1 /* GStreamer Wavpack encoder plugin 2 * Copyright (c) 2006 Sebastian Dröge <slomo@circular-chaos.org> 3 * 4 * gstwavpackenc.h: Wavpack audio encoder 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public 17 * License along with this library; if not, write to the 18 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22 #ifndef __GST_WAVPACK_ENC_H__ 23 #define __GST_WAVPACK_ENC_H__ 24 25 #include <gst/gst.h> 26 #include <gst/audio/gstaudioencoder.h> 27 28 #include <wavpack/wavpack.h> 29 30 G_BEGIN_DECLS 31 #define GST_TYPE_WAVPACK_ENC \ 32 (gst_wavpack_enc_get_type()) 33 #define GST_WAVPACK_ENC(obj) \ 34 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WAVPACK_ENC,GstWavpackEnc)) 35 #define GST_WAVPACK_ENC_CLASS(klass) \ 36 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WAVPACK_ENC,GstWavpackEnc)) 37 #define GST_IS_WAVPACK_ENC(obj) \ 38 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WAVPACK_ENC)) 39 #define GST_IS_WAVPACK_ENC_CLASS(klass) \ 40 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WAVPACK_ENC)) 41 typedef struct _GstWavpackEnc GstWavpackEnc; 42 typedef struct _GstWavpackEncClass GstWavpackEncClass; 43 44 typedef struct 45 { 46 gboolean correction; 47 GstWavpackEnc *wavpack_enc; 48 gboolean passthrough; 49 } GstWavpackEncWriteID; 50 51 52 struct _GstWavpackEnc 53 { 54 GstAudioEncoder element; 55 56 /*< private > */ 57 GstPad *wvcsrcpad; 58 59 GstFlowReturn srcpad_last_return; 60 GstFlowReturn wvcsrcpad_last_return; 61 62 WavpackConfig *wp_config; 63 WavpackContext *wp_context; 64 65 gint samplerate; 66 gint channels; 67 gint channel_mask; 68 gint8 channel_mapping[8]; 69 gboolean need_channel_remap; 70 gint depth; 71 72 GstWavpackEncWriteID wv_id; 73 GstWavpackEncWriteID wvc_id; 74 75 guint mode; 76 guint bitrate; 77 gdouble bps; 78 guint correction_mode; 79 gboolean md5; 80 GChecksum *md5_context; 81 guint extra_processing; 82 guint joint_stereo_mode; 83 84 void *first_block; 85 int32_t first_block_size; 86 87 GstBuffer *pending_buffer; 88 gint32 pending_offset; 89 GstEvent *pending_segment; 90 91 GstClockTime timestamp_offset; 92 GstClockTime next_ts; 93 }; 94 95 struct _GstWavpackEncClass 96 { 97 GstAudioEncoderClass parent; 98 }; 99 100 GType gst_wavpack_enc_get_type (void); 101 102 gboolean gst_wavpack_enc_plugin_init (GstPlugin * plugin); 103 104 G_END_DECLS 105 #endif /* __GST_WAVPACK_ENC_H__ */ 106