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25 #define MODPLUG_STATIC
26 #include <libmodplug/modplug.h>
67 "speed",
"tempo",
"order",
"pattern",
"row",
79 #define FF_MODPLUG_MAX_FILE_SIZE (100 * 1<<20) // 100M
80 #define FF_MODPLUG_DEF_FILE_SIZE ( 5 * 1<<20) // 5M
82 #define OFFSET(x) offsetof(ModPlugContext, x)
83 #define D AV_OPT_FLAG_DECODING_PARAM
85 {
"noise_reduction",
"Enable noise reduction 0(off)-1(on)",
OFFSET(noise_reduction),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1,
D},
86 {
"reverb_depth",
"Reverb level 0(quiet)-100(loud)",
OFFSET(reverb_depth),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, 100,
D},
87 {
"reverb_delay",
"Reverb delay in ms, usually 40-200ms",
OFFSET(reverb_delay),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX,
D},
88 {
"bass_amount",
"XBass level 0(quiet)-100(loud)",
OFFSET(bass_amount),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, 100,
D},
90 {
"surround_depth",
"Surround level 0(quiet)-100(heavy)",
OFFSET(surround_depth),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, 100,
D},
91 {
"surround_delay",
"Surround delay in ms, usually 5-40ms",
OFFSET(surround_delay),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX,
D},
92 {
"max_size",
"Max file size supported (in bytes). Default is 5MB. Set to 0 for no limit (not recommended)",
96 {
"video_stream_w",
"Video stream width in char (one char = 8x8px)",
OFFSET(
w),
AV_OPT_TYPE_INT, {.i64 = 30}, 20, 512,
D},
97 {
"video_stream_h",
"Video stream height in char (one char = 8x8px)",
OFFSET(
h),
AV_OPT_TYPE_INT, {.i64 = 30}, 20, 512,
D},
98 {
"video_stream_ptxt",
"Print speed, tempo, order, ... in video stream",
OFFSET(print_textinfo),
AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1,
D},
105 ModPlug_Unload(modplug->
f);
110 #define SET_OPT_IF_REQUESTED(libopt, opt, flag) do { \
111 if (modplug->opt) { \
112 settings.libopt = modplug->opt; \
113 settings.mFlags |= flag; \
117 #define ADD_META_MULTIPLE_ENTRIES(entry_name, fname) do { \
118 if (n_## entry_name ##s) { \
121 for (i = 0; i < n_## entry_name ##s; i++) { \
122 char item_name[64] = {0}; \
123 fname(f, i, item_name); \
127 av_dict_set(&s->metadata, #entry_name, "\n", AV_DICT_APPEND); \
128 av_dict_set(&s->metadata, #entry_name, item_name, AV_DICT_APPEND); \
132 extra = av_asprintf(", %u/%u " #entry_name "%s", \
133 n, n_## entry_name ##s, n > 1 ? "s" : ""); \
135 return AVERROR(ENOMEM); \
136 av_dict_set(&s->metadata, "extra info", extra, AV_DICT_APPEND); \
144 ModPlugFile *
f = modplug->
f;
146 const char *
name = ModPlug_GetName(
f);
147 const char *msg = ModPlug_GetMessage(
f);
149 unsigned n_instruments = ModPlug_NumInstruments(
f);
150 unsigned n_samples = ModPlug_NumSamples(
f);
151 unsigned n_patterns = ModPlug_NumPatterns(
f);
152 unsigned n_channels = ModPlug_NumChannels(
f);
155 if (msg && *msg)
av_dict_set(&
s->metadata,
"message", msg, 0);
158 n_patterns, n_patterns > 1 ?
"s" :
"",
159 n_channels, n_channels > 1 ?
"s" :
"");
170 #define AUDIO_PKT_SIZE 512
176 ModPlug_Settings settings;
187 "but demuxing is likely to fail due to incomplete buffer\n",
203 ModPlug_GetSettings(&settings);
204 settings.mChannels = 2;
206 settings.mFrequency = 44100;
207 settings.mResamplingMode = MODPLUG_RESAMPLE_FIR;
208 settings.mLoopCount = 0;
210 if (modplug->
noise_reduction) settings.mFlags |= MODPLUG_ENABLE_NOISE_REDUCTION;
225 ModPlug_SetSettings(&settings);
227 modplug->
f = ModPlug_Load(modplug->
buf, sz);
238 st->
duration = ModPlug_GetLength(modplug->
f);
272 static void write_text(uint8_t *dst,
const char *
s,
int linesize,
int x,
int y)
275 dst += y*linesize + x*3;
276 for (
i = 0;
s[
i];
i++, dst += 3) {
283 #define PRINT_INFO(line, name, idvalue) do { \
284 snprintf(intbuf, sizeof(intbuf), "%.0f", var_values[idvalue]); \
285 write_text(pkt->data, name ":", modplug->linesize, 0+1, line+1); \
286 write_text(pkt->data, intbuf, modplug->linesize, 10+1, line+1); \
299 var_values[
VAR_W ] = modplug->
w;
300 var_values[
VAR_H ] = modplug->
h;
302 var_values[
VAR_SPEED ] = ModPlug_GetCurrentSpeed (modplug->
f);
303 var_values[
VAR_TEMPO ] = ModPlug_GetCurrentTempo (modplug->
f);
304 var_values[
VAR_ORDER ] = ModPlug_GetCurrentOrder (modplug->
f);
305 var_values[
VAR_PATTERN] = ModPlug_GetCurrentPattern(modplug->
f);
306 var_values[
VAR_ROW ] = ModPlug_GetCurrentRow (modplug->
f);
325 for (y = 0; y < modplug->
h; y++) {
326 for (x = 0; x < modplug->
w; x++) {
328 var_values[
VAR_X] = x;
329 var_values[
VAR_Y] = y;
357 ModPlug_Seek(modplug->
f, (
int)ts);
363 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";
384 .
name =
"libmodplug",
#define AV_LOG_WARNING
Something somehow does not look correct.
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
static const AVOption options[]
enum AVMediaType codec_type
General type of the encoded data.
AVStream * avformat_new_stream(AVFormatContext *s, const struct AVCodec *c)
Add a new stream to a media file.
#define AVERROR_EOF
End of file.
#define SET_OPT_IF_REQUESTED(libopt, opt, flag)
char * av_asprintf(const char *fmt,...)
const AVInputFormat ff_libmodplug_demuxer
int buf_size
Size of buf except extra allocated bytes.
int nb_channels
Number of channels in this layout.
int64_t avio_size(AVIOContext *s)
Get the filesize.
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
int linesize
line size in bytes
static int modplug_read_packet(AVFormatContext *s, AVPacket *pkt)
int av_expr_parse(AVExpr **expr, const char *s, const char *const *const_names, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), int log_offset, void *log_ctx)
Parse an expression.
static int modplug_probe(const AVProbeData *p)
int print_textinfo
bool flag for printing speed, tempo, order, ...
static void write_text(uint8_t *dst, const char *s, int linesize, int x, int y)
static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp, int flags)
static av_cold int read_close(AVFormatContext *ctx)
int64_t duration
Decoding: duration of the stream, in stream time base.
static int modplug_read_close(AVFormatContext *s)
#define AV_DICT_DONT_STRDUP_VAL
Take ownership of a value that's been allocated with av_malloc() or another memory allocation functio...
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
static AVStream * video_stream
int w
video stream width in char (one char = 8x8px)
int av_match_ext(const char *filename, const char *extensions)
Return a positive value if the given filename has one of the given extensions, 0 otherwise.
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
int packet_count
total number of audio packets
AVCodecParameters * codecpar
Codec parameters associated with this stream.
#define LIBAVUTIL_VERSION_INT
static int read_header(FFV1Context *f)
Describe the class of an AVClass context structure.
int fsize
constant frame size
static int modplug_read_seek(AVFormatContext *s, int stream_idx, int64_t ts, int flags)
#define ADD_META_MULTIPLE_ENTRIES(entry_name, fname)
double ts_per_packet
used to define the pts/dts using packet_count;
const char * av_default_item_name(void *ptr)
Return the context name.
#define FF_MODPLUG_DEF_FILE_SIZE
This structure contains the data a format has to probe a file.
AVChannelLayout ch_layout
Audio only.
int sample_rate
Audio only.
uint8_t * buf
input file content
AVExpr * expr
parsed color eval expression
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static const uint32_t color[16+AV_CLASS_CATEGORY_NB]
int max_size
max file size to allocate
int video_stream
1 if the user want a video stream, otherwise 0
static const char *const var_names[]
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed.
int flags
A combination of AV_PKT_FLAG values.
#define i(width, name, range_min, range_max)
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
#define xf(width, name, var, range_min, range_max, subs,...)
static const AVClass modplug_class
int video_switch
1 if current packet is video, otherwise 0
int h
video stream height in char (one char = 8x8px)
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
static int modplug_read_header(AVFormatContext *s)
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
static int read_probe(const AVProbeData *p)
static const char modplug_extensions[]
#define FF_MODPLUG_MAX_FILE_SIZE
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
This structure stores compressed data.
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
char * color_eval
color eval user input expression
#define flags(name, subs,...)
#define PRINT_INFO(line, name, idvalue)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
static int modplug_load_metadata(AVFormatContext *s)