fifo.c - OpenGrok cross reference for /third_party/ffmpeg/libavutil/fifo.c

Lines Matching defs:nb_elems
38     size_t elem_size, nb_elems;
47 AVFifo *av_fifo_alloc2(size_t nb_elems, size_t elem_size,
56     if (nb_elems) {
57         buffer = av_realloc_array(NULL, nb_elems, elem_size);
67     f->nb_elems  = nb_elems;
90         return f->nb_elems - f->offset_r + f->offset_w;
96     return f->nb_elems - av_fifo_can_read(f);
103     if (inc > SIZE_MAX - f->nb_elems)
106     tmp = av_realloc_array(f->buffer, f->nb_elems + inc, f->elem_size);
115         memcpy(tmp + f->nb_elems * f->elem_size, tmp, copy * f->elem_size);
121             f->offset_w = copy == inc ? 0 : f->nb_elems + copy;
124     f->nb_elems += inc;
138     can_grow = f->auto_grow_limit > f->nb_elems ?
139                f->auto_grow_limit - f->nb_elems : 0;
149 static int fifo_write_common(AVFifo *f, const uint8_t *buf, size_t *nb_elems,
152     size_t to_write = *nb_elems;
163         size_t    len = FFMIN(f->nb_elems - offset_w, to_write);
175         if (offset_w >= f->nb_elems)
181     if (*nb_elems != to_write)
183     *nb_elems -= to_write;
188 int av_fifo_write(AVFifo *f, const void *buf, size_t nb_elems)
190     return fifo_write_common(f, buf, &nb_elems, NULL, NULL);
194                           void *opaque, size_t *nb_elems)
196     return fifo_write_common(f, NULL, nb_elems, read_cb, opaque);
199 static int fifo_peek_common(const AVFifo *f, uint8_t *buf, size_t *nb_elems,
202     size_t  to_read = *nb_elems;
208         *nb_elems = 0;
212     if (offset_r >= f->nb_elems - offset)
213         offset_r -= f->nb_elems - offset;
218         size_t    len = FFMIN(f->nb_elems - offset_r, to_read);
230         if (offset_r >= f->nb_elems)
235     *nb_elems -= to_read;
240 int av_fifo_read(AVFifo *f, void *buf, size_t nb_elems)
242     int ret = fifo_peek_common(f, buf, &nb_elems, 0, NULL, NULL);
243     av_fifo_drain2(f, nb_elems);
248                        void *opaque, size_t *nb_elems)
250     int ret = fifo_peek_common(f, NULL, nb_elems, 0, write_cb, opaque);
251     av_fifo_drain2(f, *nb_elems);
255 int av_fifo_peek(AVFifo *f, void *buf, size_t nb_elems, size_t offset)
257     return fifo_peek_common(f, buf, &nb_elems, offset, NULL, NULL);
261                        size_t *nb_elems, size_t offset)
263     return fifo_peek_common(f, NULL, nb_elems, offset, write_cb, opaque);
274     if (f->offset_r >= f->nb_elems - size)
275         f->offset_r -= f->nb_elems - size;