diff options
| -rw-r--r-- | ChangeLog | 13 | ||||
| -rw-r--r-- | gst/rtp/gstrtptheoradepay.c | 169 | ||||
| -rw-r--r-- | gst/rtp/gstrtptheorapay.c | 148 | ||||
| -rw-r--r-- | gst/rtp/gstrtpvorbisdepay.c | 20 |
4 files changed, 249 insertions, 101 deletions
@@ -1,5 +1,18 @@ 2007-05-14 Wim Taymans <wim@fluendo.com> + * gst/rtp/gstrtptheoradepay.c: (decode_base64), + (gst_rtp_theora_depay_parse_configuration): + * gst/rtp/gstrtptheorapay.c: (encode_base64), + (gst_rtp_theora_pay_finish_headers), + (gst_rtp_theora_pay_handle_buffer): + Update theora pay/depayloader in a similar to vorbis. + + * gst/rtp/gstrtpvorbisdepay.c: + (gst_rtp_vorbis_depay_parse_configuration): + Update docs. + +2007-05-14 Wim Taymans <wim@fluendo.com> + * gst/rtsp/gstrtspsrc.c: (gst_rtspsrc_send): When we try to execute a method that is not supported by the server, don't error out but remove the method from the accepted methods so that diff --git a/gst/rtp/gstrtptheoradepay.c b/gst/rtp/gstrtptheoradepay.c index 47ab3826..a8a642e6 100644 --- a/gst/rtp/gstrtptheoradepay.c +++ b/gst/rtp/gstrtptheoradepay.c @@ -59,7 +59,9 @@ GST_STATIC_PAD_TEMPLATE ("sink", "clock-rate = (int) [1, MAX ], " "encoding-name = (string) \"THEORA\"" /* All required parameters * - * "encoding-params = (string) <num channels>" + * "sampling = (string) { "YCbCr-4:2:0", "YCbCr-4:2:2", "YCbCr-4:4:4" } " + * "width = (string) [1, 1048561] (multiples of 16) " + * "height = (string) [1, 1048561] (multiples of 16) " * "delivery-method = (string) { inline, in_band, out_band/<specific_name> } " * "configuration = (string) ANY" */ @@ -77,9 +79,6 @@ GST_STATIC_PAD_TEMPLATE ("src", GST_STATIC_CAPS ("video/x-theora") ); -/* 42 bytes for the theora identification packet length */ -#define THEORA_ID_LEN 42 - GST_BOILERPLATE (GstRtpTheoraDepay, gst_rtp_theora_depay, GstBaseRTPDepayload, GST_TYPE_BASE_RTP_DEPAYLOAD); @@ -151,28 +150,70 @@ gst_rtp_theora_depay_finalize (GObject * object) G_OBJECT_CLASS (parent_class)->finalize (object); } +static const guint8 a2bin[256] = { + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 62, 64, 64, 64, 63, + 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 64, 64, 64, 64, 64, 64, + 64, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 64, 64, 64, 64, 64, + 64, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 +}; + +static guint +decode_base64 (const gchar * in, guint8 * out) +{ + guint8 v1, v2; + guint len = 0; + + v1 = a2bin[(gint) * in]; + while (v1 <= 63) { + /* read 4 bytes, write 3 bytes, invalid base64 are zeroes */ + v2 = a2bin[(gint) * ++in]; + *out++ = (v1 << 2) | ((v2 & 0x3f) >> 4); + v1 = (v2 > 63 ? 64 : a2bin[(gint) * ++in]); + *out++ = (v2 << 4) | ((v1 & 0x3f) >> 2); + v2 = (v1 > 63 ? 64 : a2bin[(gint) * ++in]); + *out++ = (v1 << 6) | (v2 & 0x3f); + v1 = (v2 > 63 ? 64 : a2bin[(gint) * ++in]); + len += 3; + } + /* move to '\0' */ + while (*in != '\0') + in++; + + /* subtract padding */ + while (len > 0 && *--in == '=') + len--; + + return len; +} + static gboolean gst_rtp_theora_depay_parse_configuration (GstRtpTheoraDepay * rtptheoradepay, const gchar * configuration) { - GValue v = { 0 }; GstBuffer *buf; guint32 num_headers; guint8 *data; guint size; - gint i; - - /* deserialize base16 to buffer */ - g_value_init (&v, GST_TYPE_BUFFER); - if (!gst_value_deserialize (&v, configuration)) - goto wrong_configuration; + gint i, j; - buf = gst_value_get_buffer (&v); - gst_buffer_ref (buf); - g_value_unset (&v); + /* deserialize base64 to buffer */ + size = strlen (configuration); + GST_DEBUG_OBJECT (rtptheoradepay, "base64 config size %u", size); - data = GST_BUFFER_DATA (buf); - size = GST_BUFFER_SIZE (buf); + data = g_malloc (size); + size = decode_base64 (configuration, data); GST_DEBUG_OBJECT (rtptheoradepay, "config size %u", size); @@ -201,74 +242,96 @@ gst_rtp_theora_depay_parse_configuration (GstRtpTheoraDepay * rtptheoradepay, /* 0 1 2 3 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Ident | .. + * | Ident | length .. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * .. | n. of headers | length1 | length2 .. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * .. | Identification Header .. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ................................................................. * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * .. length | Identification Header .. + * .. | Comment Header .. * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * .. Identification Header | + * ................................................................. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * .. Comment Header | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Setup Header .. * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ................................................................. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * .. Setup Header | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * */ for (i = 0; i < num_headers; i++) { guint32 ident; guint16 length; + guint8 n_headers, b; GstRtpTheoraConfig *conf; - GstTagList *list; + guint *h_sizes; - if (size < 5) + if (size < 6) goto too_small; ident = (data[0] << 16) | (data[1] << 8) | data[2]; length = (data[3] << 8) | data[4]; - size -= 5; - data += 5; + n_headers = data[5]; + size -= 6; + data += 6; - GST_DEBUG_OBJECT (rtptheoradepay, "header %d, ident %08x, length %u", i, - ident, length); + GST_DEBUG_OBJECT (rtptheoradepay, + "header %d, ident 0x%08x, length %u, left %u", i, ident, length, size); - if (size < length + THEORA_ID_LEN) + if (size < length) goto too_small; - GST_DEBUG_OBJECT (rtptheoradepay, "preparing headers"); + /* read header sizes we read 2 sizes, the third size (for which we allocate + * space) must be derived from the total packed header length. */ + h_sizes = g_newa (guint, n_headers + 1); + for (j = 0; j < n_headers; j++) { + guint h_size; + + h_size = 0; + do { + if (size < 1) + goto too_small; + b = *data++; + size--; + h_size = (h_size << 7) | (b & 0x7f); + } while (b & 0x80); + GST_DEBUG_OBJECT (rtptheoradepay, "headers %d: size: %u", j, h_size); + h_sizes[j] = h_size; + length -= h_size; + } + /* last header length is the remaining space */ + GST_DEBUG_OBJECT (rtptheoradepay, "last header size: %u", length); + h_sizes[j] = length; + GST_DEBUG_OBJECT (rtptheoradepay, "preparing headers"); conf = g_new0 (GstRtpTheoraConfig, 1); conf->ident = ident; - buf = gst_buffer_new_and_alloc (THEORA_ID_LEN); - memcpy (GST_BUFFER_DATA (buf), data, THEORA_ID_LEN); - conf->headers = g_list_append (conf->headers, buf); - data += THEORA_ID_LEN; - size -= THEORA_ID_LEN; - - /* create a dummy comment */ - list = gst_tag_list_new (); - buf = - gst_tag_list_to_vorbiscomment_buffer (list, (guint8 *) "\201theora", 7, - "Theora RTP depayloader"); - conf->headers = g_list_append (conf->headers, buf); - gst_tag_list_free (list); - - buf = gst_buffer_new_and_alloc (length); - memcpy (GST_BUFFER_DATA (buf), data, length); - conf->headers = g_list_append (conf->headers, buf); - data += length; - size -= length; + for (j = 0; j <= n_headers; j++) { + guint h_size; + + h_size = h_sizes[j]; + if (size < h_size) + goto too_small; + GST_DEBUG_OBJECT (rtptheoradepay, "reading header %d, size %u", j, + h_size); + + buf = gst_buffer_new_and_alloc (h_size); + memcpy (GST_BUFFER_DATA (buf), data, h_size); + conf->headers = g_list_append (conf->headers, buf); + data += h_size; + size -= h_size; + } rtptheoradepay->configs = g_list_append (rtptheoradepay->configs, conf); } - return TRUE; /* ERRORS */ -wrong_configuration: - { - GST_DEBUG_OBJECT (rtptheoradepay, "error parsing configuration"); - return FALSE; - } too_small: { GST_DEBUG_OBJECT (rtptheoradepay, "configuration too small"); diff --git a/gst/rtp/gstrtptheorapay.c b/gst/rtp/gstrtptheorapay.c index 418b9f0c..c8f907e6 100644 --- a/gst/rtp/gstrtptheorapay.c +++ b/gst/rtp/gstrtptheorapay.c @@ -212,31 +212,46 @@ gst_rtp_theora_pay_flush_packet (GstRtpTheoraPay * rtptheorapay) return ret; } +static gchar * +encode_base64 (const guint8 * in, guint size, guint * len) +{ + gchar *ret, *d; + static const gchar *v = + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + + *len = ((size + 2) / 3) * 4; + d = ret = (gchar *) g_malloc (*len + 1); + for (; size; in += 3) { /* process tuplets */ + *d++ = v[in[0] >> 2]; /* byte 1: high 6 bits (1) */ + /* byte 2: low 2 bits (1), high 4 bits (2) */ + *d++ = v[((in[0] << 4) + (--size ? (in[1] >> 4) : 0)) & 0x3f]; + /* byte 3: low 4 bits (2), high 2 bits (3) */ + *d++ = size ? v[((in[1] << 2) + (--size ? (in[2] >> 6) : 0)) & 0x3f] : '='; + /* byte 4: low 6 bits (3) */ + *d++ = size ? v[in[2] & 0x3f] : '='; + if (size) + size--; /* count third character if processed */ + } + *d = '\0'; /* tie off string */ + + return ret; /* return the resulting string */ +} + static gboolean gst_rtp_theora_pay_finish_headers (GstBaseRTPPayload * basepayload) { GstRtpTheoraPay *rtptheorapay = GST_RTP_THEORA_PAY (basepayload); GList *walk; - guint length; - gchar *configuration; - gchar *wstr, *hstr; - guint8 *data; + guint length, size, n_headers, configlen; + gchar *wstr, *hstr, *configuration; + guint8 *data, *config; guint32 ident; - GValue v = { 0 }; - GstBuffer *config; GST_DEBUG_OBJECT (rtptheorapay, "finish headers"); if (!rtptheorapay->headers) goto no_headers; - /* we need exactly 2 header packets */ - if (g_list_length (rtptheorapay->headers) != 2) { - GST_DEBUG_OBJECT (rtptheorapay, "We need 2 headers but have %d", - g_list_length (rtptheorapay->headers)); - goto no_headers; - } - /* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Number of packed headers | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ @@ -255,35 +270,60 @@ gst_rtp_theora_pay_finish_headers (GstBaseRTPPayload * basepayload) * 0 1 2 3 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Ident | .. + * | Ident | length .. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * .. | n. of headers | length1 | length2 .. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * .. | Identification Header .. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ................................................................. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * .. | Comment Header .. * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * .. length | Identification Header .. + * ................................................................. * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * .. Identification Header | + * .. Comment Header | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Setup Header .. * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ................................................................. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * .. Setup Header | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * */ - /* count the size of the headers first */ + /* we need 4 bytes for the number of headers (which is always 1), 3 bytes for + * the ident, 2 bytes for length, 1 byte for n. of headers. */ + size = 4 + 3 + 2 + 1; + + /* count the size of the headers first and update the hash */ length = 0; + n_headers = 0; ident = fnv1_hash_32_new (); for (walk = rtptheorapay->headers; walk; walk = g_list_next (walk)) { GstBuffer *buf = GST_BUFFER_CAST (walk->data); - - ident = - fnv1_hash_32_update (ident, GST_BUFFER_DATA (buf), + guint bsize; + + bsize = GST_BUFFER_SIZE (buf); + length += bsize; + n_headers++; + + /* count number of bytes needed for length fields, we don't need this for + * the last header. */ + if (g_list_next (walk)) { + do { + size++; + bsize >>= 7; + } while (bsize); + } + /* update hash */ + ident = fnv1_hash_32_update (ident, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf)); - length += GST_BUFFER_SIZE (buf); } - /* total config length is 4 bytes header number + size of the - * headers + 2 bytes length + 3 bytes for the ident */ - config = gst_buffer_new_and_alloc (length + 4 + 2 + 3); - data = GST_BUFFER_DATA (config); + /* packet length is header size + packet length */ + configlen = size + length; + config = data = g_malloc (configlen); /* number of packed headers, we only pack 1 header */ data[0] = 0; @@ -293,18 +333,51 @@ gst_rtp_theora_pay_finish_headers (GstBaseRTPPayload * basepayload) ident = fnv1_hash_32_to_24 (ident); rtptheorapay->payload_ident = ident; + GST_DEBUG_OBJECT (rtptheorapay, "ident 0x%08x", ident); /* take lower 3 bytes */ data[4] = (ident >> 16) & 0xff; data[5] = (ident >> 8) & 0xff; data[6] = ident & 0xff; - /* store length minus the length of the fixed theora header */ - data[7] = ((length - THEORA_ID_LEN) >> 8) & 0xff; - data[8] = (length - THEORA_ID_LEN) & 0xff; + /* store length of all theora headers */ + data[7] = ((length) >> 8) & 0xff; + data[8] = (length) & 0xff; + + /* store number of headers minus one. */ + data[9] = n_headers - 1; + data += 10; + + /* store length for each header */ + for (walk = rtptheorapay->headers; walk; walk = g_list_next (walk)) { + GstBuffer *buf = GST_BUFFER_CAST (walk->data); + guint bsize, size, temp; + + /* only need to store the length when it's not the last header */ + if (!g_list_next (walk)) + break; + + bsize = GST_BUFFER_SIZE (buf); + + /* calc size */ + size = 0; + do { + size++; + bsize >>= 7; + } while (bsize); + temp = size; + + bsize = GST_BUFFER_SIZE (buf); + /* write the size backwards */ + while (size) { + size--; + data[size] = bsize & 0x7f; + bsize >>= 7; + } + data += temp; + } /* copy header data */ - data += 9; for (walk = rtptheorapay->headers; walk; walk = g_list_next (walk)) { GstBuffer *buf = GST_BUFFER_CAST (walk->data); @@ -312,10 +385,9 @@ gst_rtp_theora_pay_finish_headers (GstBaseRTPPayload * basepayload) data += GST_BUFFER_SIZE (buf); } - /* serialize buffer to base16 */ - g_value_init (&v, GST_TYPE_BUFFER); - gst_value_take_buffer (&v, config); - configuration = gst_value_serialize (&v); + /* serialize to base64 */ + configuration = encode_base64 (config, configlen, &size); + g_free (config); /* configure payloader settings */ wstr = g_strdup_printf ("%d", rtptheorapay->width); @@ -333,7 +405,6 @@ gst_rtp_theora_pay_finish_headers (GstBaseRTPPayload * basepayload) g_free (wstr); g_free (hstr); g_free (configuration); - g_value_unset (&v); return TRUE; @@ -454,12 +525,7 @@ gst_rtp_theora_pay_handle_buffer (GstBaseRTPPayload * basepayload, if (rtptheorapay->need_headers) { /* we need to collect the headers and construct a config string from them */ - if (TDT == 2) { - GST_DEBUG_OBJECT (rtptheorapay, - "discard comment packet while collecting headers"); - ret = GST_FLOW_OK; - goto done; - } else if (TDT != 0) { + if (TDT != 0) { GST_DEBUG_OBJECT (rtptheorapay, "collecting header, buffer %p", buffer); /* append header to the list of headers */ rtptheorapay->headers = g_list_append (rtptheorapay->headers, buffer); diff --git a/gst/rtp/gstrtpvorbisdepay.c b/gst/rtp/gstrtpvorbisdepay.c index a4fd209c..dfcb78ee 100644 --- a/gst/rtp/gstrtpvorbisdepay.c +++ b/gst/rtp/gstrtpvorbisdepay.c @@ -81,9 +81,6 @@ GST_STATIC_PAD_TEMPLATE ("src", GST_STATIC_CAPS ("audio/x-vorbis") ); -/* 30 bytes for the vorbis identification packet length */ -#define VORBIS_ID_LEN 30 - GST_BOILERPLATE (GstRtpVorbisDepay, gst_rtp_vorbis_depay, GstBaseRTPDepayload, GST_TYPE_BASE_RTP_DEPAYLOAD); @@ -247,17 +244,26 @@ gst_rtp_vorbis_depay_parse_configuration (GstRtpVorbisDepay * rtpvorbisdepay, /* 0 1 2 3 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Ident | .. + * | Ident | length .. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * .. | n. of headers | length1 | length2 .. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * .. | Identification Header .. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ................................................................. * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * .. length | Identification Header .. + * .. | Comment Header .. * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * .. Identification Header | + * ................................................................. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * .. Comment Header | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Setup Header .. * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ................................................................. + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * .. Setup Header | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * */ for (i = 0; i < num_headers; i++) { guint32 ident; |