aft.c: Silence scan-build warning.

[paraslash.git] / ogg_afh_common.c

diff --git a/ogg_afh_common.c b/ogg_afh_common.c
index 72fab7c14db9caeb8e5459dbead0798fb2e46c67..db82eda3f2d7394e111f4d0cf02d9a5f5fce4a79 100644 (file)
--- a/ogg_afh_common.c
+++ b/ogg_afh_common.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2011 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2004-2012 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -37,13 +37,16 @@ static int process_packets_2_and_3(ogg_sync_state *oss,
                         * apparent at packetout.
                         */
                        ogg_stream_pagein(stream, &page);
+                       PARA_INFO_LOG("ogg page serial: %d\n",
+                               ogg_page_serialno(&page));
                        while (i < 2) {
                                ret = ogg_stream_packetout(stream, &packet);
                                if (ret == 0)
                                        break;
                                if (ret < 0)
                                        return -E_STREAM_PACKETOUT;
-                               ret = ci->packet_callback(&packet, i + 1, afhi,
+                               ret = ci->packet_callback(&packet, i + 1,
+                                       ogg_page_serialno(&page), afhi,
                                        ci->private_data);
                                if (ret < 0)
                                        return ret;
@@ -77,14 +80,13 @@ static int process_ogg_packets(ogg_sync_state *oss, struct afh_info *afhi,
        ret = -E_STREAM_PACKETOUT;
        if (ogg_stream_packetout(&stream, &packet) != 1)
                goto out;
-       ret = ci->packet_callback(&packet, 0, afhi, ci->private_data);
+       ret = ci->packet_callback(&packet, 0, ogg_page_serialno(&page),
+               afhi, ci->private_data);
        if (ret < 0)
                goto out;
        ret = process_packets_2_and_3(oss, &stream, afhi, ci);
        if (ret < 0)
                goto out;
-       afhi->header_offset = 0;
-       afhi->header_len = oss->returned;
        ret = 1;
 out:
        ogg_stream_clear(&stream);
@@ -109,9 +111,9 @@ static void set_chunk_tv(int frames_per_chunk, int frequency,
  * given by \a map and \a numbytes and passes each packet to the callback
  * defined by \a ci.
  *
- * If the packet callback indicates success, the chunk table is built.  Chunk
- * zero contains the first three ogg packets while all other chunks consist of
- * exactly one ogg page.
+ * If the packet callback indicates success and \a afhi is not \p NULL, the
+ * chunk table is built. Chunk zero contains the first three ogg packets while
+ * all other chunks consist of exactly one ogg page.
  *
  * \param map Audio file data.
  * \param numbytes The length of \a map.
@@ -142,6 +144,9 @@ int ogg_get_file_info(char *map, size_t numbytes, struct afh_info *afhi,
        ret = process_ogg_packets(&oss, afhi, ci);
        if (ret < 0)
                goto out;
+       if (!afhi)
+               goto out;
+       afhi->header_len = oss.returned;
        oss.returned = 0;
        oss.fill = numbytes;
        /* count ogg pages and get duration of the file */
@@ -165,7 +170,7 @@ int ogg_get_file_info(char *map, size_t numbytes, struct afh_info *afhi,
        for (j = 1; ogg_sync_pageseek(&oss, &op) > 0; /* nothing */) {
                int granule = ogg_page_granulepos(&op);
 
-               while (granule > j * frames_per_chunk) {
+               while (granule >= (j + 1) * frames_per_chunk) {
                        j++;
                        if (j >= ct_size) {
                                ct_size *= 2;