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vlc-2-2
Commit 99940208 authored by Jean-Paul Saman's avatar Jean-Paul Saman
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stream_filter/httplive.c: Cleanup hls_thread_t and stream_sys_t structs. 

Cleanup hls_thread_t and stream_sys_t structs:
- duplicate members
- rename hls_playlist_t to hls_playlist_s
- move download members to stream_sys_t inside a hls_download_s struct
- check for p_sys->thread is no longer needed in segment_Seek()
parent c407725c
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Showing with 73 additions and 75 deletions
modules/stream_filter/httplive.c
View file @ 99940208
......@@ -90,13 +90,6 @@ typedef struct
VLC_COMMON_MEMBERS
/* */
int current; /* current hls_stream */
int segment; /* current segment for downloading */
int seek; /* segment requested by seek (default -1) */
vlc_mutex_t lock_wait; /* protect segment download counter */
vlc_cond_t wait; /* some condition to wait on */
vlc_array_t *hls_stream;/* bandwidth adaptation */
stream_t *s;
} hls_thread_t;
......@@ -110,8 +103,18 @@ struct stream_sys_t
vlc_array_t *hls_stream;/* bandwidth adaptation */
uint64_t bandwidth; /* measured bandwidth (bits per second) */
/* Download */
struct hls_download_s
{
int current; /* current hls_stream */
int segment; /* current segment for downloading */
int seek; /* segment requested by seek (default -1) */
vlc_mutex_t lock_wait; /* protect segment download counter */
vlc_cond_t wait; /* some condition to wait on */
} download;
/* Playback */
struct hls_playback_t
struct hls_playback_s
{
uint64_t offset; /* current offset in media */
int current; /* current hls_stream */
......@@ -1197,7 +1200,7 @@ static void* hls_Thread(vlc_object_t *p_this)
while (vlc_object_alive(p_this))
{
hls_stream_t *hls = hls_Get(client->hls_stream, client->current);
hls_stream_t *hls = hls_Get(p_sys->hls_stream, p_sys->download.current);
assert(hls);
/* Sliding window (~60 seconds worth of movie) */
......@@ -1207,25 +1210,25 @@ static void* hls_Thread(vlc_object_t *p_this)
/* Is there a new segment to process? */
if ((!p_sys->b_live && (p_sys->playback.segment < (count - 6))) ||
(client->segment >= count))
(p_sys->download.segment >= count))
{
/* wait */
vlc_mutex_lock(&client->lock_wait);
while (((client->segment - p_sys->playback.segment > 6) ||
(client->segment >= count)) &&
(client->seek == -1) &&
vlc_mutex_lock(&p_sys->download.lock_wait);
while (((p_sys->download.segment - p_sys->playback.segment > 6) ||
(p_sys->download.segment >= count)) &&
(p_sys->download.seek == -1) &&
(mdate() < p_sys->playlist.wakeup))
{
vlc_cond_wait(&client->wait, &client->lock_wait);
vlc_cond_wait(&p_sys->download.wait, &p_sys->download.lock_wait);
if (!vlc_object_alive(p_this)) break;
}
/* */
if (client->seek >= 0)
if (p_sys->download.seek >= 0)
{
client->segment = client->seek;
client->seek = -1;
p_sys->download.segment = p_sys->download.seek;
p_sys->download.seek = -1;
}
vlc_mutex_unlock(&client->lock_wait);
vlc_mutex_unlock(&p_sys->download.lock_wait);
}
if (!vlc_object_alive(p_this)) break;
......@@ -1257,11 +1260,11 @@ static void* hls_Thread(vlc_object_t *p_this)
}
vlc_mutex_lock(&hls->lock);
segment_t *segment = segment_GetSegment(hls, client->segment);
segment_t *segment = segment_GetSegment(hls, p_sys->download.segment);
assert(segment);
vlc_mutex_unlock(&hls->lock);
if (Download(client->s, hls, segment, &client->current) != VLC_SUCCESS)
if (Download(client->s, hls, segment, &p_sys->download.current) != VLC_SUCCESS)
{
if (!vlc_object_alive(p_this)) break;
......@@ -1274,16 +1277,16 @@ static void* hls_Thread(vlc_object_t *p_this)
/* download succeeded */
/* determine next segment to download */
vlc_mutex_lock(&client->lock_wait);
if (client->seek >= 0)
vlc_mutex_lock(&p_sys->download.lock_wait);
if (p_sys->download.seek >= 0)
{
client->segment = client->seek;
client->seek = -1;
p_sys->download.segment = p_sys->download.seek;
p_sys->download.seek = -1;
}
else if (client->segment < count)
client->segment++;
vlc_cond_signal(&client->wait);
vlc_mutex_unlock(&client->lock_wait);
else if (p_sys->download.segment < count)
p_sys->download.segment++;
vlc_cond_signal(&p_sys->download.wait);
vlc_mutex_unlock(&p_sys->download.lock_wait);
}
vlc_restorecancel(canc);
......@@ -1579,16 +1582,15 @@ static int Open(vlc_object_t *p_this)
((mtime_t)hls->duration * UINT64_C(1000000));
}
p_sys->thread->hls_stream = p_sys->hls_stream;
p_sys->thread->current = current;
p_sys->download.current = current;
p_sys->playback.current = current;
p_sys->thread->segment = p_sys->playback.segment;
p_sys->thread->seek = -1;
p_sys->download.segment = p_sys->playback.segment;
p_sys->download.seek = -1;
p_sys->playback.segment = 0; /* reset to first segment */
p_sys->thread->s = s;
vlc_mutex_init(&p_sys->thread->lock_wait);
vlc_cond_init(&p_sys->thread->wait);
vlc_mutex_init(&p_sys->download.lock_wait);
vlc_cond_init(&p_sys->download.wait);
if (vlc_thread_create(p_sys->thread, "HTTP Live Streaming client",
hls_Thread, VLC_THREAD_PRIORITY_INPUT))
......@@ -1618,15 +1620,15 @@ static void Close(vlc_object_t *p_this)
/* */
if (p_sys->thread)
{
vlc_mutex_lock(&p_sys->thread->lock_wait);
vlc_mutex_lock(&p_sys->download.lock_wait);
vlc_object_kill(p_sys->thread);
vlc_cond_signal(&p_sys->thread->wait);
vlc_mutex_unlock(&p_sys->thread->lock_wait);
vlc_cond_signal(&p_sys->download.wait);
vlc_mutex_unlock(&p_sys->download.lock_wait);
/* */
vlc_thread_join(p_sys->thread);
vlc_mutex_destroy(&p_sys->thread->lock_wait);
vlc_cond_destroy(&p_sys->thread->wait);
vlc_mutex_destroy(&p_sys->download.lock_wait);
vlc_cond_destroy(&p_sys->download.wait);
vlc_object_release(p_sys->thread);
}
......@@ -1689,9 +1691,9 @@ static segment_t *GetSegment(stream_t *s)
break;
}
vlc_mutex_lock(&p_sys->thread->lock_wait);
int i_segment = p_sys->thread->segment;
vlc_mutex_unlock(&p_sys->thread->lock_wait);
vlc_mutex_lock(&p_sys->download.lock_wait);
int i_segment = p_sys->download.segment;
vlc_mutex_unlock(&p_sys->download.lock_wait);
/* This segment is ready? */
if ((segment->data != NULL) &&
......@@ -1717,9 +1719,9 @@ static segment_t *GetSegment(stream_t *s)
check:
/* sanity check */
if (p_sys->thread->segment - p_sys->playback.segment == 0)
if (p_sys->download.segment - p_sys->playback.segment == 0)
msg_Err(s, "playback will stall");
else if (p_sys->thread->segment - p_sys->playback.segment < 3)
else if (p_sys->download.segment - p_sys->playback.segment < 3)
msg_Warn(s, "playback in danger of stalling");
return segment;
}
......@@ -1759,9 +1761,9 @@ static ssize_t hls_Read(stream_t *s, uint8_t *p_read, unsigned int i_read)
vlc_mutex_unlock(&segment->lock);
/* signal download thread */
vlc_mutex_lock(&p_sys->thread->lock_wait);
vlc_cond_signal(&p_sys->thread->wait);
vlc_mutex_unlock(&p_sys->thread->lock_wait);
vlc_mutex_lock(&p_sys->download.lock_wait);
vlc_cond_signal(&p_sys->download.wait);
vlc_mutex_unlock(&p_sys->download.lock_wait);
continue;
}
......@@ -1863,8 +1865,7 @@ static bool hls_MaySeek(stream_t *s)
{
stream_sys_t *p_sys = s->p_sys;
if ((p_sys->hls_stream == NULL) ||
(p_sys->thread == NULL))
if (p_sys->hls_stream == NULL)
return false;
hls_stream_t *hls = hls_Get(p_sys->hls_stream, p_sys->playback.current);
......@@ -1876,9 +1877,9 @@ static bool hls_MaySeek(stream_t *s)
int count = vlc_array_count(hls->segments);
vlc_mutex_unlock(&hls->lock);
vlc_mutex_lock(&p_sys->thread->lock_wait);
bool may_seek = (p_sys->thread->segment < (count - 2));
vlc_mutex_unlock(&p_sys->thread->lock_wait);
vlc_mutex_lock(&p_sys->download.lock_wait);
bool may_seek = (p_sys->download.segment < (count - 2));
vlc_mutex_unlock(&p_sys->download.lock_wait);
return may_seek;
}
return true;
......@@ -1974,30 +1975,27 @@ static int segment_Seek(stream_t *s, uint64_t pos)
vlc_mutex_unlock(&segment->lock);
/* start download at current playback segment */
if (p_sys->thread)
{
vlc_mutex_unlock(&hls->lock);
/* Wake up download thread */
vlc_mutex_lock(&p_sys->thread->lock_wait);
p_sys->thread->seek = p_sys->playback.segment;
vlc_cond_signal(&p_sys->thread->wait);
vlc_mutex_unlock(&p_sys->thread->lock_wait);
/* Wait for download to be finished */
vlc_mutex_lock(&p_sys->thread->lock_wait);
msg_Info(s, "seek to segment %d", p_sys->playback.segment);
while (((p_sys->thread->seek != -1) ||
(p_sys->thread->segment - p_sys->playback.segment < 3)) &&
(p_sys->thread->segment < (count - 6)))
{
vlc_cond_wait(&p_sys->thread->wait, &p_sys->thread->lock_wait);
if (!vlc_object_alive(s) || s->b_error) break;
}
vlc_mutex_unlock(&p_sys->thread->lock_wait);
vlc_mutex_unlock(&hls->lock);
return VLC_SUCCESS;
/* Wake up download thread */
vlc_mutex_lock(&p_sys->download.lock_wait);
p_sys->download.seek = p_sys->playback.segment;
vlc_cond_signal(&p_sys->download.wait);
vlc_mutex_unlock(&p_sys->download.lock_wait);
/* Wait for download to be finished */
vlc_mutex_lock(&p_sys->download.lock_wait);
msg_Info(s, "seek to segment %d", p_sys->playback.segment);
while (((p_sys->download.seek != -1) ||
(p_sys->download.segment - p_sys->playback.segment < 3)) &&
(p_sys->download.segment < (count - 6)))
{
vlc_cond_wait(&p_sys->download.wait, &p_sys->download.lock_wait);
if (!vlc_object_alive(s) || s->b_error) break;
}
vlc_mutex_unlock(&p_sys->download.lock_wait);
return VLC_SUCCESS;
}
vlc_mutex_unlock(&hls->lock);
......
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