зеркало из https://github.com/mozilla/gecko-dev.git
107 строки
2.8 KiB
C
107 строки
2.8 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include "./aomstats.h"
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#include <math.h>
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#include <stdlib.h>
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#include <string.h>
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#include "./tools_common.h"
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int stats_open_file(stats_io_t *stats, const char *fpf, int pass) {
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int res;
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stats->pass = pass;
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if (pass == 0) {
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stats->file = fopen(fpf, "wb");
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stats->buf.sz = 0;
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stats->buf.buf = NULL;
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res = (stats->file != NULL);
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} else {
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size_t nbytes;
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stats->file = fopen(fpf, "rb");
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if (stats->file == NULL) fatal("First-pass stats file does not exist!");
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if (fseek(stats->file, 0, SEEK_END))
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fatal("First-pass stats file must be seekable!");
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stats->buf.sz = stats->buf_alloc_sz = ftell(stats->file);
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rewind(stats->file);
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stats->buf.buf = malloc(stats->buf_alloc_sz);
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if (!stats->buf.buf)
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fatal("Failed to allocate first-pass stats buffer (%lu bytes)",
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(unsigned int)stats->buf_alloc_sz);
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nbytes = fread(stats->buf.buf, 1, stats->buf.sz, stats->file);
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res = (nbytes == stats->buf.sz);
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}
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return res;
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}
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int stats_open_mem(stats_io_t *stats, int pass) {
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int res;
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stats->pass = pass;
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if (!pass) {
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stats->buf.sz = 0;
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stats->buf_alloc_sz = 64 * 1024;
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stats->buf.buf = malloc(stats->buf_alloc_sz);
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}
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stats->buf_ptr = stats->buf.buf;
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res = (stats->buf.buf != NULL);
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return res;
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}
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void stats_close(stats_io_t *stats, int last_pass) {
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if (stats->file) {
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if (stats->pass == last_pass) {
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free(stats->buf.buf);
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}
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fclose(stats->file);
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stats->file = NULL;
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} else {
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if (stats->pass == last_pass) free(stats->buf.buf);
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}
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}
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void stats_write(stats_io_t *stats, const void *pkt, size_t len) {
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if (stats->file) {
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(void)fwrite(pkt, 1, len, stats->file);
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} else {
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if (stats->buf.sz + len > stats->buf_alloc_sz) {
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size_t new_sz = stats->buf_alloc_sz + 64 * 1024;
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char *new_ptr = realloc(stats->buf.buf, new_sz);
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if (new_ptr) {
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stats->buf_ptr = new_ptr + (stats->buf_ptr - (char *)stats->buf.buf);
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stats->buf.buf = new_ptr;
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stats->buf_alloc_sz = new_sz;
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} else {
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fatal("Failed to realloc firstpass stats buffer.");
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}
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}
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memcpy(stats->buf_ptr, pkt, len);
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stats->buf.sz += len;
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stats->buf_ptr += len;
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}
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}
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aom_fixed_buf_t stats_get(stats_io_t *stats) { return stats->buf; }
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