9  * License as published by the Free Software Foundation; either
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
38     PNMParseContext *pnmpc = s->priv_data;  in pnm_parse()
39     ParseContext *pc = &pnmpc->pc;  in pnm_parse()
42     int skip = 0;  in pnm_parse()  local
44     if (pc->overread > 0) {  in pnm_parse()
45         memmove(pc->buffer + pc->index, pc->buffer + pc->overread_index, pc->overread);  in pnm_parse()
46         pc->index          += pc->overread;  in pnm_parse()
47         pc->overread_index += pc->overread;  in pnm_parse()
48         pc->overread = 0;  in pnm_parse()
51     if (pnmpc->remaining_bytes) {  in pnm_parse()
52         int inc = FFMIN(pnmpc->remaining_bytes, buf_size);  in pnm_parse()
53         skip += inc;  in pnm_parse()
54         pnmpc->remaining_bytes -= inc;  in pnm_parse()
56         if (!pnmpc->remaining_bytes)  in pnm_parse()
57             next = skip;  in pnm_parse()
62     if (pc->index) {  in pnm_parse()
64         pnmctx.bytestream       = pc->buffer;  in pnm_parse()
65         pnmctx.bytestream_end   = pc->buffer + pc->index;  in pnm_parse()
68         pnmctx.bytestream       = (uint8_t *) buf + skip; /* casts avoid warnings */  in pnm_parse()
69         pnmctx.bytestream_end   = (uint8_t *) buf + buf_size - skip;  in pnm_parse()
73             if (pc->index) {  in pnm_parse()
74                 pc->index = 0;  in pnm_parse()
75                 pnmpc->ascii_scan = 0;  in pnm_parse()
77                 unsigned step = FFMAX(1, pnmctx.bytestream - pnmctx.bytestream_start);  in pnm_parse()
79                 skip += step;  in pnm_parse()
88         if (pc->index) {  in pnm_parse()
89             av_assert0(pnmpc->ascii_scan <= end - bs);  in pnm_parse()
90             bs += pnmpc->ascii_scan;  in pnm_parse()
98                 uint8_t *match = memchr(bs, '\n', end-bs);  in pnm_parse()
104                 next = bs - pnmctx.bytestream_start + skip - 1;  in pnm_parse()
105                 pnmpc->ascii_scan = 0;  in pnm_parse()
110             pnmpc->ascii_scan = sync - pnmctx.bytestream + skip;  in pnm_parse()
112         int ret = av_image_get_buffer_size(avctx->pix_fmt, avctx->width, avctx->height, 1);  in pnm_parse()
113         next = pnmctx.bytestream - pnmctx.bytestream_start + skip;  in pnm_parse()
119     if (next != END_NOT_FOUND && pnmctx.bytestream_start != buf + skip)  in pnm_parse()
120         next -= pc->index;  in pnm_parse()
122         pnmpc->remaining_bytes = next - buf_size;  in pnm_parse()