158 lines
5.1 KiB
C
158 lines
5.1 KiB
C
/* GStreamer H.263 Parser
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* Copyright (C) <2010> Arun Raghavan <arun.raghavan@collabora.co.uk>
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* Copyright (C) <2010> Edward Hervey <edward.hervey@collabora.co.uk>
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* Copyright (C) <2010> Collabora Multimedia
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* Copyright (C) <2010> Nokia Corporation
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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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#ifndef __GST_H263_PARAMS_H__
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#define __GST_H263_PARAMS_H__
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#include <gst/gst.h>
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#include <gst/base/gstadapter.h>
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G_BEGIN_DECLS
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typedef enum
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{
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PARSING = 0,
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GOT_HEADER,
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PASSTHROUGH
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} H263ParseState;
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/* H263 Optional Features */
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typedef enum
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{
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/* Optional Unrestricted Motion Vector (UMV) mode (see Annex D) */
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H263_OPTION_UMV_MODE = 1 << 0,
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/* Optional Syntax-based Arithmetic Coding (SAC) mode (see Annex E) */
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H263_OPTION_SAC_MODE = 1 << 1,
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/* Optional Advanced Prediction mode (AP) (see Annex F) */
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H263_OPTION_AP_MODE = 1 << 2,
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/* Optional PB-frames mode (see Annex G) */
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H263_OPTION_PB_MODE = 1 << 3,
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/* Optional Advanced INTRA Coding (AIC) mode (see Annex I) */
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H263_OPTION_AIC_MODE = 1 << 4,
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/* Optional Deblocking Filter (DF) mode (see Annex J) */
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H263_OPTION_DF_MODE = 1 << 5,
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/* Optional Slice Structured (SS) mode (see Annex K) */
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H263_OPTION_SS_MODE = 1 << 6,
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/* Optional Reference Picture Selection (RPS) mode (see Annex N) */
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H263_OPTION_RPS_MODE = 1 << 7,
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/* Optional Independent Segment Decoding (ISD) mode (see Annex R) */
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H263_OPTION_ISD_MODE = 1 << 8,
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/* Optional Alternative INTER VLC (AIV) mode (see Annex S) */
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H263_OPTION_AIV_MODE = 1 << 9,
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/* Optional Modified Quantization (MQ) mode (see Annex T) */
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H263_OPTION_MQ_MODE = 1 << 10,
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/* Optional Reference Picture Resampling (RPR) mode (see Annex P) */
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H263_OPTION_RPR_MODE = 1 << 11,
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/* Optional Reduced-Resolution Update (RRU) mode (see Annex Q) */
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H263_OPTION_RRU_MODE = 1 << 12,
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/* Optional Enhanced Reference Picture Selection (ERPS) mode (see Annex U) */
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H263_OPTION_ERPS_MODE = 1 << 13,
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/* Optional Data Partitioned Slices (DPS) mode (see Annex V) */
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H263_OPTION_DPS_MODE = 1 << 14
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} H263OptionalFeatures;
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/* H263 Picture Types */
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typedef enum
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{
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PICTURE_I = 0, /* I-picture (INTRA) Baseline */
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PICTURE_P, /* P-picture (INTER) Baseline */
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PICTURE_IMPROVED_PB, /* Improved PB-frame (Annex M) */
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PICTURE_B, /* B-picture (Annex O) */
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PICTURE_EI, /* EI-picture (Annex O) */
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PICTURE_EP, /* EP-picture (Annex O) */
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PICTURE_RESERVED1,
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PICTURE_RESERVED2,
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PICTURE_PB /* PB-frame (See Annex G) */
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} H263PictureType;
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/* H263 Picture Format */
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typedef enum
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{
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PICTURE_FMT_FORBIDDEN_0 = 0,
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PICTURE_FMT_SUB_QCIF,
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PICTURE_FMT_QCIF,
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PICTURE_FMT_CIF,
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PICTURE_FMT_4CIF,
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PICTURE_FMT_16CIF,
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PICTURE_FMT_RESERVED1,
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PICTURE_FMT_EXTENDEDPTYPE
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} H263PictureFormat;
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typedef enum
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{
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UUI_ABSENT = 0,
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UUI_IS_1,
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UUI_IS_01,
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} H263UUI;
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typedef struct _H263Params H263Params;
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struct _H263Params
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{
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guint32 temporal_ref;
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H263OptionalFeatures features;
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gboolean splitscreen;
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gboolean documentcamera;
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gboolean fullpicturefreezerelease;
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gboolean custompcfpresent;
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H263UUI uui;
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guint8 sss;
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H263PictureFormat format;
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H263PictureType type;
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guint32 width;
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guint32 height;
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guint8 parnum, pardenom;
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gint32 pcfnum, pcfdenom;
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};
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gboolean gst_h263_parse_is_delta_unit (const H263Params * params);
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GstFlowReturn gst_h263_parse_get_params (H263Params * params_p,
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GstBuffer * buffer,
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gboolean fast,
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H263ParseState * state);
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void gst_h263_parse_get_framerate (const H263Params * params,
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gint * num,
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gint * denom);
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void gst_h263_parse_get_par (const H263Params * params,
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gint * num,
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gint * denom);
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gint gst_h263_parse_get_profile (const H263Params * params);
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gint gst_h263_parse_get_level (const H263Params * params,
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gint profile,
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guint bitrate,
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gint fps_num,
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gint fps_denom);
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G_END_DECLS
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#endif
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