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deps/libff: Remove unused code and header files

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derrod 2023-07-30 01:51:19 +02:00 committed by Lain
parent 91f00eac87
commit 5569139c43
21 changed files with 0 additions and 2640 deletions
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205
deps/libff/libff/ff-audio-decoder.c vendored
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@ -1,205 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ff-callbacks.h"
#include "ff-circular-queue.h"
#include "ff-clock.h"
#include "ff-decoder.h"
#include "ff-frame.h"
#include "ff-packet-queue.h"
#include "ff-timer.h"
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavutil/time.h>
#include <assert.h>
#include "ff-compat.h"
static inline void shrink_packet(struct ff_packet *packet, int packet_length)
{
if (packet_length <= packet->base.size) {
int remaining = packet->base.size - packet_length;
memmove(packet->base.data, &packet->base.data[packet_length],
remaining);
av_shrink_packet(&packet->base, remaining);
}
}
static bool handle_reset_packet(struct ff_decoder *decoder,
struct ff_packet *packet)
{
if (decoder->clock != NULL)
ff_clock_release(&decoder->clock);
decoder->clock = packet->clock;
av_free_packet(&packet->base);
return true;
}
static void drop_late_packets(struct ff_decoder *decoder,
struct ff_packet *packet)
{
int64_t start_time = ff_clock_start_time(decoder->clock);
if (start_time != AV_NOPTS_VALUE) {
if (ff_decoder_set_frame_drop_state(decoder, start_time,
packet->base.pts))
shrink_packet(packet, packet->base.size);
}
}
static int decode_frame(struct ff_decoder *decoder, struct ff_packet *packet,
AVFrame *frame, bool *frame_complete)
{
int packet_length;
int ret;
while (true) {
if (decoder->eof)
ret = packet_queue_get(&decoder->packet_queue, packet,
0);
else
ret = packet_queue_get(&decoder->packet_queue, packet,
1);
if (ret == FF_PACKET_EMPTY) {
return 0;
} else if (ret == FF_PACKET_FAIL) {
return -1;
}
if (packet->base.data ==
decoder->packet_queue.flush_packet.base.data) {
avcodec_flush_buffers(decoder->codec);
continue;
}
// Packet has a new clock (reset packet)
if (packet->clock != NULL)
if (!handle_reset_packet(decoder, packet))
return -1;
while (packet->base.size > 0) {
int complete;
drop_late_packets(decoder, packet);
packet_length = avcodec_decode_audio4(decoder->codec,
frame, &complete,
&packet->base);
if (packet_length < 0)
break;
shrink_packet(packet, packet_length);
if (complete == 0 || frame->nb_samples <= 0)
continue;
*frame_complete = complete != 0;
return frame->nb_samples *
av_get_bytes_per_sample(frame->format);
}
if (packet->base.data != NULL)
av_packet_unref(&packet->base);
}
}
static bool queue_frame(struct ff_decoder *decoder, AVFrame *frame,
double best_effort_pts)
{
struct ff_frame *queue_frame;
bool call_initialize;
ff_circular_queue_wait_write(&decoder->frame_queue);
if (decoder->abort) {
return false;
}
queue_frame = ff_circular_queue_peek_write(&decoder->frame_queue);
AVCodecContext *codec = decoder->codec;
call_initialize =
(queue_frame->frame == NULL ||
queue_frame->frame->channels != codec->channels ||
queue_frame->frame->sample_rate != codec->sample_rate ||
queue_frame->frame->format != codec->sample_fmt);
if (queue_frame->frame != NULL) {
//FIXME: this shouldn't happen any more!
av_frame_free(&queue_frame->frame);
}
queue_frame->frame = av_frame_clone(frame);
queue_frame->clock = ff_clock_retain(decoder->clock);
if (call_initialize)
ff_callbacks_frame_initialize(queue_frame, decoder->callbacks);
queue_frame->pts = best_effort_pts;
ff_circular_queue_advance_write(&decoder->frame_queue, queue_frame);
return true;
}
void *ff_audio_decoder_thread(void *opaque_audio_decoder)
{
struct ff_decoder *decoder = opaque_audio_decoder;
struct ff_packet packet = {0};
bool frame_complete;
AVFrame *frame = av_frame_alloc();
int ret;
while (!decoder->abort) {
ret = decode_frame(decoder, &packet, frame, &frame_complete);
if (ret == 0) {
break;
} else if (ret < 0) {
av_free_packet(&packet.base);
continue;
}
// Did we get a audio frame?
if (frame_complete) {
// If we don't have a good PTS, try to guess based
// on last received PTS provided plus prediction
// This function returns a pts scaled to stream
// time base
double best_effort_pts =
ff_decoder_get_best_effort_pts(decoder, frame);
queue_frame(decoder, frame, best_effort_pts);
av_frame_unref(frame);
}
av_free_packet(&packet.base);
}
if (decoder->clock != NULL)
ff_clock_release(&decoder->clock);
av_frame_free(&frame);
decoder->finished = true;
return NULL;
}

60
deps/libff/libff/ff-callbacks.c vendored
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@ -1,60 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ff-callbacks.h"
bool ff_callbacks_frame(struct ff_callbacks *callbacks, struct ff_frame *frame)
{
if (callbacks->frame == NULL)
return true;
return callbacks->frame(frame, callbacks->opaque);
}
bool ff_callbacks_format(struct ff_callbacks *callbacks,
AVCodecContext *codec_context)
{
if (callbacks->format == NULL)
return true;
return callbacks->format(codec_context, callbacks->opaque);
}
bool ff_callbacks_initialize(struct ff_callbacks *callbacks)
{
if (callbacks->initialize == NULL)
return true;
return callbacks->initialize(callbacks->opaque);
}
bool ff_callbacks_frame_initialize(struct ff_frame *frame,
struct ff_callbacks *callbacks)
{
if (callbacks->frame_initialize == NULL)
return true;
return callbacks->frame_initialize(frame, callbacks->opaque);
}
bool ff_callbacks_frame_free(struct ff_frame *frame,
struct ff_callbacks *callbacks)
{
if (callbacks->frame_free == NULL)
return true;
return callbacks->frame_free(frame, callbacks->opaque);
}

52
deps/libff/libff/ff-callbacks.h vendored
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@ -1,52 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once
#include "ff-frame.h"
#include <libavcodec/avcodec.h>
#include <stdbool.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef bool (*ff_callback_frame)(struct ff_frame *frame, void *opaque);
typedef bool (*ff_callback_format)(AVCodecContext *codec_context, void *opaque);
typedef bool (*ff_callback_initialize)(void *opaque);
struct ff_callbacks {
ff_callback_frame frame;
ff_callback_format format;
ff_callback_initialize initialize;
ff_callback_frame frame_initialize;
ff_callback_frame frame_free;
void *opaque;
};
bool ff_callbacks_frame(struct ff_callbacks *callbacks, struct ff_frame *frame);
bool ff_callbacks_format(struct ff_callbacks *callbacks,
AVCodecContext *codec_context);
bool ff_callbacks_initialize(struct ff_callbacks *callbacks);
bool ff_callbacks_frame_initialize(struct ff_frame *frame,
struct ff_callbacks *callbacks);
bool ff_callbacks_frame_free(struct ff_frame *frame,
struct ff_callbacks *callbacks);
#ifdef __cplusplus
}
#endif

137
deps/libff/libff/ff-circular-queue.c vendored
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@ -1,137 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ff-circular-queue.h"
static void *queue_fetch_or_alloc(struct ff_circular_queue *cq, int index)
{
if (cq->slots[index] == NULL)
cq->slots[index] = av_mallocz(cq->item_size);
return cq->slots[index];
}
static void queue_lock(struct ff_circular_queue *cq)
{
pthread_mutex_lock(&cq->mutex);
}
static void queue_unlock(struct ff_circular_queue *cq)
{
pthread_mutex_unlock(&cq->mutex);
}
static void queue_signal(struct ff_circular_queue *cq)
{
pthread_cond_signal(&cq->cond);
}
static void queue_wait(struct ff_circular_queue *cq)
{
pthread_cond_wait(&cq->cond, &cq->mutex);
}
bool ff_circular_queue_init(struct ff_circular_queue *cq, int item_size,
int capacity)
{
memset(cq, 0, sizeof(struct ff_circular_queue));
cq->item_size = item_size;
cq->capacity = capacity;
cq->abort = false;
cq->slots = av_mallocz(capacity * sizeof(void *));
if (cq->slots == NULL)
goto fail;
cq->size = 0;
cq->write_index = 0;
cq->read_index = 0;
if (pthread_mutex_init(&cq->mutex, NULL) != 0)
goto fail1;
if (pthread_cond_init(&cq->cond, NULL) != 0)
goto fail2;
return true;
fail2:
pthread_mutex_destroy(&cq->mutex);
fail1:
av_free(cq->slots);
fail:
return false;
}
void ff_circular_queue_abort(struct ff_circular_queue *cq)
{
queue_lock(cq);
cq->abort = true;
queue_signal(cq);
queue_unlock(cq);
}
void ff_circular_queue_free(struct ff_circular_queue *cq)
{
ff_circular_queue_abort(cq);
if (cq->slots != NULL)
av_free(cq->slots);
pthread_mutex_destroy(&cq->mutex);
pthread_cond_destroy(&cq->cond);
}
void ff_circular_queue_wait_write(struct ff_circular_queue *cq)
{
queue_lock(cq);
while (cq->size >= cq->capacity && !cq->abort)
queue_wait(cq);
queue_unlock(cq);
}
void *ff_circular_queue_peek_write(struct ff_circular_queue *cq)
{
return queue_fetch_or_alloc(cq, cq->write_index);
}
void ff_circular_queue_advance_write(struct ff_circular_queue *cq, void *item)
{
cq->slots[cq->write_index] = item;
cq->write_index = (cq->write_index + 1) % cq->capacity;
queue_lock(cq);
++cq->size;
queue_unlock(cq);
}
void *ff_circular_queue_peek_read(struct ff_circular_queue *cq)
{
return queue_fetch_or_alloc(cq, cq->read_index);
}
void ff_circular_queue_advance_read(struct ff_circular_queue *cq)
{
cq->read_index = (cq->read_index + 1) % cq->capacity;
queue_lock(cq);
--cq->size;
queue_signal(cq);
queue_unlock(cq);
}

58
deps/libff/libff/ff-circular-queue.h vendored
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@ -1,58 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <pthread.h>
#include <libavutil/mem.h>
#include <stdbool.h>
struct ff_circular_queue {
pthread_mutex_t mutex;
pthread_cond_t cond;
void **slots;
int item_size;
int capacity;
int size;
int write_index;
int read_index;
bool abort;
};
typedef struct ff_circular_queue ff_circular_queue_t;
bool ff_circular_queue_init(struct ff_circular_queue *cq, int item_size,
int capacity);
void ff_circular_queue_abort(struct ff_circular_queue *cq);
void ff_circular_queue_free(struct ff_circular_queue *cq);
void ff_circular_queue_wait_write(struct ff_circular_queue *cq);
void *ff_circular_queue_peek_write(struct ff_circular_queue *cq);
void ff_circular_queue_advance_write(struct ff_circular_queue *cq, void *item);
void *ff_circular_queue_peek_read(struct ff_circular_queue *cq);
void ff_circular_queue_advance_read(struct ff_circular_queue *cq);
#ifdef __cplusplus
}
#endif

141
deps/libff/libff/ff-clock.c vendored
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@ -1,141 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ff-clock.h"
#include "ff-threading.h"
#include <libavutil/avutil.h>
#include <libavutil/time.h>
// Amount of microseconds between checks to see if a clock has started
#define CLOCK_START_CHECK_INTERVAL 100
double ff_get_sync_clock(struct ff_clock *clock)
{
return clock->sync_clock(clock->opaque);
}
int64_t ff_clock_start_time(struct ff_clock *clock)
{
int64_t start_time = AV_NOPTS_VALUE;
pthread_mutex_lock(&clock->mutex);
if (clock->started)
start_time = clock->start_time;
pthread_mutex_unlock(&clock->mutex);
return start_time;
}
bool ff_clock_start(struct ff_clock *clock, enum ff_av_sync_type sync_type,
const bool *abort)
{
bool release = false;
bool aborted = false;
if (clock->sync_type == sync_type && !clock->started) {
pthread_mutex_lock(&clock->mutex);
if (!clock->started) {
clock->start_time = av_gettime();
clock->started = true;
}
pthread_cond_signal(&clock->cond);
pthread_mutex_unlock(&clock->mutex);
} else {
while (!clock->started) {
pthread_mutex_lock(&clock->mutex);
int64_t current_time =
av_gettime() + CLOCK_START_CHECK_INTERVAL;
struct timespec sleep_time = {
.tv_sec = current_time / AV_TIME_BASE,
.tv_nsec =
(current_time % AV_TIME_BASE) * 1000};
pthread_cond_timedwait(&clock->cond, &clock->mutex,
&sleep_time);
aborted = *abort;
// There is no way anyone can signal us since we are
// the only reference
if (clock->retain == 1)
release = true;
pthread_mutex_unlock(&clock->mutex);
if (aborted || release) {
av_log(NULL, AV_LOG_ERROR,
"could not start "
"slave clock as master clock "
"was never started before "
"being released or aborted");
break;
}
}
}
if (release)
ff_clock_release(&clock);
return !release && !aborted;
}
struct ff_clock *ff_clock_init(void)
{
struct ff_clock *clock = av_mallocz(sizeof(struct ff_clock));
if (clock == NULL)
return NULL;
if (pthread_mutex_init(&clock->mutex, NULL) != 0)
goto fail;
if (pthread_cond_init(&clock->cond, NULL) != 0)
goto fail1;
return clock;
fail1:
pthread_mutex_destroy(&clock->mutex);
fail:
av_free(clock);
return NULL;
}
struct ff_clock *ff_clock_retain(struct ff_clock *clock)
{
ff_atomic_inc_long(&clock->retain);
return clock;
}
struct ff_clock *ff_clock_move(struct ff_clock **clock)
{
struct ff_clock *retained_clock = ff_clock_retain(*clock);
ff_clock_release(clock);
return retained_clock;
}
void ff_clock_release(struct ff_clock **clock)
{
if (ff_atomic_dec_long(&(*clock)->retain) == 0) {
pthread_cond_destroy(&(*clock)->cond);
pthread_mutex_destroy(&(*clock)->mutex);
av_free(*clock);
}
*clock = NULL;
}

65
deps/libff/libff/ff-clock.h vendored
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@ -1,65 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once
#define AV_SYNC_THRESHOLD 0.01
#define AV_NOSYNC_THRESHOLD 10.0
#include <stdbool.h>
#include <stdint.h>
#include <pthread.h>
#ifdef __cplusplus
extern "C" {
#endif
enum ff_av_sync_type {
AV_SYNC_AUDIO_MASTER,
AV_SYNC_VIDEO_MASTER,
AV_SYNC_EXTERNAL_MASTER,
};
typedef double (*ff_sync_clock)(void *opaque);
struct ff_clock {
ff_sync_clock sync_clock;
enum ff_av_sync_type sync_type;
uint64_t start_time;
pthread_mutex_t mutex;
pthread_cond_t cond;
volatile long retain;
bool started;
void *opaque;
};
typedef struct ff_clock ff_clock_t;
struct ff_clock *ff_clock_init(void);
double ff_get_sync_clock(struct ff_clock *clock);
struct ff_clock *ff_clock_retain(struct ff_clock *clock);
struct ff_clock *ff_clock_move(struct ff_clock **clock);
void ff_clock_release(struct ff_clock **clock);
int64_t ff_clock_start_time(struct ff_clock *clock);
bool ff_clock_start(struct ff_clock *clock, enum ff_av_sync_type sync_type,
const bool *abort);
#ifdef __cplusplus
}
#endif

29
deps/libff/libff/ff-compat.h vendored
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@ -1,29 +0,0 @@
/*
* Copyright (c) 2023 Lain Bailey <lain@obsproject.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once
#if LIBAVCODEC_VERSION_MAJOR >= 57
#define av_free_packet av_packet_unref
static inline int av_dup_packet_2(AVPacket *pkt)
{
AVPacket tmp = *pkt;
int ret = av_packet_ref(pkt, &tmp);
av_packet_unref(&tmp);
return ret;
}
#define av_dup_packet av_dup_packet_2
#endif

387
deps/libff/libff/ff-decoder.c vendored
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@ -1,387 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ff-decoder.h"
#include <libavutil/time.h>
#include <assert.h>
typedef void *(*ff_decoder_thread_t)(void *opaque_decoder);
extern void *ff_audio_decoder_thread(void *opaque_audio_decoder);
extern void *ff_video_decoder_thread(void *opaque_video_decoder);
struct ff_decoder *ff_decoder_init(AVCodecContext *codec_context,
AVStream *stream,
unsigned int packet_queue_size,
unsigned int frame_queue_size)
{
bool success;
assert(codec_context != NULL);
assert(stream != NULL);
struct ff_decoder *decoder = av_mallocz(sizeof(struct ff_decoder));
if (decoder == NULL)
goto fail;
decoder->codec = codec_context;
decoder->codec->opaque = decoder;
decoder->stream = stream;
decoder->abort = false;
decoder->finished = false;
decoder->packet_queue_size = packet_queue_size;
if (!packet_queue_init(&decoder->packet_queue))
goto fail1;
decoder->timer_next_wake = (double)av_gettime() / 1000000.0;
decoder->previous_pts_diff = 40e-3;
decoder->current_pts_time = av_gettime();
decoder->start_pts = 0;
decoder->predicted_pts = 0;
decoder->first_frame = true;
success = ff_timer_init(&decoder->refresh_timer, ff_decoder_refresh,
decoder);
if (!success)
goto fail2;
success = ff_circular_queue_init(&decoder->frame_queue,
sizeof(struct ff_frame),
frame_queue_size);
if (!success)
goto fail3;
return decoder;
fail3:
ff_timer_free(&decoder->refresh_timer);
fail2:
packet_queue_free(&decoder->packet_queue);
fail1:
av_free(decoder);
fail:
return NULL;
}
bool ff_decoder_start(struct ff_decoder *decoder)
{
assert(decoder != NULL);
ff_decoder_thread_t decoder_thread;
if (decoder->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
decoder_thread = ff_audio_decoder_thread;
} else if (decoder->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
decoder_thread = ff_video_decoder_thread;
} else {
av_log(NULL, AV_LOG_ERROR, "no decoder found for type %d",
decoder->codec->codec_type);
return false;
}
ff_decoder_schedule_refresh(decoder, 40);
return (pthread_create(&decoder->decoder_thread, NULL, decoder_thread,
decoder) != 0);
}
void ff_decoder_free(struct ff_decoder *decoder)
{
void *decoder_thread_result;
int i;
assert(decoder != NULL);
decoder->abort = true;
ff_circular_queue_abort(&decoder->frame_queue);
packet_queue_abort(&decoder->packet_queue);
ff_timer_free(&decoder->refresh_timer);
pthread_join(decoder->decoder_thread, &decoder_thread_result);
for (i = 0; i < decoder->frame_queue.capacity; i++) {
void *item = decoder->frame_queue.slots[i];
struct ff_frame *frame = (struct ff_frame *)item;
ff_callbacks_frame_free(frame, decoder->callbacks);
if (frame != NULL) {
if (frame->frame != NULL)
av_frame_unref(frame->frame);
if (frame->clock != NULL)
ff_clock_release(&frame->clock);
av_free(frame);
}
}
packet_queue_free(&decoder->packet_queue);
ff_circular_queue_free(&decoder->frame_queue);
avcodec_close(decoder->codec);
av_free(decoder);
}
void ff_decoder_schedule_refresh(struct ff_decoder *decoder, int delay)
{
ff_timer_schedule(&decoder->refresh_timer, 1000 * delay);
}
double ff_decoder_clock(void *opaque)
{
struct ff_decoder *decoder = opaque;
double delta = (av_gettime() - decoder->current_pts_time) / 1000000.0;
return decoder->current_pts + delta;
}
static double get_sync_adjusted_pts_diff(struct ff_clock *clock, double pts,
double pts_diff)
{
double new_pts_diff = pts_diff;
double sync_time = ff_get_sync_clock(clock);
double diff = pts - sync_time;
double sync_threshold;
sync_threshold = (pts_diff > AV_SYNC_THRESHOLD) ? pts_diff
: AV_SYNC_THRESHOLD;
if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
if (diff <= -sync_threshold) {
new_pts_diff = 0;
} else if (diff >= sync_threshold) {
new_pts_diff = 2 * pts_diff;
}
}
return new_pts_diff;
}
void ff_decoder_refresh(void *opaque)
{
struct ff_decoder *decoder = (struct ff_decoder *)opaque;
struct ff_frame *frame;
if (decoder->stream) {
if (decoder->frame_queue.size == 0) {
if (!decoder->eof || !decoder->finished) {
// We expected a frame, but there were none
// available
// Schedule another call as soon as possible
ff_decoder_schedule_refresh(decoder, 1);
} else {
ff_callbacks_frame(decoder->callbacks, NULL);
decoder->refresh_timer.abort = true;
// no more refreshes, we are at the eof
av_log(NULL, AV_LOG_INFO,
"refresh timer stopping; eof");
return;
}
} else {
double pts_diff;
double delay_until_next_wake;
bool late_first_frame = false;
frame = ff_circular_queue_peek_read(
&decoder->frame_queue);
// Get frame clock and start it if needed
ff_clock_t *clock = ff_clock_move(&frame->clock);
if (!ff_clock_start(clock, decoder->natural_sync_clock,
&decoder->refresh_timer.abort)) {
ff_clock_release(&clock);
// Our clock was never started and deleted or
// aborted
if (decoder->refresh_timer.abort) {
av_log(NULL, AV_LOG_INFO,
"refresh timer aborted");
return;
}
// Drop this frame? The only way this can happen
// is if one stream finishes before another and
// the input is looping or canceled. Until we
// get another clock we will unable to continue
ff_decoder_schedule_refresh(decoder, 100);
// Drop this frame as we have no way of timing
// it
ff_circular_queue_advance_read(
&decoder->frame_queue);
return;
}
decoder->current_pts = frame->pts;
decoder->current_pts_time = av_gettime();
// the amount of time until we need to display this
// frame
pts_diff = frame->pts - decoder->previous_pts;
// if the first frame is a very large value, we've most
// likely started mid-stream, and the initial diff
// should be ignored.
if (decoder->first_frame) {
late_first_frame = pts_diff >= 1.0;
decoder->first_frame = false;
}
if (pts_diff <= 0 || late_first_frame) {
// if diff is invalid, use previous
pts_diff = decoder->previous_pts_diff;
}
// save for next time
decoder->previous_pts_diff = pts_diff;
decoder->previous_pts = frame->pts;
// if not synced against natural clock
if (clock->sync_type != decoder->natural_sync_clock) {
pts_diff = get_sync_adjusted_pts_diff(
clock, frame->pts, pts_diff);
}
decoder->timer_next_wake += pts_diff;
// compute the amount of time until next refresh
delay_until_next_wake = decoder->timer_next_wake -
(av_gettime() / 1000000.0L);
if (delay_until_next_wake < 0.010L) {
delay_until_next_wake = 0.010L;
}
if (delay_until_next_wake > pts_diff)
delay_until_next_wake = pts_diff;
ff_clock_release(&clock);
ff_callbacks_frame(decoder->callbacks, frame);
ff_decoder_schedule_refresh(
decoder,
(int)(delay_until_next_wake * 1000 + 0.5L));
av_frame_free(&frame->frame);
ff_circular_queue_advance_read(&decoder->frame_queue);
}
} else {
ff_decoder_schedule_refresh(decoder, 100);
}
}
bool ff_decoder_full(struct ff_decoder *decoder)
{
if (decoder == NULL)
return false;
return (decoder->packet_queue.total_size > decoder->packet_queue_size);
}
bool ff_decoder_accept(struct ff_decoder *decoder, struct ff_packet *packet)
{
if (decoder && packet->base.stream_index == decoder->stream->index) {
packet_queue_put(&decoder->packet_queue, packet);
return true;
}
return false;
}
double ff_decoder_get_best_effort_pts(struct ff_decoder *decoder,
AVFrame *frame)
{
// this is how long each frame is added to the amount of repeated frames
// according to the codec
double estimated_frame_delay;
int64_t best_effort_pts;
double d_pts;
// This function is ffmpeg only, replace with frame->pkt_pts
// if you are trying to compile for libav as a temporary
// measure
best_effort_pts = av_frame_get_best_effort_timestamp(frame);
if (best_effort_pts != AV_NOPTS_VALUE) {
// Fix the first pts if less than start_pts
if (best_effort_pts < decoder->start_pts) {
if (decoder->first_frame) {
best_effort_pts = decoder->start_pts;
} else {
av_log(NULL, AV_LOG_WARNING,
"multiple pts < "
"start_pts; setting start pts "
"to 0");
decoder->start_pts = 0;
}
}
best_effort_pts -= decoder->start_pts;
// Since the best effort pts came from the stream we use his
// time base
d_pts = best_effort_pts * av_q2d(decoder->stream->time_base);
decoder->predicted_pts = d_pts;
} else {
d_pts = decoder->predicted_pts;
}
// Update our predicted pts to include the repeated picture count
// Our predicted pts clock is based on the codecs time base
estimated_frame_delay = av_frame_get_pkt_duration(frame) *
av_q2d(decoder->codec->time_base);
// Add repeat frame delay
estimated_frame_delay +=
frame->repeat_pict / (1.0L / estimated_frame_delay);
decoder->predicted_pts += estimated_frame_delay;
return d_pts;
}
bool ff_decoder_set_frame_drop_state(struct ff_decoder *decoder,
int64_t start_time, int64_t pts)
{
if (pts != AV_NOPTS_VALUE) {
int64_t rescaled_pts = av_rescale_q(
pts, decoder->stream->time_base, AV_TIME_BASE_Q);
int64_t master_clock = av_gettime() - start_time;
int64_t diff = master_clock - rescaled_pts;
if (diff > (AV_TIME_BASE / 2)) {
decoder->codec->skip_frame = decoder->frame_drop;
decoder->codec->skip_idct = decoder->frame_drop;
decoder->codec->skip_loop_filter = decoder->frame_drop;
return true;
} else {
decoder->codec->skip_frame = AVDISCARD_DEFAULT;
decoder->codec->skip_idct = AVDISCARD_DEFAULT;
decoder->codec->skip_loop_filter = AVDISCARD_DEFAULT;
return false;
}
}
return false;
}

87
deps/libff/libff/ff-decoder.h vendored
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@ -1,87 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once
#include "ff-callbacks.h"
#include "ff-circular-queue.h"
#include "ff-clock.h"
#include "ff-packet-queue.h"
#include "ff-timer.h"
#include <stdbool.h>
#ifdef __cplusplus
extern "C" {
#endif
struct ff_decoder {
AVCodecContext *codec;
AVStream *stream;
pthread_t decoder_thread;
struct ff_timer refresh_timer;
struct ff_callbacks *callbacks;
struct ff_packet_queue packet_queue;
struct ff_circular_queue frame_queue;
unsigned int packet_queue_size;
double timer_next_wake;
double previous_pts; // previous decoded frame's pts
double previous_pts_diff; // previous decoded frame pts delay
double predicted_pts; // predicted pts of next frame
double current_pts; // pts of the most recently dispatched frame
int64_t current_pts_time; // clock time when current_pts was set
int64_t start_pts;
bool hwaccel_decoder;
enum AVDiscard frame_drop;
struct ff_clock *clock;
enum ff_av_sync_type natural_sync_clock;
bool first_frame;
bool eof;
bool abort;
bool finished;
};
typedef struct ff_decoder ff_decoder_t;
struct ff_decoder *ff_decoder_init(AVCodecContext *codec_context,
AVStream *stream,
unsigned int packet_queue_size,
unsigned int frame_queue_size);
bool ff_decoder_start(struct ff_decoder *decoder);
void ff_decoder_free(struct ff_decoder *decoder);
bool ff_decoder_full(struct ff_decoder *decoder);
bool ff_decoder_accept(struct ff_decoder *decoder, struct ff_packet *packet);
double ff_decoder_clock(void *opaque);
void ff_decoder_schedule_refresh(struct ff_decoder *decoder, int delay);
void ff_decoder_refresh(void *opaque);
double ff_decoder_get_best_effort_pts(struct ff_decoder *decoder,
AVFrame *frame);
bool ff_decoder_set_frame_drop_state(struct ff_decoder *decoder,
int64_t start_time, int64_t pts);
#ifdef __cplusplus
}
#endif

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@ -1,627 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ff-demuxer.h"
#include <libavutil/avstring.h>
#include <libavutil/time.h>
#include <libavdevice/avdevice.h>
#include <libavfilter/avfilter.h>
#include <assert.h>
#include "ff-compat.h"
#define DEFAULT_AV_SYNC_TYPE AV_SYNC_VIDEO_MASTER
#define AUDIO_FRAME_QUEUE_SIZE 1
#define VIDEO_FRAME_QUEUE_SIZE 1
#define AUDIO_PACKET_QUEUE_SIZE (5 * 16 * 1024)
#define VIDEO_PACKET_QUEUE_SIZE (5 * 256 * 1024)
static void *demux_thread(void *opaque_demuxer);
struct ff_demuxer *ff_demuxer_init()
{
struct ff_demuxer *demuxer;
av_register_all();
avdevice_register_all();
avfilter_register_all();
avformat_network_init();
demuxer = av_mallocz(sizeof(struct ff_demuxer));
if (demuxer == NULL)
return NULL;
demuxer->clock.sync_type = DEFAULT_AV_SYNC_TYPE;
demuxer->options.frame_drop = AVDISCARD_DEFAULT;
demuxer->options.audio_frame_queue_size = AUDIO_FRAME_QUEUE_SIZE;
demuxer->options.video_frame_queue_size = VIDEO_FRAME_QUEUE_SIZE;
demuxer->options.audio_packet_queue_size = AUDIO_PACKET_QUEUE_SIZE;
demuxer->options.video_packet_queue_size = VIDEO_PACKET_QUEUE_SIZE;
demuxer->options.is_hw_decoding = false;
return demuxer;
}
bool ff_demuxer_open(struct ff_demuxer *demuxer, char *input,
char *input_format)
{
int ret;
demuxer->input = av_strdup(input);
if (input_format != NULL)
demuxer->input_format = av_strdup(input_format);
ret = pthread_create(&demuxer->demuxer_thread, NULL, demux_thread,
demuxer);
return ret == 0;
}
void ff_demuxer_free(struct ff_demuxer *demuxer)
{
void *demuxer_thread_result;
demuxer->abort = true;
pthread_join(demuxer->demuxer_thread, &demuxer_thread_result);
if (demuxer->input != NULL)
av_free(demuxer->input);
if (demuxer->input_format != NULL)
av_free(demuxer->input_format);
if (demuxer->audio_decoder != NULL)
ff_decoder_free(demuxer->audio_decoder);
if (demuxer->video_decoder != NULL)
ff_decoder_free(demuxer->video_decoder);
if (demuxer->format_context)
avformat_close_input(&demuxer->format_context);
av_free(demuxer);
}
void ff_demuxer_set_callbacks(struct ff_callbacks *callbacks,
ff_callback_frame frame,
ff_callback_format format,
ff_callback_initialize initialize,
ff_callback_frame frame_initialize,
ff_callback_frame frame_free, void *opaque)
{
callbacks->opaque = opaque;
callbacks->frame = frame;
callbacks->format = format;
callbacks->initialize = initialize;
callbacks->frame_initialize = frame_initialize;
callbacks->frame_free = frame_free;
}
static int demuxer_interrupted_callback(void *opaque)
{
return opaque != NULL && ((struct ff_demuxer *)opaque)->abort;
}
static double ff_external_clock(void *opaque)
{
(void)opaque;
return av_gettime() / 1000000.0;
}
static bool set_clock_sync_type(struct ff_demuxer *demuxer)
{
if (demuxer->video_decoder == NULL) {
if (demuxer->clock.sync_type == AV_SYNC_VIDEO_MASTER)
demuxer->clock.sync_type = AV_SYNC_AUDIO_MASTER;
}
if (demuxer->audio_decoder == NULL) {
if (demuxer->clock.sync_type == AV_SYNC_AUDIO_MASTER)
demuxer->clock.sync_type = AV_SYNC_VIDEO_MASTER;
}
switch (demuxer->clock.sync_type) {
case AV_SYNC_AUDIO_MASTER:
demuxer->clock.sync_clock = ff_decoder_clock;
demuxer->clock.opaque = demuxer->audio_decoder;
break;
case AV_SYNC_VIDEO_MASTER:
demuxer->clock.sync_clock = ff_decoder_clock;
demuxer->clock.opaque = demuxer->video_decoder;
break;
case AV_SYNC_EXTERNAL_MASTER:
demuxer->clock.sync_clock = ff_external_clock;
demuxer->clock.opaque = NULL;
break;
default:
return false;
}
return true;
}
AVHWAccel *find_hwaccel_codec(AVCodecContext *codec_context)
{
AVHWAccel *hwaccel = NULL;
while ((hwaccel = av_hwaccel_next(hwaccel)) != NULL) {
if (hwaccel->id == codec_context->codec_id &&
(hwaccel->pix_fmt == AV_PIX_FMT_VDA_VLD ||
hwaccel->pix_fmt == AV_PIX_FMT_DXVA2_VLD ||
hwaccel->pix_fmt == AV_PIX_FMT_VAAPI_VLD)) {
return hwaccel;
}
}
return NULL;
}
enum AVPixelFormat get_hwaccel_format(struct AVCodecContext *s,
const enum AVPixelFormat *fmt)
{
(void)s;
(void)fmt;
// for now force output to common denominator
return AV_PIX_FMT_YUV420P;
}
static bool initialize_decoder(struct ff_demuxer *demuxer,
AVCodecContext *codec_context, AVStream *stream,
bool hwaccel_decoder)
{
switch (codec_context->codec_type) {
case AVMEDIA_TYPE_AUDIO:
demuxer->audio_decoder = ff_decoder_init(
codec_context, stream,
demuxer->options.audio_packet_queue_size,
demuxer->options.audio_frame_queue_size);
demuxer->audio_decoder->hwaccel_decoder = hwaccel_decoder;
demuxer->audio_decoder->frame_drop =
demuxer->options.frame_drop;
demuxer->audio_decoder->natural_sync_clock =
AV_SYNC_AUDIO_MASTER;
demuxer->audio_decoder->callbacks = &demuxer->audio_callbacks;
if (!ff_callbacks_format(&demuxer->audio_callbacks,
codec_context)) {
ff_decoder_free(demuxer->audio_decoder);
demuxer->audio_decoder = NULL;
return false;
}
demuxer->audio_decoder = demuxer->audio_decoder;
return true;
case AVMEDIA_TYPE_VIDEO:
demuxer->video_decoder = ff_decoder_init(
codec_context, stream,
demuxer->options.video_packet_queue_size,
demuxer->options.video_frame_queue_size);
demuxer->video_decoder->hwaccel_decoder = hwaccel_decoder;
demuxer->video_decoder->frame_drop =
demuxer->options.frame_drop;
demuxer->video_decoder->natural_sync_clock =
AV_SYNC_VIDEO_MASTER;
demuxer->video_decoder->callbacks = &demuxer->video_callbacks;
if (!ff_callbacks_format(&demuxer->video_callbacks,
codec_context)) {
ff_decoder_free(demuxer->video_decoder);
demuxer->video_decoder = NULL;
return false;
}
return true;
default:
return false;
}
}
typedef enum AVPixelFormat (*AVGetFormatCb)(struct AVCodecContext *s,
const enum AVPixelFormat *fmt);
static bool find_decoder(struct ff_demuxer *demuxer, AVStream *stream)
{
AVCodecContext *codec_context = NULL;
AVCodec *codec = NULL;
AVDictionary *options_dict = NULL;
int ret;
bool hwaccel_decoder = false;
codec_context = stream->codec;
// enable reference counted frames since we may have a buffer size
// > 1
codec_context->refcounted_frames = 1;
// png/tiff decoders have serious issues with multiple threads
if (codec_context->codec_id == AV_CODEC_ID_PNG ||
codec_context->codec_id == AV_CODEC_ID_TIFF ||
codec_context->codec_id == AV_CODEC_ID_JPEG2000 ||
codec_context->codec_id == AV_CODEC_ID_WEBP)
codec_context->thread_count = 1;
if (demuxer->options.is_hw_decoding) {
AVHWAccel *hwaccel = find_hwaccel_codec(codec_context);
if (hwaccel) {
AVCodec *codec_vda =
avcodec_find_decoder_by_name(hwaccel->name);
if (codec_vda != NULL) {
AVGetFormatCb original_get_format =
codec_context->get_format;
codec_context->get_format = get_hwaccel_format;
codec_context->opaque = hwaccel;
ret = avcodec_open2(codec_context, codec_vda,
&options_dict);
if (ret < 0) {
av_log(NULL, AV_LOG_WARNING,
"no hardware decoder found for"
" codec with id %d",
codec_context->codec_id);
codec_context->get_format =
original_get_format;
codec_context->opaque = NULL;
} else {
codec = codec_vda;
hwaccel_decoder = true;
}
}
}
}
if (codec == NULL) {
if (codec_context->codec_id == AV_CODEC_ID_VP8)
codec = avcodec_find_decoder_by_name("libvpx");
else if (codec_context->codec_id == AV_CODEC_ID_VP9)
codec = avcodec_find_decoder_by_name("libvpx-vp9");
if (!codec)
codec = avcodec_find_decoder(codec_context->codec_id);
if (codec == NULL) {
av_log(NULL, AV_LOG_WARNING,
"no decoder found for"
" codec with id %d",
codec_context->codec_id);
return false;
}
if (avcodec_open2(codec_context, codec, &options_dict) < 0) {
av_log(NULL, AV_LOG_WARNING,
"unable to open decoder"
" with codec id %d",
codec_context->codec_id);
return false;
}
}
return initialize_decoder(demuxer, codec_context, stream,
hwaccel_decoder);
}
void ff_demuxer_flush(struct ff_demuxer *demuxer)
{
if (demuxer->video_decoder != NULL &&
demuxer->video_decoder->stream != NULL) {
packet_queue_flush(&demuxer->video_decoder->packet_queue);
packet_queue_put_flush_packet(
&demuxer->video_decoder->packet_queue);
}
if (demuxer->audio_decoder != NULL &&
demuxer->audio_decoder->stream != NULL) {
packet_queue_flush(&demuxer->audio_decoder->packet_queue);
packet_queue_put_flush_packet(
&demuxer->audio_decoder->packet_queue);
}
}
void ff_demuxer_reset(struct ff_demuxer *demuxer)
{
struct ff_packet packet = {0};
struct ff_clock *clock = ff_clock_init();
clock->sync_type = demuxer->clock.sync_type;
clock->sync_clock = demuxer->clock.sync_clock;
clock->opaque = demuxer->clock.opaque;
packet.clock = clock;
if (demuxer->audio_decoder != NULL) {
ff_clock_retain(clock);
packet_queue_put(&demuxer->audio_decoder->packet_queue,
&packet);
}
if (demuxer->video_decoder != NULL) {
ff_clock_retain(clock);
packet_queue_put(&demuxer->video_decoder->packet_queue,
&packet);
}
}
static bool open_input(struct ff_demuxer *demuxer,
AVFormatContext **format_context)
{
AVInputFormat *input_format = NULL;
AVIOInterruptCB interrupted_callback;
interrupted_callback.callback = demuxer_interrupted_callback;
interrupted_callback.opaque = demuxer;
*format_context = avformat_alloc_context();
(*format_context)->interrupt_callback = interrupted_callback;
if (demuxer->input_format != NULL) {
input_format = av_find_input_format(demuxer->input_format);
if (input_format == NULL)
av_log(NULL, AV_LOG_WARNING,
"unable to find input "
"format %s",
demuxer->input_format);
}
if (avformat_open_input(format_context, demuxer->input, input_format,
&demuxer->options.custom_options) != 0)
return false;
return avformat_find_stream_info(*format_context, NULL) >= 0;
}
static inline void set_decoder_start_time(struct ff_decoder *decoder,
int64_t start_time)
{
if (decoder)
decoder->start_pts = av_rescale_q(start_time, AV_TIME_BASE_Q,
decoder->stream->time_base);
}
static bool find_and_initialize_stream_decoders(struct ff_demuxer *demuxer)
{
AVFormatContext *format_context = demuxer->format_context;
unsigned int i;
AVStream *audio_stream = NULL;
AVStream *video_stream = NULL;
int64_t start_time = INT64_MAX;
for (i = 0; i < format_context->nb_streams; i++) {
AVCodecContext *codec = format_context->streams[i]->codec;
if (codec->codec_type == AVMEDIA_TYPE_VIDEO && !video_stream)
video_stream = format_context->streams[i];
if (codec->codec_type == AVMEDIA_TYPE_AUDIO && !audio_stream)
audio_stream = format_context->streams[i];
}
int default_stream_index =
av_find_default_stream_index(demuxer->format_context);
if (default_stream_index >= 0) {
AVStream *stream =
format_context->streams[default_stream_index];
if (stream->codec->codec_type == AVMEDIA_TYPE_AUDIO)
demuxer->clock.sync_type = AV_SYNC_AUDIO_MASTER;
else if (stream->codec->codec_type == AVMEDIA_TYPE_VIDEO)
demuxer->clock.sync_type = AV_SYNC_VIDEO_MASTER;
}
if (video_stream != NULL)
find_decoder(demuxer, video_stream);
if (audio_stream != NULL)
find_decoder(demuxer, audio_stream);
if (demuxer->video_decoder == NULL && demuxer->audio_decoder == NULL) {
return false;
}
if (!set_clock_sync_type(demuxer)) {
return false;
}
for (i = 0; i < format_context->nb_streams; i++) {
AVStream *st = format_context->streams[i];
int64_t st_start_time;
if (st->discard == AVDISCARD_ALL ||
st->start_time == AV_NOPTS_VALUE) {
continue;
}
st_start_time = av_rescale_q(st->start_time, st->time_base,
AV_TIME_BASE_Q);
start_time = FFMIN(start_time, st_start_time);
}
if (format_context->start_time != AV_NOPTS_VALUE) {
if (start_time > format_context->start_time ||
start_time == INT64_MAX) {
start_time = format_context->start_time;
}
}
if (start_time != INT64_MAX) {
set_decoder_start_time(demuxer->video_decoder, start_time);
set_decoder_start_time(demuxer->audio_decoder, start_time);
}
if (demuxer->audio_decoder != NULL) {
if (ff_callbacks_initialize(&demuxer->audio_callbacks)) {
ff_decoder_start(demuxer->audio_decoder);
} else {
ff_decoder_free(demuxer->audio_decoder);
demuxer->audio_decoder = NULL;
if (!set_clock_sync_type(demuxer))
return false;
}
}
if (demuxer->video_decoder != NULL) {
if (ff_callbacks_initialize(&demuxer->video_callbacks)) {
ff_decoder_start(demuxer->video_decoder);
} else {
ff_decoder_free(demuxer->video_decoder);
demuxer->video_decoder = NULL;
if (!set_clock_sync_type(demuxer))
return false;
}
}
return set_clock_sync_type(demuxer);
}
static bool handle_seek(struct ff_demuxer *demuxer)
{
int ret;
if (demuxer->seek_request) {
AVStream *seek_stream = NULL;
int64_t seek_target = demuxer->seek_pos;
if (demuxer->video_decoder != NULL) {
seek_stream = demuxer->video_decoder->stream;
} else if (demuxer->audio_decoder != NULL) {
seek_stream = demuxer->audio_decoder->stream;
}
if (seek_stream != NULL &&
demuxer->format_context->duration != AV_NOPTS_VALUE) {
seek_target = av_rescale_q(seek_target, AV_TIME_BASE_Q,
seek_stream->time_base);
}
ret = av_seek_frame(demuxer->format_context, 0, seek_target,
demuxer->seek_flags);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "unable to seek stream: %s",
av_err2str(ret));
demuxer->seek_pos = 0;
demuxer->seek_request = false;
return false;
} else {
if (demuxer->seek_flush)
ff_demuxer_flush(demuxer);
ff_demuxer_reset(demuxer);
}
demuxer->seek_request = false;
}
return true;
}
static void seek_beginning(struct ff_demuxer *demuxer)
{
if (demuxer->format_context->duration == AV_NOPTS_VALUE) {
demuxer->seek_flags = AVSEEK_FLAG_FRAME;
demuxer->seek_pos = 0;
} else {
demuxer->seek_flags = AVSEEK_FLAG_BACKWARD;
demuxer->seek_pos = demuxer->format_context->start_time;
}
demuxer->seek_request = true;
demuxer->seek_flush = false;
av_log(NULL, AV_LOG_VERBOSE, "looping media %s", demuxer->input);
}
static void *demux_thread(void *opaque)
{
struct ff_demuxer *demuxer = (struct ff_demuxer *)opaque;
int result;
struct ff_packet packet = {0};
if (!open_input(demuxer, &demuxer->format_context))
goto fail;
av_dump_format(demuxer->format_context, 0, demuxer->input, 0);
if (!find_and_initialize_stream_decoders(demuxer))
goto fail;
ff_demuxer_reset(demuxer);
while (!demuxer->abort) {
// failed to seek (looping?)
if (!handle_seek(demuxer))
break;
if (ff_decoder_full(demuxer->audio_decoder) ||
ff_decoder_full(demuxer->video_decoder)) {
av_usleep(10 * 1000); // 10ms
continue;
}
result = av_read_frame(demuxer->format_context, &packet.base);
if (result < 0) {
bool eof = false;
if (result == AVERROR_EOF) {
eof = true;
} else if (demuxer->format_context->pb != NULL) {
AVIOContext *io_context =
demuxer->format_context->pb;
if (io_context->error == 0) {
av_usleep(100 * 1000); // 100ms
continue;
} else {
if (io_context->eof_reached != 0)
eof = true;
}
}
if (eof) {
if (demuxer->options.is_looping) {
seek_beginning(demuxer);
} else {
break;
}
continue;
} else {
av_log(NULL, AV_LOG_ERROR,
"av_read_frame() failed: %s",
av_err2str(result));
break;
}
}
if (ff_decoder_accept(demuxer->video_decoder, &packet))
continue;
else if (ff_decoder_accept(demuxer->audio_decoder, &packet))
continue;
else
av_free_packet(&packet.base);
}
if (demuxer->audio_decoder != NULL)
demuxer->audio_decoder->eof = true;
if (demuxer->video_decoder != NULL)
demuxer->video_decoder->eof = true;
fail:
demuxer->abort = true;
return NULL;
}

92
deps/libff/libff/ff-demuxer.h vendored
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@ -1,92 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once
#include "ff-circular-queue.h"
#include "ff-decoder.h"
#include "ff-packet-queue.h"
#include <libavformat/avformat.h>
#define FF_DEMUXER_FAIL -1
#define FF_DEMUXER_SUCCESS 1
#include "ff-callbacks.h"
#ifdef __cplusplus
extern "C" {
#endif
struct ff_demuxer_options {
int audio_packet_queue_size;
int video_packet_queue_size;
int audio_frame_queue_size;
int video_frame_queue_size;
bool is_hw_decoding;
bool is_looping;
enum AVDiscard frame_drop;
AVDictionary *custom_options;
};
typedef struct ff_demuxer_options ff_demuxer_options_t;
struct ff_demuxer {
AVIOContext *io_context;
AVFormatContext *format_context;
struct ff_clock clock;
struct ff_demuxer_options options;
struct ff_decoder *audio_decoder;
struct ff_callbacks audio_callbacks;
struct ff_decoder *video_decoder;
struct ff_callbacks video_callbacks;
pthread_t demuxer_thread;
int64_t seek_pos;
bool seek_request;
int seek_flags;
bool seek_flush;
bool abort;
char *input;
char *input_format;
};
typedef struct ff_demuxer ff_demuxer_t;
struct ff_demuxer *ff_demuxer_init();
bool ff_demuxer_open(struct ff_demuxer *demuxer, char *input,
char *input_format);
void ff_demuxer_free(struct ff_demuxer *demuxer);
void ff_demuxer_set_callbacks(struct ff_callbacks *callbacks,
ff_callback_frame frame,
ff_callback_format format,
ff_callback_initialize initialize,
ff_callback_frame frame_initialize,
ff_callback_frame frame_free, void *opaque);
void ff_demuxer_flush(struct ff_demuxer *demuxer);
#ifdef __cplusplus
}
#endif

38
deps/libff/libff/ff-frame.h vendored
View File

@ -1,38 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once
#include "ff-clock.h"
#include <libavcodec/avcodec.h>
#ifdef __cplusplus
extern "C" {
#endif
struct ff_frame {
AVFrame *frame;
struct ff_clock *clock;
double pts;
int64_t duration;
};
typedef struct ff_frame ff_frame_t;
#ifdef __cplusplus
}
#endif

156
deps/libff/libff/ff-packet-queue.c vendored
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@ -1,156 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ff-packet-queue.h"
#include "ff-compat.h"
bool packet_queue_init(struct ff_packet_queue *q)
{
memset(q, 0, sizeof(struct ff_packet_queue));
if (pthread_mutex_init(&q->mutex, NULL) != 0)
goto fail;
if (pthread_cond_init(&q->cond, NULL) != 0)
goto fail1;
av_init_packet(&q->flush_packet.base);
q->flush_packet.base.data = (uint8_t *)"FLUSH";
return true;
fail1:
pthread_mutex_destroy(&q->mutex);
fail:
return false;
}
void packet_queue_abort(struct ff_packet_queue *q)
{
pthread_mutex_lock(&q->mutex);
q->abort = true;
pthread_cond_signal(&q->cond);
pthread_mutex_unlock(&q->mutex);
}
void packet_queue_free(struct ff_packet_queue *q)
{
packet_queue_flush(q);
pthread_mutex_destroy(&q->mutex);
pthread_cond_destroy(&q->cond);
av_free_packet(&q->flush_packet.base);
}
int packet_queue_put(struct ff_packet_queue *q, struct ff_packet *packet)
{
struct ff_packet_list *new_packet;
new_packet = av_malloc(sizeof(struct ff_packet_list));
if (new_packet == NULL)
return FF_PACKET_FAIL;
new_packet->packet = *packet;
new_packet->next = NULL;
pthread_mutex_lock(&q->mutex);
if (q->last_packet == NULL)
q->first_packet = new_packet;
else
q->last_packet->next = new_packet;
q->last_packet = new_packet;
q->count++;
q->total_size += new_packet->packet.base.size;
pthread_cond_signal(&q->cond);
pthread_mutex_unlock(&q->mutex);
return FF_PACKET_SUCCESS;
}
int packet_queue_put_flush_packet(struct ff_packet_queue *q)
{
return packet_queue_put(q, &q->flush_packet);
}
int packet_queue_get(struct ff_packet_queue *q, struct ff_packet *packet,
bool block)
{
struct ff_packet_list *potential_packet;
int return_status;
pthread_mutex_lock(&q->mutex);
while (true) {
potential_packet = q->first_packet;
if (potential_packet != NULL) {
q->first_packet = potential_packet->next;
if (q->first_packet == NULL)
q->last_packet = NULL;
q->count--;
q->total_size -= potential_packet->packet.base.size;
*packet = potential_packet->packet;
av_free(potential_packet);
return_status = FF_PACKET_SUCCESS;
break;
} else if (!block) {
return_status = FF_PACKET_EMPTY;
break;
} else {
pthread_cond_wait(&q->cond, &q->mutex);
if (q->abort) {
return_status = FF_PACKET_FAIL;
break;
}
}
}
pthread_mutex_unlock(&q->mutex);
return return_status;
}
void packet_queue_flush(struct ff_packet_queue *q)
{
struct ff_packet_list *packet;
pthread_mutex_lock(&q->mutex);
for (packet = q->first_packet; packet != NULL;
packet = q->first_packet) {
q->first_packet = packet->next;
av_free_packet(&packet->packet.base);
if (packet->packet.clock != NULL)
ff_clock_release(&packet->packet.clock);
av_freep(&packet);
}
q->last_packet = q->first_packet = NULL;
q->count = 0;
q->total_size = 0;
pthread_mutex_unlock(&q->mutex);
}

68
deps/libff/libff/ff-packet-queue.h vendored
View File

@ -1,68 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once
#include "ff-clock.h"
#include <libavformat/avformat.h>
#include <pthread.h>
#include <stdbool.h>
#define FF_PACKET_FAIL -1
#define FF_PACKET_EMPTY 0
#define FF_PACKET_SUCCESS 1
#ifdef __cplusplus
extern "C" {
#endif
struct ff_packet {
AVPacket base;
ff_clock_t *clock;
};
struct ff_packet_list {
struct ff_packet packet;
struct ff_packet_list *next;
};
struct ff_packet_queue {
struct ff_packet_list *first_packet;
struct ff_packet_list *last_packet;
pthread_mutex_t mutex;
pthread_cond_t cond;
struct ff_packet flush_packet;
int count;
unsigned int total_size;
bool abort;
};
typedef struct ff_packet_queue ff_packet_queue_t;
bool packet_queue_init(struct ff_packet_queue *q);
void packet_queue_abort(struct ff_packet_queue *q);
void packet_queue_free(struct ff_packet_queue *q);
int packet_queue_put(struct ff_packet_queue *q, struct ff_packet *packet);
int packet_queue_put_flush_packet(struct ff_packet_queue *q);
int packet_queue_get(struct ff_packet_queue *q, struct ff_packet *packet,
bool block);
void packet_queue_flush(struct ff_packet_queue *q);
#ifdef __cplusplus
}
#endif

27
deps/libff/libff/ff-threading-posix.c vendored
View File

@ -1,27 +0,0 @@
/*
* Copyright (c) 2023 Lain Bailey <lain@obsproject.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ff-threading.h"
long ff_atomic_inc_long(volatile long *val)
{
return __sync_add_and_fetch(val, 1);
}
long ff_atomic_dec_long(volatile long *val)
{
return __sync_sub_and_fetch(val, 1);
}

31
deps/libff/libff/ff-threading-windows.c vendored
View File

@ -1,31 +0,0 @@
/*
* Copyright (c) 2023 Lain Bailey <lain@obsproject.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ff-threading.h"
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#undef WIN32_LEAN_AND_MEAN
long ff_atomic_inc_long(volatile long *val)
{
return InterlockedIncrement(val);
}
long ff_atomic_dec_long(volatile long *val)
{
return InterlockedDecrement(val);
}

28
deps/libff/libff/ff-threading.h vendored
View File

@ -1,28 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
long ff_atomic_inc_long(volatile long *val);
long ff_atomic_dec_long(volatile long *val);
#ifdef __cplusplus
}
#endif

145
deps/libff/libff/ff-timer.c vendored
View File

@ -1,145 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ff-timer.h"
#include <libavutil/time.h>
#include <time.h>
#include <string.h>
#include <assert.h>
static void *timer_thread(void *opaque)
{
struct ff_timer *timer = (struct ff_timer *)opaque;
int ret;
while (true) {
bool callback = false;
pthread_mutex_lock(&timer->mutex);
if (timer->abort) {
pthread_mutex_unlock(&timer->mutex);
break;
}
uint64_t current_time = av_gettime();
if (current_time < timer->next_wake) {
struct timespec sleep_time = {
.tv_sec = timer->next_wake / AV_TIME_BASE,
.tv_nsec = (timer->next_wake % AV_TIME_BASE) *
1000};
ret = pthread_cond_timedwait(
&timer->cond, &timer->mutex, &sleep_time);
if (ret != ETIMEDOUT) {
// failed to wait, just sleep
av_usleep((unsigned)(timer->next_wake -
current_time));
}
pthread_mutex_unlock(&timer->mutex);
continue;
// we can be woken up merely to set a sooner wake time
} else {
// no new next_wake, sleep until we get something
av_usleep(1000);
}
// we woke up for some reason
current_time = av_gettime();
if (timer->next_wake <= current_time || timer->needs_wake) {
callback = true;
timer->needs_wake = false;
}
pthread_mutex_unlock(&timer->mutex);
if (callback)
timer->callback(timer->opaque);
}
return NULL;
}
bool ff_timer_init(struct ff_timer *timer, ff_timer_callback callback,
void *opaque)
{
memset(timer, 0, sizeof(struct ff_timer));
timer->abort = false;
timer->callback = callback;
timer->opaque = opaque;
if (pthread_mutexattr_init(&timer->mutexattr) != 0)
goto fail;
if (pthread_mutexattr_settype(&timer->mutexattr,
PTHREAD_MUTEX_RECURSIVE))
goto fail1;
if (pthread_mutex_init(&timer->mutex, &timer->mutexattr) != 0)
goto fail1;
if (pthread_cond_init(&timer->cond, NULL) != 0)
goto fail2;
if (pthread_create(&timer->timer_thread, NULL, timer_thread, timer) !=
0)
goto fail3;
return true;
fail3:
pthread_cond_destroy(&timer->cond);
fail2:
pthread_mutex_destroy(&timer->mutex);
fail1:
pthread_mutexattr_destroy(&timer->mutexattr);
fail:
return false;
}
void ff_timer_free(struct ff_timer *timer)
{
void *thread_result;
assert(timer != NULL);
pthread_mutex_lock(&timer->mutex);
timer->abort = true;
pthread_cond_signal(&timer->cond);
pthread_mutex_unlock(&timer->mutex);
pthread_join(timer->timer_thread, &thread_result);
pthread_mutex_destroy(&timer->mutex);
pthread_mutexattr_destroy(&timer->mutexattr);
pthread_cond_destroy(&timer->cond);
}
void ff_timer_schedule(struct ff_timer *timer, uint64_t microseconds)
{
uint64_t cur_time = av_gettime();
uint64_t new_wake_time = cur_time + microseconds;
pthread_mutex_lock(&timer->mutex);
timer->needs_wake = true;
if (new_wake_time < timer->next_wake || cur_time > timer->next_wake)
timer->next_wake = new_wake_time;
pthread_cond_signal(&timer->cond);
pthread_mutex_unlock(&timer->mutex);
}

53
deps/libff/libff/ff-timer.h vendored
View File

@ -1,53 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once
#include <libavutil/avutil.h>
#include <pthread.h>
#include <stdbool.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef void (*ff_timer_callback)(void *opaque);
struct ff_timer {
ff_timer_callback callback;
void *opaque;
pthread_mutex_t mutex;
pthread_mutexattr_t mutexattr;
pthread_cond_t cond;
pthread_t timer_thread;
uint64_t next_wake;
bool needs_wake;
bool abort;
};
typedef struct ff_timer ff_timer_t;
bool ff_timer_init(struct ff_timer *timer, ff_timer_callback callback,
void *opaque);
void ff_timer_free(struct ff_timer *timer);
void ff_timer_schedule(struct ff_timer *timer, uint64_t microseconds);
#ifdef __cplusplus
}
#endif

154
deps/libff/libff/ff-video-decoder.c vendored
View File

@ -1,154 +0,0 @@
/*
* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "ff-callbacks.h"
#include "ff-circular-queue.h"
#include "ff-clock.h"
#include "ff-decoder.h"
#include "ff-frame.h"
#include "ff-packet-queue.h"
#include "ff-timer.h"
#include <libavutil/time.h>
#include <libswscale/swscale.h>
#include <assert.h>
#include "ff-compat.h"
static bool queue_frame(struct ff_decoder *decoder, AVFrame *frame,
double best_effort_pts)
{
struct ff_frame *queue_frame;
bool call_initialize;
ff_circular_queue_wait_write(&decoder->frame_queue);
if (decoder->abort) {
return false;
}
queue_frame = ff_circular_queue_peek_write(&decoder->frame_queue);
// Check if we need to communicate a different format has been received
// to any callbacks
AVCodecContext *codec = decoder->codec;
call_initialize = (queue_frame->frame == NULL ||
queue_frame->frame->width != codec->width ||
queue_frame->frame->height != codec->height ||
queue_frame->frame->format != codec->pix_fmt);
if (queue_frame->frame != NULL) {
// This shouldn't happen any more, the frames are freed in
// ff_decoder_refresh.
av_frame_free(&queue_frame->frame);
}
queue_frame->frame = av_frame_clone(frame);
queue_frame->clock = ff_clock_retain(decoder->clock);
if (call_initialize)
ff_callbacks_frame_initialize(queue_frame, decoder->callbacks);
queue_frame->pts = best_effort_pts;
ff_circular_queue_advance_write(&decoder->frame_queue, queue_frame);
return true;
}
void *ff_video_decoder_thread(void *opaque_video_decoder)
{
struct ff_decoder *decoder = (struct ff_decoder *)opaque_video_decoder;
struct ff_packet packet = {0};
int complete;
AVFrame *frame = av_frame_alloc();
int ret;
bool key_frame;
while (!decoder->abort) {
if (decoder->eof)
ret = packet_queue_get(&decoder->packet_queue, &packet,
0);
else
ret = packet_queue_get(&decoder->packet_queue, &packet,
1);
if (ret == FF_PACKET_EMPTY || ret == FF_PACKET_FAIL) {
// should we just use abort here?
break;
}
if (packet.base.data ==
decoder->packet_queue.flush_packet.base.data) {
avcodec_flush_buffers(decoder->codec);
continue;
}
// We received a reset packet with a new clock
if (packet.clock != NULL) {
if (decoder->clock != NULL)
ff_clock_release(&decoder->clock);
decoder->clock = ff_clock_move(&packet.clock);
av_free_packet(&packet.base);
continue;
}
int64_t start_time = ff_clock_start_time(decoder->clock);
key_frame = packet.base.flags & AV_PKT_FLAG_KEY;
// We can only make decisions on keyframes for
// hw decoders (maybe just OSX?)
// For now, always make drop decisions on keyframes
bool frame_drop_check = key_frame;
// Must have a proper packet pts to drop frames here
frame_drop_check &= start_time != AV_NOPTS_VALUE;
if (frame_drop_check)
ff_decoder_set_frame_drop_state(decoder, start_time,
packet.base.pts);
avcodec_decode_video2(decoder->codec, frame, &complete,
&packet.base);
// Did we get an entire video frame? This doesn't guarantee
// there is a picture to show for some codecs, but we still want
// to adjust our various internal clocks for the next frame
if (complete) {
// If we don't have a good PTS, try to guess based
// on last received PTS provided plus prediction
// This function returns a pts scaled to stream
// time base
double best_effort_pts =
ff_decoder_get_best_effort_pts(decoder, frame);
queue_frame(decoder, frame, best_effort_pts);
av_frame_unref(frame);
}
av_free_packet(&packet.base);
}
if (decoder->clock != NULL)
ff_clock_release(&decoder->clock);
av_frame_free(&frame);
decoder->finished = true;
return NULL;
}