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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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750 lines
20 KiB
C++
750 lines
20 KiB
C++
/* GStreamer
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* Copyright (C) 2020 Seungha Yang <seungha@centricular.com>
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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 this 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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/**
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* SECTION:element-mfmp3enc
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* @title: mfmp3enc
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*
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* This element encodes raw audio into MP3 compressed data.
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*
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* ## Example pipelines
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* |[
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* gst-launch-1.0 -v audiotestsrc ! mfmp3enc ! filesink location=test.mp3
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* ]| This example pipeline will encode a test audio source to MP3 using
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* Media Foundation encoder
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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 <gst/gst.h>
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#include <gst/pbutils/pbutils.h>
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#include "gstmfaudioenc.h"
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#include "gstmfmp3enc.h"
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#include <wrl.h>
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#include <set>
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#include <vector>
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#include <string>
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/* *INDENT-OFF* */
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using namespace Microsoft::WRL;
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/* *INDENT-ON* */
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GST_DEBUG_CATEGORY (gst_mf_mp3_enc_debug);
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#define GST_CAT_DEFAULT gst_mf_mp3_enc_debug
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enum
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{
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PROP_0,
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PROP_BITRATE,
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};
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#define DEFAULT_BITRATE (0)
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typedef struct _GstMFMp3Enc
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{
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GstMFAudioEnc parent;
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/* properties */
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guint bitrate;
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} GstMFMp3Enc;
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typedef struct _GstMFMp3EncClass
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{
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GstMFAudioEncClass parent_class;
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} GstMFMp3EncClass;
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/* *INDENT-OFF* */
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typedef struct
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{
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GstCaps *sink_caps;
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GstCaps *src_caps;
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gchar *device_name;
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guint32 enum_flags;
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guint device_index;
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std::set<UINT32> bitrate_list;
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} GstMFMp3EncClassData;
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/* *INDENT-ON* */
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static GstElementClass *parent_class = NULL;
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static void gst_mf_mp3_enc_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_mf_mp3_enc_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static gboolean gst_mf_mp3_enc_get_output_type (GstMFAudioEnc * mfenc,
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GstAudioInfo * info, IMFMediaType ** output_type);
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static gboolean gst_mf_mp3_enc_get_input_type (GstMFAudioEnc * mfenc,
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GstAudioInfo * info, IMFMediaType ** input_type);
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static gboolean gst_mf_mp3_enc_set_src_caps (GstMFAudioEnc * mfenc,
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GstAudioInfo * info);
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static void
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gst_mf_mp3_enc_class_init (GstMFMp3EncClass * klass, gpointer data)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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GstMFAudioEncClass *mfenc_class = GST_MF_AUDIO_ENC_CLASS (klass);
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GstMFMp3EncClassData *cdata = (GstMFMp3EncClassData *) data;
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gchar *long_name;
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gchar *classification;
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guint max_bitrate = 0;
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std::string bitrate_blurb;
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parent_class = (GstElementClass *) g_type_class_peek_parent (klass);
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gobject_class->get_property = gst_mf_mp3_enc_get_property;
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gobject_class->set_property = gst_mf_mp3_enc_set_property;
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bitrate_blurb = "Bitrate in bit/sec, (0 = auto), valid values are { 0";
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/* *INDENT-OFF* */
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for (auto iter: cdata->bitrate_list) {
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bitrate_blurb += ", " + std::to_string (iter);
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/* std::set<> stores values in a sorted fashion */
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max_bitrate = iter;
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}
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bitrate_blurb += " }";
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/* *INDENT-ON* */
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g_object_class_install_property (gobject_class, PROP_BITRATE,
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g_param_spec_uint ("bitrate", "Bitrate", bitrate_blurb.c_str (), 0,
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max_bitrate, DEFAULT_BITRATE,
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(GParamFlags) (GST_PARAM_MUTABLE_READY | G_PARAM_READWRITE |
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G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK)));
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long_name = g_strdup_printf ("Media Foundation %s", cdata->device_name);
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classification = g_strdup_printf ("Codec/Encoder/Audio%s",
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(cdata->enum_flags & MFT_ENUM_FLAG_HARDWARE) == MFT_ENUM_FLAG_HARDWARE ?
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"/Hardware" : "");
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gst_element_class_set_metadata (element_class, long_name,
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classification,
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"Microsoft Media Foundation MP3 Encoder",
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"Seungha Yang <seungha@centricular.com>");
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g_free (long_name);
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g_free (classification);
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gst_element_class_add_pad_template (element_class,
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gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
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cdata->sink_caps));
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gst_element_class_add_pad_template (element_class,
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gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
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cdata->src_caps));
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mfenc_class->get_output_type =
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GST_DEBUG_FUNCPTR (gst_mf_mp3_enc_get_output_type);
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mfenc_class->get_input_type =
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GST_DEBUG_FUNCPTR (gst_mf_mp3_enc_get_input_type);
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mfenc_class->set_src_caps = GST_DEBUG_FUNCPTR (gst_mf_mp3_enc_set_src_caps);
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mfenc_class->codec_id = MFAudioFormat_MP3;
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mfenc_class->enum_flags = cdata->enum_flags;
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mfenc_class->device_index = cdata->device_index;
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mfenc_class->frame_samples = 1152;
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g_free (cdata->device_name);
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gst_caps_unref (cdata->sink_caps);
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gst_caps_unref (cdata->src_caps);
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delete cdata;
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}
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static void
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gst_mf_mp3_enc_init (GstMFMp3Enc * self)
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{
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self->bitrate = DEFAULT_BITRATE;
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}
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static void
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gst_mf_mp3_enc_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstMFMp3Enc *self = (GstMFMp3Enc *) (object);
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switch (prop_id) {
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case PROP_BITRATE:
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g_value_set_uint (value, self->bitrate);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_mf_mp3_enc_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstMFMp3Enc *self = (GstMFMp3Enc *) (object);
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switch (prop_id) {
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case PROP_BITRATE:
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self->bitrate = g_value_get_uint (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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gst_mf_mp3_enc_get_output_type (GstMFAudioEnc * mfenc, GstAudioInfo * info,
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IMFMediaType ** output_type)
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{
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GstMFMp3Enc *self = (GstMFMp3Enc *) mfenc;
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GstMFTransform *transform = mfenc->transform;
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GList *output_list = NULL;
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GList *iter;
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ComPtr < IMFMediaType > target_output;
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std::vector < ComPtr < IMFMediaType >> filtered_types;
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std::set < UINT32 > bitrate_list;
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UINT32 bitrate;
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UINT32 target_bitrate = 0;
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HRESULT hr;
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if (!gst_mf_transform_get_output_available_types (transform, &output_list)) {
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GST_ERROR_OBJECT (self, "Couldn't get available output type");
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return FALSE;
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}
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/* 1. Filtering based on channels and sample rate */
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for (iter = output_list; iter; iter = g_list_next (iter)) {
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IMFMediaType *type = (IMFMediaType *) iter->data;
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GUID guid = GUID_NULL;
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UINT32 value;
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hr = type->GetGUID (MF_MT_MAJOR_TYPE, &guid);
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if (!gst_mf_result (hr))
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continue;
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if (!IsEqualGUID (guid, MFMediaType_Audio)) {
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GST_WARNING_OBJECT (self, "Major type is not audio");
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continue;
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}
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hr = type->GetGUID (MF_MT_SUBTYPE, &guid);
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if (!gst_mf_result (hr))
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continue;
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if (!IsEqualGUID (guid, MFAudioFormat_MP3)) {
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GST_WARNING_OBJECT (self, "Sub type is not MP3");
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continue;
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}
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hr = type->GetUINT32 (MF_MT_AUDIO_NUM_CHANNELS, &value);
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if (!gst_mf_result (hr))
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continue;
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if (value != GST_AUDIO_INFO_CHANNELS (info))
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continue;
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hr = type->GetUINT32 (MF_MT_AUDIO_SAMPLES_PER_SECOND, &value);
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if (!gst_mf_result (hr))
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continue;
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if (value != GST_AUDIO_INFO_RATE (info))
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continue;
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hr = type->GetUINT32 (MF_MT_AUDIO_AVG_BYTES_PER_SECOND, &value);
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if (!gst_mf_result (hr))
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continue;
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filtered_types.push_back (type);
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/* convert bytes to bit */
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bitrate_list.insert (value * 8);
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}
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g_list_free_full (output_list, (GDestroyNotify) gst_mf_media_type_release);
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if (filtered_types.empty ()) {
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GST_ERROR_OBJECT (self, "Couldn't find target output type");
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return FALSE;
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}
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GST_DEBUG_OBJECT (self, "have %d candidate output", filtered_types.size ());
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/* 2. Find the best matching bitrate */
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bitrate = self->bitrate;
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if (bitrate == 0) {
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/* default of MFT
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* https://docs.microsoft.com/en-us/windows/win32/medfound/mp3-audio-encoder
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*/
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if (GST_AUDIO_INFO_CHANNELS (info) == 1) {
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bitrate = 128000;
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} else {
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bitrate = 320000;
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}
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GST_DEBUG_OBJECT (self, "Calculated bitrate %d", bitrate);
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} else {
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GST_DEBUG_OBJECT (self, "Requested bitrate %d", bitrate);
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}
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GST_DEBUG_OBJECT (self, "Available bitrates");
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/* *INDENT-OFF* */
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for (auto it: bitrate_list)
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GST_DEBUG_OBJECT (self, "\t%d", it);
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/* Based on calculated or requested bitrate, find the closest supported
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* bitrate */
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{
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const auto it = bitrate_list.lower_bound (bitrate);
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if (it == bitrate_list.end()) {
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target_bitrate = *std::prev (it);
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} else {
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target_bitrate = *it;
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}
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}
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GST_DEBUG_OBJECT (self, "Selected target bitrate %d", target_bitrate);
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for (auto it: filtered_types) {
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UINT32 value = 0;
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it->GetUINT32 (MF_MT_AUDIO_AVG_BYTES_PER_SECOND, &value);
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if (value * 8 == target_bitrate) {
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target_output = it;
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break;
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}
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}
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/* *INDENT-ON* */
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if (!target_output) {
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GST_ERROR_OBJECT (self, "Failed to decide final output type");
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return FALSE;
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}
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*output_type = target_output.Detach ();
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return TRUE;
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}
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static gboolean
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gst_mf_mp3_enc_get_input_type (GstMFAudioEnc * mfenc, GstAudioInfo * info,
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IMFMediaType ** input_type)
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{
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GstMFMp3Enc *self = (GstMFMp3Enc *) mfenc;
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GstMFTransform *transform = mfenc->transform;
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GList *input_list = NULL;
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GList *iter;
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ComPtr < IMFMediaType > target_input;
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std::vector < ComPtr < IMFMediaType >> filtered_types;
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std::set < UINT32 > bitrate_list;
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HRESULT hr;
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if (!gst_mf_transform_get_input_available_types (transform, &input_list)) {
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GST_ERROR_OBJECT (self, "Couldn't get available output type");
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return FALSE;
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}
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/* 1. Filtering based on channels and sample rate */
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for (iter = input_list; iter; iter = g_list_next (iter)) {
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IMFMediaType *type = (IMFMediaType *) iter->data;
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GUID guid = GUID_NULL;
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UINT32 value;
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hr = type->GetGUID (MF_MT_MAJOR_TYPE, &guid);
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if (!gst_mf_result (hr))
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continue;
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if (!IsEqualGUID (guid, MFMediaType_Audio)) {
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GST_WARNING_OBJECT (self, "Major type is not audio");
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continue;
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}
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hr = type->GetGUID (MF_MT_SUBTYPE, &guid);
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if (!gst_mf_result (hr))
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continue;
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if (!IsEqualGUID (guid, MFAudioFormat_PCM)) {
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GST_WARNING_OBJECT (self, "Sub type is not PCM");
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continue;
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}
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hr = type->GetUINT32 (MF_MT_AUDIO_NUM_CHANNELS, &value);
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if (!gst_mf_result (hr))
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continue;
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if (value != GST_AUDIO_INFO_CHANNELS (info))
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continue;
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hr = type->GetUINT32 (MF_MT_AUDIO_SAMPLES_PER_SECOND, &value);
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if (!gst_mf_result (hr))
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continue;
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if (value != GST_AUDIO_INFO_RATE (info))
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continue;
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filtered_types.push_back (type);
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}
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g_list_free_full (input_list, (GDestroyNotify) gst_mf_media_type_release);
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if (filtered_types.empty ()) {
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GST_ERROR_OBJECT (self, "Couldn't find target input type");
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return FALSE;
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}
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GST_DEBUG_OBJECT (self, "Total %d input types are available",
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filtered_types.size ());
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/* Just select the first one */
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target_input = *filtered_types.begin ();
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*input_type = target_input.Detach ();
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return TRUE;
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}
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static gboolean
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gst_mf_mp3_enc_set_src_caps (GstMFAudioEnc * mfenc, GstAudioInfo * info)
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{
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GstMFMp3Enc *self = (GstMFMp3Enc *) mfenc;
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GstCaps *src_caps;
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gboolean ret;
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ComPtr < IMFMediaType > output_type;
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gint version = 1;
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if (!gst_mf_transform_get_output_current_type (mfenc->transform,
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&output_type)) {
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GST_ERROR_OBJECT (self, "Couldn't get current output type");
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return FALSE;
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}
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if (GST_AUDIO_INFO_RATE (info) == 32000 ||
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GST_AUDIO_INFO_RATE (info) == 44100 ||
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GST_AUDIO_INFO_RATE (info) == 48000)
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version = 1;
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else
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version = 2;
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src_caps = gst_caps_new_simple ("audio/mpeg",
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"mpegversion", G_TYPE_INT, 1,
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"mpegaudioversion", G_TYPE_INT, version,
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"layer", G_TYPE_INT, 3,
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"channels", G_TYPE_INT, GST_AUDIO_INFO_CHANNELS (info),
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"rate", G_TYPE_INT, GST_AUDIO_INFO_RATE (info), NULL);
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ret =
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gst_audio_encoder_set_output_format (GST_AUDIO_ENCODER (self), src_caps);
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if (!ret) {
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GST_WARNING_OBJECT (self,
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"Couldn't set output format %" GST_PTR_FORMAT, src_caps);
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}
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gst_caps_unref (src_caps);
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return ret;
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}
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static void
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gst_mf_mp3_enc_register (GstPlugin * plugin, guint rank,
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const gchar * device_name, guint32 enum_flags, guint device_index,
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GstCaps * sink_caps, GstCaps * src_caps,
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const std::set < UINT32 > &bitrate_list)
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{
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GType type;
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gchar *type_name;
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gchar *feature_name;
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gint i;
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GstMFMp3EncClassData *cdata;
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gboolean is_default = TRUE;
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GTypeInfo type_info = {
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sizeof (GstMFMp3EncClass),
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NULL,
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NULL,
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(GClassInitFunc) gst_mf_mp3_enc_class_init,
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NULL,
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NULL,
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sizeof (GstMFMp3Enc),
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0,
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(GInstanceInitFunc) gst_mf_mp3_enc_init,
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};
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cdata = new GstMFMp3EncClassData;
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cdata->sink_caps = sink_caps;
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cdata->src_caps = src_caps;
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cdata->device_name = g_strdup (device_name);
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cdata->enum_flags = enum_flags;
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cdata->device_index = device_index;
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cdata->bitrate_list = bitrate_list;
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type_info.class_data = cdata;
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type_name = g_strdup ("GstMFMp3Enc");
|
|
feature_name = g_strdup ("mfmp3enc");
|
|
|
|
i = 1;
|
|
while (g_type_from_name (type_name) != 0) {
|
|
g_free (type_name);
|
|
g_free (feature_name);
|
|
type_name = g_strdup_printf ("GstMFMp3Device%dEnc", i);
|
|
feature_name = g_strdup_printf ("mfmp3device%denc", i);
|
|
is_default = FALSE;
|
|
i++;
|
|
}
|
|
|
|
type =
|
|
g_type_register_static (GST_TYPE_MF_AUDIO_ENC, type_name, &type_info,
|
|
(GTypeFlags) 0);
|
|
|
|
/* make lower rank than default device */
|
|
if (rank > 0 && !is_default)
|
|
rank--;
|
|
|
|
if (!gst_element_register (plugin, feature_name, rank, type))
|
|
GST_WARNING ("Failed to register plugin '%s'", type_name);
|
|
|
|
g_free (type_name);
|
|
g_free (feature_name);
|
|
}
|
|
|
|
static gboolean
|
|
gst_mf_mp3_enc_create_template_caps (const std::set < UINT32 > &rate_list,
|
|
gint channels, GstCaps ** sink_caps, GstCaps ** src_caps)
|
|
{
|
|
GstCaps *sink = NULL;
|
|
GstCaps *src = NULL;
|
|
GValue rate_value = G_VALUE_INIT;
|
|
|
|
if (rate_list.empty ()) {
|
|
GST_WARNING ("No available rate for channels %d", channels);
|
|
return FALSE;
|
|
}
|
|
|
|
if (channels != 0) {
|
|
sink =
|
|
gst_caps_from_string ("audio/x-raw, "
|
|
"format = (string) " GST_AUDIO_NE (S16)
|
|
", layout = (string) interleaved");
|
|
src =
|
|
gst_caps_from_string ("audio/mpeg, mpegversion = (int) 1,"
|
|
"layer = (int) 3");
|
|
|
|
gst_caps_set_simple (sink, "channels", G_TYPE_INT, channels, NULL);
|
|
gst_caps_set_simple (src, "channels", G_TYPE_INT, channels, NULL);
|
|
} else {
|
|
sink =
|
|
gst_caps_from_string ("audio/x-raw, "
|
|
"format = (string) " GST_AUDIO_NE (S16)
|
|
", layout = (string) interleaved, channels = (int) [ 1, 2 ]");
|
|
src =
|
|
gst_caps_from_string ("audio/mpeg, mpegversion = (int) 1,"
|
|
"layer = (int) 3, channels = (int) [ 1, 2 ]");
|
|
}
|
|
|
|
g_value_init (&rate_value, GST_TYPE_LIST);
|
|
|
|
/* *INDENT-OFF* */
|
|
for (const auto &it: rate_list) {
|
|
GValue rate = G_VALUE_INIT;
|
|
|
|
g_value_init (&rate, G_TYPE_INT);
|
|
g_value_set_int (&rate, (gint) it);
|
|
gst_value_list_append_and_take_value (&rate_value, &rate);
|
|
}
|
|
/* *INDENT-ON* */
|
|
|
|
gst_caps_set_value (src, "rate", &rate_value);
|
|
gst_caps_set_value (sink, "rate", &rate_value);
|
|
|
|
g_value_unset (&rate_value);
|
|
|
|
if (*sink_caps == NULL)
|
|
*sink_caps = sink;
|
|
else
|
|
*sink_caps = gst_caps_merge (*sink_caps, sink);
|
|
|
|
if (*src_caps == NULL)
|
|
*src_caps = src;
|
|
else
|
|
*src_caps = gst_caps_merge (*src_caps, src);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_mf_mp3_enc_plugin_init_internal (GstPlugin * plugin, guint rank,
|
|
GstMFTransform * transform, guint device_index, guint32 enum_flags)
|
|
{
|
|
HRESULT hr;
|
|
gint i;
|
|
GstCaps *src_caps = NULL;
|
|
GstCaps *sink_caps = NULL;
|
|
gchar *device_name = NULL;
|
|
GList *output_list = NULL;
|
|
GList *iter;
|
|
std::set < UINT32 > mono_rate_list;
|
|
std::set < UINT32 > stereo_rate_list;
|
|
std::set < UINT32 > bitrate_list;
|
|
gboolean config_found = FALSE;
|
|
|
|
if (!gst_mf_transform_open (transform))
|
|
return;
|
|
|
|
g_object_get (transform, "device-name", &device_name, NULL);
|
|
if (!device_name) {
|
|
GST_WARNING_OBJECT (transform, "Unknown device name");
|
|
return;
|
|
}
|
|
|
|
if (!gst_mf_transform_get_output_available_types (transform, &output_list)) {
|
|
GST_WARNING_OBJECT (transform, "Couldn't get output types");
|
|
goto done;
|
|
}
|
|
|
|
GST_INFO_OBJECT (transform, "Have %d output type",
|
|
g_list_length (output_list));
|
|
|
|
for (iter = output_list, i = 0; iter; iter = g_list_next (iter), i++) {
|
|
UINT32 channels, rate, bitrate;
|
|
GUID guid = GUID_NULL;
|
|
IMFMediaType *type = (IMFMediaType *) iter->data;
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
gchar *msg = g_strdup_printf ("Output IMFMediaType %d", i);
|
|
gst_mf_dump_attributes ((IMFAttributes *) type, msg, GST_LEVEL_TRACE);
|
|
g_free (msg);
|
|
#endif
|
|
|
|
hr = type->GetGUID (MF_MT_MAJOR_TYPE, &guid);
|
|
if (!gst_mf_result (hr))
|
|
continue;
|
|
|
|
/* shouldn't happen */
|
|
if (!IsEqualGUID (guid, MFMediaType_Audio))
|
|
continue;
|
|
|
|
hr = type->GetGUID (MF_MT_SUBTYPE, &guid);
|
|
if (!gst_mf_result (hr))
|
|
continue;
|
|
|
|
/* shouldn't happen */
|
|
if (!IsEqualGUID (guid, MFAudioFormat_MP3))
|
|
continue;
|
|
|
|
hr = type->GetUINT32 (MF_MT_AUDIO_NUM_CHANNELS, &channels);
|
|
if (!gst_mf_result (hr))
|
|
continue;
|
|
|
|
if (channels != 1 && channels != 2) {
|
|
GST_WARNING_OBJECT (transform, "Unknown channels %d", channels);
|
|
continue;
|
|
}
|
|
|
|
hr = type->GetUINT32 (MF_MT_AUDIO_SAMPLES_PER_SECOND, &rate);
|
|
if (!gst_mf_result (hr))
|
|
continue;
|
|
|
|
hr = type->GetUINT32 (MF_MT_AUDIO_AVG_BYTES_PER_SECOND, &bitrate);
|
|
if (!gst_mf_result (hr))
|
|
continue;
|
|
|
|
if (channels == 1)
|
|
mono_rate_list.insert (rate);
|
|
else if (channels == 2)
|
|
stereo_rate_list.insert (rate);
|
|
else
|
|
g_assert_not_reached ();
|
|
|
|
/* convert bytes to bit */
|
|
bitrate_list.insert (bitrate * 8);
|
|
|
|
config_found = TRUE;
|
|
}
|
|
|
|
if (!config_found) {
|
|
GST_WARNING_OBJECT (transform, "Couldn't find available configuration");
|
|
goto done;
|
|
}
|
|
|
|
/* MFT might support more rate and channels combination than documented
|
|
* https://docs.microsoft.com/en-us/windows/win32/medfound/mp3-audio-encoder
|
|
*
|
|
* Configure caps per channels if supported rate values are different
|
|
*/
|
|
if (!mono_rate_list.empty () && !stereo_rate_list.empty () &&
|
|
mono_rate_list == stereo_rate_list) {
|
|
gst_mf_mp3_enc_create_template_caps (mono_rate_list,
|
|
0, &sink_caps, &src_caps);
|
|
} else {
|
|
if (!mono_rate_list.empty ()) {
|
|
gst_mf_mp3_enc_create_template_caps (mono_rate_list,
|
|
1, &sink_caps, &src_caps);
|
|
}
|
|
|
|
if (!stereo_rate_list.empty ()) {
|
|
gst_mf_mp3_enc_create_template_caps (stereo_rate_list,
|
|
2, &sink_caps, &src_caps);
|
|
}
|
|
}
|
|
|
|
if (!sink_caps || !src_caps) {
|
|
GST_WARNING_OBJECT (transform, "Failed to configure template caps");
|
|
gst_clear_caps (&sink_caps);
|
|
gst_clear_caps (&src_caps);
|
|
goto done;
|
|
}
|
|
|
|
GST_MINI_OBJECT_FLAG_SET (sink_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
|
|
GST_MINI_OBJECT_FLAG_SET (src_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
|
|
|
|
gst_mf_mp3_enc_register (plugin, rank, device_name, enum_flags, device_index,
|
|
sink_caps, src_caps, bitrate_list);
|
|
|
|
done:
|
|
if (output_list)
|
|
g_list_free_full (output_list, (GDestroyNotify) gst_mf_media_type_release);
|
|
g_free (device_name);
|
|
}
|
|
|
|
void
|
|
gst_mf_mp3_enc_plugin_init (GstPlugin * plugin, guint rank)
|
|
{
|
|
GstMFTransformEnumParams enum_params = { 0, };
|
|
MFT_REGISTER_TYPE_INFO output_type;
|
|
GstMFTransform *transform;
|
|
gint i;
|
|
gboolean do_next;
|
|
|
|
GST_DEBUG_CATEGORY_INIT (gst_mf_mp3_enc_debug, "mfmp3enc", 0, "mfmp3enc");
|
|
|
|
output_type.guidMajorType = MFMediaType_Audio;
|
|
output_type.guidSubtype = MFAudioFormat_MP3;
|
|
|
|
enum_params.category = MFT_CATEGORY_AUDIO_ENCODER;
|
|
enum_params.enum_flags = (MFT_ENUM_FLAG_SYNCMFT |
|
|
MFT_ENUM_FLAG_SORTANDFILTER | MFT_ENUM_FLAG_SORTANDFILTER_APPROVED_ONLY);
|
|
enum_params.output_typeinfo = &output_type;
|
|
|
|
i = 0;
|
|
do {
|
|
enum_params.device_index = i++;
|
|
transform = gst_mf_transform_new (&enum_params);
|
|
do_next = TRUE;
|
|
|
|
if (!transform) {
|
|
do_next = FALSE;
|
|
} else {
|
|
gst_mf_mp3_enc_plugin_init_internal (plugin, rank, transform,
|
|
enum_params.device_index, enum_params.enum_flags);
|
|
gst_clear_object (&transform);
|
|
}
|
|
} while (do_next);
|
|
}
|