dst;
}
示例#5
0
void av_metadata_copy(AVMetadata **dst, AVMetadata *src, int flags)
{
    AVMetadataTag *t = NULL;

    while ((t = av_metadata_get(src, "", t, AV_METADATA_IGNORE_SUFFIX)))
        av_metadata_set2(dst, t->key, t->value, flags);
}
示例#6
0
文件: r3d.c 项目: andoma/libav
static int r3d_read_red1(AVFormatContext *s)
{
    AVStream *st = av_new_stream(s, 0);
    char filename[258];
    int tmp, tmp2;

    if (!st)
        return AVERROR(ENOMEM);
    st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
    st->codec->codec_id = CODEC_ID_JPEG2000;

    tmp  = avio_r8(s->pb); // major version
    tmp2 = avio_r8(s->pb); // minor version
    av_dlog(s, "version %d.%d\n", tmp, tmp2);

    tmp = avio_rb16(s->pb); // unknown
    av_dlog(s, "unknown1 %d\n", tmp);

    tmp = avio_rb32(s->pb);
    av_set_pts_info(st, 32, 1, tmp);

    tmp = avio_rb32(s->pb); // filenum
    av_dlog(s, "filenum %d\n", tmp);

    avio_skip(s->pb, 32); // unknown

    st->codec->width  = avio_rb32(s->pb);
    st->codec->height = avio_rb32(s->pb);

    tmp = avio_rb16(s->pb); // unknown
    av_dlog(s, "unknown2 %d\n", tmp);

    st->codec->time_base.den = avio_rb16(s->pb);
    st->codec->time_base.num = avio_rb16(s->pb);

    tmp = avio_r8(s->pb); // audio channels
    av_dlog(s, "audio channels %d\n", tmp);
    if (tmp > 0) {
        AVStream *ast = av_new_stream(s, 1);
        if (!ast)
            return AVERROR(ENOMEM);
        ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;
        ast->codec->codec_id = CODEC_ID_PCM_S32BE;
        ast->codec->channels = tmp;
        av_set_pts_info(ast, 32, 1, st->time_base.den);
    }

    avio_read(s->pb, filename, 257);
    filename[sizeof(filename)-1] = 0;
    av_metadata_set2(&st->metadata, "filename", filename, 0);

    av_dlog(s, "filename %s\n", filename);
    av_dlog(s, "resolution %dx%d\n", st->codec->width, st->codec->height);
    av_dlog(s, "timescale %d\n", st->time_base.den);
    av_dlog(s, "frame rate %d/%d\n",
            st->codec->time_base.num, st->codec->time_base.den);

    return 0;
}
示例#7
0
文件: cafdec.c 项目: AndyA/ffmbc
/** Read information chunk */
static void read_info_chunk(AVFormatContext *s, int64_t size)
{
    ByteIOContext *pb = s->pb;
    unsigned int i;
    unsigned int nb_entries = get_be32(pb);
    for (i = 0; i < nb_entries; i++) {
        char key[32];
        char value[1024];
        get_strz(pb, key, sizeof(key));
        get_strz(pb, value, sizeof(value));
        av_metadata_set2(&s->metadata, key, value, 0);
    }
}
示例#8
0
文件: aiffdec.c 项目: FreeSrk/omx
/* Metadata string read */
static void get_meta(AVFormatContext *s, const char *key, int size)
{
    uint8_t *str = av_malloc(size+1);
    int res;

    if (!str) {
        avio_skip(s->pb, size);
        return;
    }

    res = avio_read(s->pb, str, size);
    if (res < 0)
        return;

    str[res] = 0;
    av_metadata_set2(&s->metadata, key, str, AV_METADATA_DONT_STRDUP_VAL);
}
示例#9
0
/* Metadata string read */
static int get_metadata(AVFormatContext *s,
                        const char *const tag,
                        const unsigned data_size)
{
    uint8_t *buf = ((data_size + 1) == 0) ? NULL : av_malloc(data_size + 1);

    if (!buf)
        return AVERROR(ENOMEM);

    if (avio_read(s->pb, buf, data_size) < 0) {
        av_free(buf);
        return AVERROR(EIO);
    }
    buf[data_size] = 0;
    av_metadata_set2(&s->metadata, tag, buf, AV_METADATA_DONT_STRDUP_VAL);
    return 0;
}
示例#10
0
文件: id3v1.c 项目: lu-zero/ffmpeg
static void get_string(AVFormatContext *s, const char *key,
                       const uint8_t *buf, int buf_size)
{
    int i, c;
    char *q, str[512];

    q = str;
    for(i = 0; i < buf_size; i++) {
        c = buf[i];
        if (c == '\0')
            break;
        if ((q - str) >= sizeof(str) - 1)
            break;
        *q++ = c;
    }
    *q = '\0';

    if (*str)
        av_metadata_set2(&s->metadata, key, str, 0);
}
示例#11
0
int av_metadata_set(AVMetadata **pm, const char *key, const char *value)
{
    return av_metadata_set2(pm, key, value, 0);
}
示例#12
0
static int applehttp_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
    AppleHTTPContext *c = s->priv_data;
    int ret = 0, i, j, stream_offset = 0;

    if ((ret = parse_playlist(c, s->filename, NULL, s->pb)) < 0)
        goto fail;

    if (c->n_variants == 0) {
        av_log(NULL, AV_LOG_WARNING, "Empty playlist\n");
        ret = AVERROR_EOF;
        goto fail;
    }
    /* If the playlist only contained variants, parse each individual
     * variant playlist. */
    if (c->n_variants > 1 || c->variants[0]->n_segments == 0) {
        for (i = 0; i < c->n_variants; i++) {
            struct variant *v = c->variants[i];
            if ((ret = parse_playlist(c, v->url, v, NULL)) < 0)
                goto fail;
        }
    }

    if (c->variants[0]->n_segments == 0) {
        av_log(NULL, AV_LOG_WARNING, "Empty playlist\n");
        ret = AVERROR_EOF;
        goto fail;
    }

    /* If this isn't a live stream, calculate the total duration of the
     * stream. */
    if (c->variants[0]->finished) {
        int64_t duration = 0;
        for (i = 0; i < c->variants[0]->n_segments; i++)
            duration += c->variants[0]->segments[i]->duration;
        s->duration = duration * AV_TIME_BASE;
    }

    /* Open the demuxer for each variant */
    for (i = 0; i < c->n_variants; i++) {
        struct variant *v = c->variants[i];
        AVInputFormat *in_fmt = NULL;
        char bitrate_str[20];
        if (v->n_segments == 0)
            continue;

        v->index  = i;
        v->needed = 1;
        v->parent = s;

        /* If this is a live stream with more than 3 segments, start at the
         * third last segment. */
        v->cur_seq_no = v->start_seq_no;
        if (!v->finished && v->n_segments > 3)
            v->cur_seq_no = v->start_seq_no + v->n_segments - 3;

        v->read_buffer = av_malloc(INITIAL_BUFFER_SIZE);
        ffio_init_context(&v->pb, v->read_buffer, INITIAL_BUFFER_SIZE, 0, v,
                          read_data, NULL, NULL);
        v->pb.seekable = 0;
        ret = av_probe_input_buffer(&v->pb, &in_fmt, v->segments[0]->url,
                                    NULL, 0, 0);
        if (ret < 0)
            goto fail;
        ret = av_open_input_stream(&v->ctx, &v->pb, v->segments[0]->url,
                                   in_fmt, NULL);
        if (ret < 0)
            goto fail;
        v->stream_offset = stream_offset;
        snprintf(bitrate_str, sizeof(bitrate_str), "%d", v->bandwidth);
        /* Create new AVStreams for each stream in this variant */
        for (j = 0; j < v->ctx->nb_streams; j++) {
            AVStream *st = av_new_stream(s, i);
            if (!st) {
                ret = AVERROR(ENOMEM);
                goto fail;
            }
            avcodec_copy_context(st->codec, v->ctx->streams[j]->codec);
            av_metadata_set2(&st->metadata, "variant_bitrate", bitrate_str, 0);
        }
        stream_offset += v->ctx->nb_streams;
    }

    c->first_packet = 1;

    return 0;
fail:
    free_variant_list(c);
    return ret;
}
示例#13
0
static int iff_read_header(AVFormatContext *s,
                           AVFormatParameters *ap)
{
    IffDemuxContext *iff = s->priv_data;
    ByteIOContext *pb = s->pb;
    AVStream *st;
    uint32_t chunk_id, data_size;
    int padding, done = 0;
    int compression = -1;
    char *buf;

    st = av_new_stream(s, 0);
    if (!st)
      return AVERROR(ENOMEM);

    st->codec->channels = 1;
    url_fskip(pb, 8);
    // codec_tag used by ByteRun1 decoder to distinguish progressive (PBM) and interlaced (ILBM) content
    st->codec->codec_tag = get_le32(pb);

    while(!done && !url_feof(pb)) {
        chunk_id = get_le32(pb);
        data_size = get_be32(pb);
        padding = data_size & 1;

        switch(chunk_id) {
        case ID_VHDR:
            st->codec->codec_type = CODEC_TYPE_AUDIO;
            url_fskip(pb, 12);
            st->codec->sample_rate = get_be16(pb);
            url_fskip(pb, 1);
            compression            = get_byte(pb);
            url_fskip(pb, 4);
            break;

        case ID_BODY:
            iff->body_size = data_size;
            done = 1;
            break;

        case ID_CHAN:
            st->codec->channels = (get_be32(pb) < 6) ? 1 : 2;
            break;

        case ID_CMAP:
            st->codec->extradata_size = data_size;
            st->codec->extradata      = av_malloc(data_size);
            if (!st->codec->extradata)
                return AVERROR(ENOMEM);
            if (get_buffer(pb, st->codec->extradata, data_size) < 0)
                return AVERROR(EIO);
            break;

        case ID_BMHD:
            st->codec->codec_type            = CODEC_TYPE_VIDEO;
            st->codec->width                 = get_be16(pb);
            st->codec->height                = get_be16(pb);
            url_fskip(pb, 4); // x, y offset
            st->codec->bits_per_coded_sample = get_byte(pb);
            url_fskip(pb, 1); // masking
            compression                      = get_byte(pb);
            url_fskip(pb, 3); // paddding, transparent
            st->sample_aspect_ratio.num      = get_byte(pb);
            st->sample_aspect_ratio.den      = get_byte(pb);
            url_fskip(pb, 4); // source page width, height
            break;

        case ID_ANNO:
            buf = av_malloc(data_size + 1);
            if (!buf)
                break;
            get_buffer(pb, buf, data_size);
            buf[data_size] = 0;
            av_metadata_set2(&s->metadata, "comment", buf, AV_METADATA_DONT_STRDUP_VAL);
            break;

        default:
            url_fseek(pb, data_size + padding, SEEK_CUR);
            break;
        }
    }

    switch(st->codec->codec_type) {
    case CODEC_TYPE_AUDIO:
    av_set_pts_info(st, 32, 1, st->codec->sample_rate);

    switch(compression) {
    case COMP_NONE:
        st->codec->codec_id = CODEC_ID_PCM_S8;
        break;
    case COMP_FIB:
        st->codec->codec_id = CODEC_ID_8SVX_FIB;
        break;
    case COMP_EXP:
        st->codec->codec_id = CODEC_ID_8SVX_EXP;
        break;
    default:
        av_log(s, AV_LOG_ERROR, "iff: unknown compression method\n");
        return -1;
    }

    st->codec->bits_per_coded_sample = 8;
    st->codec->bit_rate = st->codec->channels * st->codec->sample_rate * st->codec->bits_per_coded_sample;
    st->codec->block_align = st->codec->channels * st->codec->bits_per_coded_sample;
    break;

    case CODEC_TYPE_VIDEO:
        switch (compression) {
        case BITMAP_RAW:
            if (st->codec->codec_tag == ID_ILBM) {
                st->codec->codec_id = CODEC_ID_IFF_ILBM;
            } else {
                st->codec->codec_id = CODEC_ID_RAWVIDEO;
                st->codec->pix_fmt  = PIX_FMT_PAL8;
                st->codec->codec_tag = 0;
            }
            break;
        case BITMAP_BYTERUN1:
            st->codec->codec_id = CODEC_ID_IFF_BYTERUN1;
            break;
        default:
            av_log(s, AV_LOG_ERROR, "unknown compression method\n");
            return AVERROR_INVALIDDATA;
        }
        break;
    default:
        return -1;
    }

    return 0;
}
示例#14
0
static int rpl_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
    ByteIOContext *pb = s->pb;
    RPLContext *rpl = s->priv_data;
    AVStream *vst = NULL, *ast = NULL;
    int total_audio_size;
    int error = 0;

    uint32_t i;

    int32_t audio_format, chunk_catalog_offset, number_of_chunks;
    AVRational fps;

    char line[RPL_LINE_LENGTH];

    // The header for RPL/ARMovie files is 21 lines of text
    // containing the various header fields.  The fields are always
    // in the same order, and other text besides the first
    // number usually isn't important.
    // (The spec says that there exists some significance
    // for the text in a few cases; samples needed.)
    error |= read_line(pb, line, sizeof(line));      // ARMovie
    error |= read_line(pb, line, sizeof(line));      // movie name
    av_metadata_set2(&s->metadata, "title"    , line, 0);
    error |= read_line(pb, line, sizeof(line));      // date/copyright
    av_metadata_set2(&s->metadata, "copyright", line, 0);
    error |= read_line(pb, line, sizeof(line));      // author and other
    av_metadata_set2(&s->metadata, "author"   , line, 0);

    // video headers
    vst = av_new_stream(s, 0);
    if (!vst)
        return AVERROR(ENOMEM);
    vst->codec->codec_type      = AVMEDIA_TYPE_VIDEO;
    vst->codec->codec_tag       = read_line_and_int(pb, &error);  // video format
    vst->codec->width           = read_line_and_int(pb, &error);  // video width
    vst->codec->height          = read_line_and_int(pb, &error);  // video height
    vst->codec->bits_per_coded_sample = read_line_and_int(pb, &error);  // video bits per sample
    error |= read_line(pb, line, sizeof(line));                   // video frames per second
    fps = read_fps(line, &error);
    av_set_pts_info(vst, 32, fps.den, fps.num);

    // Figure out the video codec
    switch (vst->codec->codec_tag) {
#if 0
        case 122:
            vst->codec->codec_id = CODEC_ID_ESCAPE122;
            break;
#endif
        case 124:
            vst->codec->codec_id = CODEC_ID_ESCAPE124;
            // The header is wrong here, at least sometimes
            vst->codec->bits_per_coded_sample = 16;
            break;
#if 0
        case 130:
            vst->codec->codec_id = CODEC_ID_ESCAPE130;
            break;
#endif
        default:
            av_log(s, AV_LOG_WARNING,
                   "RPL video format %i not supported yet!\n",
                   vst->codec->codec_tag);
            vst->codec->codec_id = CODEC_ID_NONE;
    }

    // Audio headers

    // ARMovie supports multiple audio tracks; I don't have any
    // samples, though. This code will ignore additional tracks.
    audio_format = read_line_and_int(pb, &error);  // audio format ID
    if (audio_format) {
        ast = av_new_stream(s, 0);
        if (!ast)
            return AVERROR(ENOMEM);
        ast->codec->codec_type      = AVMEDIA_TYPE_AUDIO;
        ast->codec->codec_tag       = audio_format;
        ast->codec->sample_rate     = read_line_and_int(pb, &error);  // audio bitrate
        ast->codec->channels        = read_line_and_int(pb, &error);  // number of audio channels
        ast->codec->bits_per_coded_sample = read_line_and_int(pb, &error);  // audio bits per sample
        // At least one sample uses 0 for ADPCM, which is really 4 bits
        // per sample.
        if (ast->codec->bits_per_coded_sample == 0)
            ast->codec->bits_per_coded_sample = 4;

        ast->codec->bit_rate = ast->codec->sample_rate *
                               ast->codec->bits_per_coded_sample *
                               ast->codec->channels;

        ast->codec->codec_id = CODEC_ID_NONE;
        switch (audio_format) {
            case 1:
                if (ast->codec->bits_per_coded_sample == 16) {
                    // 16-bit audio is always signed
                    ast->codec->codec_id = CODEC_ID_PCM_S16LE;
                    break;
                }
                // There are some other formats listed as legal per the spec;
                // samples needed.
                break;
            case 101:
                if (ast->codec->bits_per_coded_sample == 8) {
                    // The samples with this kind of audio that I have
                    // are all unsigned.
                    ast->codec->codec_id = CODEC_ID_PCM_U8;
                    break;
                } else if (ast->codec->bits_per_coded_sample == 4) {
                    ast->codec->codec_id = CODEC_ID_ADPCM_IMA_EA_SEAD;
                    break;
                }
                break;
        }
        if (ast->codec->codec_id == CODEC_ID_NONE) {
            av_log(s, AV_LOG_WARNING,
                   "RPL audio format %i not supported yet!\n",
                   audio_format);
        }
        av_set_pts_info(ast, 32, 1, ast->codec->bit_rate);
    } else {
        for (i = 0; i < 3; i++)
            error |= read_line(pb, line, sizeof(line));
    }

    rpl->frames_per_chunk = read_line_and_int(pb, &error);  // video frames per chunk
    if (rpl->frames_per_chunk > 1 && vst->codec->codec_tag != 124)
        av_log(s, AV_LOG_WARNING,
               "Don't know how to split frames for video format %i. "
               "Video stream will be broken!\n", vst->codec->codec_tag);

    number_of_chunks = read_line_and_int(pb, &error);  // number of chunks in the file
    // The number in the header is actually the index of the last chunk.
    number_of_chunks++;

    error |= read_line(pb, line, sizeof(line));  // "even" chunk size in bytes
    error |= read_line(pb, line, sizeof(line));  // "odd" chunk size in bytes
    chunk_catalog_offset =                       // offset of the "chunk catalog"
        read_line_and_int(pb, &error);           //   (file index)
    error |= read_line(pb, line, sizeof(line));  // offset to "helpful" sprite
    error |= read_line(pb, line, sizeof(line));  // size of "helpful" sprite
    error |= read_line(pb, line, sizeof(line));  // offset to key frame list

    // Read the index
    url_fseek(pb, chunk_catalog_offset, SEEK_SET);
    total_audio_size = 0;
    for (i = 0; i < number_of_chunks; i++) {
        int64_t offset, video_size, audio_size;
        error |= read_line(pb, line, sizeof(line));
        if (3 != sscanf(line, "%"PRId64" , %"PRId64" ; %"PRId64,
                        &offset, &video_size, &audio_size))
            error = -1;
        av_add_index_entry(vst, offset, i * rpl->frames_per_chunk,
                           video_size, rpl->frames_per_chunk, 0);
        if (ast)
            av_add_index_entry(ast, offset + video_size, total_audio_size,
                               audio_size, audio_size * 8, 0);
        total_audio_size += audio_size * 8;
    }

    if (error) return AVERROR(EIO);

    return 0;
}
示例#15
0
文件: nsvdec.c 项目: andoma/libav
static int nsv_parse_NSVf_header(AVFormatContext *s, AVFormatParameters *ap)
{
    NSVContext *nsv = s->priv_data;
    AVIOContext *pb = s->pb;
    unsigned int file_size, size;
    int64_t duration;
    int strings_size;
    int table_entries;
    int table_entries_used;

    av_dlog(s, "%s()\n", __FUNCTION__);

    nsv->state = NSV_UNSYNC; /* in case we fail */

    size = avio_rl32(pb);
    if (size < 28)
        return -1;
    nsv->NSVf_end = size;

    //s->file_size = (uint32_t)avio_rl32(pb);
    file_size = (uint32_t)avio_rl32(pb);
    av_dlog(s, "NSV NSVf chunk_size %u\n", size);
    av_dlog(s, "NSV NSVf file_size %u\n", file_size);

    nsv->duration = duration = avio_rl32(pb); /* in ms */
    av_dlog(s, "NSV NSVf duration %"PRId64" ms\n", duration);
    // XXX: store it in AVStreams

    strings_size = avio_rl32(pb);
    table_entries = avio_rl32(pb);
    table_entries_used = avio_rl32(pb);
    av_dlog(s, "NSV NSVf info-strings size: %d, table entries: %d, bis %d\n",
            strings_size, table_entries, table_entries_used);
    if (pb->eof_reached)
        return -1;

    av_dlog(s, "NSV got header; filepos %"PRId64"\n", avio_tell(pb));

    if (strings_size > 0) {
        char *strings; /* last byte will be '\0' to play safe with str*() */
        char *p, *endp;
        char *token, *value;
        char quote;

        p = strings = av_mallocz(strings_size + 1);
        endp = strings + strings_size;
        avio_read(pb, strings, strings_size);
        while (p < endp) {
            while (*p == ' ')
                p++; /* strip out spaces */
            if (p >= endp-2)
                break;
            token = p;
            p = strchr(p, '=');
            if (!p || p >= endp-2)
                break;
            *p++ = '\0';
            quote = *p++;
            value = p;
            p = strchr(p, quote);
            if (!p || p >= endp)
                break;
            *p++ = '\0';
            av_dlog(s, "NSV NSVf INFO: %s='%s'\n", token, value);
            av_metadata_set2(&s->metadata, token, value, 0);
        }
        av_free(strings);
    }
    if (pb->eof_reached)
        return -1;

    av_dlog(s, "NSV got infos; filepos %"PRId64"\n", avio_tell(pb));

    if (table_entries_used > 0) {
        int i;
        nsv->index_entries = table_entries_used;
        if((unsigned)table_entries_used >= UINT_MAX / sizeof(uint32_t))
            return -1;
        nsv->nsvs_file_offset = av_malloc((unsigned)table_entries_used * sizeof(uint32_t));

        for(i=0;i<table_entries_used;i++)
            nsv->nsvs_file_offset[i] = avio_rl32(pb) + size;

        if(table_entries > table_entries_used &&
           avio_rl32(pb) == MKTAG('T','O','C','2')) {
            nsv->nsvs_timestamps = av_malloc((unsigned)table_entries_used*sizeof(uint32_t));
            for(i=0;i<table_entries_used;i++) {
                nsv->nsvs_timestamps[i] = avio_rl32(pb);
            }
        }
    }

    av_dlog(s, "NSV got index; filepos %"PRId64"\n", avio_tell(pb));

#ifdef DEBUG_DUMP_INDEX
#define V(v) ((v<0x20 || v > 127)?'.':v)
    /* dump index */
    av_dlog(s, "NSV %d INDEX ENTRIES:\n", table_entries);
    av_dlog(s, "NSV [dataoffset][fileoffset]\n", table_entries);
    for (i = 0; i < table_entries; i++) {
        unsigned char b[8];
        avio_seek(pb, size + nsv->nsvs_file_offset[i], SEEK_SET);
        avio_read(pb, b, 8);
        av_dlog(s, "NSV [0x%08lx][0x%08lx]: %02x %02x %02x %02x %02x %02x %02x %02x"
           "%c%c%c%c%c%c%c%c\n",
           nsv->nsvs_file_offset[i], size + nsv->nsvs_file_offset[i],
           b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7],
           V(b[0]), V(b[1]), V(b[2]), V(b[3]), V(b[4]), V(b[5]), V(b[6]), V(b[7]) );
    }
    //avio_seek(pb, size, SEEK_SET); /* go back to end of header */
#undef V
#endif

    avio_seek(pb, nsv->base_offset + size, SEEK_SET); /* required for dumbdriving-271.nsv (2 extra bytes) */

    if (pb->eof_reached)
        return -1;
    nsv->state = NSV_HAS_READ_NSVF;
    return 0;
}