2 * Android MediaCodec decoder
4 * Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 #include <sys/types.h>
26 #include "libavutil/common.h"
27 #include "libavutil/hwcontext_mediacodec.h"
28 #include "libavutil/mem.h"
29 #include "libavutil/log.h"
30 #include "libavutil/pixfmt.h"
31 #include "libavutil/time.h"
32 #include "libavutil/timestamp.h"
37 #include "mediacodec.h"
38 #include "mediacodec_surface.h"
39 #include "mediacodec_sw_buffer.h"
40 #include "mediacodec_wrapper.h"
41 #include "mediacodecdec_common.h"
44 * OMX.k3.video.decoder.avc, OMX.NVIDIA.* OMX.SEC.avc.dec and OMX.google
45 * codec workarounds used in various place are taken from the Gstreamer
48 * Gstreamer references:
49 * https://cgit.freedesktop.org/gstreamer/gst-plugins-bad/tree/sys/androidmedia/
51 * Gstreamer copyright notice:
53 * Copyright (C) 2012, Collabora Ltd.
54 * Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
56 * Copyright (C) 2012, Rafaël Carré <funman@videolanorg>
58 * Copyright (C) 2015, Sebastian Dröge <sebastian@centricular.com>
60 * Copyright (C) 2014-2015, Collabora Ltd.
61 * Author: Matthieu Bouron <matthieu.bouron@gcollabora.com>
63 * Copyright (C) 2015, Edward Hervey
64 * Author: Edward Hervey <bilboed@gmail.com>
66 * Copyright (C) 2015, Matthew Waters <matthew@centricular.com>
68 * This library is free software; you can redistribute it and/or
69 * modify it under the terms of the GNU Lesser General Public
70 * License as published by the Free Software Foundation
71 * version 2.1 of the License.
73 * This library is distributed in the hope that it will be useful,
74 * but WITHOUT ANY WARRANTY; without even the implied warranty of
75 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
76 * Lesser General Public License for more details.
78 * You should have received a copy of the GNU Lesser General Public
79 * License along with this library; if not, write to the Free Software
80 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
84 #define INPUT_DEQUEUE_TIMEOUT_US 8000
85 #define OUTPUT_DEQUEUE_TIMEOUT_US 8000
86 #define OUTPUT_DEQUEUE_BLOCK_TIMEOUT_US 1000000
89 COLOR_FormatYUV420Planar = 0x13,
90 COLOR_FormatYUV420SemiPlanar = 0x15,
91 COLOR_FormatYCbYCr = 0x19,
92 COLOR_FormatAndroidOpaque = 0x7F000789,
93 COLOR_QCOM_FormatYUV420SemiPlanar = 0x7fa30c00,
94 COLOR_QCOM_FormatYUV420SemiPlanar32m = 0x7fa30c04,
95 COLOR_QCOM_FormatYUV420PackedSemiPlanar64x32Tile2m8ka = 0x7fa30c03,
96 COLOR_TI_FormatYUV420PackedSemiPlanar = 0x7f000100,
97 COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced = 0x7f000001,
100 static const struct {
103 enum AVPixelFormat pix_fmt;
105 } color_formats[] = {
107 { COLOR_FormatYUV420Planar, AV_PIX_FMT_YUV420P },
108 { COLOR_FormatYUV420SemiPlanar, AV_PIX_FMT_NV12 },
109 { COLOR_QCOM_FormatYUV420SemiPlanar, AV_PIX_FMT_NV12 },
110 { COLOR_QCOM_FormatYUV420SemiPlanar32m, AV_PIX_FMT_NV12 },
111 { COLOR_QCOM_FormatYUV420PackedSemiPlanar64x32Tile2m8ka, AV_PIX_FMT_NV12 },
112 { COLOR_TI_FormatYUV420PackedSemiPlanar, AV_PIX_FMT_NV12 },
113 { COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced, AV_PIX_FMT_NV12 },
117 static enum AVPixelFormat mcdec_map_color_format(AVCodecContext *avctx,
118 MediaCodecDecContext *s,
122 enum AVPixelFormat ret = AV_PIX_FMT_NONE;
125 return AV_PIX_FMT_MEDIACODEC;
128 if (!strcmp(s->codec_name, "OMX.k3.video.decoder.avc") && color_format == COLOR_FormatYCbYCr) {
129 s->color_format = color_format = COLOR_TI_FormatYUV420PackedSemiPlanar;
132 for (i = 0; i < FF_ARRAY_ELEMS(color_formats); i++) {
133 if (color_formats[i].color_format == color_format) {
134 return color_formats[i].pix_fmt;
138 av_log(avctx, AV_LOG_ERROR, "Output color format 0x%x (value=%d) is not supported\n",
139 color_format, color_format);
144 static void ff_mediacodec_dec_ref(MediaCodecDecContext *s)
146 atomic_fetch_add(&s->refcount, 1);
149 static void ff_mediacodec_dec_unref(MediaCodecDecContext *s)
154 if (atomic_fetch_sub(&s->refcount, 1) == 1) {
156 ff_AMediaCodec_delete(s->codec);
161 ff_AMediaFormat_delete(s->format);
166 ff_mediacodec_surface_unref(s->surface, NULL);
170 av_freep(&s->codec_name);
175 static void mediacodec_buffer_release(void *opaque, uint8_t *data)
177 AVMediaCodecBuffer *buffer = opaque;
178 MediaCodecDecContext *ctx = buffer->ctx;
179 int released = atomic_load(&buffer->released);
182 ff_AMediaCodec_releaseOutputBuffer(ctx->codec, buffer->index, 0);
185 ff_mediacodec_dec_unref(ctx);
189 static int mediacodec_wrap_hw_buffer(AVCodecContext *avctx,
190 MediaCodecDecContext *s,
192 FFAMediaCodecBufferInfo *info,
197 AVMediaCodecBuffer *buffer = NULL;
199 frame->buf[0] = NULL;
200 frame->width = avctx->width;
201 frame->height = avctx->height;
202 frame->format = avctx->pix_fmt;
204 if (avctx->pkt_timebase.num && avctx->pkt_timebase.den) {
205 frame->pts = av_rescale_q(info->presentationTimeUs,
206 av_make_q(1, 1000000),
207 avctx->pkt_timebase);
209 frame->pts = info->presentationTimeUs;
212 FF_DISABLE_DEPRECATION_WARNINGS
213 frame->pkt_pts = frame->pts;
214 FF_ENABLE_DEPRECATION_WARNINGS
216 frame->pkt_dts = AV_NOPTS_VALUE;
218 buffer = av_mallocz(sizeof(AVMediaCodecBuffer));
220 ret = AVERROR(ENOMEM);
224 atomic_init(&buffer->released, 0);
226 frame->buf[0] = av_buffer_create(NULL,
228 mediacodec_buffer_release,
230 AV_BUFFER_FLAG_READONLY);
232 if (!frame->buf[0]) {
233 ret = AVERROR(ENOMEM);
239 ff_mediacodec_dec_ref(s);
241 buffer->index = index;
242 buffer->pts = info->presentationTimeUs;
244 frame->data[3] = (uint8_t *)buffer;
249 av_buffer_unref(&frame->buf[0]);
250 status = ff_AMediaCodec_releaseOutputBuffer(s->codec, index, 0);
252 av_log(avctx, AV_LOG_ERROR, "Failed to release output buffer\n");
253 ret = AVERROR_EXTERNAL;
259 static int mediacodec_wrap_sw_buffer(AVCodecContext *avctx,
260 MediaCodecDecContext *s,
264 FFAMediaCodecBufferInfo *info,
270 frame->width = avctx->width;
271 frame->height = avctx->height;
272 frame->format = avctx->pix_fmt;
274 /* MediaCodec buffers needs to be copied to our own refcounted buffers
275 * because the flush command invalidates all input and output buffers.
277 if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
278 av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer\n");
282 /* Override frame->pkt_pts as ff_get_buffer will override its value based
283 * on the last avpacket received which is not in sync with the frame:
284 * * N avpackets can be pushed before 1 frame is actually returned
285 * * 0-sized avpackets are pushed to flush remaining frames at EOS */
286 if (avctx->pkt_timebase.num && avctx->pkt_timebase.den) {
287 frame->pts = av_rescale_q(info->presentationTimeUs,
288 av_make_q(1, 1000000),
289 avctx->pkt_timebase);
291 frame->pts = info->presentationTimeUs;
294 FF_DISABLE_DEPRECATION_WARNINGS
295 frame->pkt_pts = frame->pts;
296 FF_ENABLE_DEPRECATION_WARNINGS
298 frame->pkt_dts = AV_NOPTS_VALUE;
300 av_log(avctx, AV_LOG_DEBUG,
301 "Frame: width=%d stride=%d height=%d slice-height=%d "
302 "crop-top=%d crop-bottom=%d crop-left=%d crop-right=%d encoder=%s\n"
303 "destination linesizes=%d,%d,%d\n" ,
304 avctx->width, s->stride, avctx->height, s->slice_height,
305 s->crop_top, s->crop_bottom, s->crop_left, s->crop_right, s->codec_name,
306 frame->linesize[0], frame->linesize[1], frame->linesize[2]);
308 switch (s->color_format) {
309 case COLOR_FormatYUV420Planar:
310 ff_mediacodec_sw_buffer_copy_yuv420_planar(avctx, s, data, size, info, frame);
312 case COLOR_FormatYUV420SemiPlanar:
313 case COLOR_QCOM_FormatYUV420SemiPlanar:
314 case COLOR_QCOM_FormatYUV420SemiPlanar32m:
315 ff_mediacodec_sw_buffer_copy_yuv420_semi_planar(avctx, s, data, size, info, frame);
317 case COLOR_TI_FormatYUV420PackedSemiPlanar:
318 case COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced:
319 ff_mediacodec_sw_buffer_copy_yuv420_packed_semi_planar(avctx, s, data, size, info, frame);
321 case COLOR_QCOM_FormatYUV420PackedSemiPlanar64x32Tile2m8ka:
322 ff_mediacodec_sw_buffer_copy_yuv420_packed_semi_planar_64x32Tile2m8ka(avctx, s, data, size, info, frame);
325 av_log(avctx, AV_LOG_ERROR, "Unsupported color format 0x%x (value=%d)\n",
326 s->color_format, s->color_format);
327 ret = AVERROR(EINVAL);
333 status = ff_AMediaCodec_releaseOutputBuffer(s->codec, index, 0);
335 av_log(avctx, AV_LOG_ERROR, "Failed to release output buffer\n");
336 ret = AVERROR_EXTERNAL;
342 #define AMEDIAFORMAT_GET_INT32(name, key, mandatory) do { \
344 if (ff_AMediaFormat_getInt32(s->format, key, &value)) { \
346 } else if (mandatory) { \
347 av_log(avctx, AV_LOG_ERROR, "Could not get %s from format %s\n", key, format); \
348 ret = AVERROR_EXTERNAL; \
353 static int mediacodec_dec_parse_format(AVCodecContext *avctx, MediaCodecDecContext *s)
361 av_log(avctx, AV_LOG_ERROR, "Output MediaFormat is not set\n");
362 return AVERROR(EINVAL);
365 format = ff_AMediaFormat_toString(s->format);
367 return AVERROR_EXTERNAL;
369 av_log(avctx, AV_LOG_DEBUG, "Parsing MediaFormat %s\n", format);
371 /* Mandatory fields */
372 AMEDIAFORMAT_GET_INT32(s->width, "width", 1);
373 AMEDIAFORMAT_GET_INT32(s->height, "height", 1);
375 AMEDIAFORMAT_GET_INT32(s->stride, "stride", 1);
376 s->stride = s->stride > 0 ? s->stride : s->width;
378 AMEDIAFORMAT_GET_INT32(s->slice_height, "slice-height", 1);
379 s->slice_height = s->slice_height > 0 ? s->slice_height : s->height;
381 if (strstr(s->codec_name, "OMX.Nvidia.")) {
382 s->slice_height = FFALIGN(s->height, 16);
383 } else if (strstr(s->codec_name, "OMX.SEC.avc.dec")) {
384 s->slice_height = avctx->height;
385 s->stride = avctx->width;
388 AMEDIAFORMAT_GET_INT32(s->color_format, "color-format", 1);
389 s->pix_fmt = avctx->pix_fmt = mcdec_map_color_format(avctx, s, s->color_format);
390 if (avctx->pix_fmt == AV_PIX_FMT_NONE) {
391 av_log(avctx, AV_LOG_ERROR, "Output color format is not supported\n");
392 ret = AVERROR(EINVAL);
396 /* Optional fields */
397 AMEDIAFORMAT_GET_INT32(s->crop_top, "crop-top", 0);
398 AMEDIAFORMAT_GET_INT32(s->crop_bottom, "crop-bottom", 0);
399 AMEDIAFORMAT_GET_INT32(s->crop_left, "crop-left", 0);
400 AMEDIAFORMAT_GET_INT32(s->crop_right, "crop-right", 0);
402 width = s->crop_right + 1 - s->crop_left;
403 height = s->crop_bottom + 1 - s->crop_top;
405 av_log(avctx, AV_LOG_INFO,
406 "Output crop parameters top=%d bottom=%d left=%d right=%d, "
407 "resulting dimensions width=%d height=%d\n",
408 s->crop_top, s->crop_bottom, s->crop_left, s->crop_right,
412 return ff_set_dimensions(avctx, width, height);
419 static int mediacodec_dec_flush_codec(AVCodecContext *avctx, MediaCodecDecContext *s)
421 FFAMediaCodec *codec = s->codec;
424 s->output_buffer_count = 0;
430 status = ff_AMediaCodec_flush(codec);
432 av_log(avctx, AV_LOG_ERROR, "Failed to flush codec\n");
433 return AVERROR_EXTERNAL;
439 int ff_mediacodec_dec_init(AVCodecContext *avctx, MediaCodecDecContext *s,
440 const char *mime, FFAMediaFormat *format)
446 enum AVPixelFormat pix_fmt;
447 static const enum AVPixelFormat pix_fmts[] = {
448 AV_PIX_FMT_MEDIACODEC,
452 atomic_init(&s->refcount, 1);
454 pix_fmt = ff_get_format(avctx, pix_fmts);
455 if (pix_fmt == AV_PIX_FMT_MEDIACODEC) {
456 AVMediaCodecContext *user_ctx = avctx->hwaccel_context;
458 if (avctx->hw_device_ctx) {
459 AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)(avctx->hw_device_ctx->data);
460 if (device_ctx->type == AV_HWDEVICE_TYPE_MEDIACODEC) {
461 if (device_ctx->hwctx) {
462 AVMediaCodecDeviceContext *mediacodec_ctx = (AVMediaCodecDeviceContext *)device_ctx->hwctx;
463 s->surface = ff_mediacodec_surface_ref(mediacodec_ctx->surface, avctx);
464 av_log(avctx, AV_LOG_INFO, "Using surface %p\n", s->surface);
469 if (!s->surface && user_ctx && user_ctx->surface) {
470 s->surface = ff_mediacodec_surface_ref(user_ctx->surface, avctx);
471 av_log(avctx, AV_LOG_INFO, "Using surface %p\n", s->surface);
475 profile = ff_AMediaCodecProfile_getProfileFromAVCodecContext(avctx);
477 av_log(avctx, AV_LOG_WARNING, "Unsupported or unknown profile\n");
480 s->codec_name = ff_AMediaCodecList_getCodecNameByType(mime, profile, 0, avctx);
481 if (!s->codec_name) {
482 ret = AVERROR_EXTERNAL;
486 av_log(avctx, AV_LOG_DEBUG, "Found decoder %s\n", s->codec_name);
487 s->codec = ff_AMediaCodec_createCodecByName(s->codec_name);
489 av_log(avctx, AV_LOG_ERROR, "Failed to create media decoder for type %s and name %s\n", mime, s->codec_name);
490 ret = AVERROR_EXTERNAL;
494 status = ff_AMediaCodec_configure(s->codec, format, s->surface, NULL, 0);
496 char *desc = ff_AMediaFormat_toString(format);
497 av_log(avctx, AV_LOG_ERROR,
498 "Failed to configure codec (status = %d) with format %s\n",
502 ret = AVERROR_EXTERNAL;
506 status = ff_AMediaCodec_start(s->codec);
508 char *desc = ff_AMediaFormat_toString(format);
509 av_log(avctx, AV_LOG_ERROR,
510 "Failed to start codec (status = %d) with format %s\n",
513 ret = AVERROR_EXTERNAL;
517 s->format = ff_AMediaCodec_getOutputFormat(s->codec);
519 if ((ret = mediacodec_dec_parse_format(avctx, s)) < 0) {
520 av_log(avctx, AV_LOG_ERROR,
521 "Failed to configure context\n");
526 av_log(avctx, AV_LOG_DEBUG, "MediaCodec %p started successfully\n", s->codec);
531 av_log(avctx, AV_LOG_ERROR, "MediaCodec %p failed to start\n", s->codec);
532 ff_mediacodec_dec_close(avctx, s);
536 int ff_mediacodec_dec_send(AVCodecContext *avctx, MediaCodecDecContext *s,
540 int need_draining = 0;
544 FFAMediaCodec *codec = s->codec;
546 int64_t input_dequeue_timeout_us = INPUT_DEQUEUE_TIMEOUT_US;
549 av_log(avctx, AV_LOG_ERROR, "Decoder is flushing and cannot accept new buffer "
550 "until all output buffers have been released\n");
551 return AVERROR_EXTERNAL;
554 if (pkt->size == 0) {
558 if (s->draining && s->eos) {
562 while (offset < pkt->size || (need_draining && !s->draining)) {
564 index = ff_AMediaCodec_dequeueInputBuffer(codec, input_dequeue_timeout_us);
565 if (ff_AMediaCodec_infoTryAgainLater(codec, index)) {
566 av_log(avctx, AV_LOG_TRACE, "Failed to dequeue input buffer, try again later..\n");
571 av_log(avctx, AV_LOG_ERROR, "Failed to dequeue input buffer (status=%zd)\n", index);
572 return AVERROR_EXTERNAL;
575 data = ff_AMediaCodec_getInputBuffer(codec, index, &size);
577 av_log(avctx, AV_LOG_ERROR, "Failed to get input buffer\n");
578 return AVERROR_EXTERNAL;
582 int64_t pts = pkt->pts;
583 uint32_t flags = ff_AMediaCodec_getBufferFlagEndOfStream(codec);
586 pts = av_rescale_q(pts, avctx->pkt_timebase, av_make_q(1, 1000000));
589 av_log(avctx, AV_LOG_DEBUG, "Sending End Of Stream signal\n");
591 status = ff_AMediaCodec_queueInputBuffer(codec, index, 0, 0, pts, flags);
593 av_log(avctx, AV_LOG_ERROR, "Failed to queue input empty buffer (status = %d)\n", status);
594 return AVERROR_EXTERNAL;
597 av_log(avctx, AV_LOG_TRACE, "Queued input buffer %zd"
598 " size=%zd ts=%" PRIi64 "\n", index, size, pts);
603 int64_t pts = pkt->pts;
605 size = FFMIN(pkt->size - offset, size);
606 memcpy(data, pkt->data + offset, size);
609 if (avctx->pkt_timebase.num && avctx->pkt_timebase.den) {
610 pts = av_rescale_q(pts, avctx->pkt_timebase, av_make_q(1, 1000000));
613 status = ff_AMediaCodec_queueInputBuffer(codec, index, 0, size, pts, 0);
615 av_log(avctx, AV_LOG_ERROR, "Failed to queue input buffer (status = %d)\n", status);
616 return AVERROR_EXTERNAL;
622 return AVERROR(EAGAIN);
626 int ff_mediacodec_dec_receive(AVCodecContext *avctx, MediaCodecDecContext *s,
627 AVFrame *frame, bool wait)
633 FFAMediaCodec *codec = s->codec;
634 FFAMediaCodecBufferInfo info = { 0 };
636 int64_t output_dequeue_timeout_us = OUTPUT_DEQUEUE_TIMEOUT_US;
638 if (s->draining && s->eos) {
643 /* If the codec is flushing or need to be flushed, block for a fair
644 * amount of time to ensure we got a frame */
645 output_dequeue_timeout_us = OUTPUT_DEQUEUE_BLOCK_TIMEOUT_US;
646 } else if (s->output_buffer_count == 0 || !wait) {
647 /* If the codec hasn't produced any frames, do not block so we
648 * can push data to it as fast as possible, and get the first
650 output_dequeue_timeout_us = 0;
653 index = ff_AMediaCodec_dequeueOutputBuffer(codec, &info, output_dequeue_timeout_us);
655 av_log(avctx, AV_LOG_TRACE, "Got output buffer %zd"
656 " offset=%" PRIi32 " size=%" PRIi32 " ts=%" PRIi64
657 " flags=%" PRIu32 "\n", index, info.offset, info.size,
658 info.presentationTimeUs, info.flags);
660 if (info.flags & ff_AMediaCodec_getBufferFlagEndOfStream(codec)) {
666 if ((ret = mediacodec_wrap_hw_buffer(avctx, s, index, &info, frame)) < 0) {
667 av_log(avctx, AV_LOG_ERROR, "Failed to wrap MediaCodec buffer\n");
671 data = ff_AMediaCodec_getOutputBuffer(codec, index, &size);
673 av_log(avctx, AV_LOG_ERROR, "Failed to get output buffer\n");
674 return AVERROR_EXTERNAL;
677 if ((ret = mediacodec_wrap_sw_buffer(avctx, s, data, size, index, &info, frame)) < 0) {
678 av_log(avctx, AV_LOG_ERROR, "Failed to wrap MediaCodec buffer\n");
683 s->output_buffer_count++;
686 status = ff_AMediaCodec_releaseOutputBuffer(codec, index, 0);
688 av_log(avctx, AV_LOG_ERROR, "Failed to release output buffer\n");
692 } else if (ff_AMediaCodec_infoOutputFormatChanged(codec, index)) {
696 status = ff_AMediaFormat_delete(s->format);
698 av_log(avctx, AV_LOG_ERROR, "Failed to delete MediaFormat %p\n", s->format);
702 s->format = ff_AMediaCodec_getOutputFormat(codec);
704 av_log(avctx, AV_LOG_ERROR, "Failed to get output format\n");
705 return AVERROR_EXTERNAL;
708 format = ff_AMediaFormat_toString(s->format);
710 return AVERROR_EXTERNAL;
712 av_log(avctx, AV_LOG_INFO, "Output MediaFormat changed to %s\n", format);
715 if ((ret = mediacodec_dec_parse_format(avctx, s)) < 0) {
719 } else if (ff_AMediaCodec_infoOutputBuffersChanged(codec, index)) {
720 ff_AMediaCodec_cleanOutputBuffers(codec);
721 } else if (ff_AMediaCodec_infoTryAgainLater(codec, index)) {
723 av_log(avctx, AV_LOG_ERROR, "Failed to dequeue output buffer within %" PRIi64 "ms "
724 "while draining remaining frames, output will probably lack frames\n",
725 output_dequeue_timeout_us / 1000);
727 av_log(avctx, AV_LOG_DEBUG, "No output buffer available, try again later\n");
730 av_log(avctx, AV_LOG_ERROR, "Failed to dequeue output buffer (status=%zd)\n", index);
731 return AVERROR_EXTERNAL;
734 return AVERROR(EAGAIN);
737 int ff_mediacodec_dec_flush(AVCodecContext *avctx, MediaCodecDecContext *s)
739 if (!s->surface || atomic_load(&s->refcount) == 1) {
742 /* No frames (holding a reference to the codec) are retained by the
743 * user, thus we can flush the codec and returns accordingly */
744 if ((ret = mediacodec_dec_flush_codec(avctx, s)) < 0) {
755 int ff_mediacodec_dec_close(AVCodecContext *avctx, MediaCodecDecContext *s)
757 ff_mediacodec_dec_unref(s);
762 int ff_mediacodec_dec_is_flushing(AVCodecContext *avctx, MediaCodecDecContext *s)