2 * Copyright (c) 2013 The WebM project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
11 #include "./vpxstats.h"
17 #include "./tools_common.h"
19 int stats_open_file(stats_io_t *stats, const char *fpf, int pass) {
24 stats->file = fopen(fpf, "wb");
26 stats->buf.buf = NULL;
27 res = (stats->file != NULL);
31 stats->file = fopen(fpf, "rb");
33 if (stats->file == NULL)
34 fatal("First-pass stats file does not exist!");
36 if (fseek(stats->file, 0, SEEK_END))
37 fatal("First-pass stats file must be seekable!");
39 stats->buf.sz = stats->buf_alloc_sz = ftell(stats->file);
42 stats->buf.buf = malloc(stats->buf_alloc_sz);
45 fatal("Failed to allocate first-pass stats buffer (%lu bytes)",
46 (unsigned int)stats->buf_alloc_sz);
48 nbytes = fread(stats->buf.buf, 1, stats->buf.sz, stats->file);
49 res = (nbytes == stats->buf.sz);
55 int stats_open_mem(stats_io_t *stats, int pass) {
61 stats->buf_alloc_sz = 64 * 1024;
62 stats->buf.buf = malloc(stats->buf_alloc_sz);
65 stats->buf_ptr = stats->buf.buf;
66 res = (stats->buf.buf != NULL);
70 void stats_close(stats_io_t *stats, int last_pass) {
72 if (stats->pass == last_pass) {
79 if (stats->pass == last_pass)
84 void stats_write(stats_io_t *stats, const void *pkt, size_t len) {
86 (void) fwrite(pkt, 1, len, stats->file);
88 if (stats->buf.sz + len > stats->buf_alloc_sz) {
89 size_t new_sz = stats->buf_alloc_sz + 64 * 1024;
90 char *new_ptr = realloc(stats->buf.buf, new_sz);
93 stats->buf_ptr = new_ptr + (stats->buf_ptr - (char *)stats->buf.buf);
94 stats->buf.buf = new_ptr;
95 stats->buf_alloc_sz = new_sz;
97 fatal("Failed to realloc firstpass stats buffer.");
101 memcpy(stats->buf_ptr, pkt, len);
102 stats->buf.sz += len;
103 stats->buf_ptr += len;
107 vpx_fixed_buf_t stats_get(stats_io_t *stats) {