e96c7c86b6
ff_clock_init expects a parameter with a pointer where it stores the address of the newly allocated ff_clock, but ff_demuxer_reset does not provide this parameter. That somehow writes the pointer to the ff_clock into the packet->base->buf field on the stack of the ff_demuxer_reset function. This later causes a segmentation fault when the packet is freed. Closes jp9000/obs-studio#448
66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
/*
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* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#pragma once
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#define AV_SYNC_THRESHOLD 0.01
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#define AV_NOSYNC_THRESHOLD 10.0
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#include <stdbool.h>
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#include <stdint.h>
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#include <pthread.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum ff_av_sync_type {
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AV_SYNC_AUDIO_MASTER,
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AV_SYNC_VIDEO_MASTER,
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AV_SYNC_EXTERNAL_MASTER,
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};
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typedef double (*ff_sync_clock)(void *opaque);
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struct ff_clock {
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ff_sync_clock sync_clock;
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enum ff_av_sync_type sync_type;
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uint64_t start_time;
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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volatile long retain;
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bool started;
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void *opaque;
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};
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typedef struct ff_clock ff_clock_t;
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struct ff_clock * ff_clock_init(void);
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double ff_get_sync_clock(struct ff_clock *clock);
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struct ff_clock *ff_clock_retain(struct ff_clock *clock);
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struct ff_clock *ff_clock_move(struct ff_clock **clock);
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void ff_clock_release(struct ff_clock **clock);
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int64_t ff_clock_start_time(struct ff_clock *clock);
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bool ff_clock_start(struct ff_clock *clock, enum ff_av_sync_type sync_type,
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const bool *abort);
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#ifdef __cplusplus
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}
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#endif
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