gstreamer/ext/sndfile/gstsfsink.c

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/* GStreamer libsndfile plugin
* Copyright (C) 2007 Andy Wingo <wingo at pobox dot com>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/audio/audio.h>
#include <gst/gst-i18n-plugin.h>
#include "gstsfsink.h"
enum
{
PROP_0,
PROP_LOCATION,
PROP_MAJOR_TYPE,
PROP_MINOR_TYPE,
PROP_BUFFER_FRAMES
};
#define DEFAULT_BUFFER_FRAMES (256)
static GstStaticPadTemplate sf_sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-float, "
"rate = (int) [ 1, MAX ], "
"channels = (int) [ 1, MAX ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) 32; "
"audio/x-raw-int, "
"rate = (int) [ 1, MAX ], "
"channels = (int) [ 1, MAX ], "
"endianness = (int) BYTE_ORDER, "
"width = (int) {16, 32}, "
"depth = (int) {16, 32}, " "signed = (boolean) true")
);
GST_BOILERPLATE (GstSFSink, gst_sf_sink, GstBaseSink, GST_TYPE_BASE_SINK);
static void gst_sf_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_sf_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_sf_sink_start (GstBaseSink * bsink);
static gboolean gst_sf_sink_stop (GstBaseSink * bsink);
static void gst_sf_sink_fixate (GstBaseSink * bsink, GstCaps * caps);
static gboolean gst_sf_sink_set_caps (GstBaseSink * bsink, GstCaps * caps);
static gboolean gst_sf_sink_activate_pull (GstBaseSink * bsink,
gboolean active);
static GstFlowReturn gst_sf_sink_render (GstBaseSink * bsink,
GstBuffer * buffer);
static gboolean gst_sf_sink_event (GstBaseSink * bsink, GstEvent * event);
static gboolean gst_sf_sink_open_file (GstSFSink * this);
static void gst_sf_sink_close_file (GstSFSink * this);
GST_DEBUG_CATEGORY_STATIC (gst_sf_debug);
#define GST_CAT_DEFAULT gst_sf_debug
static void
gst_sf_sink_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GST_DEBUG_CATEGORY_INIT (gst_sf_debug, "sfsink", 0, "sfsink element");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sf_sink_factory));
gst_element_class_set_static_metadata (element_class, "Sndfile sink",
"Sink/Audio",
"Write audio streams to disk using libsndfile",
"Andy Wingo <wingo at pobox dot com>");
}
static void
gst_sf_sink_class_init (GstSFSinkClass * klass)
{
GObjectClass *gobject_class;
GstBaseSinkClass *basesink_class;
GParamSpec *pspec;
gobject_class = (GObjectClass *) klass;
basesink_class = (GstBaseSinkClass *) klass;
gobject_class->set_property = gst_sf_sink_set_property;
gobject_class->get_property = gst_sf_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));
pspec = g_param_spec_enum
("major-type", "Major type", "Major output type", GST_TYPE_SF_MAJOR_TYPES,
SF_FORMAT_WAV,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS);
g_object_class_install_property (gobject_class, PROP_MAJOR_TYPE, pspec);
pspec = g_param_spec_enum
("minor-type", "Minor type", "Minor output type", GST_TYPE_SF_MINOR_TYPES,
SF_FORMAT_FLOAT,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS);
g_object_class_install_property (gobject_class, PROP_MINOR_TYPE, pspec);
pspec = g_param_spec_int
("buffer-frames", "Buffer frames",
"Number of frames per buffer, in pull mode", 1, G_MAXINT,
DEFAULT_BUFFER_FRAMES,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS);
g_object_class_install_property (gobject_class, PROP_BUFFER_FRAMES, pspec);
basesink_class->get_times = NULL;
basesink_class->start = GST_DEBUG_FUNCPTR (gst_sf_sink_start);
basesink_class->stop = GST_DEBUG_FUNCPTR (gst_sf_sink_stop);
basesink_class->fixate = GST_DEBUG_FUNCPTR (gst_sf_sink_fixate);
basesink_class->set_caps = GST_DEBUG_FUNCPTR (gst_sf_sink_set_caps);
basesink_class->activate_pull = GST_DEBUG_FUNCPTR (gst_sf_sink_activate_pull);
basesink_class->render = GST_DEBUG_FUNCPTR (gst_sf_sink_render);
basesink_class->event = GST_DEBUG_FUNCPTR (gst_sf_sink_event);
}
static void
gst_sf_sink_init (GstSFSink * this, GstSFSinkClass * klass)
{
GST_BASE_SINK (this)->can_activate_pull = TRUE;
}
static void
gst_sf_sink_set_location (GstSFSink * this, const gchar * location)
{
if (this->file)
goto was_open;
if (this->location)
g_free (this->location);
this->location = location ? g_strdup (location) : NULL;
return;
was_open:
{
g_warning ("Changing the `location' property on sfsink when "
"a file is open not supported.");
return;
}
}
static void
gst_sf_sink_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
GstSFSink *this = GST_SF_SINK (object);
switch (prop_id) {
case PROP_LOCATION:
gst_sf_sink_set_location (this, g_value_get_string (value));
break;
case PROP_MAJOR_TYPE:
this->format_major = g_value_get_enum (value);
break;
case PROP_MINOR_TYPE:
this->format_subtype = g_value_get_enum (value);
break;
case PROP_BUFFER_FRAMES:
this->buffer_frames = g_value_get_int (value);
break;
default:
break;
}
}
static void
gst_sf_sink_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstSFSink *this = GST_SF_SINK (object);
switch (prop_id) {
case PROP_LOCATION:
g_value_set_string (value, this->location);
break;
case PROP_MAJOR_TYPE:
g_value_set_enum (value, this->format_major);
break;
case PROP_MINOR_TYPE:
g_value_set_enum (value, this->format_subtype);
break;
case PROP_BUFFER_FRAMES:
g_value_set_int (value, this->buffer_frames);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_sf_sink_start (GstBaseSink * bsink)
{
/* pass */
return TRUE;
}
static gboolean
gst_sf_sink_stop (GstBaseSink * bsink)
{
GstSFSink *this = GST_SF_SINK (bsink);
if (this->file)
gst_sf_sink_close_file (this);
return TRUE;
}
static gboolean
gst_sf_sink_open_file (GstSFSink * this)
{
int mode;
SF_INFO info;
g_return_val_if_fail (this->file == NULL, FALSE);
g_return_val_if_fail (this->rate > 0, FALSE);
g_return_val_if_fail (this->channels > 0, FALSE);
if (!this->location)
goto no_filename;
mode = SFM_WRITE;
this->format = this->format_major | this->format_subtype;
info.samplerate = this->rate;
info.channels = this->channels;
info.format = this->format;
GST_INFO_OBJECT (this, "Opening %s with rate %d, %d channels, format 0x%x",
this->location, info.samplerate, info.channels, info.format);
if (!sf_format_check (&info))
goto bad_format;
this->file = sf_open (this->location, mode, &info);
if (!this->file)
goto open_failed;
return TRUE;
no_filename:
{
GST_ELEMENT_ERROR (this, RESOURCE, NOT_FOUND,
(_("No file name specified for writing.")), (NULL));
return FALSE;
}
bad_format:
{
GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL),
("Input parameters (rate:%d, channels:%d, format:0x%x) invalid",
info.samplerate, info.channels, info.format));
return FALSE;
}
open_failed:
{
GST_ELEMENT_ERROR (this, RESOURCE, OPEN_WRITE,
(_("Could not open file \"%s\" for writing."), this->location),
("soundfile error: %s", sf_strerror (NULL)));
return FALSE;
}
}
static void
gst_sf_sink_close_file (GstSFSink * this)
{
int err = 0;
g_return_if_fail (this->file != NULL);
GST_INFO_OBJECT (this, "Closing file %s", this->location);
if ((err = sf_close (this->file)))
goto close_failed;
this->file = NULL;
return;
close_failed:
{
GST_ELEMENT_ERROR (this, RESOURCE, CLOSE,
("Could not close file file \"%s\".", this->location),
("soundfile error: %s", sf_error_number (err)));
return;
}
}
static void
gst_sf_sink_fixate (GstBaseSink * bsink, GstCaps * caps)
{
GstStructure *s;
gint width, depth;
s = gst_caps_get_structure (caps, 0);
/* fields for all formats */
gst_structure_fixate_field_nearest_int (s, "rate", 44100);
gst_structure_fixate_field_nearest_int (s, "channels", 2);
gst_structure_fixate_field_nearest_int (s, "width", 16);
/* fields for int */
if (gst_structure_has_field (s, "depth")) {
gst_structure_get_int (s, "width", &width);
/* round width to nearest multiple of 8 for the depth */
depth = GST_ROUND_UP_8 (width);
gst_structure_fixate_field_nearest_int (s, "depth", depth);
}
if (gst_structure_has_field (s, "signed"))
gst_structure_fixate_field_boolean (s, "signed", TRUE);
if (gst_structure_has_field (s, "endianness"))
gst_structure_fixate_field_nearest_int (s, "endianness", G_BYTE_ORDER);
}
static gboolean
gst_sf_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
{
GstSFSink *this = (GstSFSink *) bsink;
GstStructure *structure;
gint width, channels, rate;
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "width", &width)
|| !gst_structure_get_int (structure, "channels", &channels)
|| !gst_structure_get_int (structure, "rate", &rate))
goto impossible;
if (gst_structure_has_name (structure, "audio/x-raw-int")) {
switch (width) {
case 16:
this->writer = (GstSFWriter) sf_writef_short;
break;
case 32:
this->writer = (GstSFWriter) sf_writef_int;
break;
default:
goto impossible;
}
} else {
switch (width) {
case 32:
this->writer = (GstSFWriter) sf_writef_float;
break;
default:
goto impossible;
}
}
this->bytes_per_frame = width * channels / 8;
this->rate = rate;
this->channels = channels;
return gst_sf_sink_open_file (this);
impossible:
{
g_warning ("something impossible happened");
return FALSE;
}
}
/* with STREAM_LOCK
*/
static void
gst_sf_sink_loop (GstPad * pad)
{
GstSFSink *this;
GstBaseSink *basesink;
GstBuffer *buf = NULL;
GstFlowReturn result;
this = GST_SF_SINK (gst_pad_get_parent (pad));
basesink = GST_BASE_SINK (this);
result = gst_pad_pull_range (pad, basesink->offset,
this->buffer_frames * this->bytes_per_frame, &buf);
if (G_UNLIKELY (result != GST_FLOW_OK))
goto paused;
if (G_UNLIKELY (buf == NULL))
goto no_buffer;
basesink->offset += GST_BUFFER_SIZE (buf);
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GST_BASE_SINK_PREROLL_LOCK (basesink);
result = gst_sf_sink_render (basesink, buf);
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GST_BASE_SINK_PREROLL_UNLOCK (basesink);
if (G_UNLIKELY (result != GST_FLOW_OK))
goto paused;
gst_object_unref (this);
return;
/* ERRORS */
paused:
{
GST_INFO_OBJECT (basesink, "pausing task, reason %s",
gst_flow_get_name (result));
gst_pad_pause_task (pad);
/* fatal errors and NOT_LINKED cause EOS */
2010-08-27 16:56:23 +00:00
if (result == GST_FLOW_UNEXPECTED) {
gst_pad_send_event (pad, gst_event_new_eos ());
} else if (result < GST_FLOW_UNEXPECTED || result == GST_FLOW_NOT_LINKED) {
GST_ELEMENT_ERROR (basesink, STREAM, FAILED,
(_("Internal data stream error.")),
("stream stopped, reason %s", gst_flow_get_name (result)));
gst_pad_send_event (pad, gst_event_new_eos ());
}
gst_object_unref (this);
return;
}
no_buffer:
{
GST_INFO_OBJECT (this, "no buffer, pausing");
result = GST_FLOW_ERROR;
goto paused;
}
}
static gboolean
gst_sf_sink_activate_pull (GstBaseSink * basesink, gboolean active)
{
gboolean result;
if (active) {
/* start task */
result = gst_pad_start_task (basesink->sinkpad,
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(GstTaskFunction) gst_sf_sink_loop, basesink->sinkpad, NULL);
} else {
/* step 2, make sure streaming finishes */
result = gst_pad_stop_task (basesink->sinkpad);
}
return result;
}
static GstFlowReturn
gst_sf_sink_render (GstBaseSink * bsink, GstBuffer * buffer)
{
GstSFSink *this;
sf_count_t written, num_to_write;
this = (GstSFSink *) bsink;
if (GST_BUFFER_SIZE (buffer) % this->bytes_per_frame)
goto bad_length;
num_to_write = GST_BUFFER_SIZE (buffer) / this->bytes_per_frame;
written = this->writer (this->file, GST_BUFFER_DATA (buffer), num_to_write);
if (written != num_to_write)
goto short_write;
return GST_FLOW_OK;
bad_length:
{
GST_ELEMENT_ERROR (this, RESOURCE, WRITE,
(_("Could not write to file \"%s\"."), this->location),
("bad buffer size: %u %% %d != 0", GST_BUFFER_SIZE (buffer),
this->bytes_per_frame));
return GST_FLOW_ERROR;
}
short_write:
{
GST_ELEMENT_ERROR (this, RESOURCE, WRITE,
(_("Could not write to file \"%s\"."), this->location),
("soundfile error: %s", sf_strerror (this->file)));
return GST_FLOW_ERROR;
}
}
static gboolean
gst_sf_sink_event (GstBaseSink * bsink, GstEvent * event)
{
GstSFSink *this;
GstEventType type;
this = (GstSFSink *) bsink;
type = GST_EVENT_TYPE (event);
switch (type) {
case GST_EVENT_EOS:
if (this->file)
sf_write_sync (this->file);
break;
default:
break;
}
return TRUE;
}