/*
- * Copyright (C) 2005-2010 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2012 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
#include <regex.h>
#include <vorbis/vorbisfile.h>
-#include <stdbool.h>
#include "para.h"
#include "list.h"
/** The number of channels of the current stream. */
unsigned int channels;
/** Current sample rate in Hz. */
- unsigned int samplerate;
+ unsigned int sample_rate;
+ /** Whether everything was decoded during the previous iteration. */
+ bool have_more;
};
static size_t cb_read(void *buf, size_t size, size_t nmemb, void *datasource)
static void ogg_open(struct filter_node *fn)
{
- struct private_oggdec_data *pod = para_calloc(
- sizeof(struct private_oggdec_data));
-
- fn->private_data = pod;
+ fn->private_data = para_calloc(sizeof(struct private_oggdec_data));
fn->min_iqs = 8000;
}
static void ogg_close(struct filter_node *fn)
{
struct private_oggdec_data *pod = fn->private_data;
- if (pod->vf) {
+
+ if (pod && pod->vf) {
PARA_DEBUG_LOG("ov_clearing %p, pod = %p\n", pod->vf, pod);
ov_clear(pod->vf);
free(pod->vf);
pod->vf = NULL;
} else
PARA_DEBUG_LOG("nothing to close\n");
- free(fn->private_data);
+ free(pod);
fn->private_data = NULL;
}
-#define OGGDEC_OUTPUT_CHUNK_SIZE (64 * 1024)
-
static int oggdec_execute(struct btr_node *btrn, const char *cmd, char **result)
{
struct filter_node *fn = btr_context(btrn);
struct private_oggdec_data *pod = fn->private_data;
- if (!strcmp(cmd, "samplerate")) {
- if (pod->samplerate == 0)
- return -E_BTR_NAVAIL;
- *result = make_message("%u", pod->samplerate);
- return 1;
- }
- if (!strcmp(cmd, "channels")) {
- if (pod->channels == 0)
- return -E_BTR_NAVAIL;
- *result = make_message("%u", pod->channels);
- return 1;
- }
- return -ERRNO_TO_PARA_ERROR(ENOTSUP);
+ return decoder_execute(cmd, pod->sample_rate, pod->channels, result);
}
static int ogg_init(struct filter_node *fn)
struct btr_node *btrn = fn->btrn;
int ret, oret;
size_t iqs;
+ struct OggVorbis_File *vf = para_malloc(sizeof(*vf));
- pod->vf = para_malloc(sizeof(struct OggVorbis_File));
PARA_NOTICE_LOG("iqs: %zu, min_iqs: %zu, opening ov callbacks\n",
btr_get_input_queue_size(btrn), fn->min_iqs);
open:
- oret = ov_open_callbacks(fn, pod->vf,
+ oret = ov_open_callbacks(fn, vf,
NULL, /* no initial buffer */
0, /* no initial bytes */
ovc); /* the ov_open_callbacks */
ret = -E_OGGDEC_FAULT;
if (oret < 0)
goto out;
- pod->channels = ov_info(pod->vf, 0)->channels;
- pod->samplerate = ov_info(pod->vf, 0)->rate;
+ pod->channels = ov_info(vf, 0)->channels;
+ pod->sample_rate = ov_info(vf, 0)->rate;
PARA_NOTICE_LOG("%d channels, %d Hz\n", pod->channels,
- pod->samplerate);
+ pod->sample_rate);
ret = 1;
out:
- if (ret <= 0) {
- free(pod->vf);
- pod->vf = NULL;
- } else {
+ if (ret <= 0)
+ free(vf);
+ else {
btr_consume(btrn, pod->converted);
pod->converted = 0;
fn->min_iqs = 0;
+ pod->vf = vf;
+ pod->have_more = true;
}
return ret;
}
+#define OGGDEC_MAX_OUTPUT_SIZE (96 * 1024)
+#define OGGDEC_OUTPUT_CHUNK_SIZE (32 * 1024)
+
+static void ogg_pre_select(struct sched *s, struct task *t)
+{
+ struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct private_oggdec_data *pod = fn->private_data;
+ struct btr_node *btrn = fn->btrn;
+ int ret;
+
+ ret = btr_node_status(btrn, fn->min_iqs, BTR_NT_INTERNAL);
+ if (ret != 0)
+ return sched_min_delay(s);
+ if (!pod->have_more)
+ return;
+ if (btr_get_output_queue_size(btrn) > OGGDEC_MAX_OUTPUT_SIZE)
+ return;
+ sched_min_delay(s);
+}
+
static void ogg_post_select(__a_unused struct sched *s, struct task *t)
{
struct filter_node *fn = container_of(t, struct filter_node, task);
struct private_oggdec_data *pod = fn->private_data;
struct btr_node *btrn = fn->btrn;
- int ret, ns;
+ int ret, have;
+ char *buf;
- pod->converted = 0;
- t->error = 0;
- ret = ns = btr_node_status(btrn, fn->min_iqs, BTR_NT_INTERNAL);
+ ret = btr_node_status(btrn, fn->min_iqs, BTR_NT_INTERNAL);
+ if (ret < 0 && ret != -E_BTR_EOF) /* fatal error */
+ goto out;
+ if (ret <= 0 && !pod->have_more) /* nothing to do */
+ goto out;
if (!pod->vf) {
if (ret <= 0)
goto out;
btr_merge(btrn, fn->min_iqs);
ret = ogg_init(fn);
- if (ret <= 0)
- goto out;
+ goto out;
}
+ have = 0;
+ buf = para_malloc(OGGDEC_OUTPUT_CHUNK_SIZE);
for (;;) {
- char *out = para_malloc(OGGDEC_OUTPUT_CHUNK_SIZE);
- ssize_t read_ret = ov_read(pod->vf, out, OGGDEC_OUTPUT_CHUNK_SIZE,
+ ret = ov_read(pod->vf, buf + have, OGGDEC_OUTPUT_CHUNK_SIZE - have,
ENDIAN, 2 /* 16 bit */, 1 /* signed */, NULL);
btr_consume(btrn, pod->converted);
pod->converted = 0;
- if (read_ret <= 0)
- free(out);
- ret = ns;
- if (read_ret == 0 || read_ret == OV_HOLE)
- goto out;
- ret = -E_OGGDEC_BADLINK;
- if (read_ret < 0)
- goto out;
- btr_add_output(out, read_ret, btrn);
- if (btr_get_output_queue_size(btrn) > 640 * 1024)
- return; /* enough data for the moment */
+ if (ret <= 0)
+ 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)
+ break;
+ btr_add_output(buf, have, btrn);
+ buf = para_malloc(OGGDEC_OUTPUT_CHUNK_SIZE);
+ have = 0;
}
+ pod->have_more = (ret > 0);
+ if (have > 0)
+ btr_add_output(buf, have, btrn);
+ else
+ free(buf);
+ if (ret == OV_HOLE) /* avoid buffer underruns */
+ fn->min_iqs = 9000;
+ if (ret >= 0 || ret == OV_HOLE)
+ return;
+ ret = -E_OGGDEC_BADLINK;
out:
- if (ret < 0) {
- t->error = ret;
+ t->error = ret;
+ if (ret < 0)
btr_remove_node(btrn);
- }
}
/**
{
f->open = ogg_open;
f->close = ogg_close;
- f->pre_select = generic_filter_pre_select;
+ f->pre_select = ogg_pre_select;
f->post_select = ogg_post_select;
f->execute = oggdec_execute;
}
projects / paraslash.git / blobdiff