deps/libff: Remove unused code and header files

deps/libff/libff/ff-audio-decoder.c

@@ -1,205 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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;
-}

deps/libff/libff/ff-callbacks.c

@@ -1,60 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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);
-}

deps/libff/libff/ff-callbacks.h

@@ -1,52 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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

deps/libff/libff/ff-circular-queue.c

@@ -1,137 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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);
-}

deps/libff/libff/ff-circular-queue.h

@@ -1,58 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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

deps/libff/libff/ff-clock.c

@@ -1,141 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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;
-}

deps/libff/libff/ff-clock.h

@@ -1,65 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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

deps/libff/libff/ff-compat.h

@@ -1,29 +0,0 @@
-/*
- * Copyright (c) 2023 Lain Bailey <[email protected]>
- *
- * 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

deps/libff/libff/ff-decoder.c

@@ -1,387 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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;
-}

deps/libff/libff/ff-decoder.h

@@ -1,87 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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

deps/libff/libff/ff-demuxer.c

@@ -1,627 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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;
-}

deps/libff/libff/ff-demuxer.h

@@ -1,92 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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

deps/libff/libff/ff-frame.h

@@ -1,38 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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

deps/libff/libff/ff-packet-queue.c

@@ -1,156 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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);
-}

deps/libff/libff/ff-packet-queue.h

@@ -1,68 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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

deps/libff/libff/ff-threading-posix.c

@@ -1,27 +0,0 @@
-/*
- * Copyright (c) 2023 Lain Bailey <[email protected]>
- *
- * 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);
-}

deps/libff/libff/ff-threading-windows.c

@@ -1,31 +0,0 @@
-/*
- * Copyright (c) 2023 Lain Bailey <[email protected]>
- *
- * 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);
-}

deps/libff/libff/ff-threading.h

@@ -1,28 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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

deps/libff/libff/ff-timer.c

@@ -1,145 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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);
-}

deps/libff/libff/ff-timer.h

@@ -1,53 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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

deps/libff/libff/ff-video-decoder.c

@@ -1,154 +0,0 @@
-/*
- * Copyright (c) 2015 John R. Bradley <[email protected]>
- *
- * 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;
-}