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 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},
102 #define SET_OPT_IF_REQUESTED(libopt, opt, flag) do { \ 103 if (modplug->opt) { \ 104 settings.libopt = modplug->opt; \ 105 settings.mFlags |= flag; \ 109 #define ADD_META_MULTIPLE_ENTRIES(entry_name, fname) do { \ 110 if (n_## entry_name ##s) { \ 113 for (i = 0; i < n_## entry_name ##s; i++) { \ 114 char item_name[64] = {0}; \ 115 fname(f, i, item_name); \ 119 av_dict_set(&s->metadata, #entry_name, "\n", AV_DICT_APPEND); \ 120 av_dict_set(&s->metadata, #entry_name, item_name, AV_DICT_APPEND); \ 124 extra = av_asprintf(", %u/%u " #entry_name "%s", \ 125 n, n_## entry_name ##s, n > 1 ? "s" : ""); \ 127 return AVERROR(ENOMEM); \ 128 av_dict_set(&s->metadata, "extra info", extra, AV_DICT_APPEND); \ 136 ModPlugFile *
f = modplug->
f;
138 const char *
name = ModPlug_GetName(f);
139 const char *msg = ModPlug_GetMessage(f);
141 unsigned n_instruments = ModPlug_NumInstruments(f);
142 unsigned n_samples = ModPlug_NumSamples(f);
143 unsigned n_patterns = ModPlug_NumPatterns(f);
144 unsigned n_channels = ModPlug_NumChannels(f);
150 n_patterns, n_patterns > 1 ?
"s" :
"",
151 n_channels, n_channels > 1 ?
"s" :
"");
162 #define AUDIO_PKT_SIZE 512 168 ModPlug_Settings settings;
178 "but demuxing is likely to fail due to incomplete buffer\n",
194 ModPlug_GetSettings(&settings);
195 settings.mChannels = 2;
197 settings.mFrequency = 44100;
198 settings.mResamplingMode = MODPLUG_RESAMPLE_FIR;
199 settings.mLoopCount = 0;
201 if (modplug->
noise_reduction) settings.mFlags |= MODPLUG_ENABLE_NOISE_REDUCTION;
216 ModPlug_SetSettings(&settings);
218 modplug->
f = ModPlug_Load(modplug->
buf, sz);
227 st->
duration = ModPlug_GetLength(modplug->
f);
256 dst += y*linesize + x*3;
257 for (i = 0; s[
i]; i++, dst += 3) {
264 #define PRINT_INFO(line, name, idvalue) do { \ 265 snprintf(intbuf, sizeof(intbuf), "%.0f", var_values[idvalue]); \ 266 write_text(pkt->data, name ":", modplug->linesize, 0+1, line+1); \ 267 write_text(pkt->data, intbuf, modplug->linesize, 10+1, line+1); \ 280 var_values[
VAR_W ] = modplug->
w;
281 var_values[
VAR_H ] = modplug->
h;
283 var_values[
VAR_SPEED ] = ModPlug_GetCurrentSpeed (modplug->
f);
284 var_values[
VAR_TEMPO ] = ModPlug_GetCurrentTempo (modplug->
f);
285 var_values[
VAR_ORDER ] = ModPlug_GetCurrentOrder (modplug->
f);
286 var_values[
VAR_PATTERN] = ModPlug_GetCurrentPattern(modplug->
f);
287 var_values[
VAR_ROW ] = ModPlug_GetCurrentRow (modplug->
f);
306 for (y = 0; y < modplug->
h; y++) {
307 for (x = 0; x < modplug->
w; x++) {
309 var_values[
VAR_X] = x;
310 var_values[
VAR_Y] = y;
312 pkt->
data[y*modplug->
linesize + x*3 + 2] |= av_clip((
int)color, 0, 0
xf)<<4;
329 if (pkt->
size <= 0) {
338 ModPlug_Unload(modplug->
f);
346 ModPlug_Seek(modplug->
f, (
int)ts);
352 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";
373 .
name =
"libmodplug",
382 .priv_class = &modplug_class,
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define FF_MODPLUG_DEF_FILE_SIZE
int64_t avio_size(AVIOContext *s)
Get the filesize.
int h
video stream height in char (one char = 8x8px)
int linesize
line size in bytes
int fsize
constant frame size
static int modplug_read_packet(AVFormatContext *s, AVPacket *pkt)
#define AV_LOG_WARNING
Something somehow does not look correct.
#define LIBAVUTIL_VERSION_INT
static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp, int flags)
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
const char * av_default_item_name(void *ptr)
Return the context name.
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.
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
AVInputFormat ff_libmodplug_demuxer
static const char *const var_names[]
static const uint32_t color[16+AV_CLASS_CATEGORY_NB]
int packet_count
total number of audio packets
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
#define AVERROR_EOF
End of file.
static av_cold int read_close(AVFormatContext *ctx)
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.
static const AVOption options[]
int video_stream
1 if the user want a video stream, otherwise 0
#define SET_OPT_IF_REQUESTED(libopt, opt, flag)
static int modplug_load_metadata(AVFormatContext *s)
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
int print_textinfo
bool flag for printing speed, tempo, order, ...
AVDictionary * metadata
Metadata that applies to the whole file.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
enum AVMediaType codec_type
General type of the encoded data.
int flags
A combination of AV_PKT_FLAG values.
int buf_size
Size of buf except extra allocated bytes.
char * av_asprintf(const char *fmt,...)
static const AVClass modplug_class
uint8_t * buf
input file content
#define FF_MODPLUG_MAX_FILE_SIZE
AVExpr * expr
parsed color eval expression
#define AV_DICT_DONT_STRDUP_VAL
Take ownership of a value that's been allocated with av_malloc() or another memory allocation functio...
char * color_eval
color eval user input expression
static int modplug_read_header(AVFormatContext *s)
static const char modplug_extensions[]
static int read_header(FFV1Context *f)
int video_switch
1 if current packet is video, otherwise 0
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
static void write_text(uint8_t *dst, const char *s, int linesize, int x, int y)
AVIOContext * pb
I/O context.
int max_size
max file size to allocate
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Describe the class of an AVClass context structure.
This structure contains the data a format has to probe a file.
int w
video stream width in char (one char = 8x8px)
#define flags(name, subs,...)
#define PRINT_INFO(line, name, idvalue)
int64_t duration
Decoding: duration of the stream, in stream time base.
int sample_rate
Audio only.
static int modplug_probe(const AVProbeData *p)
double ts_per_packet
used to define the pts/dts using packet_count;
#define xf(width, name, var, range_min, range_max, subs,...)
double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
Evaluate a previously parsed expression.
void * priv_data
Format private data.
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
static int modplug_read_close(AVFormatContext *s)
AVCodecParameters * codecpar
Codec parameters associated with this stream.
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
#define ADD_META_MULTIPLE_ENTRIES(entry_name, fname)
This structure stores compressed data.
static int modplug_read_seek(AVFormatContext *s, int stream_idx, int64_t ts, int flags)
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
simple arithmetic expression evaluator