mmfile.c File Reference

#include "race.h"
#include "mmfile.h"
#include "int_types.h"
#include "macros.h"
#include "utils.h"
#include "logging.h"
#include <math.h>
#include <assert.h>
#include <stdio.h>
#include <memory.h>
#include <stdlib.h>
#include <limits.h>
#include <ogg/ogg.h>
#include <vorbis/codec.h>
#include <theora/theora.h>
#include <SDL.h>

Go to the source code of this file.

Functions
static int	get_packet (mm_file *mf, ogg_packet *pkt, enum stream_type type)
static int	get_page (mm_file *mf, ogg_page *pg)
	--
static int	init_theora (mm_file *mf, ogg_page *pg)
static int	init_vorbis (mm_file *mf, ogg_page *pg)
	LOG_DEFAULT_CATEGORY (multimedia)
int	mm_audio_info (const mm_file *mf, unsigned *channels, unsigned *rate)
	Returns: rval < 0: no audio in file
int	mm_close (mm_file *mf)
int	mm_decode_audio (mm_file *mf, void *buf, int buflen)
int	mm_decode_video (mm_file *mf, SDL_Overlay *ovl)
unsigned	mm_ignore (mm_file *mf, unsigned mask)
int	mm_open (mm_file *mf, const char *fname)
int	mm_open_fp (mm_file *mf, FILE *file)
int	mm_video_info (const mm_file *mf, unsigned *width, unsigned *height, float *fps)
	Returns: rval < 0: no video in file
static int	yuv_to_overlay (const mm_file *mf, const yuv_buffer *yuv, SDL_Overlay *ovl)

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Function Documentation

static int get_packet	(	mm_file *	mf,
		ogg_packet *	pkt,
		enum stream_type	type
	)			[static]

Definition at line 78 of file mmfile.c.

References mm_file::audio, mm_file::drop_packets, mm_file::end_of_stream, get_page(), INFO2, MEDIA_AUDIO, MEDIA_VIDEO, other, mm_file::video, and WARNING2.

Referenced by mm_decode_audio(), and mm_decode_video().

static int get_page	(	mm_file *	mf,
		ogg_page *	pg
	)			[static]

--

Returns:

-1 on error

0 on end of file

1 on successful page read

Definition at line 44 of file mmfile.c.

References bufsize, ERROR1, mm_file::file, and mm_file::sync.

Referenced by get_packet(), init_theora(), init_vorbis(), and mm_open_fp().

static int init_theora	(	mm_file *	mf,
		ogg_page *	pg
	)			[static]

Definition at line 146 of file mmfile.c.

References get_page(), INFO1, mm_file::video, mm_file::video_ctx, mm_file::video_info, and xmalloc().

Referenced by mm_open_fp().

static int init_vorbis	(	mm_file *	mf,
		ogg_page *	pg
	)			[static]

Definition at line 218 of file mmfile.c.

References mm_file::audio, mm_file::audio_blk, mm_file::audio_ctx, mm_file::audio_info, get_page(), INFO1, and xmalloc().

Referenced by mm_open_fp().

LOG_DEFAULT_CATEGORY

(

multimedia

)

int mm_audio_info	(	const mm_file *	mf,
		unsigned *	channels,
		unsigned *	rate
	)

Returns:

rval < 0: no audio in file

Definition at line 514 of file mmfile.c.

Referenced by load_audio_file(), main(), mm_decode_audio(), and mm_open_fp().

int mm_close

(

mm_file *

mf

)

Definition at line 438 of file mmfile.c.

Referenced by AbzFrame(), load_audio_file(), LoadNewsAnim(), main(), mm_open_fp(), News(), PlaySequence(), and Replay().

int mm_decode_audio	(	mm_file *	mf,
		void *	buf,
		int	buflen
	)

Definition at line 564 of file mmfile.c.

Referenced by load_audio_file(), and main().

int mm_decode_video	(	mm_file *	mf,
		SDL_Overlay *	ovl
	)

Definition at line 527 of file mmfile.c.

Referenced by AbzFrame(), LoadNewsAnim(), main(), PlayNewsAnim(), PlaySequence(), and Replay().

unsigned mm_ignore	(	mm_file *	mf,
		unsigned	mask
	)

Definition at line 429 of file mmfile.c.

int mm_open	(	mm_file *	mf,
		const char *	fname
	)

Definition at line 420 of file mmfile.c.

Referenced by main().

int mm_open_fp	(	mm_file *	mf,
		FILE *	file
	)

Definition at line 366 of file mmfile.c.

Referenced by AbzFrame(), load_audio_file(), LoadNewsAnim(), mm_open(), PlaySequence(), and Replay().

int mm_video_info	(	const mm_file *	mf,
		unsigned *	width,
		unsigned *	height,
		float *	fps
	)

Returns:

rval < 0: no video in file

Definition at line 494 of file mmfile.c.

Referenced by AbzFrame(), LoadNewsAnim(), main(), mm_open_fp(), PlaySequence(), and Replay().

static int yuv_to_overlay	(	const mm_file *	mf,
		const yuv_buffer *	yuv,
		SDL_Overlay *	ovl
	)			[static]

Definition at line 295 of file mmfile.c.

References min, mm_file::video_info, and WARNING1.

Referenced by mm_decode_video().

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