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ext/soup/gstsouphttpsrc.*: Add support for seeking to souphttpsrc. Fixes bug #502335.

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Original commit message from CVS:
Patch by: Wouter Cloetens <wouter at mind dot be>
* ext/soup/gstsouphttpsrc.c: (gst_souphttp_src_class_init),
(gst_souphttp_src_init), (gst_souphttp_src_create),
(gst_souphttp_src_is_seekable), (gst_souphttp_src_do_seek),
(soup_add_range_header), (soup_got_headers), (soup_got_chunk):
* ext/soup/gstsouphttpsrc.h:
Add support for seeking to souphttpsrc. Fixes bug #502335.
This commit is contained in:
Wouter Cloetens 2008-01-18 05:24:39 +00:00 committed by Sebastian Dröge
parent b0e6afa82e
commit 4632459428
3 changed files with 86 additions and 5 deletions
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11
ChangeLog
View file

@ -1,3 +1,14 @@
2008-01-18 Sebastian Dröge <slomo@circular-chaos.org>
Patch by: Wouter Cloetens <wouter at mind dot be>
* ext/soup/gstsouphttpsrc.c: (gst_souphttp_src_class_init),
(gst_souphttp_src_init), (gst_souphttp_src_create),
(gst_souphttp_src_is_seekable), (gst_souphttp_src_do_seek),
(soup_add_range_header), (soup_got_headers), (soup_got_chunk):
* ext/soup/gstsouphttpsrc.h:
Add support for seeking to souphttpsrc. Fixes bug #502335.
2008-01-17 Wim Taymans <wim.taymans@collabora.co.uk>
* gst/h264parse/gsth264parse.c: (gst_h264_parse_clear_queues),

78
ext/soup/gstsouphttpsrc.c
View file

@ -68,11 +68,14 @@ static gboolean gst_souphttp_src_start (GstBaseSrc * bsrc);
static gboolean gst_souphttp_src_stop (GstBaseSrc * bsrc);
static gboolean gst_souphttp_src_get_size (GstBaseSrc * bsrc, guint64 * size);
static gboolean gst_souphttp_src_is_seekable (GstBaseSrc * bsrc);
static gboolean gst_souphttp_src_do_seek (GstBaseSrc * bsrc,
GstSegment * segment);
static gboolean gst_souphttp_src_unlock (GstBaseSrc * bsrc);
static gboolean gst_souphttp_src_unlock_stop (GstBaseSrc * bsrc);
static gboolean gst_souphttp_src_set_location (GstSouphttpSrc * src,
const gchar * uri);
static gboolean soup_add_range_header (GstSouphttpSrc * src, guint64 offset);
static void soup_got_headers (SoupMessage * msg, GstSouphttpSrc * src);
static void soup_finished (SoupMessage * msg, GstSouphttpSrc * src);
@ -172,6 +175,7 @@ gst_souphttp_src_class_init (GstSouphttpSrcClass * klass)
gstbasesrc_class->get_size = GST_DEBUG_FUNCPTR (gst_souphttp_src_get_size);
gstbasesrc_class->is_seekable =
GST_DEBUG_FUNCPTR (gst_souphttp_src_is_seekable);
gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_souphttp_src_do_seek);
gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_souphttp_src_create);
@ -196,7 +200,9 @@ gst_souphttp_src_init (GstSouphttpSrc * src, GstSouphttpSrcClass * g_class)
src->msg = NULL;
src->interrupted = FALSE;
src->have_size = FALSE;
src->seekable = TRUE;
src->read_position = 0;
src->request_position = 0;
}
static void
@ -315,9 +321,17 @@ gst_souphttp_src_create (GstPushSrc * psrc, GstBuffer ** outbuf)
src = GST_SOUPHTTP_SRC (psrc);
src->ret = GST_FLOW_CUSTOM_ERROR;
src->outbuf = outbuf;
if (src->msg && (src->request_position != src->read_position)) {
if (src->msg->status == SOUP_MESSAGE_STATUS_IDLE) {
soup_add_range_header (src, src->request_position);
} else {
GST_DEBUG_OBJECT (src, "Seek from position %" G_GUINT64_FORMAT
" to %" G_GUINT64_FORMAT ": requeueing connection request",
src->read_position, src->request_position);
soup_session_cancel_message (src->session, src->msg);
src->msg = NULL;
}
}
if (!src->msg) {
src->msg = soup_message_new (SOUP_METHOD_GET, src->location);
if (!src->msg) {
@ -340,8 +354,11 @@ gst_souphttp_src_create (GstPushSrc * psrc, GstBuffer ** outbuf)
g_signal_connect (src->msg, "finished", G_CALLBACK (soup_finished), src);
g_signal_connect (src->msg, "got_chunk", G_CALLBACK (soup_got_chunk), src);
soup_message_set_flags (src->msg, SOUP_MESSAGE_OVERWRITE_CHUNKS);
soup_add_range_header (src, src->request_position);
}
src->ret = GST_FLOW_CUSTOM_ERROR;
src->outbuf = outbuf;
do {
if (src->interrupted) {
soup_session_cancel_message (src->session, src->msg);
@ -484,7 +501,44 @@ gst_souphttp_src_get_size (GstBaseSrc * bsrc, guint64 * size)
static gboolean
gst_souphttp_src_is_seekable (GstBaseSrc * bsrc)
{
return FALSE;
GstSouphttpSrc *src = GST_SOUPHTTP_SRC (bsrc);
return src->seekable;
}
static gboolean
gst_souphttp_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment)
{
GstSouphttpSrc *src = GST_SOUPHTTP_SRC (bsrc);
GST_DEBUG_OBJECT (src, "do_seek(%" G_GUINT64_FORMAT ")", segment->start);
if (src->read_position == segment->start)
return TRUE;
if (!src->seekable)
return FALSE;
/* Wait for create() to handle the jump in offset. */
src->request_position = segment->start;
return TRUE;
}
static gboolean
soup_add_range_header (GstSouphttpSrc * src, guint64 offset)
{
gchar buf[64];
gint rc;
soup_message_remove_header (src->msg->request_headers, "Range");
if (offset) {
rc = g_snprintf (buf, sizeof (buf), "bytes=%" G_GUINT64_FORMAT "-", offset);
if (rc > sizeof (buf) || rc < 0)
return FALSE;
soup_message_add_header (src->msg->request_headers, "Range", buf);
}
src->read_position = offset;
return TRUE;
}
static gboolean
@ -575,6 +629,16 @@ soup_got_headers (SoupMessage * msg, GstSouphttpSrc * src)
/* Handle HTTP errors. */
soup_parse_status (msg, src);
/* Check if Range header was respected. */
if (src->ret == GST_FLOW_CUSTOM_ERROR &&
src->read_position && msg->status_code != SOUP_STATUS_PARTIAL_CONTENT) {
src->seekable = FALSE;
GST_ELEMENT_ERROR (src, RESOURCE, READ,
("\"%s\": failed to seek; server does not accept Range HTTP header",
src->location), (NULL));
src->ret = GST_FLOW_ERROR;
}
}
/* Have body. Signal EOS. */
@ -610,6 +674,7 @@ static void
soup_got_chunk (SoupMessage * msg, GstSouphttpSrc * src)
{
GstBaseSrc *basesrc;
guint64 new_position;
if (G_UNLIKELY (msg != src->msg)) {
GST_DEBUG_OBJECT (src, "got chunk, but not for current message");
@ -625,7 +690,10 @@ soup_got_chunk (SoupMessage * msg, GstSouphttpSrc * src)
if (G_LIKELY (src->ret == GST_FLOW_OK)) {
memcpy (GST_BUFFER_DATA (*src->outbuf), msg->response.body,
msg->response.length);
src->read_position += msg->response.length;
new_position = src->read_position + msg->response.length;
if (G_LIKELY (src->request_position == src->read_position))
src->request_position = new_position;
src->read_position = new_position;
}
g_main_loop_quit (src->loop);

2
ext/soup/gstsouphttpsrc.h
View file

@ -53,6 +53,8 @@ struct _GstSouphttpSrc {
gboolean have_size; /* Received and parsed Content-Length header. */
guint64 content_size; /* Value of Content-Length header. */
guint64 read_position; /* Current position. */
gboolean seekable; /* FALSE if the server does not support Range. */
guint64 request_position; /* Seek to this position. */
/* Shoutcast/icecast metadata extraction handling. */
gboolean iradio_mode;