media/libvpx/libvpx/vpxstats.c
author Johann <johannkoenig@google.com>
Mon, 16 Jan 2017 11:51:27 -0800
changeset 376885 70a5310085fa0c77bfcf88c4180c3e3af438a44d
parent 376407 ddb6c3191d11308531624d0fd4049792b16d730c
child 377112 58764883978d7959d480b9d2722c16f40f63bf96
permissions -rw-r--r--
Bug 1223692: Update libvpx to v1.6.0. r=rillian This includes the following patches: <patch file> <upstream review commit> <upstream hash> 1237848-check-lookahead-ctx.patch https://chromium-review.googlesource.com/324510 4f780e94a1fa54f22256e0f4d42a77c340a38fa1 block_error_fp.patch https://chromium-review.googlesource.com/282611 ff8505a54d0b3dda220f5c0695519c353c82b933 cast-char-to-uint-before-shift.patch https://chromium-review.googlesource.com/345470 2240d83d7882ce2d5d0826b9ce33b86321d7a724 clamp_abs_lvl_seg.patch https://chromium-review.googlesource.com/315754 2e693eb80e705ea68e23eed19616d22b4778b45a clamp-abs-QIndex.patch https://chromium-review.googlesource.com/315802 ff3674a15e5b1a006546e1edc64c3e778eb34ab1 rename_duplicate_files.patch https://chromium-review.googlesource.com/281967 6a82f0d7fb9ee908c389e8d55444bbaed3d54e9c https://chromium-review.googlesource.com/317880 d36659cec7fab96cedc67db4d511ed7135637d0e vp9_filter_restore_aligment.patch https://chromium-review.googlesource.com/276889 33b3953c548a20c0aee705657df0440a740c28b7 vpx_once.patch https://chromium-review.googlesource.com/312467 2635573a7f2e4bbd259379acf91efb97d983359f MozReview-Commit-ID: R7qB6egl3Z

/*
 *  Copyright (c) 2013 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "./vpxstats.h"

#include <math.h>
#include <stdlib.h>
#include <string.h>

#include "./tools_common.h"

int stats_open_file(stats_io_t *stats, const char *fpf, int pass) {
  int res;
  stats->pass = pass;

  if (pass == 0) {
    stats->file = fopen(fpf, "wb");
    stats->buf.sz = 0;
    stats->buf.buf = NULL;
    res = (stats->file != NULL);
  } else {
    size_t nbytes;

    stats->file = fopen(fpf, "rb");

    if (stats->file == NULL)
      fatal("First-pass stats file does not exist!");

    if (fseek(stats->file, 0, SEEK_END))
      fatal("First-pass stats file must be seekable!");

    stats->buf.sz = stats->buf_alloc_sz = ftell(stats->file);
    rewind(stats->file);

    stats->buf.buf = malloc(stats->buf_alloc_sz);

    if (!stats->buf.buf)
      fatal("Failed to allocate first-pass stats buffer (%lu bytes)",
            (unsigned int)stats->buf_alloc_sz);

    nbytes = fread(stats->buf.buf, 1, stats->buf.sz, stats->file);
    res = (nbytes == stats->buf.sz);
  }

  return res;
}

int stats_open_mem(stats_io_t *stats, int pass) {
  int res;
  stats->pass = pass;

  if (!pass) {
    stats->buf.sz = 0;
    stats->buf_alloc_sz = 64 * 1024;
    stats->buf.buf = malloc(stats->buf_alloc_sz);
  }

  stats->buf_ptr = stats->buf.buf;
  res = (stats->buf.buf != NULL);
  return res;
}

void stats_close(stats_io_t *stats, int last_pass) {
  if (stats->file) {
    if (stats->pass == last_pass) {
      free(stats->buf.buf);
    }

    fclose(stats->file);
    stats->file = NULL;
  } else {
    if (stats->pass == last_pass)
      free(stats->buf.buf);
  }
}

void stats_write(stats_io_t *stats, const void *pkt, size_t len) {
  if (stats->file) {
    (void) fwrite(pkt, 1, len, stats->file);
  } else {
    if (stats->buf.sz + len > stats->buf_alloc_sz) {
      size_t  new_sz = stats->buf_alloc_sz + 64 * 1024;
      char   *new_ptr = realloc(stats->buf.buf, new_sz);

      if (new_ptr) {
        stats->buf_ptr = new_ptr + (stats->buf_ptr - (char *)stats->buf.buf);
        stats->buf.buf = new_ptr;
        stats->buf_alloc_sz = new_sz;
      } else {
        fatal("Failed to realloc firstpass stats buffer.");
      }
    }

    memcpy(stats->buf_ptr, pkt, len);
    stats->buf.sz += len;
    stats->buf_ptr += len;
  }
}

vpx_fixed_buf_t stats_get(stats_io_t *stats) {
  return stats->buf;
}