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gstreamer/subprojects/gst-plugins-good/gst/multifile/gstmultifilesink.c
Sebastian Dröge dac82a8932 multifilesink: Make minimum distance between keyframes in next-file=key-frame mode configurable 
Previously this was hardcoded to 10s, which is not necessarily the
desired behaviour.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1292>
2021-11-02 20:21:10 +00:00

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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>
* 2011 Collabora Ltd. <tim.muller@collabora.co.uk>
* 2015 Tim-Philipp Müller <tim@centricular.com>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-multifilesink
* @title: multifilesink
* @see_also: #GstFileSrc
*
* Write incoming data to a series of sequentially-named files.
*
* This element is usually used with data where each buffer is an
* independent unit of data in its own right (e.g. raw video buffers or
* encoded JPEG or PNG images) or with streamable container formats such
* as MPEG-TS or MPEG-PS.
*
* It is not possible to use this element to create independently playable
* mp4 files, use the splitmuxsink element for that instead.
*
* 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 `GstMultiFileSink` after writing each buffer.
*
* The message's structure contains these fields:
*
* * #gchararray `filename`: the filename where the buffer was written.
* * #gint `index`: index of the buffer.
* * #GstClockTime `timestamp`: the timestamp of the buffer.
* * #GstClockTime `stream-time`: the stream time of the buffer.
* * #GstClockTime running-time`: the running_time of the buffer.
* * #GstClockTime `duration`: the duration of the buffer.
* * #guint64 `offset`: the offset of the buffer that triggered the message.
* * #guint64 `offset-end`: the offset-end of the buffer that triggered the message.
*
* ## Example launch line
* |[
* gst-launch-1.0 audiotestsrc ! multifilesink
* gst-launch-1.0 videotestsrc ! multifilesink post-messages=true location="frame%d"
* ]|
*
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <gst/base/gstbasetransform.h>
#include <gst/video/video.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
#define DEFAULT_MAX_FILE_SIZE G_GUINT64_CONSTANT(2*1024*1024*1024)
#define DEFAULT_MAX_FILE_DURATION GST_CLOCK_TIME_NONE
#define DEFAULT_AGGREGATE_GOPS FALSE
#define DEFAULT_MIN_KEYFRAME_DISTANCE (10 * GST_SECOND)
enum
{
PROP_0,
PROP_LOCATION,
PROP_INDEX,
PROP_POST_MESSAGES,
PROP_NEXT_FILE,
PROP_MAX_FILES,
PROP_MAX_FILE_SIZE,
PROP_MAX_FILE_DURATION,
PROP_AGGREGATE_GOPS,
PROP_MIN_KEYFRAME_DISTANCE
};
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_start (GstBaseSink * bsink);
static gboolean gst_multi_file_sink_stop (GstBaseSink * sink);
static GstFlowReturn gst_multi_file_sink_render (GstBaseSink * sink,
GstBuffer * buffer);
static GstFlowReturn gst_multi_file_sink_render_list (GstBaseSink * sink,
GstBufferList * buffer_list);
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_add_old_file (GstMultiFileSink * multifilesink,
gchar * fn);
static void gst_multi_file_sink_ensure_max_files (GstMultiFileSink *
multifilesink);
static gboolean gst_multi_file_sink_event (GstBaseSink * sink,
GstEvent * event);
#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_sink_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"},
{GST_MULTI_FILE_SINK_NEXT_KEY_UNIT_EVENT,
"New file after a force key unit event", "key-unit-event"},
{GST_MULTI_FILE_SINK_NEXT_MAX_SIZE, "New file when the configured maximum "
"file size would be exceeded with the next buffer or buffer list",
"max-size"},
{GST_MULTI_FILE_SINK_NEXT_MAX_DURATION,
"New file when the configured maximum "
"file duration would be exceeded with the next buffer or buffer list",
"max-duration"},
{0, NULL, NULL}
};
if (!multi_file_sink_next_type) {
multi_file_sink_next_type =
g_enum_register_static ("GstMultiFileSinkNext", next_types);
}
return multi_file_sink_next_type;
}
#define gst_multi_file_sink_parent_class parent_class
G_DEFINE_TYPE (GstMultiFileSink, gst_multi_file_sink, GST_TYPE_BASE_SINK);
GST_ELEMENT_REGISTER_DEFINE (multifilesink, "multifilesink", GST_RANK_NONE,
gst_multi_file_sink_get_type ());
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.
*/
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.
*/
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));
/**
* 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.
*/
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));
/**
* GstMultiFileSink:max-file-size:
*
* Maximum file size before starting a new file in max-size mode.
*/
g_object_class_install_property (gobject_class, PROP_MAX_FILE_SIZE,
g_param_spec_uint64 ("max-file-size", "Maximum File Size",
"Maximum file size before starting a new file in max-size mode",
0, G_MAXUINT64, DEFAULT_MAX_FILE_SIZE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstMultiFileSink:max-file-duration:
*
* Maximum file size before starting a new file in max-size mode.
*/
g_object_class_install_property (gobject_class, PROP_MAX_FILE_DURATION,
g_param_spec_uint64 ("max-file-duration", "Maximum File Duration",
"Maximum file duration before starting a new file in max-duration mode "
"(in nanoseconds)", 0, G_MAXUINT64, DEFAULT_MAX_FILE_DURATION,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstMultiFileSink:aggregate-gops:
*
* Whether to aggregate complete GOPs before doing any processing. Set this
* to TRUE to make sure each new file starts with a keyframe. This requires
* the upstream element to flag buffers containing key units and delta
* units correctly. At least the MPEG-PS and MPEG-TS muxers should be doing
* this.
*
* Since: 1.6
*/
g_object_class_install_property (gobject_class, PROP_AGGREGATE_GOPS,
g_param_spec_boolean ("aggregate-gops", "Aggregate GOPs",
"Whether to aggregate GOPs and process them as a whole without "
"splitting", DEFAULT_AGGREGATE_GOPS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstMultiFileSink:min-keyframe-distance:
*
* Minimum distance between keyframes in `next-file=key-frame` that causes a
* new file to be created. If two keyframes arrive closer to each other they
* will end up in the same file.
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class, PROP_MIN_KEYFRAME_DISTANCE,
g_param_spec_uint64 ("min-keyframe-distance", "Minimum Keyframe Distance",
"Minimum distance between keyframes to start a new file", 0,
G_MAXUINT64, DEFAULT_MIN_KEYFRAME_DISTANCE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gobject_class->finalize = gst_multi_file_sink_finalize;
gstbasesink_class->start = GST_DEBUG_FUNCPTR (gst_multi_file_sink_start);
gstbasesink_class->stop = GST_DEBUG_FUNCPTR (gst_multi_file_sink_stop);
gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_multi_file_sink_render);
gstbasesink_class->render_list =
GST_DEBUG_FUNCPTR (gst_multi_file_sink_render_list);
gstbasesink_class->set_caps =
GST_DEBUG_FUNCPTR (gst_multi_file_sink_set_caps);
gstbasesink_class->event = GST_DEBUG_FUNCPTR (gst_multi_file_sink_event);
GST_DEBUG_CATEGORY_INIT (gst_multi_file_sink_debug, "multifilesink", 0,
"multifilesink element");
gst_element_class_add_static_pad_template (gstelement_class, &sinktemplate);
gst_element_class_set_static_metadata (gstelement_class, "Multi-File Sink",
"Sink/File",
"Write buffers to a sequentially named set of files",
"David Schleef <ds@schleef.org>");
gst_type_mark_as_plugin_api (GST_TYPE_MULTI_FILE_SINK_NEXT, 0);
}
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->max_file_size = DEFAULT_MAX_FILE_SIZE;
multifilesink->max_file_duration = DEFAULT_MAX_FILE_DURATION;
multifilesink->min_keyframe_distance = DEFAULT_MIN_KEYFRAME_DISTANCE;
multifilesink->aggregate_gops = DEFAULT_AGGREGATE_GOPS;
multifilesink->gop_adapter = NULL;
gst_base_sink_set_sync (GST_BASE_SINK (multifilesink), FALSE);
multifilesink->next_segment = GST_CLOCK_TIME_NONE;
multifilesink->force_key_unit_count = -1;
}
static void
gst_multi_file_sink_finalize (GObject * object)
{
GstMultiFileSink *sink = GST_MULTI_FILE_SINK (object);
g_free (sink->filename);
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;
case PROP_MAX_FILE_SIZE:
sink->max_file_size = g_value_get_uint64 (value);
break;
case PROP_MAX_FILE_DURATION:
sink->max_file_duration = g_value_get_uint64 (value);
break;
case PROP_AGGREGATE_GOPS:
sink->aggregate_gops = g_value_get_boolean (value);
break;
case PROP_MIN_KEYFRAME_DISTANCE:
sink->min_keyframe_distance = g_value_get_uint64 (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;
case PROP_MAX_FILE_SIZE:
g_value_set_uint64 (value, sink->max_file_size);
break;
case PROP_MAX_FILE_DURATION:
g_value_set_uint64 (value, sink->max_file_duration);
break;
case PROP_AGGREGATE_GOPS:
g_value_set_boolean (value, sink->aggregate_gops);
break;
case PROP_MIN_KEYFRAME_DISTANCE:
g_value_set_uint64 (value, sink->min_keyframe_distance);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_multi_file_sink_start (GstBaseSink * bsink)
{
GstMultiFileSink *sink = GST_MULTI_FILE_SINK (bsink);
if (sink->aggregate_gops)
sink->gop_adapter = gst_adapter_new ();
sink->potential_next_gop = NULL;
sink->file_pts = GST_CLOCK_TIME_NONE;
g_queue_init (&sink->old_files);
return TRUE;
}
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;
}
if (multifilesink->gop_adapter != NULL) {
g_object_unref (multifilesink->gop_adapter);
multifilesink->gop_adapter = NULL;
}
if (multifilesink->potential_next_gop != NULL) {
g_list_free_full (multifilesink->potential_next_gop,
(GDestroyNotify) gst_buffer_unref);
multifilesink->potential_next_gop = NULL;
}
multifilesink->force_key_unit_count = -1;
g_queue_foreach (&multifilesink->old_files, (GFunc) g_free, NULL);
g_queue_clear (&multifilesink->old_files);
return TRUE;
}
static void
gst_multi_file_sink_post_message_full (GstMultiFileSink * multifilesink,
GstClockTime timestamp, GstClockTime duration, GstClockTime offset,
GstClockTime offset_end, GstClockTime running_time,
GstClockTime stream_time, const char *filename)
{
GstStructure *s;
if (!multifilesink->post_messages)
return;
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 void
gst_multi_file_sink_post_message_from_time (GstMultiFileSink * multifilesink,
GstClockTime timestamp, GstClockTime duration, const char *filename)
{
GstClockTime running_time, stream_time;
guint64 offset, offset_end;
GstSegment *segment;
GstFormat format;
if (!multifilesink->post_messages)
return;
segment = &GST_BASE_SINK (multifilesink)->segment;
format = segment->format;
offset = -1;
offset_end = -1;
running_time = gst_segment_to_running_time (segment, format, timestamp);
stream_time = gst_segment_to_stream_time (segment, format, timestamp);
gst_multi_file_sink_post_message_full (multifilesink, timestamp, duration,
offset, offset_end, running_time, stream_time, filename);
}
static void
gst_multi_file_sink_post_message (GstMultiFileSink * multifilesink,
GstBuffer * buffer, const char *filename)
{
GstClockTime duration, timestamp;
GstClockTime running_time, stream_time;
guint64 offset, offset_end;
GstSegment *segment;
GstFormat format;
if (!multifilesink->post_messages)
return;
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);
gst_multi_file_sink_post_message_full (multifilesink, timestamp, duration,
offset, offset_end, running_time, stream_time, filename);
}
static gboolean
gst_multi_file_sink_write_stream_headers (GstMultiFileSink * sink)
{
int i;
if (sink->streamheaders == NULL)
return TRUE;
/* we want to write these at the beginning */
g_assert (sink->cur_file_size == 0);
for (i = 0; i < sink->n_streamheaders; i++) {
GstBuffer *hdr;
GstMapInfo map;
int ret;
hdr = sink->streamheaders[i];
gst_buffer_map (hdr, &map, GST_MAP_READ);
ret = fwrite (map.data, map.size, 1, sink->file);
gst_buffer_unmap (hdr, &map);
if (ret != 1)
return FALSE;
sink->cur_file_size += map.size;
}
return TRUE;
}
static GstFlowReturn
gst_multi_file_sink_write_buffer (GstMultiFileSink * multifilesink,
GstBuffer * buffer)
{
GstMapInfo map;
gchar *filename;
gboolean ret;
GError *error = NULL;
gboolean first_file = TRUE;
gst_buffer_map (buffer, &map, GST_MAP_READ);
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 *) map.data, map.size, &error);
if (!ret)
goto write_error;
gst_multi_file_sink_post_message (multifilesink, buffer, filename);
gst_multi_file_sink_add_old_file (multifilesink, 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 (map.data, map.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) +
multifilesink->min_keyframe_distance;
}
}
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) {
first_file = FALSE;
gst_multi_file_sink_close_file (multifilesink, buffer);
}
multifilesink->next_segment += multifilesink->min_keyframe_distance;
}
if (multifilesink->file == NULL) {
if (!gst_multi_file_sink_open_next_file (multifilesink))
goto stdio_write_error;
if (!first_file)
gst_multi_file_sink_write_stream_headers (multifilesink);
}
ret = fwrite (map.data, map.size, 1, multifilesink->file);
if (ret != 1)
goto stdio_write_error;
break;
case GST_MULTI_FILE_SINK_NEXT_KEY_UNIT_EVENT:
if (multifilesink->file == NULL) {
if (!gst_multi_file_sink_open_next_file (multifilesink))
goto stdio_write_error;
/* we don't need to write stream headers here, they will be inserted in
* the stream by upstream elements if key unit events have
* all_headers=true set
*/
}
ret = fwrite (map.data, map.size, 1, multifilesink->file);
if (ret != 1)
goto stdio_write_error;
break;
case GST_MULTI_FILE_SINK_NEXT_MAX_SIZE:{
guint64 new_size;
new_size = multifilesink->cur_file_size + map.size;
if (new_size > multifilesink->max_file_size) {
GST_INFO_OBJECT (multifilesink, "current size: %" G_GUINT64_FORMAT
", new_size: %" G_GUINT64_FORMAT ", max. size %" G_GUINT64_FORMAT,
multifilesink->cur_file_size, new_size,
multifilesink->max_file_size);
if (multifilesink->file != NULL) {
first_file = FALSE;
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;
if (!first_file)
gst_multi_file_sink_write_stream_headers (multifilesink);
}
ret = fwrite (map.data, map.size, 1, multifilesink->file);
if (ret != 1)
goto stdio_write_error;
multifilesink->cur_file_size += map.size;
break;
}
case GST_MULTI_FILE_SINK_NEXT_MAX_DURATION:{
GstClockTime new_duration = 0;
if (GST_BUFFER_PTS_IS_VALID (buffer)
&& GST_CLOCK_TIME_IS_VALID (multifilesink->file_pts)) {
/* The new duration will extend to this new buffer pts ... */
new_duration = GST_BUFFER_PTS (buffer) - multifilesink->file_pts;
/* ... and duration (if it has one) */
if (GST_BUFFER_DURATION_IS_VALID (buffer))
new_duration += GST_BUFFER_DURATION (buffer);
}
if (new_duration > multifilesink->max_file_duration) {
GST_INFO_OBJECT (multifilesink,
"new_duration: %" G_GUINT64_FORMAT ", max. duration %"
G_GUINT64_FORMAT, new_duration, multifilesink->max_file_duration);
if (multifilesink->file != NULL) {
first_file = FALSE;
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;
multifilesink->file_pts = GST_BUFFER_PTS (buffer);
if (!first_file)
gst_multi_file_sink_write_stream_headers (multifilesink);
}
ret = fwrite (map.data, map.size, 1, multifilesink->file);
if (ret != 1)
goto stdio_write_error;
break;
}
default:
g_assert_not_reached ();
}
gst_buffer_unmap (buffer, &map);
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, &map);
return GST_FLOW_ERROR;
}
stdio_write_error:
switch (errno) {
case ENOSPC:
GST_ELEMENT_ERROR (multifilesink, RESOURCE, NO_SPACE_LEFT,
("Error while writing to file."), ("%s", g_strerror (errno)));
break;
default:
GST_ELEMENT_ERROR (multifilesink, RESOURCE, WRITE,
("Error while writing to file."), ("%s", g_strerror (errno)));
}
gst_buffer_unmap (buffer, &map);
return GST_FLOW_ERROR;
}
static GstFlowReturn
gst_multi_file_sink_render (GstBaseSink * bsink, GstBuffer * buffer)
{
GstMultiFileSink *sink = GST_MULTI_FILE_SINK (bsink);
GstFlowReturn flow = GST_FLOW_OK;
gboolean key_unit, header;
header = GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_HEADER);
key_unit = !GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
if (sink->aggregate_gops) {
GstBuffer *gop_buffer = NULL;
guint avail;
avail = gst_adapter_available (sink->gop_adapter);
GST_LOG_OBJECT (sink, "aggregate GOP: received %s%s unit buffer: "
"%" GST_PTR_FORMAT,
(key_unit) ? "key" : "delta", (header) ? " header" : "", buffer);
/* If it's a header buffer, it might potentially be for the next GOP */
if (header) {
GST_LOG_OBJECT (sink, "Accumulating buffer to potential next GOP");
sink->potential_next_gop =
g_list_append (sink->potential_next_gop, gst_buffer_ref (buffer));
} else {
if (key_unit && avail > 0) {
GstClockTime pts, dts;
GST_LOG_OBJECT (sink, "Grabbing pending completed GOP");
pts = gst_adapter_prev_pts_at_offset (sink->gop_adapter, 0, NULL);
dts = gst_adapter_prev_dts_at_offset (sink->gop_adapter, 0, NULL);
gop_buffer = gst_adapter_take_buffer (sink->gop_adapter, avail);
GST_BUFFER_PTS (gop_buffer) = pts;
GST_BUFFER_DTS (gop_buffer) = dts;
}
/* just accumulate the buffer */
if (sink->potential_next_gop) {
GList *tmp;
GST_LOG_OBJECT (sink,
"Carrying over pending next GOP data into adapter");
/* If we have pending data, put that first in the adapter */
for (tmp = sink->potential_next_gop; tmp; tmp = tmp->next) {
GstBuffer *tmpb = (GstBuffer *) tmp->data;
gst_adapter_push (sink->gop_adapter, tmpb);
}
g_list_free (sink->potential_next_gop);
sink->potential_next_gop = NULL;
}
GST_LOG_OBJECT (sink, "storing buffer in adapter");
gst_adapter_push (sink->gop_adapter, gst_buffer_ref (buffer));
if (gop_buffer != NULL) {
GST_DEBUG_OBJECT (sink, "writing out pending GOP, %u bytes", avail);
GST_DEBUG_OBJECT (sink,
"gop buffer pts:%" GST_TIME_FORMAT " dts:%" GST_TIME_FORMAT
" duration:%" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_PTS (gop_buffer)),
GST_TIME_ARGS (GST_BUFFER_DTS (gop_buffer)),
GST_TIME_ARGS (GST_BUFFER_DURATION (gop_buffer)));
flow = gst_multi_file_sink_write_buffer (sink, gop_buffer);
gst_buffer_unref (gop_buffer);
}
}
} else {
flow = gst_multi_file_sink_write_buffer (sink, buffer);
}
return flow;
}
static gboolean
buffer_list_copy_data (GstBuffer ** buf, guint idx, gpointer data)
{
GstBuffer *dest = data;
guint num, i;
if (idx == 0)
gst_buffer_copy_into (dest, *buf, GST_BUFFER_COPY_METADATA, 0, -1);
num = gst_buffer_n_memory (*buf);
for (i = 0; i < num; ++i) {
GstMemory *mem;
mem = gst_buffer_get_memory (*buf, i);
gst_buffer_append_memory (dest, mem);
}
return TRUE;
}
/* Our assumption for now is that the buffers in a buffer list should always
* end up in the same file. If someone wants different behaviour, they'll just
* have to add a property for that. */
static GstFlowReturn
gst_multi_file_sink_render_list (GstBaseSink * sink, GstBufferList * list)
{
GstBuffer *buf;
guint size;
size = gst_buffer_list_calculate_size (list);
GST_LOG_OBJECT (sink, "total size of buffer list %p: %u", list, size);
/* copy all buffers in the list into one single buffer, so we can use
* the normal render function (FIXME: optimise to avoid the memcpy) */
buf = gst_buffer_new ();
gst_buffer_list_foreach (list, buffer_list_copy_data, buf);
g_assert (gst_buffer_get_size (buf) == size);
gst_multi_file_sink_render (sink, buf);
gst_buffer_unref (buf);
return GST_FLOW_OK;
}
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;
}
/* Takes ownership of the filename string */
static void
gst_multi_file_sink_add_old_file (GstMultiFileSink * multifilesink, gchar * fn)
{
/* Only add file to the list if a max_files limit is set, otherwise we never
* prune the list and memory just builds up until the pipeline is stopped. */
if (multifilesink->max_files > 0) {
g_queue_push_tail (&multifilesink->old_files, fn);
} else {
g_free (fn);
}
}
static void
gst_multi_file_sink_ensure_max_files (GstMultiFileSink * multifilesink)
{
guint max_files = multifilesink->max_files;
if (max_files == 0)
return;
while (g_queue_get_length (&multifilesink->old_files) >= max_files) {
gchar *filename;
filename = g_queue_pop_head (&multifilesink->old_files);
g_remove (filename);
g_free (filename);
}
}
static gboolean
gst_multi_file_sink_event (GstBaseSink * sink, GstEvent * event)
{
GstMultiFileSink *multifilesink;
gchar *filename;
multifilesink = GST_MULTI_FILE_SINK (sink);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CUSTOM_DOWNSTREAM:
{
GstClockTime timestamp, duration;
GstClockTime running_time, stream_time;
guint64 offset, offset_end;
gboolean all_headers;
guint count;
if (multifilesink->next_file != GST_MULTI_FILE_SINK_NEXT_KEY_UNIT_EVENT ||
!gst_video_event_is_force_key_unit (event))
goto out;
gst_video_event_parse_downstream_force_key_unit (event, &timestamp,
&stream_time, &running_time, &all_headers, &count);
if (multifilesink->force_key_unit_count != -1 &&
multifilesink->force_key_unit_count == count)
goto out;
multifilesink->force_key_unit_count = count;
if (multifilesink->file) {
duration = GST_CLOCK_TIME_NONE;
offset = offset_end = -1;
filename = g_strdup_printf (multifilesink->filename,
multifilesink->index);
gst_multi_file_sink_close_file (multifilesink, NULL);
gst_multi_file_sink_post_message_full (multifilesink, timestamp,
duration, offset, offset_end, running_time, stream_time, filename);
g_free (filename);
}
if (multifilesink->file == NULL) {
if (!gst_multi_file_sink_open_next_file (multifilesink))
goto stdio_write_error;
}
break;
}
case GST_EVENT_EOS:
if (multifilesink->aggregate_gops) {
GstBuffer *buf = gst_buffer_new ();
/* push key unit buffer to force writing out the pending GOP data */
GST_INFO_OBJECT (sink, "EOS, write pending GOP data");
GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
gst_multi_file_sink_render (sink, buf);
gst_buffer_unref (buf);
}
if (multifilesink->file) {
gchar *filename;
filename = g_strdup_printf (multifilesink->filename,
multifilesink->index);
gst_multi_file_sink_close_file (multifilesink, NULL);
gst_multi_file_sink_post_message_from_time (multifilesink,
GST_BASE_SINK (multifilesink)->segment.position, -1, filename);
g_free (filename);
}
break;
default:
break;
}
out:
return GST_BASE_SINK_CLASS (parent_class)->event (sink, event);
/* ERRORS */
stdio_write_error:
{
GST_ELEMENT_ERROR (multifilesink, RESOURCE, WRITE,
("Error while writing to file."), (NULL));
gst_event_unref (event);
return FALSE;
}
}
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;
}
GST_INFO_OBJECT (multifilesink, "opening file %s", filename);
gst_multi_file_sink_add_old_file (multifilesink, filename);
multifilesink->cur_file_size = 0;
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++;
}
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