X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=include%2Fvlc_es.h;h=556b4143f10582ce6caa5b359c71da07f04af316;hb=12ade3e3bc975d5426ba4af155b7372c31093b31;hp=b204c07612e959c948f0ac625716d9a0a8998a23;hpb=3439df81011c06ba3c10b6aaf649732298f94622;p=vlc diff --git a/include/vlc_es.h b/include/vlc_es.h index b204c07612..556b4143f1 100644 --- a/include/vlc_es.h +++ b/include/vlc_es.h @@ -1,8 +1,8 @@ /***************************************************************************** - * vlc_es.h + * vlc_es.h: Elementary stream formats descriptions ***************************************************************************** - * Copyright (C) 1999-2001 VideoLAN - * $Id: vlc_es.h,v 1.4 2003/11/24 00:39:00 fenrir Exp $ + * Copyright (C) 1999-2001 the VideoLAN team + * $Id$ * * Authors: Laurent Aimar * @@ -18,35 +18,71 @@ * * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA. + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ -#ifndef _VLC_ES_H -#define _VLC_ES_H 1 +#ifndef VLC_ES_H +#define VLC_ES_H 1 + +#include /** - * Description of a audio frame + * \file + * This file defines the elementary streams format types */ -struct audio_format_t + +/** + * video palette data + * \see video_format_t + * \see subs_format_t + */ +struct video_palette_t { - vlc_fourcc_t i_format; + int i_entries; /**< to keep the compatibility with ffmpeg's palette */ + uint8_t palette[256][4]; /**< 4-byte RGBA/YUVA palette */ +}; - unsigned int i_rate; +/** + * audio replay gain description + */ +#define AUDIO_REPLAY_GAIN_MAX (2) +#define AUDIO_REPLAY_GAIN_TRACK (0) +#define AUDIO_REPLAY_GAIN_ALBUM (1) +typedef struct +{ + /* true if we have the peak value */ + bool pb_peak[AUDIO_REPLAY_GAIN_MAX]; + /* peak value where 1.0 means full sample value */ + float pf_peak[AUDIO_REPLAY_GAIN_MAX]; + + /* true if we have the gain value */ + bool pb_gain[AUDIO_REPLAY_GAIN_MAX]; + /* gain value in dB */ + float pf_gain[AUDIO_REPLAY_GAIN_MAX]; +} audio_replay_gain_t; + +/** + * audio format description + */ +struct audio_format_t +{ + vlc_fourcc_t i_format; /**< audio format fourcc */ + unsigned int i_rate; /**< audio sample-rate */ /* Describes the channels configuration of the samples (ie. number of * channels which are available in the buffer, and positions). */ - uint32_t i_physical_channels; + uint32_t i_physical_channels; /* Describes from which original channels, before downmixing, the * buffer is derived. */ - uint32_t i_original_channels; + uint32_t i_original_channels; /* Optional - for A/52, SPDIF and DTS types : */ /* Bytes used by one compressed frame, depends on bitrate. */ - unsigned int i_bytes_per_frame; + unsigned int i_bytes_per_frame; /* Number of sampleframes contained in one compressed frame. */ - unsigned int i_frame_length; + unsigned int i_frame_length; /* Please note that it may be completely arbitrary - buffers are not * obliged to contain a integral number of so-called "frames". It's * just here for the division : @@ -54,18 +90,17 @@ struct audio_format_t */ /* FIXME ? (used by the codecs) */ - int i_channels; - int i_blockalign; - int i_bitspersample; + unsigned i_bitspersample; + unsigned i_blockalign; + uint8_t i_channels; /* must be <=32 */ }; /** - * Description of a video frame + * 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 */ @@ -76,94 +111,207 @@ struct video_format_t unsigned int i_bits_per_pixel; /**< number of bits per pixel */ + unsigned int i_sar_num; /**< sample/pixel aspect ratio */ + unsigned int i_sar_den; + unsigned int i_frame_rate; /**< frame rate numerator */ unsigned int i_frame_rate_base; /**< frame rate denominator */ + + 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 */ }; /** - * Description of subs + * Initialize a video_format_t structure with chroma 'i_chroma' + * \param p_src pointer to video_format_t structure + * \param i_chroma chroma value to use + */ +static inline void video_format_Init( video_format_t *p_src, vlc_fourcc_t i_chroma ) +{ + memset( p_src, 0, sizeof( video_format_t ) ); + p_src->i_chroma = i_chroma; + p_src->i_sar_num = p_src->i_sar_den = 1; + p_src->p_palette = NULL; +} + +/** + * Copy video_format_t including the palette + * \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, const video_format_t *p_src ) +{ + 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( *p_dst->p_palette ) ); + } + return VLC_SUCCESS; +} + +/** + * Cleanup and free palette of this video_format_t + * \param p_src video_format_t structure to clean + */ +static inline void video_format_Clean( video_format_t *p_src ) +{ + free( p_src->p_palette ); + memset( p_src, 0, sizeof( video_format_t ) ); + p_src->p_palette = NULL; +} + +/** + * It will fill up a video_format_tvideo_format_t using the given arguments. + * Becarefull that the video_format_t must already be initialized. + */ +VLC_EXPORT( 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 ) ); + +/** + * This function will check if the first video format is similar + * to the second one. + */ +VLC_EXPORT( bool, video_format_IsSimilar, ( const video_format_t *, const video_format_t * ) ); + +/** + * It prints details about the given video_format_t + */ +VLC_EXPORT( void, video_format_Print, ( vlc_object_t *, const char *, const video_format_t * ) ); + +/** + * subtitles format description */ struct subs_format_t { + /* the character encoding of the text of the subtitle. + * all gettext recognized shorts can be used */ char *psz_encoding; + + int i_x_origin; /**< x coordinate of the subtitle. 0 = left */ + int i_y_origin; /**< y coordinate of the subtitle. 0 = top */ + struct { - /* FIXME */ + /* */ uint32_t palette[16+1]; + + /* the width of the original movie the spu was extracted from */ + int i_original_frame_width; + /* the height of the original movie the spu was extracted from */ + int i_original_frame_height; } spu; + + struct + { + int i_id; + } dvb; + struct + { + int i_magazine; + int i_page; + } teletext; }; /** - * ES definition + * ES language definition + */ +typedef struct extra_languages_t +{ + char *psz_language; + char *psz_description; +} extra_languages_t; + +/** + * ES format definition */ struct es_format_t { - int i_cat; - vlc_fourcc_t i_codec; + 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_group; /* -1 : standalone - >= 0 then a "group" (program) is created + int i_id; /**< es identifier, where means + -1: let the core mark the right id + >=0: valid id */ + int i_group; /**< group identifier, where means: + -1 : standalone + >= 0 then a "group" (program) is created for each value */ - int i_priority; /* -2 : mean not selectable by the users + int i_priority; /**< priority, where means: + -2 : mean not selectable by the users -1 : mean not selected by default even - when no other stream + when no other stream >=0: priority */ - char *psz_language; - char *psz_description; - audio_format_t audio; - video_format_t video; - subs_format_t subs; + char *psz_language; /**< human readible language name */ + char *psz_description; /**< human readible description of language */ + int i_extra_languages; /**< length in bytes of extra language data pointer */ + extra_languages_t *p_extra_languages; /**< extra language data needed by some decoders */ - int i_bitrate; + audio_format_t audio; /**< description of audio format */ + audio_replay_gain_t audio_replay_gain; /*< audio replay gain information */ + video_format_t video; /**< description of video format */ + subs_format_t subs; /**< description of subtitle format */ - int i_extra; - void *p_extra; + 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) */ + int i_extra; /**< length in bytes of extra data pointer */ + void *p_extra; /**< extra data needed by some decoders or muxers */ -/* ES Categories */ -#define UNKNOWN_ES 0x00 -#define VIDEO_ES 0x01 -#define AUDIO_ES 0x02 -#define SPU_ES 0x03 -#define NAV_ES 0x04 +}; -static inline void es_format_Init( es_format_t *fmt, - int i_cat, vlc_fourcc_t i_codec ) +/** ES Categories */ +enum es_format_category_e { - fmt->i_cat = i_cat; - fmt->i_codec = i_codec; - fmt->i_group = 0; - fmt->i_priority = 0; - fmt->psz_language = NULL; - fmt->psz_description = NULL; - - memset( &fmt->audio, 0, sizeof(audio_format_t) ); - memset( &fmt->video, 0, sizeof(video_format_t) ); - memset( &fmt->subs, 0, sizeof(subs_format_t) ); - - fmt->i_bitrate = 0; - fmt->i_extra = 0; - fmt->p_extra = NULL; -} + UNKNOWN_ES = 0x00, + VIDEO_ES = 0x01, + AUDIO_ES = 0x02, + SPU_ES = 0x03, + NAV_ES = 0x04, +}; -static inline void es_format_Copy( es_format_t *dst, es_format_t *src ) -{ - memcpy( dst, src, sizeof( es_format_t ) ); - if( src->i_extra > 0 ) - { - dst->p_extra = malloc( src->i_extra ); - memcpy( dst->p_extra, src->p_extra, - src->i_extra ); - } - else - { - dst->i_extra = 0; - dst->p_extra = NULL; - } -} +/** + * This function will fill all RGB shift from RGB masks. + */ +VLC_EXPORT( void, video_format_FixRgb, ( video_format_t * ) ); -#endif +/** + * 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 ) ); +/** + * This function will initialize a es_format_t structure from a video_format_t. + */ +VLC_EXPORT( 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 ) ); + +/** + * This function will clean up a es_format_t and relasing all associated + * resources. + * You can call it multiple times on the same structure. + */ +VLC_EXPORT( 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_EXPORT( bool, es_format_IsSimilar, ( const es_format_t *, const es_format_t * ) ); + +#endif