/* GStreamer
* Copyright (C) 2006 David A. Schleef <ds@schleef.org>
*
* gstmultifilesrc.c:
*
* 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 details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-multifilesrc
* @see_also: #GstFileSrc
*
* Reads buffers from sequentially named files. If used together with an image
* decoder, one needs to use the #GstMultiFileSrc:caps property or a capsfilter
* to force to caps containing a framerate. Otherwise image decoders send EOS
* after the first picture. We also need a videorate element to set timestamps
* on all buffers after the first one in accordance with the framerate.
*
* File names are created by replacing "\%d" with the index using printf().
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch-1.0 multifilesrc location="img.%04d.png" index=0 caps="image/png,framerate=\(fraction\)12/1" ! \
* pngdec ! videoconvert ! videorate ! theoraenc ! oggmux ! \
* filesink location="images.ogg"
* ]| This pipeline creates a video file "images.ogg" by joining multiple PNG
* files named img.0000.png, img.0001.png, etc.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "gstmultifilesrc.h"
static GstFlowReturn gst_multi_file_src_create (GstPushSrc * src,
GstBuffer ** buffer);
static void gst_multi_file_src_dispose (GObject * object);
static void gst_multi_file_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_multi_file_src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstCaps *gst_multi_file_src_getcaps (GstBaseSrc * src, GstCaps * filter);
static gboolean gst_multi_file_src_query (GstBaseSrc * src, GstQuery * query);
static void gst_multi_file_src_uri_handler_init (gpointer g_iface,
gpointer iface_data);
static GstStaticPadTemplate gst_multi_file_src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
GST_DEBUG_CATEGORY_STATIC (gst_multi_file_src_debug);
#define GST_CAT_DEFAULT gst_multi_file_src_debug
enum
{
PROP_0,
PROP_LOCATION,
PROP_INDEX,
PROP_START_INDEX,
PROP_STOP_INDEX,
PROP_CAPS,
PROP_LOOP
};
#define DEFAULT_LOCATION "%05d"
#define DEFAULT_INDEX 0
#define gst_multi_file_src_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstMultiFileSrc, gst_multi_file_src, GST_TYPE_PUSH_SRC,
G_IMPLEMENT_INTERFACE (GST_TYPE_URI_HANDLER,
gst_multi_file_src_uri_handler_init));
static gboolean
is_seekable (GstBaseSrc * src)
{
GstMultiFileSrc *mfs = GST_MULTI_FILE_SRC (src);
if (mfs->fps_n != -1)
return TRUE;
return FALSE;
}
static gboolean
do_seek (GstBaseSrc * bsrc, GstSegment * segment)
{
gboolean reverse;
GstClockTime position;
GstMultiFileSrc *src;
src = GST_MULTI_FILE_SRC (bsrc);
segment->time = segment->start;
position = segment->position;
reverse = segment->rate < 0;
if (reverse) {
GST_FIXME_OBJECT (src, "Handle reverse playback");
return FALSE;
}
/* now move to the position indicated */
if (src->fps_n) {
src->index = gst_util_uint64_scale (position,
src->fps_n, src->fps_d * GST_SECOND);
} else {
src->index = 0;
GST_WARNING_OBJECT (src, "No FPS set, can not seek");
return FALSE;
}
return TRUE;
}
static void
gst_multi_file_src_class_init (GstMultiFileSrcClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
gobject_class->set_property = gst_multi_file_src_set_property;
gobject_class->get_property = gst_multi_file_src_get_property;
g_object_class_install_property (gobject_class, PROP_LOCATION,
g_param_spec_string ("location", "File Location",
"Pattern to create file names of input files. File names are "
"created by calling sprintf() with the pattern and the current "
"index.", DEFAULT_LOCATION,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_INDEX,
g_param_spec_int ("index", "File Index",
"Index to use with location property to create file names. The "
"index is incremented by one for each buffer read.",
0, INT_MAX, DEFAULT_INDEX,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_START_INDEX,
g_param_spec_int ("start-index", "Start Index",
"Start value of index. The initial value of index can be set "
"either by setting index or start-index. When the end of the loop "
"is reached, the index will be set to the value start-index.",
0, INT_MAX, DEFAULT_INDEX,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_STOP_INDEX,
g_param_spec_int ("stop-index", "Stop Index",
"Stop value of index. The special value -1 means no stop.",
-1, INT_MAX, DEFAULT_INDEX,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_CAPS,
g_param_spec_boxed ("caps", "Caps",
"Caps describing the format of the data.",
GST_TYPE_CAPS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_LOOP,
g_param_spec_boolean ("loop", "Loop",
"Whether to repeat from the beginning when all files have been read.",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gobject_class->dispose = gst_multi_file_src_dispose;
gstbasesrc_class->get_caps = gst_multi_file_src_getcaps;
gstbasesrc_class->query = gst_multi_file_src_query;
gstbasesrc_class->is_seekable = is_seekable;
gstbasesrc_class->do_seek = do_seek;
gstpushsrc_class->create = gst_multi_file_src_create;
GST_DEBUG_CATEGORY_INIT (gst_multi_file_src_debug, "multifilesrc", 0,
"multifilesrc element");
gst_element_class_add_static_pad_template (gstelement_class,
&gst_multi_file_src_pad_template);
gst_element_class_set_static_metadata (gstelement_class, "Multi-File Source",
"Source/File", "Read a sequentially named set of files into buffers",
"David Schleef <ds@schleef.org>");
}
static void
gst_multi_file_src_init (GstMultiFileSrc * multifilesrc)
{
multifilesrc->start_index = DEFAULT_INDEX;
multifilesrc->index = DEFAULT_INDEX;
multifilesrc->stop_index = -1;
multifilesrc->filename = g_strdup (DEFAULT_LOCATION);
multifilesrc->successful_read = FALSE;
multifilesrc->fps_n = multifilesrc->fps_d = -1;
}
static void
gst_multi_file_src_dispose (GObject * object)
{
GstMultiFileSrc *src = GST_MULTI_FILE_SRC (object);
g_free (src->filename);
src->filename = NULL;
if (src->caps)
gst_caps_unref (src->caps);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static GstCaps *
gst_multi_file_src_getcaps (GstBaseSrc * src, GstCaps * filter)
{
GstMultiFileSrc *multi_file_src = GST_MULTI_FILE_SRC (src);
GST_DEBUG_OBJECT (src, "returning %" GST_PTR_FORMAT, multi_file_src->caps);
if (multi_file_src->caps) {
if (filter)
return gst_caps_intersect_full (filter, multi_file_src->caps,
GST_CAPS_INTERSECT_FIRST);
else
return gst_caps_ref (multi_file_src->caps);
} else {
if (filter)
return gst_caps_ref (filter);
else
return gst_caps_new_any ();
}
}
static gboolean
gst_multi_file_src_query (GstBaseSrc * src, GstQuery * query)
{
gboolean res;
GstMultiFileSrc *mfsrc;
mfsrc = GST_MULTI_FILE_SRC (src);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
GstFormat format;
gst_query_parse_position (query, &format, NULL);
switch (format) {
case GST_FORMAT_BUFFERS:
case GST_FORMAT_DEFAULT:
gst_query_set_position (query, format,
mfsrc->index - mfsrc->start_index);
res = TRUE;
break;
default:
res = GST_BASE_SRC_CLASS (parent_class)->query (src, query);
break;
}
break;
}
default:
res = GST_BASE_SRC_CLASS (parent_class)->query (src, query);
break;
}
return res;
}
static gboolean
gst_multi_file_src_set_location (GstMultiFileSrc * src, const gchar * location)
{
g_free (src->filename);
if (location != NULL) {
src->filename = g_strdup (location);
} else {
src->filename = NULL;
}
return TRUE;
}
static void
gst_multi_file_src_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstMultiFileSrc *src = GST_MULTI_FILE_SRC (object);
switch (prop_id) {
case PROP_LOCATION:
gst_multi_file_src_set_location (src, g_value_get_string (value));
break;
case PROP_INDEX:
GST_OBJECT_LOCK (src);
/* index was really meant to be read-only, but for backwards-compatibility
* we set start_index to make it work as it used to */
if (!GST_OBJECT_FLAG_IS_SET (src, GST_BASE_SRC_FLAG_STARTED))
src->start_index = g_value_get_int (value);
else
src->index = g_value_get_int (value);
GST_OBJECT_UNLOCK (src);
break;
case PROP_START_INDEX:
src->start_index = g_value_get_int (value);
break;
case PROP_STOP_INDEX:
src->stop_index = g_value_get_int (value);
break;
case PROP_CAPS:
{
GstStructure *st = NULL;
const GstCaps *caps = gst_value_get_caps (value);
GstCaps *new_caps;
if (caps == NULL) {
new_caps = gst_caps_new_any ();
} else {
new_caps = gst_caps_copy (caps);
}
gst_caps_replace (&src->caps, new_caps);
gst_pad_set_caps (GST_BASE_SRC_PAD (src), new_caps);
if (new_caps && gst_caps_get_size (new_caps) == 1 &&
(st = gst_caps_get_structure (new_caps, 0))
&& gst_structure_get_fraction (st, "framerate", &src->fps_n,
&src->fps_d)) {
GST_INFO_OBJECT (src, "Seting framerate to %d/%d", src->fps_n,
src->fps_d);
} else {
src->fps_n = -1;
src->fps_d = -1;
}
}
break;
case PROP_LOOP:
src->loop = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_multi_file_src_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstMultiFileSrc *src = GST_MULTI_FILE_SRC (object);
switch (prop_id) {
case PROP_LOCATION:
g_value_set_string (value, src->filename);
break;
case PROP_INDEX:
g_value_set_int (value, src->index);
break;
case PROP_START_INDEX:
g_value_set_int (value, src->start_index);
break;
case PROP_STOP_INDEX:
g_value_set_int (value, src->stop_index);
break;
case PROP_CAPS:
gst_value_set_caps (value, src->caps);
break;
case PROP_LOOP:
g_value_set_boolean (value, src->loop);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gchar *
gst_multi_file_src_get_filename (GstMultiFileSrc * multifilesrc)
{
gchar *filename;
GST_DEBUG ("%d", multifilesrc->index);
filename = g_strdup_printf (multifilesrc->filename, multifilesrc->index);
return filename;
}
static GstFlowReturn
gst_multi_file_src_create (GstPushSrc * src, GstBuffer ** buffer)
{
GstMultiFileSrc *multifilesrc;
gsize size;
gchar *data;
gchar *filename;
GstBuffer *buf;
gboolean ret;
GError *error = NULL;
multifilesrc = GST_MULTI_FILE_SRC (src);
if (multifilesrc->index < multifilesrc->start_index) {
multifilesrc->index = multifilesrc->start_index;
}
if (multifilesrc->stop_index != -1 &&
multifilesrc->index > multifilesrc->stop_index) {
if (multifilesrc->loop)
multifilesrc->index = multifilesrc->start_index;
else
return GST_FLOW_EOS;
}
filename = gst_multi_file_src_get_filename (multifilesrc);
GST_DEBUG_OBJECT (multifilesrc, "reading from file \"%s\".", filename);
ret = g_file_get_contents (filename, &data, &size, &error);
if (!ret) {
if (multifilesrc->successful_read) {
/* If we've read at least one buffer successfully, not finding the
* next file is EOS. */
g_free (filename);
if (error != NULL)
g_error_free (error);
if (multifilesrc->loop) {
error = NULL;
multifilesrc->index = multifilesrc->start_index;
filename = gst_multi_file_src_get_filename (multifilesrc);
ret = g_file_get_contents (filename, &data, &size, &error);
if (!ret) {
g_free (filename);
if (error != NULL)
g_error_free (error);
return GST_FLOW_EOS;
}
} else {
return GST_FLOW_EOS;
}
} else {
goto handle_error;
}
}
multifilesrc->successful_read = TRUE;
multifilesrc->index++;
buf = gst_buffer_new ();
gst_buffer_append_memory (buf,
gst_memory_new_wrapped (0, data, size, 0, size, data, g_free));
GST_BUFFER_OFFSET (buf) = multifilesrc->offset;
GST_BUFFER_OFFSET_END (buf) = multifilesrc->offset + size;
multifilesrc->offset += size;
GST_DEBUG_OBJECT (multifilesrc, "read file \"%s\".", filename);
g_free (filename);
*buffer = buf;
return GST_FLOW_OK;
handle_error:
{
if (error != NULL) {
GST_ELEMENT_ERROR (multifilesrc, RESOURCE, READ,
("Error while reading from file \"%s\".", filename),
("%s", error->message));
g_error_free (error);
} else {
GST_ELEMENT_ERROR (multifilesrc, RESOURCE, READ,
("Error while reading from file \"%s\".", filename),
("%s", g_strerror (errno)));
}
g_free (filename);
return GST_FLOW_ERROR;
}
}
static GstURIType
gst_multi_file_src_uri_get_type (GType type)
{
return GST_URI_SRC;
}
static const gchar *const *
gst_multi_file_src_uri_get_protocols (GType type)
{
static const gchar *protocols[] = { "multifile", NULL };
return (const gchar * const *) protocols;
}
static gchar *
gst_multi_file_src_uri_get_uri (GstURIHandler * handler)
{
GstMultiFileSrc *src = GST_MULTI_FILE_SRC (handler);
gchar *ret;
GST_OBJECT_LOCK (src);
if (src->filename != NULL) {
GstUri *uri = gst_uri_new ("multifle", NULL, NULL, GST_URI_NO_PORT,
src->filename, NULL, NULL);
ret = gst_uri_to_string (uri);
gst_uri_unref (uri);
} else {
ret = NULL;
}
GST_OBJECT_UNLOCK (src);
return ret;
}
static gboolean
gst_multi_file_src_uri_set_uri (GstURIHandler * handler, const gchar * uri,
GError ** error)
{
GstMultiFileSrc *src = GST_MULTI_FILE_SRC (handler);
GstUri *gsturi;
gchar *path;
gsturi = gst_uri_from_string (uri);
if (gsturi == NULL)
goto invalid_uri;
/* This should get us the unescaped path */
path = gst_uri_get_path (gsturi);
if (path == NULL)
goto invalid_uri;
GST_OBJECT_LOCK (src);
gst_multi_file_src_set_location (src, path);
GST_OBJECT_UNLOCK (src);
g_free (path);
gst_uri_unref (gsturi);
return TRUE;
/* ERRORS */
invalid_uri:
{
GST_WARNING_OBJECT (src, "Invalid multifile URI '%s'", uri);
g_set_error (error, GST_URI_ERROR, GST_URI_ERROR_BAD_URI,
"Invalid multifile URI");
if (gsturi)
gst_uri_unref (gsturi);
return FALSE;
}
}
static void
gst_multi_file_src_uri_handler_init (gpointer g_iface, gpointer iface_data)
{
GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
iface->get_type = gst_multi_file_src_uri_get_type;
iface->get_protocols = gst_multi_file_src_uri_get_protocols;
iface->get_uri = gst_multi_file_src_uri_get_uri;
iface->set_uri = gst_multi_file_src_uri_set_uri;
}