mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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b99ecc78ca
GLib guarantees libintl is always present, using proxy-libintl as last resort. There is no need to mock gettex API any more. This fix static build on Windows because G_INTL_STATIC_COMPILATION must be defined before including libintl.h, and glib does it for us as part as including glib.h. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2028>
840 lines
24 KiB
C
840 lines
24 KiB
C
/* GStreamer libsndfile plugin
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* Copyright (C) 2013 Stefan Sauer <ensonic@users.sf.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with self library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdlib.h>
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#include <glib/gi18n-lib.h>
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#include <gst/audio/audio.h>
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#include "gstsfelements.h"
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#include "gstsfdec.h"
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#define FORMATS \
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"{ "GST_AUDIO_NE (F32)", "GST_AUDIO_NE (S32)", "GST_AUDIO_NE (S16)" }"
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static GstStaticPadTemplate sf_dec_src_factory = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-raw, "
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"format = (string) " FORMATS ", "
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"layout = (string) interleaved, "
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"rate = (int) [ 1, MAX ], " "channels = (int) [ 1, MAX ]"));
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GST_DEBUG_CATEGORY_STATIC (gst_sf_dec_debug);
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#define GST_CAT_DEFAULT gst_sf_dec_debug
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#define DEFAULT_BUFFER_FRAMES (256)
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static gboolean gst_sf_dec_src_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static gboolean gst_sf_dec_src_query (GstPad * pad, GstObject * parent,
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GstQuery * query);
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static GstStateChangeReturn gst_sf_dec_change_state (GstElement * element,
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GstStateChange transition);
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static gboolean gst_sf_dec_sink_activate (GstPad * pad, GstObject * parent);
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static gboolean gst_sf_dec_sink_activate_mode (GstPad * sinkpad,
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GstObject * parent, GstPadMode mode, gboolean active);
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static void gst_sf_dec_loop (GstPad * pad);
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static gboolean gst_sf_dec_start (GstSFDec * bsrc);
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static gboolean gst_sf_dec_stop (GstSFDec * bsrc);
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#define _do_init \
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GST_DEBUG_CATEGORY_INIT (gst_sf_dec_debug, "sfdec", 0, "sfdec element");
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#define gst_sf_dec_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (GstSFDec, gst_sf_dec, GST_TYPE_ELEMENT, _do_init);
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GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (sfdec, "sfdec", GST_RANK_MARGINAL,
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GST_TYPE_SF_DEC, sf_element_init (plugin));
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/* sf virtual io */
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static sf_count_t
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gst_sf_vio_get_filelen (void *user_data)
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{
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GstSFDec *self = GST_SF_DEC (user_data);
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gint64 dur;
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if (gst_pad_peer_query_duration (self->sinkpad, GST_FORMAT_BYTES, &dur)) {
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return (sf_count_t) dur;
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}
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GST_WARNING_OBJECT (self, "query_duration failed");
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return -1;
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}
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static sf_count_t
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gst_sf_vio_tell (void *user_data)
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{
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GstSFDec *self = GST_SF_DEC (user_data);
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return self->pos;
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}
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static sf_count_t
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gst_sf_vio_seek (sf_count_t offset, int whence, void *user_data)
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{
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GstSFDec *self = GST_SF_DEC (user_data);
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switch (whence) {
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case SEEK_CUR:
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self->pos += offset;
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break;
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case SEEK_SET:
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self->pos = offset;
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break;
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case SEEK_END:
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self->pos = gst_sf_vio_get_filelen (user_data) - offset;
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break;
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}
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return (sf_count_t) self->pos;
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}
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static sf_count_t
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gst_sf_vio_read (void *ptr, sf_count_t count, void *user_data)
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{
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GstSFDec *self = GST_SF_DEC (user_data);
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GstBuffer *buffer = gst_buffer_new_wrapped_full (0, ptr, count, 0, count,
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ptr, NULL);
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if (gst_pad_pull_range (self->sinkpad, self->pos, count, &buffer) ==
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GST_FLOW_OK) {
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GST_DEBUG_OBJECT (self, "read %d bytes @ pos %" G_GUINT64_FORMAT,
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(gint) count, self->pos);
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self->pos += count;
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return count;
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}
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GST_WARNING_OBJECT (self, "read failed");
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return 0;
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}
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static sf_count_t
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gst_sf_vio_write (const void *ptr, sf_count_t count, void *user_data)
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{
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GstSFDec *self = GST_SF_DEC (user_data);
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GstBuffer *buffer = gst_buffer_new_memdup (ptr, count);
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if (gst_pad_push (self->srcpad, buffer) == GST_FLOW_OK) {
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return count;
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}
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GST_WARNING_OBJECT (self, "write failed");
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return 0;
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}
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SF_VIRTUAL_IO gst_sf_vio = {
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&gst_sf_vio_get_filelen,
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&gst_sf_vio_seek,
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&gst_sf_vio_read,
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&gst_sf_vio_write,
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&gst_sf_vio_tell,
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};
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static void
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gst_sf_dec_class_init (GstSFDecClass * klass)
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{
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GstElementClass *gstelement_class;
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gstelement_class = GST_ELEMENT_CLASS (klass);
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gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_sf_dec_change_state);
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gst_element_class_set_static_metadata (gstelement_class, "Sndfile decoder",
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"Decoder/Audio",
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"Read audio streams using libsndfile",
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"Stefan Sauer <ensonic@user.sf.net>");
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gst_element_class_add_static_pad_template (gstelement_class,
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&sf_dec_src_factory);
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gst_element_class_add_pad_template (gstelement_class,
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gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
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gst_sf_create_audio_template_caps ()));
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}
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static void
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gst_sf_dec_init (GstSFDec * self)
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{
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self->sinkpad = gst_pad_new_from_template (gst_element_class_get_pad_template
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(GST_ELEMENT_GET_CLASS (self), "sink"), "sink");
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gst_pad_set_activate_function (self->sinkpad,
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GST_DEBUG_FUNCPTR (gst_sf_dec_sink_activate));
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gst_pad_set_activatemode_function (self->sinkpad,
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GST_DEBUG_FUNCPTR (gst_sf_dec_sink_activate_mode));
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gst_element_add_pad (GST_ELEMENT (self), self->sinkpad);
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self->srcpad = gst_pad_new_from_static_template (&sf_dec_src_factory, "src");
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gst_pad_set_event_function (self->srcpad,
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GST_DEBUG_FUNCPTR (gst_sf_dec_src_event));
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gst_pad_set_query_function (self->srcpad,
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GST_DEBUG_FUNCPTR (gst_sf_dec_src_query));
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gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
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}
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static gboolean
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gst_sf_dec_do_seek (GstSFDec * self, GstEvent * event)
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{
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gdouble rate;
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GstFormat format;
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GstSeekFlags flags;
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GstSeekType cur_type, stop_type;
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gboolean flush;
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gint64 cur, stop, pos;
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GstSegment seg;
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guint64 song_length = gst_util_uint64_scale_int (self->duration, GST_SECOND,
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self->rate);
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gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
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&stop_type, &stop);
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if (format != GST_FORMAT_TIME)
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goto unsupported_format;
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/* FIXME: we should be using GstSegment for all this */
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if (cur_type != GST_SEEK_TYPE_SET || stop_type != GST_SEEK_TYPE_NONE)
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goto unsupported_type;
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if (stop_type == GST_SEEK_TYPE_NONE)
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stop = GST_CLOCK_TIME_NONE;
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if (!GST_CLOCK_TIME_IS_VALID (stop) && song_length > 0)
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stop = song_length;
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cur = CLAMP (cur, -1, song_length);
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/* cur -> pos */
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pos = gst_util_uint64_scale_int (cur, self->rate, GST_SECOND);
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if ((pos = sf_seek (self->file, pos, SEEK_SET) == -1))
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goto seek_failed;
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/* pos -> cur */
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cur = gst_util_uint64_scale_int (pos, GST_SECOND, self->rate);
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GST_DEBUG_OBJECT (self, "seek to %" GST_TIME_FORMAT,
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GST_TIME_ARGS ((guint64) cur));
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flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
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if (flush) {
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gst_pad_push_event (self->srcpad, gst_event_new_flush_start ());
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} else {
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gst_pad_stop_task (self->sinkpad);
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}
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GST_PAD_STREAM_LOCK (self->sinkpad);
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if (flags & GST_SEEK_FLAG_SEGMENT) {
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gst_element_post_message (GST_ELEMENT (self),
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gst_message_new_segment_start (GST_OBJECT (self), format, cur));
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}
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if (flush) {
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gst_pad_push_event (self->srcpad, gst_event_new_flush_stop (TRUE));
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}
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GST_LOG_OBJECT (self, "sending newsegment from %" GST_TIME_FORMAT "-%"
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GST_TIME_FORMAT ", pos=%" GST_TIME_FORMAT,
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GST_TIME_ARGS ((guint64) cur), GST_TIME_ARGS ((guint64) stop),
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GST_TIME_ARGS ((guint64) cur));
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gst_segment_init (&seg, GST_FORMAT_TIME);
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seg.rate = rate;
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seg.start = cur;
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seg.stop = stop;
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seg.time = cur;
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gst_pad_push_event (self->srcpad, gst_event_new_segment (&seg));
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gst_pad_start_task (self->sinkpad,
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(GstTaskFunction) gst_sf_dec_loop, self, NULL);
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GST_PAD_STREAM_UNLOCK (self->sinkpad);
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return TRUE;
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/* ERROR */
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unsupported_format:
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{
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GST_DEBUG_OBJECT (self, "seeking is only supported in TIME format");
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return FALSE;
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}
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unsupported_type:
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{
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GST_DEBUG_OBJECT (self, "unsupported seek type");
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return FALSE;
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}
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seek_failed:
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{
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GST_DEBUG_OBJECT (self, "seek failed");
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return FALSE;
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}
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}
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static gboolean
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gst_sf_dec_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
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{
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GstSFDec *self = GST_SF_DEC (parent);
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gboolean res = FALSE;
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GST_DEBUG_OBJECT (self, "event %s, %" GST_PTR_FORMAT,
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GST_EVENT_TYPE_NAME (event), event);
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_SEEK:
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if (!self->file || !self->seekable)
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goto done;
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res = gst_sf_dec_do_seek (self, event);
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break;
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default:
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res = gst_pad_event_default (pad, parent, event);
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break;
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}
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done:
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GST_DEBUG_OBJECT (self, "event %s: %d", GST_EVENT_TYPE_NAME (event), res);
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return res;
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}
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static gboolean
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gst_sf_dec_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
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{
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GstSFDec *self = GST_SF_DEC (parent);
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GstFormat format;
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gboolean res = FALSE;
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GST_DEBUG_OBJECT (self, "query %s, %" GST_PTR_FORMAT,
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GST_QUERY_TYPE_NAME (query), query);
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_DURATION:
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if (!self->file)
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goto done;
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gst_query_parse_duration (query, &format, NULL);
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if (format == GST_FORMAT_TIME) {
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gst_query_set_duration (query, format,
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gst_util_uint64_scale_int (self->duration, GST_SECOND, self->rate));
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res = TRUE;
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}
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break;
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case GST_QUERY_POSITION:
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if (!self->file)
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goto done;
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gst_query_parse_position (query, &format, NULL);
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if (format == GST_FORMAT_TIME) {
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gst_query_set_position (query, format,
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gst_util_uint64_scale_int (self->pos, GST_SECOND, self->rate));
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res = TRUE;
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}
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break;
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default:
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res = gst_pad_query_default (pad, parent, query);
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break;
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}
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done:
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GST_DEBUG_OBJECT (self, "query %s: %d", GST_QUERY_TYPE_NAME (query), res);
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return res;
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}
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static GstStateChangeReturn
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gst_sf_dec_change_state (GstElement * element, GstStateChange transition)
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{
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GstStateChangeReturn ret;
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GstSFDec *self = GST_SF_DEC (element);
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GST_INFO_OBJECT (self, "transition: %s -> %s",
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gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
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gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
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switch (transition) {
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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gst_sf_dec_start (self);
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break;
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default:
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break;
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}
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ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
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switch (transition) {
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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gst_sf_dec_stop (self);
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break;
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default:
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break;
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}
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return ret;
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}
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static gboolean
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gst_sf_dec_start (GstSFDec * self)
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{
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return TRUE;
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}
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static gboolean
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gst_sf_dec_stop (GstSFDec * self)
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{
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int err = 0;
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GST_INFO_OBJECT (self, "Closing sndfile stream");
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if (self->file && (err = sf_close (self->file)))
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goto close_failed;
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self->file = NULL;
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self->offset = 0;
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self->channels = 0;
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self->rate = 0;
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self->pos = 0;
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self->duration = 0;
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return TRUE;
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close_failed:
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{
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GST_ELEMENT_ERROR (self, RESOURCE, CLOSE,
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("Could not close sndfile stream."),
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("soundfile error: %s", sf_error_number (err)));
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return FALSE;
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}
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}
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static gboolean
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gst_sf_dec_sink_activate (GstPad * sinkpad, GstObject * parent)
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{
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GstQuery *query;
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gboolean pull_mode;
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query = gst_query_new_scheduling ();
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if (!gst_pad_peer_query (sinkpad, query)) {
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gst_query_unref (query);
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goto activate_push;
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}
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pull_mode = gst_query_has_scheduling_mode_with_flags (query,
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GST_PAD_MODE_PULL, GST_SCHEDULING_FLAG_SEEKABLE);
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gst_query_unref (query);
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if (!pull_mode)
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goto activate_push;
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GST_DEBUG_OBJECT (sinkpad, "activating pull");
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return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, TRUE);
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activate_push:
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{
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GST_DEBUG_OBJECT (sinkpad, "activating push");
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return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PUSH, TRUE);
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}
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}
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static gboolean
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gst_sf_dec_sink_activate_mode (GstPad * sinkpad, GstObject * parent,
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GstPadMode mode, gboolean active)
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{
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gboolean res;
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switch (mode) {
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case GST_PAD_MODE_PUSH:
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res = FALSE; /* no push support */
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break;
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case GST_PAD_MODE_PULL:
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if (active) {
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/* if we have a scheduler we can start the task */
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GST_DEBUG_OBJECT (sinkpad, "start task");
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res = gst_pad_start_task (sinkpad, (GstTaskFunction) gst_sf_dec_loop,
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sinkpad, NULL);
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} else {
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res = gst_pad_stop_task (sinkpad);
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}
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break;
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default:
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res = FALSE;
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break;
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}
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return res;
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}
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static void
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create_and_send_tags (GstSFDec * self, SF_INFO * info, SF_LOOP_INFO * loop_info,
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SF_INSTRUMENT * instrument)
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{
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GstTagList *tags;
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const gchar *tag;
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const gchar *codec_name;
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/* send tags */
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tags = gst_tag_list_new_empty ();
|
|
if ((tag = sf_get_string (self->file, SF_STR_TITLE)) && *tag) {
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_TITLE, tag, NULL);
|
|
}
|
|
if ((tag = sf_get_string (self->file, SF_STR_COMMENT)) && *tag) {
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_COMMENT, tag, NULL);
|
|
}
|
|
if ((tag = sf_get_string (self->file, SF_STR_ARTIST)) && *tag) {
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_ARTIST, tag, NULL);
|
|
}
|
|
if ((tag = sf_get_string (self->file, SF_STR_ALBUM)) && *tag) {
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_ALBUM, tag, NULL);
|
|
}
|
|
if ((tag = sf_get_string (self->file, SF_STR_GENRE)) && *tag) {
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_GENRE, tag, NULL);
|
|
}
|
|
if ((tag = sf_get_string (self->file, SF_STR_COPYRIGHT)) && *tag) {
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_COPYRIGHT, tag, NULL);
|
|
}
|
|
if ((tag = sf_get_string (self->file, SF_STR_LICENSE)) && *tag) {
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_LICENSE, tag, NULL);
|
|
}
|
|
if ((tag = sf_get_string (self->file, SF_STR_SOFTWARE)) && *tag) {
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_APPLICATION_NAME, tag,
|
|
NULL);
|
|
}
|
|
if ((tag = sf_get_string (self->file, SF_STR_TRACKNUMBER)) && *tag) {
|
|
guint track = atoi (tag);
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_TRACK_NUMBER, track,
|
|
NULL);
|
|
}
|
|
if ((tag = sf_get_string (self->file, SF_STR_DATE)) && *tag) {
|
|
GValue tag_val = { 0, };
|
|
GType tag_type = gst_tag_get_type (GST_TAG_DATE_TIME);
|
|
|
|
g_value_init (&tag_val, tag_type);
|
|
if (gst_value_deserialize (&tag_val, tag)) {
|
|
gst_tag_list_add_value (tags, GST_TAG_MERGE_APPEND, GST_TAG_DATE_TIME,
|
|
&tag_val);
|
|
} else {
|
|
GST_WARNING_OBJECT (self, "could not deserialize '%s' into a "
|
|
"tag %s of type %s", tag, GST_TAG_DATE_TIME, g_type_name (tag_type));
|
|
}
|
|
g_value_unset (&tag_val);
|
|
}
|
|
if (loop_info) {
|
|
if (loop_info->bpm != 0.0) {
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_BEATS_PER_MINUTE,
|
|
(gdouble) loop_info->bpm, NULL);
|
|
}
|
|
if (loop_info->root_key != -1) {
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_MIDI_BASE_NOTE,
|
|
(guint) loop_info->root_key, NULL);
|
|
}
|
|
}
|
|
if (instrument) {
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_MIDI_BASE_NOTE,
|
|
(guint) instrument->basenote, NULL);
|
|
}
|
|
/* TODO: calculate bitrate: GST_TAG_BITRATE */
|
|
switch (info->format & SF_FORMAT_SUBMASK) {
|
|
case SF_FORMAT_PCM_S8:
|
|
case SF_FORMAT_PCM_16:
|
|
case SF_FORMAT_PCM_24:
|
|
case SF_FORMAT_PCM_32:
|
|
case SF_FORMAT_PCM_U8:
|
|
codec_name = "Uncompressed PCM audio";
|
|
break;
|
|
case SF_FORMAT_FLOAT:
|
|
case SF_FORMAT_DOUBLE:
|
|
codec_name = "Uncompressed IEEE float audio";
|
|
break;
|
|
case SF_FORMAT_ULAW:
|
|
codec_name = "µ-law audio";
|
|
break;
|
|
case SF_FORMAT_ALAW:
|
|
codec_name = "A-law audio";
|
|
break;
|
|
case SF_FORMAT_IMA_ADPCM:
|
|
case SF_FORMAT_MS_ADPCM:
|
|
case SF_FORMAT_VOX_ADPCM:
|
|
case SF_FORMAT_G721_32:
|
|
case SF_FORMAT_G723_24:
|
|
case SF_FORMAT_G723_40:
|
|
codec_name = "ADPCM audio";
|
|
break;
|
|
case SF_FORMAT_GSM610:
|
|
codec_name = "MS GSM audio";
|
|
break;
|
|
case SF_FORMAT_DWVW_12:
|
|
case SF_FORMAT_DWVW_16:
|
|
case SF_FORMAT_DWVW_24:
|
|
case SF_FORMAT_DWVW_N:
|
|
codec_name = "Delta Width Variable Word encoded audio";
|
|
break;
|
|
case SF_FORMAT_DPCM_8:
|
|
case SF_FORMAT_DPCM_16:
|
|
codec_name = "differential PCM audio";
|
|
break;
|
|
case SF_FORMAT_VORBIS:
|
|
codec_name = "Vorbis";
|
|
break;
|
|
default:
|
|
codec_name = NULL;
|
|
GST_WARNING_OBJECT (self, "unmapped codec_type: %d",
|
|
info->format & SF_FORMAT_SUBMASK);
|
|
break;
|
|
}
|
|
if (codec_name) {
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_AUDIO_CODEC,
|
|
codec_name, NULL);
|
|
}
|
|
|
|
if (!gst_tag_list_is_empty (tags)) {
|
|
GST_DEBUG_OBJECT (self, "have tags");
|
|
gst_pad_push_event (self->srcpad, gst_event_new_tag (tags));
|
|
} else {
|
|
gst_tag_list_unref (tags);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
is_valid_loop (gint mode, guint start, guint end)
|
|
{
|
|
if (!end)
|
|
return FALSE;
|
|
if (start >= end)
|
|
return FALSE;
|
|
if (!mode)
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
create_and_send_toc (GstSFDec * self, SF_INFO * info, SF_LOOP_INFO * loop_info,
|
|
SF_INSTRUMENT * instrument)
|
|
{
|
|
GstToc *toc;
|
|
GstTocEntry *entry = NULL, *subentry = NULL;
|
|
gint64 start, stop;
|
|
gchar *id;
|
|
gint i;
|
|
gboolean have_loops = FALSE;
|
|
|
|
if (!instrument)
|
|
return;
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
if (is_valid_loop (instrument->loops[i].mode, instrument->loops[i].start,
|
|
instrument->loops[i].end)) {
|
|
have_loops = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
if (!have_loops) {
|
|
GST_INFO_OBJECT (self, "Have no loops");
|
|
return;
|
|
}
|
|
|
|
|
|
toc = gst_toc_new (GST_TOC_SCOPE_GLOBAL);
|
|
GST_DEBUG_OBJECT (self, "have toc");
|
|
|
|
/* add cue edition */
|
|
entry = gst_toc_entry_new (GST_TOC_ENTRY_TYPE_EDITION, "loops");
|
|
stop = gst_util_uint64_scale_int (self->duration, GST_SECOND, self->rate);
|
|
gst_toc_entry_set_start_stop_times (entry, 0, stop);
|
|
gst_toc_append_entry (toc, entry);
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
GST_DEBUG_OBJECT (self,
|
|
"loop[%2d]: mode=%d, start=%u, end=%u, count=%u", i,
|
|
instrument->loops[i].mode, instrument->loops[i].start,
|
|
instrument->loops[i].end, instrument->loops[i].count);
|
|
if (is_valid_loop (instrument->loops[i].mode, instrument->loops[i].start,
|
|
instrument->loops[i].end)) {
|
|
id = g_strdup_printf ("%08x", i);
|
|
subentry = gst_toc_entry_new (GST_TOC_ENTRY_TYPE_CHAPTER, id);
|
|
g_free (id);
|
|
start = gst_util_uint64_scale_int (instrument->loops[i].start,
|
|
GST_SECOND, self->rate);
|
|
stop = gst_util_uint64_scale_int (instrument->loops[i].end,
|
|
GST_SECOND, self->rate);
|
|
gst_toc_entry_set_start_stop_times (subentry, start, stop);
|
|
gst_toc_entry_append_sub_entry (entry, subentry);
|
|
}
|
|
}
|
|
|
|
gst_pad_push_event (self->srcpad, gst_event_new_toc (toc, FALSE));
|
|
}
|
|
|
|
static gboolean
|
|
gst_sf_dec_open_file (GstSFDec * self)
|
|
{
|
|
SF_INFO info = { 0, };
|
|
SF_LOOP_INFO loop_info = { 0, };
|
|
SF_INSTRUMENT instrument = { 0, };
|
|
GstCaps *caps;
|
|
GstStructure *s;
|
|
GstSegment seg;
|
|
gint width;
|
|
const gchar *format;
|
|
gchar *stream_id;
|
|
gboolean have_loop_info = FALSE;
|
|
gboolean have_instrument = FALSE;
|
|
|
|
GST_DEBUG_OBJECT (self, "opening the stream");
|
|
if (!(self->file = sf_open_virtual (&gst_sf_vio, SFM_READ, &info, self)))
|
|
goto open_failed;
|
|
|
|
stream_id =
|
|
gst_pad_create_stream_id (self->srcpad, GST_ELEMENT_CAST (self), NULL);
|
|
gst_pad_push_event (self->srcpad, gst_event_new_stream_start (stream_id));
|
|
g_free (stream_id);
|
|
|
|
self->channels = info.channels;
|
|
self->rate = info.samplerate;
|
|
self->duration = info.frames;
|
|
self->seekable = info.seekable;
|
|
GST_DEBUG_OBJECT (self, "stream openend: channels=%d, rate=%d, seekable=%d",
|
|
info.channels, info.samplerate, info.seekable);
|
|
|
|
/* negotiate srcpad caps */
|
|
if ((caps = gst_pad_get_allowed_caps (self->srcpad)) == NULL) {
|
|
caps = gst_pad_get_pad_template_caps (self->srcpad);
|
|
}
|
|
caps = gst_caps_make_writable (caps);
|
|
GST_DEBUG_OBJECT (self, "allowed caps %" GST_PTR_FORMAT, caps);
|
|
|
|
s = gst_caps_get_structure (caps, 0);
|
|
gst_structure_set (s,
|
|
"channels", G_TYPE_INT, self->channels,
|
|
"rate", G_TYPE_INT, self->rate, NULL);
|
|
|
|
if (!gst_structure_fixate_field_string (s, "format", GST_AUDIO_NE (S16)))
|
|
GST_WARNING_OBJECT (self, "Failed to fixate format to S16NE");
|
|
|
|
caps = gst_caps_fixate (caps);
|
|
|
|
GST_DEBUG_OBJECT (self, "fixated caps %" GST_PTR_FORMAT, caps);
|
|
|
|
/* configure to output the negotiated format */
|
|
s = gst_caps_get_structure (caps, 0);
|
|
format = gst_structure_get_string (s, "format");
|
|
if (g_str_equal (format, GST_AUDIO_NE (S32))) {
|
|
self->reader = (GstSFReader) sf_readf_int;
|
|
width = 32;
|
|
} else if (g_str_equal (format, GST_AUDIO_NE (S16))) {
|
|
self->reader = (GstSFReader) sf_readf_short;
|
|
width = 16;
|
|
} else {
|
|
self->reader = (GstSFReader) sf_readf_float;
|
|
width = 32;
|
|
}
|
|
self->bytes_per_frame = width * self->channels / 8;
|
|
|
|
gst_pad_set_caps (self->srcpad, caps);
|
|
gst_caps_unref (caps);
|
|
|
|
/* push initial segment */
|
|
gst_segment_init (&seg, GST_FORMAT_TIME);
|
|
seg.stop = gst_util_uint64_scale_int (self->duration, GST_SECOND, self->rate);
|
|
gst_pad_push_event (self->srcpad, gst_event_new_segment (&seg));
|
|
|
|
/* get extra details */
|
|
if (sf_command (self->file, SFC_GET_LOOP_INFO, &loop_info,
|
|
sizeof (loop_info))) {
|
|
GST_DEBUG_OBJECT (self, "have loop info");
|
|
have_loop_info = TRUE;
|
|
}
|
|
if (sf_command (self->file, SFC_GET_INSTRUMENT, &instrument,
|
|
sizeof (instrument))) {
|
|
GST_DEBUG_OBJECT (self, "have instrument");
|
|
have_instrument = TRUE;
|
|
}
|
|
|
|
create_and_send_tags (self, &info, (have_loop_info ? &loop_info : NULL),
|
|
(have_instrument ? &instrument : NULL));
|
|
|
|
create_and_send_toc (self, &info, (have_loop_info ? &loop_info : NULL),
|
|
(have_instrument ? &instrument : NULL));
|
|
|
|
return TRUE;
|
|
|
|
open_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ,
|
|
(_("Could not open sndfile stream for reading.")),
|
|
("soundfile error: %s", sf_strerror (NULL)));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_sf_dec_loop (GstPad * pad)
|
|
{
|
|
GstSFDec *self = GST_SF_DEC (GST_PAD_PARENT (pad));
|
|
GstBuffer *buf;
|
|
GstMapInfo map;
|
|
GstFlowReturn flow;
|
|
sf_count_t frames_read;
|
|
guint num_frames = 1024; /* arbitrary */
|
|
|
|
if (G_UNLIKELY (!self->file)) {
|
|
/* not started yet */
|
|
if (!gst_sf_dec_open_file (self))
|
|
goto pause;
|
|
}
|
|
|
|
buf = gst_buffer_new_and_alloc (self->bytes_per_frame * num_frames);
|
|
gst_buffer_map (buf, &map, GST_MAP_WRITE);
|
|
frames_read = self->reader (self->file, map.data, num_frames);
|
|
GST_LOG_OBJECT (self, "read %d / %d bytes = %d frames of audio",
|
|
(gint) frames_read, (gint) map.size, num_frames);
|
|
gst_buffer_unmap (buf, &map);
|
|
|
|
if (G_UNLIKELY (frames_read < 0))
|
|
goto could_not_read;
|
|
|
|
if (G_UNLIKELY (frames_read == 0))
|
|
goto eos;
|
|
|
|
GST_BUFFER_OFFSET (buf) = self->offset;
|
|
GST_BUFFER_TIMESTAMP (buf) = gst_util_uint64_scale_int (self->offset,
|
|
GST_SECOND, self->rate);
|
|
self->offset += frames_read;
|
|
GST_BUFFER_DURATION (buf) = gst_util_uint64_scale_int (self->offset,
|
|
GST_SECOND, self->rate) - GST_BUFFER_TIMESTAMP (buf);
|
|
|
|
flow = gst_pad_push (self->srcpad, buf);
|
|
if (flow != GST_FLOW_OK) {
|
|
GST_LOG_OBJECT (self, "pad push flow: %s", gst_flow_get_name (flow));
|
|
goto pause;
|
|
}
|
|
|
|
return;
|
|
|
|
/* ERROR */
|
|
could_not_read:
|
|
{
|
|
GST_ELEMENT_ERROR (self, RESOURCE, READ, (NULL), GST_ERROR_SYSTEM);
|
|
gst_buffer_unref (buf);
|
|
goto pause;
|
|
}
|
|
eos:
|
|
{
|
|
GST_DEBUG_OBJECT (self, "EOS");
|
|
gst_buffer_unref (buf);
|
|
gst_pad_push_event (self->srcpad, gst_event_new_eos ());
|
|
goto pause;
|
|
}
|
|
pause:
|
|
{
|
|
GST_INFO_OBJECT (self, "Pausing");
|
|
gst_pad_pause_task (self->sinkpad);
|
|
}
|
|
}
|