| /* |
| * Android MediaCodec MPEG-2 / H.264 / H.265 / MPEG-4 / VP8 / VP9 decoders |
| * |
| * 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 <stdint.h> |
| #include <string.h> |
| |
| #include "libavutil/avassert.h" |
| #include "libavutil/common.h" |
| #include "libavutil/opt.h" |
| #include "libavutil/intreadwrite.h" |
| #include "libavutil/pixfmt.h" |
| #include "libavutil/internal.h" |
| |
| #include "avcodec.h" |
| #include "decode.h" |
| #include "h264_parse.h" |
| #include "hevc_parse.h" |
| #include "hwconfig.h" |
| #include "internal.h" |
| #include "mediacodec_wrapper.h" |
| #include "mediacodecdec_common.h" |
| |
| typedef struct MediaCodecH264DecContext { |
| |
| AVClass *avclass; |
| |
| MediaCodecDecContext *ctx; |
| |
| AVPacket buffered_pkt; |
| |
| int delay_flush; |
| int amlogic_mpeg2_api23_workaround; |
| |
| } MediaCodecH264DecContext; |
| |
| static av_cold int mediacodec_decode_close(AVCodecContext *avctx) |
| { |
| MediaCodecH264DecContext *s = avctx->priv_data; |
| |
| ff_mediacodec_dec_close(avctx, s->ctx); |
| s->ctx = NULL; |
| |
| av_packet_unref(&s->buffered_pkt); |
| |
| return 0; |
| } |
| |
| #if CONFIG_H264_MEDIACODEC_DECODER || CONFIG_HEVC_MEDIACODEC_DECODER |
| static int h2645_ps_to_nalu(const uint8_t *src, int src_size, uint8_t **out, int *out_size) |
| { |
| int i; |
| int ret = 0; |
| uint8_t *p = NULL; |
| static const uint8_t nalu_header[] = { 0x00, 0x00, 0x00, 0x01 }; |
| |
| if (!out || !out_size) { |
| return AVERROR(EINVAL); |
| } |
| |
| p = av_malloc(sizeof(nalu_header) + src_size); |
| if (!p) { |
| return AVERROR(ENOMEM); |
| } |
| |
| *out = p; |
| *out_size = sizeof(nalu_header) + src_size; |
| |
| memcpy(p, nalu_header, sizeof(nalu_header)); |
| memcpy(p + sizeof(nalu_header), src, src_size); |
| |
| /* Escape 0x00, 0x00, 0x0{0-3} pattern */ |
| for (i = 4; i < *out_size; i++) { |
| if (i < *out_size - 3 && |
| p[i + 0] == 0 && |
| p[i + 1] == 0 && |
| p[i + 2] <= 3) { |
| uint8_t *new; |
| |
| *out_size += 1; |
| new = av_realloc(*out, *out_size); |
| if (!new) { |
| ret = AVERROR(ENOMEM); |
| goto done; |
| } |
| *out = p = new; |
| |
| i = i + 2; |
| memmove(p + i + 1, p + i, *out_size - (i + 1)); |
| p[i] = 0x03; |
| } |
| } |
| done: |
| if (ret < 0) { |
| av_freep(out); |
| *out_size = 0; |
| } |
| |
| return ret; |
| } |
| #endif |
| |
| #if CONFIG_H264_MEDIACODEC_DECODER |
| static int h264_set_extradata(AVCodecContext *avctx, FFAMediaFormat *format) |
| { |
| int i; |
| int ret; |
| |
| H264ParamSets ps; |
| const PPS *pps = NULL; |
| const SPS *sps = NULL; |
| int is_avc = 0; |
| int nal_length_size = 0; |
| |
| memset(&ps, 0, sizeof(ps)); |
| |
| ret = ff_h264_decode_extradata(avctx->extradata, avctx->extradata_size, |
| &ps, &is_avc, &nal_length_size, 0, avctx); |
| if (ret < 0) { |
| goto done; |
| } |
| |
| for (i = 0; i < MAX_PPS_COUNT; i++) { |
| if (ps.pps_list[i]) { |
| pps = (const PPS*)ps.pps_list[i]->data; |
| break; |
| } |
| } |
| |
| if (pps) { |
| if (ps.sps_list[pps->sps_id]) { |
| sps = (const SPS*)ps.sps_list[pps->sps_id]->data; |
| } |
| } |
| |
| if (pps && sps) { |
| uint8_t *data = NULL; |
| int data_size = 0; |
| |
| if ((ret = h2645_ps_to_nalu(sps->data, sps->data_size, &data, &data_size)) < 0) { |
| goto done; |
| } |
| ff_AMediaFormat_setBuffer(format, "csd-0", (void*)data, data_size); |
| av_freep(&data); |
| |
| if ((ret = h2645_ps_to_nalu(pps->data, pps->data_size, &data, &data_size)) < 0) { |
| goto done; |
| } |
| ff_AMediaFormat_setBuffer(format, "csd-1", (void*)data, data_size); |
| av_freep(&data); |
| } else { |
| const int warn = is_avc && (avctx->codec_tag == MKTAG('a','v','c','1') || |
| avctx->codec_tag == MKTAG('a','v','c','2')); |
| av_log(avctx, warn ? AV_LOG_WARNING : AV_LOG_DEBUG, |
| "Could not extract PPS/SPS from extradata\n"); |
| ret = 0; |
| } |
| |
| done: |
| ff_h264_ps_uninit(&ps); |
| |
| return ret; |
| } |
| #endif |
| |
| #if CONFIG_HEVC_MEDIACODEC_DECODER |
| static int hevc_set_extradata(AVCodecContext *avctx, FFAMediaFormat *format) |
| { |
| int i; |
| int ret; |
| |
| HEVCParamSets ps; |
| HEVCSEI sei; |
| |
| const HEVCVPS *vps = NULL; |
| const HEVCPPS *pps = NULL; |
| const HEVCSPS *sps = NULL; |
| int is_nalff = 0; |
| int nal_length_size = 0; |
| |
| uint8_t *vps_data = NULL; |
| uint8_t *sps_data = NULL; |
| uint8_t *pps_data = NULL; |
| int vps_data_size = 0; |
| int sps_data_size = 0; |
| int pps_data_size = 0; |
| |
| memset(&ps, 0, sizeof(ps)); |
| memset(&sei, 0, sizeof(sei)); |
| |
| ret = ff_hevc_decode_extradata(avctx->extradata, avctx->extradata_size, |
| &ps, &sei, &is_nalff, &nal_length_size, 0, 1, avctx); |
| if (ret < 0) { |
| goto done; |
| } |
| |
| for (i = 0; i < HEVC_MAX_VPS_COUNT; i++) { |
| if (ps.vps_list[i]) { |
| vps = (const HEVCVPS*)ps.vps_list[i]->data; |
| break; |
| } |
| } |
| |
| for (i = 0; i < HEVC_MAX_PPS_COUNT; i++) { |
| if (ps.pps_list[i]) { |
| pps = (const HEVCPPS*)ps.pps_list[i]->data; |
| break; |
| } |
| } |
| |
| if (pps) { |
| if (ps.sps_list[pps->sps_id]) { |
| sps = (const HEVCSPS*)ps.sps_list[pps->sps_id]->data; |
| } |
| } |
| |
| if (vps && pps && sps) { |
| uint8_t *data; |
| int data_size; |
| |
| if ((ret = h2645_ps_to_nalu(vps->data, vps->data_size, &vps_data, &vps_data_size)) < 0 || |
| (ret = h2645_ps_to_nalu(sps->data, sps->data_size, &sps_data, &sps_data_size)) < 0 || |
| (ret = h2645_ps_to_nalu(pps->data, pps->data_size, &pps_data, &pps_data_size)) < 0) { |
| goto done; |
| } |
| |
| data_size = vps_data_size + sps_data_size + pps_data_size; |
| data = av_mallocz(data_size); |
| if (!data) { |
| ret = AVERROR(ENOMEM); |
| goto done; |
| } |
| |
| memcpy(data , vps_data, vps_data_size); |
| memcpy(data + vps_data_size , sps_data, sps_data_size); |
| memcpy(data + vps_data_size + sps_data_size, pps_data, pps_data_size); |
| |
| ff_AMediaFormat_setBuffer(format, "csd-0", data, data_size); |
| |
| av_freep(&data); |
| } else { |
| const int warn = is_nalff && avctx->codec_tag == MKTAG('h','v','c','1'); |
| av_log(avctx, warn ? AV_LOG_WARNING : AV_LOG_DEBUG, |
| "Could not extract VPS/PPS/SPS from extradata\n"); |
| ret = 0; |
| } |
| |
| done: |
| ff_hevc_ps_uninit(&ps); |
| |
| av_freep(&vps_data); |
| av_freep(&sps_data); |
| av_freep(&pps_data); |
| |
| return ret; |
| } |
| #endif |
| |
| #if CONFIG_MPEG2_MEDIACODEC_DECODER || \ |
| CONFIG_MPEG4_MEDIACODEC_DECODER || \ |
| CONFIG_VP8_MEDIACODEC_DECODER || \ |
| CONFIG_VP9_MEDIACODEC_DECODER |
| static int common_set_extradata(AVCodecContext *avctx, FFAMediaFormat *format) |
| { |
| int ret = 0; |
| |
| if (avctx->extradata) { |
| ff_AMediaFormat_setBuffer(format, "csd-0", avctx->extradata, avctx->extradata_size); |
| } |
| |
| return ret; |
| } |
| #endif |
| |
| static av_cold int mediacodec_decode_init(AVCodecContext *avctx) |
| { |
| int ret; |
| int sdk_int; |
| |
| const char *codec_mime = NULL; |
| |
| FFAMediaFormat *format = NULL; |
| MediaCodecH264DecContext *s = avctx->priv_data; |
| |
| format = ff_AMediaFormat_new(); |
| if (!format) { |
| av_log(avctx, AV_LOG_ERROR, "Failed to create media format\n"); |
| ret = AVERROR_EXTERNAL; |
| goto done; |
| } |
| |
| switch (avctx->codec_id) { |
| #if CONFIG_H264_MEDIACODEC_DECODER |
| case AV_CODEC_ID_H264: |
| codec_mime = "video/avc"; |
| |
| ret = h264_set_extradata(avctx, format); |
| if (ret < 0) |
| goto done; |
| break; |
| #endif |
| #if CONFIG_HEVC_MEDIACODEC_DECODER |
| case AV_CODEC_ID_HEVC: |
| codec_mime = "video/hevc"; |
| |
| ret = hevc_set_extradata(avctx, format); |
| if (ret < 0) |
| goto done; |
| break; |
| #endif |
| #if CONFIG_MPEG2_MEDIACODEC_DECODER |
| case AV_CODEC_ID_MPEG2VIDEO: |
| codec_mime = "video/mpeg2"; |
| |
| ret = common_set_extradata(avctx, format); |
| if (ret < 0) |
| goto done; |
| break; |
| #endif |
| #if CONFIG_MPEG4_MEDIACODEC_DECODER |
| case AV_CODEC_ID_MPEG4: |
| codec_mime = "video/mp4v-es", |
| |
| ret = common_set_extradata(avctx, format); |
| if (ret < 0) |
| goto done; |
| break; |
| #endif |
| #if CONFIG_VP8_MEDIACODEC_DECODER |
| case AV_CODEC_ID_VP8: |
| codec_mime = "video/x-vnd.on2.vp8"; |
| |
| ret = common_set_extradata(avctx, format); |
| if (ret < 0) |
| goto done; |
| break; |
| #endif |
| #if CONFIG_VP9_MEDIACODEC_DECODER |
| case AV_CODEC_ID_VP9: |
| codec_mime = "video/x-vnd.on2.vp9"; |
| |
| ret = common_set_extradata(avctx, format); |
| if (ret < 0) |
| goto done; |
| break; |
| #endif |
| default: |
| av_assert0(0); |
| } |
| |
| ff_AMediaFormat_setString(format, "mime", codec_mime); |
| ff_AMediaFormat_setInt32(format, "width", avctx->width); |
| ff_AMediaFormat_setInt32(format, "height", avctx->height); |
| |
| s->ctx = av_mallocz(sizeof(*s->ctx)); |
| if (!s->ctx) { |
| av_log(avctx, AV_LOG_ERROR, "Failed to allocate MediaCodecDecContext\n"); |
| ret = AVERROR(ENOMEM); |
| goto done; |
| } |
| |
| s->ctx->delay_flush = s->delay_flush; |
| |
| if ((ret = ff_mediacodec_dec_init(avctx, s->ctx, codec_mime, format)) < 0) { |
| s->ctx = NULL; |
| goto done; |
| } |
| |
| av_log(avctx, AV_LOG_INFO, |
| "MediaCodec started successfully: codec = %s, ret = %d\n", |
| s->ctx->codec_name, ret); |
| |
| sdk_int = ff_Build_SDK_INT(avctx); |
| if (sdk_int <= 23 && |
| strcmp(s->ctx->codec_name, "OMX.amlogic.mpeg2.decoder.awesome") == 0) { |
| av_log(avctx, AV_LOG_INFO, "Enabling workaround for %s on API=%d\n", |
| s->ctx->codec_name, sdk_int); |
| s->amlogic_mpeg2_api23_workaround = 1; |
| } |
| |
| done: |
| if (format) { |
| ff_AMediaFormat_delete(format); |
| } |
| |
| if (ret < 0) { |
| mediacodec_decode_close(avctx); |
| } |
| |
| return ret; |
| } |
| |
| static int mediacodec_receive_frame(AVCodecContext *avctx, AVFrame *frame) |
| { |
| MediaCodecH264DecContext *s = avctx->priv_data; |
| int ret; |
| ssize_t index; |
| |
| /* In delay_flush mode, wait until the user has released or rendered |
| all retained frames. */ |
| if (s->delay_flush && ff_mediacodec_dec_is_flushing(avctx, s->ctx)) { |
| if (!ff_mediacodec_dec_flush(avctx, s->ctx)) { |
| return AVERROR(EAGAIN); |
| } |
| } |
| |
| /* poll for new frame */ |
| ret = ff_mediacodec_dec_receive(avctx, s->ctx, frame, false); |
| if (ret != AVERROR(EAGAIN)) |
| return ret; |
| |
| /* feed decoder */ |
| while (1) { |
| if (s->ctx->current_input_buffer < 0) { |
| /* poll for input space */ |
| index = ff_AMediaCodec_dequeueInputBuffer(s->ctx->codec, 0); |
| if (index < 0) { |
| /* no space, block for an output frame to appear */ |
| return ff_mediacodec_dec_receive(avctx, s->ctx, frame, true); |
| } |
| s->ctx->current_input_buffer = index; |
| } |
| |
| /* try to flush any buffered packet data */ |
| if (s->buffered_pkt.size > 0) { |
| ret = ff_mediacodec_dec_send(avctx, s->ctx, &s->buffered_pkt, false); |
| if (ret >= 0) { |
| s->buffered_pkt.size -= ret; |
| s->buffered_pkt.data += ret; |
| if (s->buffered_pkt.size <= 0) { |
| av_packet_unref(&s->buffered_pkt); |
| } else { |
| av_log(avctx, AV_LOG_WARNING, |
| "could not send entire packet in single input buffer (%d < %d)\n", |
| ret, s->buffered_pkt.size+ret); |
| } |
| } else if (ret < 0 && ret != AVERROR(EAGAIN)) { |
| return ret; |
| } |
| |
| if (s->amlogic_mpeg2_api23_workaround && s->buffered_pkt.size <= 0) { |
| /* fallthrough to fetch next packet regardless of input buffer space */ |
| } else { |
| /* poll for space again */ |
| continue; |
| } |
| } |
| |
| /* fetch new packet or eof */ |
| ret = ff_decode_get_packet(avctx, &s->buffered_pkt); |
| if (ret == AVERROR_EOF) { |
| AVPacket null_pkt = { 0 }; |
| ret = ff_mediacodec_dec_send(avctx, s->ctx, &null_pkt, true); |
| if (ret < 0) |
| return ret; |
| return ff_mediacodec_dec_receive(avctx, s->ctx, frame, true); |
| } else if (ret == AVERROR(EAGAIN) && s->ctx->current_input_buffer < 0) { |
| return ff_mediacodec_dec_receive(avctx, s->ctx, frame, true); |
| } else if (ret < 0) { |
| return ret; |
| } |
| } |
| |
| return AVERROR(EAGAIN); |
| } |
| |
| static void mediacodec_decode_flush(AVCodecContext *avctx) |
| { |
| MediaCodecH264DecContext *s = avctx->priv_data; |
| |
| av_packet_unref(&s->buffered_pkt); |
| |
| ff_mediacodec_dec_flush(avctx, s->ctx); |
| } |
| |
| static const AVCodecHWConfigInternal *const mediacodec_hw_configs[] = { |
| &(const AVCodecHWConfigInternal) { |
| .public = { |
| .pix_fmt = AV_PIX_FMT_MEDIACODEC, |
| .methods = AV_CODEC_HW_CONFIG_METHOD_AD_HOC | |
| AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX, |
| .device_type = AV_HWDEVICE_TYPE_MEDIACODEC, |
| }, |
| .hwaccel = NULL, |
| }, |
| NULL |
| }; |
| |
| #define OFFSET(x) offsetof(MediaCodecH264DecContext, x) |
| #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM |
| static const AVOption ff_mediacodec_vdec_options[] = { |
| { "delay_flush", "Delay flush until hw output buffers are returned to the decoder", |
| OFFSET(delay_flush), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, VD }, |
| { NULL } |
| }; |
| |
| #define DECLARE_MEDIACODEC_VCLASS(short_name) \ |
| static const AVClass ff_##short_name##_mediacodec_dec_class = { \ |
| .class_name = #short_name "_mediacodec", \ |
| .item_name = av_default_item_name, \ |
| .option = ff_mediacodec_vdec_options, \ |
| .version = LIBAVUTIL_VERSION_INT, \ |
| }; |
| |
| #define DECLARE_MEDIACODEC_VDEC(short_name, full_name, codec_id, bsf) \ |
| DECLARE_MEDIACODEC_VCLASS(short_name) \ |
| AVCodec ff_##short_name##_mediacodec_decoder = { \ |
| .name = #short_name "_mediacodec", \ |
| .long_name = NULL_IF_CONFIG_SMALL(full_name " Android MediaCodec decoder"), \ |
| .type = AVMEDIA_TYPE_VIDEO, \ |
| .id = codec_id, \ |
| .priv_class = &ff_##short_name##_mediacodec_dec_class, \ |
| .priv_data_size = sizeof(MediaCodecH264DecContext), \ |
| .init = mediacodec_decode_init, \ |
| .receive_frame = mediacodec_receive_frame, \ |
| .flush = mediacodec_decode_flush, \ |
| .close = mediacodec_decode_close, \ |
| .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HARDWARE, \ |
| .caps_internal = FF_CODEC_CAP_SETS_PKT_DTS, \ |
| .bsfs = bsf, \ |
| .hw_configs = mediacodec_hw_configs, \ |
| .wrapper_name = "mediacodec", \ |
| }; \ |
| |
| #if CONFIG_H264_MEDIACODEC_DECODER |
| DECLARE_MEDIACODEC_VDEC(h264, "H.264", AV_CODEC_ID_H264, "h264_mp4toannexb") |
| #endif |
| |
| #if CONFIG_HEVC_MEDIACODEC_DECODER |
| DECLARE_MEDIACODEC_VDEC(hevc, "H.265", AV_CODEC_ID_HEVC, "hevc_mp4toannexb") |
| #endif |
| |
| #if CONFIG_MPEG2_MEDIACODEC_DECODER |
| DECLARE_MEDIACODEC_VDEC(mpeg2, "MPEG-2", AV_CODEC_ID_MPEG2VIDEO, NULL) |
| #endif |
| |
| #if CONFIG_MPEG4_MEDIACODEC_DECODER |
| DECLARE_MEDIACODEC_VDEC(mpeg4, "MPEG-4", AV_CODEC_ID_MPEG4, NULL) |
| #endif |
| |
| #if CONFIG_VP8_MEDIACODEC_DECODER |
| DECLARE_MEDIACODEC_VDEC(vp8, "VP8", AV_CODEC_ID_VP8, NULL) |
| #endif |
| |
| #if CONFIG_VP9_MEDIACODEC_DECODER |
| DECLARE_MEDIACODEC_VDEC(vp9, "VP9", AV_CODEC_ID_VP9, NULL) |
| #endif |
