Head

GCC Code Coverage Report

Directory:	../../../ffmpeg/		Exec	Total	Coverage
File:	src/libavcodec/frame_thread_encoder.c	Lines:	146	186	78.5 %
Date:	2019-11-18 18:00:01	Branches:	68	110	61.8 %


/*
 * Copyright (c) 2012 Michael Niedermayer <michaelni@gmx.at>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <stdatomic.h>

#include "frame_thread_encoder.h"

#include "libavutil/fifo.h"
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/thread.h"
#include "avcodec.h"
#include "internal.h"
#include "thread.h"

#define MAX_THREADS 64
#define BUFFER_SIZE (2*MAX_THREADS)

typedef struct{
    void *indata;
    void *outdata;
    int64_t return_code;
    unsigned index;
} Task;

typedef struct{
    AVCodecContext *parent_avctx;
    pthread_mutex_t buffer_mutex;

    AVFifoBuffer *task_fifo;
    pthread_mutex_t task_fifo_mutex;
    pthread_cond_t task_fifo_cond;

    Task finished_tasks[BUFFER_SIZE];
    pthread_mutex_t finished_task_mutex;
    pthread_cond_t finished_task_cond;

    unsigned task_index;
    unsigned finished_task_index;

    pthread_t worker[MAX_THREADS];
    atomic_int exit;
} ThreadContext;

static void * attribute_align_arg worker(void *v){
    AVCodecContext *avctx = v;
    ThreadContext *c = avctx->internal->frame_thread_encoder;
    AVPacket *pkt = NULL;

    while (!atomic_load(&c->exit)) {
        int got_packet, ret;
        AVFrame *frame;
        Task task;

        if(!pkt) pkt = av_packet_alloc();
        if(!pkt) continue;
        av_init_packet(pkt);

        pthread_mutex_lock(&c->task_fifo_mutex);
        while (av_fifo_size(c->task_fifo) <= 0 || atomic_load(&c->exit)) {
            if (atomic_load(&c->exit)) {
                pthread_mutex_unlock(&c->task_fifo_mutex);
                goto end;
            }
            pthread_cond_wait(&c->task_fifo_cond, &c->task_fifo_mutex);
        }
        av_fifo_generic_read(c->task_fifo, &task, sizeof(task), NULL);
        pthread_mutex_unlock(&c->task_fifo_mutex);
        frame = task.indata;

        ret = avcodec_encode_video2(avctx, pkt, frame, &got_packet);
        pthread_mutex_lock(&c->buffer_mutex);
        av_frame_unref(frame);
        pthread_mutex_unlock(&c->buffer_mutex);
        av_frame_free(&frame);
        if(got_packet) {
            int ret2 = av_packet_make_refcounted(pkt);
            if (ret >= 0 && ret2 < 0)
                ret = ret2;
        } else {
            pkt->data = NULL;
            pkt->size = 0;
        }
        pthread_mutex_lock(&c->finished_task_mutex);
        c->finished_tasks[task.index].outdata = pkt; pkt = NULL;
        c->finished_tasks[task.index].return_code = ret;
        pthread_cond_signal(&c->finished_task_cond);
        pthread_mutex_unlock(&c->finished_task_mutex);
    }
end:
    av_free(pkt);
    pthread_mutex_lock(&c->buffer_mutex);
    avcodec_close(avctx);
    pthread_mutex_unlock(&c->buffer_mutex);
    av_freep(&avctx);
    return NULL;
}

int ff_frame_thread_encoder_init(AVCodecContext *avctx, AVDictionary *options){
    int i=0;
    ThreadContext *c;


    if(   !(avctx->thread_type & FF_THREAD_FRAME)
       || !(avctx->codec->capabilities & AV_CODEC_CAP_INTRA_ONLY))
        return 0;

    if(   !avctx->thread_count
       && avctx->codec_id == AV_CODEC_ID_MJPEG
       && !(avctx->flags & AV_CODEC_FLAG_QSCALE)) {
        av_log(avctx, AV_LOG_DEBUG,
               "Forcing thread count to 1 for MJPEG encoding, use -thread_type slice "
               "or a constant quantizer if you want to use multiple cpu cores\n");
        avctx->thread_count = 1;
    }
    if(   avctx->thread_count > 1
       && avctx->codec_id == AV_CODEC_ID_MJPEG
       && !(avctx->flags & AV_CODEC_FLAG_QSCALE))
        av_log(avctx, AV_LOG_WARNING,
               "MJPEG CBR encoding works badly with frame multi-threading, consider "
               "using -threads 1, -thread_type slice or a constant quantizer.\n");

    if (avctx->codec_id == AV_CODEC_ID_HUFFYUV ||
        avctx->codec_id == AV_CODEC_ID_FFVHUFF) {
        int warn = 0;
        int context_model = 0;
        AVDictionaryEntry *con = av_dict_get(options, "context", NULL, AV_DICT_MATCH_CASE);

        if (con && con->value)
            context_model = atoi(con->value);

        if (avctx->flags & AV_CODEC_FLAG_PASS1)
            warn = 1;
        else if(context_model > 0) {
            AVDictionaryEntry *t = av_dict_get(options, "non_deterministic",
                                               NULL, AV_DICT_MATCH_CASE);
            warn = !t || !t->value || !atoi(t->value) ? 1 : 0;
        }
        // huffyuv does not support these with multiple frame threads currently
        if (warn) {
            av_log(avctx, AV_LOG_WARNING,
               "Forcing thread count to 1 for huffyuv encoding with first pass or context 1\n");
            avctx->thread_count = 1;
        }
    }

    if(!avctx->thread_count) {
        avctx->thread_count = av_cpu_count();
        avctx->thread_count = FFMIN(avctx->thread_count, MAX_THREADS);
    }

    if(avctx->thread_count <= 1)
        return 0;

    if(avctx->thread_count > MAX_THREADS)
        return AVERROR(EINVAL);

    av_assert0(!avctx->internal->frame_thread_encoder);
    c = avctx->internal->frame_thread_encoder = av_mallocz(sizeof(ThreadContext));
    if(!c)
        return AVERROR(ENOMEM);

    c->parent_avctx = avctx;

    c->task_fifo = av_fifo_alloc_array(BUFFER_SIZE, sizeof(Task));
    if(!c->task_fifo)
        goto fail;

    pthread_mutex_init(&c->task_fifo_mutex, NULL);
    pthread_mutex_init(&c->finished_task_mutex, NULL);
    pthread_mutex_init(&c->buffer_mutex, NULL);
    pthread_cond_init(&c->task_fifo_cond, NULL);
    pthread_cond_init(&c->finished_task_cond, NULL);
    atomic_init(&c->exit, 0);

    for(i=0; i<avctx->thread_count ; i++){
        AVDictionary *tmp = NULL;
        int ret;
        void *tmpv;
        AVCodecContext *thread_avctx = avcodec_alloc_context3(avctx->codec);
        if(!thread_avctx)
            goto fail;
        tmpv = thread_avctx->priv_data;
        *thread_avctx = *avctx;
        ret = av_opt_copy(thread_avctx, avctx);
        if (ret < 0)
            goto fail;
        thread_avctx->priv_data = tmpv;
        thread_avctx->internal = NULL;
        if (avctx->codec->priv_class) {
            int ret = av_opt_copy(thread_avctx->priv_data, avctx->priv_data);
            if (ret < 0)
                goto fail;
        } else if (avctx->codec->priv_data_size) {
            memcpy(thread_avctx->priv_data, avctx->priv_data, avctx->codec->priv_data_size);
        }
        thread_avctx->thread_count = 1;
        thread_avctx->active_thread_type &= ~FF_THREAD_FRAME;

        av_dict_copy(&tmp, options, 0);
        av_dict_set(&tmp, "threads", "1", 0);
        if(avcodec_open2(thread_avctx, avctx->codec, &tmp) < 0) {
            av_dict_free(&tmp);
            goto fail;
        }
        av_dict_free(&tmp);
        av_assert0(!thread_avctx->internal->frame_thread_encoder);
        thread_avctx->internal->frame_thread_encoder = c;
        if(pthread_create(&c->worker[i], NULL, worker, thread_avctx)) {
            goto fail;
        }
    }

    avctx->active_thread_type = FF_THREAD_FRAME;

    return 0;
fail:
    avctx->thread_count = i;
    av_log(avctx, AV_LOG_ERROR, "ff_frame_thread_encoder_init failed\n");
    ff_frame_thread_encoder_free(avctx);
    return -1;
}

void ff_frame_thread_encoder_free(AVCodecContext *avctx){
    int i;
    ThreadContext *c= avctx->internal->frame_thread_encoder;

    pthread_mutex_lock(&c->task_fifo_mutex);
    atomic_store(&c->exit, 1);
    pthread_cond_broadcast(&c->task_fifo_cond);
    pthread_mutex_unlock(&c->task_fifo_mutex);

    for (i=0; i<avctx->thread_count; i++) {
         pthread_join(c->worker[i], NULL);
    }

    while (av_fifo_size(c->task_fifo) > 0) {
        Task task;
        AVFrame *frame;
        av_fifo_generic_read(c->task_fifo, &task, sizeof(task), NULL);
        frame = task.indata;
        av_frame_free(&frame);
        task.indata = NULL;
    }

    for (i=0; i<BUFFER_SIZE; i++) {
        if (c->finished_tasks[i].outdata != NULL) {
            AVPacket *pkt = c->finished_tasks[i].outdata;
            av_packet_free(&pkt);
            c->finished_tasks[i].outdata = NULL;
        }
    }

    pthread_mutex_destroy(&c->task_fifo_mutex);
    pthread_mutex_destroy(&c->finished_task_mutex);
    pthread_mutex_destroy(&c->buffer_mutex);
    pthread_cond_destroy(&c->task_fifo_cond);
    pthread_cond_destroy(&c->finished_task_cond);
    av_fifo_freep(&c->task_fifo);
    av_freep(&avctx->internal->frame_thread_encoder);
}

int ff_thread_video_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet_ptr){
    ThreadContext *c = avctx->internal->frame_thread_encoder;
    Task task;
    int ret;

    av_assert1(!*got_packet_ptr);

    if(frame){
        AVFrame *new = av_frame_alloc();
        if(!new)
            return AVERROR(ENOMEM);
        ret = av_frame_ref(new, frame);
        if(ret < 0) {
            av_frame_free(&new);
            return ret;
        }

        task.index = c->task_index;
        task.indata = (void*)new;
        pthread_mutex_lock(&c->task_fifo_mutex);
        av_fifo_generic_write(c->task_fifo, &task, sizeof(task), NULL);
        pthread_cond_signal(&c->task_fifo_cond);
        pthread_mutex_unlock(&c->task_fifo_mutex);

        c->task_index = (c->task_index+1) % BUFFER_SIZE;
    }

    pthread_mutex_lock(&c->finished_task_mutex);
    if (c->task_index == c->finished_task_index ||
        (frame && !c->finished_tasks[c->finished_task_index].outdata &&
         (c->task_index - c->finished_task_index) % BUFFER_SIZE <= avctx->thread_count)) {
            pthread_mutex_unlock(&c->finished_task_mutex);
            return 0;
        }

    while (!c->finished_tasks[c->finished_task_index].outdata) {
        pthread_cond_wait(&c->finished_task_cond, &c->finished_task_mutex);
    }
    task = c->finished_tasks[c->finished_task_index];
    *pkt = *(AVPacket*)(task.outdata);
    if(pkt->data)
        *got_packet_ptr = 1;
    av_freep(&c->finished_tasks[c->finished_task_index].outdata);
    c->finished_task_index = (c->finished_task_index+1) % BUFFER_SIZE;
    pthread_mutex_unlock(&c->finished_task_mutex);

    return task.return_code;
}


Generated by: GCOVR (Version 4.1)

Line	Branch	Exec	Source
1			/*
2			* Copyright (c) 2012 Michael Niedermayer <michaelni@gmx.at>
3			*
4			* This file is part of FFmpeg.
5			*
6			* FFmpeg is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU Lesser General Public
8			* License as published by the Free Software Foundation; either
9			* version 2.1 of the License, or (at your option) any later version.
10			*
11			* FFmpeg is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* Lesser General Public License for more details.
15			*
16			* You should have received a copy of the GNU Lesser General Public
17			* License along with FFmpeg; if not, write to the Free Software
18			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19			*/
20
21			#include <stdatomic.h>
22
23			#include "frame_thread_encoder.h"
24
25			#include "libavutil/fifo.h"
26			#include "libavutil/avassert.h"
27			#include "libavutil/imgutils.h"
28			#include "libavutil/opt.h"
29			#include "libavutil/thread.h"
30			#include "avcodec.h"
31			#include "internal.h"
32			#include "thread.h"
33
34			#define MAX_THREADS 64
35			#define BUFFER_SIZE (2*MAX_THREADS)
36
37			typedef struct{
38			void *indata;
39			void *outdata;
40			int64_t return_code;
41			unsigned index;
42			} Task;
43
44			typedef struct{
45			AVCodecContext *parent_avctx;
46			pthread_mutex_t buffer_mutex;
47
48			AVFifoBuffer *task_fifo;
49			pthread_mutex_t task_fifo_mutex;
50			pthread_cond_t task_fifo_cond;
51
52			Task finished_tasks[BUFFER_SIZE];
53			pthread_mutex_t finished_task_mutex;
54			pthread_cond_t finished_task_cond;
55
56			unsigned task_index;
57			unsigned finished_task_index;
58
59			pthread_t worker[MAX_THREADS];
60			atomic_int exit;
61			} ThreadContext;
62
63		132	static void * attribute_align_arg worker(void *v){
64		132	AVCodecContext *avctx = v;
65		132	ThreadContext *c = avctx->internal->frame_thread_encoder;
66		132	AVPacket *pkt = NULL;
67
68	✓✓	897	while (!atomic_load(&c->exit)) {
69			int got_packet, ret;
70			AVFrame *frame;
71			Task task;
72
73	✓✗	896	if(!pkt) pkt = av_packet_alloc();
74	✗✓	896	if(!pkt) continue;
75		896	av_init_packet(pkt);
76
77		896	pthread_mutex_lock(&c->task_fifo_mutex);
78	✓✓✗✓	1715	while (av_fifo_size(c->task_fifo) <= 0 \|\| atomic_load(&c->exit)) {
79	✓✓	950	if (atomic_load(&c->exit)) {
80		131	pthread_mutex_unlock(&c->task_fifo_mutex);
81		131	goto end;
82			}
83		819	pthread_cond_wait(&c->task_fifo_cond, &c->task_fifo_mutex);
84			}
85		765	av_fifo_generic_read(c->task_fifo, &task, sizeof(task), NULL);
86		765	pthread_mutex_unlock(&c->task_fifo_mutex);
87		765	frame = task.indata;
88
89		765	ret = avcodec_encode_video2(avctx, pkt, frame, &got_packet);
90		765	pthread_mutex_lock(&c->buffer_mutex);
91		765	av_frame_unref(frame);
92		765	pthread_mutex_unlock(&c->buffer_mutex);
93		765	av_frame_free(&frame);
94	✓✗	765	if(got_packet) {
95		765	int ret2 = av_packet_make_refcounted(pkt);
96	✓✗✗✓	765	if (ret >= 0 && ret2 < 0)
97			ret = ret2;
98			} else {
99			pkt->data = NULL;
100			pkt->size = 0;
101			}
102		765	pthread_mutex_lock(&c->finished_task_mutex);
103		765	c->finished_tasks[task.index].outdata = pkt; pkt = NULL;
104		765	c->finished_tasks[task.index].return_code = ret;
105		765	pthread_cond_signal(&c->finished_task_cond);
106		765	pthread_mutex_unlock(&c->finished_task_mutex);
107			}
108		1	end:
109		132	av_free(pkt);
110		132	pthread_mutex_lock(&c->buffer_mutex);
111		132	avcodec_close(avctx);
112		132	pthread_mutex_unlock(&c->buffer_mutex);
113		132	av_freep(&avctx);
114		132	return NULL;
115			}
116
117		5882	int ff_frame_thread_encoder_init(AVCodecContext avctx, AVDictionary options){
118		5882	int i=0;
119			ThreadContext *c;
120
121
122	✓✓	5882	if( !(avctx->thread_type & FF_THREAD_FRAME)
123	✓✓	5852	\|\| !(avctx->codec->capabilities & AV_CODEC_CAP_INTRA_ONLY))
124		5528	return 0;
125
126	✓✓	354	if( !avctx->thread_count
127	✗✓	15	&& avctx->codec_id == AV_CODEC_ID_MJPEG
128			&& !(avctx->flags & AV_CODEC_FLAG_QSCALE)) {
129			av_log(avctx, AV_LOG_DEBUG,
130			"Forcing thread count to 1 for MJPEG encoding, use -thread_type slice "
131			"or a constant quantizer if you want to use multiple cpu cores\n");
132			avctx->thread_count = 1;
133			}
134	✓✓	354	if( avctx->thread_count > 1
135	✗✓	3	&& avctx->codec_id == AV_CODEC_ID_MJPEG
136			&& !(avctx->flags & AV_CODEC_FLAG_QSCALE))
137			av_log(avctx, AV_LOG_WARNING,
138			"MJPEG CBR encoding works badly with frame multi-threading, consider "
139			"using -threads 1, -thread_type slice or a constant quantizer.\n");
140
141	✓✓	354	if (avctx->codec_id == AV_CODEC_ID_HUFFYUV \|\|
142	✓✓	342	avctx->codec_id == AV_CODEC_ID_FFVHUFF) {
143		32	int warn = 0;
144		32	int context_model = 0;
145		32	AVDictionaryEntry *con = av_dict_get(options, "context", NULL, AV_DICT_MATCH_CASE);
146
147	✗✓✗✗	32	if (con && con->value)
148			context_model = atoi(con->value);
149
150	✗✓	32	if (avctx->flags & AV_CODEC_FLAG_PASS1)
151			warn = 1;
152	✗✓	32	else if(context_model > 0) {
153			AVDictionaryEntry *t = av_dict_get(options, "non_deterministic",
154			NULL, AV_DICT_MATCH_CASE);
155			warn = !t \|\| !t->value \|\| !atoi(t->value) ? 1 : 0;
156			}
157			// huffyuv does not support these with multiple frame threads currently
158	✗✓	32	if (warn) {
159			av_log(avctx, AV_LOG_WARNING,
160			"Forcing thread count to 1 for huffyuv encoding with first pass or context 1\n");
161			avctx->thread_count = 1;
162			}
163			}
164
165	✓✓	354	if(!avctx->thread_count) {
166		15	avctx->thread_count = av_cpu_count();
167		15	avctx->thread_count = FFMIN(avctx->thread_count, MAX_THREADS);
168			}
169
170	✓✓	354	if(avctx->thread_count <= 1)
171		336	return 0;
172
173	✗✓	18	if(avctx->thread_count > MAX_THREADS)
174			return AVERROR(EINVAL);
175
176	✗✓	18	av_assert0(!avctx->internal->frame_thread_encoder);
177		18	c = avctx->internal->frame_thread_encoder = av_mallocz(sizeof(ThreadContext));
178	✗✓	18	if(!c)
179			return AVERROR(ENOMEM);
180
181		18	c->parent_avctx = avctx;
182
183		18	c->task_fifo = av_fifo_alloc_array(BUFFER_SIZE, sizeof(Task));
184	✗✓	18	if(!c->task_fifo)
185			goto fail;
186
187		18	pthread_mutex_init(&c->task_fifo_mutex, NULL);
188		18	pthread_mutex_init(&c->finished_task_mutex, NULL);
189		18	pthread_mutex_init(&c->buffer_mutex, NULL);
190		18	pthread_cond_init(&c->task_fifo_cond, NULL);
191		18	pthread_cond_init(&c->finished_task_cond, NULL);
192		18	atomic_init(&c->exit, 0);
193
194	✓✓	150	for(i=0; i<avctx->thread_count ; i++){
195		132	AVDictionary *tmp = NULL;
196			int ret;
197			void *tmpv;
198		132	AVCodecContext *thread_avctx = avcodec_alloc_context3(avctx->codec);
199	✗✓	132	if(!thread_avctx)
200			goto fail;
201		132	tmpv = thread_avctx->priv_data;
202		132	thread_avctx = avctx;
203		132	ret = av_opt_copy(thread_avctx, avctx);
204	✗✓	132	if (ret < 0)
205			goto fail;
206		132	thread_avctx->priv_data = tmpv;
207		132	thread_avctx->internal = NULL;
208	✓✗	132	if (avctx->codec->priv_class) {
209		132	int ret = av_opt_copy(thread_avctx->priv_data, avctx->priv_data);
210	✗✓	132	if (ret < 0)
211			goto fail;
212			} else if (avctx->codec->priv_data_size) {
213			memcpy(thread_avctx->priv_data, avctx->priv_data, avctx->codec->priv_data_size);
214			}
215		132	thread_avctx->thread_count = 1;
216		132	thread_avctx->active_thread_type &= ~FF_THREAD_FRAME;
217
218		132	av_dict_copy(&tmp, options, 0);
219		132	av_dict_set(&tmp, "threads", "1", 0);
220	✗✓	132	if(avcodec_open2(thread_avctx, avctx->codec, &tmp) < 0) {
221			av_dict_free(&tmp);
222			goto fail;
223			}
224		132	av_dict_free(&tmp);
225	✗✓	132	av_assert0(!thread_avctx->internal->frame_thread_encoder);
226		132	thread_avctx->internal->frame_thread_encoder = c;
227	✗✓	132	if(pthread_create(&c->worker[i], NULL, worker, thread_avctx)) {
228			goto fail;
229			}
230			}
231
232		18	avctx->active_thread_type = FF_THREAD_FRAME;
233
234		18	return 0;
235			fail:
236			avctx->thread_count = i;
237			av_log(avctx, AV_LOG_ERROR, "ff_frame_thread_encoder_init failed\n");
238			ff_frame_thread_encoder_free(avctx);
239			return -1;
240			}
241
242		18	void ff_frame_thread_encoder_free(AVCodecContext *avctx){
243			int i;
244		18	ThreadContext *c= avctx->internal->frame_thread_encoder;
245
246		18	pthread_mutex_lock(&c->task_fifo_mutex);
247		18	atomic_store(&c->exit, 1);
248		18	pthread_cond_broadcast(&c->task_fifo_cond);
249		18	pthread_mutex_unlock(&c->task_fifo_mutex);
250
251	✓✓	150	for (i=0; i<avctx->thread_count; i++) {
252		132	pthread_join(c->worker[i], NULL);
253			}
254
255	✗✓	18	while (av_fifo_size(c->task_fifo) > 0) {
256			Task task;
257			AVFrame *frame;
258			av_fifo_generic_read(c->task_fifo, &task, sizeof(task), NULL);
259			frame = task.indata;
260			av_frame_free(&frame);
261			task.indata = NULL;
262			}
263
264	✓✓	2322	for (i=0; i<BUFFER_SIZE; i++) {
265	✗✓	2304	if (c->finished_tasks[i].outdata != NULL) {
266			AVPacket *pkt = c->finished_tasks[i].outdata;
267			av_packet_free(&pkt);
268			c->finished_tasks[i].outdata = NULL;
269			}
270			}
271
272		18	pthread_mutex_destroy(&c->task_fifo_mutex);
273		18	pthread_mutex_destroy(&c->finished_task_mutex);
274		18	pthread_mutex_destroy(&c->buffer_mutex);
275		18	pthread_cond_destroy(&c->task_fifo_cond);
276		18	pthread_cond_destroy(&c->finished_task_cond);
277		18	av_fifo_freep(&c->task_fifo);
278		18	av_freep(&avctx->internal->frame_thread_encoder);
279		18	}
280
281		870	int ff_thread_video_encode_frame(AVCodecContext avctx, AVPacket pkt, const AVFrame frame, int got_packet_ptr){
282		870	ThreadContext *c = avctx->internal->frame_thread_encoder;
283			Task task;
284			int ret;
285
286			av_assert1(!*got_packet_ptr);
287
288	✓✓	870	if(frame){
289		765	AVFrame *new = av_frame_alloc();
290	✗✓	765	if(!new)
291			return AVERROR(ENOMEM);
292		765	ret = av_frame_ref(new, frame);
293	✗✓	765	if(ret < 0) {
294			av_frame_free(&new);
295			return ret;
296			}
297
298		765	task.index = c->task_index;
299		765	task.indata = (void*)new;
300		765	pthread_mutex_lock(&c->task_fifo_mutex);
301		765	av_fifo_generic_write(c->task_fifo, &task, sizeof(task), NULL);
302		765	pthread_cond_signal(&c->task_fifo_cond);
303		765	pthread_mutex_unlock(&c->task_fifo_mutex);
304
305		765	c->task_index = (c->task_index+1) % BUFFER_SIZE;
306			}
307
308		870	pthread_mutex_lock(&c->finished_task_mutex);
309	✓✓✓✓	870	if (c->task_index == c->finished_task_index \|\|
310	✓✓	765	(frame && !c->finished_tasks[c->finished_task_index].outdata &&
311	✓✓	131	(c->task_index - c->finished_task_index) % BUFFER_SIZE <= avctx->thread_count)) {
312		105	pthread_mutex_unlock(&c->finished_task_mutex);
313		105	return 0;
314			}
315
316	✓✓	923	while (!c->finished_tasks[c->finished_task_index].outdata) {
317		158	pthread_cond_wait(&c->finished_task_cond, &c->finished_task_mutex);
318			}
319		765	task = c->finished_tasks[c->finished_task_index];
320		765	pkt = (AVPacket*)(task.outdata);
321	✓✗	765	if(pkt->data)
322		765	*got_packet_ptr = 1;
323		765	av_freep(&c->finished_tasks[c->finished_task_index].outdata);
324		765	c->finished_task_index = (c->finished_task_index+1) % BUFFER_SIZE;
325		765	pthread_mutex_unlock(&c->finished_task_mutex);
326
327		765	return task.return_code;
328			}