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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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sbc: port encoder to GstAudioEncoder
https://bugzilla.gnome.org/show_bug.cgi?id=690582
This commit is contained in:
parent
ca9daee444
commit
a028a05054
5 changed files with 209 additions and 980 deletions
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@ -3,13 +3,11 @@ plugin_LTLIBRARIES = libgstsbc.la
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noinst_HEADERS = \
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gstsbcdec.h \
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gstsbcenc.h \
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gstsbcutil.h
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gstsbcenc.h
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libgstsbc_la_SOURCES = \
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gstsbcdec.c \
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gstsbcenc.c \
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gstsbcutil.c \
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sbc-plugin.c
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libgstsbc_la_CFLAGS = \
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$(GST_PLUGINS_BASE_CFLAGS) \
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@ -1,8 +1,6 @@
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/* GStreamer SBC audio encoder
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
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*
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* Copyright (C) 2013 Tim-Philipp Müller <tim centricular 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 Lesser General Public
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@ -20,130 +18,35 @@
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*
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*/
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/**
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* SECTION:element-sbenc
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*
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* This element encodes raw integer PCM audio into a Bluetooth SBC audio.
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*
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* Encoding paramets such as blocks, subbands, bitpool, channel-mode, and
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* allocation-mode can be set by adding a capsfilter element with appropriate
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* filtercaps after the sbcenc encoder element.
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*
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* <refsect2>
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* <title>Example pipelines</title>
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* |[
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* gst-launch-1.0 -v audiotestsrc ! sbcenc ! rtpsbcpay ! udpsink
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* ]| Encode a sine wave into SBC, RTP payload it and send over the network using UDP
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* </refsect2>
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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 <string.h>
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#include "gstsbcutil.h"
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#include "gstsbcenc.h"
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#include <gst/audio/audio.h>
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#define SBC_ENC_DEFAULT_CHANNEL_MODE SBC_MODE_AUTO
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#define SBC_ENC_DEFAULT_BLOCKS 0
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#define SBC_ENC_DEFAULT_SUB_BANDS 0
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#define SBC_ENC_DEFAULT_ALLOCATION_METHOD SBC_AM_AUTO
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#define SBC_ENC_DEFAULT_RATE 0
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#define SBC_ENC_DEFAULT_CHANNELS 0
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#define SBC_ENC_BITPOOL_AUTO 1
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#define SBC_ENC_BITPOOL_MIN 2
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#define SBC_ENC_BITPOOL_MIN_STR "2"
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#define SBC_ENC_BITPOOL_MAX 64
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#define SBC_ENC_BITPOOL_MAX_STR "64"
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GST_DEBUG_CATEGORY_STATIC (sbc_enc_debug);
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#define GST_CAT_DEFAULT sbc_enc_debug
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#define GST_TYPE_SBC_CHANNEL_MODE (gst_sbc_channel_mode_get_type())
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static GType
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gst_sbc_channel_mode_get_type (void)
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{
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static GType sbc_channel_mode_type = 0;
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static GEnumValue sbc_channel_modes[] = {
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{SBC_MODE_MONO, "Mono", "mono"},
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{SBC_MODE_DUAL_CHANNEL, "Dual", "dual"},
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{SBC_MODE_STEREO, "Stereo", "stereo"},
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{SBC_MODE_JOINT_STEREO, "Joint Stereo", "joint"},
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{SBC_MODE_AUTO, "Auto", "auto"},
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{-1, NULL, NULL}
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};
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if (!sbc_channel_mode_type) {
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sbc_channel_mode_type =
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g_enum_register_static ("GstSbcChannelMode", sbc_channel_modes);
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}
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return sbc_channel_mode_type;
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}
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#define GST_TYPE_SBC_ALLOCATION_METHOD (gst_sbc_allocation_method_get_type())
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static GType
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gst_sbc_allocation_method_get_type (void)
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{
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static GType sbc_allocation_method_type = 0;
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static GEnumValue sbc_allocation_methods[] = {
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{SBC_AM_LOUDNESS, "Loudness", "loudness"},
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{SBC_AM_SNR, "SNR", "snr"},
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{SBC_AM_AUTO, "Auto", "auto"},
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{-1, NULL, NULL}
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};
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if (!sbc_allocation_method_type)
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sbc_allocation_method_type =
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g_enum_register_static ("GstSbcAllocationMethod",
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sbc_allocation_methods);
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return sbc_allocation_method_type;
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}
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#define GST_TYPE_SBC_BLOCKS (gst_sbc_blocks_get_type())
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static GType
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gst_sbc_blocks_get_type (void)
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{
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static GType sbc_blocks_type = 0;
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static GEnumValue sbc_blocks[] = {
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{0, "Auto", "auto"},
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{4, "4", "4"},
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{8, "8", "8"},
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{12, "12", "12"},
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{16, "16", "16"},
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{-1, NULL, NULL}
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};
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if (!sbc_blocks_type)
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sbc_blocks_type = g_enum_register_static ("GstSbcBlocks", sbc_blocks);
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return sbc_blocks_type;
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}
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#define GST_TYPE_SBC_SUBBANDS (gst_sbc_subbands_get_type())
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static GType
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gst_sbc_subbands_get_type (void)
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{
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static GType sbc_subbands_type = 0;
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static GEnumValue sbc_subbands[] = {
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{0, "Auto", "auto"},
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{4, "4 subbands", "4"},
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{8, "8 subbands", "8"},
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{-1, NULL, NULL}
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};
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if (!sbc_subbands_type)
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sbc_subbands_type = g_enum_register_static ("GstSbcSubbands", sbc_subbands);
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return sbc_subbands_type;
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}
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enum
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{
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PROP_0,
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PROP_MODE,
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PROP_ALLOCATION,
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PROP_BLOCKS,
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PROP_SUBBANDS,
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PROP_BITPOOL
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};
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/* FIXME: rewrite based on GstAudioEncoder base class */
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#define parent_class gst_sbc_enc_parent_class
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G_DEFINE_TYPE (GstSbcEnc, gst_sbc_enc, GST_TYPE_ELEMENT);
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G_DEFINE_TYPE (GstSbcEnc, gst_sbc_enc, GST_TYPE_AUDIO_ENCODER);
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static GstStaticPadTemplate sbc_enc_sink_factory =
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GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
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@ -160,99 +63,39 @@ GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
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"blocks = (int) { 4, 8, 12, 16 }, "
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"subbands = (int) { 4, 8 }, "
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"allocation-method = (string) { snr, loudness }, "
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"bitpool = (int) [ " SBC_ENC_BITPOOL_MIN_STR
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", " SBC_ENC_BITPOOL_MAX_STR " ]"));
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"bitpool = (int) [ 2, 64 ]"));
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static gboolean gst_sbc_enc_fill_sbc_params (GstSbcEnc * enc, GstCaps * caps);
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static gboolean gst_sbc_enc_sink_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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/* FIXME does this make sense? */
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static GstCaps *
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sbc_enc_generate_srcpad_caps (GstSbcEnc * enc)
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{
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GstCaps *src_caps;
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GstStructure *structure;
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GEnumValue *enum_value;
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GEnumClass *enum_class;
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GValue *value;
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src_caps = gst_caps_copy (gst_pad_get_pad_template_caps (enc->srcpad));
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structure = gst_caps_get_structure (src_caps, 0);
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/* FIXME: use gst_structure_set() */
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value = g_new0 (GValue, 1);
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if (enc->rate != 0)
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gst_sbc_util_set_structure_int_param (structure, "rate", enc->rate, value);
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if (enc->channels != 0)
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gst_sbc_util_set_structure_int_param (structure, "channels",
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enc->channels, value);
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if (enc->subbands != 0)
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gst_sbc_util_set_structure_int_param (structure, "subbands",
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enc->subbands, value);
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if (enc->blocks != 0)
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gst_sbc_util_set_structure_int_param (structure, "blocks",
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enc->blocks, value);
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if (enc->bitpool != SBC_ENC_BITPOOL_AUTO)
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gst_sbc_util_set_structure_int_param (structure, "bitpool",
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enc->bitpool, value);
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if (enc->mode != SBC_ENC_DEFAULT_CHANNEL_MODE) {
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enum_class = g_type_class_ref (GST_TYPE_SBC_CHANNEL_MODE);
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enum_value = g_enum_get_value (enum_class, enc->mode);
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gst_sbc_util_set_structure_string_param (structure, "channel-mode",
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enum_value->value_nick, value);
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g_type_class_unref (enum_class);
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}
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if (enc->allocation != SBC_AM_AUTO) {
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enum_class = g_type_class_ref (GST_TYPE_SBC_ALLOCATION_METHOD);
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enum_value = g_enum_get_value (enum_class, enc->allocation);
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gst_sbc_util_set_structure_string_param (structure, "allocation-method",
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enum_value->value_nick, value);
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g_type_class_unref (enum_class);
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}
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g_free (value);
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return src_caps;
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}
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static GstCaps *
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sbc_enc_src_getcaps (GstPad * pad)
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{
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GstSbcEnc *enc;
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enc = GST_SBC_ENC (GST_PAD_PARENT (pad));
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return sbc_enc_generate_srcpad_caps (enc);
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}
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static gboolean gst_sbc_enc_start (GstAudioEncoder * enc);
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static gboolean gst_sbc_enc_stop (GstAudioEncoder * enc);
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static gboolean gst_sbc_enc_set_format (GstAudioEncoder * enc,
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GstAudioInfo * info);
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static GstFlowReturn gst_sbc_enc_handle_frame (GstAudioEncoder * enc,
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GstBuffer * buffer);
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static gboolean
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sbc_enc_negotiate_output_caps (GstSbcEnc * enc, GstCaps * in_caps)
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gst_sbc_enc_set_format (GstAudioEncoder * audio_enc, GstAudioInfo * info)
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{
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const gchar *allocation_method, *channel_mode;
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GstSbcEnc *enc = GST_SBC_ENC (audio_enc);
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GstStructure *s;
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GstCaps *caps, *filter_caps;
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GstCaps *output_caps;
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guint sampleframes_per_frame;
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GST_INFO_OBJECT (enc, "input caps %" GST_PTR_FORMAT, in_caps);
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caps = gst_pad_get_allowed_caps (enc->srcpad);
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if (caps == NULL)
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caps = sbc_enc_src_getcaps (enc->srcpad);
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enc->rate = GST_AUDIO_INFO_RATE (info);
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enc->channels = GST_AUDIO_INFO_CHANNELS (info);
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/* negotiate output format based on downstream caps restrictions */
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caps = gst_pad_get_allowed_caps (GST_AUDIO_ENCODER_SRC_PAD (enc));
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if (caps == GST_CAPS_NONE || gst_caps_is_empty (caps)) {
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gst_caps_unref (caps);
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return FALSE;
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}
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if (caps == NULL)
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caps = gst_static_pad_template_get_caps (&sbc_enc_src_factory);
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/* fixate output caps */
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filter_caps = gst_caps_new_simple ("audio/x-sbc", "rate", G_TYPE_INT,
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enc->rate, "channels", G_TYPE_INT, enc->channels, NULL);
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@ -260,15 +103,17 @@ sbc_enc_negotiate_output_caps (GstSbcEnc * enc, GstCaps * in_caps)
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gst_caps_unref (filter_caps);
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if (output_caps == NULL || gst_caps_is_empty (output_caps)) {
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GST_DEBUG_OBJECT (enc, "Couldn't negotiate output caps with input rate %d "
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"and input channels %d and allowed output caps %" GST_PTR_FORMAT,
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GST_WARNING_OBJECT (enc, "Couldn't negotiate output caps with input rate "
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"%d and input channels %d and allowed output caps %" GST_PTR_FORMAT,
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enc->rate, enc->channels, caps);
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if (output_caps)
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gst_caps_unref (output_caps);
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gst_caps_unref (caps);
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return FALSE;
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}
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gst_caps_unref (caps);
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caps = NULL;
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GST_DEBUG_OBJECT (enc, "fixating caps %" GST_PTR_FORMAT, output_caps);
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output_caps = gst_caps_truncate (output_caps);
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@ -280,9 +125,12 @@ sbc_enc_negotiate_output_caps (GstSbcEnc * enc, GstCaps * in_caps)
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return FALSE;
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}
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} else {
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if (gst_structure_fixate_field_string (s, "channel-mode", "joint")
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|| gst_structure_fixate_field_string (s, "channel-mode", "stereo")) {
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gst_structure_fixate_field_string (s, "channel-mode", "dual");
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if (!gst_structure_fixate_field_string (s, "channel-mode", "joint") &&
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!gst_structure_fixate_field_string (s, "channel-mode", "stereo") &&
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!gst_structure_fixate_field_string (s, "channel-mode", "dual")) {
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GST_DEBUG_OBJECT (enc, "Failed to fixate channel-mode for 2 channels");
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gst_caps_unref (output_caps);
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return FALSE;
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}
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}
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@ -294,304 +142,201 @@ sbc_enc_negotiate_output_caps (GstSbcEnc * enc, GstCaps * in_caps)
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/* in case there's anything else left to fixate */
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output_caps = gst_caps_fixate (output_caps);
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gst_caps_set_simple (output_caps, "parsed", G_TYPE_BOOLEAN, TRUE, NULL);
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GST_INFO_OBJECT (enc, "output caps %" GST_PTR_FORMAT, output_caps);
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if (!gst_sbc_enc_fill_sbc_params (enc, output_caps)) {
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GST_WARNING_OBJECT (enc, "failed to configure encoder from output "
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"caps %" GST_PTR_FORMAT, output_caps);
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return FALSE;
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}
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gst_pad_send_event (enc->sinkpad, gst_event_new_caps (output_caps));
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gst_caps_unref (output_caps);
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/* let's see what we fixated to */
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s = gst_caps_get_structure (output_caps, 0);
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gst_structure_get_int (s, "blocks", &enc->blocks);
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gst_structure_get_int (s, "subbands", &enc->subbands);
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gst_structure_get_int (s, "bitpool", &enc->bitpool);
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allocation_method = gst_structure_get_string (s, "allocation-method");
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channel_mode = gst_structure_get_string (s, "channel-mode");
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return TRUE;
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}
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/* we want to be handed all available samples in handle_frame, but always
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* enough to encode a frame */
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sampleframes_per_frame = enc->blocks * enc->subbands;
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gst_audio_encoder_set_frame_samples_min (audio_enc, sampleframes_per_frame);
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gst_audio_encoder_set_frame_samples_max (audio_enc, sampleframes_per_frame);
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gst_audio_encoder_set_frame_max (audio_enc, 0);
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static gboolean
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sbc_enc_sink_setcaps (GstSbcEnc * enc, GstCaps * caps)
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{
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GstStructure *structure;
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gint rate, channels;
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/* FIXME: what to do with left-over samples at the end? can we encode them? */
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gst_audio_encoder_set_hard_min (audio_enc, TRUE);
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structure = gst_caps_get_structure (caps, 0);
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if (!gst_structure_get_int (structure, "rate", &rate))
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return FALSE;
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if (!gst_structure_get_int (structure, "channels", &channels))
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/* and configure encoder based on the output caps we negotiated */
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if (enc->rate == 16000)
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enc->sbc.frequency = SBC_FREQ_16000;
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else if (enc->rate == 32000)
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enc->sbc.frequency = SBC_FREQ_32000;
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else if (enc->rate == 44100)
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enc->sbc.frequency = SBC_FREQ_44100;
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else if (enc->rate == 48000)
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enc->sbc.frequency = SBC_FREQ_48000;
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else
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return FALSE;
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enc->rate = rate;
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enc->channels = channels;
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return sbc_enc_negotiate_output_caps (enc, caps);
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}
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static gboolean
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gst_sbc_enc_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
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{
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GstSbcEnc *enc = GST_SBC_ENC (parent);
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gboolean ret;
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_CAPS:{
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GstCaps *caps;
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gst_event_parse_caps (event, &caps);
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ret = sbc_enc_sink_setcaps (enc, caps);
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break;
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}
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default:
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ret = gst_pad_event_default (pad, parent, event);
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break;
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}
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return ret;
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}
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/* configure encoder based on output caps */
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static gboolean
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gst_sbc_enc_fill_sbc_params (GstSbcEnc * enc, GstCaps * caps)
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{
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if (!gst_caps_is_fixed (caps)) {
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GST_DEBUG_OBJECT (enc, "output caps %" GST_PTR_FORMAT " not fixed!", caps);
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return FALSE;
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}
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if (!gst_sbc_util_fill_sbc_params (&enc->sbc, caps))
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if (enc->blocks == 4)
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enc->sbc.blocks = SBC_BLK_4;
|
||||
else if (enc->blocks == 8)
|
||||
enc->sbc.blocks = SBC_BLK_8;
|
||||
else if (enc->blocks == 12)
|
||||
enc->sbc.blocks = SBC_BLK_12;
|
||||
else if (enc->blocks == 16)
|
||||
enc->sbc.blocks = SBC_BLK_16;
|
||||
else
|
||||
return FALSE;
|
||||
|
||||
if (enc->rate != 0 && gst_sbc_parse_rate_from_sbc (enc->sbc.frequency)
|
||||
!= enc->rate)
|
||||
goto fail;
|
||||
enc->sbc.subbands = (enc->subbands == 4) ? SBC_SB_4 : SBC_SB_8;
|
||||
enc->sbc.bitpool = enc->bitpool;
|
||||
|
||||
if (enc->channels != 0 && gst_sbc_get_channel_number (enc->sbc.mode)
|
||||
!= enc->channels)
|
||||
goto fail;
|
||||
if (channel_mode == NULL || allocation_method == NULL)
|
||||
return FALSE;
|
||||
|
||||
if (enc->blocks != 0 && gst_sbc_parse_blocks_from_sbc (enc->sbc.blocks)
|
||||
!= enc->blocks)
|
||||
goto fail;
|
||||
if (strcmp (channel_mode, "joint") == 0)
|
||||
enc->sbc.mode = SBC_MODE_JOINT_STEREO;
|
||||
else if (strcmp (channel_mode, "stereo") == 0)
|
||||
enc->sbc.mode = SBC_MODE_STEREO;
|
||||
else if (strcmp (channel_mode, "dual") == 0)
|
||||
enc->sbc.mode = SBC_MODE_DUAL_CHANNEL;
|
||||
else if (strcmp (channel_mode, "mono") == 0)
|
||||
enc->sbc.mode = SBC_MODE_MONO;
|
||||
else if (strcmp (channel_mode, "auto") == 0)
|
||||
enc->sbc.mode = SBC_MODE_JOINT_STEREO;
|
||||
else
|
||||
return FALSE;
|
||||
|
||||
if (enc->subbands != 0
|
||||
&& gst_sbc_parse_subbands_from_sbc (enc->sbc.subbands) != enc->subbands)
|
||||
goto fail;
|
||||
if (strcmp (allocation_method, "loudness") == 0)
|
||||
enc->sbc.allocation = SBC_AM_LOUDNESS;
|
||||
else if (strcmp (allocation_method, "snr") == 0)
|
||||
enc->sbc.allocation = SBC_AM_SNR;
|
||||
else
|
||||
return FALSE;
|
||||
|
||||
if (enc->mode != SBC_ENC_DEFAULT_CHANNEL_MODE && enc->sbc.mode != enc->mode)
|
||||
goto fail;
|
||||
if (!gst_audio_encoder_set_output_format (audio_enc, output_caps))
|
||||
return FALSE;
|
||||
|
||||
if (enc->allocation != SBC_AM_AUTO && enc->sbc.allocation != enc->allocation)
|
||||
goto fail;
|
||||
|
||||
if (enc->bitpool != SBC_ENC_BITPOOL_AUTO && enc->sbc.bitpool != enc->bitpool)
|
||||
goto fail;
|
||||
|
||||
enc->codesize = sbc_get_codesize (&enc->sbc);
|
||||
enc->frame_length = sbc_get_frame_length (&enc->sbc);
|
||||
enc->frame_duration = sbc_get_frame_duration (&enc->sbc) * 1000;
|
||||
|
||||
GST_DEBUG_OBJECT (enc, "codesize: %d, frame_length: %d, frame_duration:"
|
||||
" %d", enc->codesize, enc->frame_length, enc->frame_duration);
|
||||
|
||||
return TRUE;
|
||||
|
||||
fail:
|
||||
memset (&enc->sbc, 0, sizeof (sbc_t));
|
||||
return FALSE;
|
||||
return gst_audio_encoder_negotiate (audio_enc);
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
sbc_enc_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
|
||||
gst_sbc_enc_handle_frame (GstAudioEncoder * audio_enc, GstBuffer * buffer)
|
||||
{
|
||||
GstSbcEnc *enc = GST_SBC_ENC (parent);
|
||||
GstAdapter *adapter = enc->adapter;
|
||||
GstFlowReturn res = GST_FLOW_OK;
|
||||
GstSbcEnc *enc = GST_SBC_ENC (audio_enc);
|
||||
GstMapInfo in_map, out_map;
|
||||
GstBuffer *outbuf = NULL;
|
||||
guint samples_per_frame, frames, i = 0;
|
||||
|
||||
if (enc->codesize == 0)
|
||||
goto not_negotiated;
|
||||
/* no fancy draining */
|
||||
if (buffer == NULL)
|
||||
return GST_FLOW_OK;
|
||||
|
||||
gst_adapter_push (adapter, buffer);
|
||||
if (G_UNLIKELY (enc->channels == 0 || enc->blocks == 0 || enc->subbands == 0))
|
||||
return GST_FLOW_NOT_NEGOTIATED;
|
||||
|
||||
while (gst_adapter_available (adapter) >= enc->codesize) {
|
||||
GstMapInfo out_map;
|
||||
GstBuffer *outbuf;
|
||||
const guint8 *data;
|
||||
gint consumed;
|
||||
samples_per_frame = enc->channels * enc->blocks * enc->subbands;
|
||||
|
||||
if (!gst_buffer_map (buffer, &in_map, GST_MAP_READ))
|
||||
goto map_failed;
|
||||
|
||||
frames = in_map.size / (samples_per_frame * sizeof (gint16));
|
||||
|
||||
GST_LOG_OBJECT (enc,
|
||||
"encoding %" G_GSIZE_FORMAT " samples into %u SBC frames",
|
||||
in_map.size / (enc->channels * sizeof (gint16)), frames);
|
||||
|
||||
if (frames > 0) {
|
||||
gsize frame_len;
|
||||
|
||||
frame_len = sbc_get_frame_length (&enc->sbc);
|
||||
outbuf = gst_audio_encoder_allocate_output_buffer (audio_enc,
|
||||
frames * frame_len);
|
||||
|
||||
if (outbuf == NULL)
|
||||
goto no_buffer;
|
||||
|
||||
outbuf = gst_buffer_new_and_alloc (enc->frame_length);
|
||||
gst_buffer_map (outbuf, &out_map, GST_MAP_WRITE);
|
||||
|
||||
data = gst_adapter_map (adapter, enc->codesize);
|
||||
for (i = 0; i < frames; ++i) {
|
||||
gssize ret, written = 0;
|
||||
|
||||
consumed = sbc_encode (&enc->sbc, (gpointer) data,
|
||||
enc->codesize, out_map.data, out_map.size, NULL);
|
||||
ret = sbc_encode (&enc->sbc, in_map.data + (i * samples_per_frame * 2),
|
||||
samples_per_frame * 2, out_map.data + (i * frame_len), frame_len,
|
||||
&written);
|
||||
|
||||
if (ret < 0 || written != frame_len) {
|
||||
GST_WARNING_OBJECT (enc, "encoding error, ret = %" G_GSSIZE_FORMAT ", "
|
||||
"written = %" G_GSSIZE_FORMAT, ret, written);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
gst_adapter_unmap (adapter);
|
||||
gst_buffer_unmap (outbuf, &out_map);
|
||||
|
||||
if (consumed <= 0) {
|
||||
GST_DEBUG_OBJECT (enc, "consumed < 0, codesize: %d", enc->codesize);
|
||||
gst_buffer_unref (outbuf);
|
||||
break;
|
||||
}
|
||||
gst_adapter_flush (adapter, consumed);
|
||||
|
||||
/* FIXME: this is not right if we don't have a 1:1 mapping of
|
||||
* input and output data */
|
||||
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buffer);
|
||||
/* we have only 1 frame */
|
||||
GST_BUFFER_DURATION (outbuf) = enc->frame_duration;
|
||||
|
||||
res = gst_pad_push (enc->srcpad, outbuf);
|
||||
|
||||
if (res != GST_FLOW_OK)
|
||||
break;
|
||||
if (i > 0)
|
||||
gst_buffer_set_size (outbuf, i * frame_len);
|
||||
else
|
||||
gst_buffer_replace (&outbuf, NULL);
|
||||
}
|
||||
|
||||
return res;
|
||||
done:
|
||||
|
||||
not_negotiated:
|
||||
gst_buffer_unmap (buffer, &in_map);
|
||||
|
||||
return gst_audio_encoder_finish_frame (audio_enc, outbuf,
|
||||
i * (samples_per_frame / enc->channels));
|
||||
|
||||
/* ERRORS */
|
||||
no_buffer:
|
||||
{
|
||||
GST_ERROR_OBJECT (enc, "output caps not negotiated yet");
|
||||
gst_buffer_unref (buffer);
|
||||
return GST_FLOW_NOT_NEGOTIATED;
|
||||
GST_ERROR_OBJECT (enc, "could not allocate output buffer");
|
||||
goto done;
|
||||
}
|
||||
map_failed:
|
||||
{
|
||||
GST_ERROR_OBJECT (enc, "could not map input buffer");
|
||||
goto done;
|
||||
}
|
||||
}
|
||||
|
||||
static GstStateChangeReturn
|
||||
sbc_enc_change_state (GstElement * element, GstStateChange transition)
|
||||
static gboolean
|
||||
gst_sbc_enc_start (GstAudioEncoder * audio_enc)
|
||||
{
|
||||
GstSbcEnc *enc = GST_SBC_ENC (element);
|
||||
GstSbcEnc *enc = GST_SBC_ENC (audio_enc);
|
||||
|
||||
switch (transition) {
|
||||
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
||||
GST_DEBUG ("Setup subband codec");
|
||||
sbc_init (&enc->sbc, 0);
|
||||
break;
|
||||
GST_INFO_OBJECT (enc, "Setup subband codec");
|
||||
sbc_init (&enc->sbc, 0);
|
||||
|
||||
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
||||
GST_DEBUG ("Finish subband codec");
|
||||
sbc_finish (&enc->sbc);
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_sbc_enc_finalize (GObject * object)
|
||||
static gboolean
|
||||
gst_sbc_enc_stop (GstAudioEncoder * audio_enc)
|
||||
{
|
||||
GstSbcEnc *enc = GST_SBC_ENC (object);
|
||||
GstSbcEnc *enc = GST_SBC_ENC (audio_enc);
|
||||
|
||||
if (enc->adapter != NULL) {
|
||||
g_object_unref (enc->adapter);
|
||||
enc->adapter = NULL;
|
||||
}
|
||||
GST_INFO_OBJECT (enc, "Finish subband codec");
|
||||
sbc_finish (&enc->sbc);
|
||||
|
||||
G_OBJECT_CLASS (parent_class)->finalize (object);
|
||||
}
|
||||
enc->subbands = 0;
|
||||
enc->blocks = 0;
|
||||
enc->rate = 0;
|
||||
enc->channels = 0;
|
||||
enc->bitpool = 0;
|
||||
|
||||
static void
|
||||
gst_sbc_enc_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstSbcEnc *enc = GST_SBC_ENC (object);
|
||||
|
||||
/* changes to those properties will only happen on the next caps
|
||||
* negotiation */
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_MODE:
|
||||
enc->mode = g_value_get_enum (value);
|
||||
break;
|
||||
case PROP_ALLOCATION:
|
||||
enc->allocation = g_value_get_enum (value);
|
||||
break;
|
||||
case PROP_BLOCKS:
|
||||
enc->blocks = g_value_get_enum (value);
|
||||
break;
|
||||
case PROP_SUBBANDS:
|
||||
enc->subbands = g_value_get_enum (value);
|
||||
break;
|
||||
case PROP_BITPOOL:
|
||||
enc->bitpool = g_value_get_int (value);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_sbc_enc_get_property (GObject * object, guint prop_id,
|
||||
GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstSbcEnc *enc = GST_SBC_ENC (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_MODE:
|
||||
g_value_set_enum (value, enc->mode);
|
||||
break;
|
||||
case PROP_ALLOCATION:
|
||||
g_value_set_enum (value, enc->allocation);
|
||||
break;
|
||||
case PROP_BLOCKS:
|
||||
g_value_set_enum (value, enc->blocks);
|
||||
break;
|
||||
case PROP_SUBBANDS:
|
||||
g_value_set_enum (value, enc->subbands);
|
||||
break;
|
||||
case PROP_BITPOOL:
|
||||
g_value_set_int (value, enc->bitpool);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_sbc_enc_class_init (GstSbcEncClass * klass)
|
||||
{
|
||||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||||
GstAudioEncoderClass *encoder_class = GST_AUDIO_ENCODER_CLASS (klass);
|
||||
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
|
||||
|
||||
parent_class = g_type_class_peek_parent (klass);
|
||||
|
||||
object_class->set_property = gst_sbc_enc_set_property;
|
||||
object_class->get_property = gst_sbc_enc_get_property;
|
||||
object_class->finalize = gst_sbc_enc_finalize;
|
||||
|
||||
element_class->change_state = GST_DEBUG_FUNCPTR (sbc_enc_change_state);
|
||||
|
||||
g_object_class_install_property (object_class, PROP_MODE,
|
||||
g_param_spec_enum ("channel-mode", "Channel Mode",
|
||||
"Channel mode", GST_TYPE_SBC_CHANNEL_MODE,
|
||||
SBC_ENC_DEFAULT_CHANNEL_MODE, G_PARAM_READWRITE));
|
||||
|
||||
g_object_class_install_property (object_class, PROP_ALLOCATION,
|
||||
g_param_spec_enum ("allocation-method", "Allocation Method",
|
||||
"Allocation method", GST_TYPE_SBC_ALLOCATION_METHOD,
|
||||
SBC_ENC_DEFAULT_ALLOCATION_METHOD, G_PARAM_READWRITE));
|
||||
|
||||
g_object_class_install_property (object_class, PROP_BLOCKS,
|
||||
g_param_spec_enum ("blocks", "Blocks",
|
||||
"Blocks", GST_TYPE_SBC_BLOCKS,
|
||||
SBC_ENC_DEFAULT_BLOCKS, G_PARAM_READWRITE));
|
||||
|
||||
g_object_class_install_property (object_class, PROP_SUBBANDS,
|
||||
g_param_spec_enum ("subbands", "Sub bands",
|
||||
"Number of sub bands", GST_TYPE_SBC_SUBBANDS,
|
||||
SBC_ENC_DEFAULT_SUB_BANDS, G_PARAM_READWRITE));
|
||||
|
||||
g_object_class_install_property (object_class, PROP_BITPOOL,
|
||||
g_param_spec_int ("bitpool", "Bitpool",
|
||||
"Bitpool (use 1 for automatic selection)",
|
||||
SBC_ENC_BITPOOL_AUTO, SBC_ENC_BITPOOL_MAX,
|
||||
SBC_ENC_BITPOOL_AUTO, G_PARAM_READWRITE));
|
||||
encoder_class->start = GST_DEBUG_FUNCPTR (gst_sbc_enc_start);
|
||||
encoder_class->stop = GST_DEBUG_FUNCPTR (gst_sbc_enc_stop);
|
||||
encoder_class->set_format = GST_DEBUG_FUNCPTR (gst_sbc_enc_set_format);
|
||||
encoder_class->handle_frame = GST_DEBUG_FUNCPTR (gst_sbc_enc_handle_frame);
|
||||
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&sbc_enc_sink_factory));
|
||||
|
@ -609,38 +354,9 @@ gst_sbc_enc_class_init (GstSbcEncClass * klass)
|
|||
static void
|
||||
gst_sbc_enc_init (GstSbcEnc * self)
|
||||
{
|
||||
self->sinkpad =
|
||||
gst_pad_new_from_static_template (&sbc_enc_sink_factory, "sink");
|
||||
gst_pad_set_event_function (self->sinkpad,
|
||||
GST_DEBUG_FUNCPTR (gst_sbc_enc_sink_event));
|
||||
gst_element_add_pad (GST_ELEMENT (self), self->sinkpad);
|
||||
|
||||
self->srcpad = gst_pad_new_from_static_template (&sbc_enc_src_factory, "src");
|
||||
#if 0
|
||||
gst_pad_set_getcaps_function (self->srcpad,
|
||||
GST_DEBUG_FUNCPTR (sbc_enc_src_getcaps));
|
||||
#endif
|
||||
gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
|
||||
|
||||
gst_pad_set_chain_function (self->sinkpad, GST_DEBUG_FUNCPTR (sbc_enc_chain));
|
||||
|
||||
self->subbands = SBC_ENC_DEFAULT_SUB_BANDS;
|
||||
self->blocks = SBC_ENC_DEFAULT_BLOCKS;
|
||||
self->mode = SBC_ENC_DEFAULT_CHANNEL_MODE;
|
||||
self->allocation = SBC_ENC_DEFAULT_ALLOCATION_METHOD;
|
||||
self->rate = SBC_ENC_DEFAULT_RATE;
|
||||
self->channels = SBC_ENC_DEFAULT_CHANNELS;
|
||||
self->bitpool = SBC_ENC_BITPOOL_AUTO;
|
||||
|
||||
self->frame_length = 0;
|
||||
self->frame_duration = 0;
|
||||
|
||||
self->adapter = gst_adapter_new ();
|
||||
}
|
||||
|
||||
gboolean
|
||||
gst_sbc_enc_plugin_init (GstPlugin * plugin)
|
||||
{
|
||||
return gst_element_register (plugin, "sbcenc",
|
||||
GST_RANK_NONE, GST_TYPE_SBC_ENC);
|
||||
self->subbands = 0;
|
||||
self->blocks = 0;
|
||||
self->rate = 0;
|
||||
self->channels = 0;
|
||||
self->bitpool = 0;
|
||||
}
|
||||
|
|
|
@ -1,9 +1,6 @@
|
|||
/*
|
||||
*
|
||||
* BlueZ - Bluetooth protocol stack for Linux
|
||||
*
|
||||
/* GStreamer SBC audio encoder
|
||||
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
|
||||
*
|
||||
* Copyright (C) 2013 Tim-Philipp Müller <tim centricular net>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
|
@ -22,7 +19,7 @@
|
|||
*/
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/base/gstadapter.h>
|
||||
#include <gst/audio/audio.h>
|
||||
|
||||
#include <sbc/sbc.h>
|
||||
|
||||
|
@ -43,33 +40,22 @@ typedef struct _GstSbcEnc GstSbcEnc;
|
|||
typedef struct _GstSbcEncClass GstSbcEncClass;
|
||||
|
||||
struct _GstSbcEnc {
|
||||
GstElement element;
|
||||
GstAudioEncoder audio_encoder;
|
||||
|
||||
GstPad *sinkpad;
|
||||
GstPad *srcpad;
|
||||
GstAdapter *adapter;
|
||||
/*< private >*/
|
||||
gint rate;
|
||||
gint channels;
|
||||
gint blocks;
|
||||
gint subbands;
|
||||
gint bitpool;
|
||||
|
||||
gint rate;
|
||||
gint channels;
|
||||
gint mode;
|
||||
gint blocks;
|
||||
gint allocation;
|
||||
gint subbands;
|
||||
gint bitpool;
|
||||
|
||||
guint codesize;
|
||||
gint frame_length;
|
||||
gint frame_duration;
|
||||
|
||||
sbc_t sbc;
|
||||
sbc_t sbc;
|
||||
};
|
||||
|
||||
struct _GstSbcEncClass {
|
||||
GstElementClass parent_class;
|
||||
GstAudioEncoderClass audio_encoder_class;
|
||||
};
|
||||
|
||||
GType gst_sbc_enc_get_type(void);
|
||||
|
||||
gboolean gst_sbc_enc_plugin_init(GstPlugin *plugin);
|
||||
GType gst_sbc_enc_get_type (void);
|
||||
|
||||
G_END_DECLS
|
||||
|
|
|
@ -1,400 +0,0 @@
|
|||
/* SBC audio utilities
|
||||
* BlueZ - Bluetooth protocol stack for Linux
|
||||
*
|
||||
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
|
||||
*
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 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
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser 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
|
||||
*
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include <config.h>
|
||||
#endif
|
||||
|
||||
#include <math.h>
|
||||
#include "gstsbcutil.h"
|
||||
|
||||
/*
|
||||
* Selects one rate from a list of possible rates
|
||||
* TODO - use a better approach to this (it is selecting the last element)
|
||||
*/
|
||||
gint
|
||||
gst_sbc_select_rate_from_list (const GValue * value)
|
||||
{
|
||||
guint size = gst_value_list_get_size (value);
|
||||
return g_value_get_int (gst_value_list_get_value (value, size - 1));
|
||||
}
|
||||
|
||||
/*
|
||||
* Selects one number of channels option from a range of possible numbers
|
||||
* TODO - use a better approach to this (it is selecting the maximum value)
|
||||
*/
|
||||
gint
|
||||
gst_sbc_select_channels_from_range (const GValue * value)
|
||||
{
|
||||
return gst_value_get_int_range_max (value);
|
||||
}
|
||||
|
||||
/*
|
||||
* Selects one number of blocks from a list of possible blocks
|
||||
* TODO - use a better approach to this (it is selecting the last element)
|
||||
*/
|
||||
gint
|
||||
gst_sbc_select_blocks_from_list (const GValue * value)
|
||||
{
|
||||
guint size = gst_value_list_get_size (value);
|
||||
return g_value_get_int (gst_value_list_get_value (value, size - 1));
|
||||
}
|
||||
|
||||
/*
|
||||
* Selects one number of subbands from a list
|
||||
* TODO - use a better approach to this (it is selecting the last element)
|
||||
*/
|
||||
gint
|
||||
gst_sbc_select_subbands_from_list (const GValue * value)
|
||||
{
|
||||
guint size = gst_value_list_get_size (value);
|
||||
return g_value_get_int (gst_value_list_get_value (value, size - 1));
|
||||
}
|
||||
|
||||
/*
|
||||
* Selects one bitpool option from a range
|
||||
* TODO - use a better approach to this (it is selecting the maximum value)
|
||||
*/
|
||||
gint
|
||||
gst_sbc_select_bitpool_from_range (const GValue * value)
|
||||
{
|
||||
return gst_value_get_int_range_max (value);
|
||||
}
|
||||
|
||||
/*
|
||||
* Selects one allocation mode from the ones on the list
|
||||
* TODO - use a better approach
|
||||
*/
|
||||
const gchar *
|
||||
gst_sbc_get_allocation_from_list (const GValue * value)
|
||||
{
|
||||
guint size = gst_value_list_get_size (value);
|
||||
return g_value_get_string (gst_value_list_get_value (value, size - 1));
|
||||
}
|
||||
|
||||
/*
|
||||
* Selects one mode from the ones on the list
|
||||
*/
|
||||
const gchar *
|
||||
gst_sbc_get_mode_from_list (const GValue * list, gint channels)
|
||||
{
|
||||
unsigned int i;
|
||||
const GValue *value;
|
||||
const gchar *aux;
|
||||
gboolean joint, stereo, dual, mono;
|
||||
guint size = gst_value_list_get_size (list);
|
||||
|
||||
joint = stereo = dual = mono = FALSE;
|
||||
|
||||
for (i = 0; i < size; i++) {
|
||||
value = gst_value_list_get_value (list, i);
|
||||
aux = g_value_get_string (value);
|
||||
if (strcmp ("joint", aux) == 0)
|
||||
joint = TRUE;
|
||||
else if (strcmp ("stereo", aux) == 0)
|
||||
stereo = TRUE;
|
||||
else if (strcmp ("dual", aux) == 0)
|
||||
dual = TRUE;
|
||||
else if (strcmp ("mono", aux) == 0)
|
||||
mono = TRUE;
|
||||
}
|
||||
|
||||
if (channels == 1 && mono)
|
||||
return "mono";
|
||||
else if (channels == 2) {
|
||||
if (joint)
|
||||
return "joint";
|
||||
else if (stereo)
|
||||
return "stereo";
|
||||
else if (dual)
|
||||
return "dual";
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
gint
|
||||
gst_sbc_parse_rate_from_sbc (gint frequency)
|
||||
{
|
||||
switch (frequency) {
|
||||
case SBC_FREQ_16000:
|
||||
return 16000;
|
||||
case SBC_FREQ_32000:
|
||||
return 32000;
|
||||
case SBC_FREQ_44100:
|
||||
return 44100;
|
||||
case SBC_FREQ_48000:
|
||||
return 48000;
|
||||
default:
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
gint
|
||||
gst_sbc_parse_rate_to_sbc (gint rate)
|
||||
{
|
||||
switch (rate) {
|
||||
case 16000:
|
||||
return SBC_FREQ_16000;
|
||||
case 32000:
|
||||
return SBC_FREQ_32000;
|
||||
case 44100:
|
||||
return SBC_FREQ_44100;
|
||||
case 48000:
|
||||
return SBC_FREQ_48000;
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
gint
|
||||
gst_sbc_get_channel_number (gint mode)
|
||||
{
|
||||
switch (mode) {
|
||||
case SBC_MODE_JOINT_STEREO:
|
||||
case SBC_MODE_STEREO:
|
||||
case SBC_MODE_DUAL_CHANNEL:
|
||||
return 2;
|
||||
case SBC_MODE_MONO:
|
||||
return 1;
|
||||
default:
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
gint
|
||||
gst_sbc_parse_subbands_from_sbc (gint subbands)
|
||||
{
|
||||
switch (subbands) {
|
||||
case SBC_SB_4:
|
||||
return 4;
|
||||
case SBC_SB_8:
|
||||
return 8;
|
||||
default:
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
gint
|
||||
gst_sbc_parse_subbands_to_sbc (gint subbands)
|
||||
{
|
||||
switch (subbands) {
|
||||
case 4:
|
||||
return SBC_SB_4;
|
||||
case 8:
|
||||
return SBC_SB_8;
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
gint
|
||||
gst_sbc_parse_blocks_from_sbc (gint blocks)
|
||||
{
|
||||
switch (blocks) {
|
||||
case SBC_BLK_4:
|
||||
return 4;
|
||||
case SBC_BLK_8:
|
||||
return 8;
|
||||
case SBC_BLK_12:
|
||||
return 12;
|
||||
case SBC_BLK_16:
|
||||
return 16;
|
||||
default:
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
gint
|
||||
gst_sbc_parse_blocks_to_sbc (gint blocks)
|
||||
{
|
||||
switch (blocks) {
|
||||
case 4:
|
||||
return SBC_BLK_4;
|
||||
case 8:
|
||||
return SBC_BLK_8;
|
||||
case 12:
|
||||
return SBC_BLK_12;
|
||||
case 16:
|
||||
return SBC_BLK_16;
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
const gchar *
|
||||
gst_sbc_parse_mode_from_sbc (gint mode)
|
||||
{
|
||||
switch (mode) {
|
||||
case SBC_MODE_MONO:
|
||||
return "mono";
|
||||
case SBC_MODE_DUAL_CHANNEL:
|
||||
return "dual";
|
||||
case SBC_MODE_STEREO:
|
||||
return "stereo";
|
||||
case SBC_MODE_JOINT_STEREO:
|
||||
case SBC_MODE_AUTO:
|
||||
return "joint";
|
||||
default:
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
gint
|
||||
gst_sbc_parse_mode_to_sbc (const gchar * mode)
|
||||
{
|
||||
if (g_ascii_strcasecmp (mode, "joint") == 0)
|
||||
return SBC_MODE_JOINT_STEREO;
|
||||
else if (g_ascii_strcasecmp (mode, "stereo") == 0)
|
||||
return SBC_MODE_STEREO;
|
||||
else if (g_ascii_strcasecmp (mode, "dual") == 0)
|
||||
return SBC_MODE_DUAL_CHANNEL;
|
||||
else if (g_ascii_strcasecmp (mode, "mono") == 0)
|
||||
return SBC_MODE_MONO;
|
||||
else if (g_ascii_strcasecmp (mode, "auto") == 0)
|
||||
return SBC_MODE_JOINT_STEREO;
|
||||
else
|
||||
return -1;
|
||||
}
|
||||
|
||||
const gchar *
|
||||
gst_sbc_parse_allocation_from_sbc (gint alloc)
|
||||
{
|
||||
switch (alloc) {
|
||||
case SBC_AM_LOUDNESS:
|
||||
return "loudness";
|
||||
case SBC_AM_SNR:
|
||||
return "snr";
|
||||
case SBC_AM_AUTO:
|
||||
return "loudness";
|
||||
default:
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
gint
|
||||
gst_sbc_parse_allocation_to_sbc (const gchar * allocation)
|
||||
{
|
||||
if (g_ascii_strcasecmp (allocation, "loudness") == 0)
|
||||
return SBC_AM_LOUDNESS;
|
||||
else if (g_ascii_strcasecmp (allocation, "snr") == 0)
|
||||
return SBC_AM_SNR;
|
||||
else
|
||||
return SBC_AM_LOUDNESS;
|
||||
}
|
||||
|
||||
GstCaps *
|
||||
gst_sbc_parse_caps_from_sbc (sbc_t * sbc)
|
||||
{
|
||||
GstCaps *caps;
|
||||
const gchar *mode_str;
|
||||
const gchar *allocation_str;
|
||||
|
||||
mode_str = gst_sbc_parse_mode_from_sbc (sbc->mode);
|
||||
allocation_str = gst_sbc_parse_allocation_from_sbc (sbc->allocation);
|
||||
caps = gst_caps_new_simple ("audio/x-sbc",
|
||||
"rate", G_TYPE_INT,
|
||||
gst_sbc_parse_rate_from_sbc (sbc->frequency),
|
||||
"channels", G_TYPE_INT,
|
||||
gst_sbc_get_channel_number (sbc->mode),
|
||||
"channel-mode", G_TYPE_STRING, mode_str,
|
||||
"subbands", G_TYPE_INT,
|
||||
gst_sbc_parse_subbands_from_sbc (sbc->subbands),
|
||||
"blocks", G_TYPE_INT,
|
||||
gst_sbc_parse_blocks_from_sbc (sbc->blocks),
|
||||
"allocation-method", G_TYPE_STRING, allocation_str,
|
||||
"bitpool", G_TYPE_INT, sbc->bitpool, NULL);
|
||||
|
||||
return caps;
|
||||
}
|
||||
|
||||
/* FIXME: this function is not needed, just use gst_structure_set() */
|
||||
/**
|
||||
* Sets the int field_value to the param "field" on the structure.
|
||||
* value is used to do the operation, it must be a uninitialized (zero-filled)
|
||||
* GValue, it will be left unitialized at the end of the function.
|
||||
*/
|
||||
void
|
||||
gst_sbc_util_set_structure_int_param (GstStructure * structure,
|
||||
const gchar * field, gint field_value, GValue * value)
|
||||
{
|
||||
value = g_value_init (value, G_TYPE_INT);
|
||||
g_value_set_int (value, field_value);
|
||||
gst_structure_set_value (structure, field, value);
|
||||
g_value_unset (value);
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the string field_value to the param "field" on the structure.
|
||||
* value is used to do the operation, it must be a uninitialized (zero-filled)
|
||||
* GValue, it will be left unitialized at the end of the function.
|
||||
*/
|
||||
void
|
||||
gst_sbc_util_set_structure_string_param (GstStructure * structure,
|
||||
const gchar * field, const gchar * field_value, GValue * value)
|
||||
{
|
||||
value = g_value_init (value, G_TYPE_STRING);
|
||||
g_value_set_string (value, field_value);
|
||||
gst_structure_set_value (structure, field, value);
|
||||
g_value_unset (value);
|
||||
}
|
||||
|
||||
gboolean
|
||||
gst_sbc_util_fill_sbc_params (sbc_t * sbc, GstCaps * caps)
|
||||
{
|
||||
GstStructure *structure;
|
||||
gint rate, channels, subbands, blocks, bitpool;
|
||||
const gchar *mode;
|
||||
const gchar *allocation;
|
||||
|
||||
g_assert (gst_caps_is_fixed (caps));
|
||||
|
||||
structure = gst_caps_get_structure (caps, 0);
|
||||
|
||||
if (!gst_structure_get_int (structure, "rate", &rate))
|
||||
return FALSE;
|
||||
if (!gst_structure_get_int (structure, "channels", &channels))
|
||||
return FALSE;
|
||||
if (!gst_structure_get_int (structure, "subbands", &subbands))
|
||||
return FALSE;
|
||||
if (!gst_structure_get_int (structure, "blocks", &blocks))
|
||||
return FALSE;
|
||||
if (!gst_structure_get_int (structure, "bitpool", &bitpool))
|
||||
return FALSE;
|
||||
|
||||
if (!(mode = gst_structure_get_string (structure, "channel-mode")))
|
||||
return FALSE;
|
||||
if (!(allocation = gst_structure_get_string (structure, "allocation-method")))
|
||||
return FALSE;
|
||||
|
||||
if (channels == 1 && strcmp (mode, "mono") != 0)
|
||||
return FALSE;
|
||||
|
||||
sbc->frequency = gst_sbc_parse_rate_to_sbc (rate);
|
||||
sbc->blocks = gst_sbc_parse_blocks_to_sbc (blocks);
|
||||
sbc->subbands = gst_sbc_parse_subbands_to_sbc (subbands);
|
||||
sbc->bitpool = bitpool;
|
||||
sbc->mode = gst_sbc_parse_mode_to_sbc (mode);
|
||||
sbc->allocation = gst_sbc_parse_allocation_to_sbc (allocation);
|
||||
|
||||
return TRUE;
|
||||
}
|
|
@ -1,71 +0,0 @@
|
|||
/* SBC audio utilities
|
||||
* BlueZ - Bluetooth protocol stack for Linux
|
||||
*
|
||||
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
|
||||
*
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 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
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser 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
|
||||
*
|
||||
*/
|
||||
|
||||
#include <gst/gst.h>
|
||||
|
||||
#include <sbc/sbc.h>
|
||||
#include <string.h>
|
||||
|
||||
#define SBC_AM_AUTO 0x02
|
||||
#define SBC_MODE_AUTO 0x04
|
||||
|
||||
gint gst_sbc_select_rate_from_list(const GValue *value);
|
||||
|
||||
gint gst_sbc_select_channels_from_range(const GValue *value);
|
||||
|
||||
gint gst_sbc_select_blocks_from_list(const GValue *value);
|
||||
|
||||
gint gst_sbc_select_subbands_from_list(const GValue *value);
|
||||
|
||||
gint gst_sbc_select_bitpool_from_range(const GValue *value);
|
||||
|
||||
const gchar *gst_sbc_get_allocation_from_list(const GValue *value);
|
||||
|
||||
const gchar *gst_sbc_get_mode_from_list(const GValue *value, gint channels);
|
||||
|
||||
gint gst_sbc_get_channel_number(gint mode);
|
||||
gint gst_sbc_parse_rate_from_sbc(gint frequency);
|
||||
gint gst_sbc_parse_rate_to_sbc(gint rate);
|
||||
|
||||
gint gst_sbc_parse_subbands_from_sbc(gint subbands);
|
||||
gint gst_sbc_parse_subbands_to_sbc(gint subbands);
|
||||
|
||||
gint gst_sbc_parse_blocks_from_sbc(gint blocks);
|
||||
gint gst_sbc_parse_blocks_to_sbc(gint blocks);
|
||||
|
||||
const gchar *gst_sbc_parse_mode_from_sbc(gint mode);
|
||||
gint gst_sbc_parse_mode_to_sbc(const gchar *mode);
|
||||
|
||||
const gchar *gst_sbc_parse_allocation_from_sbc(gint alloc);
|
||||
gint gst_sbc_parse_allocation_to_sbc(const gchar *allocation);
|
||||
|
||||
GstCaps *gst_sbc_parse_caps_from_sbc(sbc_t *sbc);
|
||||
|
||||
void gst_sbc_util_set_structure_int_param(GstStructure *structure,
|
||||
const gchar *field, gint field_value,
|
||||
GValue *value);
|
||||
|
||||
void gst_sbc_util_set_structure_string_param(GstStructure *structure,
|
||||
const gchar *field, const gchar *field_value,
|
||||
GValue *value);
|
||||
|
||||
gboolean gst_sbc_util_fill_sbc_params(sbc_t *sbc, GstCaps *caps);
|
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Reference in a new issue