25 #include "libavutil/avstring.h"
26 #include "libavutil/eval.h"
27 #include "libavutil/opt.h"
42 #define OFFSET(x) offsetof(GMEContext, x)
43 #define A AV_OPT_FLAG_AUDIO_PARAM
44 #define D AV_OPT_FLAG_DECODING_PARAM
46 {
"track_index",
"set track that should be played",
OFFSET(track_index),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX,
A|
D},
48 {
"max_size",
"set max file size supported (in bytes)",
OFFSET(max_size),
AV_OPT_TYPE_INT64, {.i64 = 50 * 1024 * 1024}, 0, SIZE_MAX,
A|
D},
54 if (value && value[0])
61 gme_info_t *info = gme->
info;
68 add_meta(s,
"copyright", info->copyright);
69 add_meta(s,
"comment", info->comment);
78 #define AUDIO_PKT_SIZE 512
104 "value %"PRIi64
", consider increasing the max_size option\n",
159 gme_free_info(gme->
info);
175 if (gme_identify_header(p->
buf)[0]) {
200 .priv_class = &class_gme,
#define AVERROR_STREAM_NOT_FOUND
#define AVERROR_BUFFER_TOO_SMALL
#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)
AVCodecContext * codec
Codec context associated with this stream.
void av_log(void *avcl, int level, const char *fmt,...) av_printf_format(3
Send the specified message to the log if the level is less than or equal to the current av_log_level...
static int read_packet_gme(AVFormatContext *s, AVPacket *pkt)
static int probe_gme(AVProbeData *p)
static int read_header_gme(AVFormatContext *s)
void av_freep(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
const char * av_default_item_name(void *ctx)
Return the context name.
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
static int load_metadata(AVFormatContext *s)
static av_cold int read_close(AVFormatContext *ctx)
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
const OptionDef options[]
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
void * priv_data
Format private data.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
static void add_meta(AVFormatContext *s, const char *name, const char *value)
int buf_size
Size of buf except extra allocated bytes.
void * av_malloc(size_t size) av_malloc_attrib 1(1)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
gme_info_t * info
selected track
static int read_header(FFV1Context *f)
enum AVMediaType codec_type
int sample_rate
samples per second
AVIOContext * pb
I/O context.
static int read_packet(AVFormatContext *ctx, AVPacket *pkt)
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.
static const AVClass class_gme
int64_t duration
Decoding: duration of the stream, in stream time base.
AVInputFormat ff_libgme_demuxer
#define AVERROR_INVALIDDATA
int channels
number of audio channels
static int read_seek_gme(AVFormatContext *s, int stream_idx, int64_t ts, int flags)
This structure stores compressed data.
static int read_close_gme(AVFormatContext *s)