int is_first_frame;
AVFrame *last_frame;
int flags;
+ int image;
uint32_t palette[AVPALETTE_COUNT]; ///< local reference palette for !pal8
int palette_loaded;
int transparent_index;
outbuf_ptr = pkt->data;
end = pkt->data + pkt->size;
+ if (s->image)
+ s->is_first_frame = 1;
+
if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
palette = (uint32_t*)pict->data[1];
gif_image_write_image(avctx, &outbuf_ptr, end, palette,
pict->data[0], pict->linesize[0], pkt);
- if (!s->last_frame) {
+ if (!s->last_frame && !s->image) {
s->last_frame = av_frame_alloc();
if (!s->last_frame)
return AVERROR(ENOMEM);
}
- av_frame_unref(s->last_frame);
- ret = av_frame_ref(s->last_frame, (AVFrame*)pict);
- if (ret < 0)
- return ret;
+ if (!s->image) {
+ av_frame_unref(s->last_frame);
+ ret = av_frame_ref(s->last_frame, (AVFrame*)pict);
+ if (ret < 0)
+ return ret;
+ }
pkt->size = outbuf_ptr - pkt->data;
- pkt->flags |= AV_PKT_FLAG_KEY;
+ if (s->is_first_frame)
+ pkt->flags |= AV_PKT_FLAG_KEY;
*got_packet = 1;
return 0;
{ "gifflags", "set GIF flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = GF_OFFSETTING|GF_TRANSDIFF}, 0, INT_MAX, FLAGS, "flags" },
{ "offsetting", "enable picture offsetting", 0, AV_OPT_TYPE_CONST, {.i64=GF_OFFSETTING}, INT_MIN, INT_MAX, FLAGS, "flags" },
{ "transdiff", "enable transparency detection between frames", 0, AV_OPT_TYPE_CONST, {.i64=GF_TRANSDIFF}, INT_MIN, INT_MAX, FLAGS, "flags" },
+ { "gifimage", "enable encoding only images per frame", OFFSET(image), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS, "flags" },
{ NULL }
};