mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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fdkaac: Add FDK AAC based decoder element
Missing is support for error concealment, etc.
This commit is contained in:
Sebastian Dröge
parent
ff83eceb13
commit
cb20432f9f
4 changed files with 504 additions and 3 deletions
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@ -1,6 +1,6 @@
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plugin_LTLIBRARIES = libgstfdkaac.la
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libgstfdkaac_la_SOURCES = plugin.c gstfdkaacenc.c
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libgstfdkaac_la_SOURCES = plugin.c gstfdkaacenc.c gstfdkaacdec.c
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libgstfdkaac_la_CFLAGS = -DGST_USE_UNSTABLE_API \
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$(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) \
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$(GST_CFLAGS) $(FDK_AAC_CFLAGS)
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@ -10,4 +10,4 @@ libgstfdkaac_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) \
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libgstfdkaac_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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libgstfdkaac_la_LIBTOOLFLAGS = $(GST_PLUGIN_LIBTOOLFLAGS)
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noinst_HEADERS = gstfdkaacenc.h
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noinst_HEADERS = gstfdkaacenc.h gstfdkaacdec.h
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438
ext/fdkaac/gstfdkaacdec.c
Normal file
438
ext/fdkaac/gstfdkaacdec.c
Normal file
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@ -0,0 +1,438 @@
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/*
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* Copyright (C) 2016 Sebastian Dröge <sebastian@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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstfdkaacdec.h"
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#include <gst/pbutils/pbutils.h>
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#include <string.h>
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/* TODO:
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* - LOAS / LATM support
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* - Error concealment
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*/
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static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/mpeg, "
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"mpegversion = (int) 4, "
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"stream-format = (string) { adts, adif, raw }")
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);
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static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-raw, "
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"format = (string) " GST_AUDIO_NE (S16) ", "
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"layout = (string) interleaved, "
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"rate = (int) [8000, 96000], " "channels = (int) [1, 8]")
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);
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GST_DEBUG_CATEGORY_STATIC (gst_fdkaacdec_debug);
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#define GST_CAT_DEFAULT gst_fdkaacdec_debug
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static gboolean gst_fdkaacdec_start (GstAudioDecoder * dec);
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static gboolean gst_fdkaacdec_stop (GstAudioDecoder * dec);
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static gboolean gst_fdkaacdec_set_format (GstAudioDecoder * dec,
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GstCaps * caps);
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static GstFlowReturn gst_fdkaacdec_handle_frame (GstAudioDecoder * dec,
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GstBuffer * in_buf);
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static void gst_fdkaacdec_flush (GstAudioDecoder * dec, gboolean hard);
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G_DEFINE_TYPE (GstFdkAacDec, gst_fdkaacdec, GST_TYPE_AUDIO_DECODER);
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static gboolean
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gst_fdkaacdec_start (GstAudioDecoder * dec)
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{
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GstFdkAacDec *self = GST_FDKAACDEC (dec);
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GST_DEBUG_OBJECT (self, "start");
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return TRUE;
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}
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static gboolean
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gst_fdkaacdec_stop (GstAudioDecoder * dec)
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{
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GstFdkAacDec *self = GST_FDKAACDEC (dec);
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GST_DEBUG_OBJECT (self, "stop");
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g_free (self->decode_buffer);
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self->decode_buffer = NULL;
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if (self->dec)
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aacDecoder_Close (self->dec);
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self->dec = NULL;
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return TRUE;
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}
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static gboolean
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gst_fdkaacdec_set_format (GstAudioDecoder * dec, GstCaps * caps)
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{
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GstFdkAacDec *self = GST_FDKAACDEC (dec);
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TRANSPORT_TYPE transport_format;
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GstStructure *s;
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const gchar *stream_format;
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AAC_DECODER_ERROR err;
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if (self->dec) {
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/* drain */
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gst_fdkaacdec_handle_frame (dec, NULL);
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aacDecoder_Close (self->dec);
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self->dec = NULL;
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}
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s = gst_caps_get_structure (caps, 0);
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stream_format = gst_structure_get_string (s, "stream-format");
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if (strcmp (stream_format, "raw") == 0) {
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transport_format = TT_MP4_RAW;
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} else if (strcmp (stream_format, "adif") == 0) {
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transport_format = TT_MP4_ADIF;
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} else if (strcmp (stream_format, "adts") == 0) {
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transport_format = TT_MP4_ADTS;
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} else {
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g_assert_not_reached ();
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}
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self->dec = aacDecoder_Open (transport_format, 1);
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if (!self->dec) {
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GST_ERROR_OBJECT (self, "Failed to open decoder");
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return FALSE;
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}
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if (transport_format == TT_MP4_RAW) {
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GstBuffer *codec_data = NULL;
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GstMapInfo map;
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guint8 *data;
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guint size;
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gst_structure_get (s, "codec_data", GST_TYPE_BUFFER, &codec_data, NULL);
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if (!codec_data) {
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GST_ERROR_OBJECT (self, "Raw AAC without codec_data not supported");
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return FALSE;
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}
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gst_buffer_map (codec_data, &map, GST_MAP_READ);
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data = map.data;
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size = map.size;
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if ((err = aacDecoder_ConfigRaw (self->dec, &data, &size)) != AAC_DEC_OK) {
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gst_buffer_unmap (codec_data, &map);
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GST_ERROR_OBJECT (self, "Invalid codec_data: %d", err);
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return FALSE;
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}
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gst_buffer_unmap (codec_data, &map);
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}
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if ((err =
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aacDecoder_SetParam (self->dec, AAC_PCM_OUTPUT_CHANNEL_MAPPING,
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0)) != AAC_DEC_OK) {
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GST_ERROR_OBJECT (self, "Failed to set output channel mapping: %d", err);
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return FALSE;
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}
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if ((err =
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aacDecoder_SetParam (self->dec, AAC_PCM_OUTPUT_INTERLEAVED,
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0)) != AAC_DEC_OK) {
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GST_ERROR_OBJECT (self, "Failed to set output channel mapping: %d", err);
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return FALSE;
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}
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/* 8 channels * 2 bytes per sample * 2048 samples */
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if (!self->decode_buffer) {
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self->decode_buffer_size = 8 * 2 * 2048;
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self->decode_buffer = g_malloc (self->decode_buffer_size);
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}
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return TRUE;
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}
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static GstFlowReturn
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gst_fdkaacdec_handle_frame (GstAudioDecoder * dec, GstBuffer * inbuf)
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{
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GstFdkAacDec *self = GST_FDKAACDEC (dec);
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GstFlowReturn ret = GST_FLOW_OK;
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GstBuffer *outbuf;
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GstMapInfo imap;
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AAC_DECODER_ERROR err;
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guint size, valid;
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CStreamInfo *stream_info;
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GstAudioInfo info;
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guint flags = 0, i;
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GstAudioChannelPosition pos[64], gst_pos[64];
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gboolean need_reorder;
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if (inbuf) {
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gst_buffer_map (inbuf, &imap, GST_MAP_READ);
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valid = size = imap.size;
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if ((err =
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aacDecoder_Fill (self->dec, (guint8 **) & imap.data, &size,
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&valid)) != AAC_DEC_OK) {
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GST_AUDIO_DECODER_ERROR (self, 1, STREAM, DECODE, (NULL),
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("filling error: %d", err), ret);
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gst_buffer_unmap (inbuf, &imap);
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goto out;
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}
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gst_buffer_unmap (inbuf, &imap);
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if (GST_BUFFER_IS_DISCONT (inbuf))
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flags |= AACDEC_INTR;
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} else {
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flags |= AACDEC_FLUSH;
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}
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if ((err =
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aacDecoder_DecodeFrame (self->dec, (gint16 *) self->decode_buffer,
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self->decode_buffer_size, flags)) != AAC_DEC_OK) {
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GST_AUDIO_DECODER_ERROR (self, 1, STREAM, DECODE, (NULL),
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("decoding error: %d", err), ret);
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goto out;
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}
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stream_info = aacDecoder_GetStreamInfo (self->dec);
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if (!stream_info) {
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GST_AUDIO_DECODER_ERROR (self, 1, STREAM, DECODE, (NULL),
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("failed to get stream info"), ret);
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goto out;
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}
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/* FIXME: Don't recalculate this on every buffer */
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if (stream_info->numChannels == 1) {
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pos[0] = GST_AUDIO_CHANNEL_POSITION_MONO;
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} else {
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gint n_front = 0, n_side = 0, n_back = 0, n_lfe = 0;
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/* FIXME: Can this be simplified somehow? */
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for (i = 0; i < stream_info->numChannels; i++) {
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if (stream_info->pChannelType[i] == ACT_FRONT) {
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n_front++;
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} else if (stream_info->pChannelType[i] == ACT_SIDE) {
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n_side++;
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} else if (stream_info->pChannelType[i] == ACT_BACK) {
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n_back++;
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} else if (stream_info->pChannelType[i] == ACT_LFE) {
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n_lfe++;
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} else {
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GST_ERROR_OBJECT (self, "Channel type %d not supported",
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stream_info->pChannelType[i]);
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ret = GST_FLOW_NOT_NEGOTIATED;
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goto out;
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}
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}
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for (i = 0; i < stream_info->numChannels; i++) {
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if (stream_info->pChannelType[i] == ACT_FRONT) {
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if (stream_info->pChannelIndices[i] == 0) {
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if (n_front & 1)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER;
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else if (n_front > 2)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER;
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else
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pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
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} else if (stream_info->pChannelIndices[i] == 1) {
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if ((n_front & 1) && n_front > 3)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER;
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else if (n_front & 1)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
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else if (n_front > 2)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER;
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else
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pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
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} else if (stream_info->pChannelIndices[i] == 2) {
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if ((n_front & 1) && n_front > 3)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER;
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else if (n_front & 1)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
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else if (n_front > 2)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
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else
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g_assert_not_reached ();
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} else if (stream_info->pChannelIndices[i] == 3) {
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if ((n_front & 1) && n_front > 3)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
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else if (n_front & 1)
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g_assert_not_reached ();
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else if (n_front > 2)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
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else
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g_assert_not_reached ();
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} else if (stream_info->pChannelIndices[i] == 4) {
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if ((n_front & 1) && n_front > 2)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
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else if (n_front & 1)
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g_assert_not_reached ();
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else if (n_front > 2)
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g_assert_not_reached ();
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else
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g_assert_not_reached ();
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} else {
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GST_ERROR_OBJECT (self, "Front channel index %d not supported",
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stream_info->pChannelIndices[i]);
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ret = GST_FLOW_NOT_NEGOTIATED;
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goto out;
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}
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} else if (stream_info->pChannelType[i] == ACT_SIDE) {
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if (n_side & 1) {
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GST_ERROR_OBJECT (self, "Odd number of side channels not supported");
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ret = GST_FLOW_NOT_NEGOTIATED;
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goto out;
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} else if (stream_info->pChannelIndices[i] == 0) {
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pos[i] = GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT;
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} else if (stream_info->pChannelIndices[i] == 1) {
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pos[i] = GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT;
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} else {
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GST_ERROR_OBJECT (self, "Side channel index %d not supported",
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stream_info->pChannelIndices[i]);
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ret = GST_FLOW_NOT_NEGOTIATED;
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goto out;
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}
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} else if (stream_info->pChannelType[i] == ACT_BACK) {
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if (stream_info->pChannelIndices[i] == 0) {
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if (n_back & 1)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_REAR_CENTER;
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else
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pos[i] = GST_AUDIO_CHANNEL_POSITION_REAR_LEFT;
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} else if (stream_info->pChannelIndices[i] == 1) {
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if (n_back & 1)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_REAR_LEFT;
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else
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pos[i] = GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT;
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} else if (stream_info->pChannelIndices[i] == 2) {
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if (n_back & 1)
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pos[i] = GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT;
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else
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g_assert_not_reached ();
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} else {
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GST_ERROR_OBJECT (self, "Side channel index %d not supported",
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stream_info->pChannelIndices[i]);
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ret = GST_FLOW_NOT_NEGOTIATED;
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goto out;
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}
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} else if (stream_info->pChannelType[i] == ACT_LFE) {
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if (stream_info->pChannelIndices[i] == 0) {
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pos[i] = GST_AUDIO_CHANNEL_POSITION_LFE1;
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} else {
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GST_ERROR_OBJECT (self, "LFE channel index %d not supported",
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stream_info->pChannelIndices[i]);
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ret = GST_FLOW_NOT_NEGOTIATED;
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goto out;
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}
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} else {
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GST_ERROR_OBJECT (self, "Channel type %d not supported",
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stream_info->pChannelType[i]);
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ret = GST_FLOW_NOT_NEGOTIATED;
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goto out;
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}
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}
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}
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memcpy (gst_pos, pos,
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sizeof (GstAudioChannelPosition) * stream_info->numChannels);
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if (!gst_audio_channel_positions_to_valid_order (gst_pos,
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stream_info->numChannels)) {
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ret = GST_FLOW_NOT_NEGOTIATED;
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goto out;
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}
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need_reorder =
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memcmp (pos, gst_pos,
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sizeof (GstAudioChannelPosition) * stream_info->numChannels) != 0;
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gst_audio_info_set_format (&info, GST_AUDIO_FORMAT_S16,
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stream_info->sampleRate, stream_info->numChannels, gst_pos);
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if (!gst_audio_decoder_set_output_format (dec, &info)) {
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GST_ERROR_OBJECT (self, "Failed to set output format");
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ret = GST_FLOW_NOT_NEGOTIATED;
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goto out;
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}
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outbuf =
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gst_audio_decoder_allocate_output_buffer (dec,
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stream_info->frameSize * GST_AUDIO_INFO_BPF (&info));
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gst_buffer_fill (outbuf, 0, self->decode_buffer,
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gst_buffer_get_size (outbuf));
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if (need_reorder) {
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gst_audio_buffer_reorder_channels (outbuf, GST_AUDIO_INFO_FORMAT (&info),
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GST_AUDIO_INFO_CHANNELS (&info), pos, gst_pos);
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}
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ret = gst_audio_decoder_finish_frame (dec, outbuf, 1);
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out:
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return ret;
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}
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static void
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gst_fdkaacdec_flush (GstAudioDecoder * dec, gboolean hard)
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{
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GstFdkAacDec *self = GST_FDKAACDEC (dec);
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if (self->dec) {
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AAC_DECODER_ERROR err;
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if ((err =
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aacDecoder_DecodeFrame (self->dec, (gint16 *) self->decode_buffer,
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self->decode_buffer_size, AACDEC_FLUSH)) != AAC_DEC_OK) {
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GST_ERROR_OBJECT (self, "flushing error: %d", err);
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}
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}
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}
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static void
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gst_fdkaacdec_init (GstFdkAacDec * self)
|
||||
{
|
||||
self->dec = NULL;
|
||||
|
||||
gst_audio_decoder_set_drainable (GST_AUDIO_DECODER (self), TRUE);
|
||||
gst_audio_decoder_set_needs_format (GST_AUDIO_DECODER (self), TRUE);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_fdkaacdec_class_init (GstFdkAacDecClass * klass)
|
||||
{
|
||||
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
|
||||
GstAudioDecoderClass *base_class = GST_AUDIO_DECODER_CLASS (klass);
|
||||
|
||||
base_class->start = GST_DEBUG_FUNCPTR (gst_fdkaacdec_start);
|
||||
base_class->stop = GST_DEBUG_FUNCPTR (gst_fdkaacdec_stop);
|
||||
base_class->set_format = GST_DEBUG_FUNCPTR (gst_fdkaacdec_set_format);
|
||||
base_class->handle_frame = GST_DEBUG_FUNCPTR (gst_fdkaacdec_handle_frame);
|
||||
base_class->flush = GST_DEBUG_FUNCPTR (gst_fdkaacdec_flush);
|
||||
|
||||
gst_element_class_add_static_pad_template (element_class, &sink_template);
|
||||
gst_element_class_add_static_pad_template (element_class, &src_template);
|
||||
|
||||
gst_element_class_set_static_metadata (element_class, "FDK AAC audio decoder",
|
||||
"Codec/Decoder/Audio", "FDK AAC audio decoder",
|
||||
"Sebastian Dröge <sebastian@centricular.com>");
|
||||
|
||||
GST_DEBUG_CATEGORY_INIT (gst_fdkaacdec_debug, "fdkaacdec", 0,
|
||||
"fdkaac decoder");
|
||||
}
|
||||
60
ext/fdkaac/gstfdkaacdec.h
Normal file
60
ext/fdkaac/gstfdkaacdec.h
Normal file
|
|
@ -0,0 +1,60 @@
|
|||
/*
|
||||
* Copyright (C) 2016 Sebastian Dröge <sebastian@centricular.com>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
||||
* Boston, MA 02110-1301, USA.
|
||||
*/
|
||||
|
||||
#ifndef __GST_FDKAACDEC_H__
|
||||
#define __GST_FDKAACDEC_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/audio/gstaudiodecoder.h>
|
||||
|
||||
#include <fdk-aac/aacdecoder_lib.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_TYPE_FDKAACDEC \
|
||||
(gst_fdkaacdec_get_type())
|
||||
#define GST_FDKAACDEC(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_FDKAACDEC, GstFdkAacDec))
|
||||
#define GST_FDKAACDEC_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_FDKAACDEC, GstFdkAacDecClass))
|
||||
#define GST_IS_FDKAACDEC(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_FDKAACDEC))
|
||||
#define GST_IS_FDKAACDEC_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_FDKAACDEC))
|
||||
|
||||
typedef struct _GstFdkAacDec GstFdkAacDec;
|
||||
typedef struct _GstFdkAacDecClass GstFdkAacDecClass;
|
||||
|
||||
struct _GstFdkAacDec {
|
||||
GstAudioDecoder element;
|
||||
|
||||
HANDLE_AACDECODER dec;
|
||||
guint8 *decode_buffer;
|
||||
gint decode_buffer_size;
|
||||
};
|
||||
|
||||
struct _GstFdkAacDecClass {
|
||||
GstAudioDecoderClass parent_class;
|
||||
};
|
||||
|
||||
GType gst_fdkaacdec_get_type (void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_FDKAACDEC_H__ */
|
||||
|
|
@ -23,12 +23,15 @@
|
|||
|
||||
#include <gst/gst.h>
|
||||
#include "gstfdkaacenc.h"
|
||||
#include "gstfdkaacdec.h"
|
||||
|
||||
static gboolean
|
||||
plugin_init (GstPlugin * plugin)
|
||||
{
|
||||
return gst_element_register (plugin, "fdkaacenc", GST_RANK_PRIMARY,
|
||||
GST_TYPE_FDKAACENC);
|
||||
GST_TYPE_FDKAACENC)
|
||||
&& gst_element_register (plugin, "fdkaacdec", GST_RANK_MARGINAL,
|
||||
GST_TYPE_FDKAACDEC);
|
||||
}
|
||||
|
||||
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
||||
|
|
|
|||
Loading…
Reference in a new issue