diff options
Diffstat (limited to 'libavcodec/mediacodecdec_common.c')
| -rw-r--r-- | libavcodec/mediacodecdec_common.c | 807 |
1 files changed, 807 insertions, 0 deletions
diff --git a/libavcodec/mediacodecdec_common.c b/libavcodec/mediacodecdec_common.c new file mode 100644 index 0000000000..7c2661f672 --- /dev/null +++ b/libavcodec/mediacodecdec_common.c @@ -0,0 +1,807 @@ +/* + * 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 (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_send(AVCodecContext *avctx, MediaCodecDecContext *s, + AVPacket *pkt, bool wait) +{ + int offset = 0; + int need_draining = 0; + uint8_t *data; + ssize_t index = s->current_input_buffer; + 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)) { + 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 && 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 input buffer %zd size=%zd ts=%"PRIi64"\n", index, size, pts); + + s->draining = 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, 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; +} |