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);
181 if (!released && (ctx->delay_flush || buffer->serial == atomic_load(&ctx->serial))) {
182 ff_AMediaCodec_releaseOutputBuffer(ctx->codec, buffer->index, 0);
185 if (ctx->delay_flush)
186 ff_mediacodec_dec_unref(ctx);
190 static int mediacodec_wrap_hw_buffer(AVCodecContext *avctx,
191 MediaCodecDecContext *s,
193 FFAMediaCodecBufferInfo *info,
198 AVMediaCodecBuffer *buffer = NULL;
200 frame->buf[0] = NULL;
201 frame->width = avctx->width;
202 frame->height = avctx->height;
203 frame->format = avctx->pix_fmt;
205 if (avctx->pkt_timebase.num && avctx->pkt_timebase.den) {
206 frame->pts = av_rescale_q(info->presentationTimeUs,
207 av_make_q(1, 1000000),
208 avctx->pkt_timebase);
210 frame->pts = info->presentationTimeUs;
213 FF_DISABLE_DEPRECATION_WARNINGS
214 frame->pkt_pts = frame->pts;
215 FF_ENABLE_DEPRECATION_WARNINGS
217 frame->pkt_dts = AV_NOPTS_VALUE;
219 buffer = av_mallocz(sizeof(AVMediaCodecBuffer));
221 ret = AVERROR(ENOMEM);
225 atomic_init(&buffer->released, 0);
227 frame->buf[0] = av_buffer_create(NULL,
229 mediacodec_buffer_release,
231 AV_BUFFER_FLAG_READONLY);
233 if (!frame->buf[0]) {
234 ret = AVERROR(ENOMEM);
240 buffer->serial = atomic_load(&s->serial);
242 ff_mediacodec_dec_ref(s);
244 buffer->index = index;
245 buffer->pts = info->presentationTimeUs;
247 frame->data[3] = (uint8_t *)buffer;
252 av_buffer_unref(&frame->buf[0]);
253 status = ff_AMediaCodec_releaseOutputBuffer(s->codec, index, 0);
255 av_log(avctx, AV_LOG_ERROR, "Failed to release output buffer\n");
256 ret = AVERROR_EXTERNAL;
262 static int mediacodec_wrap_sw_buffer(AVCodecContext *avctx,
263 MediaCodecDecContext *s,
267 FFAMediaCodecBufferInfo *info,
273 frame->width = avctx->width;
274 frame->height = avctx->height;
275 frame->format = avctx->pix_fmt;
277 /* MediaCodec buffers needs to be copied to our own refcounted buffers
278 * because the flush command invalidates all input and output buffers.
280 if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
281 av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer\n");
285 /* Override frame->pkt_pts as ff_get_buffer will override its value based
286 * on the last avpacket received which is not in sync with the frame:
287 * * N avpackets can be pushed before 1 frame is actually returned
288 * * 0-sized avpackets are pushed to flush remaining frames at EOS */
289 if (avctx->pkt_timebase.num && avctx->pkt_timebase.den) {
290 frame->pts = av_rescale_q(info->presentationTimeUs,
291 av_make_q(1, 1000000),
292 avctx->pkt_timebase);
294 frame->pts = info->presentationTimeUs;
297 FF_DISABLE_DEPRECATION_WARNINGS
298 frame->pkt_pts = frame->pts;
299 FF_ENABLE_DEPRECATION_WARNINGS
301 frame->pkt_dts = AV_NOPTS_VALUE;
303 av_log(avctx, AV_LOG_TRACE,
304 "Frame: width=%d stride=%d height=%d slice-height=%d "
305 "crop-top=%d crop-bottom=%d crop-left=%d crop-right=%d encoder=%s\n"
306 "destination linesizes=%d,%d,%d\n" ,
307 avctx->width, s->stride, avctx->height, s->slice_height,
308 s->crop_top, s->crop_bottom, s->crop_left, s->crop_right, s->codec_name,
309 frame->linesize[0], frame->linesize[1], frame->linesize[2]);
311 switch (s->color_format) {
312 case COLOR_FormatYUV420Planar:
313 ff_mediacodec_sw_buffer_copy_yuv420_planar(avctx, s, data, size, info, frame);
315 case COLOR_FormatYUV420SemiPlanar:
316 case COLOR_QCOM_FormatYUV420SemiPlanar:
317 case COLOR_QCOM_FormatYUV420SemiPlanar32m:
318 ff_mediacodec_sw_buffer_copy_yuv420_semi_planar(avctx, s, data, size, info, frame);
320 case COLOR_TI_FormatYUV420PackedSemiPlanar:
321 case COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced:
322 ff_mediacodec_sw_buffer_copy_yuv420_packed_semi_planar(avctx, s, data, size, info, frame);
324 case COLOR_QCOM_FormatYUV420PackedSemiPlanar64x32Tile2m8ka:
325 ff_mediacodec_sw_buffer_copy_yuv420_packed_semi_planar_64x32Tile2m8ka(avctx, s, data, size, info, frame);
328 av_log(avctx, AV_LOG_ERROR, "Unsupported color format 0x%x (value=%d)\n",
329 s->color_format, s->color_format);
330 ret = AVERROR(EINVAL);
336 status = ff_AMediaCodec_releaseOutputBuffer(s->codec, index, 0);
338 av_log(avctx, AV_LOG_ERROR, "Failed to release output buffer\n");
339 ret = AVERROR_EXTERNAL;
345 #define AMEDIAFORMAT_GET_INT32(name, key, mandatory) do { \
347 if (ff_AMediaFormat_getInt32(s->format, key, &value)) { \
349 } else if (mandatory) { \
350 av_log(avctx, AV_LOG_ERROR, "Could not get %s from format %s\n", key, format); \
351 ret = AVERROR_EXTERNAL; \
356 static int mediacodec_dec_parse_format(AVCodecContext *avctx, MediaCodecDecContext *s)
364 av_log(avctx, AV_LOG_ERROR, "Output MediaFormat is not set\n");
365 return AVERROR(EINVAL);
368 format = ff_AMediaFormat_toString(s->format);
370 return AVERROR_EXTERNAL;
372 av_log(avctx, AV_LOG_DEBUG, "Parsing MediaFormat %s\n", format);
374 /* Mandatory fields */
375 AMEDIAFORMAT_GET_INT32(s->width, "width", 1);
376 AMEDIAFORMAT_GET_INT32(s->height, "height", 1);
378 AMEDIAFORMAT_GET_INT32(s->stride, "stride", 1);
379 s->stride = s->stride > 0 ? s->stride : s->width;
381 AMEDIAFORMAT_GET_INT32(s->slice_height, "slice-height", 1);
382 s->slice_height = s->slice_height > 0 ? s->slice_height : s->height;
384 if (strstr(s->codec_name, "OMX.Nvidia.")) {
385 s->slice_height = FFALIGN(s->height, 16);
386 } else if (strstr(s->codec_name, "OMX.SEC.avc.dec")) {
387 s->slice_height = avctx->height;
388 s->stride = avctx->width;
391 AMEDIAFORMAT_GET_INT32(s->color_format, "color-format", 1);
392 avctx->pix_fmt = mcdec_map_color_format(avctx, s, s->color_format);
393 if (avctx->pix_fmt == AV_PIX_FMT_NONE) {
394 av_log(avctx, AV_LOG_ERROR, "Output color format is not supported\n");
395 ret = AVERROR(EINVAL);
399 /* Optional fields */
400 AMEDIAFORMAT_GET_INT32(s->crop_top, "crop-top", 0);
401 AMEDIAFORMAT_GET_INT32(s->crop_bottom, "crop-bottom", 0);
402 AMEDIAFORMAT_GET_INT32(s->crop_left, "crop-left", 0);
403 AMEDIAFORMAT_GET_INT32(s->crop_right, "crop-right", 0);
405 width = s->crop_right + 1 - s->crop_left;
406 height = s->crop_bottom + 1 - s->crop_top;
408 av_log(avctx, AV_LOG_INFO,
409 "Output crop parameters top=%d bottom=%d left=%d right=%d, "
410 "resulting dimensions width=%d height=%d\n",
411 s->crop_top, s->crop_bottom, s->crop_left, s->crop_right,
415 return ff_set_dimensions(avctx, width, height);
421 static int mediacodec_dec_flush_codec(AVCodecContext *avctx, MediaCodecDecContext *s)
423 FFAMediaCodec *codec = s->codec;
426 s->output_buffer_count = 0;
431 atomic_fetch_add(&s->serial, 1);
433 status = ff_AMediaCodec_flush(codec);
435 av_log(avctx, AV_LOG_ERROR, "Failed to flush codec\n");
436 return AVERROR_EXTERNAL;
442 int ff_mediacodec_dec_init(AVCodecContext *avctx, MediaCodecDecContext *s,
443 const char *mime, FFAMediaFormat *format)
449 enum AVPixelFormat pix_fmt;
450 static const enum AVPixelFormat pix_fmts[] = {
451 AV_PIX_FMT_MEDIACODEC,
456 atomic_init(&s->refcount, 1);
457 atomic_init(&s->serial, 1);
459 pix_fmt = ff_get_format(avctx, pix_fmts);
460 if (pix_fmt == AV_PIX_FMT_MEDIACODEC) {
461 AVMediaCodecContext *user_ctx = avctx->hwaccel_context;
463 if (avctx->hw_device_ctx) {
464 AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)(avctx->hw_device_ctx->data);
465 if (device_ctx->type == AV_HWDEVICE_TYPE_MEDIACODEC) {
466 if (device_ctx->hwctx) {
467 AVMediaCodecDeviceContext *mediacodec_ctx = (AVMediaCodecDeviceContext *)device_ctx->hwctx;
468 s->surface = ff_mediacodec_surface_ref(mediacodec_ctx->surface, avctx);
469 av_log(avctx, AV_LOG_INFO, "Using surface %p\n", s->surface);
474 if (!s->surface && user_ctx && user_ctx->surface) {
475 s->surface = ff_mediacodec_surface_ref(user_ctx->surface, avctx);
476 av_log(avctx, AV_LOG_INFO, "Using surface %p\n", s->surface);
480 profile = ff_AMediaCodecProfile_getProfileFromAVCodecContext(avctx);
482 av_log(avctx, AV_LOG_WARNING, "Unsupported or unknown profile\n");
485 s->codec_name = ff_AMediaCodecList_getCodecNameByType(mime, profile, 0, avctx);
486 if (!s->codec_name) {
487 ret = AVERROR_EXTERNAL;
491 av_log(avctx, AV_LOG_DEBUG, "Found decoder %s\n", s->codec_name);
492 s->codec = ff_AMediaCodec_createCodecByName(s->codec_name);
494 av_log(avctx, AV_LOG_ERROR, "Failed to create media decoder for type %s and name %s\n", mime, s->codec_name);
495 ret = AVERROR_EXTERNAL;
499 status = ff_AMediaCodec_configure(s->codec, format, s->surface, NULL, 0);
501 char *desc = ff_AMediaFormat_toString(format);
502 av_log(avctx, AV_LOG_ERROR,
503 "Failed to configure codec (status = %d) with format %s\n",
507 ret = AVERROR_EXTERNAL;
511 status = ff_AMediaCodec_start(s->codec);
513 char *desc = ff_AMediaFormat_toString(format);
514 av_log(avctx, AV_LOG_ERROR,
515 "Failed to start codec (status = %d) with format %s\n",
518 ret = AVERROR_EXTERNAL;
522 s->format = ff_AMediaCodec_getOutputFormat(s->codec);
524 if ((ret = mediacodec_dec_parse_format(avctx, s)) < 0) {
525 av_log(avctx, AV_LOG_ERROR,
526 "Failed to configure context\n");
531 av_log(avctx, AV_LOG_DEBUG, "MediaCodec %p started successfully\n", s->codec);
536 av_log(avctx, AV_LOG_ERROR, "MediaCodec %p failed to start\n", s->codec);
537 ff_mediacodec_dec_close(avctx, s);
541 int ff_mediacodec_dec_send(AVCodecContext *avctx, MediaCodecDecContext *s,
545 int need_draining = 0;
549 FFAMediaCodec *codec = s->codec;
551 int64_t input_dequeue_timeout_us = INPUT_DEQUEUE_TIMEOUT_US;
554 av_log(avctx, AV_LOG_ERROR, "Decoder is flushing and cannot accept new buffer "
555 "until all output buffers have been released\n");
556 return AVERROR_EXTERNAL;
559 if (pkt->size == 0) {
563 if (s->draining && s->eos) {
567 while (offset < pkt->size || (need_draining && !s->draining)) {
569 index = ff_AMediaCodec_dequeueInputBuffer(codec, input_dequeue_timeout_us);
570 if (ff_AMediaCodec_infoTryAgainLater(codec, index)) {
571 av_log(avctx, AV_LOG_TRACE, "Failed to dequeue input buffer, try again later..\n");
576 av_log(avctx, AV_LOG_ERROR, "Failed to dequeue input buffer (status=%zd)\n", index);
577 return AVERROR_EXTERNAL;
580 data = ff_AMediaCodec_getInputBuffer(codec, index, &size);
582 av_log(avctx, AV_LOG_ERROR, "Failed to get input buffer\n");
583 return AVERROR_EXTERNAL;
587 int64_t pts = pkt->pts;
588 uint32_t flags = ff_AMediaCodec_getBufferFlagEndOfStream(codec);
591 pts = av_rescale_q(pts, avctx->pkt_timebase, av_make_q(1, 1000000));
594 av_log(avctx, AV_LOG_DEBUG, "Sending End Of Stream signal\n");
596 status = ff_AMediaCodec_queueInputBuffer(codec, index, 0, 0, pts, flags);
598 av_log(avctx, AV_LOG_ERROR, "Failed to queue input empty buffer (status = %d)\n", status);
599 return AVERROR_EXTERNAL;
602 av_log(avctx, AV_LOG_TRACE,
603 "Queued input buffer %zd size=%zd ts=%"PRIi64"\n", index, size, pts);
608 int64_t pts = pkt->pts;
610 size = FFMIN(pkt->size - offset, size);
611 memcpy(data, pkt->data + offset, size);
614 if (avctx->pkt_timebase.num && avctx->pkt_timebase.den) {
615 pts = av_rescale_q(pts, avctx->pkt_timebase, av_make_q(1, 1000000));
618 status = ff_AMediaCodec_queueInputBuffer(codec, index, 0, size, pts, 0);
620 av_log(avctx, AV_LOG_ERROR, "Failed to queue input buffer (status = %d)\n", status);
621 return AVERROR_EXTERNAL;
624 av_log(avctx, AV_LOG_TRACE,
625 "Queued input buffer %zd size=%zd ts=%"PRIi64"\n", index, size, pts);
630 return AVERROR(EAGAIN);
634 int ff_mediacodec_dec_receive(AVCodecContext *avctx, MediaCodecDecContext *s,
635 AVFrame *frame, bool wait)
641 FFAMediaCodec *codec = s->codec;
642 FFAMediaCodecBufferInfo info = { 0 };
644 int64_t output_dequeue_timeout_us = OUTPUT_DEQUEUE_TIMEOUT_US;
646 if (s->draining && s->eos) {
651 /* If the codec is flushing or need to be flushed, block for a fair
652 * amount of time to ensure we got a frame */
653 output_dequeue_timeout_us = OUTPUT_DEQUEUE_BLOCK_TIMEOUT_US;
654 } else if (s->output_buffer_count == 0 || !wait) {
655 /* If the codec hasn't produced any frames, do not block so we
656 * can push data to it as fast as possible, and get the first
658 output_dequeue_timeout_us = 0;
661 index = ff_AMediaCodec_dequeueOutputBuffer(codec, &info, output_dequeue_timeout_us);
663 av_log(avctx, AV_LOG_TRACE, "Got output buffer %zd"
664 " offset=%" PRIi32 " size=%" PRIi32 " ts=%" PRIi64
665 " flags=%" PRIu32 "\n", index, info.offset, info.size,
666 info.presentationTimeUs, info.flags);
668 if (info.flags & ff_AMediaCodec_getBufferFlagEndOfStream(codec)) {
674 if ((ret = mediacodec_wrap_hw_buffer(avctx, s, index, &info, frame)) < 0) {
675 av_log(avctx, AV_LOG_ERROR, "Failed to wrap MediaCodec buffer\n");
679 data = ff_AMediaCodec_getOutputBuffer(codec, index, &size);
681 av_log(avctx, AV_LOG_ERROR, "Failed to get output buffer\n");
682 return AVERROR_EXTERNAL;
685 if ((ret = mediacodec_wrap_sw_buffer(avctx, s, data, size, index, &info, frame)) < 0) {
686 av_log(avctx, AV_LOG_ERROR, "Failed to wrap MediaCodec buffer\n");
691 s->output_buffer_count++;
694 status = ff_AMediaCodec_releaseOutputBuffer(codec, index, 0);
696 av_log(avctx, AV_LOG_ERROR, "Failed to release output buffer\n");
700 } else if (ff_AMediaCodec_infoOutputFormatChanged(codec, index)) {
704 status = ff_AMediaFormat_delete(s->format);
706 av_log(avctx, AV_LOG_ERROR, "Failed to delete MediaFormat %p\n", s->format);
710 s->format = ff_AMediaCodec_getOutputFormat(codec);
712 av_log(avctx, AV_LOG_ERROR, "Failed to get output format\n");
713 return AVERROR_EXTERNAL;
716 format = ff_AMediaFormat_toString(s->format);
718 return AVERROR_EXTERNAL;
720 av_log(avctx, AV_LOG_INFO, "Output MediaFormat changed to %s\n", format);
723 if ((ret = mediacodec_dec_parse_format(avctx, s)) < 0) {
727 } else if (ff_AMediaCodec_infoOutputBuffersChanged(codec, index)) {
728 ff_AMediaCodec_cleanOutputBuffers(codec);
729 } else if (ff_AMediaCodec_infoTryAgainLater(codec, index)) {
731 av_log(avctx, AV_LOG_ERROR, "Failed to dequeue output buffer within %" PRIi64 "ms "
732 "while draining remaining frames, output will probably lack frames\n",
733 output_dequeue_timeout_us / 1000);
735 av_log(avctx, AV_LOG_DEBUG, "No output buffer available, try again later\n");
738 av_log(avctx, AV_LOG_ERROR, "Failed to dequeue output buffer (status=%zd)\n", index);
739 return AVERROR_EXTERNAL;
742 return AVERROR(EAGAIN);
745 int ff_mediacodec_dec_flush(AVCodecContext *avctx, MediaCodecDecContext *s)
747 if (!s->surface || atomic_load(&s->refcount) == 1) {
750 /* No frames (holding a reference to the codec) are retained by the
751 * user, thus we can flush the codec and returns accordingly */
752 if ((ret = mediacodec_dec_flush_codec(avctx, s)) < 0) {
763 int ff_mediacodec_dec_close(AVCodecContext *avctx, MediaCodecDecContext *s)
765 ff_mediacodec_dec_unref(s);
770 int ff_mediacodec_dec_is_flushing(AVCodecContext *avctx, MediaCodecDecContext *s)