FFmpeg: libavformat/libmodplug.c File Reference

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Data Structures | Macros | Enumerations | Functions | Variables

libmodplug.c File Reference

ModPlug demuxer. More...

#include <libmodplug/modplug.h>
#include "libavutil/avstring.h"
#include "libavutil/eval.h"
#include "libavutil/opt.h"
#include "avformat.h"
#include "internal.h"

Go to the source code of this file.

Data Structures

struct ModPlugContext

Macros

#define FF_MODPLUG_MAX_FILE_SIZE (100 * 1<<20)

#define FF_MODPLUG_DEF_FILE_SIZE ( 5 * 1<<20)

#define OFFSET(x) offsetof(ModPlugContext, x)

#define D AV_OPT_FLAG_DECODING_PARAM

#define SET_OPT_IF_REQUESTED(libopt, opt, flag)

#define ADD_META_MULTIPLE_ENTRIES(entry_name, fname)

#define AUDIO_PKT_SIZE 512

#define PRINT_INFO(line, name, idvalue)

Enumerations

enum var_name {
  VAR_B1, VAR_B2, VAR_S1, VAR_S2,
  VAR_T1, VAR_T2, VAR_NB, VAR_N,
  VAR_T, VAR_S, VAR_VARS_NB, VAR_TB,
  VAR_PTS, VAR_START_PTS, VAR_PREV_PTS, VAR_PREV_SELECTED_PTS,
  VAR_T, VAR_START_T, VAR_PREV_T, VAR_PREV_SELECTED_T,
  VAR_PICT_TYPE, VAR_I, VAR_P, VAR_B,
  VAR_S, VAR_SI, VAR_SP, VAR_BI,
  VAR_PICT_TYPE_I, VAR_PICT_TYPE_P, VAR_PICT_TYPE_B, VAR_PICT_TYPE_S,
  VAR_PICT_TYPE_SI, VAR_PICT_TYPE_SP, VAR_PICT_TYPE_BI, VAR_INTERLACE_TYPE,
  VAR_INTERLACE_TYPE_P, VAR_INTERLACE_TYPE_T, VAR_INTERLACE_TYPE_B, VAR_CONSUMED_SAMPLES_N,
  VAR_SAMPLES_N, VAR_SAMPLE_RATE, VAR_N, VAR_SELECTED_N,
  VAR_PREV_SELECTED_N, VAR_KEY, VAR_POS, VAR_SCENE,
  VAR_VARS_NB, VAR_AVTB, VAR_INTB, VAR_SR,
  VAR_VARS_NB, VAR_FRAME_RATE, VAR_INTERLACED, VAR_N,
  VAR_NB_CONSUMED_SAMPLES, VAR_NB_SAMPLES, VAR_POS, VAR_PREV_INPTS,
  VAR_PREV_INT, VAR_PREV_OUTPTS, VAR_PREV_OUTT, VAR_PTS,
  VAR_SAMPLE_RATE, VAR_STARTPTS, VAR_STARTT, VAR_T,
  VAR_TB, VAR_RTCTIME, VAR_RTCSTART, VAR_S,
  VAR_SR, VAR_VARS_NB, VAR_W, VAR_H,
  VAR_CW, VAR_CH, VAR_HSUB, VAR_VSUB,
  VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H,
  VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H,
  VAR_OH, VAR_A, VAR_SAR, VAR_DAR,
  VAR_HSUB, VAR_VSUB, VAR_X, VAR_Y,
  VAR_N, VAR_POS, VAR_T, VAR_VARS_NB,
  VAR_DAR, VAR_HSUB, VAR_VSUB, VAR_IN_H,
  VAR_IH, VAR_IN_W, VAR_IW, VAR_SAR,
  VAR_X, VAR_Y, VAR_H, VAR_W,
  VAR_T, VARS_NB, VAR_DAR, VAR_HSUB,
  VAR_VSUB, VAR_LINE_H, VAR_LH, VAR_MAIN_H,
  VAR_h, VAR_H, VAR_MAIN_W, VAR_w,
  VAR_W, VAR_MAX_GLYPH_A, VAR_ASCENT, VAR_MAX_GLYPH_D,
  VAR_DESCENT, VAR_MAX_GLYPH_H, VAR_MAX_GLYPH_W, VAR_N,
  VAR_SAR, VAR_T, VAR_TEXT_H, VAR_TH,
  VAR_TEXT_W, VAR_TW, VAR_X, VAR_Y,
  VAR_PICT_TYPE, VAR_VARS_NB, VAR_N, VAR_PTS,
  VAR_R, VAR_T, VAR_TB, VAR_NB,
  VAR_W, VAR_H, VAR_VAL, VAR_MAXVAL,
  VAR_MINVAL, VAR_NEGVAL, VAR_CLIPVAL, VAR_VARS_NB,
  VAR_MAIN_W, VAR_MW, VAR_MAIN_H, VAR_MH,
  VAR_OVERLAY_W, VAR_OW, VAR_OVERLAY_H, VAR_OH,
  VAR_HSUB, VAR_VSUB, VAR_X, VAR_Y,
  VAR_N, VAR_POS, VAR_T, VAR_VARS_NB,
  VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH,
  VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH,
  VAR_X, VAR_Y, VAR_A, VAR_SAR,
  VAR_DAR, VAR_HSUB, VAR_VSUB, VARS_NB,
  VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH,
  VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH,
  VAR_HSUB, VAR_VSUB, VAR_N, VAR_T,
  VAR_VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H,
  VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H,
  VAR_OH, VAR_A, VAR_SAR, VAR_DAR,
  VAR_HSUB, VAR_VSUB, VARS_NB, VAR_W,
  VAR_H, VAR_N, VAR_PTS, VAR_R,
  VAR_T, VAR_TB, VAR_NB, VAR_X,
  VAR_Y, VAR_W, VAR_H, VAR_TIME,
  VAR_SPEED, VAR_TEMPO, VAR_ORDER, VAR_PATTERN,
  VAR_ROW, VAR_VARS_NB
}

Functions

static int modplug_load_metadata (AVFormatContext *s)

static int modplug_read_header (AVFormatContext *s)

static void write_text (uint8_t *dst, const char *s, int linesize, int x, int y)

static int modplug_read_packet (AVFormatContext *s, AVPacket *pkt)

static int modplug_read_close (AVFormatContext *s)

static int modplug_read_seek (AVFormatContext *s, int stream_idx, int64_t ts, int flags)

static int modplug_probe (AVProbeData *p)

Variables

static const char * var_names []

static const AVOption options []

static const char modplug_extensions [] = "669,abc,amf,ams,dbm,dmf,dsm,far,it,mdl,med,mid,mod,mt2,mtm,okt,psm,ptm,s3m,stm,ult,umx,xm,itgz,itr,itz,mdgz,mdr,mdz,s3gz,s3r,s3z,xmgz,xmr,xmz"

static const AVClass modplug_class

AVInputFormat ff_libmodplug_demuxer

Detailed Description

ModPlug demuxer.

Todo:: better probing than extensions matching

Definition in file libmodplug.c.

Macro Definition Documentation

#define FF_MODPLUG_MAX_FILE_SIZE (100 * 1<<20)

Definition at line 78 of file libmodplug.c.

#define FF_MODPLUG_DEF_FILE_SIZE ( 5 * 1<<20)

Definition at line 79 of file libmodplug.c.

Referenced by modplug_read_header().

#define OFFSET ( x ) offsetof(ModPlugContext, x)

Definition at line 81 of file libmodplug.c.

#define D AV_OPT_FLAG_DECODING_PARAM

Definition at line 82 of file libmodplug.c.

#define SET_OPT_IF_REQUESTED ( libopt,

opt,

flag

)

Value:

do { \

if (modplug->opt) { \

settings.libopt = modplug->opt; \

settings.mFlags |= flag; \

} \

} while (0)

Definition at line 101 of file libmodplug.c.

Referenced by modplug_read_header().

#define ADD_META_MULTIPLE_ENTRIES ( entry_name,

fname

)

Value:

do { \

if (n_## entry_name ##s) { \

unsigned i, n = 0; \

for (i = 0; i < n_## entry_name ##s; i++) { \

char item_name[64] = {0}; \

fname(f, i, item_name); \

if (!*item_name) \

continue; \

if (n) \

av_dict_set(&s->metadata, #entry_name, "\n", AV_DICT_APPEND); \

av_dict_set(&s->metadata, #entry_name, item_name, AV_DICT_APPEND); \

n++; \

} \

extra = av_asprintf(", %u/%u " #entry_name "%s", \

n, n_## entry_name ##s, n > 1 ? "s" : ""); \

if (!extra) \

return AVERROR(ENOMEM); \

av_dict_set(&s->metadata, "extra info", extra, AV_DICT_APPEND); \

av_free(extra); \

} \

} while (0)

Definition at line 108 of file libmodplug.c.

Referenced by modplug_load_metadata().

#define AUDIO_PKT_SIZE 512

Definition at line 161 of file libmodplug.c.

Referenced by modplug_read_header(), and modplug_read_packet().

#define PRINT_INFO ( line,

name,

idvalue

)

Value:

do { \

snprintf(intbuf, sizeof(intbuf), "%.0f", var_values[idvalue]); \

write_text(pkt->data, name ":", modplug->linesize, 0+1, line+1); \

write_text(pkt->data, intbuf, modplug->linesize, 10+1, line+1); \

} while (0)

Definition at line 262 of file libmodplug.c.

Referenced by modplug_read_packet().

Enumeration Type Documentation

enum var_name

Enumerator:: VAR_B1

VAR_B2

VAR_S1

VAR_S2

VAR_T1

VAR_T2

VAR_NB

VAR_N

VAR_T

VAR_S

VAR_VARS_NB

VAR_TB

VAR_PTS

VAR_START_PTS

VAR_PREV_PTS

VAR_PREV_SELECTED_PTS

VAR_T

VAR_START_T

VAR_PREV_T

VAR_PREV_SELECTED_T

VAR_PICT_TYPE

VAR_I

VAR_P

VAR_B

VAR_S

VAR_SI

VAR_SP

VAR_BI

VAR_PICT_TYPE_I

VAR_PICT_TYPE_P

VAR_PICT_TYPE_B

VAR_PICT_TYPE_S

VAR_PICT_TYPE_SI

VAR_PICT_TYPE_SP

VAR_PICT_TYPE_BI

VAR_INTERLACE_TYPE

VAR_INTERLACE_TYPE_P

VAR_INTERLACE_TYPE_T

VAR_INTERLACE_TYPE_B

VAR_CONSUMED_SAMPLES_N

VAR_SAMPLES_N

VAR_SAMPLE_RATE

VAR_N

VAR_SELECTED_N

VAR_PREV_SELECTED_N

VAR_KEY

VAR_POS

VAR_SCENE

VAR_VARS_NB

VAR_AVTB

VAR_INTB

VAR_SR

VAR_VARS_NB

VAR_FRAME_RATE

VAR_INTERLACED

VAR_N

VAR_NB_CONSUMED_SAMPLES

VAR_NB_SAMPLES

VAR_POS

VAR_PREV_INPTS

VAR_PREV_INT

VAR_PREV_OUTPTS

VAR_PREV_OUTT

VAR_PTS

VAR_SAMPLE_RATE

VAR_STARTPTS

VAR_STARTT

VAR_T

VAR_TB

VAR_RTCTIME

VAR_RTCSTART

VAR_S

VAR_SR

VAR_VARS_NB

VAR_W

VAR_H

VAR_CW

VAR_CH

VAR_HSUB

VAR_VSUB

VARS_NB

VAR_IN_W

VAR_IW

VAR_IN_H

VAR_IH

VAR_OUT_W

VAR_OW

VAR_OUT_H

VAR_OH

VAR_A

VAR_SAR

VAR_DAR

VAR_HSUB

VAR_VSUB

VAR_X

VAR_Y

VAR_N

VAR_POS

VAR_T

VAR_VARS_NB

VAR_DAR

VAR_HSUB

VAR_VSUB

VAR_IN_H

VAR_IH

VAR_IN_W

VAR_IW

VAR_SAR

VAR_X

VAR_Y

VAR_H

VAR_W

VAR_T

VARS_NB

VAR_DAR

VAR_HSUB

VAR_VSUB

VAR_LINE_H

VAR_LH

VAR_MAIN_H

VAR_h

VAR_H

VAR_MAIN_W

VAR_w

VAR_W

VAR_MAX_GLYPH_A

VAR_ASCENT

VAR_MAX_GLYPH_D

VAR_DESCENT

VAR_MAX_GLYPH_H

VAR_MAX_GLYPH_W

VAR_N

VAR_SAR

VAR_T

VAR_TEXT_H

VAR_TH

VAR_TEXT_W

VAR_TW

VAR_X

VAR_Y

VAR_PICT_TYPE

VAR_VARS_NB

VAR_N

VAR_PTS

VAR_R

VAR_T

VAR_TB

VAR_NB

VAR_W

VAR_H

VAR_VAL

VAR_MAXVAL

VAR_MINVAL

VAR_NEGVAL

VAR_CLIPVAL

VAR_VARS_NB

VAR_MAIN_W

VAR_MW

VAR_MAIN_H

VAR_MH

VAR_OVERLAY_W

VAR_OW

VAR_OVERLAY_H

VAR_OH

VAR_HSUB

VAR_VSUB

VAR_X

VAR_Y

VAR_N

VAR_POS

VAR_T

VAR_VARS_NB

VAR_IN_W

VAR_IW

VAR_IN_H

VAR_IH

VAR_OUT_W

VAR_OW

VAR_OUT_H

VAR_OH

VAR_X

VAR_Y

VAR_A

VAR_SAR

VAR_DAR

VAR_HSUB

VAR_VSUB

VARS_NB

VAR_IN_W

VAR_IW

VAR_IN_H

VAR_IH

VAR_OUT_W

VAR_OW

VAR_OUT_H

VAR_OH

VAR_HSUB

VAR_VSUB

VAR_N

VAR_T

VAR_VARS_NB

VAR_IN_W

VAR_IW

VAR_IN_H

VAR_IH

VAR_OUT_W

VAR_OW

VAR_OUT_H

VAR_OH

VAR_A

VAR_SAR

VAR_DAR

VAR_HSUB

VAR_VSUB

VARS_NB

VAR_W

VAR_H

VAR_N

VAR_PTS

VAR_R

VAR_T

VAR_TB

VAR_NB

VAR_X

VAR_Y

VAR_W

VAR_H

VAR_TIME

VAR_SPEED

VAR_TEMPO

VAR_ORDER

VAR_PATTERN

VAR_ROW

VAR_VARS_NB

Definition at line 70 of file libmodplug.c.

Function Documentation

static int modplug_load_metadata ( AVFormatContext * s )

static

Definition at line 132 of file libmodplug.c.

Referenced by modplug_read_header().

static int modplug_read_header ( AVFormatContext * s )

static

Definition at line 163 of file libmodplug.c.

static void write_text ( uint8_t * dst,

const char * s,

int linesize,

int x,

int y

)

static

Definition at line 251 of file libmodplug.c.

static int modplug_read_packet ( AVFormatContext * s,

AVPacket * pkt

)

static

Definition at line 268 of file libmodplug.c.

static int modplug_read_close ( AVFormatContext * s )

static

Definition at line 333 of file libmodplug.c.

static int modplug_read_seek ( AVFormatContext * s,

int stream_idx,

int64_t ts,

int flags

)

static

Definition at line 341 of file libmodplug.c.

static int modplug_probe ( AVProbeData * p )

static

Definition at line 352 of file libmodplug.c.

Variable Documentation

const char* var_names[]

static

Initial value:

= {

"x", "y",

"w", "h",

"t",

"speed", "tempo", "order", "pattern", "row",

NULL

}

Definition at line 62 of file libmodplug.c.

Referenced by modplug_read_header().

const AVOption options[]

static

Initial value:

= {

{"noise_reduction", "Enable noise reduction 0(off)-1(on)", OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, D},

{"reverb_depth", "Reverb level 0(quiet)-100(loud)", OFFSET(reverb_depth), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 100, D},

{"reverb_delay", "Reverb delay in ms, usually 40-200ms", OFFSET(reverb_delay), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, D},

{"bass_amount", "XBass level 0(quiet)-100(loud)", OFFSET(bass_amount), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 100, D},

{"bass_range", "XBass cutoff in Hz 10-100", OFFSET(bass_range), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 100, D},

{"surround_depth", "Surround level 0(quiet)-100(heavy)", OFFSET(surround_depth), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 100, D},

{"surround_delay", "Surround delay in ms, usually 5-40ms", OFFSET(surround_delay), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, D},

{"max_size", "Max file size supported (in bytes). Default is 5MB. Set to 0 for no limit (not recommended)",

OFFSET(max_size), AV_OPT_TYPE_INT, {.i64 = FF_MODPLUG_DEF_FILE_SIZE}, 0, FF_MODPLUG_MAX_FILE_SIZE, D},

{"video_stream_expr", "Color formula", OFFSET(color_eval), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, D},

{"video_stream", "Make demuxer output a video stream", OFFSET(video_stream), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, D},

{"video_stream_w", "Video stream width in char (one char = 8x8px)", OFFSET(w), AV_OPT_TYPE_INT, {.i64 = 30}, 20, 512, D},

{"video_stream_h", "Video stream height in char (one char = 8x8px)", OFFSET(h), AV_OPT_TYPE_INT, {.i64 = 30}, 20, 512, D},

{"video_stream_ptxt", "Print speed, tempo, order, ... in video stream", OFFSET(print_textinfo), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, D},

{NULL},

}

Definition at line 83 of file libmodplug.c.

const char modplug_extensions[] = "669,abc,amf,ams,dbm,dmf,dsm,far,it,mdl,med,mid,mod,mt2,mtm,okt,psm,ptm,s3m,stm,ult,umx,xm,itgz,itr,itz,mdgz,mdr,mdz,s3gz,s3r,s3z,xmgz,xmr,xmz"

static

Definition at line 350 of file libmodplug.c.

Referenced by modplug_probe().

const AVClass modplug_class

static

Initial value:

= {

.class_name = "ModPlug demuxer",

.item_name = av_default_item_name,

.option = options,

.version = LIBAVUTIL_VERSION_INT,

}