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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /media/libvpx/libvpx/vpx_dsp/bitwriter.c | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'media/libvpx/libvpx/vpx_dsp/bitwriter.c')
-rw-r--r-- | media/libvpx/libvpx/vpx_dsp/bitwriter.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_dsp/bitwriter.c b/media/libvpx/libvpx/vpx_dsp/bitwriter.c new file mode 100644 index 0000000000..5b41aa54dd --- /dev/null +++ b/media/libvpx/libvpx/vpx_dsp/bitwriter.c @@ -0,0 +1,42 @@ +/* + * Copyright (c) 2010 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 <assert.h> + +#include "./bitwriter.h" + +#if CONFIG_BITSTREAM_DEBUG +#include "vpx_util/vpx_debug_util.h" +#endif + +void vpx_start_encode(vpx_writer *br, uint8_t *source) { + br->lowvalue = 0; + br->range = 255; + br->count = -24; + br->buffer = source; + br->pos = 0; + vpx_write_bit(br, 0); +} + +void vpx_stop_encode(vpx_writer *br) { + int i; + +#if CONFIG_BITSTREAM_DEBUG + bitstream_queue_set_skip_write(1); +#endif + for (i = 0; i < 32; i++) vpx_write_bit(br, 0); + + // Ensure there's no ambigous collision with any index marker bytes + if ((br->buffer[br->pos - 1] & 0xe0) == 0xc0) br->buffer[br->pos++] = 0; + +#if CONFIG_BITSTREAM_DEBUG + bitstream_queue_set_skip_write(0); +#endif +} |