mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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The channel position is an enum but the conversion code assumed it's a mask. Convert accordingly.
1144 lines
32 KiB
C
1144 lines
32 KiB
C
/* -*- mOde: C; tab-width: 2; indent-tabs-mode: t; c-basic-offset: 2 -*- */
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/* GStreamer .wav encoder
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* Copyright (C) <2002> Iain Holmes <iain@prettypeople.org>
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* Copyright (C) <2006> 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 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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/**
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* SECTION:element-wavenc
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* @title: wavenc
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*
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* Format an audio stream into the wav format.
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*
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* ## Example launch line
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* |[
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* gst-launch-1.0 cdparanoiasrc mode=continuous ! queue ! audioconvert ! wavenc ! filesink location=cd.wav
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* ]| Rip a whole audio CD into a single wav file, with the track table written into a CUE sheet inside the file
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* |[
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* gst-launch-1.0 cdparanoiasrc track=5 ! queue ! audioconvert ! wavenc ! filesink location=track5.wav
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* ]| Rip track 5 of an audio CD into a single wav file containing unencoded raw audio samples.
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*
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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 "gstwavenc.h"
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#include <gst/audio/audio.h>
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#include <gst/riff/riff-media.h>
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#include <gst/base/gstbytewriter.h>
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GST_DEBUG_CATEGORY_STATIC (wavenc_debug);
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#define GST_CAT_DEFAULT wavenc_debug
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typedef struct
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{
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/* Offset Size Description Value
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* 0x00 4 ID unique identification value
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* 0x04 4 Position play order position
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* 0x08 4 Data Chunk ID RIFF ID of corresponding data chunk
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* 0x0c 4 Chunk Start Byte Offset of Data Chunk *
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* 0x10 4 Block Start Byte Offset to sample of First Channel
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* 0x14 4 Sample Offset Byte Offset to sample byte of First Channel
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*/
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guint32 id;
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guint32 position;
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guint8 data_chunk_id[4];
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guint32 chunk_start;
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guint32 block_start;
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guint32 sample_offset;
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} GstWavEncCue;
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typedef struct
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{
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/* Offset Size Description Value
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* 0x00 4 Chunk ID "labl" (0x6C61626C) or "note" (0x6E6F7465)
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* 0x04 4 Chunk Data Size depends on contained text
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* 0x08 4 Cue Point ID 0 - 0xFFFFFFFF
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* 0x0c Text
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*/
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guint8 chunk_id[4];
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guint32 chunk_data_size;
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guint32 cue_point_id;
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gchar *text;
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} GstWavEncLabl, GstWavEncNote;
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/* FIXME: mono doesn't produce correct files it seems, at least mplayer xruns */
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#define SINK_CAPS \
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"audio/x-raw, " \
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"rate = (int) [ 1, MAX ], " \
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"channels = (int) [ 1, 65535 ], " \
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"format = (string) { S32LE, S24LE, S16LE, U8, F32LE, F64LE }, " \
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"layout = (string) interleaved" \
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"; " \
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"audio/x-alaw, " \
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"rate = (int) [ 8000, 192000 ], " \
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"channels = (int) [ 1, 2 ]; " \
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"audio/x-mulaw, " \
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"rate = (int) [ 8000, 192000 ], " \
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"channels = (int) [ 1, 2 ]"
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#define SRC_CAPS \
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"audio/x-wav; " \
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"audio/x-rf64"
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static GstStaticPadTemplate sink_factory = 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 (SINK_CAPS)
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);
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static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (SRC_CAPS)
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);
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#define gst_wavenc_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (GstWavEnc, gst_wavenc, GST_TYPE_ELEMENT,
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G_IMPLEMENT_INTERFACE (GST_TYPE_TAG_SETTER, NULL)
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G_IMPLEMENT_INTERFACE (GST_TYPE_TOC_SETTER, NULL)
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);
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static GstFlowReturn gst_wavenc_chain (GstPad * pad, GstObject * parent,
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GstBuffer * buf);
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static gboolean gst_wavenc_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static GstStateChangeReturn gst_wavenc_change_state (GstElement * element,
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GstStateChange transition);
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static gboolean gst_wavenc_sink_setcaps (GstPad * pad, GstCaps * caps);
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static void
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gst_wavenc_class_init (GstWavEncClass * klass)
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{
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GstElementClass *element_class;
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element_class = (GstElementClass *) klass;
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element_class->change_state = GST_DEBUG_FUNCPTR (gst_wavenc_change_state);
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gst_element_class_set_static_metadata (element_class, "WAV audio muxer",
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"Codec/Muxer/Audio",
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"Encode raw audio into WAV", "Iain Holmes <iain@prettypeople.org>");
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gst_element_class_add_static_pad_template (element_class, &src_factory);
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gst_element_class_add_static_pad_template (element_class, &sink_factory);
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GST_DEBUG_CATEGORY_INIT (wavenc_debug, "wavenc", 0, "WAV encoder element");
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}
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static void
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gst_wavenc_init (GstWavEnc * wavenc)
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{
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wavenc->sinkpad = gst_pad_new_from_static_template (&sink_factory, "sink");
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gst_pad_set_chain_function (wavenc->sinkpad,
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GST_DEBUG_FUNCPTR (gst_wavenc_chain));
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gst_pad_set_event_function (wavenc->sinkpad,
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GST_DEBUG_FUNCPTR (gst_wavenc_event));
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gst_pad_use_fixed_caps (wavenc->sinkpad);
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gst_element_add_pad (GST_ELEMENT (wavenc), wavenc->sinkpad);
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wavenc->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
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gst_pad_use_fixed_caps (wavenc->srcpad);
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gst_element_add_pad (GST_ELEMENT (wavenc), wavenc->srcpad);
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}
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#define RIFF_CHUNK_LEN 12
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#define FMT_WAV_CHUNK_LEN 24
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#define FMT_EXT_CHUNK_LEN 48
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#define FACT_CHUNK_LEN 12
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#define DATA_HEADER_LEN 8
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#define DS64_CHUNK_LEN 36
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static gboolean
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use_format_ext (GstWavEnc * wavenc)
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{
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return wavenc->channels > 2;
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}
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static gboolean
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use_fact_chunk (GstWavEnc * wavenc)
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{
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return use_format_ext (wavenc) && !wavenc->use_rf64;
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}
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static int
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get_header_len (GstWavEnc * wavenc)
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{
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int len = RIFF_CHUNK_LEN;
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if (use_format_ext (wavenc))
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len += FMT_EXT_CHUNK_LEN;
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else
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len += FMT_WAV_CHUNK_LEN;
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if (use_fact_chunk (wavenc))
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len += FACT_CHUNK_LEN;
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if (wavenc->use_rf64)
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len += DS64_CHUNK_LEN;
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return len + DATA_HEADER_LEN;
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}
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static guint64
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gstmask_to_wavmask (guint64 gstmask, GstAudioChannelPosition * pos)
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{
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const GstAudioChannelPosition valid_pos =
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT |
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT |
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER |
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GST_AUDIO_CHANNEL_POSITION_LFE1 |
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GST_AUDIO_CHANNEL_POSITION_REAR_LEFT |
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GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT |
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER |
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER |
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GST_AUDIO_CHANNEL_POSITION_REAR_CENTER |
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GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT |
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GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT |
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GST_AUDIO_CHANNEL_POSITION_TOP_CENTER |
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GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_LEFT |
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GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_CENTER |
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GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_RIGHT |
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GST_AUDIO_CHANNEL_POSITION_TOP_REAR_LEFT |
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GST_AUDIO_CHANNEL_POSITION_TOP_REAR_CENTER |
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GST_AUDIO_CHANNEL_POSITION_TOP_REAR_RIGHT;
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const GstAudioChannelPosition wav_pos[] = {
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
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GST_AUDIO_CHANNEL_POSITION_LFE1,
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GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,
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GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER,
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GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER,
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GST_AUDIO_CHANNEL_POSITION_REAR_CENTER,
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GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,
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GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_TOP_CENTER,
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GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_LEFT,
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GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_CENTER,
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GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_RIGHT,
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GST_AUDIO_CHANNEL_POSITION_TOP_REAR_LEFT,
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GST_AUDIO_CHANNEL_POSITION_TOP_REAR_CENTER,
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GST_AUDIO_CHANNEL_POSITION_TOP_REAR_RIGHT,
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};
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int k;
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int chan = 0;
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guint64 ret = 0;
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guint64 mask = 1;
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if (gstmask == 0 || ((gstmask & ~valid_pos) != 0))
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return 0;
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for (k = 0; k < G_N_ELEMENTS (wav_pos); ++k) {
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if (gstmask & (G_GUINT64_CONSTANT (1) << wav_pos[k])) {
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ret |= mask;
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pos[chan++] = wav_pos[k];
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}
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mask <<= 1;
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}
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return ret;
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}
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static guint8 *
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write_fmt_chunk (GstWavEnc * wavenc, guint8 * header)
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{
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guint16 wBlockAlign;
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wBlockAlign = (wavenc->width / 8) * wavenc->channels;
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memcpy (header, "fmt ", 4);
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/* wChannels */
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GST_WRITE_UINT16_LE (header + 10, wavenc->channels);
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/* dwSamplesPerSec */
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GST_WRITE_UINT32_LE (header + 12, wavenc->rate);
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/* dwAvgBytesPerSec */
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GST_WRITE_UINT32_LE (header + 16, wBlockAlign * wavenc->rate);
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/* wBlockAlign */
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GST_WRITE_UINT16_LE (header + 20, wBlockAlign);
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/* wBitsPerSample */
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GST_WRITE_UINT16_LE (header + 22, wavenc->width);
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if (use_format_ext (wavenc)) {
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GST_DEBUG_OBJECT (wavenc, "Using WAVE_FORMAT_EXTENSIBLE");
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GST_WRITE_UINT32_LE (header + 4, FMT_EXT_CHUNK_LEN - 8);
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/* wFormatTag */
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GST_WRITE_UINT16_LE (header + 8, 0xFFFE);
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/* cbSize */
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GST_WRITE_UINT16_LE (header + 24, 22);
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/* wValidBitsPerSample */
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GST_WRITE_UINT16_LE (header + 26, wavenc->width);
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/* dwChannelMask */
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GST_WRITE_UINT32_LE (header + 28, (guint32) wavenc->channel_mask);
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GST_WRITE_UINT16_LE (header + 32, wavenc->format);
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memcpy (header + 34,
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"\x00\x00\x00\x00\x10\x00\x80\x00\x00\xAA\x00\x38\x9B\x71", 14);
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header += FMT_EXT_CHUNK_LEN;
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} else {
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GST_WRITE_UINT32_LE (header + 4, FMT_WAV_CHUNK_LEN - 8);
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/* wFormatTag */
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GST_WRITE_UINT16_LE (header + 8, wavenc->format);
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header += FMT_WAV_CHUNK_LEN;
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}
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return header;
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}
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static guint64
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get_num_frames (GstWavEnc * wavenc)
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{
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if (wavenc->channels == 0 || wavenc->width == 0)
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return 0;
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return wavenc->audio_length / (wavenc->width / 8) / wavenc->channels;
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}
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static guint8 *
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write_fact_chunk (GstWavEnc * wavenc, guint8 * header)
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{
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memcpy (header, "fact", 4);
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GST_WRITE_UINT32_LE (header + 4, FACT_CHUNK_LEN - 8);
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/* compressed files are only supported up to 2 channels,
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* that means we never write a fact chunk for them */
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if (wavenc->use_rf64)
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GST_WRITE_UINT32_LE (header + 8, 0xFFFFFFFF);
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else
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GST_WRITE_UINT32_LE (header + 8, (guint32) get_num_frames (wavenc));
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return header + FACT_CHUNK_LEN;
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}
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static guint8 *
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write_ds64_chunk (GstWavEnc * wavenc, guint64 riffLen, guint8 * header)
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{
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guint64 numFrames = get_num_frames (wavenc);
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GST_DEBUG_OBJECT (wavenc, "riffLen=%" G_GUINT64_FORMAT
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", audio length=%" G_GUINT64_FORMAT ", numFrames=%" G_GUINT64_FORMAT,
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riffLen, wavenc->audio_length, numFrames);
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memcpy (header, "ds64", 4);
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GST_WRITE_UINT32_LE (header + 4, DS64_CHUNK_LEN - 8);
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/* riffSize */
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GST_WRITE_UINT32_LE (header + 8, (guint32) (riffLen & 0xFFFFFFFF));
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GST_WRITE_UINT32_LE (header + 12, (guint32) (riffLen >> 32));
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/* dataSize */
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GST_WRITE_UINT32_LE (header + 16,
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(guint32) (wavenc->audio_length & 0xFFFFFFFF));
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GST_WRITE_UINT32_LE (header + 20, (guint32) (wavenc->audio_length >> 32));
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/* sampleCount */
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GST_WRITE_UINT32_LE (header + 24, (guint32) (numFrames & 0xFFFFFFFF));
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GST_WRITE_UINT32_LE (header + 28, (guint32) (numFrames >> 32));
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/* tableLength always zero for now */
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GST_WRITE_UINT32_LE (header + 32, 0);
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return header + DS64_CHUNK_LEN;
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}
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static GstBuffer *
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gst_wavenc_create_header_buf (GstWavEnc * wavenc)
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{
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GstBuffer *buf;
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GstMapInfo map;
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guint8 *header;
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guint64 riffLen;
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GST_DEBUG_OBJECT (wavenc, "Header size: %d", get_header_len (wavenc));
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buf = gst_buffer_new_and_alloc (get_header_len (wavenc));
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gst_buffer_map (buf, &map, GST_MAP_WRITE);
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header = map.data;
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memset (header, 0, get_header_len (wavenc));
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riffLen = wavenc->meta_length + wavenc->audio_length
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+ get_header_len (wavenc) - 8;
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/* RIFF chunk */
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if (wavenc->use_rf64) {
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GST_DEBUG_OBJECT (wavenc, "Using RF64");
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memcpy (header, "RF64", 4);
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GST_WRITE_UINT32_LE (header + 4, 0xFFFFFFFF);
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} else {
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memcpy (header, "RIFF", 4);
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GST_WRITE_UINT32_LE (header + 4, (guint32) riffLen);
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}
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memcpy (header + 8, "WAVE", 4);
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header += RIFF_CHUNK_LEN;
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if (wavenc->use_rf64)
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header = write_ds64_chunk (wavenc, riffLen, header);
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header = write_fmt_chunk (wavenc, header);
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if (use_fact_chunk (wavenc))
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header = write_fact_chunk (wavenc, header);
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/* data chunk */
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memcpy (header, "data ", 4);
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if (wavenc->use_rf64)
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GST_WRITE_UINT32_LE (header + 4, 0xFFFFFFFF);
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else
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GST_WRITE_UINT32_LE (header + 4, (guint32) wavenc->audio_length);
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gst_buffer_unmap (buf, &map);
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return buf;
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}
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static GstFlowReturn
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gst_wavenc_push_header (GstWavEnc * wavenc)
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{
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GstFlowReturn ret;
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GstBuffer *outbuf;
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GstSegment segment;
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/* seek to beginning of file */
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gst_segment_init (&segment, GST_FORMAT_BYTES);
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if (!gst_pad_push_event (wavenc->srcpad, gst_event_new_segment (&segment))) {
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GST_WARNING_OBJECT (wavenc, "Seek to the beginning failed");
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return GST_FLOW_ERROR;
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}
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GST_DEBUG_OBJECT (wavenc, "writing header, meta_size=%u, audio_size=%"
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G_GUINT64_FORMAT, wavenc->meta_length, wavenc->audio_length);
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outbuf = gst_wavenc_create_header_buf (wavenc);
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GST_BUFFER_OFFSET (outbuf) = 0;
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ret = gst_pad_push (wavenc->srcpad, outbuf);
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if (ret != GST_FLOW_OK) {
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GST_WARNING_OBJECT (wavenc, "push header failed: flow = %s",
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gst_flow_get_name (ret));
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}
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return ret;
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}
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static gboolean
|
|
gst_wavenc_sink_setcaps (GstPad * pad, GstCaps * caps)
|
|
{
|
|
GstWavEnc *wavenc;
|
|
GstStructure *structure;
|
|
const gchar *name;
|
|
gint chans, rate;
|
|
GstCaps *ccaps;
|
|
|
|
wavenc = GST_WAVENC (gst_pad_get_parent (pad));
|
|
|
|
ccaps = gst_pad_get_current_caps (pad);
|
|
if (wavenc->sent_header && ccaps && !gst_caps_can_intersect (caps, ccaps)) {
|
|
gst_caps_unref (ccaps);
|
|
GST_WARNING_OBJECT (wavenc, "cannot change format in middle of stream");
|
|
goto fail;
|
|
}
|
|
if (ccaps)
|
|
gst_caps_unref (ccaps);
|
|
|
|
GST_DEBUG_OBJECT (wavenc, "got caps: %" GST_PTR_FORMAT, caps);
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
name = gst_structure_get_name (structure);
|
|
|
|
if (!gst_structure_get_int (structure, "channels", &chans) ||
|
|
!gst_structure_get_int (structure, "rate", &rate)) {
|
|
GST_WARNING_OBJECT (wavenc, "caps incomplete");
|
|
goto fail;
|
|
}
|
|
|
|
wavenc->channels = chans;
|
|
wavenc->rate = rate;
|
|
wavenc->channel_mask = 0;
|
|
|
|
if (strcmp (name, "audio/x-raw") == 0) {
|
|
GstAudioInfo info;
|
|
guint64 gstmask;
|
|
|
|
if (!gst_audio_info_from_caps (&info, caps)) {
|
|
GST_WARNING_OBJECT (wavenc, "Could not retrieve audio info from caps");
|
|
goto fail;
|
|
}
|
|
if (gst_audio_channel_positions_to_mask (info.position, wavenc->channels,
|
|
FALSE, &gstmask)) {
|
|
wavenc->channel_mask = gstmask_to_wavmask (gstmask, wavenc->destPos);
|
|
memcpy (wavenc->srcPos, info.position, sizeof (info.position));
|
|
GST_DEBUG_OBJECT (wavenc, "Channel mask input: 0x%" G_GINT64_MODIFIER "x"
|
|
" output: 0x%" G_GINT64_MODIFIER "x", gstmask, wavenc->channel_mask);
|
|
}
|
|
wavenc->audio_format = GST_AUDIO_INFO_FORMAT (&info);
|
|
|
|
if (GST_AUDIO_INFO_IS_INTEGER (&info))
|
|
wavenc->format = GST_RIFF_WAVE_FORMAT_PCM;
|
|
else if (GST_AUDIO_INFO_IS_FLOAT (&info))
|
|
wavenc->format = GST_RIFF_WAVE_FORMAT_IEEE_FLOAT;
|
|
else
|
|
goto fail;
|
|
|
|
wavenc->width = GST_AUDIO_INFO_WIDTH (&info);
|
|
} else if (strcmp (name, "audio/x-alaw") == 0) {
|
|
wavenc->format = GST_RIFF_WAVE_FORMAT_ALAW;
|
|
wavenc->width = 8;
|
|
} else if (strcmp (name, "audio/x-mulaw") == 0) {
|
|
wavenc->format = GST_RIFF_WAVE_FORMAT_MULAW;
|
|
wavenc->width = 8;
|
|
} else {
|
|
GST_WARNING_OBJECT (wavenc, "Unsupported format %s", name);
|
|
goto fail;
|
|
}
|
|
|
|
GST_LOG_OBJECT (wavenc,
|
|
"accepted caps: format=0x%04x chans=%u width=%u rate=%u",
|
|
wavenc->format, wavenc->channels, wavenc->width, wavenc->rate);
|
|
|
|
gst_object_unref (wavenc);
|
|
return TRUE;
|
|
|
|
fail:
|
|
gst_object_unref (wavenc);
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gst_wavparse_tags_foreach (const GstTagList * tags, const gchar * tag,
|
|
gpointer data)
|
|
{
|
|
const struct
|
|
{
|
|
guint32 fcc;
|
|
const gchar *tag;
|
|
} rifftags[] = {
|
|
{
|
|
GST_RIFF_INFO_IARL, GST_TAG_LOCATION}, {
|
|
GST_RIFF_INFO_IART, GST_TAG_ARTIST}, {
|
|
GST_RIFF_INFO_ICMT, GST_TAG_COMMENT}, {
|
|
GST_RIFF_INFO_ICOP, GST_TAG_COPYRIGHT}, {
|
|
GST_RIFF_INFO_ICRD, GST_TAG_DATE}, {
|
|
GST_RIFF_INFO_IGNR, GST_TAG_GENRE}, {
|
|
GST_RIFF_INFO_IKEY, GST_TAG_KEYWORDS}, {
|
|
GST_RIFF_INFO_INAM, GST_TAG_TITLE}, {
|
|
GST_RIFF_INFO_IPRD, GST_TAG_ALBUM}, {
|
|
GST_RIFF_INFO_ISBJ, GST_TAG_ALBUM_ARTIST}, {
|
|
GST_RIFF_INFO_ISFT, GST_TAG_ENCODER}, {
|
|
GST_RIFF_INFO_ISRC, GST_TAG_ISRC}, {
|
|
0, NULL}
|
|
};
|
|
gint n;
|
|
gchar *str = NULL;
|
|
GstByteWriter *bw = data;
|
|
for (n = 0; rifftags[n].fcc != 0; n++) {
|
|
if (!strcmp (rifftags[n].tag, tag)) {
|
|
if (rifftags[n].fcc == GST_RIFF_INFO_ICRD) {
|
|
GDate *date;
|
|
/* special case for the date tag */
|
|
if (gst_tag_list_get_date (tags, tag, &date)) {
|
|
str =
|
|
g_strdup_printf ("%04d:%02d:%02d", g_date_get_year (date),
|
|
g_date_get_month (date), g_date_get_day (date));
|
|
g_date_free (date);
|
|
}
|
|
} else {
|
|
gst_tag_list_get_string (tags, tag, &str);
|
|
}
|
|
if (str) {
|
|
gst_byte_writer_put_uint32_le (bw, rifftags[n].fcc);
|
|
gst_byte_writer_put_uint32_le (bw, GST_ROUND_UP_2 (strlen (str)));
|
|
gst_byte_writer_put_string (bw, str);
|
|
g_free (str);
|
|
str = NULL;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_wavenc_write_tags (GstWavEnc * wavenc)
|
|
{
|
|
const GstTagList *user_tags;
|
|
GstTagList *tags;
|
|
guint size;
|
|
GstBuffer *buf;
|
|
GstByteWriter bw;
|
|
|
|
g_return_val_if_fail (wavenc != NULL, GST_FLOW_OK);
|
|
|
|
user_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (wavenc));
|
|
if ((!wavenc->tags) && (!user_tags)) {
|
|
GST_DEBUG_OBJECT (wavenc, "have no tags");
|
|
return GST_FLOW_OK;
|
|
}
|
|
tags =
|
|
gst_tag_list_merge (user_tags, wavenc->tags,
|
|
gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (wavenc)));
|
|
|
|
GST_DEBUG_OBJECT (wavenc, "writing tags");
|
|
|
|
gst_byte_writer_init_with_size (&bw, 1024, FALSE);
|
|
|
|
/* add LIST INFO chunk */
|
|
gst_byte_writer_put_data (&bw, (const guint8 *) "LIST", 4);
|
|
gst_byte_writer_put_uint32_le (&bw, 0);
|
|
gst_byte_writer_put_data (&bw, (const guint8 *) "INFO", 4);
|
|
|
|
/* add tags */
|
|
gst_tag_list_foreach (tags, gst_wavparse_tags_foreach, &bw);
|
|
|
|
/* sets real size of LIST INFO chunk */
|
|
size = gst_byte_writer_get_pos (&bw);
|
|
gst_byte_writer_set_pos (&bw, 4);
|
|
gst_byte_writer_put_uint32_le (&bw, size - 8);
|
|
|
|
gst_tag_list_unref (tags);
|
|
|
|
buf = gst_byte_writer_reset_and_get_buffer (&bw);
|
|
wavenc->meta_length += gst_buffer_get_size (buf);
|
|
return gst_pad_push (wavenc->srcpad, buf);
|
|
}
|
|
|
|
static gboolean
|
|
gst_wavenc_is_cue_id_unique (guint32 id, GList * list)
|
|
{
|
|
GstWavEncCue *cue;
|
|
|
|
while (list) {
|
|
cue = list->data;
|
|
if (cue->id == id)
|
|
return FALSE;
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_wavenc_parse_cue (GstWavEnc * wavenc, guint32 id, GstTocEntry * entry)
|
|
{
|
|
gint64 start;
|
|
GstWavEncCue *cue;
|
|
|
|
g_return_val_if_fail (entry != NULL, FALSE);
|
|
|
|
gst_toc_entry_get_start_stop_times (entry, &start, NULL);
|
|
|
|
cue = g_new (GstWavEncCue, 1);
|
|
cue->id = id;
|
|
cue->position = gst_util_uint64_scale_round (start, wavenc->rate, GST_SECOND);
|
|
memcpy (cue->data_chunk_id, "data", 4);
|
|
cue->chunk_start = 0;
|
|
cue->block_start = 0;
|
|
cue->sample_offset = cue->position;
|
|
wavenc->cues = g_list_append (wavenc->cues, cue);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_wavenc_parse_labl (GstWavEnc * wavenc, guint32 id, GstTocEntry * entry)
|
|
{
|
|
gchar *tag;
|
|
GstTagList *tags;
|
|
GstWavEncLabl *labl;
|
|
|
|
g_return_val_if_fail (entry != NULL, FALSE);
|
|
|
|
tags = gst_toc_entry_get_tags (entry);
|
|
if (!tags) {
|
|
GST_INFO_OBJECT (wavenc, "no tags for entry: %d", id);
|
|
return FALSE;
|
|
}
|
|
if (!gst_tag_list_get_string (tags, GST_TAG_TITLE, &tag)) {
|
|
GST_INFO_OBJECT (wavenc, "no title tag for entry: %d", id);
|
|
return FALSE;
|
|
}
|
|
|
|
labl = g_new (GstWavEncLabl, 1);
|
|
memcpy (labl->chunk_id, "labl", 4);
|
|
labl->chunk_data_size = 4 + strlen (tag) + 1;
|
|
labl->cue_point_id = id;
|
|
labl->text = tag;
|
|
|
|
GST_DEBUG_OBJECT (wavenc, "got labl: '%s'", tag);
|
|
|
|
wavenc->labls = g_list_append (wavenc->labls, labl);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_wavenc_parse_note (GstWavEnc * wavenc, guint32 id, GstTocEntry * entry)
|
|
{
|
|
gchar *tag;
|
|
GstTagList *tags;
|
|
GstWavEncNote *note;
|
|
|
|
g_return_val_if_fail (entry != NULL, FALSE);
|
|
tags = gst_toc_entry_get_tags (entry);
|
|
if (!tags) {
|
|
GST_INFO_OBJECT (wavenc, "no tags for entry: %d", id);
|
|
return FALSE;
|
|
}
|
|
if (!gst_tag_list_get_string (tags, GST_TAG_COMMENT, &tag)) {
|
|
GST_INFO_OBJECT (wavenc, "no comment tag for entry: %d", id);
|
|
return FALSE;
|
|
}
|
|
|
|
note = g_new (GstWavEncNote, 1);
|
|
memcpy (note->chunk_id, "note", 4);
|
|
note->chunk_data_size = 4 + strlen (tag) + 1;
|
|
note->cue_point_id = id;
|
|
note->text = tag;
|
|
|
|
GST_DEBUG_OBJECT (wavenc, "got note: '%s'", tag);
|
|
|
|
wavenc->notes = g_list_append (wavenc->notes, note);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_wavenc_write_cues (guint8 ** data, GList * list)
|
|
{
|
|
GstWavEncCue *cue;
|
|
|
|
while (list) {
|
|
cue = list->data;
|
|
GST_WRITE_UINT32_LE (*data, cue->id);
|
|
GST_WRITE_UINT32_LE (*data + 4, cue->position);
|
|
memcpy (*data + 8, (gchar *) cue->data_chunk_id, 4);
|
|
GST_WRITE_UINT32_LE (*data + 12, cue->chunk_start);
|
|
GST_WRITE_UINT32_LE (*data + 16, cue->block_start);
|
|
GST_WRITE_UINT32_LE (*data + 20, cue->sample_offset);
|
|
*data += 24;
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_wavenc_write_labls (guint8 ** data, GList * list)
|
|
{
|
|
GstWavEncLabl *labl;
|
|
|
|
while (list) {
|
|
labl = list->data;
|
|
memcpy (*data, (gchar *) labl->chunk_id, 4);
|
|
GST_WRITE_UINT32_LE (*data + 4, labl->chunk_data_size);
|
|
GST_WRITE_UINT32_LE (*data + 8, labl->cue_point_id);
|
|
memcpy (*data + 12, (gchar *) labl->text, strlen (labl->text));
|
|
*data += 8 + GST_ROUND_UP_2 (labl->chunk_data_size);
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_wavenc_write_notes (guint8 ** data, GList * list)
|
|
{
|
|
GstWavEncNote *note;
|
|
|
|
while (list) {
|
|
note = list->data;
|
|
memcpy (*data, (gchar *) note->chunk_id, 4);
|
|
GST_WRITE_UINT32_LE (*data + 4, note->chunk_data_size);
|
|
GST_WRITE_UINT32_LE (*data + 8, note->cue_point_id);
|
|
memcpy (*data + 12, (gchar *) note->text, strlen (note->text));
|
|
*data += 8 + GST_ROUND_UP_2 (note->chunk_data_size);
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_wavenc_write_toc (GstWavEnc * wavenc)
|
|
{
|
|
GList *list;
|
|
GstToc *toc;
|
|
GstTocEntry *entry, *subentry;
|
|
GstBuffer *buf;
|
|
GstMapInfo map;
|
|
guint8 *data;
|
|
guint32 ncues, size, cues_size, labls_size, notes_size;
|
|
|
|
if (!wavenc->toc) {
|
|
GST_DEBUG_OBJECT (wavenc, "have no toc, checking toc_setter");
|
|
wavenc->toc = gst_toc_setter_get_toc (GST_TOC_SETTER (wavenc));
|
|
}
|
|
if (!wavenc->toc) {
|
|
GST_WARNING_OBJECT (wavenc, "have no toc");
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
toc = gst_toc_ref (wavenc->toc);
|
|
size = 0;
|
|
cues_size = 0;
|
|
labls_size = 0;
|
|
notes_size = 0;
|
|
|
|
/* check if the TOC entries is valid */
|
|
list = gst_toc_get_entries (toc);
|
|
entry = list->data;
|
|
if (gst_toc_entry_is_alternative (entry)) {
|
|
list = gst_toc_entry_get_sub_entries (entry);
|
|
while (list) {
|
|
subentry = list->data;
|
|
if (!gst_toc_entry_is_sequence (subentry))
|
|
return FALSE;
|
|
list = g_list_next (list);
|
|
}
|
|
list = gst_toc_entry_get_sub_entries (entry);
|
|
}
|
|
if (gst_toc_entry_is_sequence (entry)) {
|
|
while (list) {
|
|
entry = list->data;
|
|
if (!gst_toc_entry_is_sequence (entry))
|
|
return FALSE;
|
|
list = g_list_next (list);
|
|
}
|
|
list = gst_toc_get_entries (toc);
|
|
}
|
|
|
|
ncues = g_list_length (list);
|
|
GST_DEBUG_OBJECT (wavenc, "number of cue entries: %d", ncues);
|
|
|
|
while (list) {
|
|
guint32 id = 0;
|
|
gint64 id64;
|
|
const gchar *uid;
|
|
|
|
entry = list->data;
|
|
uid = gst_toc_entry_get_uid (entry);
|
|
id64 = g_ascii_strtoll (uid, NULL, 0);
|
|
/* check if id unique compatible with guint32 else generate random */
|
|
if (id64 >= 0 && gst_wavenc_is_cue_id_unique (id64, wavenc->cues)) {
|
|
id = (guint32) id64;
|
|
} else {
|
|
do {
|
|
id = g_random_int ();
|
|
} while (!gst_wavenc_is_cue_id_unique (id, wavenc->cues));
|
|
}
|
|
gst_wavenc_parse_cue (wavenc, id, entry);
|
|
gst_wavenc_parse_labl (wavenc, id, entry);
|
|
gst_wavenc_parse_note (wavenc, id, entry);
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
/* count cues size */
|
|
if (wavenc->cues) {
|
|
cues_size = 24 * g_list_length (wavenc->cues);
|
|
size += 12 + cues_size;
|
|
} else {
|
|
GST_WARNING_OBJECT (wavenc, "cue's not found");
|
|
return FALSE;
|
|
}
|
|
/* count labls size */
|
|
if (wavenc->labls) {
|
|
list = wavenc->labls;
|
|
while (list) {
|
|
GstWavEncLabl *labl;
|
|
labl = list->data;
|
|
labls_size += 8 + GST_ROUND_UP_2 (labl->chunk_data_size);
|
|
list = g_list_next (list);
|
|
}
|
|
size += labls_size;
|
|
}
|
|
/* count notes size */
|
|
if (wavenc->notes) {
|
|
list = wavenc->notes;
|
|
while (list) {
|
|
GstWavEncNote *note;
|
|
note = list->data;
|
|
notes_size += 8 + GST_ROUND_UP_2 (note->chunk_data_size);
|
|
list = g_list_next (list);
|
|
}
|
|
size += notes_size;
|
|
}
|
|
if (wavenc->labls || wavenc->notes) {
|
|
size += 12;
|
|
}
|
|
|
|
buf = gst_buffer_new_and_alloc (size);
|
|
gst_buffer_map (buf, &map, GST_MAP_WRITE);
|
|
data = map.data;
|
|
memset (data, 0, size);
|
|
|
|
/* write Cue Chunk */
|
|
if (wavenc->cues) {
|
|
memcpy (data, (gchar *) "cue ", 4);
|
|
GST_WRITE_UINT32_LE (data + 4, 4 + cues_size);
|
|
GST_WRITE_UINT32_LE (data + 8, ncues);
|
|
data += 12;
|
|
gst_wavenc_write_cues (&data, wavenc->cues);
|
|
|
|
/* write Associated Data List Chunk */
|
|
if (wavenc->labls || wavenc->notes) {
|
|
memcpy (data, (gchar *) "LIST", 4);
|
|
GST_WRITE_UINT32_LE (data + 4, 4 + labls_size + notes_size);
|
|
memcpy (data + 8, (gchar *) "adtl", 4);
|
|
data += 12;
|
|
if (wavenc->labls)
|
|
gst_wavenc_write_labls (&data, wavenc->labls);
|
|
if (wavenc->notes)
|
|
gst_wavenc_write_notes (&data, wavenc->notes);
|
|
}
|
|
}
|
|
|
|
/* free resources */
|
|
if (toc)
|
|
gst_toc_unref (toc);
|
|
if (wavenc->cues)
|
|
g_list_free_full (wavenc->cues, g_free);
|
|
if (wavenc->labls)
|
|
g_list_free_full (wavenc->labls, g_free);
|
|
if (wavenc->notes)
|
|
g_list_free_full (wavenc->notes, g_free);
|
|
|
|
gst_buffer_unmap (buf, &map);
|
|
wavenc->meta_length += gst_buffer_get_size (buf);
|
|
|
|
return gst_pad_push (wavenc->srcpad, buf);
|
|
}
|
|
|
|
static gboolean
|
|
gst_wavenc_event (GstPad * pad, GstObject * parent, GstEvent * event)
|
|
{
|
|
gboolean res = TRUE;
|
|
GstWavEnc *wavenc;
|
|
GstTagList *tags;
|
|
GstToc *toc;
|
|
|
|
wavenc = GST_WAVENC (parent);
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_CAPS:
|
|
{
|
|
GstCaps *caps;
|
|
|
|
gst_event_parse_caps (event, &caps);
|
|
gst_wavenc_sink_setcaps (pad, caps);
|
|
|
|
/* have our own src caps */
|
|
gst_event_unref (event);
|
|
break;
|
|
}
|
|
case GST_EVENT_EOS:
|
|
{
|
|
GstFlowReturn flow;
|
|
GST_DEBUG_OBJECT (wavenc, "got EOS");
|
|
|
|
flow = gst_wavenc_write_toc (wavenc);
|
|
if (flow != GST_FLOW_OK) {
|
|
GST_WARNING_OBJECT (wavenc, "error pushing toc: %s",
|
|
gst_flow_get_name (flow));
|
|
}
|
|
flow = gst_wavenc_write_tags (wavenc);
|
|
if (flow != GST_FLOW_OK) {
|
|
GST_WARNING_OBJECT (wavenc, "error pushing tags: %s",
|
|
gst_flow_get_name (flow));
|
|
}
|
|
|
|
/* write header with correct length values */
|
|
gst_wavenc_push_header (wavenc);
|
|
|
|
/* we're done with this file */
|
|
wavenc->finished_properly = TRUE;
|
|
|
|
/* and forward the EOS event */
|
|
res = gst_pad_event_default (pad, parent, event);
|
|
break;
|
|
}
|
|
case GST_EVENT_SEGMENT:
|
|
/* Just drop it, it's probably in TIME format
|
|
* anyway. We'll send our own newsegment event */
|
|
gst_event_unref (event);
|
|
break;
|
|
case GST_EVENT_TOC:
|
|
gst_event_parse_toc (event, &toc, NULL);
|
|
if (toc) {
|
|
if (wavenc->toc != toc) {
|
|
if (wavenc->toc)
|
|
gst_toc_unref (wavenc->toc);
|
|
wavenc->toc = toc;
|
|
} else {
|
|
gst_toc_unref (toc);
|
|
}
|
|
}
|
|
res = gst_pad_event_default (pad, parent, event);
|
|
break;
|
|
case GST_EVENT_TAG:
|
|
gst_event_parse_tag (event, &tags);
|
|
if (tags) {
|
|
if (wavenc->tags != tags) {
|
|
if (wavenc->tags)
|
|
gst_tag_list_unref (wavenc->tags);
|
|
wavenc->tags = gst_tag_list_ref (tags);
|
|
}
|
|
}
|
|
res = gst_pad_event_default (pad, parent, event);
|
|
break;
|
|
default:
|
|
res = gst_pad_event_default (pad, parent, event);
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_wavenc_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
|
|
{
|
|
GstWavEnc *wavenc = GST_WAVENC (parent);
|
|
GstFlowReturn flow = GST_FLOW_OK;
|
|
|
|
if (wavenc->channels <= 0) {
|
|
GST_ERROR_OBJECT (wavenc, "Got data without caps");
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
}
|
|
|
|
if (G_UNLIKELY (!wavenc->sent_header)) {
|
|
GstStructure *s;
|
|
GstCaps *caps = gst_pad_get_allowed_caps (wavenc->srcpad);
|
|
|
|
GST_DEBUG_OBJECT (wavenc, "allowed src caps: %" GST_PTR_FORMAT, caps);
|
|
if (!gst_caps_is_fixed (caps)) {
|
|
caps = gst_caps_truncate (caps);
|
|
}
|
|
s = gst_caps_get_structure (caps, 0);
|
|
wavenc->use_rf64 = gst_structure_has_name (s, "audio/x-rf64");
|
|
|
|
gst_pad_set_caps (wavenc->srcpad, caps);
|
|
gst_caps_unref (caps);
|
|
|
|
/* starting a file, means we have to finish it properly */
|
|
wavenc->finished_properly = FALSE;
|
|
|
|
/* push initial bogus header, it will be updated on EOS */
|
|
flow = gst_wavenc_push_header (wavenc);
|
|
if (flow != GST_FLOW_OK) {
|
|
GST_WARNING_OBJECT (wavenc, "error pushing header: %s",
|
|
gst_flow_get_name (flow));
|
|
return flow;
|
|
}
|
|
GST_DEBUG_OBJECT (wavenc, "wrote dummy header");
|
|
wavenc->audio_length = 0;
|
|
wavenc->sent_header = TRUE;
|
|
}
|
|
|
|
GST_LOG_OBJECT (wavenc,
|
|
"pushing %" G_GSIZE_FORMAT " bytes raw audio, ts=%" GST_TIME_FORMAT,
|
|
gst_buffer_get_size (buf), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
|
|
|
|
buf = gst_buffer_make_writable (buf);
|
|
|
|
GST_BUFFER_OFFSET (buf) = get_header_len (wavenc) + wavenc->audio_length;
|
|
GST_BUFFER_OFFSET_END (buf) = GST_BUFFER_OFFSET_NONE;
|
|
|
|
wavenc->audio_length += gst_buffer_get_size (buf);
|
|
|
|
if (wavenc->channel_mask != 0 &&
|
|
!gst_audio_buffer_reorder_channels (buf, wavenc->audio_format,
|
|
wavenc->channels, wavenc->srcPos, wavenc->destPos)) {
|
|
GST_WARNING_OBJECT (wavenc, "Could not reorder channels");
|
|
}
|
|
|
|
flow = gst_pad_push (wavenc->srcpad, buf);
|
|
|
|
return flow;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_wavenc_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
|
|
GstWavEnc *wavenc = GST_WAVENC (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_NULL_TO_READY:
|
|
wavenc->format = 0;
|
|
wavenc->channels = 0;
|
|
wavenc->width = 0;
|
|
wavenc->rate = 0;
|
|
/* use bogus size initially, we'll write the real
|
|
* header when we get EOS and know the exact length */
|
|
wavenc->audio_length = 0x7FFF0000;
|
|
wavenc->meta_length = 0;
|
|
wavenc->sent_header = FALSE;
|
|
/* its true because we haven't written anything */
|
|
wavenc->finished_properly = TRUE;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
if (ret != GST_STATE_CHANGE_SUCCESS)
|
|
return ret;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
if (!wavenc->finished_properly) {
|
|
GST_ELEMENT_WARNING (wavenc, STREAM, MUX,
|
|
("Wav stream not finished properly"),
|
|
("Wav stream not finished properly, no EOS received "
|
|
"before shutdown"));
|
|
}
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
GST_DEBUG_OBJECT (wavenc, "tags: %p", wavenc->tags);
|
|
if (wavenc->tags) {
|
|
gst_tag_list_unref (wavenc->tags);
|
|
wavenc->tags = NULL;
|
|
}
|
|
GST_DEBUG_OBJECT (wavenc, "toc: %p", wavenc->toc);
|
|
if (wavenc->toc) {
|
|
gst_toc_unref (wavenc->toc);
|
|
wavenc->toc = NULL;
|
|
}
|
|
gst_tag_setter_reset_tags (GST_TAG_SETTER (wavenc));
|
|
gst_toc_setter_reset (GST_TOC_SETTER (wavenc));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
return gst_element_register (plugin, "wavenc", GST_RANK_PRIMARY,
|
|
GST_TYPE_WAVENC);
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
wavenc,
|
|
"Encode raw audio into WAV",
|
|
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|