gsttheoraenc.h 3.2 KB
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/* GStreamer
 * Copyright (C) 2004 Wim Taymans <wim@fluendo.com>
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 * Copyright (c) 2012 Collabora Ltd.
 *	Author : Edward Hervey <edward@collabora.com>
 *      Author : Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>
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 *
 * 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., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#ifndef __GST_THEORAENC_H__
#define __GST_THEORAENC_H__

#include <gst/gst.h>
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#include <gst/base/gstadapter.h>
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#include <gst/video/gstvideoencoder.h>
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#include <theora/theoraenc.h>
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G_BEGIN_DECLS

#define GST_TYPE_THEORA_ENC \
  (gst_theora_enc_get_type())
#define GST_THEORA_ENC(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_THEORA_ENC,GstTheoraEnc))
#define GST_THEORA_ENC_CLASS(klass) \
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  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_THEORA_ENC,GstTheoraEncClass))
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#define GST_IS_THEORA_ENC(obj) \
  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_THEORA_ENC))
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#define GST_IS_THEORA_ENC_CLASS(klass) \
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  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_THEORA_ENC))

typedef struct _GstTheoraEnc GstTheoraEnc;
typedef struct _GstTheoraEncClass GstTheoraEncClass;

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/**
 * GstTheoraEncMultipassMode:
 * @MULTIPASS_MODE_SINGLE_PASS: Single pass encoding
 * @MULTIPASS_MODE_FIRST_PASS: First pass of two pass encoding
 * @MULTIPASS_MODE_SECOND_PASS: Second pass of two pass encoding
 *
 */
typedef enum
{
  MULTIPASS_MODE_SINGLE_PASS,
  MULTIPASS_MODE_FIRST_PASS,
  MULTIPASS_MODE_SECOND_PASS
} GstTheoraEncMultipassMode;

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/**
 * GstTheoraEnc:
 *
 * Opaque data structure.
 */
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struct _GstTheoraEnc
{
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  GstVideoEncoder element;
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  ogg_stream_state to;

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  th_enc_ctx *encoder;
  th_info info;
  th_comment comment;
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  gboolean initialised;
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  gint video_bitrate;           /* bitrate target for Theora video */
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  gboolean bitrate_changed;
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  gint video_quality;           /* Theora quality selector 0 = low, 63 = high */
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  gboolean quality_changed;
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  gboolean keyframe_auto;
  gint keyframe_freq;
  gint keyframe_force;

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  GstVideoCodecState *input_state;

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  gint width, height;
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  gint fps_n, fps_d;
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  guint packetno;
  guint64 bytes_out;
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  guint64 granulepos_offset;
  guint64 timestamp_offset;
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  guint64 pfn_offset;
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  gint speed_level;
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  gboolean vp3_compatible;
  gboolean drop_frames;
  gboolean cap_overflow;
  gboolean cap_underflow;
  int rate_buffer;
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  GstTheoraEncMultipassMode multipass_mode;
  GIOChannel *multipass_cache_fd;
  GstAdapter *multipass_cache_adapter;
  gchar *multipass_cache_file;
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};

struct _GstTheoraEncClass
{
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  GstVideoEncoderClass parent_class;
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};

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GType gst_theora_enc_get_type (void);
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gboolean gst_theora_enc_register (GstPlugin * plugin);
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G_END_DECLS

#endif /* __GST_THEORAENC_H__ */