/* * Android MediaCodec decoder * * Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <string.h> #include <sys/types.h> #include "libavutil/common.h" #include "libavutil/hwcontext_mediacodec.h" #include "libavutil/mem.h" #include "libavutil/log.h" #include "libavutil/pixfmt.h" #include "libavutil/time.h" #include "libavutil/timestamp.h" #include "avcodec.h" #include "internal.h" #include "mediacodec.h" #include "mediacodec_surface.h" #include "mediacodec_sw_buffer.h" #include "mediacodec_wrapper.h" #include "mediacodecdec_common.h" /** * OMX.k3.video.decoder.avc, OMX.NVIDIA.* OMX.SEC.avc.dec and OMX.google * codec workarounds used in various place are taken from the Gstreamer * project. * * Gstreamer references: * https://cgit.freedesktop.org/gstreamer/gst-plugins-bad/tree/sys/androidmedia/ * * Gstreamer copyright notice: * * Copyright (C) 2012, Collabora Ltd. * Author: Sebastian Dröge <sebastian.droege@collabora.co.uk> * * Copyright (C) 2012, Rafaël Carré <funman@videolanorg> * * Copyright (C) 2015, Sebastian Dröge <sebastian@centricular.com> * * Copyright (C) 2014-2015, Collabora Ltd. * Author: Matthieu Bouron <matthieu.bouron@gcollabora.com> * * Copyright (C) 2015, Edward Hervey * Author: Edward Hervey <bilboed@gmail.com> * * Copyright (C) 2015, Matthew Waters <matthew@centricular.com> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation * version 2.1 of the License. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * */ #define INPUT_DEQUEUE_TIMEOUT_US 8000 #define OUTPUT_DEQUEUE_TIMEOUT_US 8000 #define OUTPUT_DEQUEUE_BLOCK_TIMEOUT_US 1000000 enum { COLOR_FormatYUV420Planar = 0x13, COLOR_FormatYUV420SemiPlanar = 0x15, COLOR_FormatYCbYCr = 0x19, COLOR_FormatAndroidOpaque = 0x7F000789, COLOR_QCOM_FormatYUV420SemiPlanar = 0x7fa30c00, COLOR_QCOM_FormatYUV420SemiPlanar32m = 0x7fa30c04, COLOR_QCOM_FormatYUV420PackedSemiPlanar64x32Tile2m8ka = 0x7fa30c03, COLOR_TI_FormatYUV420PackedSemiPlanar = 0x7f000100, COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced = 0x7f000001, }; static const struct { int color_format; enum AVPixelFormat pix_fmt; } color_formats[] = { { COLOR_FormatYUV420Planar, AV_PIX_FMT_YUV420P }, { COLOR_FormatYUV420SemiPlanar, AV_PIX_FMT_NV12 }, { COLOR_QCOM_FormatYUV420SemiPlanar, AV_PIX_FMT_NV12 }, { COLOR_QCOM_FormatYUV420SemiPlanar32m, AV_PIX_FMT_NV12 }, { COLOR_QCOM_FormatYUV420PackedSemiPlanar64x32Tile2m8ka, AV_PIX_FMT_NV12 }, { COLOR_TI_FormatYUV420PackedSemiPlanar, AV_PIX_FMT_NV12 }, { COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced, AV_PIX_FMT_NV12 }, { 0 } }; static enum AVPixelFormat mcdec_map_color_format(AVCodecContext *avctx, MediaCodecDecContext *s, int color_format) { int i; enum AVPixelFormat ret = AV_PIX_FMT_NONE; if (s->surface) { return AV_PIX_FMT_MEDIACODEC; } if (!strcmp(s->codec_name, "OMX.k3.video.decoder.avc") && color_format == COLOR_FormatYCbYCr) { s->color_format = color_format = COLOR_TI_FormatYUV420PackedSemiPlanar; } for (i = 0; i < FF_ARRAY_ELEMS(color_formats); i++) { if (color_formats[i].color_format == color_format) { return color_formats[i].pix_fmt; } } av_log(avctx, AV_LOG_ERROR, "Output color format 0x%x (value=%d) is not supported\n", color_format, color_format); return ret; } static void ff_mediacodec_dec_ref(MediaCodecDecContext *s) { atomic_fetch_add(&s->refcount, 1); } static void ff_mediacodec_dec_unref(MediaCodecDecContext *s) { if (!s) return; if (atomic_fetch_sub(&s->refcount, 1) == 1) { if (s->codec) { ff_AMediaCodec_delete(s->codec); s->codec = NULL; } if (s->format) { ff_AMediaFormat_delete(s->format); s->format = NULL; } if (s->surface) { ff_mediacodec_surface_unref(s->surface, NULL); s->surface = NULL; } av_freep(&s->codec_name); av_freep(&s); } } static void mediacodec_buffer_release(void *opaque, uint8_t *data) { AVMediaCodecBuffer *buffer = opaque; MediaCodecDecContext *ctx = buffer->ctx; int released = atomic_load(&buffer->released); if (!released && (ctx->delay_flush || buffer->serial == atomic_load(&ctx->serial))) { atomic_fetch_sub(&ctx->hw_buffer_count, 1); av_log(ctx->avctx, AV_LOG_DEBUG, "Releasing output buffer %zd (%p) ts=%"PRId64" on free() [%d pending]\n", buffer->index, buffer, buffer->pts, atomic_load(&ctx->hw_buffer_count)); ff_AMediaCodec_releaseOutputBuffer(ctx->codec, buffer->index, 0); } if (ctx->delay_flush) ff_mediacodec_dec_unref(ctx); av_freep(&buffer); } static int mediacodec_wrap_hw_buffer(AVCodecContext *avctx, MediaCodecDecContext *s, ssize_t index, FFAMediaCodecBufferInfo *info, AVFrame *frame) { int ret = 0; int status = 0; AVMediaCodecBuffer *buffer = NULL; frame->buf[0] = NULL; frame->width = avctx->width; frame->height = avctx->height; frame->format = avctx->pix_fmt; frame->sample_aspect_ratio = avctx->sample_aspect_ratio; if (avctx->pkt_timebase.num && avctx->pkt_timebase.den) { frame->pts = av_rescale_q(info->presentationTimeUs, AV_TIME_BASE_Q, avctx->pkt_timebase); } else { frame->pts = info->presentationTimeUs; } #if FF_API_PKT_PTS FF_DISABLE_DEPRECATION_WARNINGS frame->pkt_pts = frame->pts; FF_ENABLE_DEPRECATION_WARNINGS #endif frame->pkt_dts = AV_NOPTS_VALUE; buffer = av_mallocz(sizeof(AVMediaCodecBuffer)); if (!buffer) { ret = AVERROR(ENOMEM); goto fail; } atomic_init(&buffer->released, 0); frame->buf[0] = av_buffer_create(NULL, 0, mediacodec_buffer_release, buffer, AV_BUFFER_FLAG_READONLY); if (!frame->buf[0]) { ret = AVERROR(ENOMEM); goto fail; } buffer->ctx = s; buffer->serial = atomic_load(&s->serial); if (s->delay_flush) ff_mediacodec_dec_ref(s); buffer->index = index; buffer->pts = info->presentationTimeUs; frame->data[3] = (uint8_t *)buffer; atomic_fetch_add(&s->hw_buffer_count, 1); av_log(avctx, AV_LOG_DEBUG, "Wrapping output buffer %zd (%p) ts=%"PRId64" [%d pending]\n", buffer->index, buffer, buffer->pts, atomic_load(&s->hw_buffer_count)); return 0; fail: av_freep(buffer); av_buffer_unref(&frame->buf[0]); status = ff_AMediaCodec_releaseOutputBuffer(s->codec, index, 0); if (status < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to release output buffer\n"); ret = AVERROR_EXTERNAL; } return ret; } static int mediacodec_wrap_sw_buffer(AVCodecContext *avctx, MediaCodecDecContext *s, uint8_t *data, size_t size, ssize_t index, FFAMediaCodecBufferInfo *info, AVFrame *frame) { int ret = 0; int status = 0; frame->width = avctx->width; frame->height = avctx->height; frame->format = avctx->pix_fmt; /* MediaCodec buffers needs to be copied to our own refcounted buffers * because the flush command invalidates all input and output buffers. */ if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) { av_log(avctx, AV_LOG_ERROR, "Could not allocate buffer\n"); goto done; } /* Override frame->pkt_pts as ff_get_buffer will override its value based * on the last avpacket received which is not in sync with the frame: * * N avpackets can be pushed before 1 frame is actually returned * * 0-sized avpackets are pushed to flush remaining frames at EOS */ if (avctx->pkt_timebase.num && avctx->pkt_timebase.den) { frame->pts = av_rescale_q(info->presentationTimeUs, AV_TIME_BASE_Q, avctx->pkt_timebase); } else { frame->pts = info->presentationTimeUs; } #if FF_API_PKT_PTS FF_DISABLE_DEPRECATION_WARNINGS frame->pkt_pts = frame->pts; FF_ENABLE_DEPRECATION_WARNINGS #endif frame->pkt_dts = AV_NOPTS_VALUE; av_log(avctx, AV_LOG_TRACE, "Frame: width=%d stride=%d height=%d slice-height=%d " "crop-top=%d crop-bottom=%d crop-left=%d crop-right=%d encoder=%s " "destination linesizes=%d,%d,%d\n" , avctx->width, s->stride, avctx->height, s->slice_height, s->crop_top, s->crop_bottom, s->crop_left, s->crop_right, s->codec_name, frame->linesize[0], frame->linesize[1], frame->linesize[2]); switch (s->color_format) { case COLOR_FormatYUV420Planar: ff_mediacodec_sw_buffer_copy_yuv420_planar(avctx, s, data, size, info, frame); break; case COLOR_FormatYUV420SemiPlanar: case COLOR_QCOM_FormatYUV420SemiPlanar: case COLOR_QCOM_FormatYUV420SemiPlanar32m: ff_mediacodec_sw_buffer_copy_yuv420_semi_planar(avctx, s, data, size, info, frame); break; case COLOR_TI_FormatYUV420PackedSemiPlanar: case COLOR_TI_FormatYUV420PackedSemiPlanarInterlaced: ff_mediacodec_sw_buffer_copy_yuv420_packed_semi_planar(avctx, s, data, size, info, frame); break; case COLOR_QCOM_FormatYUV420PackedSemiPlanar64x32Tile2m8ka: ff_mediacodec_sw_buffer_copy_yuv420_packed_semi_planar_64x32Tile2m8ka(avctx, s, data, size, info, frame); break; default: av_log(avctx, AV_LOG_ERROR, "Unsupported color format 0x%x (value=%d)\n", s->color_format, s->color_format); ret = AVERROR(EINVAL); goto done; } ret = 0; done: status = ff_AMediaCodec_releaseOutputBuffer(s->codec, index, 0); if (status < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to release output buffer\n"); ret = AVERROR_EXTERNAL; } return ret; } #define AMEDIAFORMAT_GET_INT32(name, key, mandatory) do { \ int32_t value = 0; \ if (ff_AMediaFormat_getInt32(s->format, key, &value)) { \ (name) = value; \ } else if (mandatory) { \ av_log(avctx, AV_LOG_ERROR, "Could not get %s from format %s\n", key, format); \ ret = AVERROR_EXTERNAL; \ goto fail; \ } \ } while (0) \ static int mediacodec_dec_parse_format(AVCodecContext *avctx, MediaCodecDecContext *s) { int ret = 0; int width = 0; int height = 0; char *format = NULL; if (!s->format) { av_log(avctx, AV_LOG_ERROR, "Output MediaFormat is not set\n"); return AVERROR(EINVAL); } format = ff_AMediaFormat_toString(s->format); if (!format) { return AVERROR_EXTERNAL; } av_log(avctx, AV_LOG_DEBUG, "Parsing MediaFormat %s\n", format); /* Mandatory fields */ AMEDIAFORMAT_GET_INT32(s->width, "width", 1); AMEDIAFORMAT_GET_INT32(s->height, "height", 1); AMEDIAFORMAT_GET_INT32(s->stride, "stride", 0); s->stride = s->stride > 0 ? s->stride : s->width; AMEDIAFORMAT_GET_INT32(s->slice_height, "slice-height", 0); if (strstr(s->codec_name, "OMX.Nvidia.") && s->slice_height == 0) { s->slice_height = FFALIGN(s->height, 16); } else if (strstr(s->codec_name, "OMX.SEC.avc.dec")) { s->slice_height = avctx->height; s->stride = avctx->width; } else if (s->slice_height == 0) { s->slice_height = s->height; } AMEDIAFORMAT_GET_INT32(s->color_format, "color-format", 1); avctx->pix_fmt = mcdec_map_color_format(avctx, s, s->color_format); if (avctx->pix_fmt == AV_PIX_FMT_NONE) { av_log(avctx, AV_LOG_ERROR, "Output color format is not supported\n"); ret = AVERROR(EINVAL); goto fail; } /* Optional fields */ AMEDIAFORMAT_GET_INT32(s->crop_top, "crop-top", 0); AMEDIAFORMAT_GET_INT32(s->crop_bottom, "crop-bottom", 0); AMEDIAFORMAT_GET_INT32(s->crop_left, "crop-left", 0); AMEDIAFORMAT_GET_INT32(s->crop_right, "crop-right", 0); width = s->crop_right + 1 - s->crop_left; height = s->crop_bottom + 1 - s->crop_top; AMEDIAFORMAT_GET_INT32(s->display_width, "display-width", 0); AMEDIAFORMAT_GET_INT32(s->display_height, "display-height", 0); if (s->display_width && s->display_height) { AVRational sar = av_div_q( (AVRational){ s->display_width, s->display_height }, (AVRational){ width, height }); ff_set_sar(avctx, sar); } av_log(avctx, AV_LOG_INFO, "Output crop parameters top=%d bottom=%d left=%d right=%d, " "resulting dimensions width=%d height=%d\n", s->crop_top, s->crop_bottom, s->crop_left, s->crop_right, width, height); av_freep(&format); return ff_set_dimensions(avctx, width, height); fail: av_freep(&format); return ret; } static int mediacodec_dec_flush_codec(AVCodecContext *avctx, MediaCodecDecContext *s) { FFAMediaCodec *codec = s->codec; int status; s->output_buffer_count = 0; s->draining = 0; s->flushing = 0; s->eos = 0; atomic_fetch_add(&s->serial, 1); atomic_init(&s->hw_buffer_count, 0); s->current_input_buffer = -1; status = ff_AMediaCodec_flush(codec); if (status < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to flush codec\n"); return AVERROR_EXTERNAL; } return 0; } int ff_mediacodec_dec_init(AVCodecContext *avctx, MediaCodecDecContext *s, const char *mime, FFAMediaFormat *format) { int ret = 0; int status; int profile; enum AVPixelFormat pix_fmt; static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_MEDIACODEC, AV_PIX_FMT_NONE, }; s->avctx = avctx; atomic_init(&s->refcount, 1); atomic_init(&s->hw_buffer_count, 0); atomic_init(&s->serial, 1); s->current_input_buffer = -1; pix_fmt = ff_get_format(avctx, pix_fmts); if (pix_fmt == AV_PIX_FMT_MEDIACODEC) { AVMediaCodecContext *user_ctx = avctx->hwaccel_context; if (avctx->hw_device_ctx) { AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)(avctx->hw_device_ctx->data); if (device_ctx->type == AV_HWDEVICE_TYPE_MEDIACODEC) { if (device_ctx->hwctx) { AVMediaCodecDeviceContext *mediacodec_ctx = (AVMediaCodecDeviceContext *)device_ctx->hwctx; s->surface = ff_mediacodec_surface_ref(mediacodec_ctx->surface, avctx); av_log(avctx, AV_LOG_INFO, "Using surface %p\n", s->surface); } } } if (!s->surface && user_ctx && user_ctx->surface) { s->surface = ff_mediacodec_surface_ref(user_ctx->surface, avctx); av_log(avctx, AV_LOG_INFO, "Using surface %p\n", s->surface); } } profile = ff_AMediaCodecProfile_getProfileFromAVCodecContext(avctx); if (profile < 0) { av_log(avctx, AV_LOG_WARNING, "Unsupported or unknown profile\n"); } s->codec_name = ff_AMediaCodecList_getCodecNameByType(mime, profile, 0, avctx); if (!s->codec_name) { ret = AVERROR_EXTERNAL; goto fail; } av_log(avctx, AV_LOG_DEBUG, "Found decoder %s\n", s->codec_name); s->codec = ff_AMediaCodec_createCodecByName(s->codec_name); if (!s->codec) { av_log(avctx, AV_LOG_ERROR, "Failed to create media decoder for type %s and name %s\n", mime, s->codec_name); ret = AVERROR_EXTERNAL; goto fail; } status = ff_AMediaCodec_configure(s->codec, format, s->surface, NULL, 0); if (status < 0) { char *desc = ff_AMediaFormat_toString(format); av_log(avctx, AV_LOG_ERROR, "Failed to configure codec %s (status = %d) with format %s\n", s->codec_name, status, desc); av_freep(&desc); ret = AVERROR_EXTERNAL; goto fail; } status = ff_AMediaCodec_start(s->codec); if (status < 0) { char *desc = ff_AMediaFormat_toString(format); av_log(avctx, AV_LOG_ERROR, "Failed to start codec %s (status = %d) with format %s\n", s->codec_name, status, desc); av_freep(&desc); ret = AVERROR_EXTERNAL; goto fail; } s->format = ff_AMediaCodec_getOutputFormat(s->codec); if (s->format) { if ((ret = mediacodec_dec_parse_format(avctx, s)) < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to configure context\n"); goto fail; } } av_log(avctx, AV_LOG_DEBUG, "MediaCodec %p started successfully\n", s->codec); return 0; fail: av_log(avctx, AV_LOG_ERROR, "MediaCodec %p failed to start\n", s->codec); ff_mediacodec_dec_close(avctx, s); return ret; } int ff_mediacodec_dec_send(AVCodecContext *avctx, MediaCodecDecContext *s, AVPacket *pkt, bool wait) { int offset = 0; int need_draining = 0; uint8_t *data; size_t size; FFAMediaCodec *codec = s->codec; int status; int64_t input_dequeue_timeout_us = wait ? INPUT_DEQUEUE_TIMEOUT_US : 0; int64_t pts; if (s->flushing) { av_log(avctx, AV_LOG_ERROR, "Decoder is flushing and cannot accept new buffer " "until all output buffers have been released\n"); return AVERROR_EXTERNAL; } if (pkt->size == 0) { need_draining = 1; } if (s->draining && s->eos) { return AVERROR_EOF; } while (offset < pkt->size || (need_draining && !s->draining)) { ssize_t index = s->current_input_buffer; if (index < 0) { index = ff_AMediaCodec_dequeueInputBuffer(codec, input_dequeue_timeout_us); if (ff_AMediaCodec_infoTryAgainLater(codec, index)) { av_log(avctx, AV_LOG_TRACE, "No input buffer available, try again later\n"); break; } if (index < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to dequeue input buffer (status=%zd)\n", index); return AVERROR_EXTERNAL; } } s->current_input_buffer = -1; data = ff_AMediaCodec_getInputBuffer(codec, index, &size); if (!data) { av_log(avctx, AV_LOG_ERROR, "Failed to get input buffer\n"); return AVERROR_EXTERNAL; } pts = pkt->pts; if (pts == AV_NOPTS_VALUE) { av_log(avctx, AV_LOG_WARNING, "Input packet is missing PTS\n"); pts = 0; } if (pts && avctx->pkt_timebase.num && avctx->pkt_timebase.den) { pts = av_rescale_q(pts, avctx->pkt_timebase, AV_TIME_BASE_Q); } if (need_draining) { uint32_t flags = ff_AMediaCodec_getBufferFlagEndOfStream(codec); av_log(avctx, AV_LOG_DEBUG, "Sending End Of Stream signal\n"); status = ff_AMediaCodec_queueInputBuffer(codec, index, 0, 0, pts, flags); if (status < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to queue input empty buffer (status = %d)\n", status); return AVERROR_EXTERNAL; } av_log(avctx, AV_LOG_TRACE, "Queued empty EOS input buffer %zd with flags=%d\n", index, flags); s->draining = 1; return 0; } size = FFMIN(pkt->size - offset, size); memcpy(data, pkt->data + offset, size); offset += size; status = ff_AMediaCodec_queueInputBuffer(codec, index, 0, size, pts, 0); if (status < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to queue input buffer (status = %d)\n", status); return AVERROR_EXTERNAL; } av_log(avctx, AV_LOG_TRACE, "Queued input buffer %zd size=%zd ts=%"PRIi64"\n", index, size, pts); } if (offset == 0) return AVERROR(EAGAIN); return offset; } int ff_mediacodec_dec_receive(AVCodecContext *avctx, MediaCodecDecContext *s, AVFrame *frame, bool wait) { int ret; uint8_t *data; ssize_t index; size_t size; FFAMediaCodec *codec = s->codec; FFAMediaCodecBufferInfo info = { 0 }; int status; int64_t output_dequeue_timeout_us = OUTPUT_DEQUEUE_TIMEOUT_US; if (s->draining && s->eos) { return AVERROR_EOF; } if (s->draining) { /* If the codec is flushing or need to be flushed, block for a fair * amount of time to ensure we got a frame */ output_dequeue_timeout_us = OUTPUT_DEQUEUE_BLOCK_TIMEOUT_US; } else if (s->output_buffer_count == 0 || !wait) { /* If the codec hasn't produced any frames, do not block so we * can push data to it as fast as possible, and get the first * frame */ output_dequeue_timeout_us = 0; } index = ff_AMediaCodec_dequeueOutputBuffer(codec, &info, output_dequeue_timeout_us); if (index >= 0) { av_log(avctx, AV_LOG_TRACE, "Got output buffer %zd" " offset=%" PRIi32 " size=%" PRIi32 " ts=%" PRIi64 " flags=%" PRIu32 "\n", index, info.offset, info.size, info.presentationTimeUs, info.flags); if (info.flags & ff_AMediaCodec_getBufferFlagEndOfStream(codec)) { s->eos = 1; } if (info.size) { if (s->surface) { if ((ret = mediacodec_wrap_hw_buffer(avctx, s, index, &info, frame)) < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to wrap MediaCodec buffer\n"); return ret; } } else { data = ff_AMediaCodec_getOutputBuffer(codec, index, &size); if (!data) { av_log(avctx, AV_LOG_ERROR, "Failed to get output buffer\n"); return AVERROR_EXTERNAL; } if ((ret = mediacodec_wrap_sw_buffer(avctx, s, data, size, index, &info, frame)) < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to wrap MediaCodec buffer\n"); return ret; } } s->output_buffer_count++; return 0; } else { status = ff_AMediaCodec_releaseOutputBuffer(codec, index, 0); if (status < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to release output buffer\n"); } } } else if (ff_AMediaCodec_infoOutputFormatChanged(codec, index)) { char *format = NULL; if (s->format) { status = ff_AMediaFormat_delete(s->format); if (status < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to delete MediaFormat %p\n", s->format); } } s->format = ff_AMediaCodec_getOutputFormat(codec); if (!s->format) { av_log(avctx, AV_LOG_ERROR, "Failed to get output format\n"); return AVERROR_EXTERNAL; } format = ff_AMediaFormat_toString(s->format); if (!format) { return AVERROR_EXTERNAL; } av_log(avctx, AV_LOG_INFO, "Output MediaFormat changed to %s\n", format); av_freep(&format); if ((ret = mediacodec_dec_parse_format(avctx, s)) < 0) { return ret; } } else if (ff_AMediaCodec_infoOutputBuffersChanged(codec, index)) { ff_AMediaCodec_cleanOutputBuffers(codec); } else if (ff_AMediaCodec_infoTryAgainLater(codec, index)) { if (s->draining) { av_log(avctx, AV_LOG_ERROR, "Failed to dequeue output buffer within %" PRIi64 "ms " "while draining remaining frames, output will probably lack frames\n", output_dequeue_timeout_us / 1000); } else { av_log(avctx, AV_LOG_TRACE, "No output buffer available, try again later\n"); } } else { av_log(avctx, AV_LOG_ERROR, "Failed to dequeue output buffer (status=%zd)\n", index); return AVERROR_EXTERNAL; } return AVERROR(EAGAIN); } /* * ff_mediacodec_dec_flush returns 0 if the flush cannot be performed on * the codec (because the user retains frames). The codec stays in the * flushing state. * * ff_mediacodec_dec_flush returns 1 if the flush can actually be * performed on the codec. The codec leaves the flushing state and can * process again packets. * * ff_mediacodec_dec_flush returns a negative value if an error has * occurred. */ int ff_mediacodec_dec_flush(AVCodecContext *avctx, MediaCodecDecContext *s) { if (!s->surface || atomic_load(&s->refcount) == 1) { int ret; /* No frames (holding a reference to the codec) are retained by the * user, thus we can flush the codec and returns accordingly */ if ((ret = mediacodec_dec_flush_codec(avctx, s)) < 0) { return ret; } return 1; } s->flushing = 1; return 0; } int ff_mediacodec_dec_close(AVCodecContext *avctx, MediaCodecDecContext *s) { ff_mediacodec_dec_unref(s); return 0; } int ff_mediacodec_dec_is_flushing(AVCodecContext *avctx, MediaCodecDecContext *s) { return s->flushing; }