зеркало из https://github.com/mozilla/gecko-dev.git
78 строки
2.2 KiB
C
78 строки
2.2 KiB
C
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/*
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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 <stdlib.h>
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#include "./ivfenc.h"
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#include "./video_writer.h"
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#include "aom/aom_encoder.h"
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struct AvxVideoWriterStruct {
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AvxVideoInfo info;
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FILE *file;
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int frame_count;
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};
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static void write_header(FILE *file, const AvxVideoInfo *info,
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int frame_count) {
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struct aom_codec_enc_cfg cfg;
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cfg.g_w = info->frame_width;
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cfg.g_h = info->frame_height;
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cfg.g_timebase.num = info->time_base.numerator;
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cfg.g_timebase.den = info->time_base.denominator;
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ivf_write_file_header(file, &cfg, info->codec_fourcc, frame_count);
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}
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AvxVideoWriter *aom_video_writer_open(const char *filename,
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AvxContainer container,
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const AvxVideoInfo *info) {
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if (container == kContainerIVF) {
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AvxVideoWriter *writer = NULL;
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FILE *const file = fopen(filename, "wb");
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if (!file) return NULL;
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writer = malloc(sizeof(*writer));
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if (!writer) return NULL;
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writer->frame_count = 0;
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writer->info = *info;
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writer->file = file;
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write_header(writer->file, info, 0);
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return writer;
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}
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return NULL;
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}
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void aom_video_writer_close(AvxVideoWriter *writer) {
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if (writer) {
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// Rewriting frame header with real frame count
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rewind(writer->file);
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write_header(writer->file, &writer->info, writer->frame_count);
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fclose(writer->file);
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free(writer);
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}
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}
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int aom_video_writer_write_frame(AvxVideoWriter *writer, const uint8_t *buffer,
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size_t size, int64_t pts) {
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ivf_write_frame_header(writer->file, pts, size);
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if (fwrite(buffer, 1, size, writer->file) != size) return 0;
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++writer->frame_count;
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return 1;
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}
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