gstreamer/gst/multifile/gstmultifilesink.c

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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
* 2006 Wim Taymans <wim@fluendo.com>
* 2006 David A. Schleef <ds@schleef.org>
*
* gstmultifilesink.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:element-multifilesink
* @see_also: #GstFileSrc
*
* Write incoming data to a series of sequentially-named files.
*
2010-04-08 15:05:46 +00:00
* The filename property should contain a string with a \%d placeholder that will
* be substituted with the index for each filename.
*
* If the #GstMultiFileSink:post-messages property is #TRUE, it sends an application
* message named
* <classname>&quot;GstMultiFileSink&quot;</classname> after writing each
* buffer.
*
* The message's structure contains these fields:
* <itemizedlist>
* <listitem>
* <para>
* #gchar *
* <classname>&quot;filename&quot;</classname>:
* the filename where the buffer was written.
* </para>
* </listitem>
* <listitem>
* <para>
* #gint
* <classname>&quot;index&quot;</classname>:
* the index of the buffer.
* </para>
* </listitem>
* <listitem>
* <para>
* #GstClockTime
* <classname>&quot;timestamp&quot;</classname>:
* the timestamp of the buffer.
* </para>
* </listitem>
* <listitem>
* <para>
* #GstClockTime
* <classname>&quot;stream-time&quot;</classname>:
* the stream time of the buffer.
* </para>
* </listitem>
* <listitem>
* <para>
* #GstClockTime
* <classname>&quot;running-time&quot;</classname>:
* the running_time of the buffer.
* </para>
* </listitem>
* <listitem>
* <para>
* #GstClockTime
* <classname>&quot;duration&quot;</classname>:
* the duration of the buffer.
* </para>
* </listitem>
* <listitem>
* <para>
* #guint64
* <classname>&quot;offset&quot;</classname>:
* the offset of the buffer that triggered the message.
* </para>
* </listitem>
* <listitem>
* <para>
* #guint64
* <classname>&quot;offset-end&quot;</classname>:
* the offset-end of the buffer that triggered the message.
* </para>
* </listitem>
* </itemizedlist>
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch audiotestsrc ! multifilesink
* gst-launch videotestsrc ! multifilesink post-messages=true filename="frame%d"
* ]|
* </refsect2>
*
* Last reviewed on 2009-09-11 (0.10.17)
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <gst/base/gstbasetransform.h>
#include <glib/gstdio.h>
#include "gstmultifilesink.h"
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
GST_DEBUG_CATEGORY_STATIC (gst_multi_file_sink_debug);
#define GST_CAT_DEFAULT gst_multi_file_sink_debug
#define DEFAULT_LOCATION "%05d"
#define DEFAULT_INDEX 0
#define DEFAULT_POST_MESSAGES FALSE
#define DEFAULT_NEXT_FILE GST_MULTI_FILE_SINK_NEXT_BUFFER
#define DEFAULT_MAX_FILES 0
enum
{
PROP_0,
PROP_LOCATION,
PROP_INDEX,
PROP_POST_MESSAGES,
PROP_NEXT_FILE,
PROP_MAX_FILES,
PROP_LAST
};
static void gst_multi_file_sink_finalize (GObject * object);
static void gst_multi_file_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_multi_file_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_multi_file_sink_stop (GstBaseSink * sink);
static GstFlowReturn gst_multi_file_sink_render (GstBaseSink * sink,
GstBuffer * buffer);
static gboolean gst_multi_file_sink_set_caps (GstBaseSink * sink,
GstCaps * caps);
static gboolean gst_multi_file_sink_open_next_file (GstMultiFileSink *
multifilesink);
static void gst_multi_file_sink_close_file (GstMultiFileSink * multifilesink,
GstBuffer * buffer);
static void gst_multi_file_sink_ensure_max_files (GstMultiFileSink *
multifilesink);
#define GST_TYPE_MULTI_FILE_SINK_NEXT (gst_multi_file_sink_next_get_type ())
static GType
gst_multi_file_sink_next_get_type (void)
{
static GType multi_file_sync_next_type = 0;
static const GEnumValue next_types[] = {
{GST_MULTI_FILE_SINK_NEXT_BUFFER, "New file for each buffer", "buffer"},
{GST_MULTI_FILE_SINK_NEXT_DISCONT, "New file after each discontinuity",
"discont"},
{GST_MULTI_FILE_SINK_NEXT_KEY_FRAME, "New file at each key frame "
"(Useful for MPEG-TS segmenting)", "key-frame"},
{0, NULL, NULL}
};
if (!multi_file_sync_next_type) {
multi_file_sync_next_type =
g_enum_register_static ("GstMultiFileSinkNext", next_types);
}
return multi_file_sync_next_type;
}
#define gst_multi_file_sink_parent_class parent_class
G_DEFINE_TYPE (GstMultiFileSink, gst_multi_file_sink, GST_TYPE_BASE_SINK);
static void
gst_multi_file_sink_class_init (GstMultiFileSinkClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
GstBaseSinkClass *gstbasesink_class = GST_BASE_SINK_CLASS (klass);
gobject_class->set_property = gst_multi_file_sink_set_property;
gobject_class->get_property = gst_multi_file_sink_get_property;
g_object_class_install_property (gobject_class, PROP_LOCATION,
g_param_spec_string ("location", "File Location",
"Location of the file to write", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_INDEX,
g_param_spec_int ("index", "Index",
"Index to use with location property to create file names. The "
"index is incremented by one for each buffer written.",
0, G_MAXINT, DEFAULT_INDEX,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstMultiFileSink:post-messages
*
* Post a message on the GstBus for each file.
*
* Since: 0.10.17
*/
g_object_class_install_property (gobject_class, PROP_POST_MESSAGES,
g_param_spec_boolean ("post-messages", "Post Messages",
"Post a message for each file with information of the buffer",
DEFAULT_POST_MESSAGES, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstMultiFileSink:next-file
*
* When to start a new file.
*
* Since: 0.10.17
*/
g_object_class_install_property (gobject_class, PROP_NEXT_FILE,
g_param_spec_enum ("next-file", "Next File",
"When to start a new file",
GST_TYPE_MULTI_FILE_SINK_NEXT, DEFAULT_NEXT_FILE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_STATIC_STRINGS));
/**
* GstMultiFileSink:max-files
*
* Maximum number of files to keep on disk. Once the maximum is reached, old
* files start to be deleted to make room for new ones.
*
* Since: 0.10.31
*/
g_object_class_install_property (gobject_class, PROP_MAX_FILES,
g_param_spec_uint ("max-files", "Max files",
"Maximum number of files to keep on disk. Once the maximum is reached,"
"old files start to be deleted to make room for new ones.",
0, G_MAXUINT, DEFAULT_MAX_FILES,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gobject_class->finalize = gst_multi_file_sink_finalize;
gstbasesink_class->get_times = NULL;
gstbasesink_class->stop = GST_DEBUG_FUNCPTR (gst_multi_file_sink_stop);
gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_multi_file_sink_render);
gstbasesink_class->set_caps =
GST_DEBUG_FUNCPTR (gst_multi_file_sink_set_caps);
GST_DEBUG_CATEGORY_INIT (gst_multi_file_sink_debug, "multifilesink", 0,
"multifilesink element");
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&sinktemplate));
gst_element_class_set_details_simple (gstelement_class, "Multi-File Sink",
"Sink/File",
"Write buffers to a sequentially named set of files",
"David Schleef <ds@schleef.org>");
}
static void
gst_multi_file_sink_init (GstMultiFileSink * multifilesink)
{
multifilesink->filename = g_strdup (DEFAULT_LOCATION);
multifilesink->index = DEFAULT_INDEX;
multifilesink->post_messages = DEFAULT_POST_MESSAGES;
multifilesink->max_files = DEFAULT_MAX_FILES;
multifilesink->files = NULL;
multifilesink->n_files = 0;
gst_base_sink_set_sync (GST_BASE_SINK (multifilesink), FALSE);
multifilesink->next_segment = GST_CLOCK_TIME_NONE;
}
static void
gst_multi_file_sink_finalize (GObject * object)
{
GstMultiFileSink *sink = GST_MULTI_FILE_SINK (object);
g_free (sink->filename);
g_slist_foreach (sink->files, (GFunc) g_free, NULL);
g_slist_free (sink->files);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gst_multi_file_sink_set_location (GstMultiFileSink * sink,
const gchar * location)
{
g_free (sink->filename);
/* FIXME: validate location to have just one %d */
sink->filename = g_strdup (location);
return TRUE;
}
static void
gst_multi_file_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstMultiFileSink *sink = GST_MULTI_FILE_SINK (object);
switch (prop_id) {
case PROP_LOCATION:
gst_multi_file_sink_set_location (sink, g_value_get_string (value));
break;
case PROP_INDEX:
sink->index = g_value_get_int (value);
break;
case PROP_POST_MESSAGES:
sink->post_messages = g_value_get_boolean (value);
break;
case PROP_NEXT_FILE:
sink->next_file = g_value_get_enum (value);
break;
case PROP_MAX_FILES:
sink->max_files = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_multi_file_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstMultiFileSink *sink = GST_MULTI_FILE_SINK (object);
switch (prop_id) {
case PROP_LOCATION:
g_value_set_string (value, sink->filename);
break;
case PROP_INDEX:
g_value_set_int (value, sink->index);
break;
case PROP_POST_MESSAGES:
g_value_set_boolean (value, sink->post_messages);
break;
case PROP_NEXT_FILE:
g_value_set_enum (value, sink->next_file);
break;
case PROP_MAX_FILES:
g_value_set_uint (value, sink->max_files);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_multi_file_sink_stop (GstBaseSink * sink)
{
GstMultiFileSink *multifilesink;
int i;
multifilesink = GST_MULTI_FILE_SINK (sink);
if (multifilesink->file != NULL) {
fclose (multifilesink->file);
multifilesink->file = NULL;
}
if (multifilesink->streamheaders) {
for (i = 0; i < multifilesink->n_streamheaders; i++) {
gst_buffer_unref (multifilesink->streamheaders[i]);
}
g_free (multifilesink->streamheaders);
multifilesink->streamheaders = NULL;
}
return TRUE;
}
static void
gst_multi_file_sink_post_message (GstMultiFileSink * multifilesink,
GstBuffer * buffer, const char *filename)
{
if (multifilesink->post_messages) {
GstClockTime duration, timestamp;
GstClockTime running_time, stream_time;
guint64 offset, offset_end;
GstStructure *s;
GstSegment *segment;
GstFormat format;
segment = &GST_BASE_SINK (multifilesink)->segment;
format = segment->format;
timestamp = GST_BUFFER_TIMESTAMP (buffer);
duration = GST_BUFFER_DURATION (buffer);
offset = GST_BUFFER_OFFSET (buffer);
offset_end = GST_BUFFER_OFFSET_END (buffer);
running_time = gst_segment_to_running_time (segment, format, timestamp);
stream_time = gst_segment_to_stream_time (segment, format, timestamp);
s = gst_structure_new ("GstMultiFileSink",
"filename", G_TYPE_STRING, filename,
"index", G_TYPE_INT, multifilesink->index,
"timestamp", G_TYPE_UINT64, timestamp,
"stream-time", G_TYPE_UINT64, stream_time,
"running-time", G_TYPE_UINT64, running_time,
"duration", G_TYPE_UINT64, duration,
"offset", G_TYPE_UINT64, offset,
"offset-end", G_TYPE_UINT64, offset_end, NULL);
gst_element_post_message (GST_ELEMENT_CAST (multifilesink),
gst_message_new_element (GST_OBJECT_CAST (multifilesink), s));
}
}
static GstFlowReturn
gst_multi_file_sink_render (GstBaseSink * sink, GstBuffer * buffer)
{
GstMultiFileSink *multifilesink;
gsize size;
guint8 *data;
gchar *filename;
gboolean ret;
GError *error = NULL;
data = gst_buffer_map (buffer, &size, NULL, GST_MAP_READ);
multifilesink = GST_MULTI_FILE_SINK (sink);
switch (multifilesink->next_file) {
case GST_MULTI_FILE_SINK_NEXT_BUFFER:
gst_multi_file_sink_ensure_max_files (multifilesink);
filename = g_strdup_printf (multifilesink->filename,
multifilesink->index);
ret = g_file_set_contents (filename, (char *) data, size, &error);
if (!ret)
goto write_error;
multifilesink->files = g_slist_append (multifilesink->files, filename);
multifilesink->n_files += 1;
gst_multi_file_sink_post_message (multifilesink, buffer, filename);
multifilesink->index++;
break;
case GST_MULTI_FILE_SINK_NEXT_DISCONT:
if (GST_BUFFER_IS_DISCONT (buffer)) {
if (multifilesink->file)
gst_multi_file_sink_close_file (multifilesink, buffer);
}
if (multifilesink->file == NULL) {
if (!gst_multi_file_sink_open_next_file (multifilesink))
goto stdio_write_error;
}
ret = fwrite (data, size, 1, multifilesink->file);
if (ret != 1)
goto stdio_write_error;
break;
case GST_MULTI_FILE_SINK_NEXT_KEY_FRAME:
if (multifilesink->next_segment == GST_CLOCK_TIME_NONE) {
if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) {
multifilesink->next_segment = GST_BUFFER_TIMESTAMP (buffer) +
10 * GST_SECOND;
}
}
if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer) &&
GST_BUFFER_TIMESTAMP (buffer) >= multifilesink->next_segment &&
!GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT)) {
if (multifilesink->file)
gst_multi_file_sink_close_file (multifilesink, buffer);
multifilesink->next_segment += 10 * GST_SECOND;
}
if (multifilesink->file == NULL) {
int i;
if (!gst_multi_file_sink_open_next_file (multifilesink))
goto stdio_write_error;
if (multifilesink->streamheaders) {
for (i = 0; i < multifilesink->n_streamheaders; i++) {
guint8 *sdata;
gsize ssize;
sdata = gst_buffer_map (multifilesink->streamheaders[i], &ssize,
NULL, GST_MAP_READ);
ret = fwrite (data, ssize, 1, multifilesink->file);
gst_buffer_unmap (multifilesink->streamheaders[i], sdata, ssize);
if (ret != 1)
goto stdio_write_error;
}
}
}
ret = fwrite (data, size, 1, multifilesink->file);
if (ret != 1)
goto stdio_write_error;
break;
default:
g_assert_not_reached ();
}
gst_buffer_unmap (buffer, data, size);
return GST_FLOW_OK;
/* ERRORS */
write_error:
{
switch (error->code) {
case G_FILE_ERROR_NOSPC:{
GST_ELEMENT_ERROR (multifilesink, RESOURCE, NO_SPACE_LEFT, (NULL),
(NULL));
break;
}
default:{
GST_ELEMENT_ERROR (multifilesink, RESOURCE, WRITE,
("Error while writing to file \"%s\".", filename),
("%s", g_strerror (errno)));
}
}
g_error_free (error);
g_free (filename);
gst_buffer_unmap (buffer, data, size);
return GST_FLOW_ERROR;
}
stdio_write_error:
{
GST_ELEMENT_ERROR (multifilesink, RESOURCE, WRITE,
("Error while writing to file."), (NULL));
gst_buffer_unmap (buffer, data, size);
return GST_FLOW_ERROR;
}
}
static gboolean
gst_multi_file_sink_set_caps (GstBaseSink * sink, GstCaps * caps)
{
GstMultiFileSink *multifilesink;
GstStructure *structure;
multifilesink = GST_MULTI_FILE_SINK (sink);
structure = gst_caps_get_structure (caps, 0);
if (structure) {
const GValue *value;
value = gst_structure_get_value (structure, "streamheader");
if (GST_VALUE_HOLDS_ARRAY (value)) {
int i;
if (multifilesink->streamheaders) {
for (i = 0; i < multifilesink->n_streamheaders; i++) {
gst_buffer_unref (multifilesink->streamheaders[i]);
}
g_free (multifilesink->streamheaders);
}
multifilesink->n_streamheaders = gst_value_array_get_size (value);
multifilesink->streamheaders =
g_malloc (sizeof (GstBuffer *) * multifilesink->n_streamheaders);
for (i = 0; i < multifilesink->n_streamheaders; i++) {
multifilesink->streamheaders[i] =
gst_buffer_ref (gst_value_get_buffer (gst_value_array_get_value
(value, i)));
}
}
}
return TRUE;
}
static void
gst_multi_file_sink_ensure_max_files (GstMultiFileSink * multifilesink)
{
char *filename;
while (multifilesink->max_files &&
multifilesink->n_files >= multifilesink->max_files) {
filename = multifilesink->files->data;
g_remove (filename);
multifilesink->files = g_slist_delete_link (multifilesink->files,
multifilesink->files);
multifilesink->n_files -= 1;
}
}
static gboolean
gst_multi_file_sink_open_next_file (GstMultiFileSink * multifilesink)
{
char *filename;
g_return_val_if_fail (multifilesink->file == NULL, FALSE);
gst_multi_file_sink_ensure_max_files (multifilesink);
filename = g_strdup_printf (multifilesink->filename, multifilesink->index);
multifilesink->file = g_fopen (filename, "wb");
if (multifilesink->file == NULL) {
g_free (filename);
return FALSE;
}
multifilesink->files = g_slist_append (multifilesink->files, filename);
multifilesink->n_files += 1;
return TRUE;
}
static void
gst_multi_file_sink_close_file (GstMultiFileSink * multifilesink,
GstBuffer * buffer)
{
char *filename;
fclose (multifilesink->file);
multifilesink->file = NULL;
if (buffer) {
filename = g_strdup_printf (multifilesink->filename, multifilesink->index);
gst_multi_file_sink_post_message (multifilesink, buffer, filename);
g_free (filename);
}
multifilesink->index++;
}