/* * Android MediaCodec decoder * * Copyright (c) 2015-2016 Matthieu Bouron * * 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 #include #include "libavutil/common.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_sw_buffer.h" #include "mediacodec_wrapper.h" #include "mediacodecdec.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 * * Copyright (C) 2012, Rafaël Carré * * Copyright (C) 2015, Sebastian Dröge * * Copyright (C) 2014-2015, Collabora Ltd. * Author: Matthieu Bouron * * Copyright (C) 2015, Edward Hervey * Author: Edward Hervey * * Copyright (C) 2015, Matthew Waters * * 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 (!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 int mediacodec_wrap_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 */ frame->pkt_pts = info->presentationTimeUs; av_log(avctx, AV_LOG_DEBUG, "Frame: width=%d stride=%d height=%d slice-height=%d " "crop-top=%d crop-bottom=%d crop-left=%d crop-right=%d encoder=%s\n" "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(NULL, AV_LOG_ERROR, "Failed to release output buffer\n"); ret = AVERROR_EXTERNAL; } return ret; } static int mediacodec_dec_parse_format(AVCodecContext *avctx, MediaCodecDecContext *s) { int width = 0; int height = 0; int32_t value = 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); av_freep(&format); /* Mandatory fields */ if (!ff_AMediaFormat_getInt32(s->format, "width", &value)) { format = ff_AMediaFormat_toString(s->format); av_log(avctx, AV_LOG_ERROR, "Could not get %s from format %s\n", "width", format); av_freep(&format); return AVERROR_EXTERNAL; } s->width = value; if (!ff_AMediaFormat_getInt32(s->format, "height", &value)) { format = ff_AMediaFormat_toString(s->format); av_log(avctx, AV_LOG_ERROR, "Could not get %s from format %s\n", "height", format); av_freep(&format); return AVERROR_EXTERNAL; } s->height = value; if (!ff_AMediaFormat_getInt32(s->format, "stride", &value)) { format = ff_AMediaFormat_toString(s->format); av_log(avctx, AV_LOG_ERROR, "Could not get %s from format %s\n", "stride", format); av_freep(&format); return AVERROR_EXTERNAL; } s->stride = value > 0 ? value : s->width; if (!ff_AMediaFormat_getInt32(s->format, "slice-height", &value)) { format = ff_AMediaFormat_toString(s->format); av_log(avctx, AV_LOG_ERROR, "Could not get %s from format %s\n", "slice-height", format); av_freep(&format); return AVERROR_EXTERNAL; } s->slice_height = value > 0 ? value : s->height; if (strstr(s->codec_name, "OMX.Nvidia.")) { 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; } if (!ff_AMediaFormat_getInt32(s->format, "color-format", &value)) { format = ff_AMediaFormat_toString(s->format); av_log(avctx, AV_LOG_ERROR, "Could not get %s from format %s\n", "color-format", format); av_freep(&format); return AVERROR_EXTERNAL; } s->color_format = value; s->pix_fmt = avctx->pix_fmt = mcdec_map_color_format(avctx, s, value); if (avctx->pix_fmt == AV_PIX_FMT_NONE) { av_log(avctx, AV_LOG_ERROR, "Output color format is not supported\n"); return AVERROR(EINVAL); } /* Optional fields */ if (ff_AMediaFormat_getInt32(s->format, "crop-top", &value)) s->crop_top = value; if (ff_AMediaFormat_getInt32(s->format, "crop-bottom", &value)) s->crop_bottom = value; if (ff_AMediaFormat_getInt32(s->format, "crop-left", &value)) s->crop_left = value; if (ff_AMediaFormat_getInt32(s->format, "crop-right", &value)) s->crop_right = value; width = s->crop_right + 1 - s->crop_left; height = s->crop_bottom + 1 - s->crop_top; 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); return ff_set_dimensions(avctx, width, height); } int ff_mediacodec_dec_init(AVCodecContext *avctx, MediaCodecDecContext *s, const char *mime, FFAMediaFormat *format) { int ret = 0; int status; s->first_buffer_at = av_gettime(); s->codec_name = ff_AMediaCodecList_getCodecNameByType(mime, avctx->width, avctx->height, 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, NULL, NULL, 0); if (status < 0) { char *desc = ff_AMediaFormat_toString(format); av_log(avctx, AV_LOG_ERROR, "Failed to configure codec (status = %d) with format %s\n", 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 (status = %d) with format %s\n", 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_decode(AVCodecContext *avctx, MediaCodecDecContext *s, AVFrame *frame, int *got_frame, AVPacket *pkt) { int ret; int offset = 0; int need_flushing = 0; uint8_t *data; ssize_t index; size_t size; FFAMediaCodec *codec = s->codec; FFAMediaCodecBufferInfo info = { 0 }; int status; int64_t input_dequeue_timeout_us = INPUT_DEQUEUE_TIMEOUT_US; int64_t output_dequeue_timeout_us = OUTPUT_DEQUEUE_TIMEOUT_US; if (pkt->size == 0) { need_flushing = 1; } if (s->flushing && need_flushing && s->queued_buffer_nb <= 0) { return 0; } while (offset < pkt->size || (need_flushing && !s->flushing)) { int size; index = ff_AMediaCodec_dequeueInputBuffer(codec, input_dequeue_timeout_us); if (ff_AMediaCodec_infoTryAgainLater(codec, index)) { break; } if (index < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to dequeue input buffer (status=%zd)\n", index); return AVERROR_EXTERNAL; } data = ff_AMediaCodec_getInputBuffer(codec, index, &size); if (!data) { av_log(avctx, AV_LOG_ERROR, "Failed to get input buffer\n"); return AVERROR_EXTERNAL; } if (need_flushing) { 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, pkt->pts, flags); if (status < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to queue input empty buffer (status = %d)\n", status); return AVERROR_EXTERNAL; } s->flushing = 1; break; } else { size = FFMIN(pkt->size - offset, size); memcpy(data, pkt->data + offset, size); offset += size; status = ff_AMediaCodec_queueInputBuffer(codec, index, 0, size, pkt->pts, 0); if (status < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to queue input buffer (status = %d)\n", status); return AVERROR_EXTERNAL; } s->queued_buffer_nb++; if (s->queued_buffer_nb > s->queued_buffer_max) s->queued_buffer_max = s->queued_buffer_nb; } } if (s->flushing) { /* If the codec is flushing, 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->dequeued_buffer_nb == 0) { /* 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) { int ret; if (!s->first_buffer++) { av_log(avctx, AV_LOG_DEBUG, "Got first buffer after %fms\n", (av_gettime() - s->first_buffer_at) / 1000); } av_log(avctx, AV_LOG_DEBUG, "Got output buffer %zd" " offset=%" PRIi32 " size=%" PRIi32 " ts=%" PRIi64 " flags=%" PRIu32 "\n", index, info.offset, info.size, info.presentationTimeUs, info.flags); 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_buffer(avctx, s, data, size, index, &info, frame)) < 0) { av_log(avctx, AV_LOG_ERROR, "Failed to wrap MediaCodec buffer\n"); return ret; } *got_frame = 1; s->queued_buffer_nb--; s->dequeued_buffer_nb++; } 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->flushing) { av_log(avctx, AV_LOG_ERROR, "Failed to dequeue output buffer within %" PRIi64 "ms " "while flushing remaining frames, output will probably lack last %d frames\n", output_dequeue_timeout_us / 1000, s->queued_buffer_nb); } else { av_log(avctx, AV_LOG_DEBUG, "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 offset; } int ff_mediacodec_dec_flush(AVCodecContext *avctx, MediaCodecDecContext *s) { FFAMediaCodec *codec = s->codec; int status; s->queued_buffer_nb = 0; s->dequeued_buffer_nb = 0; s->flushing = 0; status = ff_AMediaCodec_flush(codec); if (status < 0) { av_log(NULL, AV_LOG_ERROR, "Failed to flush MediaCodec %p", codec); return AVERROR_EXTERNAL; } s->first_buffer = 0; s->first_buffer_at = av_gettime(); return 0; } int ff_mediacodec_dec_close(AVCodecContext *avctx, MediaCodecDecContext *s) { if (s->codec) { ff_AMediaCodec_delete(s->codec); s->codec = NULL; } if (s->format) { ff_AMediaFormat_delete(s->format); s->format = NULL; } av_freep(&s->codec_name); return 0; }