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 atomic_fetch_sub(&ctx->hw_buffer_count, 1);
183 av_log(ctx->avctx, AV_LOG_DEBUG,
184 "Releasing output buffer %zd (%p) ts=%"PRId64" on free() [%d pending]\n",
185 buffer->index, buffer, buffer->pts, atomic_load(&ctx->hw_buffer_count));
186 ff_AMediaCodec_releaseOutputBuffer(ctx->codec, buffer->index, 0);
189 if (ctx->delay_flush)
190 ff_mediacodec_dec_unref(ctx);
194 static int mediacodec_wrap_hw_buffer(AVCodecContext *avctx,
195 MediaCodecDecContext *s,
197 FFAMediaCodecBufferInfo *info,
202 AVMediaCodecBuffer *buffer = NULL;
204 frame->buf[0] = NULL;
205 frame->width = avctx->width;
206 frame->height = avctx->height;
207 frame->format = avctx->pix_fmt;
208 frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
210 if (avctx->pkt_timebase.num && avctx->pkt_timebase.den) {
211 frame->pts = av_rescale_q(info->presentationTimeUs,
213 avctx->pkt_timebase);
215 frame->pts = info->presentationTimeUs;
218 FF_DISABLE_DEPRECATION_WARNINGS
219 frame->pkt_pts = frame->pts;
220 FF_ENABLE_DEPRECATION_WARNINGS
222 frame->pkt_dts = AV_NOPTS_VALUE;
224 buffer = av_mallocz(sizeof(AVMediaCodecBuffer));
226 ret = AVERROR(ENOMEM);
230 atomic_init(&buffer->released, 0);
232 frame->buf[0] = av_buffer_create(NULL,
234 mediacodec_buffer_release,
236 AV_BUFFER_FLAG_READONLY);
238 if (!frame->buf[0]) {
239 ret = AVERROR(ENOMEM);
245 buffer->serial = atomic_load(&s->serial);
247 ff_mediacodec_dec_ref(s);
249 buffer->index = index;
250 buffer->pts = info->presentationTimeUs;
252 frame->data[3] = (uint8_t *)buffer;
254 atomic_fetch_add(&s->hw_buffer_count, 1);
255 av_log(avctx, AV_LOG_DEBUG,
256 "Wrapping output buffer %zd (%p) ts=%"PRId64" [%d pending]\n",
257 buffer->index, buffer, buffer->pts, atomic_load(&s->hw_buffer_count));
262 av_buffer_unref(&frame->buf[0]);
263 status = ff_AMediaCodec_releaseOutputBuffer(s->codec, index, 0);
265 av_log(avctx, AV_LOG_ERROR, "Failed to release output buffer\n");
266 ret = AVERROR_EXTERNAL;
272 static int mediacodec_wrap_sw_buffer(AVCodecContext *avctx,
273 MediaCodecDecContext *s,
277 FFAMediaCodecBufferInfo *info,
283 frame->width = avctx->width;
284 frame->height = avctx->height;
285 frame->format = avctx->pix_fmt;
287 /* MediaCodec buffers needs to be copied to our own refcounted buffers
288 * because the flush command invalidates all input and output buffers.
290 if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
291 av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer\n");
295 /* Override frame->pkt_pts as ff_get_buffer will override its value based
296 * on the last avpacket received which is not in sync with the frame:
297 * * N avpackets can be pushed before 1 frame is actually returned
298 * * 0-sized avpackets are pushed to flush remaining frames at EOS */
299 if (avctx->pkt_timebase.num && avctx->pkt_timebase.den) {
300 frame->pts = av_rescale_q(info->presentationTimeUs,
302 avctx->pkt_timebase);
304 frame->pts = info->presentationTimeUs;
307 FF_DISABLE_DEPRECATION_WARNINGS
308 frame->pkt_pts = frame->pts;
309 FF_ENABLE_DEPRECATION_WARNINGS
311 frame->pkt_dts = AV_NOPTS_VALUE;
313 av_log(avctx, AV_LOG_TRACE,
314 "Frame: width=%d stride=%d height=%d slice-height=%d "
315 "crop-top=%d crop-bottom=%d crop-left=%d crop-right=%d encoder=%s "
316 "destination linesizes=%d,%d,%d\n" ,
317 avctx->width, s->stride, avctx->height, s->slice_height,
318 s->crop_top, s->crop_bottom, s->crop_left, s->crop_right, s->codec_name,
319 frame->linesize[0], frame->linesize[1], frame->linesize[2]);
321 switch (s->color_format) {
322 case COLOR_FormatYUV420Planar:
323 ff_mediacodec_sw_buffer_copy_yuv420_planar(avctx, s, data, size, info, frame);
325 case COLOR_FormatYUV420SemiPlanar:
326 case COLOR_QCOM_FormatYUV420SemiPlanar:
327 case COLOR_QCOM_FormatYUV420SemiPlanar32m:
328 ff_mediacodec_sw_buffer_copy_yuv420_semi_planar(avctx, s, data, size, info, frame);
330 case COLOR_TI_FormatYUV420PackedSemiPlanar:
331 case COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced:
332 ff_mediacodec_sw_buffer_copy_yuv420_packed_semi_planar(avctx, s, data, size, info, frame);
334 case COLOR_QCOM_FormatYUV420PackedSemiPlanar64x32Tile2m8ka:
335 ff_mediacodec_sw_buffer_copy_yuv420_packed_semi_planar_64x32Tile2m8ka(avctx, s, data, size, info, frame);
338 av_log(avctx, AV_LOG_ERROR, "Unsupported color format 0x%x (value=%d)\n",
339 s->color_format, s->color_format);
340 ret = AVERROR(EINVAL);
346 status = ff_AMediaCodec_releaseOutputBuffer(s->codec, index, 0);
348 av_log(avctx, AV_LOG_ERROR, "Failed to release output buffer\n");
349 ret = AVERROR_EXTERNAL;
355 #define AMEDIAFORMAT_GET_INT32(name, key, mandatory) do { \
357 if (ff_AMediaFormat_getInt32(s->format, key, &value)) { \
359 } else if (mandatory) { \
360 av_log(avctx, AV_LOG_ERROR, "Could not get %s from format %s\n", key, format); \
361 ret = AVERROR_EXTERNAL; \
366 static int mediacodec_dec_parse_format(AVCodecContext *avctx, MediaCodecDecContext *s)
374 av_log(avctx, AV_LOG_ERROR, "Output MediaFormat is not set\n");
375 return AVERROR(EINVAL);
378 format = ff_AMediaFormat_toString(s->format);
380 return AVERROR_EXTERNAL;
382 av_log(avctx, AV_LOG_DEBUG, "Parsing MediaFormat %s\n", format);
384 /* Mandatory fields */
385 AMEDIAFORMAT_GET_INT32(s->width, "width", 1);
386 AMEDIAFORMAT_GET_INT32(s->height, "height", 1);
388 AMEDIAFORMAT_GET_INT32(s->stride, "stride", 0);
389 s->stride = s->stride > 0 ? s->stride : s->width;
391 AMEDIAFORMAT_GET_INT32(s->slice_height, "slice-height", 0);
393 if (strstr(s->codec_name, "OMX.Nvidia.") && s->slice_height == 0) {
394 s->slice_height = FFALIGN(s->height, 16);
395 } else if (strstr(s->codec_name, "OMX.SEC.avc.dec")) {
396 s->slice_height = avctx->height;
397 s->stride = avctx->width;
398 } else if (s->slice_height == 0) {
399 s->slice_height = s->height;
402 AMEDIAFORMAT_GET_INT32(s->color_format, "color-format", 1);
403 avctx->pix_fmt = mcdec_map_color_format(avctx, s, s->color_format);
404 if (avctx->pix_fmt == AV_PIX_FMT_NONE) {
405 av_log(avctx, AV_LOG_ERROR, "Output color format is not supported\n");
406 ret = AVERROR(EINVAL);
410 /* Optional fields */
411 AMEDIAFORMAT_GET_INT32(s->crop_top, "crop-top", 0);
412 AMEDIAFORMAT_GET_INT32(s->crop_bottom, "crop-bottom", 0);
413 AMEDIAFORMAT_GET_INT32(s->crop_left, "crop-left", 0);
414 AMEDIAFORMAT_GET_INT32(s->crop_right, "crop-right", 0);
416 width = s->crop_right + 1 - s->crop_left;
417 height = s->crop_bottom + 1 - s->crop_top;
419 AMEDIAFORMAT_GET_INT32(s->display_width, "display-width", 0);
420 AMEDIAFORMAT_GET_INT32(s->display_height, "display-height", 0);
422 if (s->display_width && s->display_height) {
423 AVRational sar = av_div_q(
424 (AVRational){ s->display_width, s->display_height },
425 (AVRational){ width, height });
426 ff_set_sar(avctx, sar);
429 av_log(avctx, AV_LOG_INFO,
430 "Output crop parameters top=%d bottom=%d left=%d right=%d, "
431 "resulting dimensions width=%d height=%d\n",
432 s->crop_top, s->crop_bottom, s->crop_left, s->crop_right,
436 return ff_set_dimensions(avctx, width, height);
442 static int mediacodec_dec_flush_codec(AVCodecContext *avctx, MediaCodecDecContext *s)
444 FFAMediaCodec *codec = s->codec;
447 s->output_buffer_count = 0;
452 atomic_fetch_add(&s->serial, 1);
453 atomic_init(&s->hw_buffer_count, 0);
454 s->current_input_buffer = -1;
456 status = ff_AMediaCodec_flush(codec);
458 av_log(avctx, AV_LOG_ERROR, "Failed to flush codec\n");
459 return AVERROR_EXTERNAL;
465 int ff_mediacodec_dec_init(AVCodecContext *avctx, MediaCodecDecContext *s,
466 const char *mime, FFAMediaFormat *format)
472 enum AVPixelFormat pix_fmt;
473 static const enum AVPixelFormat pix_fmts[] = {
474 AV_PIX_FMT_MEDIACODEC,
479 atomic_init(&s->refcount, 1);
480 atomic_init(&s->hw_buffer_count, 0);
481 atomic_init(&s->serial, 1);
482 s->current_input_buffer = -1;
484 pix_fmt = ff_get_format(avctx, pix_fmts);
485 if (pix_fmt == AV_PIX_FMT_MEDIACODEC) {
486 AVMediaCodecContext *user_ctx = avctx->hwaccel_context;
488 if (avctx->hw_device_ctx) {
489 AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)(avctx->hw_device_ctx->data);
490 if (device_ctx->type == AV_HWDEVICE_TYPE_MEDIACODEC) {
491 if (device_ctx->hwctx) {
492 AVMediaCodecDeviceContext *mediacodec_ctx = (AVMediaCodecDeviceContext *)device_ctx->hwctx;
493 s->surface = ff_mediacodec_surface_ref(mediacodec_ctx->surface, avctx);
494 av_log(avctx, AV_LOG_INFO, "Using surface %p\n", s->surface);
499 if (!s->surface && user_ctx && user_ctx->surface) {
500 s->surface = ff_mediacodec_surface_ref(user_ctx->surface, avctx);
501 av_log(avctx, AV_LOG_INFO, "Using surface %p\n", s->surface);
505 profile = ff_AMediaCodecProfile_getProfileFromAVCodecContext(avctx);
507 av_log(avctx, AV_LOG_WARNING, "Unsupported or unknown profile\n");
510 s->codec_name = ff_AMediaCodecList_getCodecNameByType(mime, profile, 0, avctx);
511 if (!s->codec_name) {
512 ret = AVERROR_EXTERNAL;
516 av_log(avctx, AV_LOG_DEBUG, "Found decoder %s\n", s->codec_name);
517 s->codec = ff_AMediaCodec_createCodecByName(s->codec_name);
519 av_log(avctx, AV_LOG_ERROR, "Failed to create media decoder for type %s and name %s\n", mime, s->codec_name);
520 ret = AVERROR_EXTERNAL;
524 status = ff_AMediaCodec_configure(s->codec, format, s->surface, NULL, 0);
526 char *desc = ff_AMediaFormat_toString(format);
527 av_log(avctx, AV_LOG_ERROR,
528 "Failed to configure codec (status = %d) with format %s\n",
532 ret = AVERROR_EXTERNAL;
536 status = ff_AMediaCodec_start(s->codec);
538 char *desc = ff_AMediaFormat_toString(format);
539 av_log(avctx, AV_LOG_ERROR,
540 "Failed to start codec (status = %d) with format %s\n",
543 ret = AVERROR_EXTERNAL;
547 s->format = ff_AMediaCodec_getOutputFormat(s->codec);
549 if ((ret = mediacodec_dec_parse_format(avctx, s)) < 0) {
550 av_log(avctx, AV_LOG_ERROR,
551 "Failed to configure context\n");
556 av_log(avctx, AV_LOG_DEBUG, "MediaCodec %p started successfully\n", s->codec);
561 av_log(avctx, AV_LOG_ERROR, "MediaCodec %p failed to start\n", s->codec);
562 ff_mediacodec_dec_close(avctx, s);
566 int ff_mediacodec_dec_send(AVCodecContext *avctx, MediaCodecDecContext *s,
567 AVPacket *pkt, bool wait)
570 int need_draining = 0;
572 ssize_t index = s->current_input_buffer;
574 FFAMediaCodec *codec = s->codec;
576 int64_t input_dequeue_timeout_us = wait ? INPUT_DEQUEUE_TIMEOUT_US : 0;
580 av_log(avctx, AV_LOG_ERROR, "Decoder is flushing and cannot accept new buffer "
581 "until all output buffers have been released\n");
582 return AVERROR_EXTERNAL;
585 if (pkt->size == 0) {
589 if (s->draining && s->eos) {
593 while (offset < pkt->size || (need_draining && !s->draining)) {
595 index = ff_AMediaCodec_dequeueInputBuffer(codec, input_dequeue_timeout_us);
596 if (ff_AMediaCodec_infoTryAgainLater(codec, index)) {
597 av_log(avctx, AV_LOG_TRACE, "No input buffer available, try again later\n");
602 av_log(avctx, AV_LOG_ERROR, "Failed to dequeue input buffer (status=%zd)\n", index);
603 return AVERROR_EXTERNAL;
606 s->current_input_buffer = -1;
608 data = ff_AMediaCodec_getInputBuffer(codec, index, &size);
610 av_log(avctx, AV_LOG_ERROR, "Failed to get input buffer\n");
611 return AVERROR_EXTERNAL;
615 if (pts != AV_NOPTS_VALUE && avctx->pkt_timebase.num && avctx->pkt_timebase.den) {
616 pts = av_rescale_q(pts, avctx->pkt_timebase, AV_TIME_BASE_Q);
620 uint32_t flags = ff_AMediaCodec_getBufferFlagEndOfStream(codec);
622 av_log(avctx, AV_LOG_DEBUG, "Sending End Of Stream signal\n");
624 status = ff_AMediaCodec_queueInputBuffer(codec, index, 0, 0, pts, flags);
626 av_log(avctx, AV_LOG_ERROR, "Failed to queue input empty buffer (status = %d)\n", status);
627 return AVERROR_EXTERNAL;
630 av_log(avctx, AV_LOG_TRACE,
631 "Queued input buffer %zd size=%zd ts=%"PRIi64"\n", index, size, pts);
636 size = FFMIN(pkt->size - offset, size);
637 memcpy(data, pkt->data + offset, size);
640 status = ff_AMediaCodec_queueInputBuffer(codec, index, 0, size, pts, 0);
642 av_log(avctx, AV_LOG_ERROR, "Failed to queue input buffer (status = %d)\n", status);
643 return AVERROR_EXTERNAL;
646 av_log(avctx, AV_LOG_TRACE,
647 "Queued input buffer %zd size=%zd ts=%"PRIi64"\n", index, size, pts);
652 return AVERROR(EAGAIN);
656 int ff_mediacodec_dec_receive(AVCodecContext *avctx, MediaCodecDecContext *s,
657 AVFrame *frame, bool wait)
663 FFAMediaCodec *codec = s->codec;
664 FFAMediaCodecBufferInfo info = { 0 };
666 int64_t output_dequeue_timeout_us = OUTPUT_DEQUEUE_TIMEOUT_US;
668 if (s->draining && s->eos) {
673 /* If the codec is flushing or need to be flushed, block for a fair
674 * amount of time to ensure we got a frame */
675 output_dequeue_timeout_us = OUTPUT_DEQUEUE_BLOCK_TIMEOUT_US;
676 } else if (s->output_buffer_count == 0 || !wait) {
677 /* If the codec hasn't produced any frames, do not block so we
678 * can push data to it as fast as possible, and get the first
680 output_dequeue_timeout_us = 0;
683 index = ff_AMediaCodec_dequeueOutputBuffer(codec, &info, output_dequeue_timeout_us);
685 av_log(avctx, AV_LOG_TRACE, "Got output buffer %zd"
686 " offset=%" PRIi32 " size=%" PRIi32 " ts=%" PRIi64
687 " flags=%" PRIu32 "\n", index, info.offset, info.size,
688 info.presentationTimeUs, info.flags);
690 if (info.flags & ff_AMediaCodec_getBufferFlagEndOfStream(codec)) {
696 if ((ret = mediacodec_wrap_hw_buffer(avctx, s, index, &info, frame)) < 0) {
697 av_log(avctx, AV_LOG_ERROR, "Failed to wrap MediaCodec buffer\n");
701 data = ff_AMediaCodec_getOutputBuffer(codec, index, &size);
703 av_log(avctx, AV_LOG_ERROR, "Failed to get output buffer\n");
704 return AVERROR_EXTERNAL;
707 if ((ret = mediacodec_wrap_sw_buffer(avctx, s, data, size, index, &info, frame)) < 0) {
708 av_log(avctx, AV_LOG_ERROR, "Failed to wrap MediaCodec buffer\n");
713 s->output_buffer_count++;
716 status = ff_AMediaCodec_releaseOutputBuffer(codec, index, 0);
718 av_log(avctx, AV_LOG_ERROR, "Failed to release output buffer\n");
722 } else if (ff_AMediaCodec_infoOutputFormatChanged(codec, index)) {
726 status = ff_AMediaFormat_delete(s->format);
728 av_log(avctx, AV_LOG_ERROR, "Failed to delete MediaFormat %p\n", s->format);
732 s->format = ff_AMediaCodec_getOutputFormat(codec);
734 av_log(avctx, AV_LOG_ERROR, "Failed to get output format\n");
735 return AVERROR_EXTERNAL;
738 format = ff_AMediaFormat_toString(s->format);
740 return AVERROR_EXTERNAL;
742 av_log(avctx, AV_LOG_INFO, "Output MediaFormat changed to %s\n", format);
745 if ((ret = mediacodec_dec_parse_format(avctx, s)) < 0) {
749 } else if (ff_AMediaCodec_infoOutputBuffersChanged(codec, index)) {
750 ff_AMediaCodec_cleanOutputBuffers(codec);
751 } else if (ff_AMediaCodec_infoTryAgainLater(codec, index)) {
753 av_log(avctx, AV_LOG_ERROR, "Failed to dequeue output buffer within %" PRIi64 "ms "
754 "while draining remaining frames, output will probably lack frames\n",
755 output_dequeue_timeout_us / 1000);
757 av_log(avctx, AV_LOG_TRACE, "No output buffer available, try again later\n");
760 av_log(avctx, AV_LOG_ERROR, "Failed to dequeue output buffer (status=%zd)\n", index);
761 return AVERROR_EXTERNAL;
764 return AVERROR(EAGAIN);
768 * ff_mediacodec_dec_flush returns 0 if the flush cannot be performed on
769 * the codec (because the user retains frames). The codec stays in the
772 * ff_mediacodec_dec_flush returns 1 if the flush can actually be
773 * performed on the codec. The codec leaves the flushing state and can
774 * process again packets.
776 * ff_mediacodec_dec_flush returns a negative value if an error has
779 int ff_mediacodec_dec_flush(AVCodecContext *avctx, MediaCodecDecContext *s)
781 if (!s->surface || atomic_load(&s->refcount) == 1) {
784 /* No frames (holding a reference to the codec) are retained by the
785 * user, thus we can flush the codec and returns accordingly */
786 if ((ret = mediacodec_dec_flush_codec(avctx, s)) < 0) {
797 int ff_mediacodec_dec_close(AVCodecContext *avctx, MediaCodecDecContext *s)
799 ff_mediacodec_dec_unref(s);
804 int ff_mediacodec_dec_is_flushing(AVCodecContext *avctx, MediaCodecDecContext *s)