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gstreamer/ext/soup/gstsouphttpsrc.c
Tim-Philipp Müller 95f6e0dbe4 souphttpsrc: fix possible data corruption after seeking 
Consider a downstream element that may issue seeks in very short
succession (e.g. queue2), depending on the access pattern of
the downstream element (e.g. qtdemux with audio/video chunks
interleaved so that there's always a sizeable gap between the
current chunks for each stream). In this case, queue2 will maintain
two ranges, and even when it serves a chunk from memory, it will
switch ranges and make souphttpsrc seek to the end of the available
data for that range, assuming that that's where we'll want to
continue reading from next.

This may lead to the following seek request pattern:

 - source reading position A
 - seek to B
 - now reading position still A, requested_postion is B
 - streaming thread to be restarted to continue from B
 - seek to A, before streaming thread had time to do the seek
 - do_seek() now sees reading position == seek position and
   returns early.
 - however, requested position is still B from the earlier
   seek request
 - streaming thread starts up, sees that a seek to B is pending
   and requests data from B from the server, while the GstBaseSrc
   segment has of course been updated/reset to position A, which
   was the last seek request.
 - we will now send data for position B and pretend that's the
   data from position A (via the newsegment event, etc.)
 - this causes data corruption

Reproducible doing seek-emulated fast-forward/backward on 006648.
2012-05-16 08:31:15 +01:00

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/* GStreamer
* Copyright (C) 2007-2008 Wouter Cloetens <wouter@mind.be>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more
*/
/**
* SECTION:element-souphttpsrc
*
* This plugin reads data from a remote location specified by a URI.
* Supported protocols are 'http', 'https'.
*
* An HTTP proxy must be specified by its URL.
* If the "http_proxy" environment variable is set, its value is used.
* If built with libsoup's GNOME integration features, the GNOME proxy
* configuration will be used, or failing that, proxy autodetection.
* The #GstSoupHTTPSrc:proxy property can be used to override the default.
*
* In case the #GstSoupHTTPSrc:iradio-mode property is set and the location is
* an HTTP resource, souphttpsrc will send special Icecast HTTP headers to the
* server to request additional Icecast meta-information.
* If the server is not an Icecast server, it will behave as if the
* #GstSoupHTTPSrc:iradio-mode property were not set. If it is, souphttpsrc will
* output data with a media type of application/x-icy, in which case you will
* need to use the #ICYDemux element as follow-up element to extract the Icecast
* metadata and to determine the underlying media type.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch -v souphttpsrc location=https://some.server.org/index.html
* ! filesink location=/home/joe/server.html
* ]| The above pipeline reads a web page from a server using the HTTPS protocol
* and writes it to a local file.
* |[
* gst-launch -v souphttpsrc user-agent="FooPlayer 0.99 beta"
* automatic-redirect=false proxy=http://proxy.intranet.local:8080
* location=http://music.foobar.com/demo.mp3 ! mad ! audioconvert
* ! audioresample ! alsasink
* ]| The above pipeline will read and decode and play an mp3 file from a
* web server using the HTTP protocol. If the server sends redirects,
* the request fails instead of following the redirect. The specified
* HTTP proxy server is used. The User-Agent HTTP request header
* is set to a custom string instead of "GStreamer souphttpsrc."
* |[
* gst-launch -v souphttpsrc location=http://10.11.12.13/mjpeg
* do-timestamp=true ! multipartdemux
* ! image/jpeg,width=640,height=480 ! matroskamux
* ! filesink location=mjpeg.mkv
* ]| The above pipeline reads a motion JPEG stream from an IP camera
* using the HTTP protocol, encoded as mime/multipart image/jpeg
* parts, and writes a Matroska motion JPEG file. The width and
* height properties are set in the caps to provide the Matroska
* multiplexer with the information to set this in the header.
* Timestamps are set on the buffers as they arrive from the camera.
* These are used by the mime/multipart demultiplexer to emit timestamps
* on the JPEG-encoded video frame buffers. This allows the Matroska
* multiplexer to timestamp the frames in the resulting file.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h> /* atoi() */
#endif
#include <gst/gstelement.h>
#include <gst/gst-i18n-plugin.h>
#ifdef HAVE_LIBSOUP_GNOME
#include <libsoup/soup-gnome.h>
#else
#include <libsoup/soup.h>
#endif
#include "gstsouphttpsrc.h"
#include <gst/tag/tag.h>
GST_DEBUG_CATEGORY_STATIC (souphttpsrc_debug);
#define GST_CAT_DEFAULT souphttpsrc_debug
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
enum
{
PROP_0,
PROP_LOCATION,
PROP_IS_LIVE,
PROP_USER_AGENT,
PROP_AUTOMATIC_REDIRECT,
PROP_PROXY,
PROP_USER_ID,
PROP_USER_PW,
PROP_PROXY_ID,
PROP_PROXY_PW,
PROP_COOKIES,
PROP_TIMEOUT,
PROP_EXTRA_HEADERS
};
#define DEFAULT_USER_AGENT "GStreamer souphttpsrc "
static void gst_soup_http_src_uri_handler_init (gpointer g_iface,
gpointer iface_data);
static void gst_soup_http_src_finalize (GObject * gobject);
static void gst_soup_http_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_soup_http_src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstFlowReturn gst_soup_http_src_create (GstPushSrc * psrc,
GstBuffer ** outbuf);
static gboolean gst_soup_http_src_start (GstBaseSrc * bsrc);
static gboolean gst_soup_http_src_stop (GstBaseSrc * bsrc);
static gboolean gst_soup_http_src_get_size (GstBaseSrc * bsrc, guint64 * size);
static gboolean gst_soup_http_src_is_seekable (GstBaseSrc * bsrc);
static gboolean gst_soup_http_src_do_seek (GstBaseSrc * bsrc,
GstSegment * segment);
static gboolean gst_soup_http_src_query (GstBaseSrc * bsrc, GstQuery * query);
static gboolean gst_soup_http_src_unlock (GstBaseSrc * bsrc);
static gboolean gst_soup_http_src_unlock_stop (GstBaseSrc * bsrc);
static gboolean gst_soup_http_src_set_location (GstSoupHTTPSrc * src,
const gchar * uri, GError ** error);
static gboolean gst_soup_http_src_set_proxy (GstSoupHTTPSrc * src,
const gchar * uri);
static char *gst_soup_http_src_unicodify (const char *str);
static gboolean gst_soup_http_src_build_message (GstSoupHTTPSrc * src);
static void gst_soup_http_src_cancel_message (GstSoupHTTPSrc * src);
static void gst_soup_http_src_queue_message (GstSoupHTTPSrc * src);
static gboolean gst_soup_http_src_add_range_header (GstSoupHTTPSrc * src,
guint64 offset);
static void gst_soup_http_src_session_unpause_message (GstSoupHTTPSrc * src);
static void gst_soup_http_src_session_pause_message (GstSoupHTTPSrc * src);
static void gst_soup_http_src_session_close (GstSoupHTTPSrc * src);
static void gst_soup_http_src_parse_status (SoupMessage * msg,
GstSoupHTTPSrc * src);
static void gst_soup_http_src_chunk_free (gpointer gstbuf);
static SoupBuffer *gst_soup_http_src_chunk_allocator (SoupMessage * msg,
gsize max_len, gpointer user_data);
static void gst_soup_http_src_got_chunk_cb (SoupMessage * msg,
SoupBuffer * chunk, GstSoupHTTPSrc * src);
static void gst_soup_http_src_response_cb (SoupSession * session,
SoupMessage * msg, GstSoupHTTPSrc * src);
static void gst_soup_http_src_got_headers_cb (SoupMessage * msg,
GstSoupHTTPSrc * src);
static void gst_soup_http_src_got_body_cb (SoupMessage * msg,
GstSoupHTTPSrc * src);
static void gst_soup_http_src_finished_cb (SoupMessage * msg,
GstSoupHTTPSrc * src);
static void gst_soup_http_src_authenticate_cb (SoupSession * session,
SoupMessage * msg, SoupAuth * auth, gboolean retrying,
GstSoupHTTPSrc * src);
#define gst_soup_http_src_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstSoupHTTPSrc, gst_soup_http_src, GST_TYPE_PUSH_SRC,
G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER,
gst_soup_http_src_uri_handler_init));
static void
gst_soup_http_src_class_init (GstSoupHTTPSrcClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSrcClass *gstbasesrc_class;
GstPushSrcClass *gstpushsrc_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstbasesrc_class = (GstBaseSrcClass *) klass;
gstpushsrc_class = (GstPushSrcClass *) klass;
gobject_class->set_property = gst_soup_http_src_set_property;
gobject_class->get_property = gst_soup_http_src_get_property;
gobject_class->finalize = gst_soup_http_src_finalize;
g_object_class_install_property (gobject_class,
PROP_LOCATION,
g_param_spec_string ("location", "Location",
"Location to read from", "",
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_USER_AGENT,
g_param_spec_string ("user-agent", "User-Agent",
"Value of the User-Agent HTTP request header field",
DEFAULT_USER_AGENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_AUTOMATIC_REDIRECT,
g_param_spec_boolean ("automatic-redirect", "automatic-redirect",
"Automatically follow HTTP redirects (HTTP Status Code 3xx)",
TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_PROXY,
g_param_spec_string ("proxy", "Proxy",
"HTTP proxy server URI", "",
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_USER_ID,
g_param_spec_string ("user-id", "user-id",
"HTTP location URI user id for authentication", "",
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_USER_PW,
g_param_spec_string ("user-pw", "user-pw",
"HTTP location URI user password for authentication", "",
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_PROXY_ID,
g_param_spec_string ("proxy-id", "proxy-id",
"HTTP proxy URI user id for authentication", "",
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_PROXY_PW,
g_param_spec_string ("proxy-pw", "proxy-pw",
"HTTP proxy URI user password for authentication", "",
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_COOKIES,
g_param_spec_boxed ("cookies", "Cookies", "HTTP request cookies",
G_TYPE_STRV, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_IS_LIVE,
g_param_spec_boolean ("is-live", "is-live", "Act like a live source",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_TIMEOUT,
g_param_spec_uint ("timeout", "timeout",
"Value in seconds to timeout a blocking I/O (0 = No timeout).", 0,
3600, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_EXTRA_HEADERS,
g_param_spec_boxed ("extra-headers", "Extra Headers",
"Extra headers to append to the HTTP request",
GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&srctemplate));
gst_element_class_set_static_metadata (gstelement_class, "HTTP client source",
"Source/Network",
"Receive data as a client over the network via HTTP using SOUP",
"Wouter Cloetens <wouter@mind.be>");
gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_soup_http_src_start);
gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_soup_http_src_stop);
gstbasesrc_class->unlock = GST_DEBUG_FUNCPTR (gst_soup_http_src_unlock);
gstbasesrc_class->unlock_stop =
GST_DEBUG_FUNCPTR (gst_soup_http_src_unlock_stop);
gstbasesrc_class->get_size = GST_DEBUG_FUNCPTR (gst_soup_http_src_get_size);
gstbasesrc_class->is_seekable =
GST_DEBUG_FUNCPTR (gst_soup_http_src_is_seekable);
gstbasesrc_class->do_seek = GST_DEBUG_FUNCPTR (gst_soup_http_src_do_seek);
gstbasesrc_class->query = GST_DEBUG_FUNCPTR (gst_soup_http_src_query);
gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_soup_http_src_create);
GST_DEBUG_CATEGORY_INIT (souphttpsrc_debug, "souphttpsrc", 0,
"SOUP HTTP src");
}
static void
gst_soup_http_src_reset (GstSoupHTTPSrc * src)
{
src->interrupted = FALSE;
src->retry = FALSE;
src->have_size = FALSE;
src->seekable = FALSE;
src->read_position = 0;
src->request_position = 0;
src->content_size = 0;
gst_caps_replace (&src->src_caps, NULL);
g_free (src->iradio_name);
src->iradio_name = NULL;
g_free (src->iradio_genre);
src->iradio_genre = NULL;
g_free (src->iradio_url);
src->iradio_url = NULL;
}
static void
gst_soup_http_src_init (GstSoupHTTPSrc * src)
{
const gchar *proxy;
src->location = NULL;
src->automatic_redirect = TRUE;
src->user_agent = g_strdup (DEFAULT_USER_AGENT);
src->user_id = NULL;
src->user_pw = NULL;
src->proxy_id = NULL;
src->proxy_pw = NULL;
src->cookies = NULL;
src->loop = NULL;
src->context = NULL;
src->session = NULL;
src->msg = NULL;
proxy = g_getenv ("http_proxy");
if (proxy && !gst_soup_http_src_set_proxy (src, proxy)) {
GST_WARNING_OBJECT (src,
"The proxy in the http_proxy env var (\"%s\") cannot be parsed.",
proxy);
}
gst_soup_http_src_reset (src);
}
static void
gst_soup_http_src_finalize (GObject * gobject)
{
GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (gobject);
GST_DEBUG_OBJECT (src, "finalize");
g_free (src->location);
g_free (src->user_agent);
if (src->proxy != NULL) {
soup_uri_free (src->proxy);
}
g_free (src->user_id);
g_free (src->user_pw);
g_free (src->proxy_id);
g_free (src->proxy_pw);
g_strfreev (src->cookies);
G_OBJECT_CLASS (parent_class)->finalize (gobject);
}
static void
gst_soup_http_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (object);
switch (prop_id) {
case PROP_LOCATION:
{
const gchar *location;
location = g_value_get_string (value);
if (location == NULL) {
GST_WARNING ("location property cannot be NULL");
goto done;
}
if (!gst_soup_http_src_set_location (src, location, NULL)) {
GST_WARNING ("badly formatted location");
goto done;
}
break;
}
case PROP_USER_AGENT:
if (src->user_agent)
g_free (src->user_agent);
src->user_agent = g_value_dup_string (value);
break;
case PROP_AUTOMATIC_REDIRECT:
src->automatic_redirect = g_value_get_boolean (value);
break;
case PROP_PROXY:
{
const gchar *proxy;
proxy = g_value_get_string (value);
if (proxy == NULL) {
GST_WARNING ("proxy property cannot be NULL");
goto done;
}
if (!gst_soup_http_src_set_proxy (src, proxy)) {
GST_WARNING ("badly formatted proxy URI");
goto done;
}
break;
}
case PROP_COOKIES:
g_strfreev (src->cookies);
src->cookies = g_strdupv (g_value_get_boxed (value));
break;
case PROP_IS_LIVE:
gst_base_src_set_live (GST_BASE_SRC (src), g_value_get_boolean (value));
break;
case PROP_USER_ID:
if (src->user_id)
g_free (src->user_id);
src->user_id = g_value_dup_string (value);
break;
case PROP_USER_PW:
if (src->user_pw)
g_free (src->user_pw);
src->user_pw = g_value_dup_string (value);
break;
case PROP_PROXY_ID:
if (src->proxy_id)
g_free (src->proxy_id);
src->proxy_id = g_value_dup_string (value);
break;
case PROP_PROXY_PW:
if (src->proxy_pw)
g_free (src->proxy_pw);
src->proxy_pw = g_value_dup_string (value);
break;
case PROP_TIMEOUT:
src->timeout = g_value_get_uint (value);
break;
case PROP_EXTRA_HEADERS:{
const GstStructure *s = gst_value_get_structure (value);
if (src->extra_headers)
gst_structure_free (src->extra_headers);
src->extra_headers = s ? gst_structure_copy (s) : NULL;
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
done:
return;
}
static void
gst_soup_http_src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (object);
switch (prop_id) {
case PROP_LOCATION:
g_value_set_string (value, src->location);
break;
case PROP_USER_AGENT:
g_value_set_string (value, src->user_agent);
break;
case PROP_AUTOMATIC_REDIRECT:
g_value_set_boolean (value, src->automatic_redirect);
break;
case PROP_PROXY:
if (src->proxy == NULL)
g_value_set_static_string (value, "");
else {
char *proxy = soup_uri_to_string (src->proxy, FALSE);
g_value_set_string (value, proxy);
g_free (proxy);
}
break;
case PROP_COOKIES:
g_value_set_boxed (value, g_strdupv (src->cookies));
break;
case PROP_IS_LIVE:
g_value_set_boolean (value, gst_base_src_is_live (GST_BASE_SRC (src)));
break;
case PROP_USER_ID:
g_value_set_string (value, src->user_id);
break;
case PROP_USER_PW:
g_value_set_string (value, src->user_pw);
break;
case PROP_PROXY_ID:
g_value_set_string (value, src->proxy_id);
break;
case PROP_PROXY_PW:
g_value_set_string (value, src->proxy_pw);
break;
case PROP_TIMEOUT:
g_value_set_uint (value, src->timeout);
break;
case PROP_EXTRA_HEADERS:
gst_value_set_structure (value, src->extra_headers);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gchar *
gst_soup_http_src_unicodify (const gchar * str)
{
const gchar *env_vars[] = { "GST_ICY_TAG_ENCODING",
"GST_TAG_ENCODING", NULL
};
return gst_tag_freeform_string_to_utf8 (str, -1, env_vars);
}
static void
gst_soup_http_src_cancel_message (GstSoupHTTPSrc * src)
{
if (src->msg != NULL) {
src->session_io_status = GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_CANCELLED;
soup_session_cancel_message (src->session, src->msg, SOUP_STATUS_CANCELLED);
}
src->session_io_status = GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_IDLE;
src->msg = NULL;
}
static void
gst_soup_http_src_queue_message (GstSoupHTTPSrc * src)
{
soup_session_queue_message (src->session, src->msg,
(SoupSessionCallback) gst_soup_http_src_response_cb, src);
src->session_io_status = GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_QUEUED;
}
static gboolean
gst_soup_http_src_add_range_header (GstSoupHTTPSrc * src, guint64 offset)
{
gchar buf[64];
gint rc;
soup_message_headers_remove (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_headers_append (src->msg->request_headers, "Range", buf);
}
src->read_position = offset;
return TRUE;
}
static gboolean
_append_extra_header (GQuark field_id, const GValue * value, gpointer user_data)
{
GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (user_data);
const gchar *field_name = g_quark_to_string (field_id);
gchar *field_content = NULL;
if (G_VALUE_TYPE (value) == G_TYPE_STRING) {
field_content = g_value_dup_string (value);
} else {
GValue dest = { 0, };
g_value_init (&dest, G_TYPE_STRING);
if (g_value_transform (value, &dest)) {
field_content = g_value_dup_string (&dest);
}
}
if (field_content == NULL) {
GST_ERROR_OBJECT (src, "extra-headers field '%s' contains no value "
"or can't be converted to a string", field_name);
return FALSE;
}
GST_DEBUG_OBJECT (src, "Appending extra header: \"%s: %s\"", field_name,
field_content);
soup_message_headers_append (src->msg->request_headers, field_name,
field_content);
g_free (field_content);
return TRUE;
}
static gboolean
_append_extra_headers (GQuark field_id, const GValue * value,
gpointer user_data)
{
if (G_VALUE_TYPE (value) == GST_TYPE_ARRAY) {
guint n = gst_value_array_get_size (value);
guint i;
for (i = 0; i < n; i++) {
const GValue *v = gst_value_array_get_value (value, i);
if (!_append_extra_header (field_id, v, user_data))
return FALSE;
}
} else if (G_VALUE_TYPE (value) == GST_TYPE_LIST) {
guint n = gst_value_list_get_size (value);
guint i;
for (i = 0; i < n; i++) {
const GValue *v = gst_value_list_get_value (value, i);
if (!_append_extra_header (field_id, v, user_data))
return FALSE;
}
} else {
return _append_extra_header (field_id, value, user_data);
}
return TRUE;
}
static gboolean
gst_soup_http_src_add_extra_headers (GstSoupHTTPSrc * src)
{
if (!src->extra_headers)
return TRUE;
return gst_structure_foreach (src->extra_headers, _append_extra_headers, src);
}
static void
gst_soup_http_src_session_unpause_message (GstSoupHTTPSrc * src)
{
soup_session_unpause_message (src->session, src->msg);
}
static void
gst_soup_http_src_session_pause_message (GstSoupHTTPSrc * src)
{
soup_session_pause_message (src->session, src->msg);
}
static void
gst_soup_http_src_session_close (GstSoupHTTPSrc * src)
{
if (src->session) {
soup_session_abort (src->session); /* This unrefs the message. */
g_object_unref (src->session);
src->session = NULL;
src->msg = NULL;
}
}
static void
gst_soup_http_src_authenticate_cb (SoupSession * session, SoupMessage * msg,
SoupAuth * auth, gboolean retrying, GstSoupHTTPSrc * src)
{
if (!retrying) {
/* First time authentication only, if we fail and are called again with retry true fall through */
if (msg->status_code == SOUP_STATUS_UNAUTHORIZED) {
if (src->user_id && src->user_pw)
soup_auth_authenticate (auth, src->user_id, src->user_pw);
} else if (msg->status_code == SOUP_STATUS_PROXY_AUTHENTICATION_REQUIRED) {
if (src->proxy_id && src->proxy_pw)
soup_auth_authenticate (auth, src->proxy_id, src->proxy_pw);
}
}
}
static void
gst_soup_http_src_headers_foreach (const gchar * name, const gchar * val,
gpointer src)
{
GST_DEBUG_OBJECT (src, " %s: %s", name, val);
}
static void
gst_soup_http_src_got_headers_cb (SoupMessage * msg, GstSoupHTTPSrc * src)
{
const char *value;
GstTagList *tag_list;
GstBaseSrc *basesrc;
guint64 newsize;
GHashTable *params = NULL;
GST_DEBUG_OBJECT (src, "got headers:");
soup_message_headers_foreach (msg->response_headers,
gst_soup_http_src_headers_foreach, src);
if (msg->status_code == 407 && src->proxy_id && src->proxy_pw)
return;
if (src->automatic_redirect && SOUP_STATUS_IS_REDIRECTION (msg->status_code)) {
GST_DEBUG_OBJECT (src, "%u redirect to \"%s\"", msg->status_code,
soup_message_headers_get (msg->response_headers, "Location"));
return;
}
if (msg->status_code == SOUP_STATUS_UNAUTHORIZED)
return;
src->session_io_status = GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING;
/* Parse Content-Length. */
if (soup_message_headers_get_encoding (msg->response_headers) ==
SOUP_ENCODING_CONTENT_LENGTH) {
newsize = src->request_position +
soup_message_headers_get_content_length (msg->response_headers);
if (!src->have_size || (src->content_size != newsize)) {
src->content_size = newsize;
src->have_size = TRUE;
src->seekable = TRUE;
GST_DEBUG_OBJECT (src, "size = %" G_GUINT64_FORMAT, src->content_size);
basesrc = GST_BASE_SRC_CAST (src);
basesrc->segment.duration = src->content_size;
gst_element_post_message (GST_ELEMENT (src),
gst_message_new_duration (GST_OBJECT (src), GST_FORMAT_BYTES,
src->content_size));
}
}
/* Icecast stuff */
tag_list = gst_tag_list_new_empty ();
if ((value =
soup_message_headers_get (msg->response_headers,
"icy-metaint")) != NULL) {
gint icy_metaint = atoi (value);
GST_DEBUG_OBJECT (src, "icy-metaint: %s (parsed: %d)", value, icy_metaint);
if (icy_metaint > 0) {
if (src->src_caps)
gst_caps_unref (src->src_caps);
src->src_caps = gst_caps_new_simple ("application/x-icy",
"metadata-interval", G_TYPE_INT, icy_metaint, NULL);
gst_base_src_set_caps (GST_BASE_SRC (src), src->src_caps);
}
}
if ((value =
soup_message_headers_get_content_type (msg->response_headers,
&params)) != NULL) {
GST_DEBUG_OBJECT (src, "Content-Type: %s", value);
if (g_ascii_strcasecmp (value, "audio/L16") == 0) {
gint channels = 2;
gint rate = 44100;
char *param;
if (src->src_caps)
gst_caps_unref (src->src_caps);
param = g_hash_table_lookup (params, "channels");
if (param != NULL)
channels = atol (param);
param = g_hash_table_lookup (params, "rate");
if (param != NULL)
rate = atol (param);
src->src_caps = gst_caps_new_simple ("audio/x-raw",
"format", G_TYPE_STRING, "S16BE",
"layout", G_TYPE_STRING, "interleaved",
"channels", G_TYPE_INT, channels, "rate", G_TYPE_INT, rate, NULL);
gst_base_src_set_caps (GST_BASE_SRC (src), src->src_caps);
} else {
/* Set the Content-Type field on the caps */
if (src->src_caps) {
src->src_caps = gst_caps_make_writable (src->src_caps);
gst_caps_set_simple (src->src_caps, "content-type", G_TYPE_STRING,
value, NULL);
gst_base_src_set_caps (GST_BASE_SRC (src), src->src_caps);
}
}
}
if (params != NULL)
g_hash_table_destroy (params);
if ((value =
soup_message_headers_get (msg->response_headers,
"icy-name")) != NULL) {
g_free (src->iradio_name);
src->iradio_name = gst_soup_http_src_unicodify (value);
if (src->iradio_name) {
gst_tag_list_add (tag_list, GST_TAG_MERGE_REPLACE, GST_TAG_ORGANIZATION,
src->iradio_name, NULL);
}
}
if ((value =
soup_message_headers_get (msg->response_headers,
"icy-genre")) != NULL) {
g_free (src->iradio_genre);
src->iradio_genre = gst_soup_http_src_unicodify (value);
if (src->iradio_genre) {
gst_tag_list_add (tag_list, GST_TAG_MERGE_REPLACE, GST_TAG_GENRE,
src->iradio_genre, NULL);
}
}
if ((value = soup_message_headers_get (msg->response_headers, "icy-url"))
!= NULL) {
g_free (src->iradio_url);
src->iradio_url = gst_soup_http_src_unicodify (value);
if (src->iradio_url) {
gst_tag_list_add (tag_list, GST_TAG_MERGE_REPLACE, GST_TAG_LOCATION,
src->iradio_url, NULL);
}
}
if (!gst_tag_list_is_empty (tag_list)) {
GST_DEBUG_OBJECT (src,
"calling gst_element_found_tags with %" GST_PTR_FORMAT, tag_list);
gst_pad_push_event (GST_BASE_SRC_PAD (src), gst_event_new_tag (tag_list));
} else {
gst_tag_list_free (tag_list);
}
/* Handle HTTP errors. */
gst_soup_http_src_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, SEEK,
(_("Server does not support seeking.")),
("Server does not accept Range HTTP header, URL: %s", src->location));
src->ret = GST_FLOW_ERROR;
}
}
/* Have body. Signal EOS. */
static void
gst_soup_http_src_got_body_cb (SoupMessage * msg, GstSoupHTTPSrc * src)
{
if (G_UNLIKELY (msg != src->msg)) {
GST_DEBUG_OBJECT (src, "got body, but not for current message");
return;
}
if (G_UNLIKELY (src->session_io_status !=
GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING)) {
/* Probably a redirect. */
return;
}
GST_DEBUG_OBJECT (src, "got body");
src->ret = GST_FLOW_EOS;
if (src->loop)
g_main_loop_quit (src->loop);
gst_soup_http_src_session_pause_message (src);
}
/* Finished. Signal EOS. */
static void
gst_soup_http_src_finished_cb (SoupMessage * msg, GstSoupHTTPSrc * src)
{
if (G_UNLIKELY (msg != src->msg)) {
GST_DEBUG_OBJECT (src, "finished, but not for current message");
return;
}
GST_DEBUG_OBJECT (src, "finished");
src->ret = GST_FLOW_EOS;
if (src->session_io_status == GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_CANCELLED) {
/* gst_soup_http_src_cancel_message() triggered this; probably a seek
* that occurred in the QUEUEING state; i.e. before the connection setup
* was complete. Do nothing */
} else if (src->session_io_status ==
GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING && src->read_position > 0) {
/* The server disconnected while streaming. Reconnect and seeking to the
* last location. */
src->retry = TRUE;
src->ret = GST_FLOW_CUSTOM_ERROR;
} else if (G_UNLIKELY (src->session_io_status !=
GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING)) {
/* FIXME: reason_phrase is not translated, add proper error message */
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND,
("%s", msg->reason_phrase),
("libsoup status code %d", msg->status_code));
}
if (src->loop)
g_main_loop_quit (src->loop);
}
/* Buffer lifecycle management.
*
* gst_soup_http_src_create() runs the GMainLoop for this element, to let
* Soup take control.
* A GstBuffer is allocated in gst_soup_http_src_chunk_allocator() and
* associated with a SoupBuffer.
* Soup reads HTTP data in the GstBuffer's data buffer.
* The gst_soup_http_src_got_chunk_cb() is then called with the SoupBuffer.
* That sets gst_soup_http_src_create()'s return argument to the GstBuffer,
* increments its refcount (to 2), pauses the flow of data from the HTTP
* source to prevent gst_soup_http_src_got_chunk_cb() from being called
* again and breaks out of the GMainLoop.
* Because the SOUP_MESSAGE_OVERWRITE_CHUNKS flag is set, Soup frees the
* SoupBuffer and calls gst_soup_http_src_chunk_free(), which decrements the
* refcount (to 1).
* gst_soup_http_src_create() returns the GstBuffer. It will be freed by a
* downstream element.
* If Soup fails to read HTTP data, it does not call
* gst_soup_http_src_got_chunk_cb(), but still frees the SoupBuffer and
* calls gst_soup_http_src_chunk_free(), which decrements the GstBuffer's
* refcount to 0, freeing it.
*/
typedef struct
{
GstBuffer *buffer;
GstMapInfo map;
} SoupGstChunk;
static void
gst_soup_http_src_chunk_free (gpointer user_data)
{
SoupGstChunk *chunk = (SoupGstChunk *) user_data;
gst_buffer_unmap (chunk->buffer, &chunk->map);
gst_buffer_unref (chunk->buffer);
g_slice_free (SoupGstChunk, chunk);
}
static SoupBuffer *
gst_soup_http_src_chunk_allocator (SoupMessage * msg, gsize max_len,
gpointer user_data)
{
GstSoupHTTPSrc *src = (GstSoupHTTPSrc *) user_data;
GstBaseSrc *basesrc = GST_BASE_SRC_CAST (src);
GstBuffer *gstbuf;
SoupBuffer *soupbuf;
gsize length;
GstFlowReturn rc;
SoupGstChunk *chunk;
if (max_len)
length = MIN (basesrc->blocksize, max_len);
else
length = basesrc->blocksize;
GST_DEBUG_OBJECT (src, "alloc %" G_GSIZE_FORMAT " bytes <= %" G_GSIZE_FORMAT,
length, max_len);
rc = GST_BASE_SRC_CLASS (parent_class)->alloc (basesrc, -1, length, &gstbuf);
if (G_UNLIKELY (rc != GST_FLOW_OK)) {
/* Failed to allocate buffer. Stall SoupSession and return error code
* to create(). */
src->ret = rc;
g_main_loop_quit (src->loop);
return NULL;
}
chunk = g_slice_new0 (SoupGstChunk);
chunk->buffer = gstbuf;
gst_buffer_map (gstbuf, &chunk->map, GST_MAP_READWRITE);
soupbuf = soup_buffer_new_with_owner (chunk->map.data, chunk->map.size,
chunk, gst_soup_http_src_chunk_free);
return soupbuf;
}
static void
gst_soup_http_src_got_chunk_cb (SoupMessage * msg, SoupBuffer * chunk,
GstSoupHTTPSrc * src)
{
GstBaseSrc *basesrc;
guint64 new_position;
SoupGstChunk *gchunk;
if (G_UNLIKELY (msg != src->msg)) {
GST_DEBUG_OBJECT (src, "got chunk, but not for current message");
return;
}
if (G_UNLIKELY (src->session_io_status !=
GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING)) {
/* Probably a redirect. */
return;
}
basesrc = GST_BASE_SRC_CAST (src);
GST_DEBUG_OBJECT (src, "got chunk of %" G_GSIZE_FORMAT " bytes",
chunk->length);
/* Extract the GstBuffer from the SoupBuffer and set its fields. */
gchunk = (SoupGstChunk *) soup_buffer_get_owner (chunk);
*src->outbuf = gchunk->buffer;
gst_buffer_resize (*src->outbuf, 0, chunk->length);
GST_BUFFER_OFFSET (*src->outbuf) = basesrc->segment.position;
gst_buffer_ref (*src->outbuf);
new_position = src->read_position + chunk->length;
if (G_LIKELY (src->request_position == src->read_position))
src->request_position = new_position;
src->read_position = new_position;
src->ret = GST_FLOW_OK;
g_main_loop_quit (src->loop);
gst_soup_http_src_session_pause_message (src);
}
static void
gst_soup_http_src_response_cb (SoupSession * session, SoupMessage * msg,
GstSoupHTTPSrc * src)
{
if (G_UNLIKELY (msg != src->msg)) {
GST_DEBUG_OBJECT (src, "got response %d: %s, but not for current message",
msg->status_code, msg->reason_phrase);
return;
}
if (G_UNLIKELY (src->session_io_status !=
GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING)
&& SOUP_STATUS_IS_REDIRECTION (msg->status_code)) {
/* Ignore redirections. */
return;
}
GST_DEBUG_OBJECT (src, "got response %d: %s", msg->status_code,
msg->reason_phrase);
if (src->session_io_status == GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING &&
src->read_position > 0) {
/* The server disconnected while streaming. Reconnect and seeking to the
* last location. */
src->retry = TRUE;
} else
gst_soup_http_src_parse_status (msg, src);
/* The session's SoupMessage object expires after this callback returns. */
src->msg = NULL;
g_main_loop_quit (src->loop);
}
#define SOUP_HTTP_SRC_ERROR(src,soup_msg,cat,code,error_message) \
GST_ELEMENT_ERROR ((src), cat, code, ("%s", error_message), \
("%s (%d), URL: %s", (soup_msg)->reason_phrase, \
(soup_msg)->status_code, (src)->location));
static void
gst_soup_http_src_parse_status (SoupMessage * msg, GstSoupHTTPSrc * src)
{
if (SOUP_STATUS_IS_TRANSPORT_ERROR (msg->status_code)) {
switch (msg->status_code) {
case SOUP_STATUS_CANT_RESOLVE:
case SOUP_STATUS_CANT_RESOLVE_PROXY:
SOUP_HTTP_SRC_ERROR (src, msg, RESOURCE, NOT_FOUND,
_("Could not resolve server name."));
src->ret = GST_FLOW_ERROR;
break;
case SOUP_STATUS_CANT_CONNECT:
case SOUP_STATUS_CANT_CONNECT_PROXY:
SOUP_HTTP_SRC_ERROR (src, msg, RESOURCE, OPEN_READ,
_("Could not establish connection to server."));
src->ret = GST_FLOW_ERROR;
break;
case SOUP_STATUS_SSL_FAILED:
SOUP_HTTP_SRC_ERROR (src, msg, RESOURCE, OPEN_READ,
_("Secure connection setup failed."));
src->ret = GST_FLOW_ERROR;
break;
case SOUP_STATUS_IO_ERROR:
SOUP_HTTP_SRC_ERROR (src, msg, RESOURCE, READ,
_("A network error occured, or the server closed the connection "
"unexpectedly."));
src->ret = GST_FLOW_ERROR;
break;
case SOUP_STATUS_MALFORMED:
SOUP_HTTP_SRC_ERROR (src, msg, RESOURCE, READ,
_("Server sent bad data."));
src->ret = GST_FLOW_ERROR;
break;
case SOUP_STATUS_CANCELLED:
/* No error message when interrupted by program. */
break;
}
} else if (SOUP_STATUS_IS_CLIENT_ERROR (msg->status_code) ||
SOUP_STATUS_IS_REDIRECTION (msg->status_code) ||
SOUP_STATUS_IS_SERVER_ERROR (msg->status_code)) {
/* Report HTTP error. */
/* FIXME: reason_phrase is not translated and not suitable for user
* error dialog according to libsoup documentation.
* FIXME: error code (OPEN_READ vs. READ) should depend on http status? */
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
("%s", msg->reason_phrase),
("%s (%d), URL: %s", msg->reason_phrase, msg->status_code,
src->location));
src->ret = GST_FLOW_ERROR;
}
}
static gboolean
gst_soup_http_src_build_message (GstSoupHTTPSrc * src)
{
src->msg = soup_message_new (SOUP_METHOD_GET, src->location);
if (!src->msg) {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
("Error parsing URL."), ("URL: %s", src->location));
return FALSE;
}
src->session_io_status = GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_IDLE;
soup_message_headers_append (src->msg->request_headers, "Connection",
"close");
soup_message_headers_append (src->msg->request_headers, "icy-metadata", "1");
if (src->cookies) {
gchar **cookie;
for (cookie = src->cookies; *cookie != NULL; cookie++) {
soup_message_headers_append (src->msg->request_headers, "Cookie",
*cookie);
}
}
soup_message_headers_append (src->msg->request_headers,
"transferMode.dlna.org", "Streaming");
src->retry = FALSE;
g_signal_connect (src->msg, "got_headers",
G_CALLBACK (gst_soup_http_src_got_headers_cb), src);
g_signal_connect (src->msg, "got_body",
G_CALLBACK (gst_soup_http_src_got_body_cb), src);
g_signal_connect (src->msg, "finished",
G_CALLBACK (gst_soup_http_src_finished_cb), src);
g_signal_connect (src->msg, "got_chunk",
G_CALLBACK (gst_soup_http_src_got_chunk_cb), src);
soup_message_set_flags (src->msg, SOUP_MESSAGE_OVERWRITE_CHUNKS |
(src->automatic_redirect ? 0 : SOUP_MESSAGE_NO_REDIRECT));
soup_message_set_chunk_allocator (src->msg,
gst_soup_http_src_chunk_allocator, src, NULL);
gst_soup_http_src_add_range_header (src, src->request_position);
gst_soup_http_src_add_extra_headers (src);
GST_DEBUG_OBJECT (src, "request headers:");
soup_message_headers_foreach (src->msg->request_headers,
gst_soup_http_src_headers_foreach, src);
return TRUE;
}
static GstFlowReturn
gst_soup_http_src_create (GstPushSrc * psrc, GstBuffer ** outbuf)
{
GstSoupHTTPSrc *src;
src = GST_SOUP_HTTP_SRC (psrc);
if (src->msg && (src->request_position != src->read_position)) {
if (src->content_size != 0 && src->request_position >= src->content_size) {
GST_WARNING_OBJECT (src, "Seeking behind the end of file -- EOS");
return GST_FLOW_EOS;
} else if (src->session_io_status ==
GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_IDLE) {
gst_soup_http_src_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);
gst_soup_http_src_cancel_message (src);
}
}
if (!src->msg)
if (!gst_soup_http_src_build_message (src))
return GST_FLOW_ERROR;
src->ret = GST_FLOW_CUSTOM_ERROR;
src->outbuf = outbuf;
do {
if (src->interrupted) {
GST_DEBUG_OBJECT (src, "interrupted");
break;
}
if (src->retry) {
GST_DEBUG_OBJECT (src, "Reconnecting");
if (!gst_soup_http_src_build_message (src))
return GST_FLOW_ERROR;
src->retry = FALSE;
continue;
}
if (!src->msg) {
GST_DEBUG_OBJECT (src, "EOS reached");
break;
}
switch (src->session_io_status) {
case GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_IDLE:
GST_DEBUG_OBJECT (src, "Queueing connection request");
gst_soup_http_src_queue_message (src);
break;
case GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_QUEUED:
break;
case GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_RUNNING:
gst_soup_http_src_session_unpause_message (src);
break;
case GST_SOUP_HTTP_SRC_SESSION_IO_STATUS_CANCELLED:
/* Impossible. */
break;
}
if (src->ret == GST_FLOW_CUSTOM_ERROR)
g_main_loop_run (src->loop);
} while (src->ret == GST_FLOW_CUSTOM_ERROR);
if (src->ret == GST_FLOW_CUSTOM_ERROR)
src->ret = GST_FLOW_EOS;
return src->ret;
}
static gboolean
gst_soup_http_src_start (GstBaseSrc * bsrc)
{
GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (bsrc);
GST_DEBUG_OBJECT (src, "start(\"%s\")", src->location);
if (!src->location) {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (_("No URL set.")),
("Missing location property"));
return FALSE;
}
src->context = g_main_context_new ();
src->loop = g_main_loop_new (src->context, TRUE);
if (!src->loop) {
GST_ELEMENT_ERROR (src, LIBRARY, INIT,
(NULL), ("Failed to start GMainLoop"));
g_main_context_unref (src->context);
return FALSE;
}
if (src->proxy == NULL) {
src->session =
soup_session_async_new_with_options (SOUP_SESSION_ASYNC_CONTEXT,
src->context, SOUP_SESSION_USER_AGENT, src->user_agent,
SOUP_SESSION_TIMEOUT, src->timeout,
#ifdef HAVE_LIBSOUP_GNOME
SOUP_SESSION_ADD_FEATURE_BY_TYPE, SOUP_TYPE_PROXY_RESOLVER_GNOME,
#endif
NULL);
} else {
src->session =
soup_session_async_new_with_options (SOUP_SESSION_ASYNC_CONTEXT,
src->context, SOUP_SESSION_PROXY_URI, src->proxy,
SOUP_SESSION_TIMEOUT, src->timeout,
SOUP_SESSION_USER_AGENT, src->user_agent, NULL);
}
if (!src->session) {
GST_ELEMENT_ERROR (src, LIBRARY, INIT,
(NULL), ("Failed to create async session"));
return FALSE;
}
g_signal_connect (src->session, "authenticate",
G_CALLBACK (gst_soup_http_src_authenticate_cb), src);
return TRUE;
}
static gboolean
gst_soup_http_src_stop (GstBaseSrc * bsrc)
{
GstSoupHTTPSrc *src;
src = GST_SOUP_HTTP_SRC (bsrc);
GST_DEBUG_OBJECT (src, "stop()");
gst_soup_http_src_session_close (src);
if (src->loop) {
g_main_loop_unref (src->loop);
g_main_context_unref (src->context);
src->loop = NULL;
src->context = NULL;
}
if (src->extra_headers) {
gst_structure_free (src->extra_headers);
src->extra_headers = NULL;
}
gst_soup_http_src_reset (src);
return TRUE;
}
/* Interrupt a blocking request. */
static gboolean
gst_soup_http_src_unlock (GstBaseSrc * bsrc)
{
GstSoupHTTPSrc *src;
src = GST_SOUP_HTTP_SRC (bsrc);
GST_DEBUG_OBJECT (src, "unlock()");
src->interrupted = TRUE;
if (src->loop)
g_main_loop_quit (src->loop);
return TRUE;
}
/* Interrupt interrupt. */
static gboolean
gst_soup_http_src_unlock_stop (GstBaseSrc * bsrc)
{
GstSoupHTTPSrc *src;
src = GST_SOUP_HTTP_SRC (bsrc);
GST_DEBUG_OBJECT (src, "unlock_stop()");
src->interrupted = FALSE;
return TRUE;
}
static gboolean
gst_soup_http_src_get_size (GstBaseSrc * bsrc, guint64 * size)
{
GstSoupHTTPSrc *src;
src = GST_SOUP_HTTP_SRC (bsrc);
if (src->have_size) {
GST_DEBUG_OBJECT (src, "get_size() = %" G_GUINT64_FORMAT,
src->content_size);
*size = src->content_size;
return TRUE;
}
GST_DEBUG_OBJECT (src, "get_size() = FALSE");
return FALSE;
}
static gboolean
gst_soup_http_src_is_seekable (GstBaseSrc * bsrc)
{
GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (bsrc);
return src->seekable;
}
static gboolean
gst_soup_http_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment)
{
GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (bsrc);
GST_DEBUG_OBJECT (src, "do_seek(%" G_GUINT64_FORMAT ")", segment->start);
if (src->read_position == segment->start &&
src->request_position == src->read_position) {
GST_DEBUG_OBJECT (src, "Seek to current read position and no seek pending");
return TRUE;
}
if (!src->seekable) {
GST_WARNING_OBJECT (src, "Not seekable");
return FALSE;
}
if (segment->rate < 0.0 || segment->format != GST_FORMAT_BYTES) {
GST_WARNING_OBJECT (src, "Invalid seek segment");
return FALSE;
}
if (src->content_size != 0 && segment->start >= src->content_size) {
GST_WARNING_OBJECT (src, "Seeking behind end of file, will go to EOS soon");
}
/* Wait for create() to handle the jump in offset. */
src->request_position = segment->start;
return TRUE;
}
static gboolean
gst_soup_http_src_query (GstBaseSrc * bsrc, GstQuery * query)
{
GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (bsrc);
gboolean ret;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_URI:
gst_query_set_uri (query, src->location);
ret = TRUE;
break;
default:
ret = FALSE;
break;
}
if (!ret)
ret = GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query);
return ret;
}
static gboolean
gst_soup_http_src_set_location (GstSoupHTTPSrc * src, const gchar * uri,
GError ** error)
{
const char *alt_schemes[] = { "icy://", "icyx://" };
guint i;
if (src->location) {
g_free (src->location);
src->location = NULL;
}
if (uri == NULL)
return FALSE;
for (i = 0; i < G_N_ELEMENTS (alt_schemes); i++) {
if (g_str_has_prefix (uri, alt_schemes[i])) {
src->location =
g_strdup_printf ("http://%s", uri + strlen (alt_schemes[i]));
return TRUE;
}
}
src->location = g_strdup (uri);
return TRUE;
}
static gboolean
gst_soup_http_src_set_proxy (GstSoupHTTPSrc * src, const gchar * uri)
{
if (src->proxy) {
soup_uri_free (src->proxy);
src->proxy = NULL;
}
if (g_str_has_prefix (uri, "http://")) {
src->proxy = soup_uri_new (uri);
} else {
gchar *new_uri = g_strconcat ("http://", uri, NULL);
src->proxy = soup_uri_new (new_uri);
g_free (new_uri);
}
return TRUE;
}
static guint
gst_soup_http_src_uri_get_type (GType type)
{
return GST_URI_SRC;
}
static const gchar *const *
gst_soup_http_src_uri_get_protocols (GType type)
{
static const gchar *protocols[] = { "http", "https", "icy", "icyx", NULL };
return protocols;
}
static gchar *
gst_soup_http_src_uri_get_uri (GstURIHandler * handler)
{
GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (handler);
/* FIXME: make thread-safe */
return g_strdup (src->location);
}
static gboolean
gst_soup_http_src_uri_set_uri (GstURIHandler * handler, const gchar * uri,
GError ** error)
{
GstSoupHTTPSrc *src = GST_SOUP_HTTP_SRC (handler);
return gst_soup_http_src_set_location (src, uri, error);
}
static void
gst_soup_http_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
{
GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
iface->get_type = gst_soup_http_src_uri_get_type;
iface->get_protocols = gst_soup_http_src_uri_get_protocols;
iface->get_uri = gst_soup_http_src_uri_get_uri;
iface->set_uri = gst_soup_http_src_uri_set_uri;
}
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