Пример #1
0
/** Read packet table chunk */
static int read_pakt_chunk(AVFormatContext *s, int64_t size)
{
    ByteIOContext *pb = s->pb;
    AVStream *st      = s->streams[0];
    CaffContext *caf  = s->priv_data;
    int64_t pos = 0, ccount;
    int num_packets, i;

    ccount = url_ftell(pb);

    num_packets = get_be64(pb);
    if (num_packets < 0 || INT32_MAX / sizeof(AVIndexEntry) < num_packets)
        return AVERROR_INVALIDDATA;

    st->nb_frames  = get_be64(pb); /* valid frames */
    st->nb_frames += get_be32(pb); /* priming frames */
    st->nb_frames += get_be32(pb); /* remainder frames */

    st->duration = 0;
    for (i = 0; i < num_packets; i++) {
        av_add_index_entry(s->streams[0], pos, st->duration, 0, 0, AVINDEX_KEYFRAME);
        pos += caf->bytes_per_packet ? caf->bytes_per_packet : ff_mp4_read_descr_len(pb);
        st->duration += caf->frames_per_packet ? caf->frames_per_packet : ff_mp4_read_descr_len(pb);
    }

    if (url_ftell(pb) - ccount != size) {
        av_log(s, AV_LOG_ERROR, "error reading packet table\n");
        return -1;
    }

    caf->num_bytes = pos;
    return 0;
}
Пример #2
0
int read_fsmonitor_extension(struct index_state *istate, const void *data,
	unsigned long sz)
{
	const char *index = data;
	uint32_t hdr_version;
	uint32_t ewah_size;
	struct ewah_bitmap *fsmonitor_dirty;
	int ret;

	if (sz < sizeof(uint32_t) + sizeof(uint64_t) + sizeof(uint32_t))
		return error("corrupt fsmonitor extension (too short)");

	hdr_version = get_be32(index);
	index += sizeof(uint32_t);
	if (hdr_version != INDEX_EXTENSION_VERSION)
		return error("bad fsmonitor version %d", hdr_version);

	istate->fsmonitor_last_update = get_be64(index);
	index += sizeof(uint64_t);

	ewah_size = get_be32(index);
	index += sizeof(uint32_t);

	fsmonitor_dirty = ewah_new();
	ret = ewah_read_mmap(fsmonitor_dirty, index, ewah_size);
	if (ret != ewah_size) {
		ewah_free(fsmonitor_dirty);
		return error("failed to parse ewah bitmap reading fsmonitor index extension");
	}
	istate->fsmonitor_dirty = fsmonitor_dirty;

	trace_printf_key(&trace_fsmonitor, "read fsmonitor extension successful");
	return 0;
}
Пример #3
0
static void avrcp_cid_hook_cb(const void *data, uint16_t len, void *user_data)
{
	struct step *step;
	uint8_t pdu, event;

	util_hexdump('>', data, len, print_avrcp, NULL);

	pdu = ((uint8_t *) data)[9];
	switch (pdu) {
	case AVRCP_GET_PLAY_STATUS:
		step = g_new0(struct step, 1);
		step->callback = CB_AVRCP_PLAY_STATUS_RSP;
		step->callback_result.song_length = get_be32(data + 13);
		step->callback_result.song_position = get_be32(data + 17);
		step->callback_result.play_status = ((uint8_t *) data)[21];
		schedule_callback_verification(step);
		break;
	case AVRCP_REGISTER_NOTIFICATION:
		event = ((uint8_t *) data)[13];
		switch (event) {
		case 0x01:
			step = g_new0(struct step, 1);
			step->callback = CB_AVRCP_REG_NOTIF_RSP;
			step->callback_result.play_status =
							((uint8_t *) data)[14];
			schedule_callback_verification(step);
			break;

		case 0x02:
			step = g_new0(struct step, 1);
			step->callback = CB_AVRCP_REG_NOTIF_RSP;
			step->callback_result.rc_index = get_be64(data + 14);
			schedule_callback_verification(step);
			break;

		case 0x05:
			step = g_new0(struct step, 1);
			step->callback = CB_AVRCP_REG_NOTIF_RSP;
			step->callback_result.song_position =
							get_be32(data + 14);
			schedule_callback_verification(step);
			break;
		}
		break;
	case AVRCP_GET_ELEMENT_ATTRIBUTES:
		step = g_new0(struct step, 1);
		step->callback = CB_AVRCP_GET_ATTR_RSP;
		step->callback_result.num_of_attrs = ((uint8_t *) data)[13];

		memset(exp_attrs, 0, 2 * sizeof(btrc_element_attr_val_t));
		exp_attrs[0].attr_id = get_be16(data + 16);
		memcpy(exp_attrs[0].text, data + 22, 19);
		exp_attrs[1].attr_id = get_be16(data + 43);
		memcpy(exp_attrs[1].text, data + 49, 6);
		step->callback_result.attrs = exp_attrs;
		schedule_callback_verification(step);
		break;
	}
}
static int parse_encap_ip6(struct rtattr *rta, size_t len, int *argcp, char ***argvp)
{
	int id_ok = 0, dst_ok = 0, tos_ok = 0, ttl_ok = 0;
	char **argv = *argvp;
	int argc = *argcp;

	while (argc > 0) {
		if (strcmp(*argv, "id") == 0) {
			__u64 id;

			NEXT_ARG();
			if (id_ok++)
				duparg2("id", *argv);
			if (get_be64(&id, *argv, 0))
				invarg("\"id\" value is invalid\n", *argv);
			rta_addattr64(rta, len, LWTUNNEL_IP6_ID, id);
		} else if (strcmp(*argv, "dst") == 0) {
			inet_prefix addr;

			NEXT_ARG();
			if (dst_ok++)
				duparg2("dst", *argv);
			get_addr(&addr, *argv, AF_INET6);
			rta_addattr_l(rta, len, LWTUNNEL_IP6_DST, &addr.data, addr.bytelen);
		} else if (strcmp(*argv, "tc") == 0) {
			__u32 tc;

			NEXT_ARG();
			if (tos_ok++)
				duparg2("tc", *argv);
			if (rtnl_dsfield_a2n(&tc, *argv))
				invarg("\"tc\" value is invalid\n", *argv);
			rta_addattr8(rta, len, LWTUNNEL_IP6_TC, tc);
		} else if (strcmp(*argv, "hoplimit") == 0) {
			__u8 hoplimit;

			NEXT_ARG();
			if (ttl_ok++)
				duparg2("hoplimit", *argv);
			if (get_u8(&hoplimit, *argv, 0))
				invarg("\"hoplimit\" value is invalid\n", *argv);
			rta_addattr8(rta, len, LWTUNNEL_IP6_HOPLIMIT, hoplimit);
		} else {
			break;
		}
		argc--; argv++;
	}

	/* argv is currently the first unparsed argument,
	 * but the lwt_parse_encap() caller will move to the next,
	 * so step back */
	*argcp = argc + 1;
	*argvp = argv - 1;

	return 0;
}
Пример #5
0
static data_check_t psb_skip_image_resources(const unsigned char *buffer, const unsigned int buffer_size, file_recovery_t *file_recovery)
{
  while(file_recovery->calculated_file_size + buffer_size/2  >= file_recovery->file_size &&
      file_recovery->calculated_file_size + 16 < file_recovery->file_size + buffer_size/2)
  {
    const unsigned int i=file_recovery->calculated_file_size - file_recovery->file_size + buffer_size/2;
    const unsigned int l=get_be64(buffer, i)+8;
#ifdef DEBUG_PSD
    log_info("Layer info at 0x%lx\n", (long unsigned)(l + file_recovery->calculated_file_size));
#endif
    if(l<4)
      return DC_STOP;
    file_recovery->calculated_file_size+=l;
    file_recovery->data_check=&psb_skip_layer_info;
    return psb_skip_layer_info(buffer, buffer_size, file_recovery);
  }
  return DC_CONTINUE;
}
Пример #6
0
static void print_uint(uint8_t indent, const uint8_t *data, uint32_t size)
{
	switch (size) {
	case 1:
		print_field("%*c0x%2.2x", indent, ' ', data[0]);
		break;
	case 2:
		print_field("%*c0x%4.4x", indent, ' ', get_be16(data));
		break;
	case 4:
		print_field("%*c0x%8.8x", indent, ' ', get_be32(data));
		break;
	case 8:
		print_field("%*c0x%16.16" PRIx64, indent, ' ', get_be64(data));
		break;
	default:
		packet_hexdump(data, size);
		break;
	}
}
Пример #7
0
/** Read audio description chunk */
static int read_desc_chunk(AVFormatContext *s)
{
    ByteIOContext *pb = s->pb;
    CaffContext *caf  = s->priv_data;
    AVStream *st;
    int flags;

    /* new audio stream */
    st = av_new_stream(s, 0);
    if (!st)
        return AVERROR(ENOMEM);

    /* parse format description */
    st->codec->codec_type  = AVMEDIA_TYPE_AUDIO;
    st->codec->sample_rate = av_int2dbl(get_be64(pb));
    st->codec->codec_tag   = get_be32(pb);
    flags = get_be32(pb);
    caf->bytes_per_packet  = get_be32(pb);
    st->codec->block_align = caf->bytes_per_packet;
    caf->frames_per_packet = get_be32(pb);
    st->codec->channels    = get_be32(pb);
    st->codec->bits_per_coded_sample = get_be32(pb);

    /* calculate bit rate for constant size packets */
    if (caf->frames_per_packet > 0 && caf->bytes_per_packet > 0) {
        st->codec->bit_rate = (uint64_t)st->codec->sample_rate * (uint64_t)caf->bytes_per_packet * 8
                              / (uint64_t)caf->frames_per_packet;
    } else {
        st->codec->bit_rate = 0;
    }

    /* determine codec */
    if (st->codec->codec_tag == MKBETAG('l','p','c','m'))
        st->codec->codec_id = ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample, (flags ^ 0x2) | 0x4);
    else
        st->codec->codec_id = ff_codec_get_id(ff_codec_caf_tags, st->codec->codec_tag);
    return 0;
}
Пример #8
0
static data_check_t psb_skip_color_mode(const unsigned char *buffer, const unsigned int buffer_size, file_recovery_t *file_recovery)
{
  const struct psb_file_header *psb=(const struct psb_file_header *)&buffer[buffer_size/2];
  psb_image_data_size_max=(uint64_t)be16(psb->channels) * be32(psb->height) * be32(psb->width) * be16(psb->depth) / 8;
#ifdef DEBUG_PSD
  log_info("psb_image_data_size_max %lu\n", (long unsigned)psb_image_data_size_max);
#endif
  while(file_recovery->calculated_file_size + buffer_size/2  >= file_recovery->file_size &&
      file_recovery->calculated_file_size + 16 < file_recovery->file_size + buffer_size/2)
  {
    const unsigned int i=file_recovery->calculated_file_size - file_recovery->file_size + buffer_size/2;
    const unsigned int l=get_be64(buffer, i)+8;
#ifdef DEBUG_PSD
    log_info("Color mode at 0x%lx\n", (long unsigned)(l + file_recovery->calculated_file_size));
#endif
    if(l<4)
      return DC_STOP;
    file_recovery->calculated_file_size+=l;
    file_recovery->data_check=&psb_skip_image_resources;
    return psb_skip_image_resources(buffer, buffer_size, file_recovery);
  }
  return DC_CONTINUE;
}
Пример #9
0
static int read_header(AVFormatContext *s,
                       AVFormatParameters *ap)
{
    ByteIOContext *pb = s->pb;
    CaffContext *caf  = s->priv_data;
    AVStream *st;
    uint32_t tag = 0;
    int found_data, ret;
    int64_t size;

    url_fskip(pb, 8); /* magic, version, file flags */

    /* audio description chunk */
    if (get_be32(pb) != MKBETAG('d','e','s','c')) {
        av_log(s, AV_LOG_ERROR, "desc chunk not present\n");
        return AVERROR_INVALIDDATA;
    }
    size = get_be64(pb);
    if (size != 32)
        return AVERROR_INVALIDDATA;

    ret = read_desc_chunk(s);
    if (ret)
        return ret;
    st = s->streams[0];

    /* parse each chunk */
    found_data = 0;
    while (!url_feof(pb)) {

        /* stop at data chunk if seeking is not supported or
           data chunk size is unknown */
        if (found_data && (caf->data_size < 0 || url_is_streamed(pb)))
            break;

        tag  = get_be32(pb);
        size = get_be64(pb);
        if (url_feof(pb))
            break;

        switch (tag) {
        case MKBETAG('d','a','t','a'):
            url_fskip(pb, 4); /* edit count */
            caf->data_start = url_ftell(pb);
            caf->data_size  = size < 0 ? -1 : size - 4;
            if (caf->data_size > 0 && !url_is_streamed(pb))
                url_fskip(pb, caf->data_size);
            found_data = 1;
            break;

        /* magic cookie chunk */
        case MKBETAG('k','u','k','i'):
            if (read_kuki_chunk(s, size))
                return AVERROR_INVALIDDATA;
            break;

        /* packet table chunk */
        case MKBETAG('p','a','k','t'):
            if (read_pakt_chunk(s, size))
                return AVERROR_INVALIDDATA;
            break;

        case MKBETAG('i','n','f','o'):
            read_info_chunk(s, size);
            break;

        default:
#define _(x) ((x) >= ' ' ? (x) : ' ')
            av_log(s, AV_LOG_WARNING, "skipping CAF chunk: %08X (%c%c%c%c)\n",
                tag, _(tag>>24), _((tag>>16)&0xFF), _((tag>>8)&0xFF), _(tag&0xFF));
#undef _
        case MKBETAG('f','r','e','e'):
            if (size < 0)
                return AVERROR_INVALIDDATA;
            url_fskip(pb, size);
            break;
        }
    }

    if (!found_data)
        return AVERROR_INVALIDDATA;

    if (caf->bytes_per_packet > 0 && caf->frames_per_packet > 0) {
        if (caf->data_size > 0)
            st->nb_frames = (caf->data_size / caf->bytes_per_packet) * caf->frames_per_packet;
    } else if (st->nb_index_entries) {
        st->codec->bit_rate = st->codec->sample_rate * caf->data_size * 8 /
                              st->duration;
    } else {
        av_log(s, AV_LOG_ERROR, "Missing packet table. It is required when "
                                "block size or frame size are variable.\n");
        return AVERROR_INVALIDDATA;
    }
    s->file_size = url_fsize(pb);
    s->file_size = FFMAX(0, s->file_size);

    av_set_pts_info(st, 64, 1, st->codec->sample_rate);
    st->start_time = 0;

    /* position the stream at the start of data */
    if (caf->data_size >= 0)
        url_fseek(pb, caf->data_start, SEEK_SET);

    return 0;
}
Пример #10
0
int __acc_cdecl_qsort be64_compare(const void *e1, const void *e2)
{
    const upx_uint64_t d1 = get_be64(e1);
    const upx_uint64_t d2 = get_be64(e2);
    return (d1 < d2) ? -1 : ((d1 > d2) ? 1 : 0);
}
Пример #11
0
static int get_sci(__u64 *sci, const char *arg)
{
	return get_be64(sci, arg, 16);
}
static int sox_read_header(AVFormatContext *s,
                           AVFormatParameters *ap)
{
    ByteIOContext *pb = s->pb;
    unsigned header_size, comment_size;
    double sample_rate, sample_rate_frac;
    AVStream *st;

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

    st->codec->codec_type = CODEC_TYPE_AUDIO;

    if (get_le32(pb) == SOX_TAG) {
        st->codec->codec_id = CODEC_ID_PCM_S32LE;
        header_size         = get_le32(pb);
        url_fskip(pb, 8); /* sample count */
        sample_rate         = av_int2dbl(get_le64(pb));
        st->codec->channels = get_le32(pb);
        comment_size        = get_le32(pb);
    } else {
        st->codec->codec_id = CODEC_ID_PCM_S32BE;
        header_size         = get_be32(pb);
        url_fskip(pb, 8); /* sample count */
        sample_rate         = av_int2dbl(get_be64(pb));
        st->codec->channels = get_be32(pb);
        comment_size        = get_be32(pb);
    }

    if (comment_size > 0xFFFFFFFFU - SOX_FIXED_HDR - 4U) {
        av_log(s, AV_LOG_ERROR, "invalid comment size (%u)\n", comment_size);
        return -1;
    }

    if (sample_rate <= 0 || sample_rate > INT_MAX) {
        av_log(s, AV_LOG_ERROR, "invalid sample rate (%f)\n", sample_rate);
        return -1;
    }

    sample_rate_frac = sample_rate - floor(sample_rate);
    if (sample_rate_frac)
        av_log(s, AV_LOG_WARNING,
               "truncating fractional part of sample rate (%f)\n",
               sample_rate_frac);

    if ((header_size + 4) & 7 || header_size < SOX_FIXED_HDR + comment_size
        || st->codec->channels > 65535) /* Reserve top 16 bits */ {
        av_log(s, AV_LOG_ERROR, "invalid header\n");
        return -1;
    }

    if (comment_size &&
        comment_size + FF_INPUT_BUFFER_PADDING_SIZE >= comment_size) {
        char *comment = av_mallocz(comment_size + FF_INPUT_BUFFER_PADDING_SIZE);
        if (get_buffer(pb, comment, comment_size) != comment_size) {
            av_freep(&comment);
            return AVERROR_IO;
        }
        av_metadata_set(&s->metadata, "comment", comment);
        av_freep(&comment);
    }

    url_fskip(pb, header_size - SOX_FIXED_HDR - comment_size);

    st->codec->sample_rate           = sample_rate;
    st->codec->bits_per_coded_sample = 32;
    st->codec->bit_rate              = st->codec->sample_rate *
                                       st->codec->bits_per_coded_sample *
                                       st->codec->channels;
    st->codec->block_align           = st->codec->bits_per_coded_sample *
                                       st->codec->channels / 8;

    av_set_pts_info(st, 64, 1, st->codec->sample_rate);

    return 0;
}