41 #define OFFSET(x) offsetof(GMEContext, x) 42 #define A AV_OPT_FLAG_AUDIO_PARAM 43 #define D AV_OPT_FLAG_DECODING_PARAM 53 if (value && value[0])
66 *duration = info->length;
71 add_meta(s,
"copyright", info->copyright);
72 add_meta(s,
"comment", info->comment);
82 #define AUDIO_PKT_SIZE 512 117 "value %"PRIi64
", consider increasing the max_size option\n",
184 if (gme_identify_header(p->
buf)[0]) {
209 .priv_class = &class_gme,
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
int64_t avio_size(AVIOContext *s)
Get the filesize.
#define AV_LOG_WARNING
Something somehow does not look correct.
#define LIBAVUTIL_VERSION_INT
static int load_metadata(AVFormatContext *s, int64_t *duration)
static const AVOption options[]
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.
static int read_packet_gme(AVFormatContext *s, AVPacket *pkt)
static int read_header_gme(AVFormatContext *s)
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
GLsizei GLboolean const GLfloat * value
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 avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
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.
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.
static void add_meta(AVFormatContext *s, const char *name, const char *value)
int buf_size
Size of buf except extra allocated bytes.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
#define AVERROR_BUFFER_TOO_SMALL
Buffer too small.
static int probe_gme(const AVProbeData *p)
static int read_header(FFV1Context *f)
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
AVIOContext * pb
I/O context.
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.
#define flags(name, subs,...)
static const AVClass class_gme
int64_t duration
Decoding: duration of the stream, in stream time base.
int sample_rate
Audio only.
AVInputFormat ff_libgme_demuxer
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
void * priv_data
Format private data.
#define AVERROR_STREAM_NOT_FOUND
Stream not found.
static int read_seek_gme(AVFormatContext *s, int stream_idx, int64_t ts, int flags)
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 AVERROR_EXTERNAL
Generic error in an external library.
This structure stores compressed data.
simple arithmetic expression evaluator
static int read_close_gme(AVFormatContext *s)