*/
#include "avformat.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
/* The GIF format uses reversed order for bitstreams... */
/* at least they don't use PDP_ENDIAN :) */
}
typedef struct {
+ AVClass *class; /** Class for private options. */
int64_t time, file_time;
uint8_t buffer[100]; /* data chunks */
+ int loop;
} GIFContext;
static int gif_write_header(AVFormatContext *s)
GIFContext *gif = s->priv_data;
AVIOContext *pb = s->pb;
AVCodecContext *enc, *video_enc;
- int i, width, height, loop_count /*, rate*/;
+ int i, width, height /*, rate*/;
/* XXX: do we reject audio streams or just ignore them ?
if(s->nb_streams > 1)
} else {
width = video_enc->width;
height = video_enc->height;
- loop_count = s->loop_output;
// rate = video_enc->time_base.den;
}
return AVERROR(EIO);
}
- gif_image_write_header(pb, width, height, loop_count, NULL);
+#if FF_API_LOOP_OUTPUT
+ if (s->loop_output)
+ gif->loop = s->loop_output;
+#endif
+
+ gif_image_write_header(pb, width, height, gif->loop, NULL);
avio_flush(s->pb);
return 0;
return 0;
}
+#define OFFSET(x) offsetof(GIFContext, x)
+#define ENC AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption options[] = {
+ { "loop", "Number of times to loop the output.", OFFSET(loop), FF_OPT_TYPE_INT, {0}, 0, 65535, ENC },
+ { NULL },
+};
+
+static const AVClass gif_muxer_class = {
+ .class_name = "GIF muxer",
+ .item_name = av_default_item_name,
+ .version = LIBAVUTIL_VERSION_INT,
+ .option = options,
+};
+
AVOutputFormat ff_gif_muxer = {
- "gif",
- NULL_IF_CONFIG_SMALL("GIF Animation"),
- "image/gif",
- "gif",
- sizeof(GIFContext),
- CODEC_ID_NONE,
- CODEC_ID_RAWVIDEO,
- gif_write_header,
- gif_write_packet,
- gif_write_trailer,
+ .name = "gif",
+ .long_name = NULL_IF_CONFIG_SMALL("GIF Animation"),
+ .mime_type = "image/gif",
+ .extensions = "gif",
+ .priv_data_size = sizeof(GIFContext),
+ .audio_codec = CODEC_ID_NONE,
+ .video_codec = CODEC_ID_RAWVIDEO,
+ .write_header = gif_write_header,
+ .write_packet = gif_write_packet,
+ .write_trailer = gif_write_trailer,
+ .priv_class = &gif_muxer_class,
};