diff options
Diffstat (limited to 'libavcodec/mediacodecdec.c')
| -rw-r--r-- | libavcodec/mediacodecdec.c | 570 |
1 files changed, 570 insertions, 0 deletions
diff --git a/libavcodec/mediacodecdec.c b/libavcodec/mediacodecdec.c new file mode 100644 index 0000000000..bd10ff7264 --- /dev/null +++ b/libavcodec/mediacodecdec.c @@ -0,0 +1,570 @@ +/* + * 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/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 <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 (!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; + } + if (value > 0) { + s->slice_height = value; + } else { + s->slice_height = 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; + } + + return 0; +} |