gui: Remove pointless special casing in align_str().

[paraslash.git] / oggdec_filter.c

diff --git a/oggdec_filter.c b/oggdec_filter.c
index 1eaa79300f5f70a9310ca17d7c52e5ba38e76a5b..4b801356075ba8b7f1ebb4280708aac94194912a 100644 (file)
--- a/oggdec_filter.c
+++ b/oggdec_filter.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2014 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005 Andre Noll <maan@tuebingen.mpg.de>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -136,14 +136,13 @@ open:
                0, /* no initial bytes */
                ovc); /* the ov_open_callbacks */
        if (oret == OV_ENOTVORBIS || oret == OV_EBADHEADER) {
-               /* this might be due to the input buffer being too small */
+               /* maybe the input buffer is too small */
                if (!btr_no_parent(btrn)) {
                        fn->min_iqs += 1000;
                        iqs = btr_get_input_queue_size(btrn);
                        ret = 0;
                        if (iqs < fn->min_iqs)
                                goto out;
-                       PARA_CRIT_LOG("iqs: %zu\n", iqs);
                        btr_merge(btrn, fn->min_iqs);
                        pod->converted = 0;
                        goto open;
@@ -179,12 +178,20 @@ out:
        return ret;
 }
 
+/** Suspend decoding if output queue size is larger than that. */
 #define OGGDEC_MAX_OUTPUT_SIZE (96 * 1024)
+
+/**
+  * Allocate chunks of this size and produce at most one chunk of output per
+  * ->post_select() invocation. If the buffer could only be filled partially
+  * due to insufficient input being available, it is shrunk to the real output
+  * size and the resized buffer is fed into the output queue.
+  */
 #define OGGDEC_OUTPUT_CHUNK_SIZE (32 * 1024)
 
-static void ogg_pre_select(struct sched *s, struct task *t)
+static void ogg_pre_select(struct sched *s, void *context)
 {
-       struct filter_node *fn = container_of(t, struct filter_node, task);
+       struct filter_node *fn = context;
        struct private_oggdec_data *pod = fn->private_data;
        struct btr_node *btrn = fn->btrn;
        int ret;
@@ -199,9 +206,9 @@ static void ogg_pre_select(struct sched *s, struct task *t)
        sched_min_delay(s);
 }
 
-static int ogg_post_select(__a_unused struct sched *s, struct task *t)
+static int ogg_post_select(__a_unused struct sched *s, void *context)
 {
-       struct filter_node *fn = container_of(t, struct filter_node, task);
+       struct filter_node *fn = context;
        struct private_oggdec_data *pod = fn->private_data;
        struct btr_node *btrn = fn->btrn;
        int ret, have;
@@ -236,13 +243,8 @@ static int ogg_post_select(__a_unused struct sched *s, struct task *t)
                        break;
                fn->min_iqs = 0;
                have += ret;
-               if (have < OGGDEC_OUTPUT_CHUNK_SIZE)
-                       continue;
-               if (btr_get_output_queue_size(btrn) > OGGDEC_MAX_OUTPUT_SIZE)
+               if (have >= OGGDEC_OUTPUT_CHUNK_SIZE)
                        break;
-               btr_add_output(buf, have, btrn);
-               buf = para_malloc(OGGDEC_OUTPUT_CHUNK_SIZE);
-               have = 0;
        }
        pod->have_more = (ret > 0);
        if (have > 0) {