1 /* GStreamer 2 * Copyright (C) 2004 Wim Taymans <wim@fluendo.com> 3 * Copyright (c) 2012 Collabora Ltd. 4 * Author : Edward Hervey <edward@collabora.com> 5 * Author : Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk> 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public 18 * License along with this library; if not, write to the 19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 */ 22 23 #ifndef __GST_THEORAENC_H__ 24 #define __GST_THEORAENC_H__ 25 26 #include <gst/gst.h> 27 #include <gst/base/gstadapter.h> 28 #include <gst/video/gstvideoencoder.h> 29 #include <theora/theoraenc.h> 30 31 G_BEGIN_DECLS 32 33 #define GST_TYPE_THEORA_ENC \ 34 (gst_theora_enc_get_type()) 35 #define GST_THEORA_ENC(obj) \ 36 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_THEORA_ENC,GstTheoraEnc)) 37 #define GST_THEORA_ENC_CLASS(klass) \ 38 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_THEORA_ENC,GstTheoraEncClass)) 39 #define GST_IS_THEORA_ENC(obj) \ 40 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_THEORA_ENC)) 41 #define GST_IS_THEORA_ENC_CLASS(klass) \ 42 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_THEORA_ENC)) 43 44 typedef struct _GstTheoraEnc GstTheoraEnc; 45 typedef struct _GstTheoraEncClass GstTheoraEncClass; 46 47 /** 48 * GstTheoraEncMultipassMode: 49 * @MULTIPASS_MODE_SINGLE_PASS: Single pass encoding 50 * @MULTIPASS_MODE_FIRST_PASS: First pass of two pass encoding 51 * @MULTIPASS_MODE_SECOND_PASS: Second pass of two pass encoding 52 * 53 */ 54 typedef enum 55 { 56 MULTIPASS_MODE_SINGLE_PASS, 57 MULTIPASS_MODE_FIRST_PASS, 58 MULTIPASS_MODE_SECOND_PASS 59 } GstTheoraEncMultipassMode; 60 61 /** 62 * GstTheoraEnc: 63 * 64 * Opaque data structure. 65 */ 66 struct _GstTheoraEnc 67 { 68 GstVideoEncoder element; 69 70 ogg_stream_state to; 71 72 th_enc_ctx *encoder; 73 th_info info; 74 th_comment comment; 75 gboolean initialised; 76 77 gint video_bitrate; /* bitrate target for Theora video */ 78 gboolean bitrate_changed; 79 gint video_quality; /* Theora quality selector 0 = low, 63 = high */ 80 gboolean quality_changed; 81 gboolean keyframe_auto; 82 gint keyframe_freq; 83 gint keyframe_force; 84 85 GstVideoCodecState *input_state; 86 87 gint width, height; 88 gint fps_n, fps_d; 89 90 guint packetno; 91 guint64 bytes_out; 92 guint64 granulepos_offset; 93 guint64 timestamp_offset; 94 guint64 pfn_offset; 95 96 gint speed_level; 97 gboolean vp3_compatible; 98 gboolean drop_frames; 99 gboolean cap_overflow; 100 gboolean cap_underflow; 101 int rate_buffer; 102 103 GstTheoraEncMultipassMode multipass_mode; 104 GIOChannel *multipass_cache_fd; 105 GstAdapter *multipass_cache_adapter; 106 gchar *multipass_cache_file; 107 }; 108 109 struct _GstTheoraEncClass 110 { 111 GstVideoEncoderClass parent_class; 112 }; 113 114 GType gst_theora_enc_get_type (void); 115 116 GST_ELEMENT_REGISTER_DECLARE (theoraenc); 117 118 G_END_DECLS 119 120 #endif /* __GST_THEORAENC_H__ */ 121 122