Function ogg_buffer_data

libavformat/oggenc.c:155–190

}

static int ogg_buffer_data(AVFormatContext *s, AVStream *st,
                           uint8_t *data, unsigned size, int64_t granule)
{
    OGGStreamContext *oggstream = st->priv_data;
    int total_segments = size / 255 + 1;
    uint8_t *p = data;
    int i, segments, len;

    for (i = 0; i < total_segments; ) {
        OGGPage *page = &oggstream->page;

        segments = FFMIN(total_segments - i, 255 - page->segments_count);

        if (i && !page->segments_count)
            page->flags |= 1; // continued packet

        memset(page->segments+page->segments_count, 255, segments - 1);
        page->segments_count += segments - 1;

        len = FFMIN(size, segments*255);
        page->segments[page->segments_count++] = len - (segments-1)*255;
        memcpy(page->data+page->size, p, len);
        p += len;
        size -= len;
        i += segments;
        page->size += len;

        if (i == total_segments)
            page->granule = granule;

        if (page->segments_count == 255) {
            ogg_buffer_page(s, oggstream);
        }
    }
    return 0;
}

static uint8_t *ogg_write_vorbiscomment(int offset, int bitexact,
                                        int *header_len, AVMetadata *m)