Line | Branch | Exec | Source |
---|---|---|---|
1 | /* | ||
2 | * This file is part of FFmpeg. | ||
3 | * | ||
4 | * FFmpeg is free software; you can redistribute it and/or | ||
5 | * modify it under the terms of the GNU Lesser General Public | ||
6 | * License as published by the Free Software Foundation; either | ||
7 | * version 2.1 of the License, or (at your option) any later version. | ||
8 | * | ||
9 | * FFmpeg is distributed in the hope that it will be useful, | ||
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
12 | * Lesser General Public License for more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU Lesser General Public | ||
15 | * License along with FFmpeg; if not, write to the Free Software | ||
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
17 | */ | ||
18 | |||
19 | /** | ||
20 | * @file | ||
21 | * Frame multithreading support functions | ||
22 | * @see doc/multithreading.txt | ||
23 | */ | ||
24 | |||
25 | #include <stdatomic.h> | ||
26 | |||
27 | #include "avcodec.h" | ||
28 | #include "avcodec_internal.h" | ||
29 | #include "codec_desc.h" | ||
30 | #include "codec_internal.h" | ||
31 | #include "decode.h" | ||
32 | #include "hwaccel_internal.h" | ||
33 | #include "hwconfig.h" | ||
34 | #include "internal.h" | ||
35 | #include "packet_internal.h" | ||
36 | #include "pthread_internal.h" | ||
37 | #include "libavutil/refstruct.h" | ||
38 | #include "thread.h" | ||
39 | #include "threadframe.h" | ||
40 | #include "version_major.h" | ||
41 | |||
42 | #include "libavutil/avassert.h" | ||
43 | #include "libavutil/buffer.h" | ||
44 | #include "libavutil/common.h" | ||
45 | #include "libavutil/cpu.h" | ||
46 | #include "libavutil/frame.h" | ||
47 | #include "libavutil/internal.h" | ||
48 | #include "libavutil/log.h" | ||
49 | #include "libavutil/mem.h" | ||
50 | #include "libavutil/opt.h" | ||
51 | #include "libavutil/thread.h" | ||
52 | |||
53 | enum { | ||
54 | /// Set when the thread is awaiting a packet. | ||
55 | STATE_INPUT_READY, | ||
56 | /// Set before the codec has called ff_thread_finish_setup(). | ||
57 | STATE_SETTING_UP, | ||
58 | /// Set after the codec has called ff_thread_finish_setup(). | ||
59 | STATE_SETUP_FINISHED, | ||
60 | }; | ||
61 | |||
62 | enum { | ||
63 | UNINITIALIZED, ///< Thread has not been created, AVCodec->close mustn't be called | ||
64 | NEEDS_CLOSE, ///< FFCodec->close needs to be called | ||
65 | INITIALIZED, ///< Thread has been properly set up | ||
66 | }; | ||
67 | |||
68 | typedef struct DecodedFrames { | ||
69 | AVFrame **f; | ||
70 | size_t nb_f; | ||
71 | size_t nb_f_allocated; | ||
72 | } DecodedFrames; | ||
73 | |||
74 | typedef struct ThreadFrameProgress { | ||
75 | atomic_int progress[2]; | ||
76 | } ThreadFrameProgress; | ||
77 | |||
78 | /** | ||
79 | * Context used by codec threads and stored in their AVCodecInternal thread_ctx. | ||
80 | */ | ||
81 | typedef struct PerThreadContext { | ||
82 | struct FrameThreadContext *parent; | ||
83 | |||
84 | pthread_t thread; | ||
85 | int thread_init; | ||
86 | unsigned pthread_init_cnt;///< Number of successfully initialized mutexes/conditions | ||
87 | pthread_cond_t input_cond; ///< Used to wait for a new packet from the main thread. | ||
88 | pthread_cond_t progress_cond; ///< Used by child threads to wait for progress to change. | ||
89 | pthread_cond_t output_cond; ///< Used by the main thread to wait for frames to finish. | ||
90 | |||
91 | pthread_mutex_t mutex; ///< Mutex used to protect the contents of the PerThreadContext. | ||
92 | pthread_mutex_t progress_mutex; ///< Mutex used to protect frame progress values and progress_cond. | ||
93 | |||
94 | AVCodecContext *avctx; ///< Context used to decode packets passed to this thread. | ||
95 | |||
96 | AVPacket *avpkt; ///< Input packet (for decoding) or output (for encoding). | ||
97 | |||
98 | /** | ||
99 | * Decoded frames from a single decode iteration. | ||
100 | */ | ||
101 | DecodedFrames df; | ||
102 | int result; ///< The result of the last codec decode/encode() call. | ||
103 | |||
104 | atomic_int state; | ||
105 | |||
106 | int die; ///< Set when the thread should exit. | ||
107 | |||
108 | int hwaccel_serializing; | ||
109 | int async_serializing; | ||
110 | |||
111 | // set to 1 in ff_thread_finish_setup() when a threadsafe hwaccel is used; | ||
112 | // cannot check hwaccel caps directly, because | ||
113 | // worked threads clear hwaccel state for thread-unsafe hwaccels | ||
114 | // after each decode call | ||
115 | int hwaccel_threadsafe; | ||
116 | |||
117 | atomic_int debug_threads; ///< Set if the FF_DEBUG_THREADS option is set. | ||
118 | } PerThreadContext; | ||
119 | |||
120 | /** | ||
121 | * Context stored in the client AVCodecInternal thread_ctx. | ||
122 | */ | ||
123 | typedef struct FrameThreadContext { | ||
124 | PerThreadContext *threads; ///< The contexts for each thread. | ||
125 | PerThreadContext *prev_thread; ///< The last thread submit_packet() was called on. | ||
126 | |||
127 | unsigned pthread_init_cnt; ///< Number of successfully initialized mutexes/conditions | ||
128 | pthread_mutex_t buffer_mutex; ///< Mutex used to protect get/release_buffer(). | ||
129 | /** | ||
130 | * This lock is used for ensuring threads run in serial when thread-unsafe | ||
131 | * hwaccel is used. | ||
132 | */ | ||
133 | pthread_mutex_t hwaccel_mutex; | ||
134 | pthread_mutex_t async_mutex; | ||
135 | pthread_cond_t async_cond; | ||
136 | int async_lock; | ||
137 | |||
138 | DecodedFrames df; | ||
139 | int result; | ||
140 | |||
141 | /** | ||
142 | * Packet to be submitted to the next thread for decoding. | ||
143 | */ | ||
144 | AVPacket *next_pkt; | ||
145 | |||
146 | int next_decoding; ///< The next context to submit a packet to. | ||
147 | int next_finished; ///< The next context to return output from. | ||
148 | |||
149 | /* hwaccel state for thread-unsafe hwaccels is temporarily stored here in | ||
150 | * order to transfer its ownership to the next decoding thread without the | ||
151 | * need for extra synchronization */ | ||
152 | const AVHWAccel *stash_hwaccel; | ||
153 | void *stash_hwaccel_context; | ||
154 | void *stash_hwaccel_priv; | ||
155 | } FrameThreadContext; | ||
156 | |||
157 | 1818 | static int hwaccel_serial(const AVCodecContext *avctx) | |
158 | { | ||
159 |
1/4✗ Branch 0 not taken.
✓ Branch 1 taken 1818 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
|
1818 | return avctx->hwaccel && !(ffhwaccel(avctx->hwaccel)->caps_internal & HWACCEL_CAP_THREAD_SAFE); |
160 | } | ||
161 | |||
162 | 842 | static void async_lock(FrameThreadContext *fctx) | |
163 | { | ||
164 | 842 | pthread_mutex_lock(&fctx->async_mutex); | |
165 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 842 times.
|
842 | while (fctx->async_lock) |
166 | ✗ | pthread_cond_wait(&fctx->async_cond, &fctx->async_mutex); | |
167 | 842 | fctx->async_lock = 1; | |
168 | 842 | pthread_mutex_unlock(&fctx->async_mutex); | |
169 | 842 | } | |
170 | |||
171 | 842 | static void async_unlock(FrameThreadContext *fctx) | |
172 | { | ||
173 | 842 | pthread_mutex_lock(&fctx->async_mutex); | |
174 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 842 times.
|
842 | av_assert0(fctx->async_lock); |
175 | 842 | fctx->async_lock = 0; | |
176 | 842 | pthread_cond_broadcast(&fctx->async_cond); | |
177 | 842 | pthread_mutex_unlock(&fctx->async_mutex); | |
178 | 842 | } | |
179 | |||
180 | 76 | static void thread_set_name(PerThreadContext *p) | |
181 | { | ||
182 | 76 | AVCodecContext *avctx = p->avctx; | |
183 | 76 | int idx = p - p->parent->threads; | |
184 | char name[16]; | ||
185 | |||
186 | 76 | snprintf(name, sizeof(name), "av:%.7s:df%d", avctx->codec->name, idx); | |
187 | |||
188 | 76 | ff_thread_setname(name); | |
189 | 76 | } | |
190 | |||
191 | // get a free frame to decode into | ||
192 | 1144 | static AVFrame *decoded_frames_get_free(DecodedFrames *df) | |
193 | { | ||
194 |
2/2✓ Branch 0 taken 163 times.
✓ Branch 1 taken 981 times.
|
1144 | if (df->nb_f == df->nb_f_allocated) { |
195 | 163 | AVFrame **tmp = av_realloc_array(df->f, df->nb_f + 1, | |
196 | sizeof(*df->f)); | ||
197 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 163 times.
|
163 | if (!tmp) |
198 | ✗ | return NULL; | |
199 | 163 | df->f = tmp; | |
200 | |||
201 | 163 | df->f[df->nb_f] = av_frame_alloc(); | |
202 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 163 times.
|
163 | if (!df->f[df->nb_f]) |
203 | ✗ | return NULL; | |
204 | |||
205 | 163 | df->nb_f_allocated++; | |
206 | } | ||
207 | |||
208 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 1144 times.
|
1144 | av_assert0(!df->f[df->nb_f]->buf[0]); |
209 | |||
210 | 1144 | return df->f[df->nb_f]; | |
211 | } | ||
212 | |||
213 | 537 | static void decoded_frames_pop(DecodedFrames *df, AVFrame *dst) | |
214 | { | ||
215 | 537 | AVFrame *tmp_frame = df->f[0]; | |
216 | 537 | av_frame_move_ref(dst, tmp_frame); | |
217 | 537 | memmove(df->f, df->f + 1, (df->nb_f - 1) * sizeof(*df->f)); | |
218 | 537 | df->f[--df->nb_f] = tmp_frame; | |
219 | 537 | } | |
220 | |||
221 | ✗ | static void decoded_frames_flush(DecodedFrames *df) | |
222 | { | ||
223 | ✗ | for (size_t i = 0; i < df->nb_f; i++) | |
224 | ✗ | av_frame_unref(df->f[i]); | |
225 | ✗ | df->nb_f = 0; | |
226 | ✗ | } | |
227 | |||
228 | 86 | static void decoded_frames_free(DecodedFrames *df) | |
229 | { | ||
230 |
2/2✓ Branch 0 taken 163 times.
✓ Branch 1 taken 86 times.
|
249 | for (size_t i = 0; i < df->nb_f_allocated; i++) |
231 | 163 | av_frame_free(&df->f[i]); | |
232 | 86 | av_freep(&df->f); | |
233 | 86 | df->nb_f = 0; | |
234 | 86 | df->nb_f_allocated = 0; | |
235 | 86 | } | |
236 | |||
237 | /** | ||
238 | * Codec worker thread. | ||
239 | * | ||
240 | * Automatically calls ff_thread_finish_setup() if the codec does | ||
241 | * not provide an update_thread_context method, or if the codec returns | ||
242 | * before calling it. | ||
243 | */ | ||
244 | 76 | static attribute_align_arg void *frame_worker_thread(void *arg) | |
245 | { | ||
246 | 76 | PerThreadContext *p = arg; | |
247 | 76 | AVCodecContext *avctx = p->avctx; | |
248 | 76 | const FFCodec *codec = ffcodec(avctx->codec); | |
249 | |||
250 | 76 | thread_set_name(p); | |
251 | |||
252 | 76 | pthread_mutex_lock(&p->mutex); | |
253 | 606 | while (1) { | |
254 | int ret; | ||
255 | |||
256 |
4/4✓ Branch 0 taken 751 times.
✓ Branch 1 taken 606 times.
✓ Branch 2 taken 675 times.
✓ Branch 3 taken 76 times.
|
1357 | while (atomic_load(&p->state) == STATE_INPUT_READY && !p->die) |
257 | 675 | pthread_cond_wait(&p->input_cond, &p->mutex); | |
258 | |||
259 |
2/2✓ Branch 0 taken 76 times.
✓ Branch 1 taken 606 times.
|
682 | if (p->die) break; |
260 | |||
261 |
2/2✓ Branch 0 taken 494 times.
✓ Branch 1 taken 112 times.
|
606 | if (!codec->update_thread_context) |
262 | 494 | ff_thread_finish_setup(avctx); | |
263 | |||
264 | /* If a decoder supports hwaccel, then it must call ff_get_format(). | ||
265 | * Since that call must happen before ff_thread_finish_setup(), the | ||
266 | * decoder is required to implement update_thread_context() and call | ||
267 | * ff_thread_finish_setup() manually. Therefore the above | ||
268 | * ff_thread_finish_setup() call did not happen and hwaccel_serializing | ||
269 | * cannot be true here. */ | ||
270 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 606 times.
|
606 | av_assert0(!p->hwaccel_serializing); |
271 | |||
272 | /* if the previous thread uses thread-unsafe hwaccel then we take the | ||
273 | * lock to ensure the threads don't run concurrently */ | ||
274 |
1/2✗ Branch 1 not taken.
✓ Branch 2 taken 606 times.
|
606 | if (hwaccel_serial(avctx)) { |
275 | ✗ | pthread_mutex_lock(&p->parent->hwaccel_mutex); | |
276 | ✗ | p->hwaccel_serializing = 1; | |
277 | } | ||
278 | |||
279 | 606 | ret = 0; | |
280 |
2/2✓ Branch 0 taken 1144 times.
✓ Branch 1 taken 606 times.
|
1750 | while (ret >= 0) { |
281 | AVFrame *frame; | ||
282 | |||
283 | /* get the frame which will store the output */ | ||
284 | 1144 | frame = decoded_frames_get_free(&p->df); | |
285 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 1144 times.
|
1144 | if (!frame) { |
286 | ✗ | p->result = AVERROR(ENOMEM); | |
287 | ✗ | goto alloc_fail; | |
288 | } | ||
289 | |||
290 | /* do the actual decoding */ | ||
291 | 1144 | ret = ff_decode_receive_frame_internal(avctx, frame); | |
292 |
2/2✓ Branch 0 taken 538 times.
✓ Branch 1 taken 606 times.
|
1144 | if (ret == 0) |
293 | 538 | p->df.nb_f++; | |
294 |
2/4✓ Branch 0 taken 606 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 606 times.
|
606 | else if (ret < 0 && frame->buf[0]) |
295 | ✗ | av_frame_unref(frame); | |
296 | |||
297 |
2/2✓ Branch 0 taken 606 times.
✓ Branch 1 taken 538 times.
|
1144 | p->result = (ret == AVERROR(EAGAIN)) ? 0 : ret; |
298 | } | ||
299 | |||
300 |
2/2✓ Branch 0 taken 578 times.
✓ Branch 1 taken 28 times.
|
606 | if (atomic_load(&p->state) == STATE_SETTING_UP) |
301 | 28 | ff_thread_finish_setup(avctx); | |
302 | |||
303 | 578 | alloc_fail: | |
304 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 606 times.
|
606 | if (p->hwaccel_serializing) { |
305 | /* wipe hwaccel state for thread-unsafe hwaccels to avoid stale | ||
306 | * pointers lying around; | ||
307 | * the state was transferred to FrameThreadContext in | ||
308 | * ff_thread_finish_setup(), so nothing is leaked */ | ||
309 | ✗ | avctx->hwaccel = NULL; | |
310 | ✗ | avctx->hwaccel_context = NULL; | |
311 | ✗ | avctx->internal->hwaccel_priv_data = NULL; | |
312 | |||
313 | ✗ | p->hwaccel_serializing = 0; | |
314 | ✗ | pthread_mutex_unlock(&p->parent->hwaccel_mutex); | |
315 | } | ||
316 |
1/4✗ Branch 0 not taken.
✓ Branch 1 taken 606 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
|
606 | av_assert0(!avctx->hwaccel || |
317 | (ffhwaccel(avctx->hwaccel)->caps_internal & HWACCEL_CAP_THREAD_SAFE)); | ||
318 | |||
319 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 606 times.
|
606 | if (p->async_serializing) { |
320 | ✗ | p->async_serializing = 0; | |
321 | |||
322 | ✗ | async_unlock(p->parent); | |
323 | } | ||
324 | |||
325 | 606 | pthread_mutex_lock(&p->progress_mutex); | |
326 | |||
327 | 606 | atomic_store(&p->state, STATE_INPUT_READY); | |
328 | |||
329 | 606 | pthread_cond_broadcast(&p->progress_cond); | |
330 | 606 | pthread_cond_signal(&p->output_cond); | |
331 | 606 | pthread_mutex_unlock(&p->progress_mutex); | |
332 | } | ||
333 | 76 | pthread_mutex_unlock(&p->mutex); | |
334 | |||
335 | 76 | return NULL; | |
336 | } | ||
337 | |||
338 | /** | ||
339 | * Update the next thread's AVCodecContext with values from the reference thread's context. | ||
340 | * | ||
341 | * @param dst The destination context. | ||
342 | * @param src The source context. | ||
343 | * @param for_user 0 if the destination is a codec thread, 1 if the destination is the user's thread | ||
344 | * @return 0 on success, negative error code on failure | ||
345 | */ | ||
346 | 1111 | static int update_context_from_thread(AVCodecContext *dst, const AVCodecContext *src, int for_user) | |
347 | { | ||
348 | 1111 | const FFCodec *const codec = ffcodec(dst->codec); | |
349 | 1111 | int err = 0; | |
350 | |||
351 |
5/6✓ Branch 0 taken 1111 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 555 times.
✓ Branch 3 taken 556 times.
✓ Branch 4 taken 108 times.
✓ Branch 5 taken 447 times.
|
1111 | if (dst != src && (for_user || codec->update_thread_context)) { |
352 | 664 | dst->time_base = src->time_base; | |
353 | 664 | dst->framerate = src->framerate; | |
354 | 664 | dst->width = src->width; | |
355 | 664 | dst->height = src->height; | |
356 | 664 | dst->pix_fmt = src->pix_fmt; | |
357 | 664 | dst->sw_pix_fmt = src->sw_pix_fmt; | |
358 | |||
359 | 664 | dst->coded_width = src->coded_width; | |
360 | 664 | dst->coded_height = src->coded_height; | |
361 | |||
362 | 664 | dst->has_b_frames = src->has_b_frames; | |
363 | 664 | dst->idct_algo = src->idct_algo; | |
364 | #if FF_API_CODEC_PROPS | ||
365 | FF_DISABLE_DEPRECATION_WARNINGS | ||
366 | 664 | dst->properties = src->properties; | |
367 | FF_ENABLE_DEPRECATION_WARNINGS | ||
368 | #endif | ||
369 | |||
370 | 664 | dst->bits_per_coded_sample = src->bits_per_coded_sample; | |
371 | 664 | dst->sample_aspect_ratio = src->sample_aspect_ratio; | |
372 | |||
373 | 664 | dst->profile = src->profile; | |
374 | 664 | dst->level = src->level; | |
375 | |||
376 | 664 | dst->bits_per_raw_sample = src->bits_per_raw_sample; | |
377 | 664 | dst->color_primaries = src->color_primaries; | |
378 | |||
379 | 664 | dst->color_trc = src->color_trc; | |
380 | 664 | dst->colorspace = src->colorspace; | |
381 | 664 | dst->color_range = src->color_range; | |
382 | 664 | dst->chroma_sample_location = src->chroma_sample_location; | |
383 | |||
384 | 664 | dst->sample_rate = src->sample_rate; | |
385 | 664 | dst->sample_fmt = src->sample_fmt; | |
386 | 664 | err = av_channel_layout_copy(&dst->ch_layout, &src->ch_layout); | |
387 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 664 times.
|
664 | if (err < 0) |
388 | ✗ | return err; | |
389 | |||
390 |
1/2✓ Branch 0 taken 664 times.
✗ Branch 1 not taken.
|
664 | if (!!dst->hw_frames_ctx != !!src->hw_frames_ctx || |
391 |
1/4✗ Branch 0 not taken.
✓ Branch 1 taken 664 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
|
664 | (dst->hw_frames_ctx && dst->hw_frames_ctx->data != src->hw_frames_ctx->data)) { |
392 | ✗ | av_buffer_unref(&dst->hw_frames_ctx); | |
393 | |||
394 | ✗ | if (src->hw_frames_ctx) { | |
395 | ✗ | dst->hw_frames_ctx = av_buffer_ref(src->hw_frames_ctx); | |
396 | ✗ | if (!dst->hw_frames_ctx) | |
397 | ✗ | return AVERROR(ENOMEM); | |
398 | } | ||
399 | } | ||
400 | |||
401 | 664 | dst->hwaccel_flags = src->hwaccel_flags; | |
402 | |||
403 | 664 | av_refstruct_replace(&dst->internal->pool, src->internal->pool); | |
404 | 664 | ff_decode_internal_sync(dst, src); | |
405 | } | ||
406 | |||
407 |
2/2✓ Branch 0 taken 556 times.
✓ Branch 1 taken 555 times.
|
1111 | if (for_user) { |
408 |
2/2✓ Branch 0 taken 58 times.
✓ Branch 1 taken 498 times.
|
556 | if (codec->update_thread_context_for_user) |
409 | 58 | err = codec->update_thread_context_for_user(dst, src); | |
410 | } else { | ||
411 | 555 | const PerThreadContext *p_src = src->internal->thread_ctx; | |
412 | 555 | PerThreadContext *p_dst = dst->internal->thread_ctx; | |
413 | |||
414 |
2/2✓ Branch 0 taken 108 times.
✓ Branch 1 taken 447 times.
|
555 | if (codec->update_thread_context) { |
415 | 108 | err = codec->update_thread_context(dst, src); | |
416 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 108 times.
|
108 | if (err < 0) |
417 | ✗ | return err; | |
418 | } | ||
419 | |||
420 | // reset dst hwaccel state if needed | ||
421 |
3/6✓ Branch 0 taken 555 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 555 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 555 times.
|
555 | av_assert0(p_dst->hwaccel_threadsafe || |
422 | (!dst->hwaccel && !dst->internal->hwaccel_priv_data)); | ||
423 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 555 times.
|
555 | if (p_dst->hwaccel_threadsafe && |
424 | ✗ | (!p_src->hwaccel_threadsafe || dst->hwaccel != src->hwaccel)) { | |
425 | ✗ | ff_hwaccel_uninit(dst); | |
426 | ✗ | p_dst->hwaccel_threadsafe = 0; | |
427 | } | ||
428 | |||
429 | // propagate hwaccel state for threadsafe hwaccels | ||
430 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 555 times.
|
555 | if (p_src->hwaccel_threadsafe) { |
431 | ✗ | const FFHWAccel *hwaccel = ffhwaccel(src->hwaccel); | |
432 | ✗ | if (!dst->hwaccel) { | |
433 | ✗ | if (hwaccel->priv_data_size) { | |
434 | ✗ | av_assert0(hwaccel->update_thread_context); | |
435 | |||
436 | ✗ | dst->internal->hwaccel_priv_data = | |
437 | ✗ | av_mallocz(hwaccel->priv_data_size); | |
438 | ✗ | if (!dst->internal->hwaccel_priv_data) | |
439 | ✗ | return AVERROR(ENOMEM); | |
440 | } | ||
441 | ✗ | dst->hwaccel = src->hwaccel; | |
442 | } | ||
443 | ✗ | av_assert0(dst->hwaccel == src->hwaccel); | |
444 | |||
445 | ✗ | if (hwaccel->update_thread_context) { | |
446 | ✗ | err = hwaccel->update_thread_context(dst, src); | |
447 | ✗ | if (err < 0) { | |
448 | ✗ | av_log(dst, AV_LOG_ERROR, "Error propagating hwaccel state\n"); | |
449 | ✗ | ff_hwaccel_uninit(dst); | |
450 | ✗ | return err; | |
451 | } | ||
452 | } | ||
453 | ✗ | p_dst->hwaccel_threadsafe = 1; | |
454 | } | ||
455 | } | ||
456 | |||
457 | 1111 | return err; | |
458 | } | ||
459 | |||
460 | /** | ||
461 | * Update the next thread's AVCodecContext with values set by the user. | ||
462 | * | ||
463 | * @param dst The destination context. | ||
464 | * @param src The source context. | ||
465 | * @return 0 on success, negative error code on failure | ||
466 | */ | ||
467 | 606 | static int update_context_from_user(AVCodecContext *dst, const AVCodecContext *src) | |
468 | { | ||
469 | int err; | ||
470 | |||
471 | 606 | dst->flags = src->flags; | |
472 | |||
473 | 606 | dst->draw_horiz_band= src->draw_horiz_band; | |
474 | 606 | dst->get_buffer2 = src->get_buffer2; | |
475 | |||
476 | 606 | dst->opaque = src->opaque; | |
477 | 606 | dst->debug = src->debug; | |
478 | |||
479 | 606 | dst->slice_flags = src->slice_flags; | |
480 | 606 | dst->flags2 = src->flags2; | |
481 | 606 | dst->export_side_data = src->export_side_data; | |
482 | |||
483 | 606 | dst->skip_loop_filter = src->skip_loop_filter; | |
484 | 606 | dst->skip_idct = src->skip_idct; | |
485 | 606 | dst->skip_frame = src->skip_frame; | |
486 | |||
487 | 606 | dst->frame_num = src->frame_num; | |
488 | |||
489 | 606 | av_packet_unref(dst->internal->last_pkt_props); | |
490 | 606 | err = av_packet_copy_props(dst->internal->last_pkt_props, src->internal->last_pkt_props); | |
491 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 606 times.
|
606 | if (err < 0) |
492 | ✗ | return err; | |
493 | |||
494 | 606 | return 0; | |
495 | } | ||
496 | |||
497 | 606 | static int submit_packet(PerThreadContext *p, AVCodecContext *user_avctx, | |
498 | AVPacket *in_pkt) | ||
499 | { | ||
500 | 606 | FrameThreadContext *fctx = p->parent; | |
501 | 606 | PerThreadContext *prev_thread = fctx->prev_thread; | |
502 | 606 | const AVCodec *codec = p->avctx->codec; | |
503 | int ret; | ||
504 | |||
505 | 606 | pthread_mutex_lock(&p->mutex); | |
506 | |||
507 | 606 | av_packet_unref(p->avpkt); | |
508 | 606 | av_packet_move_ref(p->avpkt, in_pkt); | |
509 | |||
510 |
3/4✓ Branch 0 taken 68 times.
✓ Branch 1 taken 538 times.
✓ Branch 2 taken 68 times.
✗ Branch 3 not taken.
|
606 | if (AVPACKET_IS_EMPTY(p->avpkt)) |
511 | 68 | p->avctx->internal->draining = 1; | |
512 | |||
513 | 606 | ret = update_context_from_user(p->avctx, user_avctx); | |
514 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 606 times.
|
606 | if (ret) { |
515 | ✗ | pthread_mutex_unlock(&p->mutex); | |
516 | ✗ | return ret; | |
517 | } | ||
518 | 606 | atomic_store_explicit(&p->debug_threads, | |
519 | (p->avctx->debug & FF_DEBUG_THREADS) != 0, | ||
520 | memory_order_relaxed); | ||
521 | |||
522 |
2/2✓ Branch 0 taken 596 times.
✓ Branch 1 taken 10 times.
|
606 | if (prev_thread) { |
523 |
2/2✓ Branch 0 taken 322 times.
✓ Branch 1 taken 274 times.
|
596 | if (atomic_load(&prev_thread->state) == STATE_SETTING_UP) { |
524 | 322 | pthread_mutex_lock(&prev_thread->progress_mutex); | |
525 |
2/2✓ Branch 0 taken 322 times.
✓ Branch 1 taken 322 times.
|
644 | while (atomic_load(&prev_thread->state) == STATE_SETTING_UP) |
526 | 322 | pthread_cond_wait(&prev_thread->progress_cond, &prev_thread->progress_mutex); | |
527 | 322 | pthread_mutex_unlock(&prev_thread->progress_mutex); | |
528 | } | ||
529 | |||
530 | /* codecs without delay might not be prepared to be called repeatedly here during | ||
531 | * flushing (vp3/theora), and also don't need to be, since from this point on, they | ||
532 | * will always return EOF anyway */ | ||
533 |
2/2✓ Branch 0 taken 68 times.
✓ Branch 1 taken 528 times.
|
596 | if (!p->avctx->internal->draining || |
534 |
2/2✓ Branch 0 taken 27 times.
✓ Branch 1 taken 41 times.
|
68 | (codec->capabilities & AV_CODEC_CAP_DELAY)) { |
535 | 555 | ret = update_context_from_thread(p->avctx, prev_thread->avctx, 0); | |
536 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 555 times.
|
555 | if (ret) { |
537 | ✗ | pthread_mutex_unlock(&p->mutex); | |
538 | ✗ | return ret; | |
539 | } | ||
540 | } | ||
541 | } | ||
542 | |||
543 | /* transfer the stashed hwaccel state, if any */ | ||
544 |
1/4✗ Branch 0 not taken.
✓ Branch 1 taken 606 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
|
606 | av_assert0(!p->avctx->hwaccel || p->hwaccel_threadsafe); |
545 |
1/2✓ Branch 0 taken 606 times.
✗ Branch 1 not taken.
|
606 | if (!p->hwaccel_threadsafe) { |
546 | 606 | FFSWAP(const AVHWAccel*, p->avctx->hwaccel, fctx->stash_hwaccel); | |
547 | 606 | FFSWAP(void*, p->avctx->hwaccel_context, fctx->stash_hwaccel_context); | |
548 | 606 | FFSWAP(void*, p->avctx->internal->hwaccel_priv_data, fctx->stash_hwaccel_priv); | |
549 | } | ||
550 | |||
551 | 606 | atomic_store(&p->state, STATE_SETTING_UP); | |
552 | 606 | pthread_cond_signal(&p->input_cond); | |
553 | 606 | pthread_mutex_unlock(&p->mutex); | |
554 | |||
555 | 606 | fctx->prev_thread = p; | |
556 | 606 | fctx->next_decoding = (fctx->next_decoding + 1) % p->avctx->thread_count; | |
557 | |||
558 | 606 | return 0; | |
559 | } | ||
560 | |||
561 | 832 | int ff_thread_receive_frame(AVCodecContext *avctx, AVFrame *frame) | |
562 | { | ||
563 | 832 | FrameThreadContext *fctx = avctx->internal->thread_ctx; | |
564 | 832 | int ret = 0; | |
565 | |||
566 | /* release the async lock, permitting blocked hwaccel threads to | ||
567 | * go forward while we are in this function */ | ||
568 | 832 | async_unlock(fctx); | |
569 | |||
570 | /* submit packets to threads while there are no buffered results to return */ | ||
571 |
4/4✓ Branch 0 taken 901 times.
✓ Branch 1 taken 537 times.
✓ Branch 2 taken 892 times.
✓ Branch 3 taken 9 times.
|
1438 | while (!fctx->df.nb_f && !fctx->result) { |
572 | PerThreadContext *p; | ||
573 | |||
574 | /* get a packet to be submitted to the next thread */ | ||
575 | 892 | av_packet_unref(fctx->next_pkt); | |
576 | 892 | ret = ff_decode_get_packet(avctx, fctx->next_pkt); | |
577 |
4/4✓ Branch 0 taken 354 times.
✓ Branch 1 taken 538 times.
✓ Branch 2 taken 286 times.
✓ Branch 3 taken 68 times.
|
892 | if (ret < 0 && ret != AVERROR_EOF) |
578 | 286 | goto finish; | |
579 | |||
580 | 606 | ret = submit_packet(&fctx->threads[fctx->next_decoding], avctx, | |
581 | fctx->next_pkt); | ||
582 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 606 times.
|
606 | if (ret < 0) |
583 | ✗ | goto finish; | |
584 | |||
585 | /* do not return any frames until all threads have something to do */ | ||
586 |
2/2✓ Branch 0 taken 72 times.
✓ Branch 1 taken 534 times.
|
606 | if (fctx->next_decoding != fctx->next_finished && |
587 |
2/2✓ Branch 0 taken 60 times.
✓ Branch 1 taken 12 times.
|
72 | !avctx->internal->draining) |
588 | 60 | continue; | |
589 | |||
590 | 546 | p = &fctx->threads[fctx->next_finished]; | |
591 | 546 | fctx->next_finished = (fctx->next_finished + 1) % avctx->thread_count; | |
592 | |||
593 |
2/2✓ Branch 0 taken 141 times.
✓ Branch 1 taken 405 times.
|
546 | if (atomic_load(&p->state) != STATE_INPUT_READY) { |
594 | 141 | pthread_mutex_lock(&p->progress_mutex); | |
595 |
2/2✓ Branch 0 taken 140 times.
✓ Branch 1 taken 141 times.
|
281 | while (atomic_load_explicit(&p->state, memory_order_relaxed) != STATE_INPUT_READY) |
596 | 140 | pthread_cond_wait(&p->output_cond, &p->progress_mutex); | |
597 | 141 | pthread_mutex_unlock(&p->progress_mutex); | |
598 | } | ||
599 | |||
600 | 546 | update_context_from_thread(avctx, p->avctx, 1); | |
601 | 546 | fctx->result = p->result; | |
602 | 546 | p->result = 0; | |
603 |
2/2✓ Branch 0 taken 535 times.
✓ Branch 1 taken 11 times.
|
546 | if (p->df.nb_f) |
604 | 535 | FFSWAP(DecodedFrames, fctx->df, p->df); | |
605 | } | ||
606 | |||
607 | /* a thread may return multiple frames AND an error | ||
608 | * we first return all the frames, then the error */ | ||
609 |
2/2✓ Branch 0 taken 537 times.
✓ Branch 1 taken 9 times.
|
546 | if (fctx->df.nb_f) { |
610 | 537 | decoded_frames_pop(&fctx->df, frame); | |
611 | 537 | ret = 0; | |
612 | } else { | ||
613 | 9 | ret = fctx->result; | |
614 | 9 | fctx->result = 0; | |
615 | } | ||
616 | |||
617 | 832 | finish: | |
618 | 832 | async_lock(fctx); | |
619 | 832 | return ret; | |
620 | } | ||
621 | |||
622 | 287215 | void ff_thread_report_progress(ThreadFrame *f, int n, int field) | |
623 | { | ||
624 | PerThreadContext *p; | ||
625 |
2/2✓ Branch 0 taken 1240 times.
✓ Branch 1 taken 285975 times.
|
287215 | atomic_int *progress = f->progress ? f->progress->progress : NULL; |
626 | |||
627 |
2/2✓ Branch 0 taken 1240 times.
✓ Branch 1 taken 285975 times.
|
287215 | if (!progress || |
628 |
2/2✓ Branch 0 taken 27 times.
✓ Branch 1 taken 1213 times.
|
1240 | atomic_load_explicit(&progress[field], memory_order_relaxed) >= n) |
629 | 286002 | return; | |
630 | |||
631 | 1213 | p = f->owner[field]->internal->thread_ctx; | |
632 | |||
633 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 1213 times.
|
1213 | if (atomic_load_explicit(&p->debug_threads, memory_order_relaxed)) |
634 | ✗ | av_log(f->owner[field], AV_LOG_DEBUG, | |
635 | "%p finished %d field %d\n", progress, n, field); | ||
636 | |||
637 | 1213 | pthread_mutex_lock(&p->progress_mutex); | |
638 | |||
639 | 1213 | atomic_store_explicit(&progress[field], n, memory_order_release); | |
640 | |||
641 | 1213 | pthread_cond_broadcast(&p->progress_cond); | |
642 | 1213 | pthread_mutex_unlock(&p->progress_mutex); | |
643 | } | ||
644 | |||
645 | 150874 | void ff_thread_await_progress(const ThreadFrame *f, int n, int field) | |
646 | { | ||
647 | PerThreadContext *p; | ||
648 |
2/2✓ Branch 0 taken 150193 times.
✓ Branch 1 taken 681 times.
|
150874 | atomic_int *progress = f->progress ? f->progress->progress : NULL; |
649 | |||
650 |
2/2✓ Branch 0 taken 150193 times.
✓ Branch 1 taken 681 times.
|
150874 | if (!progress || |
651 |
2/2✓ Branch 0 taken 149633 times.
✓ Branch 1 taken 560 times.
|
150193 | atomic_load_explicit(&progress[field], memory_order_acquire) >= n) |
652 | 150314 | return; | |
653 | |||
654 | 560 | p = f->owner[field]->internal->thread_ctx; | |
655 | |||
656 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 560 times.
|
560 | if (atomic_load_explicit(&p->debug_threads, memory_order_relaxed)) |
657 | ✗ | av_log(f->owner[field], AV_LOG_DEBUG, | |
658 | "thread awaiting %d field %d from %p\n", n, field, progress); | ||
659 | |||
660 | 560 | pthread_mutex_lock(&p->progress_mutex); | |
661 |
2/2✓ Branch 0 taken 563 times.
✓ Branch 1 taken 560 times.
|
1123 | while (atomic_load_explicit(&progress[field], memory_order_relaxed) < n) |
662 | 563 | pthread_cond_wait(&p->progress_cond, &p->progress_mutex); | |
663 | 560 | pthread_mutex_unlock(&p->progress_mutex); | |
664 | } | ||
665 | |||
666 | 24053 | void ff_thread_finish_setup(AVCodecContext *avctx) { | |
667 | PerThreadContext *p; | ||
668 | |||
669 |
2/2✓ Branch 0 taken 23447 times.
✓ Branch 1 taken 606 times.
|
24053 | if (!(avctx->active_thread_type&FF_THREAD_FRAME)) return; |
670 | |||
671 | 606 | p = avctx->internal->thread_ctx; | |
672 | |||
673 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 606 times.
|
606 | p->hwaccel_threadsafe = avctx->hwaccel && |
674 | ✗ | (ffhwaccel(avctx->hwaccel)->caps_internal & HWACCEL_CAP_THREAD_SAFE); | |
675 | |||
676 |
1/4✗ Branch 1 not taken.
✓ Branch 2 taken 606 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
|
606 | if (hwaccel_serial(avctx) && !p->hwaccel_serializing) { |
677 | ✗ | pthread_mutex_lock(&p->parent->hwaccel_mutex); | |
678 | ✗ | p->hwaccel_serializing = 1; | |
679 | } | ||
680 | |||
681 | /* this assumes that no hwaccel calls happen before ff_thread_finish_setup() */ | ||
682 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 606 times.
|
606 | if (avctx->hwaccel && |
683 | ✗ | !(ffhwaccel(avctx->hwaccel)->caps_internal & HWACCEL_CAP_ASYNC_SAFE)) { | |
684 | ✗ | p->async_serializing = 1; | |
685 | |||
686 | ✗ | async_lock(p->parent); | |
687 | } | ||
688 | |||
689 | /* thread-unsafe hwaccels share a single private data instance, so we | ||
690 | * save hwaccel state for passing to the next thread; | ||
691 | * this is done here so that this worker thread can wipe its own hwaccel | ||
692 | * state after decoding, without requiring synchronization */ | ||
693 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 606 times.
|
606 | av_assert0(!p->parent->stash_hwaccel); |
694 |
1/2✗ Branch 1 not taken.
✓ Branch 2 taken 606 times.
|
606 | if (hwaccel_serial(avctx)) { |
695 | ✗ | p->parent->stash_hwaccel = avctx->hwaccel; | |
696 | ✗ | p->parent->stash_hwaccel_context = avctx->hwaccel_context; | |
697 | ✗ | p->parent->stash_hwaccel_priv = avctx->internal->hwaccel_priv_data; | |
698 | } | ||
699 | |||
700 | 606 | pthread_mutex_lock(&p->progress_mutex); | |
701 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 606 times.
|
606 | if(atomic_load(&p->state) == STATE_SETUP_FINISHED){ |
702 | ✗ | av_log(avctx, AV_LOG_WARNING, "Multiple ff_thread_finish_setup() calls\n"); | |
703 | } | ||
704 | |||
705 | 606 | atomic_store(&p->state, STATE_SETUP_FINISHED); | |
706 | |||
707 | 606 | pthread_cond_broadcast(&p->progress_cond); | |
708 | 606 | pthread_mutex_unlock(&p->progress_mutex); | |
709 | } | ||
710 | |||
711 | /// Waits for all threads to finish. | ||
712 | 10 | static av_cold void park_frame_worker_threads(FrameThreadContext *fctx, int thread_count) | |
713 | { | ||
714 | int i; | ||
715 | |||
716 | 10 | async_unlock(fctx); | |
717 | |||
718 |
2/2✓ Branch 0 taken 76 times.
✓ Branch 1 taken 10 times.
|
86 | for (i = 0; i < thread_count; i++) { |
719 | 76 | PerThreadContext *p = &fctx->threads[i]; | |
720 | |||
721 |
2/2✓ Branch 0 taken 8 times.
✓ Branch 1 taken 68 times.
|
76 | if (atomic_load(&p->state) != STATE_INPUT_READY) { |
722 | 8 | pthread_mutex_lock(&p->progress_mutex); | |
723 |
2/2✓ Branch 0 taken 8 times.
✓ Branch 1 taken 8 times.
|
16 | while (atomic_load(&p->state) != STATE_INPUT_READY) |
724 | 8 | pthread_cond_wait(&p->output_cond, &p->progress_mutex); | |
725 | 8 | pthread_mutex_unlock(&p->progress_mutex); | |
726 | } | ||
727 | } | ||
728 | |||
729 | 10 | async_lock(fctx); | |
730 | 10 | } | |
731 | |||
732 | #define OFF(member) offsetof(FrameThreadContext, member) | ||
733 | DEFINE_OFFSET_ARRAY(FrameThreadContext, thread_ctx, pthread_init_cnt, | ||
734 | (OFF(buffer_mutex), OFF(hwaccel_mutex), OFF(async_mutex)), | ||
735 | (OFF(async_cond))); | ||
736 | #undef OFF | ||
737 | |||
738 | #define OFF(member) offsetof(PerThreadContext, member) | ||
739 | DEFINE_OFFSET_ARRAY(PerThreadContext, per_thread, pthread_init_cnt, | ||
740 | (OFF(progress_mutex), OFF(mutex)), | ||
741 | (OFF(input_cond), OFF(progress_cond), OFF(output_cond))); | ||
742 | #undef OFF | ||
743 | |||
744 | 10 | av_cold void ff_frame_thread_free(AVCodecContext *avctx, int thread_count) | |
745 | { | ||
746 | 10 | FrameThreadContext *fctx = avctx->internal->thread_ctx; | |
747 | 10 | const FFCodec *codec = ffcodec(avctx->codec); | |
748 | int i; | ||
749 | |||
750 | 10 | park_frame_worker_threads(fctx, thread_count); | |
751 | |||
752 |
2/2✓ Branch 0 taken 76 times.
✓ Branch 1 taken 10 times.
|
86 | for (i = 0; i < thread_count; i++) { |
753 | 76 | PerThreadContext *p = &fctx->threads[i]; | |
754 | 76 | AVCodecContext *ctx = p->avctx; | |
755 | |||
756 |
1/2✓ Branch 0 taken 76 times.
✗ Branch 1 not taken.
|
76 | if (ctx->internal) { |
757 |
1/2✓ Branch 0 taken 76 times.
✗ Branch 1 not taken.
|
76 | if (p->thread_init == INITIALIZED) { |
758 | 76 | pthread_mutex_lock(&p->mutex); | |
759 | 76 | p->die = 1; | |
760 | 76 | pthread_cond_signal(&p->input_cond); | |
761 | 76 | pthread_mutex_unlock(&p->mutex); | |
762 | |||
763 | 76 | pthread_join(p->thread, NULL); | |
764 | } | ||
765 |
2/4✓ Branch 0 taken 76 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 76 times.
✗ Branch 3 not taken.
|
76 | if (codec->close && p->thread_init != UNINITIALIZED) |
766 | 76 | codec->close(ctx); | |
767 | |||
768 | /* When using a threadsafe hwaccel, this is where | ||
769 | * each thread's context is uninit'd and freed. */ | ||
770 | 76 | ff_hwaccel_uninit(ctx); | |
771 | |||
772 |
1/2✓ Branch 0 taken 76 times.
✗ Branch 1 not taken.
|
76 | if (ctx->priv_data) { |
773 |
2/2✓ Branch 0 taken 58 times.
✓ Branch 1 taken 18 times.
|
76 | if (codec->p.priv_class) |
774 | 58 | av_opt_free(ctx->priv_data); | |
775 | 76 | av_freep(&ctx->priv_data); | |
776 | } | ||
777 | |||
778 | 76 | av_refstruct_unref(&ctx->internal->pool); | |
779 | 76 | av_packet_free(&ctx->internal->in_pkt); | |
780 | 76 | av_packet_free(&ctx->internal->last_pkt_props); | |
781 | 76 | ff_decode_internal_uninit(ctx); | |
782 | 76 | av_freep(&ctx->internal); | |
783 | 76 | av_buffer_unref(&ctx->hw_frames_ctx); | |
784 | 76 | av_frame_side_data_free(&ctx->decoded_side_data, | |
785 | &ctx->nb_decoded_side_data); | ||
786 | } | ||
787 | |||
788 | 76 | decoded_frames_free(&p->df); | |
789 | |||
790 | 76 | ff_pthread_free(p, per_thread_offsets); | |
791 | 76 | av_packet_free(&p->avpkt); | |
792 | |||
793 | 76 | av_freep(&p->avctx); | |
794 | } | ||
795 | |||
796 | 10 | decoded_frames_free(&fctx->df); | |
797 | 10 | av_packet_free(&fctx->next_pkt); | |
798 | |||
799 | 10 | av_freep(&fctx->threads); | |
800 | 10 | ff_pthread_free(fctx, thread_ctx_offsets); | |
801 | |||
802 | /* if we have stashed hwaccel state, move it to the user-facing context, | ||
803 | * so it will be freed in ff_codec_close() */ | ||
804 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
|
10 | av_assert0(!avctx->hwaccel); |
805 | 10 | FFSWAP(const AVHWAccel*, avctx->hwaccel, fctx->stash_hwaccel); | |
806 | 10 | FFSWAP(void*, avctx->hwaccel_context, fctx->stash_hwaccel_context); | |
807 | 10 | FFSWAP(void*, avctx->internal->hwaccel_priv_data, fctx->stash_hwaccel_priv); | |
808 | |||
809 | 10 | av_freep(&avctx->internal->thread_ctx); | |
810 | 10 | } | |
811 | |||
812 | 76 | static av_cold int init_thread(PerThreadContext *p, int *threads_to_free, | |
813 | FrameThreadContext *fctx, AVCodecContext *avctx, | ||
814 | const FFCodec *codec, int first) | ||
815 | { | ||
816 | AVCodecContext *copy; | ||
817 | int err; | ||
818 | |||
819 | 76 | atomic_init(&p->state, STATE_INPUT_READY); | |
820 | |||
821 | 76 | copy = av_memdup(avctx, sizeof(*avctx)); | |
822 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 76 times.
|
76 | if (!copy) |
823 | ✗ | return AVERROR(ENOMEM); | |
824 | 76 | copy->priv_data = NULL; | |
825 | 76 | copy->decoded_side_data = NULL; | |
826 | 76 | copy->nb_decoded_side_data = 0; | |
827 | |||
828 | /* From now on, this PerThreadContext will be cleaned up by | ||
829 | * ff_frame_thread_free in case of errors. */ | ||
830 | 76 | (*threads_to_free)++; | |
831 | |||
832 | 76 | p->parent = fctx; | |
833 | 76 | p->avctx = copy; | |
834 | |||
835 | 76 | copy->internal = ff_decode_internal_alloc(); | |
836 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 76 times.
|
76 | if (!copy->internal) |
837 | ✗ | return AVERROR(ENOMEM); | |
838 | 76 | ff_decode_internal_sync(copy, avctx); | |
839 | 76 | copy->internal->thread_ctx = p; | |
840 | 76 | copy->internal->progress_frame_pool = avctx->internal->progress_frame_pool; | |
841 | |||
842 | 76 | copy->delay = avctx->delay; | |
843 | |||
844 |
1/2✓ Branch 0 taken 76 times.
✗ Branch 1 not taken.
|
76 | if (codec->priv_data_size) { |
845 | 76 | copy->priv_data = av_mallocz(codec->priv_data_size); | |
846 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 76 times.
|
76 | if (!copy->priv_data) |
847 | ✗ | return AVERROR(ENOMEM); | |
848 | |||
849 |
2/2✓ Branch 0 taken 58 times.
✓ Branch 1 taken 18 times.
|
76 | if (codec->p.priv_class) { |
850 | 58 | *(const AVClass **)copy->priv_data = codec->p.priv_class; | |
851 | 58 | err = av_opt_copy(copy->priv_data, avctx->priv_data); | |
852 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 58 times.
|
58 | if (err < 0) |
853 | ✗ | return err; | |
854 | } | ||
855 | } | ||
856 | |||
857 | 76 | err = ff_pthread_init(p, per_thread_offsets); | |
858 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 76 times.
|
76 | if (err < 0) |
859 | ✗ | return err; | |
860 | |||
861 |
1/2✗ Branch 1 not taken.
✓ Branch 2 taken 76 times.
|
76 | if (!(p->avpkt = av_packet_alloc())) |
862 | ✗ | return AVERROR(ENOMEM); | |
863 | |||
864 | 76 | copy->internal->is_frame_mt = 1; | |
865 |
2/2✓ Branch 0 taken 66 times.
✓ Branch 1 taken 10 times.
|
76 | if (!first) |
866 | 66 | copy->internal->is_copy = 1; | |
867 | |||
868 | 76 | copy->internal->in_pkt = av_packet_alloc(); | |
869 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 76 times.
|
76 | if (!copy->internal->in_pkt) |
870 | ✗ | return AVERROR(ENOMEM); | |
871 | |||
872 | 76 | copy->internal->last_pkt_props = av_packet_alloc(); | |
873 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 76 times.
|
76 | if (!copy->internal->last_pkt_props) |
874 | ✗ | return AVERROR(ENOMEM); | |
875 | |||
876 |
1/2✓ Branch 0 taken 76 times.
✗ Branch 1 not taken.
|
76 | if (codec->init) { |
877 | 76 | err = codec->init(copy); | |
878 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 76 times.
|
76 | if (err < 0) { |
879 | ✗ | if (codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP) | |
880 | ✗ | p->thread_init = NEEDS_CLOSE; | |
881 | ✗ | return err; | |
882 | } | ||
883 | } | ||
884 | 76 | p->thread_init = NEEDS_CLOSE; | |
885 | |||
886 |
2/2✓ Branch 0 taken 10 times.
✓ Branch 1 taken 66 times.
|
76 | if (first) { |
887 | 10 | update_context_from_thread(avctx, copy, 1); | |
888 | |||
889 | 10 | av_frame_side_data_free(&avctx->decoded_side_data, &avctx->nb_decoded_side_data); | |
890 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
|
10 | for (int i = 0; i < copy->nb_decoded_side_data; i++) { |
891 | ✗ | err = av_frame_side_data_clone(&avctx->decoded_side_data, | |
892 | &avctx->nb_decoded_side_data, | ||
893 | ✗ | copy->decoded_side_data[i], 0); | |
894 | ✗ | if (err < 0) | |
895 | ✗ | return err; | |
896 | } | ||
897 | } | ||
898 | |||
899 | 76 | atomic_init(&p->debug_threads, (copy->debug & FF_DEBUG_THREADS) != 0); | |
900 | |||
901 | 76 | err = AVERROR(pthread_create(&p->thread, NULL, frame_worker_thread, p)); | |
902 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 76 times.
|
76 | if (err < 0) |
903 | ✗ | return err; | |
904 | 76 | p->thread_init = INITIALIZED; | |
905 | |||
906 | 76 | return 0; | |
907 | } | ||
908 | |||
909 | 10 | av_cold int ff_frame_thread_init(AVCodecContext *avctx) | |
910 | { | ||
911 | 10 | int thread_count = avctx->thread_count; | |
912 | 10 | const FFCodec *codec = ffcodec(avctx->codec); | |
913 | FrameThreadContext *fctx; | ||
914 | 10 | int err, i = 0; | |
915 | |||
916 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
|
10 | if (!thread_count) { |
917 | ✗ | int nb_cpus = av_cpu_count(); | |
918 | // use number of cores + 1 as thread count if there is more than one | ||
919 | ✗ | if (nb_cpus > 1) | |
920 | ✗ | thread_count = avctx->thread_count = FFMIN(nb_cpus + 1, MAX_AUTO_THREADS); | |
921 | else | ||
922 | ✗ | thread_count = avctx->thread_count = 1; | |
923 | } | ||
924 | |||
925 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
|
10 | if (thread_count <= 1) { |
926 | ✗ | avctx->active_thread_type = 0; | |
927 | ✗ | return 0; | |
928 | } | ||
929 | |||
930 | 10 | avctx->internal->thread_ctx = fctx = av_mallocz(sizeof(FrameThreadContext)); | |
931 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
|
10 | if (!fctx) |
932 | ✗ | return AVERROR(ENOMEM); | |
933 | |||
934 | 10 | err = ff_pthread_init(fctx, thread_ctx_offsets); | |
935 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
|
10 | if (err < 0) { |
936 | ✗ | ff_pthread_free(fctx, thread_ctx_offsets); | |
937 | ✗ | av_freep(&avctx->internal->thread_ctx); | |
938 | ✗ | return err; | |
939 | } | ||
940 | |||
941 | 10 | fctx->next_pkt = av_packet_alloc(); | |
942 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
|
10 | if (!fctx->next_pkt) |
943 | ✗ | return AVERROR(ENOMEM); | |
944 | |||
945 | 10 | fctx->async_lock = 1; | |
946 | |||
947 |
2/2✓ Branch 0 taken 6 times.
✓ Branch 1 taken 4 times.
|
10 | if (codec->p.type == AVMEDIA_TYPE_VIDEO) |
948 | 6 | avctx->delay = avctx->thread_count - 1; | |
949 | |||
950 | 10 | fctx->threads = av_calloc(thread_count, sizeof(*fctx->threads)); | |
951 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
|
10 | if (!fctx->threads) { |
952 | ✗ | err = AVERROR(ENOMEM); | |
953 | ✗ | goto error; | |
954 | } | ||
955 | |||
956 |
2/2✓ Branch 0 taken 76 times.
✓ Branch 1 taken 10 times.
|
86 | for (; i < thread_count; ) { |
957 | 76 | PerThreadContext *p = &fctx->threads[i]; | |
958 | 76 | int first = !i; | |
959 | |||
960 | 76 | err = init_thread(p, &i, fctx, avctx, codec, first); | |
961 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 76 times.
|
76 | if (err < 0) |
962 | ✗ | goto error; | |
963 | } | ||
964 | |||
965 | 10 | return 0; | |
966 | |||
967 | ✗ | error: | |
968 | ✗ | ff_frame_thread_free(avctx, i); | |
969 | ✗ | return err; | |
970 | } | ||
971 | |||
972 | ✗ | av_cold void ff_thread_flush(AVCodecContext *avctx) | |
973 | { | ||
974 | int i; | ||
975 | ✗ | FrameThreadContext *fctx = avctx->internal->thread_ctx; | |
976 | |||
977 | ✗ | if (!fctx) return; | |
978 | |||
979 | ✗ | park_frame_worker_threads(fctx, avctx->thread_count); | |
980 | ✗ | if (fctx->prev_thread) { | |
981 | ✗ | if (fctx->prev_thread != &fctx->threads[0]) | |
982 | ✗ | update_context_from_thread(fctx->threads[0].avctx, fctx->prev_thread->avctx, 0); | |
983 | } | ||
984 | |||
985 | ✗ | fctx->next_decoding = fctx->next_finished = 0; | |
986 | ✗ | fctx->prev_thread = NULL; | |
987 | |||
988 | ✗ | decoded_frames_flush(&fctx->df); | |
989 | ✗ | fctx->result = 0; | |
990 | |||
991 | ✗ | for (i = 0; i < avctx->thread_count; i++) { | |
992 | ✗ | PerThreadContext *p = &fctx->threads[i]; | |
993 | |||
994 | ✗ | decoded_frames_flush(&p->df); | |
995 | ✗ | p->result = 0; | |
996 | |||
997 | ✗ | avcodec_flush_buffers(p->avctx); | |
998 | } | ||
999 | } | ||
1000 | |||
1001 | 37098 | int ff_thread_can_start_frame(AVCodecContext *avctx) | |
1002 | { | ||
1003 |
2/2✓ Branch 0 taken 52 times.
✓ Branch 1 taken 37046 times.
|
37098 | if ((avctx->active_thread_type & FF_THREAD_FRAME) && |
1004 |
1/2✓ Branch 1 taken 52 times.
✗ Branch 2 not taken.
|
52 | ffcodec(avctx->codec)->update_thread_context) { |
1005 | 52 | PerThreadContext *p = avctx->internal->thread_ctx; | |
1006 | |||
1007 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 52 times.
|
52 | if (atomic_load(&p->state) != STATE_SETTING_UP) |
1008 | ✗ | return 0; | |
1009 | } | ||
1010 | |||
1011 | 37098 | return 1; | |
1012 | } | ||
1013 | |||
1014 | 53002 | static int thread_get_buffer_internal(AVCodecContext *avctx, AVFrame *f, int flags) | |
1015 | { | ||
1016 | PerThreadContext *p; | ||
1017 | int err; | ||
1018 | |||
1019 |
2/2✓ Branch 0 taken 52464 times.
✓ Branch 1 taken 538 times.
|
53002 | if (!(avctx->active_thread_type & FF_THREAD_FRAME)) |
1020 | 52464 | return ff_get_buffer(avctx, f, flags); | |
1021 | |||
1022 | 538 | p = avctx->internal->thread_ctx; | |
1023 |
2/2✓ Branch 0 taken 453 times.
✓ Branch 1 taken 85 times.
|
538 | if (atomic_load(&p->state) != STATE_SETTING_UP && |
1024 |
1/2✗ Branch 1 not taken.
✓ Branch 2 taken 453 times.
|
453 | ffcodec(avctx->codec)->update_thread_context) { |
1025 | ✗ | av_log(avctx, AV_LOG_ERROR, "get_buffer() cannot be called after ff_thread_finish_setup()\n"); | |
1026 | ✗ | return -1; | |
1027 | } | ||
1028 | |||
1029 | 538 | pthread_mutex_lock(&p->parent->buffer_mutex); | |
1030 | 538 | err = ff_get_buffer(avctx, f, flags); | |
1031 | |||
1032 | 538 | pthread_mutex_unlock(&p->parent->buffer_mutex); | |
1033 | |||
1034 | 538 | return err; | |
1035 | } | ||
1036 | |||
1037 | 53002 | int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f, int flags) | |
1038 | { | ||
1039 | 53002 | int ret = thread_get_buffer_internal(avctx, f, flags); | |
1040 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 53002 times.
|
53002 | if (ret < 0) |
1041 | ✗ | av_log(avctx, AV_LOG_ERROR, "thread_get_buffer() failed\n"); | |
1042 | 53002 | return ret; | |
1043 | } | ||
1044 | |||
1045 | 25684 | int ff_thread_get_ext_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags) | |
1046 | { | ||
1047 | int ret; | ||
1048 | |||
1049 | 25684 | f->owner[0] = f->owner[1] = avctx; | |
1050 |
2/2✓ Branch 0 taken 25642 times.
✓ Branch 1 taken 42 times.
|
25684 | if (!(avctx->active_thread_type & FF_THREAD_FRAME)) |
1051 | 25642 | return ff_get_buffer(avctx, f->f, flags); | |
1052 | |||
1053 | 42 | f->progress = av_refstruct_allocz(sizeof(*f->progress)); | |
1054 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 42 times.
|
42 | if (!f->progress) |
1055 | ✗ | return AVERROR(ENOMEM); | |
1056 | |||
1057 | 42 | atomic_init(&f->progress->progress[0], -1); | |
1058 | 42 | atomic_init(&f->progress->progress[1], -1); | |
1059 | |||
1060 | 42 | ret = ff_thread_get_buffer(avctx, f->f, flags); | |
1061 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 42 times.
|
42 | if (ret) |
1062 | ✗ | av_refstruct_unref(&f->progress); | |
1063 | 42 | return ret; | |
1064 | } | ||
1065 | |||
1066 | 53252 | void ff_thread_release_ext_buffer(ThreadFrame *f) | |
1067 | { | ||
1068 | 53252 | av_refstruct_unref(&f->progress); | |
1069 | 53252 | f->owner[0] = f->owner[1] = NULL; | |
1070 |
1/2✓ Branch 0 taken 53252 times.
✗ Branch 1 not taken.
|
53252 | if (f->f) |
1071 | 53252 | av_frame_unref(f->f); | |
1072 | 53252 | } | |
1073 | |||
1074 | 710 | av_cold enum ThreadingStatus ff_thread_sync_ref(AVCodecContext *avctx, size_t offset) | |
1075 | { | ||
1076 | PerThreadContext *p; | ||
1077 | const void *ref; | ||
1078 | |||
1079 |
2/2✓ Branch 0 taken 702 times.
✓ Branch 1 taken 8 times.
|
710 | if (!avctx->internal->is_copy) |
1080 | 702 | return avctx->active_thread_type & FF_THREAD_FRAME ? | |
1081 |
2/2✓ Branch 0 taken 1 times.
✓ Branch 1 taken 701 times.
|
702 | FF_THREAD_IS_FIRST_THREAD : FF_THREAD_NO_FRAME_THREADING; |
1082 | |||
1083 | 8 | p = avctx->internal->thread_ctx; | |
1084 | |||
1085 | av_assert1(memcpy(&ref, (char*)avctx->priv_data + offset, sizeof(ref)) && ref == NULL); | ||
1086 | |||
1087 | 8 | memcpy(&ref, (const char*)p->parent->threads[0].avctx->priv_data + offset, sizeof(ref)); | |
1088 | av_assert1(ref); | ||
1089 | 8 | av_refstruct_replace((char*)avctx->priv_data + offset, ref); | |
1090 | |||
1091 | 8 | return FF_THREAD_IS_COPY; | |
1092 | } | ||
1093 | |||
1094 | 1076 | int ff_thread_get_packet(AVCodecContext *avctx, AVPacket *pkt) | |
1095 | { | ||
1096 | 1076 | PerThreadContext *p = avctx->internal->thread_ctx; | |
1097 | |||
1098 |
3/4✓ Branch 0 taken 538 times.
✓ Branch 1 taken 538 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 538 times.
|
1076 | if (!AVPACKET_IS_EMPTY(p->avpkt)) { |
1099 | 538 | av_packet_move_ref(pkt, p->avpkt); | |
1100 | 538 | return 0; | |
1101 | } | ||
1102 | |||
1103 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 538 times.
|
538 | return avctx->internal->draining ? AVERROR_EOF : AVERROR(EAGAIN); |
1104 | } | ||
1105 |