/*****************************************************************************
* vlc_es.h: Elementary stream formats descriptions
*****************************************************************************
- * Copyright (C) 1999-2001 the VideoLAN team
+ * Copyright (C) 1999-2012 VLC authors and VideoLAN
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifndef VLC_ES_H
#define VLC_ES_H 1
-/* FIXME: i'm not too sure about this include but it fixes compilation of
- * video chromas -- dionoea */
-#include "vlc_common.h"
+#include <vlc_fourcc.h>
/**
* \file
/* Describes the channels configuration of the samples (ie. number of
* channels which are available in the buffer, and positions). */
- uint32_t i_physical_channels;
+ uint16_t i_physical_channels;
/* Describes from which original channels, before downmixing, the
* buffer is derived. */
unsigned i_bitspersample;
unsigned i_blockalign;
uint8_t i_channels; /* must be <=32 */
- uint8_t i_flavor;
};
-#ifdef WORDS_BIGENDIAN
-# define AUDIO_FMT_S16_NE VLC_FOURCC('s','1','6','b')
-# define AUDIO_FMT_U16_NE VLC_FOURCC('u','1','6','b')
-#else
-# define AUDIO_FMT_S16_NE VLC_FOURCC('s','1','6','l')
-# define AUDIO_FMT_U16_NE VLC_FOURCC('u','1','6','l')
-#endif
+/* Values available for audio channels */
+#define AOUT_CHAN_CENTER 0x1
+#define AOUT_CHAN_LEFT 0x2
+#define AOUT_CHAN_RIGHT 0x4
+#define AOUT_CHAN_REARCENTER 0x10
+#define AOUT_CHAN_REARLEFT 0x20
+#define AOUT_CHAN_REARRIGHT 0x40
+#define AOUT_CHAN_MIDDLELEFT 0x100
+#define AOUT_CHAN_MIDDLERIGHT 0x200
+#define AOUT_CHAN_LFE 0x1000
+
+#define AOUT_CHANS_FRONT (AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT)
+#define AOUT_CHANS_MIDDLE (AOUT_CHAN_MIDDLELEFT | AOUT_CHAN_MIDDLERIGHT)
+#define AOUT_CHANS_REAR (AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT)
+#define AOUT_CHANS_CENTER (AOUT_CHAN_CENTER | AOUT_CHAN_REARCENTER)
+
+#define AOUT_CHANS_STEREO AOUT_CHANS_2_0
+#define AOUT_CHANS_2_0 (AOUT_CHANS_FRONT)
+#define AOUT_CHANS_2_1 (AOUT_CHANS_FRONT | AOUT_CHAN_LFE)
+#define AOUT_CHANS_3_0 (AOUT_CHANS_FRONT | AOUT_CHAN_CENTER)
+#define AOUT_CHANS_3_1 (AOUT_CHANS_3_0 | AOUT_CHAN_LFE)
+#define AOUT_CHANS_4_0 (AOUT_CHANS_FRONT | AOUT_CHANS_REAR)
+#define AOUT_CHANS_4_1 (AOUT_CHANS_4_0 | AOUT_CHAN_LFE)
+#define AOUT_CHANS_5_0 (AOUT_CHANS_4_0 | AOUT_CHAN_CENTER)
+#define AOUT_CHANS_5_1 (AOUT_CHANS_5_0 | AOUT_CHAN_LFE)
+#define AOUT_CHANS_6_0 (AOUT_CHANS_4_0 | AOUT_CHANS_MIDDLE)
+#define AOUT_CHANS_7_0 (AOUT_CHANS_6_0 | AOUT_CHAN_CENTER)
+#define AOUT_CHANS_7_1 (AOUT_CHANS_5_1 | AOUT_CHANS_MIDDLE)
+#define AOUT_CHANS_8_1 (AOUT_CHANS_7_1 | AOUT_CHAN_REARCENTER)
+
+#define AOUT_CHANS_4_0_MIDDLE (AOUT_CHANS_FRONT | AOUT_CHANS_MIDDLE)
+#define AOUT_CHANS_4_CENTER_REAR (AOUT_CHANS_FRONT | AOUT_CHANS_CENTER)
+#define AOUT_CHANS_5_0_MIDDLE (AOUT_CHANS_4_0_MIDDLE | AOUT_CHAN_CENTER)
+#define AOUT_CHANS_6_1_MIDDLE (AOUT_CHANS_5_0_MIDDLE | AOUT_CHAN_REARCENTER | AOUT_CHAN_LFE)
+
+/* Values available for original channels only */
+#define AOUT_CHAN_DOLBYSTEREO 0x10000
+#define AOUT_CHAN_DUALMONO 0x20000
+#define AOUT_CHAN_REVERSESTEREO 0x40000
+
+#define AOUT_CHAN_PHYSMASK 0xFFFF
+#define AOUT_CHAN_MAX 9
+
+/**
+ * Picture orientation.
+ */
+typedef enum video_orientation_t
+{
+ ORIENT_TOP_LEFT = 0, /**< Top line represents top, left column left. */
+ ORIENT_TOP_RIGHT, /**< Flipped horizontally */
+ ORIENT_BOTTOM_LEFT, /**< Flipped vertically */
+ ORIENT_BOTTOM_RIGHT, /**< Rotated 180 degrees */
+ ORIENT_LEFT_TOP, /**< Transposed */
+ ORIENT_LEFT_BOTTOM, /**< Rotated 90 degrees clockwise */
+ ORIENT_RIGHT_TOP, /**< Rotated 90 degrees anti-clockwise */
+ ORIENT_RIGHT_BOTTOM, /**< Anti-transposed */
+
+ ORIENT_NORMAL = ORIENT_TOP_LEFT,
+ ORIENT_HFLIPPED = ORIENT_TOP_RIGHT,
+ ORIENT_VFLIPPED = ORIENT_BOTTOM_LEFT,
+ ORIENT_ROTATED_180 = ORIENT_BOTTOM_RIGHT,
+ ORIENT_ROTATED_270 = ORIENT_LEFT_BOTTOM,
+ ORIENT_ROTATED_90 = ORIENT_RIGHT_TOP,
+} video_orientation_t;
+/** Convert EXIF orientation to enum video_orientation_t */
+#define ORIENT_FROM_EXIF(exif) ((0x01324675U >> (4 * ((exif) - 1))) & 7)
+/** Convert enum video_orientation_t to EXIF */
+#define ORIENT_TO_EXIF(orient) ((0x12435867U >> (4 * (orient))) & 15)
+/** If the orientation is natural or mirrored */
+#define ORIENT_IS_MIRROR(orient) parity(orient)
+/** If the orientation swaps dimensions */
+#define ORIENT_IS_SWAP(orient) (((orient) & 4) != 0)
+/** Applies horizontal flip to an orientation */
+#define ORIENT_HFLIP(orient) ((orient) ^ 1)
+/** Applies vertical flip to an orientation */
+#define ORIENT_VFLIP(orient) ((orient) ^ 2)
+/** Applies horizontal flip to an orientation */
+#define ORIENT_ROTATE_180(orient) ((orient) ^ 3)
/**
* video format description
struct video_format_t
{
vlc_fourcc_t i_chroma; /**< picture chroma */
- unsigned int i_aspect; /**< aspect ratio */
unsigned int i_width; /**< picture width */
unsigned int i_height; /**< picture height */
unsigned int i_frame_rate; /**< frame rate numerator */
unsigned int i_frame_rate_base; /**< frame rate denominator */
- int i_rmask, i_gmask, i_bmask; /**< color masks for RGB chroma */
+ uint32_t i_rmask, i_gmask, i_bmask; /**< color masks for RGB chroma */
int i_rrshift, i_lrshift;
int i_rgshift, i_lgshift;
int i_rbshift, i_lbshift;
video_palette_t *p_palette; /**< video palette from demuxer */
+ video_orientation_t orientation; /**< picture orientation */
};
/**
* \param p_dst video_format_t to copy to
* \param p_src video_format_t to copy from
*/
-static inline int video_format_Copy( video_format_t *p_dst, video_format_t *p_src )
+static inline int video_format_Copy( video_format_t *p_dst, const video_format_t *p_src )
{
- memcpy( p_dst, p_src, sizeof( video_format_t ) );
+ memcpy( p_dst, p_src, sizeof( *p_dst ) );
if( p_src->p_palette )
{
p_dst->p_palette = (video_palette_t *) malloc( sizeof( video_palette_t ) );
if( !p_dst->p_palette )
return VLC_ENOMEM;
- memcpy( p_dst->p_palette, p_src->p_palette, sizeof( video_palette_t ) );
+ memcpy( p_dst->p_palette, p_src->p_palette, sizeof( *p_dst->p_palette ) );
}
return VLC_SUCCESS;
-};
+}
/**
* Cleanup and free palette of this video_format_t
p_src->p_palette = NULL;
}
+/**
+ * It will fill up a video_format_t using the given arguments.
+ * Note that the video_format_t must already be initialized.
+ */
+VLC_API void video_format_Setup( video_format_t *, vlc_fourcc_t i_chroma, int i_width, int i_height, int i_sar_num, int i_sar_den );
+
+/**
+ * It will copy the crop properties from a video_format_t to another.
+ */
+VLC_API void video_format_CopyCrop( video_format_t *, const video_format_t * );
+
+/**
+ * It will compute the crop/ar properties when scaling.
+ */
+VLC_API void video_format_ScaleCropAr( video_format_t *, const video_format_t * );
+
+/**
+ * This function will check if the first video format is similar
+ * to the second one.
+ */
+VLC_API bool video_format_IsSimilar( const video_format_t *, const video_format_t * );
+
+/**
+ * It prints details about the given video_format_t
+ */
+VLC_API void video_format_Print( vlc_object_t *, const char *, const video_format_t * );
+
/**
* subtitles format description
*/
{
int i_id;
} dvb;
+ struct
+ {
+ int i_magazine;
+ int i_page;
+ } teletext;
};
/**
*/
struct es_format_t
{
- int i_cat; /**< ES category @see es_format_category_e */
- vlc_fourcc_t i_codec; /**< FOURCC value as used in vlc */
+ int i_cat; /**< ES category @see es_format_category_e */
+ vlc_fourcc_t i_codec; /**< FOURCC value as used in vlc */
+ vlc_fourcc_t i_original_fourcc; /**< original FOURCC from the container */
int i_id; /**< es identifier, where means
-1: let the core mark the right id
subs_format_t subs; /**< description of subtitle format */
unsigned int i_bitrate; /**< bitrate of this ES */
+ int i_profile; /**< codec specific information (like real audio flavor, mpeg audio layer, h264 profile ...) */
+ int i_level; /**< codec specific information: indicates maximum restrictions on the stream (resolution, bitrate, codec features ...) */
- bool b_packetized; /**< wether the data is packetized (ie. not truncated) */
+ bool b_packetized; /**< whether the data is packetized (ie. not truncated) */
int i_extra; /**< length in bytes of extra data pointer */
void *p_extra; /**< extra data needed by some decoders or muxers */
/**
* This function will fill all RGB shift from RGB masks.
*/
-VLC_EXPORT( void, video_format_FixRgb, ( video_format_t * ) );
+VLC_API void video_format_FixRgb( video_format_t * );
/**
- * This funtion will initialize a es_format_t structure.
+ * This function will initialize a es_format_t structure.
*/
-VLC_EXPORT( void, es_format_Init, ( es_format_t *, int i_cat, vlc_fourcc_t i_codec ) );
+VLC_API void es_format_Init( es_format_t *, int i_cat, vlc_fourcc_t i_codec );
+
+/**
+ * This function will initialize a es_format_t structure from a video_format_t.
+ */
+VLC_API void es_format_InitFromVideo( es_format_t *, const video_format_t * );
/**
* This functions will copy a es_format_t.
*/
-VLC_EXPORT( int, es_format_Copy, ( es_format_t *p_dst, const es_format_t *p_src ) );
+VLC_API int es_format_Copy( es_format_t *p_dst, const es_format_t *p_src );
/**
- * This function will clean up a es_format_t and relasing all associated
+ * This function will clean up a es_format_t and release all associated
* resources.
* You can call it multiple times on the same structure.
*/
-VLC_EXPORT( void, es_format_Clean, ( es_format_t *fmt ) );
+VLC_API void es_format_Clean( es_format_t *fmt );
+
+/**
+ * This function will check if the first ES format is similar
+ * to the second one.
+ *
+ * All descriptive fields are ignored.
+ */
+VLC_API bool es_format_IsSimilar( const es_format_t *, const es_format_t * );
#endif
projects / vlc / blobdiff